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Upgrade to FDKv2
Bug: 71430241 Test: CTS DecoderTest and DecoderTestAacDrc original-Change-Id: Iaa20f749b8a04d553b20247cfe1a8930ebbabe30 Apply clang-format also on header files. original-Change-Id: I14de1ef16bbc79ec0283e745f98356a10efeb2e4 Fixes for MPEG-D DRC original-Change-Id: If1de2d74bbbac84b3f67de3b88b83f6a23b8a15c Catch unsupported tw_mdct at an early stage original-Change-Id: Ied9dd00d754162a0e3ca1ae3e6b854315d818afe Fixing PVC transition frames original-Change-Id: Ib75725abe39252806c32d71176308f2c03547a4e Move qmf bands sanity check original-Change-Id: Iab540c3013c174d9490d2ae100a4576f51d8dbc4 Initialize scaling variable original-Change-Id: I3c4087101b70e998c71c1689b122b0d7762e0f9e Add 16 qmf band configuration to getSlotNrgHQ() original-Change-Id: I49a5d30f703a1b126ff163df9656db2540df21f1 Always apply byte alignment at the end of the AudioMuxElement original-Change-Id: I42d560287506d65d4c3de8bfe3eb9a4ebeb4efc7 Setup SBR element only if no parse error exists original-Change-Id: I1915b73704bc80ab882b9173d6bec59cbd073676 Additional array index check in HCR original-Change-Id: I18cc6e501ea683b5009f1bbee26de8ddd04d8267 Fix fade-in index selection in concealment module original-Change-Id: Ibf802ed6ed8c05e9257e1f3b6d0ac1162e9b81c1 Enable explicit backward compatible parser for AAC_LD original-Change-Id: I27e9c678dcb5d40ed760a6d1e06609563d02482d Skip spatial specific config in explicit backward compatible ASC original-Change-Id: Iff7cc365561319e886090cedf30533f562ea4d6e Update flags description in decoder API original-Change-Id: I9a5b4f8da76bb652f5580cbd3ba9760425c43830 Add QMF domain reset function original-Change-Id: I4f89a8a2c0277d18103380134e4ed86996e9d8d6 DRC upgrade v2.1.0 original-Change-Id: I5731c0540139dab220094cd978ef42099fc45b74 Fix integer overflow in sqrtFixp_lookup() original-Change-Id: I429a6f0d19aa2cc957e0f181066f0ca73968c914 Fix integer overflow in invSqrtNorm2() original-Change-Id: I84de5cbf9fb3adeb611db203fe492fabf4eb6155 Fix integer overflow in GenerateRandomVector() original-Change-Id: I3118a641008bd9484d479e5b0b1ee2b5d7d44d74 Fix integer overflow in adjustTimeSlot_EldGrid() original-Change-Id: I29d503c247c5c8282349b79df940416a512fb9d5 Fix integer overflow in FDKsbrEnc_codeEnvelope() original-Change-Id: I6b34b61ebb9d525b0c651ed08de2befc1f801449 Follow-up on: Fix integer overflow in adjustTimeSlot_EldGrid() original-Change-Id: I6f8f578cc7089e5eb7c7b93e580b72ca35ad689a Fix integer overflow in get_pk_v2() original-Change-Id: I63375bed40d45867f6eeaa72b20b1f33e815938c Fix integer overflow in Syn_filt_zero() original-Change-Id: Ie0c02fdfbe03988f9d3b20d10cd9fe4c002d1279 Fix integer overflow in CFac_CalcFacSignal() original-Change-Id: Id2d767c40066c591b51768e978eb8af3b803f0c5 Fix integer overflow in FDKaacEnc_FDKaacEnc_calcPeNoAH() original-Change-Id: Idcbd0f4a51ae2550ed106aa6f3d678d1f9724841 Fix integer overflow in sbrDecoder_calculateGainVec() original-Change-Id: I7081bcbe29c5cede9821b38d93de07c7add2d507 Fix integer overflow in CLpc_SynthesisLattice() original-Change-Id: I4a95ddc18de150102352d4a1845f06094764c881 Fix integer overflow in Pred_Lt4() original-Change-Id: I4dbd012b2de7d07c3e70a47b92e3bfae8dbc750a Fix integer overflow in FDKsbrEnc_InitSbrFastTransientDetector() original-Change-Id: I788cbec1a4a00f44c2f3a72ad7a4afa219807d04 Fix unsigned integer overflow in FDKaacEnc_WriteBitstream() original-Change-Id: I68fc75166e7d2cd5cd45b18dbe3d8c2a92f1822a Fix unsigned integer overflow in FDK_MetadataEnc_Init() original-Change-Id: Ie8d025f9bcdb2442c704bd196e61065c03c10af4 Fix overflow in pseudo random number generators original-Change-Id: I3e2551ee01356297ca14e3788436ede80bd5513c Fix unsigned integer overflow in sbrDecoder_Parse() original-Change-Id: I3f231b2f437e9c37db4d5b964164686710eee971 Fix unsigned integer overflow in longsub() original-Change-Id: I73c2bc50415cac26f1f5a29e125bbe75f9180a6e Fix unsigned integer overflow in CAacDecoder_DecodeFrame() original-Change-Id: Ifce2db4b1454b46fa5f887e9d383f1cc43b291e4 Fix overflow at CLpdChannelStream_Read() original-Change-Id: Idb9d822ce3a4272e4794b643644f5434e2d4bf3f Fix unsigned integer overflow in Hcr_State_BODY_SIGN_ESC__ESC_WORD() original-Change-Id: I1ccf77c0015684b85534c5eb97162740a870b71c Fix unsigned integer overflow in UsacConfig_Parse() original-Change-Id: Ie6d27f84b6ae7eef092ecbff4447941c77864d9f Fix unsigned integer overflow in aacDecoder_drcParse() original-Change-Id: I713f28e883eea3d70b6fa56a7b8f8c22bcf66ca0 Fix unsigned integer overflow in aacDecoder_drcReadCompression() original-Change-Id: Ia34dfeb88c4705c558bce34314f584965cafcf7a Fix unsigned integer overflow in CDataStreamElement_Read() original-Change-Id: Iae896cc1d11f0a893d21be6aa90bd3e60a2c25f0 Fix unsigned integer overflow in transportDec_AdjustEndOfAccessUnit() original-Change-Id: I64cf29a153ee784bb4a16fdc088baabebc0007dc Fix unsigned integer overflow in transportDec_GetAuBitsRemaining() original-Change-Id: I975b3420faa9c16a041874ba0db82e92035962e4 Fix unsigned integer overflow in extractExtendedData() original-Change-Id: I2a59eb09e2053cfb58dfb75fcecfad6b85a80a8f Fix signed integer overflow in CAacDecoder_ExtPayloadParse() original-Change-Id: I4ad5ca4e3b83b5d964f1c2f8c5e7b17c477c7929 Fix unsigned integer overflow in CAacDecoder_DecodeFrame() original-Change-Id: I29a39df77d45c52a0c9c5c83c1ba81f8d0f25090 Follow-up on: Fix integer overflow in CLpc_SynthesisLattice() original-Change-Id: I8fb194ffc073a3432a380845be71036a272d388f Fix signed integer overflow in _interpolateDrcGain() original-Change-Id: I879ec9ab14005069a7c47faf80e8bc6e03d22e60 Fix unsigned integer overflow in FDKreadBits() original-Change-Id: I1f47a6a8037ff70375aa8844947d5681bb4287ad Fix unsigned integer overflow in FDKbyteAlign() original-Change-Id: Id5f3a11a0c9e50fc6f76ed6c572dbd4e9f2af766 Fix unsigned integer overflow in FDK_get32() original-Change-Id: I9d33b8e97e3d38cbb80629cb859266ca0acdce96 Fix unsigned integer overflow in FDK_pushBack() original-Change-Id: Ic87f899bc8c6acf7a377a8ca7f3ba74c3a1e1c19 Fix unsigned integer overflow in FDK_pushForward() original-Change-Id: I3b754382f6776a34be1602e66694ede8e0b8effc Fix unsigned integer overflow in ReadPsData() original-Change-Id: I25361664ba8139e32bbbef2ca8c106a606ce9c37 Fix signed integer overflow in E_UTIL_residu() original-Change-Id: I8c3abd1f437ee869caa8fb5903ce7d3d641b6aad REVERT: Follow-up on: Integer overflow in CLpc_SynthesisLattice(). original-Change-Id: I3d340099acb0414795c8dfbe6362bc0a8f045f9b Follow-up on: Fix integer overflow in CLpc_SynthesisLattice() original-Change-Id: I4aedb8b3a187064e9f4d985175aa55bb99cc7590 Follow-up on: Fix unsigned integer overflow in aacDecoder_drcParse() original-Change-Id: I2aa2e13916213bf52a67e8b0518e7bf7e57fb37d Fix integer overflow in acelp original-Change-Id: Ie6390c136d84055f8b728aefbe4ebef6e029dc77 Fix unsigned integer overflow in aacDecoder_UpdateBitStreamCounters() original-Change-Id: I391ffd97ddb0b2c184cba76139bfb356a3b4d2e2 Adjust concealment default settings original-Change-Id: I6a95db935a327c47df348030bcceafcb29f54b21 Saturate estimatedStartPos original-Change-Id: I27be2085e0ae83ec9501409f65e003f6bcba1ab6 Negative shift exponent in _interpolateDrcGain() original-Change-Id: I18edb26b26d002aafd5e633d4914960f7a359c29 Negative shift exponent in calculateICC() original-Change-Id: I3dcd2ae98d2eb70ee0d59750863cbb2a6f4f8aba Too large shift exponent in FDK_put() original-Change-Id: Ib7d9aaa434d2d8de4a13b720ca0464b31ca9b671 Too large shift exponent in CalcInvLdData() original-Change-Id: I43e6e78d4cd12daeb1dcd5d82d1798bdc2550262 Member access within null pointer of type SBR_CHANNEL original-Change-Id: Idc5e4ea8997810376d2f36bbdf628923b135b097 Member access within null pointer of type CpePersistentData original-Change-Id: Ib6c91cb0d37882768e5baf63324e429589de0d9d Member access within null pointer FDKaacEnc_psyMain() original-Change-Id: I7729b7f4479970531d9dc823abff63ca52e01997 Member access within null pointer FDKaacEnc_GetPnsParam() original-Change-Id: I9aa3b9f3456ae2e0f7483dbd5b3dde95fc62da39 Member access within null pointer FDKsbrEnc_EnvEncodeFrame() original-Change-Id: I67936f90ea714e90b3e81bc0dd1472cc713eb23a Add HCR sanity check original-Change-Id: I6c1d9732ebcf6af12f50b7641400752f74be39f7 Fix memory issue for HBE edge case with 8:3 SBR original-Change-Id: I11ea58a61e69fbe8bf75034b640baee3011e63e9 Additional SBR parametrization sanity check for ELD original-Change-Id: Ie26026fbfe174c2c7b3691f6218b5ce63e322140 Add MPEG-D DRC channel layout check original-Change-Id: Iea70a74f171b227cce636a9eac4ba662777a2f72 Additional out-of-bounds checks in MPEG-D DRC original-Change-Id: Ife4a8c3452c6fde8a0a09e941154a39a769777d4 Change-Id: Ic63cb2f628720f54fe9b572b0cb528e2599c624e
This commit is contained in:
Fraunhofer IIS FDK
committed by
Jean-Michel Trivi
Jean-Michel Trivi
parent
6288a1e34c
commit
6cfabd3536
4
.clang-format
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4
.clang-format
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@ -0,0 +1,4 @@
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BasedOnStyle: Google
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SortIncludes: false
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# Do not reformat the Doxygen-style comments in the code
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CommentPragmas : "^ * \\\\"
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18
Android.bp
18
Android.bp
@ -11,16 +11,22 @@ cc_library_static {
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"libMpegTPEnc/src/*.cpp",
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"libMpegTPEnc/src/*.cpp",
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"libSBRdec/src/*.cpp",
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"libSBRdec/src/*.cpp",
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"libSBRenc/src/*.cpp",
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"libSBRenc/src/*.cpp",
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"libArithCoding/src/*.cpp",
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"libDRCdec/src/*.cpp",
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"libSACdec/src/*.cpp",
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"libSACenc/src/*.cpp",
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],
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],
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cflags: [
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cflags: [
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"-Werror",
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"-Werror",
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"-Wno-constant-conversion",
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"-Wno-unused-parameter",
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"-Wno-sequence-point",
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"-Wno-extra",
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"-Wno-#warnings",
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"-Wno-#warnings",
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"-Wno-constant-logical-operand",
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"-Wuninitialized",
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"-Wno-self-assign",
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"-Wno-self-assign",
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],
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],
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sanitize: {
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misc_undefined:["unsigned-integer-overflow", "signed-integer-overflow"],
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cfi: true,
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},
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export_include_dirs: [
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export_include_dirs: [
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"libAACdec/include",
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"libAACdec/include",
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"libAACenc/include",
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"libAACenc/include",
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@ -31,5 +37,9 @@ cc_library_static {
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"libMpegTPEnc/include",
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"libMpegTPEnc/include",
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"libSBRdec/include",
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"libSBRdec/include",
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"libSBRenc/include",
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"libSBRenc/include",
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"libArithCoding/include",
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"libDRCdec/include",
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"libSACdec/include",
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"libSACenc/include",
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],
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],
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}
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}
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104
NOTICE
104
NOTICE
@ -1,72 +1,84 @@
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Software License for The Fraunhofer FDK AAC Codec Library for Android
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Software License for The Fraunhofer FDK AAC Codec Library for Android
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© Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
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All rights reserved.
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Forschung e.V. All rights reserved.
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1. INTRODUCTION
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1. INTRODUCTION
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||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
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The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
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the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
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that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
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This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
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|
a wide variety of Android devices.
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||||||
|
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AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
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AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
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independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
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full-bandwidth communications codec by independent studies and is widely
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of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
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|
specifications.
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||||||
|
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||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
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||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
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are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
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||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
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|
information and documentation.
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|
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2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
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||||||
|
satisfy the following conditions:
|
||||||
|
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||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
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||||||
|
|
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You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
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You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
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|
charge copies of the complete source code of the FDK AAC Codec and your
|
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modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
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The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
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prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
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5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
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||||||
|
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Load Diff
173
libAACdec/src/FDK_delay.cpp
Normal file
173
libAACdec/src/FDK_delay.cpp
Normal file
@ -0,0 +1,173 @@
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|
/* -----------------------------------------------------------------------------
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||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
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||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
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|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Matthias Hildenbrand
|
||||||
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#include "FDK_delay.h"
|
||||||
|
|
||||||
|
#include "genericStds.h"
|
||||||
|
|
||||||
|
#define MAX_FRAME_LENGTH (1024)
|
||||||
|
|
||||||
|
INT FDK_Delay_Create(FDK_SignalDelay* data, const USHORT delay,
|
||||||
|
const UCHAR num_channels) {
|
||||||
|
FDK_ASSERT(data != NULL);
|
||||||
|
FDK_ASSERT(num_channels > 0);
|
||||||
|
|
||||||
|
if (delay > 0) {
|
||||||
|
data->delay_line =
|
||||||
|
(INT_PCM*)FDKcalloc(num_channels * delay, sizeof(INT_PCM));
|
||||||
|
if (data->delay_line == NULL) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
data->delay_line = NULL;
|
||||||
|
}
|
||||||
|
data->num_channels = num_channels;
|
||||||
|
data->delay = delay;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
void FDK_Delay_Apply(FDK_SignalDelay* data, FIXP_PCM* time_buffer,
|
||||||
|
const UINT frame_length, const UCHAR channel) {
|
||||||
|
FDK_ASSERT(data != NULL);
|
||||||
|
|
||||||
|
if (data->delay > 0) {
|
||||||
|
C_ALLOC_SCRATCH_START(tmp, FIXP_PCM, MAX_FRAME_LENGTH)
|
||||||
|
FDK_ASSERT(frame_length <= MAX_FRAME_LENGTH);
|
||||||
|
FDK_ASSERT(channel < data->num_channels);
|
||||||
|
FDK_ASSERT(time_buffer != NULL);
|
||||||
|
if (frame_length >= data->delay) {
|
||||||
|
FDKmemcpy(tmp, &time_buffer[frame_length - data->delay],
|
||||||
|
data->delay * sizeof(FIXP_PCM));
|
||||||
|
FDKmemmove(&time_buffer[data->delay], &time_buffer[0],
|
||||||
|
(frame_length - data->delay) * sizeof(FIXP_PCM));
|
||||||
|
FDKmemcpy(&time_buffer[0], &data->delay_line[channel * data->delay],
|
||||||
|
data->delay * sizeof(FIXP_PCM));
|
||||||
|
FDKmemcpy(&data->delay_line[channel * data->delay], tmp,
|
||||||
|
data->delay * sizeof(FIXP_PCM));
|
||||||
|
} else {
|
||||||
|
FDKmemcpy(tmp, &time_buffer[0], frame_length * sizeof(FIXP_PCM));
|
||||||
|
FDKmemcpy(&time_buffer[0], &data->delay_line[channel * data->delay],
|
||||||
|
frame_length * sizeof(FIXP_PCM));
|
||||||
|
FDKmemcpy(&data->delay_line[channel * data->delay],
|
||||||
|
&data->delay_line[channel * data->delay + frame_length],
|
||||||
|
(data->delay - frame_length) * sizeof(FIXP_PCM));
|
||||||
|
FDKmemcpy(&data->delay_line[channel * data->delay +
|
||||||
|
(data->delay - frame_length)],
|
||||||
|
tmp, frame_length * sizeof(FIXP_PCM));
|
||||||
|
}
|
||||||
|
C_ALLOC_SCRATCH_END(tmp, FIXP_PCM, MAX_FRAME_LENGTH)
|
||||||
|
}
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
void FDK_Delay_Destroy(FDK_SignalDelay* data) {
|
||||||
|
if (data->delay_line != NULL) {
|
||||||
|
FDKfree(data->delay_line);
|
||||||
|
}
|
||||||
|
data->delay_line = NULL;
|
||||||
|
data->delay = 0;
|
||||||
|
data->num_channels = 0;
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
152
libAACdec/src/FDK_delay.h
Normal file
152
libAACdec/src/FDK_delay.h
Normal file
@ -0,0 +1,152 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Matthias Hildenbrand
|
||||||
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef FDK_DELAY_H
|
||||||
|
#define FDK_DELAY_H
|
||||||
|
|
||||||
|
#include "aac_rom.h"
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Structure representing one delay element for multiple channels.
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
INT_PCM* delay_line; /*!< Pointer which stores allocated delay line. */
|
||||||
|
USHORT delay; /*!< Delay required in samples (per channel). */
|
||||||
|
UCHAR num_channels; /*!< Number of channels to delay. */
|
||||||
|
} FDK_SignalDelay;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Create delay element for multiple channels with fixed delay value.
|
||||||
|
*
|
||||||
|
* \param data Pointer delay element structure.
|
||||||
|
* \param delay Required delay value in samples per channel.
|
||||||
|
* \param num_channels Required number of channels.
|
||||||
|
*
|
||||||
|
* \return -1 on out of memory, else 0
|
||||||
|
*/
|
||||||
|
INT FDK_Delay_Create(FDK_SignalDelay* data, const USHORT delay,
|
||||||
|
const UCHAR num_channels);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Apply delay to one channel (non-interleaved storage assumed).
|
||||||
|
*
|
||||||
|
* \param data Pointer delay element structure.
|
||||||
|
* \param time_buffer Pointer to signal to delay.
|
||||||
|
* \param frame_length Frame length of input/output signal (needs to be >=
|
||||||
|
* delay).
|
||||||
|
* \param channel Index of current channel (0 <= channel < num_channels).
|
||||||
|
*
|
||||||
|
* \return void
|
||||||
|
*/
|
||||||
|
void FDK_Delay_Apply(FDK_SignalDelay* data, FIXP_PCM* time_buffer,
|
||||||
|
const UINT frame_length, const UCHAR channel);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Destroy delay element.
|
||||||
|
*
|
||||||
|
* \param data Pointer delay element structure.
|
||||||
|
*
|
||||||
|
* \return void
|
||||||
|
*/
|
||||||
|
void FDK_Delay_Destroy(FDK_SignalDelay* data);
|
||||||
|
|
||||||
|
#endif /* #ifndef FDK_DELAY_H */
|
||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,13 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
******************************************************************************/
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "aac_ram.h"
|
#include "aac_ram.h"
|
||||||
#include "aac_rom.h"
|
#include "aac_rom.h"
|
||||||
@ -93,10 +106,17 @@ amm-info@iis.fraunhofer.de
|
|||||||
#define WORKBUFFER1_TAG 0
|
#define WORKBUFFER1_TAG 0
|
||||||
#define WORKBUFFER2_TAG 1
|
#define WORKBUFFER2_TAG 1
|
||||||
|
|
||||||
/*! The structure AAC_DECODER_INSTANCE is the top level structure holding all decoder configurations,
|
#define WORKBUFFER3_TAG 4
|
||||||
handles and structs.
|
#define WORKBUFFER4_TAG 5
|
||||||
|
|
||||||
|
#define WORKBUFFER5_TAG 6
|
||||||
|
|
||||||
|
#define WORKBUFFER6_TAG 7
|
||||||
|
|
||||||
|
/*! The structure AAC_DECODER_INSTANCE is the top level structure holding all
|
||||||
|
decoder configurations, handles and structs.
|
||||||
*/
|
*/
|
||||||
C_ALLOC_MEM(AacDecoder, AAC_DECODER_INSTANCE, 1)
|
C_ALLOC_MEM(AacDecoder, struct AAC_DECODER_INSTANCE, 1)
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\name StaticAacData
|
\name StaticAacData
|
||||||
@ -105,21 +125,36 @@ C_ALLOC_MEM(AacDecoder, AAC_DECODER_INSTANCE, 1)
|
|||||||
*/
|
*/
|
||||||
/* @{ */
|
/* @{ */
|
||||||
|
|
||||||
/*! The structure CAacDecoderStaticChannelInfo contains the static sideinfo which is needed
|
/*! The structure CAacDecoderStaticChannelInfo contains the static sideinfo
|
||||||
for the decoding of one aac channel. <br>
|
which is needed for the decoding of one aac channel. <br> Dimension:
|
||||||
Dimension: #AacDecoderChannels */
|
#AacDecoderChannels */
|
||||||
C_ALLOC_MEM2(AacDecoderStaticChannelInfo, CAacDecoderStaticChannelInfo, 1, (8))
|
C_ALLOC_MEM2(AacDecoderStaticChannelInfo, CAacDecoderStaticChannelInfo, 1, (8))
|
||||||
|
|
||||||
/*! The structure CAacDecoderChannelInfo contains the dynamic sideinfo which is needed
|
/*! The structure CAacDecoderChannelInfo contains the dynamic sideinfo which is
|
||||||
for the decoding of one aac channel. <br>
|
needed for the decoding of one aac channel. <br> Dimension:
|
||||||
Dimension: #AacDecoderChannels */
|
#AacDecoderChannels */
|
||||||
C_AALLOC_MEM2(AacDecoderChannelInfo, CAacDecoderChannelInfo, 1, (8))
|
C_AALLOC_MEM2(AacDecoderChannelInfo, CAacDecoderChannelInfo, 1, (8))
|
||||||
|
|
||||||
/*! Overlap buffer */
|
/*! Overlap buffer */
|
||||||
C_ALLOC_MEM2(OverlapBuffer, FIXP_DBL, OverlapBufferSize, (8))
|
C_AALLOC_MEM2(OverlapBuffer, FIXP_DBL, OverlapBufferSize, (8))
|
||||||
|
|
||||||
C_ALLOC_MEM(DrcInfo, CDrcInfo, 1)
|
C_ALLOC_MEM(DrcInfo, CDrcInfo, 1)
|
||||||
|
|
||||||
|
/*! The structure CpePersistentData holds the persistent data shared by both
|
||||||
|
channels of a CPE. <br> It needs to be allocated for each CPE. <br>
|
||||||
|
Dimension: 1 */
|
||||||
|
C_ALLOC_MEM(CpePersistentData, CpePersistentData, 1)
|
||||||
|
|
||||||
|
/*! The structure CCplxPredictionData holds data for complex stereo prediction.
|
||||||
|
<br> Dimension: 1
|
||||||
|
*/
|
||||||
|
C_ALLOC_MEM(CplxPredictionData, CCplxPredictionData, 1)
|
||||||
|
|
||||||
|
/*! The buffer holds time samples for the crossfade in case of an USAC DASH IPF
|
||||||
|
config change Dimension: (8)
|
||||||
|
*/
|
||||||
|
C_ALLOC_MEM2(TimeDataFlush, INT_PCM, TIME_DATA_FLUSH_SIZE, (8))
|
||||||
|
|
||||||
/* @} */
|
/* @} */
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
@ -128,15 +163,23 @@ C_ALLOC_MEM(DrcInfo, CDrcInfo, 1)
|
|||||||
Dynamic memory areas, might be reused in other algorithm sections,
|
Dynamic memory areas, might be reused in other algorithm sections,
|
||||||
e.g. the sbr decoder
|
e.g. the sbr decoder
|
||||||
*/
|
*/
|
||||||
C_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL, ((8)*1024), SECT_DATA_L2, WORKBUFFER2_TAG)
|
|
||||||
|
|
||||||
|
/* Take into consideration to make use of the WorkBufferCore[3/4] for decoder
|
||||||
|
* configurations with more than 2 channels */
|
||||||
|
C_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL, ((8) * 1024), SECT_DATA_L2,
|
||||||
|
WORKBUFFER2_TAG)
|
||||||
|
|
||||||
C_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1, 1, SECT_DATA_L1, WORKBUFFER1_TAG)
|
C_ALLOC_MEM_OVERLAY(WorkBufferCore3, FIXP_DBL, WB_SECTION_SIZE, SECT_DATA_L2,
|
||||||
|
WORKBUFFER3_TAG)
|
||||||
/* @{ */
|
C_AALLOC_MEM(WorkBufferCore4, FIXP_DBL, WB_SECTION_SIZE)
|
||||||
|
C_ALLOC_MEM_OVERLAY(WorkBufferCore6, SCHAR,
|
||||||
|
fMax((INT)(sizeof(FIXP_DBL) * WB_SECTION_SIZE),
|
||||||
/* @} */
|
(INT)sizeof(CAacDecoderCommonData)),
|
||||||
|
SECT_DATA_L2, WORKBUFFER6_TAG)
|
||||||
|
|
||||||
|
C_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1, 1, SECT_DATA_L1,
|
||||||
|
WORKBUFFER1_TAG)
|
||||||
|
|
||||||
|
/* double buffer size needed for de-/interleaving */
|
||||||
|
C_ALLOC_MEM_OVERLAY(WorkBufferCore5, PCM_DEC, (8) * (1024 * 4) * 2,
|
||||||
|
SECT_DATA_EXTERN, WORKBUFFER5_TAG)
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description:
|
Description:
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef AAC_RAM_H
|
#ifndef AAC_RAM_H
|
||||||
#define AAC_RAM_H
|
#define AAC_RAM_H
|
||||||
@ -97,6 +109,8 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#include "channel.h"
|
#include "channel.h"
|
||||||
|
|
||||||
|
#include "ac_arith_coder.h"
|
||||||
|
|
||||||
#include "aacdec_hcr_types.h"
|
#include "aacdec_hcr_types.h"
|
||||||
#include "aacdec_hcr.h"
|
#include "aacdec_hcr.h"
|
||||||
|
|
||||||
@ -113,8 +127,21 @@ H_ALLOC_MEM(AacDecoderStaticChannelInfo, CAacDecoderStaticChannelInfo)
|
|||||||
H_ALLOC_MEM(AacDecoderChannelInfo, CAacDecoderChannelInfo)
|
H_ALLOC_MEM(AacDecoderChannelInfo, CAacDecoderChannelInfo)
|
||||||
H_ALLOC_MEM(OverlapBuffer, FIXP_DBL)
|
H_ALLOC_MEM(OverlapBuffer, FIXP_DBL)
|
||||||
|
|
||||||
|
H_ALLOC_MEM(CpePersistentData, CpePersistentData)
|
||||||
|
H_ALLOC_MEM(CplxPredictionData, CCplxPredictionData)
|
||||||
|
H_ALLOC_MEM(SpectralCoeffs, FIXP_DBL)
|
||||||
|
H_ALLOC_MEM(SpecScale, SHORT)
|
||||||
|
|
||||||
|
H_ALLOC_MEM(TimeDataFlush, INT_PCM)
|
||||||
|
|
||||||
H_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1)
|
H_ALLOC_MEM_OVERLAY(WorkBufferCore1, CWorkBufferCore1)
|
||||||
H_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL)
|
H_ALLOC_MEM_OVERLAY(WorkBufferCore2, FIXP_DBL)
|
||||||
|
|
||||||
|
H_ALLOC_MEM_OVERLAY(WorkBufferCore3, FIXP_DBL)
|
||||||
|
H_ALLOC_MEM(WorkBufferCore4, FIXP_DBL)
|
||||||
|
|
||||||
|
H_ALLOC_MEM_OVERLAY(WorkBufferCore5, PCM_DEC)
|
||||||
|
|
||||||
|
H_ALLOC_MEM_OVERLAY(WorkBufferCore6, SCHAR)
|
||||||
|
|
||||||
#endif /* #ifndef AAC_RAM_H */
|
#endif /* #ifndef AAC_RAM_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: Definition of constant tables
|
Description: Definition of constant tables
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef AAC_ROM_H
|
#ifndef AAC_ROM_H
|
||||||
#define AAC_ROM_H
|
#define AAC_ROM_H
|
||||||
@ -96,7 +108,20 @@ amm-info@iis.fraunhofer.de
|
|||||||
#include "aacdec_hcr_types.h"
|
#include "aacdec_hcr_types.h"
|
||||||
#include "aacdec_hcrs.h"
|
#include "aacdec_hcrs.h"
|
||||||
|
|
||||||
#define AAC_NF_NO_RANDOM_VAL 512 /*!< Size of random number array for noise floor */
|
#define PCM_DEC FIXP_DBL
|
||||||
|
#define MAXVAL_PCM_DEC MAXVAL_DBL
|
||||||
|
#define MINVAL_PCM_DEC MINVAL_DBL
|
||||||
|
#define FIXP_DBL2PCM_DEC(x) (x)
|
||||||
|
#define PCM_DEC2FIXP_DBL(x) (x)
|
||||||
|
#define PCM_DEC_BITS DFRACT_BITS
|
||||||
|
#define PCM_DEC2FX_PCM(x) FX_DBL2FX_PCM(x)
|
||||||
|
#define FX_PCM2PCM_DEC(x) FX_PCM2FX_DBL(x)
|
||||||
|
|
||||||
|
#define AACDEC_MAX_CH_CONF 14
|
||||||
|
#define AACDEC_CH_ELEMENTS_TAB_SIZE 7 /*!< Size of element tables */
|
||||||
|
|
||||||
|
#define AAC_NF_NO_RANDOM_VAL \
|
||||||
|
512 /*!< Size of random number array for noise floor */
|
||||||
|
|
||||||
#define INV_QUANT_TABLESIZE 256
|
#define INV_QUANT_TABLESIZE 256
|
||||||
|
|
||||||
@ -112,6 +137,11 @@ extern const SCHAR ExponentTable [4][14] ;
|
|||||||
#define WTS2 (-2)
|
#define WTS2 (-2)
|
||||||
extern const FIXP_WTB LowDelaySynthesis512[1536];
|
extern const FIXP_WTB LowDelaySynthesis512[1536];
|
||||||
extern const FIXP_WTB LowDelaySynthesis480[1440];
|
extern const FIXP_WTB LowDelaySynthesis480[1440];
|
||||||
|
extern const FIXP_WTB LowDelaySynthesis256[768];
|
||||||
|
extern const FIXP_WTB LowDelaySynthesis240[720];
|
||||||
|
extern const FIXP_WTB LowDelaySynthesis160[480];
|
||||||
|
extern const FIXP_WTB LowDelaySynthesis128[384];
|
||||||
|
extern const FIXP_WTB LowDelaySynthesis120[360];
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
const SHORT *sfbOffsetLong;
|
const SHORT *sfbOffsetLong;
|
||||||
@ -123,13 +153,9 @@ typedef struct {
|
|||||||
extern const SFB_INFO sfbOffsetTables[5][16];
|
extern const SFB_INFO sfbOffsetTables[5][16];
|
||||||
|
|
||||||
/* Huffman tables */
|
/* Huffman tables */
|
||||||
enum {
|
enum { HuffmanBits = 2, HuffmanEntries = (1 << HuffmanBits) };
|
||||||
HuffmanBits = 2,
|
|
||||||
HuffmanEntries = (1 << HuffmanBits)
|
|
||||||
};
|
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
const USHORT (*CodeBook)[HuffmanEntries];
|
const USHORT (*CodeBook)[HuffmanEntries];
|
||||||
UCHAR Dimension;
|
UCHAR Dimension;
|
||||||
UCHAR numBits;
|
UCHAR numBits;
|
||||||
@ -139,7 +165,6 @@ typedef struct
|
|||||||
extern const CodeBookDescription AACcodeBookDescriptionTable[13];
|
extern const CodeBookDescription AACcodeBookDescriptionTable[13];
|
||||||
extern const CodeBookDescription AACcodeBookDescriptionSCL;
|
extern const CodeBookDescription AACcodeBookDescriptionSCL;
|
||||||
|
|
||||||
|
|
||||||
extern const STATEFUNC aStateConstant2State[];
|
extern const STATEFUNC aStateConstant2State[];
|
||||||
|
|
||||||
extern const SCHAR aCodebook2StartInt[];
|
extern const SCHAR aCodebook2StartInt[];
|
||||||
@ -161,7 +186,6 @@ extern const USHORT aLargestAbsoluteValue[];
|
|||||||
extern const UINT aHuffTreeRvlcEscape[];
|
extern const UINT aHuffTreeRvlcEscape[];
|
||||||
extern const UINT aHuffTreeRvlCodewds[];
|
extern const UINT aHuffTreeRvlCodewds[];
|
||||||
|
|
||||||
|
|
||||||
extern const UCHAR tns_max_bands_tbl[13][2];
|
extern const UCHAR tns_max_bands_tbl[13][2];
|
||||||
|
|
||||||
extern const UCHAR tns_max_bands_tbl_480[13];
|
extern const UCHAR tns_max_bands_tbl_480[13];
|
||||||
@ -172,7 +196,10 @@ extern const UCHAR tns_max_bands_tbl_512[13];
|
|||||||
extern const FIXP_TCC FDKaacDec_tnsCoeff3[8];
|
extern const FIXP_TCC FDKaacDec_tnsCoeff3[8];
|
||||||
extern const FIXP_TCC FDKaacDec_tnsCoeff4[16];
|
extern const FIXP_TCC FDKaacDec_tnsCoeff4[16];
|
||||||
|
|
||||||
extern const USHORT randomSign[AAC_NF_NO_RANDOM_VAL/16];
|
extern const UCHAR FDKaacDec_tnsCoeff3_gain_ld[];
|
||||||
|
extern const UCHAR FDKaacDec_tnsCoeff4_gain_ld[];
|
||||||
|
|
||||||
|
extern const USHORT AacDec_randomSign[AAC_NF_NO_RANDOM_VAL / 16];
|
||||||
|
|
||||||
extern const FIXP_DBL pow2_div24minus1[47];
|
extern const FIXP_DBL pow2_div24minus1[47];
|
||||||
extern const int offsetTab[2][16];
|
extern const int offsetTab[2][16];
|
||||||
@ -183,6 +210,28 @@ extern const UCHAR channelMappingTablePassthrough[15][8];
|
|||||||
extern const UCHAR channelMappingTableWAV[15][8];
|
extern const UCHAR channelMappingTableWAV[15][8];
|
||||||
|
|
||||||
/* Lookup tables for elements in ER bitstream */
|
/* Lookup tables for elements in ER bitstream */
|
||||||
extern const MP4_ELEMENT_ID elementsTab[15][7];
|
extern const MP4_ELEMENT_ID elementsTab[AACDEC_MAX_CH_CONF]
|
||||||
|
[AACDEC_CH_ELEMENTS_TAB_SIZE];
|
||||||
|
|
||||||
|
#define SF_FNA_COEFFS \
|
||||||
|
1 /* Compile-time prescaler for MDST-filter coefficients. */
|
||||||
|
/* SF_FNA_COEFFS > 0 should only be considered for FIXP_DBL-coefficients */
|
||||||
|
/* (i.e. if CPLX_PRED_FILTER_16BIT is not defined). */
|
||||||
|
/* With FIXP_DBL loss of precision is possible for SF_FNA_COEFFS > 11. */
|
||||||
|
|
||||||
|
#ifdef CPLX_PRED_FILTER_16BIT
|
||||||
|
#define FIXP_FILT FIXP_SGL
|
||||||
|
#define FILT(a) ((FL2FXCONST_SGL(a)) >> SF_FNA_COEFFS)
|
||||||
|
#else
|
||||||
|
#define FIXP_FILT FIXP_DBL
|
||||||
|
#define FILT(a) ((FL2FXCONST_DBL(a)) >> SF_FNA_COEFFS)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
extern const FIXP_FILT mdst_filt_coef_curr[20][3]; /* MDST-filter coefficient
|
||||||
|
tables used for current
|
||||||
|
window */
|
||||||
|
extern const FIXP_FILT mdst_filt_coef_prev[6][4]; /* MDST-filter coefficient
|
||||||
|
tables used for previous
|
||||||
|
window */
|
||||||
|
|
||||||
#endif /* #ifndef AAC_ROM_H */
|
#endif /* #ifndef AAC_ROM_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,111 +90,103 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Christian Griebel
|
Author(s): Christian Griebel
|
||||||
|
|
||||||
Description: Dynamic range control (DRC) decoder tool for AAC
|
Description: Dynamic range control (DRC) decoder tool for AAC
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef AACDEC_DRC_H
|
#ifndef AACDEC_DRC_H
|
||||||
#define AACDEC_DRC_H
|
#define AACDEC_DRC_H
|
||||||
|
|
||||||
#include "tp_data.h" /* for program config element support */
|
#include "tp_data.h" /* for program config element support */
|
||||||
|
|
||||||
|
|
||||||
#include "aacdec_drc_types.h"
|
#include "aacdec_drc_types.h"
|
||||||
#include "channel.h"
|
#include "channel.h"
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
|
|
||||||
#define AACDEC_DRC_DFLT_EXPIRY_FRAMES ( 50 ) /* Default DRC data expiry time in AAC frames */
|
#define AACDEC_DRC_DFLT_EXPIRY_FRAMES \
|
||||||
|
(0) /* Default DRC data expiry time in AAC frames */
|
||||||
|
|
||||||
|
/* #define AACDEC_DRC_IGNORE_FRAMES_WITH_MULTIPLE_CH_THREADS */ /* The name says
|
||||||
|
it all. */
|
||||||
|
/* #define AACDEC_DRC_DEBUG */
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief DRC module setting parameters
|
* \brief DRC module setting parameters
|
||||||
*/
|
*/
|
||||||
typedef enum
|
typedef enum {
|
||||||
{
|
|
||||||
DRC_CUT_SCALE = 0,
|
DRC_CUT_SCALE = 0,
|
||||||
DRC_BOOST_SCALE,
|
DRC_BOOST_SCALE,
|
||||||
TARGET_REF_LEVEL,
|
TARGET_REF_LEVEL,
|
||||||
DRC_BS_DELAY,
|
DRC_BS_DELAY,
|
||||||
DRC_DATA_EXPIRY_FRAME,
|
DRC_DATA_EXPIRY_FRAME,
|
||||||
APPLY_NORMALIZATION,
|
APPLY_NORMALIZATION,
|
||||||
APPLY_HEAVY_COMPRESSION
|
APPLY_HEAVY_COMPRESSION,
|
||||||
|
DEFAULT_PRESENTATION_MODE,
|
||||||
|
ENCODER_TARGET_LEVEL,
|
||||||
|
MAX_OUTPUT_CHANNELS,
|
||||||
|
UNIDRC_PRECEDENCE
|
||||||
} AACDEC_DRC_PARAM;
|
} AACDEC_DRC_PARAM;
|
||||||
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief DRC module interface functions
|
* \brief DRC module interface functions
|
||||||
*/
|
*/
|
||||||
void aacDecoder_drcInit (
|
void aacDecoder_drcInit(HANDLE_AAC_DRC self);
|
||||||
HANDLE_AAC_DRC self );
|
|
||||||
|
|
||||||
void aacDecoder_drcInitChannelData (
|
void aacDecoder_drcInitChannelData(CDrcChannelData *pDrcChannel);
|
||||||
CDrcChannelData *pDrcChannel );
|
|
||||||
|
|
||||||
AAC_DECODER_ERROR aacDecoder_drcSetParam (
|
AAC_DECODER_ERROR aacDecoder_drcSetParam(HANDLE_AAC_DRC self,
|
||||||
HANDLE_AAC_DRC self,
|
AACDEC_DRC_PARAM param, INT value);
|
||||||
AACDEC_DRC_PARAM param,
|
|
||||||
INT value );
|
|
||||||
|
|
||||||
int aacDecoder_drcMarkPayload (
|
int aacDecoder_drcMarkPayload(HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs,
|
||||||
HANDLE_AAC_DRC self,
|
|
||||||
HANDLE_FDK_BITSTREAM hBs,
|
|
||||||
AACDEC_DRC_PAYLOAD_TYPE type);
|
AACDEC_DRC_PAYLOAD_TYPE type);
|
||||||
|
|
||||||
int aacDecoder_drcProlog(
|
int aacDecoder_drcProlog(
|
||||||
HANDLE_AAC_DRC self,
|
HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs,
|
||||||
HANDLE_FDK_BITSTREAM hBs,
|
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
||||||
UCHAR pceInstanceTag,
|
UCHAR pceInstanceTag, UCHAR channelMapping[], int validChannels);
|
||||||
UCHAR channelMapping[],
|
|
||||||
int numChannels );
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Apply DRC. If SBR is present, DRC data is handed over to the SBR decoder.
|
* \brief Apply DRC. If SBR is present, DRC data is handed over to the SBR
|
||||||
|
* decoder.
|
||||||
* \param self AAC decoder instance
|
* \param self AAC decoder instance
|
||||||
* \param pSbrDec pointer to SBR decoder instance
|
* \param pSbrDec pointer to SBR decoder instance
|
||||||
* \param pAacDecoderChannelInfo AAC decoder channel instance to be processed
|
* \param pAacDecoderChannelInfo AAC decoder channel instance to be processed
|
||||||
* \param pDrcDat DRC channel data
|
* \param pDrcDat DRC channel data
|
||||||
* \param extGain Pointer to a FIXP_DBL where a externally applyable gain will be stored into (independently on whether it will be apply internally or not).
|
* \param extGain Pointer to a FIXP_DBL where a externally applyable gain will
|
||||||
* At function call the buffer must hold the scale (0 >= scale < DFRACT_BITS) to be applied on the gain value.
|
* be stored into (independently on whether it will be apply internally or not).
|
||||||
|
* At function call the buffer must hold the scale (0 >= scale <
|
||||||
|
* DFRACT_BITS) to be applied on the gain value.
|
||||||
* \param ch channel index
|
* \param ch channel index
|
||||||
* \param aacFrameSize AAC frame size
|
* \param aacFrameSize AAC frame size
|
||||||
* \param bSbrPresent flag indicating that SBR is present, in which case DRC is handed over to the SBR instance pSbrDec
|
* \param bSbrPresent flag indicating that SBR is present, in which case DRC is
|
||||||
|
* handed over to the SBR instance pSbrDec
|
||||||
*/
|
*/
|
||||||
void aacDecoder_drcApply (
|
void aacDecoder_drcApply(HANDLE_AAC_DRC self, void *pSbrDec,
|
||||||
HANDLE_AAC_DRC self,
|
|
||||||
void *pSbrDec,
|
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CDrcChannelData *pDrcDat,
|
CDrcChannelData *pDrcDat, FIXP_DBL *extGain, int ch,
|
||||||
FIXP_DBL *extGain,
|
int aacFrameSize, int bSbrPresent);
|
||||||
int ch,
|
|
||||||
int aacFrameSize,
|
|
||||||
int bSbrPresent );
|
|
||||||
|
|
||||||
int aacDecoder_drcEpilog(
|
int aacDecoder_drcEpilog(
|
||||||
HANDLE_AAC_DRC self,
|
HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs,
|
||||||
HANDLE_FDK_BITSTREAM hBs,
|
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
||||||
UCHAR pceInstanceTag,
|
UCHAR pceInstanceTag, UCHAR channelMapping[], int validChannels);
|
||||||
UCHAR channelMapping[],
|
|
||||||
int validChannels );
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Get metadata information found in bitstream.
|
* \brief Get metadata information found in bitstream.
|
||||||
* \param self DRC module instance handle.
|
* \param self DRC module instance handle.
|
||||||
* \param pPresMode Pointer to field where the presentation mode will be written to.
|
* \param pPresMode Pointer to field where the presentation mode will be written
|
||||||
* \param pProgRefLevel Pointer to field where the program reference level will be written to.
|
* to.
|
||||||
|
* \param pProgRefLevel Pointer to field where the program reference level will
|
||||||
|
* be written to.
|
||||||
* \return Nothing.
|
* \return Nothing.
|
||||||
*/
|
*/
|
||||||
void aacDecoder_drcGetInfo (
|
void aacDecoder_drcGetInfo(HANDLE_AAC_DRC self, SCHAR *pPresMode,
|
||||||
HANDLE_AAC_DRC self,
|
|
||||||
SCHAR *pPresMode,
|
|
||||||
SCHAR *pProgRefLevel);
|
SCHAR *pProgRefLevel);
|
||||||
|
|
||||||
|
|
||||||
#endif /* AACDEC_DRC_H */
|
#endif /* AACDEC_DRC_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,38 +90,49 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Christian Griebel
|
Author(s): Christian Griebel
|
||||||
|
|
||||||
Description: Dynamic range control (DRC) global data types
|
Description: Dynamic range control (DRC) global data types
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef AACDEC_DRC_TYPES_H
|
#ifndef AACDEC_DRC_TYPES_H
|
||||||
#define AACDEC_DRC_TYPES_H
|
#define AACDEC_DRC_TYPES_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#define MAX_DRC_THREADS ( 3 ) /* Heavy compression value is handled just like MPEG DRC data */
|
#define MAX_DRC_THREADS \
|
||||||
|
((8) + 1) /* Heavy compression value is handled just like MPEG DRC data */
|
||||||
#define MAX_DRC_BANDS (16) /* 2^LEN_DRC_BAND_INCR (LEN_DRC_BAND_INCR = 4) */
|
#define MAX_DRC_BANDS (16) /* 2^LEN_DRC_BAND_INCR (LEN_DRC_BAND_INCR = 4) */
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief DRC module global data types
|
* \brief DRC module global data types
|
||||||
*/
|
*/
|
||||||
typedef enum
|
typedef enum {
|
||||||
{
|
|
||||||
UNKNOWN_PAYLOAD = 0,
|
UNKNOWN_PAYLOAD = 0,
|
||||||
MPEG_DRC_EXT_DATA = 1,
|
MPEG_DRC_EXT_DATA = 1,
|
||||||
DVB_DRC_ANC_DATA = 2
|
DVB_DRC_ANC_DATA = 2
|
||||||
|
|
||||||
} AACDEC_DRC_PAYLOAD_TYPE;
|
} AACDEC_DRC_PAYLOAD_TYPE;
|
||||||
|
|
||||||
typedef struct
|
/**
|
||||||
{
|
* \brief Options for parameter handling / presentation mode
|
||||||
|
*/
|
||||||
|
typedef enum {
|
||||||
|
DISABLED_PARAMETER_HANDLING = -1, /*!< DRC parameter handling disabled, all
|
||||||
|
parameters are applied as requested. */
|
||||||
|
ENABLED_PARAMETER_HANDLING =
|
||||||
|
0, /*!< Apply changes to requested DRC parameters to prevent clipping */
|
||||||
|
DRC_PRESENTATION_MODE_1 = 1, /*!< DRC Presentation mode 1*/
|
||||||
|
DRC_PRESENTATION_MODE_2 = 2 /*!< DRC Presentation mode 2*/
|
||||||
|
|
||||||
|
} AACDEC_DRC_PARAMETER_HANDLING;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
UINT expiryCount;
|
UINT expiryCount;
|
||||||
UINT numBands;
|
UINT numBands;
|
||||||
USHORT bandTop[MAX_DRC_BANDS];
|
USHORT bandTop[MAX_DRC_BANDS];
|
||||||
@ -120,55 +142,79 @@ typedef struct
|
|||||||
|
|
||||||
} CDrcChannelData;
|
} CDrcChannelData;
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
UINT excludedChnsMask;
|
UINT excludedChnsMask;
|
||||||
SCHAR progRefLevel;
|
SCHAR progRefLevel;
|
||||||
SCHAR presMode; /* Presentation mode: 0 (not indicated), 1, 2, and 3 (reserved). */
|
SCHAR presMode; /* Presentation mode: 0 (not indicated), 1, 2, and 3
|
||||||
|
(reserved). */
|
||||||
SCHAR pceInstanceTag;
|
SCHAR pceInstanceTag;
|
||||||
|
|
||||||
CDrcChannelData channelData;
|
CDrcChannelData channelData;
|
||||||
|
|
||||||
} CDrcPayload;
|
} CDrcPayload;
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
/* DRC parameters: Latest user requests */
|
||||||
FIXP_DBL cut; /* The attenuation scale factor currently used. */
|
FIXP_DBL usrCut;
|
||||||
FIXP_DBL usrCut; /* The latest attenuation scale factor set by user. */
|
FIXP_DBL usrBoost;
|
||||||
FIXP_DBL boost; /* The boost scale factor currently used. */
|
UCHAR usrApplyHeavyCompression;
|
||||||
FIXP_DBL usrBoost; /* The latest boost scale factor set by user. */
|
|
||||||
|
/* DRC parameters: Currently used, possibly changed by
|
||||||
|
* aacDecoder_drcParameterHandling */
|
||||||
|
FIXP_DBL cut; /* attenuation scale factor */
|
||||||
|
FIXP_DBL boost; /* boost scale factor */
|
||||||
|
SCHAR targetRefLevel; /* target reference level for loudness normalization */
|
||||||
|
UCHAR applyHeavyCompression; /* heavy compression (DVB) flag */
|
||||||
|
|
||||||
UINT expiryFrame;
|
UINT expiryFrame;
|
||||||
SCHAR targetRefLevel;
|
|
||||||
UCHAR bsDelayEnable;
|
UCHAR bsDelayEnable;
|
||||||
UCHAR applyDigitalNorm;
|
UCHAR applyDigitalNorm;
|
||||||
UCHAR applyHeavyCompression;
|
|
||||||
|
AACDEC_DRC_PARAMETER_HANDLING defaultPresentationMode;
|
||||||
|
UCHAR encoderTargetLevel;
|
||||||
|
|
||||||
} CDrcParams;
|
} CDrcParams;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
typedef struct
|
CDrcParams
|
||||||
{
|
params; /* Module parameters that can be set by user (via SetParam API
|
||||||
CDrcParams params; /* Module parameters that can be set by user (via SetParam API function) */
|
function) */
|
||||||
|
|
||||||
UCHAR enable; /* Switch that controls dynamic range processing */
|
UCHAR enable; /* Switch that controls dynamic range processing */
|
||||||
UCHAR digitalNorm; /* Switch to en-/disable reference level normalization in digital domain */
|
UCHAR digitalNorm; /* Switch to en-/disable reference level normalization in
|
||||||
|
digital domain */
|
||||||
|
|
||||||
USHORT numPayloads; /* The number of DRC data payload elements found within frame */
|
UCHAR update; /* Flag indicating the change of a user or bitstream parameter
|
||||||
USHORT numThreads; /* The number of DRC data threads extracted from the found payload elements */
|
which affects aacDecoder_drcParameterHandling */
|
||||||
|
INT numOutChannels; /* Number of output channels */
|
||||||
|
INT prevAacNumChannels; /* Previous number of channels of aac bitstream, used
|
||||||
|
for update flag */
|
||||||
|
|
||||||
|
USHORT numPayloads; /* The number of DRC data payload elements found within
|
||||||
|
frame */
|
||||||
|
USHORT
|
||||||
|
numThreads; /* The number of DRC data threads extracted from the found
|
||||||
|
payload elements */
|
||||||
SCHAR progRefLevel; /* Program reference level for all channels */
|
SCHAR progRefLevel; /* Program reference level for all channels */
|
||||||
UCHAR progRefLevelPresent; /* Program reference level found in bitstream */
|
UCHAR progRefLevelPresent; /* Program reference level found in bitstream */
|
||||||
|
|
||||||
UINT prlExpiryCount; /* Counter that can be used to monitor the life time of the program reference level. */
|
UINT prlExpiryCount; /* Counter that can be used to monitor the life time of
|
||||||
|
the program reference level. */
|
||||||
|
|
||||||
SCHAR presMode; /* Presentation mode as defined in ETSI TS 101 154 */
|
SCHAR presMode; /* Presentation mode as defined in ETSI TS 101 154 */
|
||||||
UCHAR dvbAncDataAvailable; /* Flag that indicates whether DVB ancillary data is present or not */
|
UCHAR dvbAncDataAvailable; /* Flag that indicates whether DVB ancillary data
|
||||||
UINT dvbAncDataPosition; /* Used to store the DVB ancillary data payload position in the bitstream (only one per frame) */
|
is present or not */
|
||||||
UINT drcPayloadPosition[MAX_DRC_THREADS]; /* Used to store the DRC payload positions in the bitstream */
|
UINT dvbAncDataPosition; /* Used to store the DVB ancillary data payload
|
||||||
|
position in the bitstream (only one per frame) */
|
||||||
|
UINT drcPayloadPosition[MAX_DRC_THREADS]; /* Used to store the DRC payload
|
||||||
|
positions in the bitstream */
|
||||||
|
|
||||||
|
UCHAR
|
||||||
|
uniDrcPrecedence; /* Flag for signalling that uniDrc is active and takes
|
||||||
|
precedence over legacy DRC */
|
||||||
|
|
||||||
} CDrcInfo;
|
} CDrcInfo;
|
||||||
|
|
||||||
typedef CDrcInfo *HANDLE_AAC_DRC;
|
typedef CDrcInfo *HANDLE_AAC_DRC;
|
||||||
|
|
||||||
#endif /* AACDEC_DRC_TYPES_H */
|
#endif /* AACDEC_DRC_TYPES_H */
|
||||||
|
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,48 +90,39 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder ***************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Robert Weidner (DSP Solutions)
|
Author(s): Robert Weidner (DSP Solutions)
|
||||||
|
|
||||||
Description: HCR Decoder: Interface function declaration; common defines
|
Description: HCR Decoder: Interface function declaration; common defines
|
||||||
and structures; defines for switching error-generator,
|
and structures; defines for switching error-generator,
|
||||||
-detector, and -concealment
|
-detector, and -concealment
|
||||||
|
|
||||||
*******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef _AACDEC_HCR_H_
|
#ifndef AACDEC_HCR_H
|
||||||
#define _AACDEC_HCR_H_
|
#define AACDEC_HCR_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "channelinfo.h"
|
#include "channelinfo.h"
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
|
|
||||||
void HcrInitRom (H_HCR_INFO hHcr);
|
UINT HcrInit(H_HCR_INFO pHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
UINT HcrInit(H_HCR_INFO pHcr,
|
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo,
|
||||||
HANDLE_FDK_BITSTREAM bs);
|
HANDLE_FDK_BITSTREAM bs);
|
||||||
UINT HcrDecoder (H_HCR_INFO hHcr,
|
UINT HcrDecoder(H_HCR_INFO hHcr, CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo,
|
||||||
HANDLE_FDK_BITSTREAM bs);
|
HANDLE_FDK_BITSTREAM bs);
|
||||||
void CarryBitToBranchValue(
|
void CarryBitToBranchValue(UCHAR carryBit, UINT treeNode, UINT *branchValue,
|
||||||
UCHAR carryBit,
|
UINT *branchNode);
|
||||||
UINT treeNode,
|
|
||||||
UINT *branchValue,
|
|
||||||
UINT *branchNode
|
|
||||||
);
|
|
||||||
|
|
||||||
void CHcr_Read(HANDLE_FDK_BITSTREAM bs,
|
void CHcr_Read(HANDLE_FDK_BITSTREAM bs,
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo);
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
const MP4_ELEMENT_ID globalHcrType);
|
||||||
void HcrMuteErroneousLines(H_HCR_INFO hHcr);
|
void HcrMuteErroneousLines(H_HCR_INFO hHcr);
|
||||||
|
|
||||||
void setHcrType(H_HCR_INFO hHcr, MP4_ELEMENT_ID type);
|
void setHcrType(H_HCR_INFO hHcr, MP4_ELEMENT_ID type);
|
||||||
INT getHcrType(H_HCR_INFO hHcr);
|
INT getHcrType(H_HCR_INFO hHcr);
|
||||||
|
|
||||||
|
#endif /* AACDEC_HCR_H */
|
||||||
|
|
||||||
#endif /* _AACDEC_HCR_H_ */
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,39 +90,38 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder ***************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Robert Weidner (DSP Solutions)
|
Author(s): Robert Weidner (DSP Solutions)
|
||||||
|
|
||||||
Description: HCR Decoder: Bitstream reading
|
Description: HCR Decoder: Bitstream reading
|
||||||
|
|
||||||
*******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "aacdec_hcr_bit.h"
|
#include "aacdec_hcr_bit.h"
|
||||||
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
description: This function toggles the read direction.
|
description: This function toggles the read direction.
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
input: current read direction
|
input: current read direction
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: new read direction
|
return: new read direction
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
UCHAR ToggleReadDirection(UCHAR readDirection)
|
*/
|
||||||
{
|
UCHAR ToggleReadDirection(UCHAR readDirection) {
|
||||||
if (readDirection == FROM_LEFT_TO_RIGHT) {
|
if (readDirection == FROM_LEFT_TO_RIGHT) {
|
||||||
return FROM_RIGHT_TO_LEFT;
|
return FROM_RIGHT_TO_LEFT;
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
return FROM_LEFT_TO_RIGHT;
|
return FROM_LEFT_TO_RIGHT;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
description: This function returns a bit from the bitstream according to read direction.
|
description: This function returns a bit from the bitstream according to
|
||||||
It is called very often, therefore it makes sense to inline it (runtime).
|
read direction. It is called very often, therefore it makes sense to inline it
|
||||||
|
(runtime).
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
input: - handle to FDK bitstream
|
input: - handle to FDK bitstream
|
||||||
- reference value marking start of bitfield
|
- reference value marking start of bitfield
|
||||||
@ -120,12 +130,10 @@ UCHAR ToggleReadDirection(UCHAR readDirection)
|
|||||||
- readDirection
|
- readDirection
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: - bit from bitstream
|
return: - bit from bitstream
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs,
|
*/
|
||||||
USHORT *pLeftStartOfSegment,
|
UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs, INT *pLeftStartOfSegment,
|
||||||
USHORT *pRightStartOfSegment,
|
INT *pRightStartOfSegment, UCHAR readDirection) {
|
||||||
UCHAR readDirection)
|
|
||||||
{
|
|
||||||
UINT bit;
|
UINT bit;
|
||||||
INT readBitOffset;
|
INT readBitOffset;
|
||||||
|
|
||||||
@ -138,8 +146,7 @@ UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs,
|
|||||||
bit = FDKreadBits(bs, 1);
|
bit = FDKreadBits(bs, 1);
|
||||||
|
|
||||||
*pLeftStartOfSegment += 1;
|
*pLeftStartOfSegment += 1;
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
readBitOffset = *pRightStartOfSegment - FDKgetBitCnt(bs);
|
readBitOffset = *pRightStartOfSegment - FDKgetBitCnt(bs);
|
||||||
if (readBitOffset) {
|
if (readBitOffset) {
|
||||||
FDKpushBiDirectional(bs, readBitOffset);
|
FDKpushBiDirectional(bs, readBitOffset);
|
||||||
@ -152,14 +159,5 @@ UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs,
|
|||||||
*pRightStartOfSegment -= 1;
|
*pRightStartOfSegment -= 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
#if ERROR_GENERATOR_BIT_STREAM_HCR
|
|
||||||
static int a;
|
|
||||||
if ((++a % MODULO_DIVISOR_HCR) == 0) {
|
|
||||||
bit = (bit == 0) ? 1 : 0;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
return (bit);
|
return (bit);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,28 +90,24 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder ***************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Robert Weidner (DSP Solutions)
|
Author(s): Robert Weidner (DSP Solutions)
|
||||||
|
|
||||||
Description: HCR Decoder: Bitstream reading prototypes
|
Description: HCR Decoder: Bitstream reading prototypes
|
||||||
|
|
||||||
*******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef _AACDEC_HCR_BIT_H_
|
#ifndef AACDEC_HCR_BIT_H
|
||||||
#define _AACDEC_HCR_BIT_H_
|
#define AACDEC_HCR_BIT_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "aacdec_hcr.h"
|
#include "aacdec_hcr.h"
|
||||||
|
|
||||||
UCHAR ToggleReadDirection(UCHAR readDirection);
|
UCHAR ToggleReadDirection(UCHAR readDirection);
|
||||||
|
|
||||||
UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs,
|
UINT HcrGetABitFromBitstream(HANDLE_FDK_BITSTREAM bs, INT *pLeftStartOfSegment,
|
||||||
USHORT *pLeftStartOfSegment,
|
INT *pRightStartOfSegment, UCHAR readDirection);
|
||||||
USHORT *pRightStartOfSegment,
|
|
||||||
UCHAR readDirection);
|
|
||||||
|
|
||||||
|
#endif /* AACDEC_HCR_BIT_H */
|
||||||
#endif /* _AACDEC_HCR_BIT_H_ */
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,20 +90,19 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder ***************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Robert Weidner (DSP Solutions)
|
Author(s): Robert Weidner (DSP Solutions)
|
||||||
|
|
||||||
Description: HCR Decoder: Common defines and structures; defines for
|
Description: HCR Decoder: Common defines and structures; defines for
|
||||||
switching error-generator, -detector, and -concealment;
|
switching error-generator, -detector, and -concealment;
|
||||||
|
|
||||||
*******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef _AACDEC_HCR_TYPES_H_
|
#ifndef AACDEC_HCR_TYPES_H
|
||||||
#define _AACDEC_HCR_TYPES_H_
|
#define AACDEC_HCR_TYPES_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
#include "overlapadd.h"
|
#include "overlapadd.h"
|
||||||
@ -106,12 +116,13 @@ amm-info@iis.fraunhofer.de
|
|||||||
/* ------------------------------------------------ */
|
/* ------------------------------------------------ */
|
||||||
/* ----------- basic HCR configuration ------------ */
|
/* ----------- basic HCR configuration ------------ */
|
||||||
|
|
||||||
|
#define MAX_SFB_HCR \
|
||||||
#define MAX_SFB_HCR (((1024/8) / LINES_PER_UNIT) * 8) /* (8 * 16) is not enough because sfbs are split in units for blocktype short */
|
(((1024 / 8) / LINES_PER_UNIT) * 8) /* (8 * 16) is not enough because sfbs \
|
||||||
|
are split in units for blocktype \
|
||||||
|
short */
|
||||||
#define NUMBER_OF_UNIT_GROUPS (LINES_PER_UNIT * 8)
|
#define NUMBER_OF_UNIT_GROUPS (LINES_PER_UNIT * 8)
|
||||||
#define LINES_PER_UNIT_GROUP (1024 / NUMBER_OF_UNIT_GROUPS) /* 15 16 30 32 */
|
#define LINES_PER_UNIT_GROUP (1024 / NUMBER_OF_UNIT_GROUPS) /* 15 16 30 32 */
|
||||||
|
|
||||||
|
|
||||||
/* ------------------------------------------------ */
|
/* ------------------------------------------------ */
|
||||||
/* ------------------------------------------------ */
|
/* ------------------------------------------------ */
|
||||||
/* ------------------------------------------------ */
|
/* ------------------------------------------------ */
|
||||||
@ -128,7 +139,9 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#define MAX_CB 32 /* last used CB is cb #31 when VCB11 is used */
|
#define MAX_CB 32 /* last used CB is cb #31 when VCB11 is used */
|
||||||
|
|
||||||
#define MAX_CB_CHECK 32 /* support for VCB11 available -- is more general, could therefore used in both cases */
|
#define MAX_CB_CHECK \
|
||||||
|
32 /* support for VCB11 available -- is more general, could therefore used \
|
||||||
|
in both cases */
|
||||||
|
|
||||||
#define NUMBER_OF_BIT_IN_WORD 32
|
#define NUMBER_OF_BIT_IN_WORD 32
|
||||||
|
|
||||||
@ -143,7 +156,8 @@ amm-info@iis.fraunhofer.de
|
|||||||
#define LEN_OF_LONGEST_CW_TOP_LENGTH 49
|
#define LEN_OF_LONGEST_CW_TOP_LENGTH 49
|
||||||
|
|
||||||
/* qsc's of high level */
|
/* qsc's of high level */
|
||||||
#define Q_VALUE_INVALID 8192 /* mark a invalid line with this value (to be concealed later on) */
|
#define Q_VALUE_INVALID \
|
||||||
|
8192 /* mark a invalid line with this value (to be concealed later on) */
|
||||||
#define HCR_DIRAC 500 /* a line of high level */
|
#define HCR_DIRAC 500 /* a line of high level */
|
||||||
|
|
||||||
/* masks */
|
/* masks */
|
||||||
@ -154,10 +168,10 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#define LEFT_OFFSET 12
|
#define LEFT_OFFSET 12
|
||||||
|
|
||||||
/* when set HCR is replaced by a dummy-module which just fills the outputbuffer with a dirac sequence */
|
/* when set HCR is replaced by a dummy-module which just fills the outputbuffer
|
||||||
/* use this if HCR is suspected to write in other modules -- if error is stell there, HCR is innocent */
|
* with a dirac sequence */
|
||||||
#define USE_HCR_DUMMY 0
|
/* use this if HCR is suspected to write in other modules -- if error is stell
|
||||||
|
* there, HCR is innocent */
|
||||||
|
|
||||||
/* ------------------------------ */
|
/* ------------------------------ */
|
||||||
/* - insert HCR errors - */
|
/* - insert HCR errors - */
|
||||||
@ -168,63 +182,96 @@ amm-info@iis.fraunhofer.de
|
|||||||
#define ERROR_LOLC 0 /* offset: error if different from zero */
|
#define ERROR_LOLC 0 /* offset: error if different from zero */
|
||||||
|
|
||||||
/* segments are earlier empty as expected when decoding PCWs */
|
/* segments are earlier empty as expected when decoding PCWs */
|
||||||
#define ERROR_PCW_BODY 0 /* set a positive values to trigger the error (make segments earlyer appear to be empty) */
|
#define ERROR_PCW_BODY \
|
||||||
#define ERROR_PCW_BODY_SIGN 0 /* set a positive values to trigger the error (make segments earlyer appear to be empty) */
|
0 /* set a positive values to trigger the error (make segments earlyer \
|
||||||
#define ERROR_PCW_BODY_SIGN_ESC 0 /* set a positive values to trigger the error (make segments earlyer appear to be empty) */
|
appear to be empty) */
|
||||||
|
#define ERROR_PCW_BODY_SIGN \
|
||||||
|
0 /* set a positive values to trigger the error (make segments earlyer \
|
||||||
|
appear to be empty) */
|
||||||
|
#define ERROR_PCW_BODY_SIGN_ESC \
|
||||||
|
0 /* set a positive values to trigger the error (make segments earlyer \
|
||||||
|
appear to be empty) */
|
||||||
|
|
||||||
/* pretend there are too many bits decoded (enlarge length of codeword) at PCWs -- use a positive value */
|
/* pretend there are too many bits decoded (enlarge length of codeword) at PCWs
|
||||||
#define ERROR_PCW_BODY_ONLY_TOO_LONG 0 /* set a positive values to trigger the error */
|
* -- use a positive value */
|
||||||
#define ERROR_PCW_BODY_SIGN_TOO_LONG 0 /* set a positive values to trigger the error */
|
#define ERROR_PCW_BODY_ONLY_TOO_LONG \
|
||||||
#define ERROR_PCW_BODY_SIGN_ESC_TOO_LONG 0 /* set a positive values to trigger the error */
|
0 /* set a positive values to trigger the error */
|
||||||
|
#define ERROR_PCW_BODY_SIGN_TOO_LONG \
|
||||||
|
0 /* set a positive values to trigger the error */
|
||||||
|
#define ERROR_PCW_BODY_SIGN_ESC_TOO_LONG \
|
||||||
|
0 /* set a positive values to trigger the error */
|
||||||
|
|
||||||
/* modify HCR bitstream block */
|
/* modify HCR bitstream block */
|
||||||
#define ERROR_GENERATOR_BIT_STREAM_HCR 0 /* modify every <MODULO_DIVISOR_HCR>-bit when reading from bitstream */ /* !!! BEWARE!!! if RVLC is active, also RVLC data at ESC2 will be modified !!! */
|
|
||||||
#define MODULO_DIVISOR_HCR 30
|
|
||||||
|
|
||||||
|
#define MODULO_DIVISOR_HCR 30
|
||||||
|
|
||||||
/* ------------------------------ */
|
/* ------------------------------ */
|
||||||
/* - detect HCR errors - */
|
/* - detect HCR errors - */
|
||||||
/* ------------------------------ */
|
/* ------------------------------ */
|
||||||
/* check input data */
|
/* check input data */
|
||||||
#define CHECK_VALID_HCR_INPUT 1 /* it is highly recommended to check input data */
|
|
||||||
|
|
||||||
/* during decoding */
|
/* during decoding */
|
||||||
#define CHECK_SEGMENTATION_IMMEDIATELY 1 /* the 2 or 4 lines of a detected PCW-decoding-error is marked */
|
|
||||||
|
|
||||||
#define CHECK_SEGMENTATION_FINAL 1 /* all the segments are checked -- therefore -- if this check passes, its a kind of evidence that the
|
/* all the segments are checked -- therefore -- if this check passes, its a kind
|
||||||
decoded PCWs and non-PCWs are fine */
|
of evidence that the decoded PCWs and non-PCWs are fine */
|
||||||
|
|
||||||
#define DETECT_TOO_LONG_CW_READS 1 /* if a codeword is decoded there exists a border for the number of bits, which are allowed to read for this
|
/* if a codeword is decoded there exists a border for the number of bits, which
|
||||||
codeword. This border is the minimum of the length of the longest codeword (for the currently used
|
are allowed to read for this codeword. This border is the minimum of the
|
||||||
codebook) and the separately transmitted 'lengthOfLongestCodeword' in this frame and channel. The number
|
length of the longest codeword (for the currently used codebook) and the
|
||||||
of decoded bits is counted (for PCWs only -- there it makes really sense in my opinion). If this number
|
separately transmitted 'lengthOfLongestCodeword' in this frame and channel.
|
||||||
exceeds the border (derived as minimum -- see above), a error is detected. */
|
The number of decoded bits is counted (for PCWs only -- there it makes really
|
||||||
|
sense in my opinion). If this number exceeds the border (derived as minimum
|
||||||
|
-- see above), a error is detected. */
|
||||||
|
|
||||||
|
/* -----------------------------------------------------------------------------------------------------
|
||||||
|
This error check could be set to zero because due to a test within
|
||||||
|
RVLC-Escape-huffman-Decoder a too long codeword could not be detected -- it
|
||||||
|
seems that for RVLC-Escape-Codeword the coderoom is used to 100%. Therefore I
|
||||||
|
assume that the coderoom is used to 100% also for the codebooks 1..11 used at
|
||||||
|
HCR Therefore this test is deactivated pending further notice
|
||||||
|
-----------------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* test if the number of remaining bits in a segment is _below_ zero. If there
|
||||||
|
are no errors the lowest allowed value for remainingBitsInSegment is zero.
|
||||||
|
This check also could be set to zero (save runtime) */
|
||||||
|
|
||||||
#define STATE_MACHINE_ERROR_CHECK 1 /* test if the number of remaining bits in a segment is _below_ zero. If there are no errors the lowest
|
|
||||||
allowed value for remainingBitsInSegment is zero. This check also could be set to zero (save runtime) */
|
|
||||||
/* other */
|
/* other */
|
||||||
#define VALID_LAV_ERROR_TRIGGER 1 /* when set to '1', avoid setting the LAV-Flag in errorLog due to a previous-line-marking (at PCW decoder). A little
|
/* when set to '1', avoid setting the LAV-Flag in errorLog due to a
|
||||||
more runtime is needed then when writing values out into output-buffer. */
|
previous-line-marking (at PCW decoder). A little more runtime is needed then
|
||||||
|
when writing values out into output-buffer. */
|
||||||
#define HCR_LISTEN_TO_MUTED_LINES 0 /* listen to the "error-concealment" for testing */
|
|
||||||
|
|
||||||
/* ------------------------------ */
|
/* ------------------------------ */
|
||||||
/* - conceal HCR errors - */
|
/* - conceal HCR errors - */
|
||||||
/* ------------------------------ */
|
/* ------------------------------ */
|
||||||
|
|
||||||
#define HCR_ERROR_CONCEALMENT 1 /* if set to '1', HCR _mutes_ the erred quantized spectral coefficients */
|
#define HCR_ERROR_CONCEALMENT \
|
||||||
|
1 /* if set to '1', HCR _mutes_ the erred quantized spectral coefficients */
|
||||||
|
|
||||||
// ------------------------------------------------------------------------------------------------------------------
|
// ------------------------------------------------------------------------------------------------------------------
|
||||||
// errorLog: A word of 32 bits used for logging possible errors within HCR
|
// errorLog: A word of 32 bits used for
|
||||||
// in case of distorted bitstreams. Table of all known errors:
|
// logging possible errors within HCR
|
||||||
|
// in case of distorted
|
||||||
|
// bitstreams. Table of all
|
||||||
|
// known errors:
|
||||||
// ------------------------------------------------------------------------------------------------------------------------
|
// ------------------------------------------------------------------------------------------------------------------------
|
||||||
// bit fatal location meaning
|
// bit fatal location meaning
|
||||||
// ----+-----+-----------+--------------------------------------
|
// ----+-----+-----------+--------------------------------------
|
||||||
#define SEGMENT_OVERRIDE_ERR_PCW_BODY 0x80000000 // 31 no PCW-Dec During PCW decoding it is checked after every PCW if there are too many bits decoded (immediate check).
|
#define SEGMENT_OVERRIDE_ERR_PCW_BODY \
|
||||||
#define SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN 0x40000000 // 30 no PCW-Dec During PCW decoding it is checked after every PCW if there are too many bits decoded (immediate check).
|
0x80000000 // 31 no PCW-Dec During PCW decoding it is checked after
|
||||||
#define SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN_ESC 0x20000000 // 29 no PCW-Dec During PCW decoding it is checked after every PCW if there are too many bits decoded (immediate check).
|
// every PCW if there are too many bits decoded (immediate
|
||||||
#define EXTENDED_SORTED_COUNTER_OVERFLOW 0x10000000 // 28 yes Init-Dec Error during extending sideinfo (neither a PCW nor a nonPCW was decoded so far)
|
// check).
|
||||||
|
#define SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN \
|
||||||
|
0x40000000 // 30 no PCW-Dec During PCW decoding it is checked after
|
||||||
|
// every PCW if there are too many bits decoded (immediate
|
||||||
|
// check).
|
||||||
|
#define SEGMENT_OVERRIDE_ERR_PCW_BODY_SIGN_ESC \
|
||||||
|
0x20000000 // 29 no PCW-Dec During PCW decoding it is checked after
|
||||||
|
// every PCW if there are too many bits decoded (immediate
|
||||||
|
// check).
|
||||||
|
#define EXTENDED_SORTED_COUNTER_OVERFLOW \
|
||||||
|
0x10000000 // 28 yes Init-Dec Error during extending sideinfo
|
||||||
|
// (neither a PCW nor a nonPCW was decoded so far)
|
||||||
// 0x08000000 // 27 reserved
|
// 0x08000000 // 27 reserved
|
||||||
// 0x04000000 // 26 reserved
|
// 0x04000000 // 26 reserved
|
||||||
// 0x02000000 // 25 reserved
|
// 0x02000000 // 25 reserved
|
||||||
@ -235,39 +282,65 @@ amm-info@iis.fraunhofer.de
|
|||||||
// 0x00100000 // 20 reserved
|
// 0x00100000 // 20 reserved
|
||||||
|
|
||||||
/* special errors */
|
/* special errors */
|
||||||
#define TOO_MANY_PCW_BODY_BITS_DECODED 0x00080000 // 19 yes PCW-Dec During PCW-body-decoding too many bits have been read from bitstream -- advice: skip non-PCW decoding
|
#define TOO_MANY_PCW_BODY_BITS_DECODED \
|
||||||
#define TOO_MANY_PCW_BODY_SIGN_BITS_DECODED 0x00040000 // 18 yes PCW-Dec During PCW-body-sign-decoding too many bits have been read from bitstream -- advice: skip non-PCW decoding
|
0x00080000 // 19 yes PCW-Dec During PCW-body-decoding too many bits
|
||||||
#define TOO_MANY_PCW_BODY_SIGN_ESC_BITS_DECODED 0x00020000 // 17 yes PCW-Dec During PCW-body-sign-esc-decoding too many bits have been read from bitstream -- advice: skip non-PCW decoding
|
// have been read from bitstream -- advice: skip non-PCW decoding
|
||||||
|
#define TOO_MANY_PCW_BODY_SIGN_BITS_DECODED \
|
||||||
|
0x00040000 // 18 yes PCW-Dec During PCW-body-sign-decoding too many
|
||||||
|
// bits have been read from bitstream -- advice: skip non-PCW
|
||||||
|
// decoding
|
||||||
|
#define TOO_MANY_PCW_BODY_SIGN_ESC_BITS_DECODED \
|
||||||
|
0x00020000 // 17 yes PCW-Dec During PCW-body-sign-esc-decoding too
|
||||||
|
// many bits have been read from bitstream -- advice: skip
|
||||||
|
// non-PCW decoding
|
||||||
|
|
||||||
// 0x00010000 // 16 reserved
|
// 0x00010000 // 16 reserved
|
||||||
#define STATE_ERROR_BODY_ONLY 0x00008000 // 15 no NonPCW-Dec State machine returned with error
|
#define STATE_ERROR_BODY_ONLY \
|
||||||
#define STATE_ERROR_BODY_SIGN__BODY 0x00004000 // 14 no NonPCW-Dec State machine returned with error
|
0x00008000 // 15 no NonPCW-Dec State machine returned with error
|
||||||
#define STATE_ERROR_BODY_SIGN__SIGN 0x00002000 // 13 no NonPCW-Dec State machine returned with error
|
#define STATE_ERROR_BODY_SIGN__BODY \
|
||||||
#define STATE_ERROR_BODY_SIGN_ESC__BODY 0x00001000 // 12 no NonPCW-Dec State machine returned with error
|
0x00004000 // 14 no NonPCW-Dec State machine returned with error
|
||||||
#define STATE_ERROR_BODY_SIGN_ESC__SIGN 0x00000800 // 11 no NonPCW-Dec State machine returned with error
|
#define STATE_ERROR_BODY_SIGN__SIGN \
|
||||||
#define STATE_ERROR_BODY_SIGN_ESC__ESC_PREFIX 0x00000400 // 10 no NonPCW-Dec State machine returned with error
|
0x00002000 // 13 no NonPCW-Dec State machine returned with error
|
||||||
#define STATE_ERROR_BODY_SIGN_ESC__ESC_WORD 0x00000200 // 9 no NonPCW-Dec State machine returned with error
|
#define STATE_ERROR_BODY_SIGN_ESC__BODY \
|
||||||
#define HCR_SI_LENGTHS_FAILURE 0x00000100 // 8 yes Init-Dec LengthOfLongestCodeword must not be less than lenghtOfReorderedSpectralData
|
0x00001000 // 12 no NonPCW-Dec State machine returned with error
|
||||||
#define NUM_SECT_OUT_OF_RANGE_SHORT_BLOCK 0x00000080 // 7 yes Init-Dec The number of sections is not within the allowed range (short block)
|
#define STATE_ERROR_BODY_SIGN_ESC__SIGN \
|
||||||
#define NUM_SECT_OUT_OF_RANGE_LONG_BLOCK 0x00000040 // 6 yes Init-Dec The number of sections is not within the allowed range (long block)
|
0x00000800 // 11 no NonPCW-Dec State machine returned with error
|
||||||
#define LINE_IN_SECT_OUT_OF_RANGE_SHORT_BLOCK 0x00000020 // 5 yes Init-Dec The number of lines per section is not within the allowed range (short block)
|
#define STATE_ERROR_BODY_SIGN_ESC__ESC_PREFIX \
|
||||||
#define CB_OUT_OF_RANGE_SHORT_BLOCK 0x00000010 // 4 yes Init-Dec The codebook is not within the allowed range (short block)
|
0x00000400 // 10 no NonPCW-Dec State machine returned with error
|
||||||
#define LINE_IN_SECT_OUT_OF_RANGE_LONG_BLOCK 0x00000008 // 3 yes Init-Dec The number of lines per section is not within the allowed range (long block)
|
#define STATE_ERROR_BODY_SIGN_ESC__ESC_WORD \
|
||||||
#define CB_OUT_OF_RANGE_LONG_BLOCK 0x00000004 // 2 yes Init-Dec The codebook is not within the allowed range (long block)
|
0x00000200 // 9 no NonPCW-Dec State machine returned with error
|
||||||
#define LAV_VIOLATION 0x00000002 // 1 no Final The absolute value of at least one decoded line was too high for the according codebook.
|
#define HCR_SI_LENGTHS_FAILURE \
|
||||||
#define BIT_IN_SEGMENTATION_ERROR 0x00000001 // 0 no Final After PCW and non-PWC-decoding at least one segment is not zero (global check).
|
0x00000100 // 8 yes Init-Dec LengthOfLongestCodeword must not be
|
||||||
|
// less than lenghtOfReorderedSpectralData
|
||||||
|
#define NUM_SECT_OUT_OF_RANGE_SHORT_BLOCK \
|
||||||
|
0x00000080 // 7 yes Init-Dec The number of sections is not within
|
||||||
|
// the allowed range (short block)
|
||||||
|
#define NUM_SECT_OUT_OF_RANGE_LONG_BLOCK \
|
||||||
|
0x00000040 // 6 yes Init-Dec The number of sections is not within
|
||||||
|
// the allowed range (long block)
|
||||||
|
#define LINE_IN_SECT_OUT_OF_RANGE_SHORT_BLOCK \
|
||||||
|
0x00000020 // 5 yes Init-Dec The number of lines per section is not
|
||||||
|
// within the allowed range (short block)
|
||||||
|
#define CB_OUT_OF_RANGE_SHORT_BLOCK \
|
||||||
|
0x00000010 // 4 yes Init-Dec The codebook is not within the allowed
|
||||||
|
// range (short block)
|
||||||
|
#define LINE_IN_SECT_OUT_OF_RANGE_LONG_BLOCK \
|
||||||
|
0x00000008 // 3 yes Init-Dec The number of lines per section is not
|
||||||
|
// within the allowed range (long block)
|
||||||
|
#define CB_OUT_OF_RANGE_LONG_BLOCK \
|
||||||
|
0x00000004 // 2 yes Init-Dec The codebook is not within the allowed
|
||||||
|
// range (long block)
|
||||||
|
#define LAV_VIOLATION \
|
||||||
|
0x00000002 // 1 no Final The absolute value of at least one
|
||||||
|
// decoded line was too high for the according codebook.
|
||||||
|
#define BIT_IN_SEGMENTATION_ERROR \
|
||||||
|
0x00000001 // 0 no Final After PCW and non-PWC-decoding at least
|
||||||
|
// one segment is not zero (global check).
|
||||||
|
|
||||||
/*----------*/
|
/*----------*/
|
||||||
#define HCR_FATAL_PCW_ERROR_MASK 0x100E01FC
|
#define HCR_FATAL_PCW_ERROR_MASK 0x100E01FC
|
||||||
|
|
||||||
|
typedef enum { PCW_BODY, PCW_BODY_SIGN, PCW_BODY_SIGN_ESC } PCW_TYPE;
|
||||||
typedef enum {
|
|
||||||
PCW_BODY,
|
|
||||||
PCW_BODY_SIGN,
|
|
||||||
PCW_BODY_SIGN_ESC
|
|
||||||
} PCW_TYPE;
|
|
||||||
|
|
||||||
|
|
||||||
/* interface Decoder <---> HCR */
|
/* interface Decoder <---> HCR */
|
||||||
typedef struct {
|
typedef struct {
|
||||||
@ -277,7 +350,7 @@ typedef struct {
|
|||||||
SHORT lengthOfReorderedSpectralData;
|
SHORT lengthOfReorderedSpectralData;
|
||||||
SHORT numSection;
|
SHORT numSection;
|
||||||
SHORT *pNumLineInSect;
|
SHORT *pNumLineInSect;
|
||||||
USHORT bitstreamIndex;
|
INT bitstreamIndex;
|
||||||
SCHAR lengthOfLongestCodeword;
|
SCHAR lengthOfLongestCodeword;
|
||||||
UCHAR *pCodebook;
|
UCHAR *pCodebook;
|
||||||
} HCR_INPUT_OUTPUT;
|
} HCR_INPUT_OUTPUT;
|
||||||
@ -301,9 +374,8 @@ typedef struct{
|
|||||||
UINT pSegmentBitfield[((1024 >> 1) / NUMBER_OF_BIT_IN_WORD + 1)];
|
UINT pSegmentBitfield[((1024 >> 1) / NUMBER_OF_BIT_IN_WORD + 1)];
|
||||||
UINT pCodewordBitfield[((1024 >> 1) / NUMBER_OF_BIT_IN_WORD + 1)];
|
UINT pCodewordBitfield[((1024 >> 1) / NUMBER_OF_BIT_IN_WORD + 1)];
|
||||||
UINT segmentOffset;
|
UINT segmentOffset;
|
||||||
FIXP_DBL pTempValues[1024];
|
INT pLeftStartOfSegment[1024 >> 1];
|
||||||
USHORT pLeftStartOfSegment[1024>>1];
|
INT pRightStartOfSegment[1024 >> 1];
|
||||||
USHORT pRightStartOfSegment[1024>>1];
|
|
||||||
SCHAR pRemainingBitsInSegment[1024 >> 1];
|
SCHAR pRemainingBitsInSegment[1024 >> 1];
|
||||||
UCHAR readDirection;
|
UCHAR readDirection;
|
||||||
UCHAR numWordForBitfield;
|
UCHAR numWordForBitfield;
|
||||||
@ -311,7 +383,6 @@ typedef struct{
|
|||||||
} HCR_SEGMENT_INFO;
|
} HCR_SEGMENT_INFO;
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
|
|
||||||
UINT numCodeword;
|
UINT numCodeword;
|
||||||
UINT numSortedSection;
|
UINT numSortedSection;
|
||||||
USHORT pNumCodewordInSection[MAX_SFB_HCR];
|
USHORT pNumCodewordInSection[MAX_SFB_HCR];
|
||||||
@ -325,10 +396,8 @@ typedef struct{
|
|||||||
|
|
||||||
UCHAR pExtendedSortedCodebook[MAX_SFB_HCR + MAX_HCR_SETS];
|
UCHAR pExtendedSortedCodebook[MAX_SFB_HCR + MAX_HCR_SETS];
|
||||||
int extendedSortedCodebookIdx;
|
int extendedSortedCodebookIdx;
|
||||||
#if DETECT_TOO_LONG_CW_READS
|
|
||||||
UCHAR pMaxLenOfCbInExtSrtSec[MAX_SFB_HCR + MAX_HCR_SETS];
|
UCHAR pMaxLenOfCbInExtSrtSec[MAX_SFB_HCR + MAX_HCR_SETS];
|
||||||
int maxLenOfCbInExtSrtSecIdx;
|
int maxLenOfCbInExtSrtSecIdx;
|
||||||
#endif
|
|
||||||
UCHAR pCodebookSwitch[MAX_SFB_HCR];
|
UCHAR pCodebookSwitch[MAX_SFB_HCR];
|
||||||
} HCR_SECTION_INFO;
|
} HCR_SECTION_INFO;
|
||||||
|
|
||||||
@ -336,31 +405,28 @@ typedef UINT (*STATEFUNC)(HANDLE_FDK_BITSTREAM, void*);
|
|||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
/* worst-case and 1024/4 non-PCWs exist in worst-case */
|
/* worst-case and 1024/4 non-PCWs exist in worst-case */
|
||||||
FIXP_DBL *pResultBase; /* Base address for spectral data output target buffer */
|
FIXP_DBL
|
||||||
|
*pResultBase; /* Base address for spectral data output target buffer */
|
||||||
UINT iNode[1024 >> 2]; /* Helper indices for code books */
|
UINT iNode[1024 >> 2]; /* Helper indices for code books */
|
||||||
USHORT iResultPointer[1024>>2]; /* Helper indices for accessing pResultBase */
|
USHORT
|
||||||
|
iResultPointer[1024 >> 2]; /* Helper indices for accessing pResultBase */
|
||||||
UINT pEscapeSequenceInfo[1024 >> 2];
|
UINT pEscapeSequenceInfo[1024 >> 2];
|
||||||
UINT codewordOffset;
|
UINT codewordOffset;
|
||||||
STATEFUNC pState;
|
STATEFUNC pState;
|
||||||
UCHAR pCodebook[1024 >> 2];
|
UCHAR pCodebook[1024 >> 2];
|
||||||
UCHAR pCntSign[1024 >> 2];
|
UCHAR pCntSign[1024 >> 2];
|
||||||
/* this array holds the states coded as integer values within the range [0,1,..,7] */
|
/* this array holds the states coded as integer values within the range
|
||||||
|
* [0,1,..,7] */
|
||||||
SCHAR pSta[1024 >> 2];
|
SCHAR pSta[1024 >> 2];
|
||||||
} HCR_NON_PCW_SIDEINFO;
|
} HCR_NON_PCW_SIDEINFO;
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
HCR_INPUT_OUTPUT decInOut;
|
HCR_INPUT_OUTPUT decInOut;
|
||||||
HCR_CB_PAIRS cbPairs;
|
|
||||||
HCR_TABLE_INFO tableInfo;
|
|
||||||
HCR_SEGMENT_INFO segmentInfo;
|
HCR_SEGMENT_INFO segmentInfo;
|
||||||
HCR_SECTION_INFO sectionInfo;
|
HCR_SECTION_INFO sectionInfo;
|
||||||
HCR_NON_PCW_SIDEINFO nonPcwSideinfo;
|
HCR_NON_PCW_SIDEINFO nonPcwSideinfo;
|
||||||
|
|
||||||
INT globalHcrType;
|
|
||||||
} CErHcrInfo;
|
} CErHcrInfo;
|
||||||
|
|
||||||
|
|
||||||
typedef CErHcrInfo *H_HCR_INFO;
|
typedef CErHcrInfo *H_HCR_INFO;
|
||||||
|
|
||||||
|
#endif /* AACDEC_HCR_TYPES_H */
|
||||||
#endif /* _AACDEC_HCR_TYPES_H_ */
|
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,50 +90,64 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder ***************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Robert Weidner (DSP Solutions)
|
Author(s): Robert Weidner (DSP Solutions)
|
||||||
|
|
||||||
Description: HCR Decoder: Defines of state-constants, masks and
|
Description: HCR Decoder: Defines of state-constants, masks and
|
||||||
state-prototypes
|
state-prototypes
|
||||||
|
|
||||||
*******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef _AACDEC_HCRS_H_
|
#ifndef AACDEC_HCRS_H
|
||||||
#define _AACDEC_HCRS_H_
|
#define AACDEC_HCRS_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
#include "aacdec_hcr_types.h"
|
#include "aacdec_hcr_types.h"
|
||||||
/* The four different kinds of types of states are: */
|
/* The four different kinds of types of states are: */
|
||||||
/* different states are defined as constants */ /* start middle=self next stop */
|
/* different states are defined as constants */ /* start middle=self next
|
||||||
#define STOP_THIS_STATE 0 /* */
|
stop */
|
||||||
#define BODY_ONLY 1 /* X X X */
|
#define STOP_THIS_STATE \
|
||||||
#define BODY_SIGN__BODY 2 /* X X X X [stop if no sign] */
|
0 /* */
|
||||||
#define BODY_SIGN__SIGN 3 /* X X [stop if sign bits decoded] */
|
#define BODY_ONLY \
|
||||||
#define BODY_SIGN_ESC__BODY 4 /* X X X X [stop if no sign] */
|
1 /* X X X */
|
||||||
#define BODY_SIGN_ESC__SIGN 5 /* X X X [stop if no escape sequence] */
|
#define BODY_SIGN__BODY \
|
||||||
#define BODY_SIGN_ESC__ESC_PREFIX 6 /* X X */
|
2 /* X X X X [stop if no sign] */
|
||||||
#define BODY_SIGN_ESC__ESC_WORD 7 /* X X X [stop if abs(second qsc) != 16] */
|
#define BODY_SIGN__SIGN \
|
||||||
|
3 /* X X [stop if sign bits decoded] */
|
||||||
|
#define BODY_SIGN_ESC__BODY \
|
||||||
|
4 /* X X X X [stop if no sign] */
|
||||||
|
#define BODY_SIGN_ESC__SIGN \
|
||||||
|
5 /* X X X [stop if no escape sequence] */
|
||||||
|
#define BODY_SIGN_ESC__ESC_PREFIX \
|
||||||
|
6 /* X X */
|
||||||
|
#define BODY_SIGN_ESC__ESC_WORD \
|
||||||
|
7 /* X X X [stop if abs(second qsc) != 16] */
|
||||||
|
|
||||||
/* examples: */
|
/* examples: */
|
||||||
|
|
||||||
/* BODY_ONLY means only the codeword body will be decoded; no sign bits will follow and no escapesequence will follow */
|
/* BODY_ONLY means only the codeword body will be decoded; no
|
||||||
|
* sign bits will follow and no escapesequence will follow */
|
||||||
|
|
||||||
/* BODY_SIGN__BODY means that the codeword consists of two parts; body and sign part. The part '__BODY' after the two underscores shows */
|
/* BODY_SIGN__BODY means that the codeword consists of two parts;
|
||||||
/* that the bits which are currently decoded belong to the '__BODY' of the codeword and not to the sign part. */
|
* body and sign part. The part '__BODY' after the two underscores shows */
|
||||||
|
/* that the bits which are currently decoded belong
|
||||||
|
* to the '__BODY' of the codeword and not to the sign part. */
|
||||||
|
|
||||||
/* BODY_SIGN_ESC__ESC_PB means that the codeword consists of three parts; body, sign and (here: two) escape sequences; */
|
/* BODY_SIGN_ESC__ESC_PB means that the codeword consists of three parts;
|
||||||
|
* body, sign and (here: two) escape sequences; */
|
||||||
/* P = Prefix = ones */
|
/* P = Prefix = ones */
|
||||||
/* W = Escape Word */
|
/* W = Escape Word */
|
||||||
/* A = first possible (of two) Escape sequeces */
|
/* A = first possible (of two) Escape sequeces */
|
||||||
/* B = second possible (of two) Escape sequeces */
|
/* B = second possible (of two) Escape sequeces */
|
||||||
/* The part after the two underscores shows that the current bits which are decoded belong to the '__ESC_PB' - part of the */
|
/* The part after the two underscores shows that
|
||||||
/* codeword. That means the body and the sign bits are decoded completely and the bits which are decoded now belong to */
|
* the current bits which are decoded belong to the '__ESC_PB' - part of the */
|
||||||
/* the escape sequence [P = prefix; B=second possible escape sequence] */
|
/* codeword. That means the body and the sign bits
|
||||||
|
* are decoded completely and the bits which are decoded now belong to */
|
||||||
|
/* the escape sequence [P = prefix; B=second
|
||||||
|
* possible escape sequence] */
|
||||||
|
|
||||||
#define MSB_31_MASK 0x80000000 /* masks MSB (= Bit 31) in a 32 bit word */
|
#define MSB_31_MASK 0x80000000 /* masks MSB (= Bit 31) in a 32 bit word */
|
||||||
#define DIMENSION_OF_ESCAPE_CODEBOOK 2 /* for cb >= 11 is dimension 2 */
|
#define DIMENSION_OF_ESCAPE_CODEBOOK 2 /* for cb >= 11 is dimension 2 */
|
||||||
@ -138,7 +163,6 @@ amm-info@iis.fraunhofer.de
|
|||||||
#define MASK_FLAG_A 0x00200000
|
#define MASK_FLAG_A 0x00200000
|
||||||
#define MASK_FLAG_B 0x00100000
|
#define MASK_FLAG_B 0x00100000
|
||||||
|
|
||||||
|
|
||||||
extern void DecodeNonPCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO hHcr);
|
extern void DecodeNonPCWs(HANDLE_FDK_BITSTREAM bs, H_HCR_INFO hHcr);
|
||||||
|
|
||||||
UINT Hcr_State_BODY_ONLY(HANDLE_FDK_BITSTREAM, void*);
|
UINT Hcr_State_BODY_ONLY(HANDLE_FDK_BITSTREAM, void*);
|
||||||
@ -149,5 +173,4 @@ UINT Hcr_State_BODY_SIGN_ESC__SIGN (HANDLE_FDK_BITSTREAM, void*);
|
|||||||
UINT Hcr_State_BODY_SIGN_ESC__ESC_PREFIX(HANDLE_FDK_BITSTREAM, void*);
|
UINT Hcr_State_BODY_SIGN_ESC__ESC_PREFIX(HANDLE_FDK_BITSTREAM, void*);
|
||||||
UINT Hcr_State_BODY_SIGN_ESC__ESC_WORD(HANDLE_FDK_BITSTREAM, void*);
|
UINT Hcr_State_BODY_SIGN_ESC__ESC_WORD(HANDLE_FDK_BITSTREAM, void*);
|
||||||
|
|
||||||
#endif /* _AACDEC_HCRS_H_ */
|
#endif /* AACDEC_HCRS_H */
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,18 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: perceptual noise substitution tool
|
Description: perceptual noise substitution tool
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "aacdec_pns.h"
|
#include "aacdec_pns.h"
|
||||||
|
|
||||||
|
|
||||||
#include "aac_ram.h"
|
#include "aac_ram.h"
|
||||||
#include "aac_rom.h"
|
#include "aac_rom.h"
|
||||||
#include "channelinfo.h"
|
#include "channelinfo.h"
|
||||||
@ -99,7 +110,6 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#include "genericStds.h"
|
#include "genericStds.h"
|
||||||
|
|
||||||
|
|
||||||
#define NOISE_OFFSET 90 /* cf. ISO 14496-3 p. 175 */
|
#define NOISE_OFFSET 90 /* cf. ISO 14496-3 p. 175 */
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
@ -107,11 +117,10 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
The function resets the InterChannel and PNS data
|
The function resets the InterChannel and PNS data
|
||||||
*/
|
*/
|
||||||
void CPns_ResetData(
|
void CPns_ResetData(CPnsData *pPnsData,
|
||||||
CPnsData *pPnsData,
|
CPnsInterChannelData *pPnsInterChannelData) {
|
||||||
CPnsInterChannelData *pPnsInterChannelData
|
FDK_ASSERT(pPnsData != NULL);
|
||||||
)
|
FDK_ASSERT(pPnsInterChannelData != NULL);
|
||||||
{
|
|
||||||
/* Assign pointer always, since pPnsData is not persistent data */
|
/* Assign pointer always, since pPnsData is not persistent data */
|
||||||
pPnsData->pPnsInterChannelData = pPnsInterChannelData;
|
pPnsData->pPnsInterChannelData = pPnsInterChannelData;
|
||||||
pPnsData->PnsActive = 0;
|
pPnsData->PnsActive = 0;
|
||||||
@ -122,18 +131,13 @@ void CPns_ResetData(
|
|||||||
}
|
}
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\brief Initialize PNS data
|
\brief Update PNS noise generator state.
|
||||||
|
|
||||||
The function initializes the PNS data
|
The function sets the seed for PNS noise generation.
|
||||||
|
It can be used to link two or more channels in terms of PNS.
|
||||||
*/
|
*/
|
||||||
void CPns_InitPns(
|
void CPns_UpdateNoiseState(CPnsData *pPnsData, INT *currentSeed,
|
||||||
CPnsData *pPnsData,
|
INT *randomSeed) {
|
||||||
CPnsInterChannelData *pPnsInterChannelData,
|
|
||||||
INT* currentSeed, INT* randomSeed)
|
|
||||||
{
|
|
||||||
/* save pointer to inter channel data */
|
|
||||||
pPnsData->pPnsInterChannelData = pPnsInterChannelData;
|
|
||||||
|
|
||||||
/* use pointer because seed has to be
|
/* use pointer because seed has to be
|
||||||
same, left and right channel ! */
|
same, left and right channel ! */
|
||||||
pPnsData->currentSeed = currentSeed;
|
pPnsData->currentSeed = currentSeed;
|
||||||
@ -148,10 +152,7 @@ void CPns_InitPns(
|
|||||||
|
|
||||||
\return PNS used
|
\return PNS used
|
||||||
*/
|
*/
|
||||||
int CPns_IsPnsUsed (const CPnsData *pPnsData,
|
int CPns_IsPnsUsed(const CPnsData *pPnsData, const int group, const int band) {
|
||||||
const int group,
|
|
||||||
const int band)
|
|
||||||
{
|
|
||||||
unsigned pns_band = group * 16 + band;
|
unsigned pns_band = group * 16 + band;
|
||||||
|
|
||||||
return pPnsData->pnsUsed[pns_band] & (UCHAR)1;
|
return pPnsData->pnsUsed[pns_band] & (UCHAR)1;
|
||||||
@ -162,11 +163,8 @@ int CPns_IsPnsUsed (const CPnsData *pPnsData,
|
|||||||
|
|
||||||
The function activates the noise correlation between the channel pair
|
The function activates the noise correlation between the channel pair
|
||||||
*/
|
*/
|
||||||
void CPns_SetCorrelation(CPnsData *pPnsData,
|
void CPns_SetCorrelation(CPnsData *pPnsData, const int group, const int band,
|
||||||
const int group,
|
const int outofphase) {
|
||||||
const int band,
|
|
||||||
const int outofphase)
|
|
||||||
{
|
|
||||||
CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData;
|
CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData;
|
||||||
unsigned pns_band = group * 16 + band;
|
unsigned pns_band = group * 16 + band;
|
||||||
|
|
||||||
@ -181,11 +179,8 @@ void CPns_SetCorrelation(CPnsData *pPnsData,
|
|||||||
|
|
||||||
\return PNS is correlated
|
\return PNS is correlated
|
||||||
*/
|
*/
|
||||||
static
|
static int CPns_IsCorrelated(const CPnsData *pPnsData, const int group,
|
||||||
int CPns_IsCorrelated(const CPnsData *pPnsData,
|
const int band) {
|
||||||
const int group,
|
|
||||||
const int band)
|
|
||||||
{
|
|
||||||
CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData;
|
CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData;
|
||||||
unsigned pns_band = group * 16 + band;
|
unsigned pns_band = group * 16 + band;
|
||||||
|
|
||||||
@ -200,11 +195,8 @@ int CPns_IsCorrelated(const CPnsData *pPnsData,
|
|||||||
|
|
||||||
\return PNS is out-of-phase
|
\return PNS is out-of-phase
|
||||||
*/
|
*/
|
||||||
static
|
static int CPns_IsOutOfPhase(const CPnsData *pPnsData, const int group,
|
||||||
int CPns_IsOutOfPhase(const CPnsData *pPnsData,
|
const int band) {
|
||||||
const int group,
|
|
||||||
const int band)
|
|
||||||
{
|
|
||||||
CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData;
|
CPnsInterChannelData *pInterChannelData = pPnsData->pPnsInterChannelData;
|
||||||
unsigned pns_band = group * 16 + band;
|
unsigned pns_band = group * 16 + band;
|
||||||
|
|
||||||
@ -216,14 +208,9 @@ int CPns_IsOutOfPhase(const CPnsData *pPnsData,
|
|||||||
|
|
||||||
The function reads the PNS information from the bitstream
|
The function reads the PNS information from the bitstream
|
||||||
*/
|
*/
|
||||||
void CPns_Read (CPnsData *pPnsData,
|
void CPns_Read(CPnsData *pPnsData, HANDLE_FDK_BITSTREAM bs,
|
||||||
HANDLE_FDK_BITSTREAM bs,
|
const CodeBookDescription *hcb, SHORT *pScaleFactor,
|
||||||
const CodeBookDescription *hcb,
|
UCHAR global_gain, int band, int group /* = 0 */) {
|
||||||
SHORT *pScaleFactor,
|
|
||||||
UCHAR global_gain,
|
|
||||||
int band,
|
|
||||||
int group /* = 0 */)
|
|
||||||
{
|
|
||||||
int delta;
|
int delta;
|
||||||
UINT pns_band = group * 16 + band;
|
UINT pns_band = group * 16 + band;
|
||||||
|
|
||||||
@ -245,7 +232,6 @@ void CPns_Read (CPnsData *pPnsData,
|
|||||||
pPnsData->pnsUsed[pns_band] = 1;
|
pPnsData->pnsUsed[pns_band] = 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Generate a vector of noise of given length. The noise values are
|
* \brief Generate a vector of noise of given length. The noise values are
|
||||||
* scaled in order to yield a noise energy of 1.0
|
* scaled in order to yield a noise energy of 1.0
|
||||||
@ -254,10 +240,8 @@ void CPns_Read (CPnsData *pPnsData,
|
|||||||
* \param pRandomState pointer to the state of the random generator being used.
|
* \param pRandomState pointer to the state of the random generator being used.
|
||||||
* \return exponent of generated noise vector.
|
* \return exponent of generated noise vector.
|
||||||
*/
|
*/
|
||||||
static int GenerateRandomVector (FIXP_DBL *RESTRICT spec,
|
static int GenerateRandomVector(FIXP_DBL *RESTRICT spec, int size,
|
||||||
int size,
|
int *pRandomState) {
|
||||||
int *pRandomState)
|
|
||||||
{
|
|
||||||
int i, invNrg_e = 0, nrg_e = 0;
|
int i, invNrg_e = 0, nrg_e = 0;
|
||||||
FIXP_DBL invNrg_m, nrg_m = FL2FXCONST_DBL(0.0f);
|
FIXP_DBL invNrg_m, nrg_m = FL2FXCONST_DBL(0.0f);
|
||||||
FIXP_DBL *RESTRICT ptr = spec;
|
FIXP_DBL *RESTRICT ptr = spec;
|
||||||
@ -266,9 +250,9 @@ static int GenerateRandomVector (FIXP_DBL *RESTRICT spec,
|
|||||||
#define GEN_NOISE_NRG_SCALE 7
|
#define GEN_NOISE_NRG_SCALE 7
|
||||||
|
|
||||||
/* Generate noise and calculate energy. */
|
/* Generate noise and calculate energy. */
|
||||||
for (i=0; i<size; i++)
|
for (i = 0; i < size; i++) {
|
||||||
{
|
randomState =
|
||||||
randomState = (1664525L * randomState) + 1013904223L; // Numerical Recipes
|
(((INT64)1664525 * randomState) + (INT64)1013904223) & 0xFFFFFFFF;
|
||||||
nrg_m = fPow2AddDiv2(nrg_m, (FIXP_DBL)randomState >> GEN_NOISE_NRG_SCALE);
|
nrg_m = fPow2AddDiv2(nrg_m, (FIXP_DBL)randomState >> GEN_NOISE_NRG_SCALE);
|
||||||
*ptr++ = (FIXP_DBL)randomState;
|
*ptr++ = (FIXP_DBL)randomState;
|
||||||
}
|
}
|
||||||
@ -278,8 +262,7 @@ static int GenerateRandomVector (FIXP_DBL *RESTRICT spec,
|
|||||||
invNrg_m = invSqrtNorm2(nrg_m << 1, &invNrg_e);
|
invNrg_m = invSqrtNorm2(nrg_m << 1, &invNrg_e);
|
||||||
invNrg_e += -((nrg_e - 1) >> 1);
|
invNrg_e += -((nrg_e - 1) >> 1);
|
||||||
|
|
||||||
for (i=size; i--; )
|
for (i = size; i--;) {
|
||||||
{
|
|
||||||
spec[i] = fMult(spec[i], invNrg_m);
|
spec[i] = fMult(spec[i], invNrg_m);
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -289,8 +272,8 @@ static int GenerateRandomVector (FIXP_DBL *RESTRICT spec,
|
|||||||
return invNrg_e;
|
return invNrg_e;
|
||||||
}
|
}
|
||||||
|
|
||||||
static void ScaleBand (FIXP_DBL *RESTRICT spec, int size, int scaleFactor, int specScale, int noise_e, int out_of_phase)
|
static void ScaleBand(FIXP_DBL *RESTRICT spec, int size, int scaleFactor,
|
||||||
{
|
int specScale, int noise_e, int out_of_phase) {
|
||||||
int i, shift, sfExponent;
|
int i, shift, sfExponent;
|
||||||
FIXP_DBL sfMatissa;
|
FIXP_DBL sfMatissa;
|
||||||
|
|
||||||
@ -321,7 +304,6 @@ static void ScaleBand (FIXP_DBL *RESTRICT spec, int size, int scaleFactor, int s
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\brief Apply PNS
|
\brief Apply PNS
|
||||||
|
|
||||||
@ -329,51 +311,48 @@ static void ScaleBand (FIXP_DBL *RESTRICT spec, int size, int scaleFactor, int s
|
|||||||
flagged as noisy bands
|
flagged as noisy bands
|
||||||
|
|
||||||
*/
|
*/
|
||||||
void CPns_Apply (const CPnsData *pPnsData,
|
void CPns_Apply(const CPnsData *pPnsData, const CIcsInfo *pIcsInfo,
|
||||||
const CIcsInfo *pIcsInfo,
|
SPECTRAL_PTR pSpectrum, const SHORT *pSpecScale,
|
||||||
SPECTRAL_PTR pSpectrum,
|
|
||||||
const SHORT *pSpecScale,
|
|
||||||
const SHORT *pScaleFactor,
|
const SHORT *pScaleFactor,
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo,
|
||||||
const INT granuleLength,
|
const INT granuleLength, const int channel) {
|
||||||
const int channel)
|
|
||||||
{
|
|
||||||
if (pPnsData->PnsActive) {
|
if (pPnsData->PnsActive) {
|
||||||
const short *BandOffsets = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo);
|
const short *BandOffsets =
|
||||||
|
GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo);
|
||||||
|
|
||||||
int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(pIcsInfo);
|
int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(pIcsInfo);
|
||||||
|
|
||||||
for (int window = 0, group = 0; group < GetWindowGroups(pIcsInfo); group++) {
|
for (int window = 0, group = 0; group < GetWindowGroups(pIcsInfo);
|
||||||
for (int groupwin = 0; groupwin < GetWindowGroupLength(pIcsInfo, group); groupwin++, window++) {
|
group++) {
|
||||||
|
for (int groupwin = 0; groupwin < GetWindowGroupLength(pIcsInfo, group);
|
||||||
|
groupwin++, window++) {
|
||||||
FIXP_DBL *spectrum = SPEC(pSpectrum, window, granuleLength);
|
FIXP_DBL *spectrum = SPEC(pSpectrum, window, granuleLength);
|
||||||
|
|
||||||
for (int band = 0; band < ScaleFactorBandsTransmitted; band++) {
|
for (int band = 0; band < ScaleFactorBandsTransmitted; band++) {
|
||||||
if (CPns_IsPnsUsed(pPnsData, group, band)) {
|
if (CPns_IsPnsUsed(pPnsData, group, band)) {
|
||||||
UINT pns_band = group*16+band;
|
UINT pns_band = window * 16 + band;
|
||||||
|
|
||||||
int bandWidth = BandOffsets[band + 1] - BandOffsets[band];
|
int bandWidth = BandOffsets[band + 1] - BandOffsets[band];
|
||||||
int noise_e;
|
int noise_e;
|
||||||
|
|
||||||
FDK_ASSERT(bandWidth >= 0);
|
FDK_ASSERT(bandWidth >= 0);
|
||||||
|
|
||||||
if (channel > 0 && CPns_IsCorrelated(pPnsData, group, band))
|
if (channel > 0 && CPns_IsCorrelated(pPnsData, group, band)) {
|
||||||
{
|
noise_e =
|
||||||
noise_e = GenerateRandomVector (spectrum + BandOffsets [band], bandWidth,
|
GenerateRandomVector(spectrum + BandOffsets[band], bandWidth,
|
||||||
&pPnsData->randomSeed[pns_band]);
|
&pPnsData->randomSeed[pns_band]);
|
||||||
}
|
} else {
|
||||||
else
|
|
||||||
{
|
|
||||||
pPnsData->randomSeed[pns_band] = *pPnsData->currentSeed;
|
pPnsData->randomSeed[pns_band] = *pPnsData->currentSeed;
|
||||||
|
|
||||||
noise_e = GenerateRandomVector (spectrum + BandOffsets [band], bandWidth,
|
noise_e = GenerateRandomVector(spectrum + BandOffsets[band],
|
||||||
pPnsData->currentSeed) ;
|
bandWidth, pPnsData->currentSeed);
|
||||||
}
|
}
|
||||||
|
|
||||||
int outOfPhase = CPns_IsOutOfPhase(pPnsData, group, band);
|
int outOfPhase = CPns_IsOutOfPhase(pPnsData, group, band);
|
||||||
|
|
||||||
ScaleBand(spectrum + BandOffsets[band], bandWidth,
|
ScaleBand(spectrum + BandOffsets[band], bandWidth,
|
||||||
pScaleFactor[pns_band],
|
pScaleFactor[group * 16 + band], pSpecScale[window],
|
||||||
pSpecScale[window], noise_e, outOfPhase) ;
|
noise_e, outOfPhase);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,21 +90,21 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: perceptual noise substitution tool
|
Description: perceptual noise substitution tool
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef PNS_H
|
#ifndef AACDEC_PNS_H
|
||||||
#define PNS_H
|
#define AACDEC_PNS_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
|
|
||||||
#define NO_OFBANDS ((8 * 16))
|
#define NO_OFBANDS ((8 * 16))
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
@ -109,12 +120,10 @@ typedef struct {
|
|||||||
INT *randomSeed;
|
INT *randomSeed;
|
||||||
} CPnsData;
|
} CPnsData;
|
||||||
|
|
||||||
void CPns_InitPns ( CPnsData *pPnsData,
|
void CPns_UpdateNoiseState(CPnsData *pPnsData, INT *currentSeed,
|
||||||
CPnsInterChannelData *pPnsInterChannelData,
|
|
||||||
INT* currentSeed,
|
|
||||||
INT *randomSeed);
|
INT *randomSeed);
|
||||||
|
|
||||||
void CPns_ResetData ( CPnsData *pPnsData, CPnsInterChannelData *pPnsInterChannelData );
|
void CPns_ResetData(CPnsData *pPnsData,
|
||||||
|
CPnsInterChannelData *pPnsInterChannelData);
|
||||||
|
|
||||||
|
#endif /* #ifndef AACDEC_PNS_H */
|
||||||
#endif /* #ifndef PNS_H */
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,21 +90,24 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: temporal noise shaping tool
|
Description: temporal noise shaping tool
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "aacdec_tns.h"
|
#include "aacdec_tns.h"
|
||||||
#include "aac_rom.h"
|
#include "aac_rom.h"
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
#include "channelinfo.h"
|
#include "channelinfo.h"
|
||||||
|
|
||||||
|
#include "FDK_lpc.h"
|
||||||
|
|
||||||
|
#define TNS_MAXIMUM_ORDER_AAC 12
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\brief Reset tns data
|
\brief Reset tns data
|
||||||
@ -102,16 +116,17 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
\return none
|
\return none
|
||||||
*/
|
*/
|
||||||
void CTns_Reset(CTnsData *pTnsData)
|
void CTns_Reset(CTnsData *pTnsData) {
|
||||||
{
|
|
||||||
/* Note: the following FDKmemclear should not be required. */
|
/* Note: the following FDKmemclear should not be required. */
|
||||||
FDKmemclear(pTnsData->Filter, TNS_MAX_WINDOWS*TNS_MAXIMUM_FILTERS*sizeof(CFilter));
|
FDKmemclear(pTnsData->Filter,
|
||||||
|
TNS_MAX_WINDOWS * TNS_MAXIMUM_FILTERS * sizeof(CFilter));
|
||||||
FDKmemclear(pTnsData->NumberOfFilters, TNS_MAX_WINDOWS * sizeof(UCHAR));
|
FDKmemclear(pTnsData->NumberOfFilters, TNS_MAX_WINDOWS * sizeof(UCHAR));
|
||||||
pTnsData->DataPresent = 0;
|
pTnsData->DataPresent = 0;
|
||||||
pTnsData->Active = 0;
|
pTnsData->Active = 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
void CTns_ReadDataPresentFlag(HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */
|
void CTns_ReadDataPresentFlag(
|
||||||
|
HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */
|
||||||
CTnsData *pTnsData) /*!< pointer to aac decoder channel info */
|
CTnsData *pTnsData) /*!< pointer to aac decoder channel info */
|
||||||
{
|
{
|
||||||
pTnsData->DataPresent = (UCHAR)FDKreadBits(bs, 1);
|
pTnsData->DataPresent = (UCHAR)FDKreadBits(bs, 1);
|
||||||
@ -125,32 +140,33 @@ void CTns_ReadDataPresentFlag(HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstr
|
|||||||
|
|
||||||
\return none
|
\return none
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs,
|
AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs, CTnsData *pTnsData,
|
||||||
CTnsData *pTnsData,
|
const CIcsInfo *pIcsInfo, const UINT flags) {
|
||||||
const CIcsInfo *pIcsInfo,
|
|
||||||
const UINT flags)
|
|
||||||
{
|
|
||||||
UCHAR n_filt, order;
|
UCHAR n_filt, order;
|
||||||
UCHAR length, coef_res, coef_compress;
|
UCHAR length, coef_res, coef_compress;
|
||||||
UCHAR window;
|
UCHAR window;
|
||||||
UCHAR wins_per_frame = GetWindowsPerFrame(pIcsInfo);
|
UCHAR wins_per_frame;
|
||||||
UCHAR isLongFlag = IsLongBlock(pIcsInfo);
|
UCHAR isLongFlag;
|
||||||
|
UCHAR start_window;
|
||||||
AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK;
|
AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK;
|
||||||
|
|
||||||
if (!pTnsData->DataPresent) {
|
if (!pTnsData->DataPresent) {
|
||||||
return ErrorStatus;
|
return ErrorStatus;
|
||||||
}
|
}
|
||||||
|
|
||||||
for (window = 0; window < wins_per_frame; window++)
|
|
||||||
{
|
{
|
||||||
pTnsData->NumberOfFilters[window] = n_filt = (UCHAR) FDKreadBits(bs, isLongFlag ? 2 : 1);
|
start_window = 0;
|
||||||
|
wins_per_frame = GetWindowsPerFrame(pIcsInfo);
|
||||||
if (pTnsData->NumberOfFilters[window] > TNS_MAXIMUM_FILTERS){
|
isLongFlag = IsLongBlock(pIcsInfo);
|
||||||
pTnsData->NumberOfFilters[window] = n_filt = TNS_MAXIMUM_FILTERS;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
if (n_filt)
|
pTnsData->GainLd = 0;
|
||||||
{
|
|
||||||
|
for (window = start_window; window < wins_per_frame; window++) {
|
||||||
|
pTnsData->NumberOfFilters[window] = n_filt =
|
||||||
|
(UCHAR)FDKreadBits(bs, isLongFlag ? 2 : 1);
|
||||||
|
|
||||||
|
if (n_filt) {
|
||||||
int index;
|
int index;
|
||||||
UCHAR nextstopband;
|
UCHAR nextstopband;
|
||||||
|
|
||||||
@ -158,8 +174,7 @@ AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs,
|
|||||||
|
|
||||||
nextstopband = GetScaleFactorBandsTotal(pIcsInfo);
|
nextstopband = GetScaleFactorBandsTotal(pIcsInfo);
|
||||||
|
|
||||||
for (index=0; index < n_filt; index++)
|
for (index = 0; index < n_filt; index++) {
|
||||||
{
|
|
||||||
CFilter *filter = &pTnsData->Filter[window][index];
|
CFilter *filter = &pTnsData->Filter[window][index];
|
||||||
|
|
||||||
length = (UCHAR)FDKreadBits(bs, isLongFlag ? 6 : 4);
|
length = (UCHAR)FDKreadBits(bs, isLongFlag ? 6 : 4);
|
||||||
@ -172,19 +187,25 @@ AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs,
|
|||||||
filter->StopBand = nextstopband;
|
filter->StopBand = nextstopband;
|
||||||
nextstopband = filter->StartBand;
|
nextstopband = filter->StartBand;
|
||||||
|
|
||||||
{
|
if (flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA)) {
|
||||||
|
/* max(Order) = 15 (long), 7 (short) */
|
||||||
|
filter->Order = order = (UCHAR)FDKreadBits(bs, isLongFlag ? 4 : 3);
|
||||||
|
} else {
|
||||||
filter->Order = order = (UCHAR)FDKreadBits(bs, isLongFlag ? 5 : 3);
|
filter->Order = order = (UCHAR)FDKreadBits(bs, isLongFlag ? 5 : 3);
|
||||||
}
|
|
||||||
|
|
||||||
if (filter->Order > TNS_MAXIMUM_ORDER) {
|
if (filter->Order > TNS_MAXIMUM_ORDER) {
|
||||||
filter->Order = order = TNS_MAXIMUM_ORDER;
|
ErrorStatus = AAC_DEC_TNS_READ_ERROR;
|
||||||
|
return ErrorStatus;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
if (order)
|
FDK_ASSERT(order <=
|
||||||
{
|
TNS_MAXIMUM_ORDER); /* avoid illegal memory access */
|
||||||
|
if (order) {
|
||||||
UCHAR coef, s_mask;
|
UCHAR coef, s_mask;
|
||||||
UCHAR i;
|
UCHAR i;
|
||||||
SCHAR n_mask;
|
SCHAR n_mask;
|
||||||
|
|
||||||
static const UCHAR sgn_mask[] = {0x2, 0x4, 0x8};
|
static const UCHAR sgn_mask[] = {0x2, 0x4, 0x8};
|
||||||
static const SCHAR neg_mask[] = {~0x3, ~0x7, ~0xF};
|
static const SCHAR neg_mask[] = {~0x3, ~0x7, ~0xF};
|
||||||
|
|
||||||
@ -197,11 +218,11 @@ AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs,
|
|||||||
s_mask = sgn_mask[coef_res + 1 - coef_compress];
|
s_mask = sgn_mask[coef_res + 1 - coef_compress];
|
||||||
n_mask = neg_mask[coef_res + 1 - coef_compress];
|
n_mask = neg_mask[coef_res + 1 - coef_compress];
|
||||||
|
|
||||||
for (i=0; i < order; i++)
|
for (i = 0; i < order; i++) {
|
||||||
{
|
|
||||||
coef = (UCHAR)FDKreadBits(bs, filter->Resolution - coef_compress);
|
coef = (UCHAR)FDKreadBits(bs, filter->Resolution - coef_compress);
|
||||||
filter->Coeff[i] = (coef & s_mask) ? (coef | n_mask) : coef;
|
filter->Coeff[i] = (coef & s_mask) ? (coef | n_mask) : coef;
|
||||||
}
|
}
|
||||||
|
pTnsData->GainLd = 4;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@ -212,115 +233,35 @@ AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs,
|
|||||||
return ErrorStatus;
|
return ErrorStatus;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void CTns_ReadDataPresentUsac(HANDLE_FDK_BITSTREAM hBs, CTnsData *pTnsData0,
|
||||||
|
CTnsData *pTnsData1, UCHAR *ptns_on_lr,
|
||||||
|
const CIcsInfo *pIcsInfo, const UINT flags,
|
||||||
|
const UINT elFlags, const int fCommonWindow) {
|
||||||
|
int common_tns = 0;
|
||||||
|
|
||||||
static void CTns_Filter (FIXP_DBL *spec, int size, int inc, FIXP_TCC coeff [], int order)
|
if (fCommonWindow) {
|
||||||
{
|
common_tns = FDKreadBit(hBs);
|
||||||
// - Simple all-pole filter of order "order" defined by
|
|
||||||
// y(n) = x(n) - a(2)*y(n-1) - ... - a(order+1)*y(n-order)
|
|
||||||
//
|
|
||||||
// - The state variables of the filter are initialized to zero every time
|
|
||||||
//
|
|
||||||
// - The output data is written over the input data ("in-place operation")
|
|
||||||
//
|
|
||||||
// - An input vector of "size" samples is processed and the index increment
|
|
||||||
// to the next data sample is given by "inc"
|
|
||||||
|
|
||||||
int i,j,N;
|
|
||||||
FIXP_DBL *pSpec;
|
|
||||||
FIXP_DBL maxVal=FL2FXCONST_DBL(0.0);
|
|
||||||
INT s;
|
|
||||||
|
|
||||||
FDK_ASSERT(order <= TNS_MAXIMUM_ORDER);
|
|
||||||
C_ALLOC_SCRATCH_START(state, FIXP_DBL, TNS_MAXIMUM_ORDER);
|
|
||||||
FDKmemclear(state, order*sizeof(FIXP_DBL));
|
|
||||||
|
|
||||||
for (i=0; i<size; i++) {
|
|
||||||
maxVal = fixMax(maxVal,fixp_abs(spec[i]));
|
|
||||||
}
|
|
||||||
|
|
||||||
if ( maxVal > FL2FXCONST_DBL(0.03125*0.70710678118) )
|
|
||||||
s = fixMax(CntLeadingZeros(maxVal)-6,0);
|
|
||||||
else
|
|
||||||
s = fixMax(CntLeadingZeros(maxVal)-5,0);
|
|
||||||
|
|
||||||
s = fixMin(s,2);
|
|
||||||
s = s-1;
|
|
||||||
|
|
||||||
if (inc == -1)
|
|
||||||
pSpec = &spec[size - 1];
|
|
||||||
else
|
|
||||||
pSpec = &spec[0];
|
|
||||||
|
|
||||||
FIXP_TCC *pCoeff;
|
|
||||||
|
|
||||||
#define FIRST_PART_FLTR \
|
|
||||||
FIXP_DBL x, *pState = state; \
|
|
||||||
pCoeff = coeff; \
|
|
||||||
\
|
|
||||||
if (s < 0) \
|
|
||||||
x = (pSpec [0]>>1) + fMultDiv2 (*pCoeff++, pState [0]) ; \
|
|
||||||
else \
|
|
||||||
x = (pSpec [0]<<s) + fMultDiv2 (*pCoeff++, pState [0]) ;
|
|
||||||
|
|
||||||
#define INNER_FLTR_INLINE \
|
|
||||||
x = fMultAddDiv2 (x, *pCoeff, pState [1]); \
|
|
||||||
pState [0] = pState [1] - (fMultDiv2 (*pCoeff++, x) <<2) ; \
|
|
||||||
pState++;
|
|
||||||
|
|
||||||
#define LAST_PART_FLTR \
|
|
||||||
if (s < 0) \
|
|
||||||
*pSpec = x << 1; \
|
|
||||||
else \
|
|
||||||
*pSpec = x >> s; \
|
|
||||||
*pState =(-x) << 1; \
|
|
||||||
pSpec += inc ;
|
|
||||||
|
|
||||||
|
|
||||||
if (order>8)
|
|
||||||
{
|
|
||||||
N = (order-1)&7;
|
|
||||||
|
|
||||||
for (i = size ; i != 0 ; i--)
|
|
||||||
{
|
|
||||||
FIRST_PART_FLTR
|
|
||||||
|
|
||||||
for (j = N; j > 0 ; j--) { INNER_FLTR_INLINE }
|
|
||||||
|
|
||||||
INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE
|
|
||||||
INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE
|
|
||||||
|
|
||||||
LAST_PART_FLTR
|
|
||||||
}
|
|
||||||
|
|
||||||
} else if (order>4) {
|
|
||||||
|
|
||||||
N = (order-1)&3;
|
|
||||||
|
|
||||||
for (i = size ; i != 0 ; i--)
|
|
||||||
{
|
|
||||||
FIRST_PART_FLTR
|
|
||||||
for (j = N; j > 0 ; j--) { INNER_FLTR_INLINE }
|
|
||||||
|
|
||||||
INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE INNER_FLTR_INLINE
|
|
||||||
|
|
||||||
LAST_PART_FLTR
|
|
||||||
}
|
}
|
||||||
|
{ *ptns_on_lr = FDKreadBit(hBs); }
|
||||||
|
if (common_tns) {
|
||||||
|
pTnsData0->DataPresent = 1;
|
||||||
|
CTns_Read(hBs, pTnsData0, pIcsInfo, flags);
|
||||||
|
|
||||||
|
pTnsData0->DataPresent = 0;
|
||||||
|
pTnsData0->Active = 1;
|
||||||
|
*pTnsData1 = *pTnsData0;
|
||||||
} else {
|
} else {
|
||||||
|
int tns_present_both;
|
||||||
|
|
||||||
N = order-1;
|
tns_present_both = FDKreadBit(hBs);
|
||||||
|
if (tns_present_both) {
|
||||||
for (i = size ; i != 0 ; i--)
|
pTnsData0->DataPresent = 1;
|
||||||
{
|
pTnsData1->DataPresent = 1;
|
||||||
FIRST_PART_FLTR
|
} else {
|
||||||
|
pTnsData1->DataPresent = FDKreadBit(hBs);
|
||||||
for (j = N; j > 0 ; j--) { INNER_FLTR_INLINE }
|
pTnsData0->DataPresent = !pTnsData1->DataPresent;
|
||||||
|
|
||||||
LAST_PART_FLTR
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
C_ALLOC_SCRATCH_END(state, FIXP_DBL, TNS_MAXIMUM_ORDER);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
@ -330,83 +271,91 @@ static void CTns_Filter (FIXP_DBL *spec, int size, int inc, FIXP_TCC coeff [], i
|
|||||||
|
|
||||||
\return none
|
\return none
|
||||||
*/
|
*/
|
||||||
void CTns_Apply (
|
void CTns_Apply(CTnsData *RESTRICT pTnsData, /*!< pointer to aac decoder info */
|
||||||
CTnsData *RESTRICT pTnsData, /*!< pointer to aac decoder info */
|
const CIcsInfo *pIcsInfo, SPECTRAL_PTR pSpectralCoefficient,
|
||||||
const CIcsInfo *pIcsInfo,
|
|
||||||
SPECTRAL_PTR pSpectralCoefficient,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo,
|
||||||
const INT granuleLength
|
const INT granuleLength, const UCHAR nbands,
|
||||||
)
|
const UCHAR igf_active, const UINT flags) {
|
||||||
{
|
int window, index, start, stop, size, start_window, wins_per_frame;
|
||||||
int window,index,start,stop,size;
|
|
||||||
|
|
||||||
|
if (pTnsData->Active) {
|
||||||
|
C_AALLOC_SCRATCH_START(coeff, FIXP_TCC, TNS_MAXIMUM_ORDER)
|
||||||
|
|
||||||
if (pTnsData->Active)
|
|
||||||
{
|
{
|
||||||
C_AALLOC_SCRATCH_START(coeff, FIXP_TCC, TNS_MAXIMUM_ORDER);
|
start_window = 0;
|
||||||
|
wins_per_frame = GetWindowsPerFrame(pIcsInfo);
|
||||||
for (window=0; window < GetWindowsPerFrame(pIcsInfo); window++)
|
|
||||||
{
|
|
||||||
FIXP_DBL *pSpectrum = SPEC(pSpectralCoefficient, window, granuleLength);
|
|
||||||
|
|
||||||
for (index=0; index < pTnsData->NumberOfFilters[window]; index++)
|
|
||||||
{
|
|
||||||
CFilter *RESTRICT filter = &pTnsData->Filter[window][index];
|
|
||||||
|
|
||||||
if (filter->Order > 0)
|
|
||||||
{
|
|
||||||
FIXP_TCC *pCoeff;
|
|
||||||
int tns_max_bands;
|
|
||||||
|
|
||||||
pCoeff = &coeff[filter->Order-1];
|
|
||||||
if (filter->Resolution == 3)
|
|
||||||
{
|
|
||||||
int i;
|
|
||||||
for (i=0; i < filter->Order; i++)
|
|
||||||
*pCoeff-- = FDKaacDec_tnsCoeff3[filter->Coeff[i]+4];
|
|
||||||
}
|
}
|
||||||
else
|
|
||||||
{
|
for (window = start_window; window < wins_per_frame; window++) {
|
||||||
|
FIXP_DBL *pSpectrum;
|
||||||
|
|
||||||
|
{ pSpectrum = SPEC(pSpectralCoefficient, window, granuleLength); }
|
||||||
|
|
||||||
|
for (index = 0; index < pTnsData->NumberOfFilters[window]; index++) {
|
||||||
|
CFilter *filter = &pTnsData->Filter[window][index];
|
||||||
|
|
||||||
|
if (filter->Order > 0) {
|
||||||
|
FIXP_TCC *pCoeff;
|
||||||
|
UCHAR tns_max_bands;
|
||||||
|
|
||||||
|
pCoeff = coeff;
|
||||||
|
if (filter->Resolution == 3) {
|
||||||
int i;
|
int i;
|
||||||
for (i = 0; i < filter->Order; i++)
|
for (i = 0; i < filter->Order; i++)
|
||||||
*pCoeff-- = FDKaacDec_tnsCoeff4[filter->Coeff[i]+8];
|
*pCoeff++ = FDKaacDec_tnsCoeff3[filter->Coeff[i] + 4];
|
||||||
|
} else {
|
||||||
|
int i;
|
||||||
|
for (i = 0; i < filter->Order; i++)
|
||||||
|
*pCoeff++ = FDKaacDec_tnsCoeff4[filter->Coeff[i] + 8];
|
||||||
}
|
}
|
||||||
|
|
||||||
switch (granuleLength) {
|
switch (granuleLength) {
|
||||||
case 480:
|
case 480:
|
||||||
tns_max_bands = tns_max_bands_tbl_480[pSamplingRateInfo->samplingRateIndex];
|
tns_max_bands =
|
||||||
|
tns_max_bands_tbl_480[pSamplingRateInfo->samplingRateIndex];
|
||||||
break;
|
break;
|
||||||
case 512:
|
case 512:
|
||||||
tns_max_bands = tns_max_bands_tbl_512[pSamplingRateInfo->samplingRateIndex];
|
tns_max_bands =
|
||||||
|
tns_max_bands_tbl_512[pSamplingRateInfo->samplingRateIndex];
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
tns_max_bands = GetMaximumTnsBands(pIcsInfo, pSamplingRateInfo->samplingRateIndex);
|
tns_max_bands = GetMaximumTnsBands(
|
||||||
|
pIcsInfo, pSamplingRateInfo->samplingRateIndex);
|
||||||
|
/* See redefinition of TNS_MAX_BANDS table */
|
||||||
|
if ((flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA)) &&
|
||||||
|
(pSamplingRateInfo->samplingRateIndex > 5)) {
|
||||||
|
tns_max_bands += 1;
|
||||||
|
}
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
start = fixMin( fixMin(filter->StartBand, tns_max_bands),
|
start = fixMin(fixMin(filter->StartBand, tns_max_bands), nbands);
|
||||||
GetScaleFactorBandsTransmitted(pIcsInfo) );
|
|
||||||
|
|
||||||
start = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo)[start];
|
start = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo)[start];
|
||||||
|
|
||||||
stop = fixMin( fixMin(filter->StopBand, tns_max_bands),
|
if (igf_active) {
|
||||||
GetScaleFactorBandsTransmitted(pIcsInfo) );
|
stop = fixMin(filter->StopBand, nbands);
|
||||||
|
} else {
|
||||||
|
stop = fixMin(fixMin(filter->StopBand, tns_max_bands), nbands);
|
||||||
|
}
|
||||||
|
|
||||||
stop = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo)[stop];
|
stop = GetScaleFactorBandOffsets(pIcsInfo, pSamplingRateInfo)[stop];
|
||||||
|
|
||||||
size = stop - start;
|
size = stop - start;
|
||||||
|
|
||||||
if (size > 0) {
|
if (size) {
|
||||||
CTns_Filter(&pSpectrum[start],
|
C_ALLOC_SCRATCH_START(state, FIXP_DBL, TNS_MAXIMUM_ORDER)
|
||||||
size,
|
|
||||||
filter->Direction,
|
|
||||||
coeff,
|
|
||||||
filter->Order );
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
C_AALLOC_SCRATCH_END(coeff, FIXP_TCC, TNS_MAXIMUM_ORDER);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
FDKmemclear(state, TNS_MAXIMUM_ORDER * sizeof(FIXP_DBL));
|
||||||
|
CLpc_SynthesisLattice(pSpectrum + start, size, 0, 0,
|
||||||
|
filter->Direction, coeff, filter->Order,
|
||||||
|
state);
|
||||||
|
|
||||||
|
C_ALLOC_SCRATCH_END(state, FIXP_DBL, TNS_MAXIMUM_ORDER)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
C_AALLOC_SCRATCH_END(coeff, FIXP_TCC, TNS_MAXIMUM_ORDER)
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,29 +90,37 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: temporal noise shaping tool
|
Description: temporal noise shaping tool
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef TNS_H
|
#ifndef AACDEC_TNS_H
|
||||||
#define TNS_H
|
#define AACDEC_TNS_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
enum
|
enum {
|
||||||
{
|
|
||||||
TNS_MAX_WINDOWS = 8, /* 8 */
|
TNS_MAX_WINDOWS = 8, /* 8 */
|
||||||
TNS_MAXIMUM_ORDER = 20, /* 12 for AAC-LC and AAC-SSR. Set to 20 for AAC-Main (AOT 1). Some broken encoders also do order 20 for AAC-LC :( */
|
|
||||||
TNS_MAXIMUM_FILTERS = 3
|
TNS_MAXIMUM_FILTERS = 3
|
||||||
};
|
};
|
||||||
|
|
||||||
typedef struct
|
/* TNS_MAXIMUM_ORDER (for memory allocation)
|
||||||
{
|
12 for AAC-LC and AAC-SSR. Set to 20 for AAC-Main (AOT 1). Some broken
|
||||||
|
encoders also do order 20 for AAC-LC :( 15 for USAC (AOT 42)
|
||||||
|
*/
|
||||||
|
#define TNS_MAXIMUM_ORDER (20)
|
||||||
|
|
||||||
|
#if (TNS_MAXIMUM_ORDER < 15)
|
||||||
|
#error USAC: TNS filter order up 15 can be signaled!
|
||||||
|
#endif
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
SCHAR Coeff[TNS_MAXIMUM_ORDER];
|
SCHAR Coeff[TNS_MAXIMUM_ORDER];
|
||||||
|
|
||||||
UCHAR StartBand;
|
UCHAR StartBand;
|
||||||
@ -113,14 +132,18 @@ typedef struct
|
|||||||
UCHAR Order;
|
UCHAR Order;
|
||||||
} CFilter;
|
} CFilter;
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
CFilter Filter[TNS_MAX_WINDOWS][TNS_MAXIMUM_FILTERS];
|
CFilter Filter[TNS_MAX_WINDOWS][TNS_MAXIMUM_FILTERS];
|
||||||
UCHAR NumberOfFilters[TNS_MAX_WINDOWS];
|
UCHAR NumberOfFilters[TNS_MAX_WINDOWS];
|
||||||
UCHAR DataPresent;
|
UCHAR DataPresent;
|
||||||
UCHAR Active;
|
UCHAR Active;
|
||||||
|
|
||||||
|
/* log2 of the maximum total filter gains. The value is required to
|
||||||
|
keep necessary mantissa headroom so that while applying the TNS predictor
|
||||||
|
the mantissas do not overflow. */
|
||||||
|
UCHAR GainLd;
|
||||||
} CTnsData;
|
} CTnsData;
|
||||||
|
|
||||||
void CTns_Reset(CTnsData *pTnsData);
|
void CTns_Reset(CTnsData *pTnsData);
|
||||||
|
|
||||||
#endif /* #ifndef TNS_H */
|
#endif /* #ifndef AACDEC_TNS_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description:
|
Description:
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef AACDECODER_H
|
#ifndef AACDECODER_H
|
||||||
#define AACDECODER_H
|
#define AACDECODER_H
|
||||||
@ -104,42 +116,32 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#include "genericStds.h"
|
#include "genericStds.h"
|
||||||
|
|
||||||
|
#include "FDK_qmf_domain.h"
|
||||||
|
|
||||||
#include "sbrdecoder.h"
|
#include "sbrdecoder.h"
|
||||||
|
|
||||||
|
|
||||||
#include "aacdec_drc.h"
|
#include "aacdec_drc.h"
|
||||||
|
|
||||||
#include "pcmutils_lib.h"
|
#include "pcmdmx_lib.h"
|
||||||
|
|
||||||
|
#include "FDK_drcDecLib.h"
|
||||||
|
|
||||||
#include "limiter.h"
|
#include "limiter.h"
|
||||||
|
|
||||||
|
#include "FDK_delay.h"
|
||||||
|
|
||||||
/* Capabilities flags */
|
#define TIME_DATA_FLUSH_SIZE (128)
|
||||||
#define CAPF_AAC_LC 0x00000001
|
#define TIME_DATA_FLUSH_SIZE_SF (7)
|
||||||
#define CAPF_AAC_LD 0x00000002
|
|
||||||
#define CAPF_AAC_SCAL 0x00000004
|
#define AACDEC_MAX_NUM_PREROLL_AU_USAC (3)
|
||||||
#define CAPF_AAC_ER 0x00000008
|
#if (AACDEC_MAX_NUM_PREROLL_AU < 3)
|
||||||
#define CAPF_AAC_480 0x00000010
|
#undef AACDEC_MAX_NUM_PREROLL_AU
|
||||||
#define CAPF_AAC_512 0x00000020
|
#define AACDEC_MAX_NUM_PREROLL_AU AACDEC_MAX_NUM_PREROLL_AU_USAC
|
||||||
#define CAPF_AAC_960 0x00000040
|
#endif
|
||||||
#define CAPF_AAC_1024 0x00000080
|
|
||||||
#define CAPF_AAC_HCR 0x00000100
|
|
||||||
#define CAPF_AAC_VCB11 0x00000200
|
|
||||||
#define CAPF_AAC_RVLC 0x00000400
|
|
||||||
#define CAPF_AAC_MPEG4 0x00000800 /* PNS */
|
|
||||||
#define CAPF_AAC_DRC 0x00001000
|
|
||||||
#define CAPF_AAC_CONCEAL 0x00002000
|
|
||||||
#define CAPF_AAC_DRM_BSFORMAT 0x00004000
|
|
||||||
#define CAPF_AAC_BSAC 0x00008000
|
|
||||||
|
|
||||||
typedef struct AAC_DECODER_INSTANCE *HANDLE_AACDECODER;
|
typedef struct AAC_DECODER_INSTANCE *HANDLE_AACDECODER;
|
||||||
|
|
||||||
|
enum { L = 0, R = 1 };
|
||||||
enum
|
|
||||||
{
|
|
||||||
L = 0,
|
|
||||||
R = 1
|
|
||||||
};
|
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
unsigned char *buffer;
|
unsigned char *buffer;
|
||||||
@ -148,90 +150,204 @@ typedef struct {
|
|||||||
int nrElements;
|
int nrElements;
|
||||||
} CAncData;
|
} CAncData;
|
||||||
|
|
||||||
typedef enum {
|
typedef enum { NOT_DEFINED = -1, MODE_HQ = 0, MODE_LP = 1 } QMF_MODE;
|
||||||
NOT_DEFINED = -1,
|
|
||||||
MODE_HQ = 0,
|
|
||||||
MODE_LP = 1
|
|
||||||
} QMF_MODE;
|
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
int bsDelay;
|
int bsDelay;
|
||||||
} SBR_PARAMS;
|
} SBR_PARAMS;
|
||||||
|
|
||||||
|
enum {
|
||||||
|
AACDEC_FLUSH_OFF = 0,
|
||||||
|
AACDEC_RSV60_CFG_CHANGE_ATSC_FLUSH_ON = 1,
|
||||||
|
AACDEC_RSV60_DASH_IPF_ATSC_FLUSH_ON = 2,
|
||||||
|
AACDEC_USAC_DASH_IPF_FLUSH_ON = 3
|
||||||
|
};
|
||||||
|
|
||||||
|
enum {
|
||||||
|
AACDEC_BUILD_UP_OFF = 0,
|
||||||
|
AACDEC_RSV60_BUILD_UP_ON = 1,
|
||||||
|
AACDEC_RSV60_BUILD_UP_ON_IN_BAND = 2,
|
||||||
|
AACDEC_USAC_BUILD_UP_ON = 3,
|
||||||
|
AACDEC_RSV60_BUILD_UP_IDLE = 4,
|
||||||
|
AACDEC_RSV60_BUILD_UP_IDLE_IN_BAND = 5
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
/* Usac Extension Elements */
|
||||||
|
USAC_EXT_ELEMENT_TYPE usacExtElementType[(3)];
|
||||||
|
UINT usacExtElementDefaultLength[(3)];
|
||||||
|
UCHAR usacExtElementPayloadFrag[(3)];
|
||||||
|
} CUsacCoreExtensions;
|
||||||
|
|
||||||
/* AAC decoder (opaque toward userland) struct declaration */
|
/* AAC decoder (opaque toward userland) struct declaration */
|
||||||
struct AAC_DECODER_INSTANCE {
|
struct AAC_DECODER_INSTANCE {
|
||||||
INT aacChannels; /*!< Amount of AAC decoder channels allocated. */
|
INT aacChannels; /*!< Amount of AAC decoder channels allocated. */
|
||||||
INT ascChannels; /*!< Amount of AAC decoder channels signalled in ASC. */
|
INT ascChannels[(1 *
|
||||||
|
1)]; /*!< Amount of AAC decoder channels signalled in ASC. */
|
||||||
INT blockNumber; /*!< frame counter */
|
INT blockNumber; /*!< frame counter */
|
||||||
|
|
||||||
INT nrOfLayers;
|
INT nrOfLayers;
|
||||||
|
|
||||||
INT outputInterleaved; /*!< PCM output format (interleaved/none interleaved). */
|
INT outputInterleaved; /*!< PCM output format (interleaved/none interleaved).
|
||||||
|
*/
|
||||||
|
|
||||||
HANDLE_TRANSPORTDEC hInput; /*!< Transport layer handle. */
|
HANDLE_TRANSPORTDEC hInput; /*!< Transport layer handle. */
|
||||||
|
|
||||||
SamplingRateInfo samplingRateInfo; /*!< Sampling Rate information table */
|
SamplingRateInfo
|
||||||
|
samplingRateInfo[(1 * 1)]; /*!< Sampling Rate information table */
|
||||||
|
|
||||||
UCHAR frameOK; /*!< Will be unset if a consistency check, e.g. CRC etc. fails */
|
UCHAR
|
||||||
|
frameOK; /*!< Will be unset if a consistency check, e.g. CRC etc. fails */
|
||||||
|
|
||||||
UINT flags; /*!< Flags for internal decoder use. DO NOT USE self::streaminfo::flags ! */
|
UINT flags[(1 * 1)]; /*!< Flags for internal decoder use. DO NOT USE
|
||||||
|
self::streaminfo::flags ! */
|
||||||
|
UINT elFlags[(3 * ((8) * 2) + (((8) * 2)) / 2 + 4 * (1) +
|
||||||
|
1)]; /*!< Flags for internal decoder use (element specific). DO
|
||||||
|
NOT USE self::streaminfo::flags ! */
|
||||||
|
|
||||||
MP4_ELEMENT_ID elements[(8)]; /*!< Table where the element Id's are listed */
|
MP4_ELEMENT_ID elements[(3 * ((8) * 2) + (((8) * 2)) / 2 + 4 * (1) +
|
||||||
UCHAR elTags[(8)]; /*!< Table where the elements id Tags are listed */
|
1)]; /*!< Table where the element Id's are listed */
|
||||||
UCHAR chMapping[(8)]; /*!< Table of MPEG canonical order to bitstream channel order mapping. */
|
UCHAR elTags[(3 * ((8) * 2) + (((8) * 2)) / 2 + 4 * (1) +
|
||||||
|
1)]; /*!< Table where the elements id Tags are listed */
|
||||||
|
UCHAR chMapping[((8) * 2)]; /*!< Table of MPEG canonical order to bitstream
|
||||||
|
channel order mapping. */
|
||||||
|
|
||||||
AUDIO_CHANNEL_TYPE channelType[(8)]; /*!< Audio channel type of each output audio channel (from 0 upto numChannels). */
|
AUDIO_CHANNEL_TYPE channelType[(8)]; /*!< Audio channel type of each output
|
||||||
UCHAR channelIndices[(8)]; /*!< Audio channel index for each output audio channel (from 0 upto numChannels). */
|
audio channel (from 0 upto
|
||||||
/* See ISO/IEC 13818-7:2005(E), 8.5.3.2 Explicit channel mapping using a program_config_element() */
|
numChannels). */
|
||||||
|
UCHAR channelIndices[(8)]; /*!< Audio channel index for each output audio
|
||||||
|
channel (from 0 upto numChannels). */
|
||||||
|
/* See ISO/IEC 13818-7:2005(E), 8.5.3.2 Explicit channel mapping using a
|
||||||
|
* program_config_element() */
|
||||||
|
|
||||||
|
FDK_channelMapDescr mapDescr; /*!< Describes the output channel mapping. */
|
||||||
const UCHAR (*channelOutputMapping)[8]; /*!< Table for MPEG canonical order to output channel order mapping. */
|
UCHAR chMapIndex; /*!< Index to access one line of the channelOutputMapping
|
||||||
UCHAR chMapIndex; /*!< Index to access one line of the channelOutputMapping table. This is required
|
table. This is required because not all 8 channel
|
||||||
because not all 8 channel configurations have the same output mapping. */
|
configurations have the same output mapping. */
|
||||||
|
INT sbrDataLen; /*!< Expected length of the SBR remaining in bitbuffer after
|
||||||
|
the AAC payload has been pared. */
|
||||||
|
|
||||||
CProgramConfig pce;
|
CProgramConfig pce;
|
||||||
CStreamInfo streamInfo; /*!< pointer to StreamInfo data (read from the bitstream) */
|
CStreamInfo
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo[(8)]; /*!< Temporal channel memory */
|
streamInfo; /*!< Pointer to StreamInfo data (read from the bitstream) */
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[(8)]; /*!< Persistent channel memory */
|
CAacDecoderChannelInfo
|
||||||
|
*pAacDecoderChannelInfo[(8)]; /*!< Temporal channel memory */
|
||||||
|
CAacDecoderStaticChannelInfo
|
||||||
|
*pAacDecoderStaticChannelInfo[(8)]; /*!< Persistent channel memory */
|
||||||
|
|
||||||
CAacDecoderCommonData aacCommonData; /*!< Temporal shared data for all channels hooked into pAacDecoderChannelInfo */
|
FIXP_DBL *workBufferCore2;
|
||||||
|
PCM_DEC *pTimeData2;
|
||||||
|
INT timeData2Size;
|
||||||
|
|
||||||
|
CpePersistentData *cpeStaticData[(
|
||||||
|
3 * ((8) * 2) + (((8) * 2)) / 2 + 4 * (1) +
|
||||||
|
1)]; /*!< Pointer to persistent data shared by both channels of a CPE.
|
||||||
|
This structure is allocated once for each CPE. */
|
||||||
|
|
||||||
CConcealParams concealCommonData;
|
CConcealParams concealCommonData;
|
||||||
|
CConcealmentMethod concealMethodUser;
|
||||||
|
|
||||||
INT aacChannelsPrev; /*!< The amount of AAC core channels of the last successful decode call. */
|
CUsacCoreExtensions usacCoreExt; /*!< Data and handles to extend USAC FD/LPD
|
||||||
AUDIO_CHANNEL_TYPE channelTypePrev[(8)]; /*!< Array holding the channelType values of the last successful decode call. */
|
core decoder (SBR, MPS, ...) */
|
||||||
UCHAR channelIndicesPrev[(8)]; /*!< Array holding the channelIndices values of the last successful decode call. */
|
UINT numUsacElements[(1 * 1)];
|
||||||
|
UCHAR usacStereoConfigIndex[(3 * ((8) * 2) + (((8) * 2)) / 2 + 4 * (1) + 1)];
|
||||||
|
const CSUsacConfig *pUsacConfig[(1 * 1)];
|
||||||
|
INT nbDiv; /*!< number of frame divisions in LPD-domain */
|
||||||
|
|
||||||
|
UCHAR useLdQmfTimeAlign;
|
||||||
|
|
||||||
|
INT aacChannelsPrev; /*!< The amount of AAC core channels of the last
|
||||||
|
successful decode call. */
|
||||||
|
AUDIO_CHANNEL_TYPE channelTypePrev[(8)]; /*!< Array holding the channelType
|
||||||
|
values of the last successful
|
||||||
|
decode call. */
|
||||||
|
UCHAR
|
||||||
|
channelIndicesPrev[(8)]; /*!< Array holding the channelIndices values of
|
||||||
|
the last successful decode call. */
|
||||||
|
|
||||||
|
UCHAR
|
||||||
|
downscaleFactor; /*!< Variable to store a supported ELD downscale factor
|
||||||
|
of 1, 2, 3 or 4 */
|
||||||
|
UCHAR downscaleFactorInBS; /*!< Variable to store the (not necessarily
|
||||||
|
supported) ELD downscale factor discovered in
|
||||||
|
the bitstream */
|
||||||
|
|
||||||
HANDLE_SBRDECODER hSbrDecoder; /*!< SBR decoder handle. */
|
HANDLE_SBRDECODER hSbrDecoder; /*!< SBR decoder handle. */
|
||||||
UCHAR sbrEnabled; /*!< flag to store if SBR has been detected */
|
UCHAR sbrEnabled; /*!< flag to store if SBR has been detected */
|
||||||
UCHAR sbrEnabledPrev; /*!< flag to store if SBR has been detected from previous frame */
|
UCHAR sbrEnabledPrev; /*!< flag to store if SBR has been detected from
|
||||||
|
previous frame */
|
||||||
UCHAR psPossible; /*!< flag to store if PS is possible */
|
UCHAR psPossible; /*!< flag to store if PS is possible */
|
||||||
SBR_PARAMS sbrParams; /*!< struct to store all sbr parameters */
|
SBR_PARAMS sbrParams; /*!< struct to store all sbr parameters */
|
||||||
|
|
||||||
|
UCHAR *pDrmBsBuffer; /*!< Pointer to dynamic buffer which is used to reverse
|
||||||
|
the bits of the DRM SBR payload */
|
||||||
|
USHORT drmBsBufferSize; /*!< Size of the dynamic buffer which is used to
|
||||||
|
reverse the bits of the DRM SBR payload */
|
||||||
|
FDK_QMF_DOMAIN
|
||||||
|
qmfDomain; /*!< Instance of module for QMF domain data handling */
|
||||||
|
|
||||||
QMF_MODE qmfModeCurr; /*!< The current QMF mode */
|
QMF_MODE qmfModeCurr; /*!< The current QMF mode */
|
||||||
QMF_MODE qmfModeUser; /*!< The QMF mode requested by the library user */
|
QMF_MODE qmfModeUser; /*!< The QMF mode requested by the library user */
|
||||||
|
|
||||||
HANDLE_AAC_DRC hDrcInfo; /*!< handle to DRC data structure */
|
HANDLE_AAC_DRC hDrcInfo; /*!< handle to DRC data structure */
|
||||||
|
INT metadataExpiry; /*!< Metadata expiry time in milli-seconds. */
|
||||||
|
|
||||||
|
void *pMpegSurroundDecoder; /*!< pointer to mpeg surround decoder structure */
|
||||||
|
UCHAR mpsEnableUser; /*!< MPS enable user flag */
|
||||||
|
UCHAR mpsEnableCurr; /*!< MPS enable decoder state */
|
||||||
|
UCHAR mpsApplicable; /*!< MPS applicable */
|
||||||
|
SCHAR mpsOutputMode; /*!< setting: normal = 0, binaural = 1, stereo = 2, 5.1ch
|
||||||
|
= 3 */
|
||||||
|
INT mpsOutChannelsLast; /*!< The amount of channels returned by the last
|
||||||
|
successful MPS decoder call. */
|
||||||
|
INT mpsFrameSizeLast; /*!< The frame length returned by the last successful
|
||||||
|
MPS decoder call. */
|
||||||
|
|
||||||
CAncData ancData; /*!< structure to handle ancillary data */
|
CAncData ancData; /*!< structure to handle ancillary data */
|
||||||
|
|
||||||
HANDLE_PCM_DOWNMIX hPcmUtils; /*!< privat data for the PCM utils. */
|
HANDLE_PCM_DOWNMIX hPcmUtils; /*!< privat data for the PCM utils. */
|
||||||
TDLimiterPtr hLimiter; /*!< Handle of time domain limiter. */
|
|
||||||
UCHAR limiterEnableUser; /*!< The limiter configuration requested by the library user */
|
|
||||||
UCHAR limiterEnableCurr; /*!< The current limiter configuration. */
|
|
||||||
|
|
||||||
|
TDLimiterPtr hLimiter; /*!< Handle of time domain limiter. */
|
||||||
|
UCHAR limiterEnableUser; /*!< The limiter configuration requested by the
|
||||||
|
library user */
|
||||||
|
UCHAR limiterEnableCurr; /*!< The current limiter configuration. */
|
||||||
FIXP_DBL extGain[1]; /*!< Gain that must be applied to the output signal. */
|
FIXP_DBL extGain[1]; /*!< Gain that must be applied to the output signal. */
|
||||||
UINT extGainDelay; /*!< Delay that must be accounted for extGain. */
|
UINT extGainDelay; /*!< Delay that must be accounted for extGain. */
|
||||||
|
|
||||||
INT_PCM pcmOutputBuffer[(8)*(2048)];
|
INT_PCM pcmOutputBuffer[(8) * (1024 * 2)];
|
||||||
|
|
||||||
|
HANDLE_DRC_DECODER hUniDrcDecoder;
|
||||||
|
UCHAR multibandDrcPresent;
|
||||||
|
UCHAR numTimeSlots;
|
||||||
|
UINT loudnessInfoSetPosition[3];
|
||||||
|
SCHAR defaultTargetLoudness;
|
||||||
|
|
||||||
|
INT_PCM
|
||||||
|
*pTimeDataFlush[((8) * 2)]; /*!< Pointer to the flushed time data which
|
||||||
|
will be used for the crossfade in case of
|
||||||
|
an USAC DASH IPF config change */
|
||||||
|
|
||||||
|
UCHAR flushStatus; /*!< Indicates flush status: on|off */
|
||||||
|
SCHAR flushCnt; /*!< Flush frame counter */
|
||||||
|
UCHAR buildUpStatus; /*!< Indicates build up status: on|off */
|
||||||
|
SCHAR buildUpCnt; /*!< Build up frame counter */
|
||||||
|
UCHAR hasAudioPreRoll; /*!< Indicates preRoll status: on|off */
|
||||||
|
UINT prerollAULength[AACDEC_MAX_NUM_PREROLL_AU + 1]; /*!< Relative offset of
|
||||||
|
the prerollAU end
|
||||||
|
position to the AU
|
||||||
|
start position in the
|
||||||
|
bitstream */
|
||||||
|
INT accessUnit; /*!< Number of the actual processed preroll accessUnit */
|
||||||
|
UCHAR applyCrossfade; /*!< if set crossfade for seamless stream switching is
|
||||||
|
applied */
|
||||||
|
|
||||||
|
FDK_SignalDelay usacResidualDelay; /*!< Delay residual signal to compensate
|
||||||
|
for eSBR delay of DMX signal in case of
|
||||||
|
stereoConfigIndex==2. */
|
||||||
};
|
};
|
||||||
|
|
||||||
|
#define AAC_DEBUG_EXTHLP \
|
||||||
#define AAC_DEBUG_EXTHLP "\
|
"\
|
||||||
--- AAC-Core ---\n\
|
--- AAC-Core ---\n\
|
||||||
0x00010000 Header data\n\
|
0x00010000 Header data\n\
|
||||||
0x00020000 CRC data\n\
|
0x00020000 CRC data\n\
|
||||||
@ -272,7 +388,8 @@ void CAacDecoder_SignalInterruption(HANDLE_AACDECODER self);
|
|||||||
|
|
||||||
\return Error code
|
\return Error code
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR CAacDecoder_AncDataInit(CAncData *ancData, unsigned char *buffer, int size);
|
AAC_DECODER_ERROR CAacDecoder_AncDataInit(CAncData *ancData,
|
||||||
|
unsigned char *buffer, int size);
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\brief Get one ancillary data element
|
\brief Get one ancillary data element
|
||||||
@ -280,20 +397,22 @@ AAC_DECODER_ERROR CAacDecoder_AncDataInit(CAncData *ancData, unsigned char *buff
|
|||||||
\ancData Pointer to ancillary data structure
|
\ancData Pointer to ancillary data structure
|
||||||
\index Index of the anc data element to get
|
\index Index of the anc data element to get
|
||||||
\ptr Pointer to a buffer receiving a pointer to the requested anc data element
|
\ptr Pointer to a buffer receiving a pointer to the requested anc data element
|
||||||
\size Pointer to a buffer receiving the length of the requested anc data element
|
\size Pointer to a buffer receiving the length of the requested anc data
|
||||||
|
element
|
||||||
|
|
||||||
\return Error code
|
\return Error code
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR CAacDecoder_AncDataGet(CAncData *ancData, int index, unsigned char **ptr, int *size);
|
AAC_DECODER_ERROR CAacDecoder_AncDataGet(CAncData *ancData, int index,
|
||||||
|
unsigned char **ptr, int *size);
|
||||||
|
|
||||||
/* initialization of aac decoder */
|
/* initialization of aac decoder */
|
||||||
LINKSPEC_H HANDLE_AACDECODER CAacDecoder_Open(TRANSPORT_TYPE bsFormat);
|
LINKSPEC_H HANDLE_AACDECODER CAacDecoder_Open(TRANSPORT_TYPE bsFormat);
|
||||||
|
|
||||||
/* Initialization of stream-info elements */
|
/* Initialization of channel elements */
|
||||||
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_Init(HANDLE_AACDECODER self,
|
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_Init(HANDLE_AACDECODER self,
|
||||||
const CSAudioSpecificConfig *asc);
|
const CSAudioSpecificConfig *asc,
|
||||||
|
UCHAR configMode,
|
||||||
|
UCHAR *configChanged);
|
||||||
/*!
|
/*!
|
||||||
\brief Decodes one aac frame
|
\brief Decodes one aac frame
|
||||||
|
|
||||||
@ -308,12 +427,34 @@ LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_Init(HANDLE_AACDECODER self,
|
|||||||
\return error status
|
\return error status
|
||||||
*/
|
*/
|
||||||
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_DecodeFrame(
|
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_DecodeFrame(
|
||||||
HANDLE_AACDECODER self,
|
HANDLE_AACDECODER self, const UINT flags, FIXP_PCM *pTimeData,
|
||||||
const UINT flags,
|
const INT timeDataSize, const int timeDataChannelOffset);
|
||||||
INT_PCM *pTimeData,
|
|
||||||
const INT timeDataSize,
|
/* Free config dependent AAC memory */
|
||||||
const INT interleaved
|
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_FreeMem(HANDLE_AACDECODER self,
|
||||||
);
|
const int subStreamIndex);
|
||||||
|
|
||||||
|
/* Prepare crossfade for USAC DASH IPF config change */
|
||||||
|
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_PrepareCrossFade(
|
||||||
|
const INT_PCM *pTimeData, INT_PCM **pTimeDataFlush, const INT numChannels,
|
||||||
|
const INT frameSize, const INT interleaved);
|
||||||
|
|
||||||
|
/* Apply crossfade for USAC DASH IPF config change */
|
||||||
|
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_ApplyCrossFade(
|
||||||
|
INT_PCM *pTimeData, INT_PCM **pTimeDataFlush, const INT numChannels,
|
||||||
|
const INT frameSize, const INT interleaved);
|
||||||
|
|
||||||
|
/* Set flush and build up mode */
|
||||||
|
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_CtrlCFGChange(HANDLE_AACDECODER self,
|
||||||
|
UCHAR flushStatus,
|
||||||
|
SCHAR flushCnt,
|
||||||
|
UCHAR buildUpStatus,
|
||||||
|
SCHAR buildUpCnt);
|
||||||
|
|
||||||
|
/* Parse preRoll Extension Payload */
|
||||||
|
LINKSPEC_H AAC_DECODER_ERROR CAacDecoder_PreRollExtensionPayloadParse(
|
||||||
|
HANDLE_AACDECODER self, UINT *numPrerollAU, UINT *prerollAUOffset,
|
||||||
|
UINT *prerollAULength);
|
||||||
|
|
||||||
/* Destroy aac decoder */
|
/* Destroy aac decoder */
|
||||||
LINKSPEC_H void CAacDecoder_Close(HANDLE_AACDECODER self);
|
LINKSPEC_H void CAacDecoder_Close(HANDLE_AACDECODER self);
|
||||||
@ -321,5 +462,4 @@ LINKSPEC_H void CAacDecoder_Close ( HANDLE_AACDECODER self );
|
|||||||
/* get streaminfo handle from decoder */
|
/* get streaminfo handle from decoder */
|
||||||
LINKSPEC_H CStreamInfo *CAacDecoder_GetStreamInfo(HANDLE_AACDECODER self);
|
LINKSPEC_H CStreamInfo *CAacDecoder_GetStreamInfo(HANDLE_AACDECODER self);
|
||||||
|
|
||||||
|
|
||||||
#endif /* #ifndef AACDECODER_H */
|
#endif /* #ifndef AACDECODER_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,16 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
/******************************** Fraunhofer IIS ***************************
|
|
||||||
|
|
||||||
Author(s): Arthur Tritthart
|
Author(s): Arthur Tritthart
|
||||||
|
|
||||||
Description: (ARM optimised) Scaling of spectral data
|
Description: (ARM optimised) Scaling of spectral data
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
|
|
||||||
#define FUNCTION_CBlock_ScaleSpectralData_func1
|
#define FUNCTION_CBlock_ScaleSpectralData_func1
|
||||||
|
|
||||||
@ -97,26 +107,20 @@ amm-info@iis.fraunhofer.de
|
|||||||
loop overhead per sample, that goes down to 1-cycle per sample
|
loop overhead per sample, that goes down to 1-cycle per sample
|
||||||
with an optimal 4x-loop construct (do - 4x - while).
|
with an optimal 4x-loop construct (do - 4x - while).
|
||||||
*/
|
*/
|
||||||
|
static inline void CBlock_ScaleSpectralData_func1(
|
||||||
FDK_INLINE static void CBlock_ScaleSpectralData_func1(
|
FIXP_DBL *pSpectrum, int maxSfbs, const SHORT *RESTRICT BandOffsets,
|
||||||
FIXP_DBL *pSpectrum,
|
int SpecScale_window, const SHORT *RESTRICT pSfbScale, int window) {
|
||||||
int max_band,
|
|
||||||
const SHORT * RESTRICT BandOffsets,
|
|
||||||
int SpecScale_window,
|
|
||||||
const SHORT * RESTRICT pSfbScale,
|
|
||||||
int window)
|
|
||||||
{
|
|
||||||
int band_offset = 0;
|
int band_offset = 0;
|
||||||
for (int band=0; band < max_band; band++)
|
for (int band = 0; band < maxSfbs; band++) {
|
||||||
{
|
|
||||||
int runs = band_offset;
|
int runs = band_offset;
|
||||||
band_offset = BandOffsets[band + 1];
|
band_offset = BandOffsets[band + 1];
|
||||||
runs = band_offset - runs; /* is always a multiple of 4 */
|
runs = band_offset - runs; /* is always a multiple of 4 */
|
||||||
int scale = SpecScale_window-pSfbScale[window*16+band];
|
FDK_ASSERT((runs & 3) == 0);
|
||||||
if (scale)
|
int scale =
|
||||||
{
|
fMin(DFRACT_BITS - 1, SpecScale_window - pSfbScale[window * 16 + band]);
|
||||||
do
|
|
||||||
{
|
if (scale) {
|
||||||
|
do {
|
||||||
FIXP_DBL tmp0, tmp1, tmp2, tmp3;
|
FIXP_DBL tmp0, tmp1, tmp2, tmp3;
|
||||||
tmp0 = pSpectrum[0];
|
tmp0 = pSpectrum[0];
|
||||||
tmp1 = pSpectrum[1];
|
tmp1 = pSpectrum[1];
|
||||||
@ -131,9 +135,7 @@ FDK_INLINE static void CBlock_ScaleSpectralData_func1(
|
|||||||
*pSpectrum++ = tmp2;
|
*pSpectrum++ = tmp2;
|
||||||
*pSpectrum++ = tmp3;
|
*pSpectrum++ = tmp3;
|
||||||
} while ((runs = runs - 4) != 0);
|
} while ((runs = runs - 4) != 0);
|
||||||
}
|
} else {
|
||||||
else
|
|
||||||
{
|
|
||||||
pSpectrum += runs;
|
pSpectrum += runs;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: long/short-block decoding
|
Description: long/short-block decoding
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef BLOCK_H
|
#ifndef BLOCK_H
|
||||||
#define BLOCK_H
|
#define BLOCK_H
|
||||||
@ -97,25 +109,19 @@ amm-info@iis.fraunhofer.de
|
|||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
|
|
||||||
/* PNS (of block) */
|
/* PNS (of block) */
|
||||||
void CPns_Read (CPnsData *pPnsData,
|
void CPns_Read(CPnsData *pPnsData, HANDLE_FDK_BITSTREAM bs,
|
||||||
HANDLE_FDK_BITSTREAM bs,
|
const CodeBookDescription *hcb, SHORT *pScaleFactor,
|
||||||
const CodeBookDescription *hcb,
|
UCHAR global_gain, int band, int group);
|
||||||
SHORT *pScaleFactor,
|
|
||||||
UCHAR global_gain,
|
|
||||||
int band,
|
|
||||||
int group);
|
|
||||||
|
|
||||||
|
void CPns_Apply(const CPnsData *pPnsData, const CIcsInfo *pIcsInfo,
|
||||||
void CPns_Apply (const CPnsData *pPnsData,
|
SPECTRAL_PTR pSpectrum, const SHORT *pSpecScale,
|
||||||
const CIcsInfo *pIcsInfo,
|
|
||||||
SPECTRAL_PTR pSpectrum,
|
|
||||||
const SHORT *pSpecScale,
|
|
||||||
const SHORT *pScaleFactor,
|
const SHORT *pScaleFactor,
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo,
|
||||||
const INT granuleLength,
|
const INT granuleLength, const int channel);
|
||||||
const int channel);
|
|
||||||
|
|
||||||
|
|
||||||
|
void CBlock_ApplyNoise(CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
SamplingRateInfo *pSamplingRateInfo, ULONG *nfRandomSeed,
|
||||||
|
UCHAR *band_is_noise);
|
||||||
|
|
||||||
/* TNS (of block) */
|
/* TNS (of block) */
|
||||||
/*!
|
/*!
|
||||||
@ -126,28 +132,21 @@ void CPns_Apply (const CPnsData *pPnsData,
|
|||||||
|
|
||||||
\return none
|
\return none
|
||||||
*/
|
*/
|
||||||
void CTns_ReadDataPresentFlag(HANDLE_FDK_BITSTREAM bs,
|
void CTns_ReadDataPresentFlag(HANDLE_FDK_BITSTREAM bs, CTnsData *pTnsData);
|
||||||
CTnsData *pTnsData);
|
|
||||||
|
|
||||||
void CTns_ReadDataPresentUsac(
|
void CTns_ReadDataPresentUsac(HANDLE_FDK_BITSTREAM hBs, CTnsData *pTnsData0,
|
||||||
HANDLE_FDK_BITSTREAM hBs,
|
CTnsData *pTnsData1, UCHAR *ptns_on_lr,
|
||||||
CTnsData *pTnsData0,
|
const CIcsInfo *pIcsInfo, const UINT flags,
|
||||||
CTnsData *pTnsData1,
|
const UINT elFlags, const int fCommonWindow);
|
||||||
const CIcsInfo *pIcsInfo,
|
|
||||||
const UINT flags,
|
|
||||||
const int fCommonWindow
|
|
||||||
);
|
|
||||||
|
|
||||||
AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs,
|
AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs, CTnsData *pTnsData,
|
||||||
CTnsData *pTnsData,
|
const CIcsInfo *pIcsInfo, const UINT flags);
|
||||||
const CIcsInfo *pIcsInfo,
|
|
||||||
const UINT flags);
|
|
||||||
|
|
||||||
void CTns_Apply(CTnsData *RESTRICT pTnsData, /*!< pointer to aac decoder info */
|
void CTns_Apply(CTnsData *RESTRICT pTnsData, /*!< pointer to aac decoder info */
|
||||||
const CIcsInfo *pIcsInfo,
|
const CIcsInfo *pIcsInfo, SPECTRAL_PTR pSpectralCoefficient,
|
||||||
SPECTRAL_PTR pSpectralCoefficient,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo,
|
||||||
const INT granuleLength);
|
const INT granuleLength, const UCHAR nbands,
|
||||||
|
const UCHAR igf_active, const UINT flags);
|
||||||
|
|
||||||
/* Block */
|
/* Block */
|
||||||
|
|
||||||
@ -155,17 +154,16 @@ LONG CBlock_GetEscape(HANDLE_FDK_BITSTREAM bs, const LONG q);
|
|||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Read scale factor data. See chapter 4.6.2.3.2 of ISO/IEC 14496-3.
|
* \brief Read scale factor data. See chapter 4.6.2.3.2 of ISO/IEC 14496-3.
|
||||||
* The SF_OFFSET = 100 value referenced in chapter 4.6.2.3.3 is already substracted
|
* The SF_OFFSET = 100 value referenced in chapter 4.6.2.3.3 is already
|
||||||
* from the scale factor values. Also includes PNS data reading.
|
* substracted from the scale factor values. Also includes PNS data reading.
|
||||||
* \param bs bit stream handle data source
|
* \param bs bit stream handle data source
|
||||||
* \param pAacDecoderChannelInfo channel context info were decoded data is stored into.
|
* \param pAacDecoderChannelInfo channel context info were decoded data is
|
||||||
|
* stored into.
|
||||||
* \param flags the decoder flags.
|
* \param flags the decoder flags.
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR CBlock_ReadScaleFactorData(
|
AAC_DECODER_ERROR CBlock_ReadScaleFactorData(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo, HANDLE_FDK_BITSTREAM bs,
|
||||||
HANDLE_FDK_BITSTREAM bs,
|
const UINT flags);
|
||||||
const UINT flags
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Read Huffman encoded spectral data.
|
* \brief Read Huffman encoded spectral data.
|
||||||
@ -173,66 +171,80 @@ AAC_DECODER_ERROR CBlock_ReadScaleFactorData(
|
|||||||
* \param pSamplingRateInfo sampling rate info (sfb offsets).
|
* \param pSamplingRateInfo sampling rate info (sfb offsets).
|
||||||
* \param flags syntax flags.
|
* \param flags syntax flags.
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR CBlock_ReadSpectralData(HANDLE_FDK_BITSTREAM bs,
|
AAC_DECODER_ERROR CBlock_ReadSpectralData(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
HANDLE_FDK_BITSTREAM bs, CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo, const UINT flags);
|
||||||
const UINT flags);
|
|
||||||
|
|
||||||
|
|
||||||
AAC_DECODER_ERROR CBlock_ReadSectionData(HANDLE_FDK_BITSTREAM bs,
|
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
|
||||||
const UINT flags);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief find a common exponent (shift factor) for all sfb in each Spectral window, and store them into
|
* \brief Read Arithmetic encoded spectral data.
|
||||||
* CAacDecoderChannelInfo::specScale.
|
|
||||||
* \param pAacDecoderChannelInfo channel context info.
|
* \param pAacDecoderChannelInfo channel context info.
|
||||||
|
* \param pAacDecoderStaticChannelInfo static channel context info.
|
||||||
|
* \param pSamplingRateInfo sampling rate info (sfb offsets).
|
||||||
|
* \param frame_length spectral window length.
|
||||||
|
* \param flags syntax flags.
|
||||||
|
* \return error code.
|
||||||
|
*/
|
||||||
|
AAC_DECODER_ERROR CBlock_ReadAcSpectralData(
|
||||||
|
HANDLE_FDK_BITSTREAM hBs, CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
||||||
|
const SamplingRateInfo *pSamplingRateInfo, const UINT frame_length,
|
||||||
|
const UINT flags);
|
||||||
|
|
||||||
|
AAC_DECODER_ERROR CBlock_ReadSectionData(
|
||||||
|
HANDLE_FDK_BITSTREAM bs, CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
const SamplingRateInfo *pSamplingRateInfo, const UINT flags);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief find a common exponent (shift factor) for all sfb in each Spectral
|
||||||
|
* window, and store them into CAacDecoderChannelInfo::specScale.
|
||||||
|
* \param pAacDecoderChannelInfo channel context info.
|
||||||
|
* \param UCHAR maxSfbs maximum number of SFBs to be processed (might differ
|
||||||
|
* from pAacDecoderChannelInfo->icsInfo.MaxSfBands)
|
||||||
* \param pSamplingRateInfo sampling rate info (sfb offsets).
|
* \param pSamplingRateInfo sampling rate info (sfb offsets).
|
||||||
*/
|
*/
|
||||||
void CBlock_ScaleSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo);
|
void CBlock_ScaleSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
UCHAR maxSfbs,
|
||||||
|
SamplingRateInfo *pSamplingRateInfo);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Apply TNS and PNS tools.
|
* \brief Apply TNS and PNS tools.
|
||||||
*/
|
*/
|
||||||
void ApplyTools(CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
|
void ApplyTools(CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo, const UINT flags,
|
||||||
const UINT flags,
|
const UINT elFlags, const int channel, const int maybe_jstereo);
|
||||||
const int channel );
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Transform MDCT spectral data into time domain
|
* \brief Transform MDCT spectral data into time domain
|
||||||
*/
|
*/
|
||||||
void CBlock_FrequencyToTime(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
void CBlock_FrequencyToTime(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
||||||
INT_PCM outSamples[],
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo, FIXP_PCM outSamples[],
|
||||||
const SHORT frameLen,
|
const SHORT frameLen, const int frameOk, FIXP_DBL *pWorkBuffer1,
|
||||||
const int stride,
|
UINT elFlags, INT elCh);
|
||||||
const int frameOk,
|
|
||||||
FIXP_DBL *pWorkBuffer1);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Transform double lapped MDCT (AAC-ELD) spectral data into time domain.
|
* \brief Transform double lapped MDCT (AAC-ELD) spectral data into time domain.
|
||||||
*/
|
*/
|
||||||
void CBlock_FrequencyToTimeLowDelay(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
void CBlock_FrequencyToTimeLowDelay(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
||||||
INT_PCM outSamples[],
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo, FIXP_PCM outSamples[],
|
||||||
const short frameLen,
|
const short frameLen);
|
||||||
const char stride);
|
|
||||||
|
|
||||||
AAC_DECODER_ERROR CBlock_InverseQuantizeSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo);
|
AAC_DECODER_ERROR CBlock_InverseQuantizeSpectralData(
|
||||||
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
SamplingRateInfo *pSamplingRateInfo, UCHAR *band_is_noise,
|
||||||
|
UCHAR active_band_search);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Calculate 2^(lsb/4) * value^(4/3)
|
* \brief Calculate 2^(lsb/4) * value^(4/3)
|
||||||
* \param pValue pointer to quantized value. The inverse quantized result is stored back here.
|
* \param pValue pointer to quantized value. The inverse quantized result is
|
||||||
* \param lsb 2 LSBs of the scale factor (scaleFactor % 4) applied as power 2 factor to the
|
* stored back here.
|
||||||
* resulting inverse quantized value.
|
* \param lsb 2 LSBs of the scale factor (scaleFactor % 4) applied as power 2
|
||||||
|
* factor to the resulting inverse quantized value.
|
||||||
* \return the exponent of the result (mantissa) stored into *pValue.
|
* \return the exponent of the result (mantissa) stored into *pValue.
|
||||||
*/
|
*/
|
||||||
FDK_INLINE
|
FDK_INLINE
|
||||||
int EvaluatePower43 ( FIXP_DBL *pValue,
|
int EvaluatePower43(FIXP_DBL *pValue, UINT lsb) {
|
||||||
UINT lsb )
|
|
||||||
{
|
|
||||||
FIXP_DBL value;
|
FIXP_DBL value;
|
||||||
UINT freeBits;
|
UINT freeBits;
|
||||||
UINT exponent;
|
UINT exponent;
|
||||||
@ -261,22 +273,21 @@ int EvaluatePower43 ( FIXP_DBL *pValue,
|
|||||||
return ExponentTable[lsb][exponent] + 1;
|
return ExponentTable[lsb][exponent] + 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* Recalculate gain */
|
||||||
|
FIXP_DBL get_gain(const FIXP_DBL *x, const FIXP_DBL *y, int n);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief determine the required shift scale for the given quantized value and scale (factor % 4) value.
|
* \brief determine the required shift scale for the given quantized value and
|
||||||
|
* scale (factor % 4) value.
|
||||||
*/
|
*/
|
||||||
FDK_INLINE int GetScaleFromValue (FIXP_DBL value, unsigned int lsb)
|
FDK_INLINE int GetScaleFromValue(FIXP_DBL value, unsigned int lsb) {
|
||||||
{
|
if (value != (FIXP_DBL)0) {
|
||||||
if (value!=(FIXP_DBL)0)
|
|
||||||
{
|
|
||||||
int scale = EvaluatePower43(&value, lsb);
|
int scale = EvaluatePower43(&value, lsb);
|
||||||
return CntLeadingZeros(value) - scale - 2;
|
return CntLeadingZeros(value) - scale - 2;
|
||||||
|
} else
|
||||||
|
return 0; /* Return zero, because its useless to scale a zero value, saves
|
||||||
|
workload and avoids scaling overshifts. */
|
||||||
}
|
}
|
||||||
else
|
|
||||||
return 0; /* Return zero, because its useless to scale a zero value, saves workload and avoids scaling overshifts. */
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
//#ifdef AACDEC_HUFFMANDECODER_ENABLE
|
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\brief Read huffman codeword
|
\brief Read huffman codeword
|
||||||
@ -286,26 +297,23 @@ FDK_INLINE int GetScaleFromValue (FIXP_DBL value, unsigned int lsb)
|
|||||||
|
|
||||||
\return index value
|
\return index value
|
||||||
*/
|
*/
|
||||||
inline int CBlock_DecodeHuffmanWord( HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */
|
inline int CBlock_DecodeHuffmanWord(
|
||||||
|
HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */
|
||||||
const CodeBookDescription *hcb) /*!< pointer to codebook description */
|
const CodeBookDescription *hcb) /*!< pointer to codebook description */
|
||||||
{
|
{
|
||||||
UINT val;
|
UINT val;
|
||||||
UINT index = 0;
|
UINT index = 0;
|
||||||
const USHORT(*CodeBook)[HuffmanEntries] = hcb->CodeBook;
|
const USHORT(*CodeBook)[HuffmanEntries] = hcb->CodeBook;
|
||||||
|
|
||||||
while (1)
|
while (1) {
|
||||||
{
|
val = CodeBook[index]
|
||||||
val = CodeBook[index][FDKreadBits(bs,HuffmanBits)]; /* Expensive memory access */
|
[FDKreadBits(bs, HuffmanBits)]; /* Expensive memory access */
|
||||||
|
|
||||||
if ((val & 1) == 0)
|
if ((val & 1) == 0) {
|
||||||
{
|
|
||||||
index = val >> 2;
|
index = val >> 2;
|
||||||
continue;
|
continue;
|
||||||
}
|
} else {
|
||||||
else
|
if (val & 2) {
|
||||||
{
|
|
||||||
if (val & 2)
|
|
||||||
{
|
|
||||||
FDKpushBackCache(bs, 1);
|
FDKpushBackCache(bs, 1);
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -316,7 +324,22 @@ inline int CBlock_DecodeHuffmanWord( HANDLE_FDK_BITSTREAM bs,
|
|||||||
|
|
||||||
return val;
|
return val;
|
||||||
}
|
}
|
||||||
|
inline int CBlock_DecodeHuffmanWordCB(
|
||||||
|
HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */
|
||||||
|
const USHORT (
|
||||||
|
*CodeBook)[HuffmanEntries]) /*!< pointer to codebook description */
|
||||||
|
{
|
||||||
|
UINT index = 0;
|
||||||
|
|
||||||
//#endif /* AACDEC_HUFFMANDECODER_ENABLE */
|
while (1) {
|
||||||
|
index = CodeBook[index][FDKread2Bits(bs)]; /* Expensive memory access */
|
||||||
|
if (index & 1) break;
|
||||||
|
index >>= 2;
|
||||||
|
}
|
||||||
|
if (index & 2) {
|
||||||
|
FDKpushBackCache(bs, 1);
|
||||||
|
}
|
||||||
|
return index >> 2;
|
||||||
|
}
|
||||||
|
|
||||||
#endif /* #ifndef BLOCK_H */
|
#endif /* #ifndef BLOCK_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,70 +90,71 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description:
|
Description:
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef CHANNEL_H
|
#ifndef CHANNEL_H
|
||||||
#define CHANNEL_H
|
#define CHANNEL_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_tools_rom.h"
|
||||||
#include "channelinfo.h"
|
#include "channelinfo.h"
|
||||||
#include "tpdec_lib.h"
|
#include "tpdec_lib.h"
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Init codeBook SFB indices (section data) with HCB_ESC. Useful for bitstreams
|
* \brief Init codeBook SFB indices (section data) with HCB_ESC. Useful for
|
||||||
* which do not have any section data, but still SFB's (scale factor bands). This has
|
* bitstreams which do not have any section data, but still SFB's (scale factor
|
||||||
* the effect that upto the amount of transmitted SFB are treated as non-zero.
|
* bands). This has the effect that upto the amount of transmitted SFB are
|
||||||
* \param pAacDecoderChannelInfo channel info structure containing a valid icsInfo struct.
|
* treated as non-zero.
|
||||||
|
* \param pAacDecoderChannelInfo channel info structure containing a valid
|
||||||
|
* icsInfo struct.
|
||||||
*/
|
*/
|
||||||
void CChannel_CodebookTableInit(CAacDecoderChannelInfo *pAacDecoderChannelInfo);
|
void CChannel_CodebookTableInit(CAacDecoderChannelInfo *pAacDecoderChannelInfo);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief decode a channel element. To be called after CChannelElement_Read()
|
* \brief decode a channel element. To be called after CChannelElement_Read()
|
||||||
* \param pAacDecoderChannelInfo pointer to channel data struct. Depending on el_channels either one or two.
|
* \param pAacDecoderChannelInfo pointer to channel data struct. Depending on
|
||||||
|
* el_channels either one or two.
|
||||||
* \param pSamplingRateInfo pointer to sample rate information structure
|
* \param pSamplingRateInfo pointer to sample rate information structure
|
||||||
* \param el_channels amount of channels of the element to be decoded.
|
* \param el_channels amount of channels of the element to be decoded.
|
||||||
* \param output pointer to time domain output buffer (ACELP)
|
* \param output pointer to time domain output buffer (ACELP)
|
||||||
* \param stride factor for accessing output
|
|
||||||
*/
|
*/
|
||||||
void CChannelElement_Decode ( CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
|
void CChannelElement_Decode(
|
||||||
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2],
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2],
|
||||||
SamplingRateInfo *pSamplingRateInfo,
|
SamplingRateInfo *pSamplingRateInfo, UINT flags, UINT elFlags,
|
||||||
UINT flags,
|
|
||||||
int el_channels);
|
int el_channels);
|
||||||
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Read channel element of given type from bitstream.
|
* \brief Read channel element of given type from bitstream.
|
||||||
* \param hBs bitstream handle to access bitstream data.
|
* \param hBs bitstream handle to access bitstream data.
|
||||||
* \param pAacDecoderChannelInfo pointer array to store channel information.
|
* \param pAacDecoderChannelInfo pointer array to store channel information.
|
||||||
* \param aot Audio Object Type
|
* \param aot Audio Object Type
|
||||||
* \param pSamplingRateInfo sampling rate info table.
|
* \param pSamplingRateInfo sampling rate info table.
|
||||||
* \param flags parser guidance flags
|
* \param flags common parser guidance flags
|
||||||
* \param numberOfChannels amoun of channels contained in the object to be parsed.
|
* \param elFlags element specific parser guidance flags
|
||||||
* \param epConfig the current epConfig value obtained from the Audio Specific Config.
|
* \param numberOfChannels amoun of channels contained in the object to be
|
||||||
|
* parsed.
|
||||||
|
* \param epConfig the current epConfig value obtained from the Audio Specific
|
||||||
|
* Config.
|
||||||
* \param pTp transport decoder handle required for ADTS CRC checking.
|
* \param pTp transport decoder handle required for ADTS CRC checking.
|
||||||
* ...
|
* ...
|
||||||
* \return an AAC_DECODER_ERROR error code.
|
* \return an AAC_DECODER_ERROR error code.
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR CChannelElement_Read(HANDLE_FDK_BITSTREAM hBs,
|
AAC_DECODER_ERROR CChannelElement_Read(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
|
HANDLE_FDK_BITSTREAM hBs, CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
||||||
const AUDIO_OBJECT_TYPE aot,
|
const AUDIO_OBJECT_TYPE aot, SamplingRateInfo *pSamplingRateInfo,
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const UINT flags, const UINT elFlags, const UINT frame_length,
|
||||||
const UINT flags,
|
const UCHAR numberOfChannels, const SCHAR epConfig,
|
||||||
const UINT frame_length,
|
HANDLE_TRANSPORTDEC pTpDec);
|
||||||
const UCHAR numberOfChannels,
|
|
||||||
const SCHAR epConfig,
|
|
||||||
HANDLE_TRANSPORTDEC pTpDec
|
|
||||||
);
|
|
||||||
|
|
||||||
#endif /* #ifndef CHANNEL_H */
|
#endif /* #ifndef CHANNEL_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,27 +90,23 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: individual channel stream info
|
Description: individual channel stream info
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "channelinfo.h"
|
#include "channelinfo.h"
|
||||||
#include "aac_rom.h"
|
#include "aac_rom.h"
|
||||||
#include "aac_ram.h"
|
#include "aac_ram.h"
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
|
|
||||||
|
AAC_DECODER_ERROR IcsReadMaxSfb(HANDLE_FDK_BITSTREAM bs, CIcsInfo *pIcsInfo,
|
||||||
AAC_DECODER_ERROR IcsReadMaxSfb (
|
const SamplingRateInfo *pSamplingRateInfo) {
|
||||||
HANDLE_FDK_BITSTREAM bs,
|
|
||||||
CIcsInfo *pIcsInfo,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo
|
|
||||||
)
|
|
||||||
{
|
|
||||||
AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK;
|
AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK;
|
||||||
int nbits;
|
int nbits;
|
||||||
|
|
||||||
@ -119,26 +126,21 @@ AAC_DECODER_ERROR IcsReadMaxSfb (
|
|||||||
return ErrorStatus;
|
return ErrorStatus;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs, CIcsInfo *pIcsInfo,
|
||||||
|
|
||||||
AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs,
|
|
||||||
CIcsInfo *pIcsInfo,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo,
|
||||||
const UINT flags)
|
const UINT flags) {
|
||||||
{
|
|
||||||
AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK;
|
AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK;
|
||||||
|
|
||||||
pIcsInfo->Valid = 0;
|
pIcsInfo->Valid = 0;
|
||||||
|
|
||||||
if (flags & AC_ELD) {
|
if (flags & AC_ELD) {
|
||||||
pIcsInfo->WindowSequence = OnlyLongSequence;
|
pIcsInfo->WindowSequence = BLOCK_LONG;
|
||||||
pIcsInfo->WindowShape = 0;
|
pIcsInfo->WindowShape = 0;
|
||||||
}
|
} else {
|
||||||
else {
|
if (!(flags & (AC_USAC | AC_RSVD50 | AC_RSV603DA))) {
|
||||||
if ( !(flags & (AC_USAC|AC_RSVD50)) ) {
|
|
||||||
FDKreadBits(bs, 1);
|
FDKreadBits(bs, 1);
|
||||||
}
|
}
|
||||||
pIcsInfo->WindowSequence = (UCHAR) FDKreadBits(bs,2);
|
pIcsInfo->WindowSequence = (BLOCK_TYPE)FDKreadBits(bs, 2);
|
||||||
pIcsInfo->WindowShape = (UCHAR)FDKreadBits(bs, 1);
|
pIcsInfo->WindowShape = (UCHAR)FDKreadBits(bs, 1);
|
||||||
if (flags & AC_LD) {
|
if (flags & AC_LD) {
|
||||||
if (pIcsInfo->WindowShape) {
|
if (pIcsInfo->WindowShape) {
|
||||||
@ -148,8 +150,8 @@ AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs,
|
|||||||
}
|
}
|
||||||
|
|
||||||
/* Sanity check */
|
/* Sanity check */
|
||||||
if ( (flags & (AC_ELD|AC_LD)) && pIcsInfo->WindowSequence != OnlyLongSequence) {
|
if ((flags & (AC_ELD | AC_LD)) && pIcsInfo->WindowSequence != BLOCK_LONG) {
|
||||||
pIcsInfo->WindowSequence = OnlyLongSequence;
|
pIcsInfo->WindowSequence = BLOCK_LONG;
|
||||||
ErrorStatus = AAC_DEC_PARSE_ERROR;
|
ErrorStatus = AAC_DEC_PARSE_ERROR;
|
||||||
goto bail;
|
goto bail;
|
||||||
}
|
}
|
||||||
@ -159,9 +161,10 @@ AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs,
|
|||||||
goto bail;
|
goto bail;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (IsLongBlock(pIcsInfo))
|
if (IsLongBlock(pIcsInfo)) {
|
||||||
{
|
if (!(flags & (AC_ELD | AC_SCALABLE | AC_BSAC | AC_USAC | AC_RSVD50 |
|
||||||
if ( !(flags & (AC_ELD|AC_SCALABLE|AC_BSAC|AC_USAC|AC_RSVD50)) ) /* If not ELD nor Scalable nor BSAC nor USAC syntax then ... */
|
AC_RSV603DA))) /* If not ELD nor Scalable nor BSAC nor USAC
|
||||||
|
syntax then ... */
|
||||||
{
|
{
|
||||||
if ((UCHAR)FDKreadBits(bs, 1) != 0) /* UCHAR PredictorDataPresent */
|
if ((UCHAR)FDKreadBits(bs, 1) != 0) /* UCHAR PredictorDataPresent */
|
||||||
{
|
{
|
||||||
@ -172,9 +175,7 @@ AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs,
|
|||||||
|
|
||||||
pIcsInfo->WindowGroups = 1;
|
pIcsInfo->WindowGroups = 1;
|
||||||
pIcsInfo->WindowGroupLength[0] = 1;
|
pIcsInfo->WindowGroupLength[0] = 1;
|
||||||
}
|
} else {
|
||||||
else
|
|
||||||
{
|
|
||||||
INT i;
|
INT i;
|
||||||
UINT mask;
|
UINT mask;
|
||||||
|
|
||||||
@ -182,17 +183,13 @@ AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs,
|
|||||||
|
|
||||||
pIcsInfo->WindowGroups = 0;
|
pIcsInfo->WindowGroups = 0;
|
||||||
|
|
||||||
for (i=0; i < (8-1); i++)
|
for (i = 0; i < (8 - 1); i++) {
|
||||||
{
|
|
||||||
mask = 1 << (6 - i);
|
mask = 1 << (6 - i);
|
||||||
pIcsInfo->WindowGroupLength[i] = 1;
|
pIcsInfo->WindowGroupLength[i] = 1;
|
||||||
|
|
||||||
if (pIcsInfo->ScaleFactorGrouping & mask)
|
if (pIcsInfo->ScaleFactorGrouping & mask) {
|
||||||
{
|
|
||||||
pIcsInfo->WindowGroupLength[pIcsInfo->WindowGroups]++;
|
pIcsInfo->WindowGroupLength[pIcsInfo->WindowGroups]++;
|
||||||
}
|
} else {
|
||||||
else
|
|
||||||
{
|
|
||||||
pIcsInfo->WindowGroups++;
|
pIcsInfo->WindowGroups++;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@ -202,15 +199,12 @@ AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs,
|
|||||||
pIcsInfo->WindowGroups++;
|
pIcsInfo->WindowGroups++;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
bail:
|
bail:
|
||||||
if (ErrorStatus == AAC_DEC_OK)
|
if (ErrorStatus == AAC_DEC_OK) pIcsInfo->Valid = 1;
|
||||||
pIcsInfo->Valid = 1;
|
|
||||||
|
|
||||||
return ErrorStatus;
|
return ErrorStatus;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
interleave codebooks the following way
|
interleave codebooks the following way
|
||||||
|
|
||||||
@ -224,20 +218,34 @@ bail:
|
|||||||
(270w) (271w)
|
(270w) (271w)
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
Table entries are sorted as following:
|
Table entries are sorted as following:
|
||||||
| num_swb_long_window | sfbands_long | num_swb_short_window | sfbands_short |
|
| num_swb_long_window | sfbands_long | num_swb_short_window | sfbands_short |
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR getSamplingRateInfo(
|
AAC_DECODER_ERROR getSamplingRateInfo(SamplingRateInfo *t, UINT samplesPerFrame,
|
||||||
SamplingRateInfo *t,
|
|
||||||
UINT samplesPerFrame,
|
|
||||||
UINT samplingRateIndex,
|
UINT samplingRateIndex,
|
||||||
UINT samplingRate
|
UINT samplingRate) {
|
||||||
)
|
|
||||||
{
|
|
||||||
int index = 0;
|
int index = 0;
|
||||||
|
|
||||||
|
/* Search closest samplerate according to ISO/IEC 13818-7:2005(E) 8.2.4 (Table
|
||||||
|
* 38): */
|
||||||
|
if ((samplingRateIndex >= 15) || (samplesPerFrame == 768)) {
|
||||||
|
const UINT borders[] = {(UINT)-1, 92017, 75132, 55426, 46009, 37566,
|
||||||
|
27713, 23004, 18783, 13856, 11502, 9391};
|
||||||
|
UINT i, samplingRateSearch = samplingRate;
|
||||||
|
|
||||||
|
if (samplesPerFrame == 768) {
|
||||||
|
samplingRateSearch = (samplingRate * 4) / 3;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < 11; i++) {
|
||||||
|
if (borders[i] > samplingRateSearch &&
|
||||||
|
samplingRateSearch >= borders[i + 1]) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
samplingRateIndex = i;
|
||||||
|
}
|
||||||
|
|
||||||
t->samplingRateIndex = samplingRateIndex;
|
t->samplingRateIndex = samplingRateIndex;
|
||||||
t->samplingRate = samplingRate;
|
t->samplingRate = samplingRate;
|
||||||
@ -249,6 +257,9 @@ AAC_DECODER_ERROR getSamplingRateInfo(
|
|||||||
case 960:
|
case 960:
|
||||||
index = 1;
|
index = 1;
|
||||||
break;
|
break;
|
||||||
|
case 768:
|
||||||
|
index = 2;
|
||||||
|
break;
|
||||||
case 512:
|
case 512:
|
||||||
index = 3;
|
index = 3;
|
||||||
break;
|
break;
|
||||||
@ -260,17 +271,27 @@ AAC_DECODER_ERROR getSamplingRateInfo(
|
|||||||
return AAC_DEC_UNSUPPORTED_FORMAT;
|
return AAC_DEC_UNSUPPORTED_FORMAT;
|
||||||
}
|
}
|
||||||
|
|
||||||
t->ScaleFactorBands_Long = sfbOffsetTables[index][samplingRateIndex].sfbOffsetLong;
|
t->ScaleFactorBands_Long =
|
||||||
t->ScaleFactorBands_Short = sfbOffsetTables[index][samplingRateIndex].sfbOffsetShort;
|
sfbOffsetTables[index][samplingRateIndex].sfbOffsetLong;
|
||||||
t->NumberOfScaleFactorBands_Long = sfbOffsetTables[index][samplingRateIndex].numberOfSfbLong;
|
t->ScaleFactorBands_Short =
|
||||||
t->NumberOfScaleFactorBands_Short = sfbOffsetTables[index][samplingRateIndex].numberOfSfbShort;
|
sfbOffsetTables[index][samplingRateIndex].sfbOffsetShort;
|
||||||
|
t->NumberOfScaleFactorBands_Long =
|
||||||
|
sfbOffsetTables[index][samplingRateIndex].numberOfSfbLong;
|
||||||
|
t->NumberOfScaleFactorBands_Short =
|
||||||
|
sfbOffsetTables[index][samplingRateIndex].numberOfSfbShort;
|
||||||
|
|
||||||
if (t->ScaleFactorBands_Long == NULL || t->NumberOfScaleFactorBands_Long == 0) {
|
if (t->ScaleFactorBands_Long == NULL ||
|
||||||
|
t->NumberOfScaleFactorBands_Long == 0) {
|
||||||
|
t->samplingRate = 0;
|
||||||
return AAC_DEC_UNSUPPORTED_FORMAT;
|
return AAC_DEC_UNSUPPORTED_FORMAT;
|
||||||
}
|
}
|
||||||
|
|
||||||
FDK_ASSERT(t->ScaleFactorBands_Long[t->NumberOfScaleFactorBands_Long] == samplesPerFrame);
|
FDK_ASSERT((UINT)t->ScaleFactorBands_Long[t->NumberOfScaleFactorBands_Long] ==
|
||||||
FDK_ASSERT(t->ScaleFactorBands_Short == NULL || t->ScaleFactorBands_Short[t->NumberOfScaleFactorBands_Short]*8 == samplesPerFrame);
|
samplesPerFrame);
|
||||||
|
FDK_ASSERT(
|
||||||
|
t->ScaleFactorBands_Short == NULL ||
|
||||||
|
(UINT)t->ScaleFactorBands_Short[t->NumberOfScaleFactorBands_Short] * 8 ==
|
||||||
|
samplesPerFrame);
|
||||||
|
|
||||||
return AAC_DEC_OK;
|
return AAC_DEC_OK;
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: individual channel stream info
|
Description: individual channel stream info
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef CHANNELINFO_H
|
#ifndef CHANNELINFO_H
|
||||||
#define CHANNELINFO_H
|
#define CHANNELINFO_H
|
||||||
@ -108,11 +120,22 @@ amm-info@iis.fraunhofer.de
|
|||||||
#include "aacdec_hcr_types.h"
|
#include "aacdec_hcr_types.h"
|
||||||
#include "rvlc_info.h"
|
#include "rvlc_info.h"
|
||||||
|
|
||||||
|
#include "usacdec_acelp.h"
|
||||||
|
#include "usacdec_const.h"
|
||||||
|
#include "usacdec_rom.h"
|
||||||
|
|
||||||
|
#include "ac_arith_coder.h"
|
||||||
|
|
||||||
#include "conceal_types.h"
|
#include "conceal_types.h"
|
||||||
|
|
||||||
#include "aacdec_drc_types.h"
|
#include "aacdec_drc_types.h"
|
||||||
|
|
||||||
|
#define WB_SECTION_SIZE (1024 * 2)
|
||||||
|
|
||||||
|
#define DRM_BS_BUFFER_SIZE \
|
||||||
|
(512) /* size of the dynamic buffer which is used to reverse the bits of \
|
||||||
|
the DRM SBR payload */
|
||||||
|
|
||||||
/* Output rendering mode */
|
/* Output rendering mode */
|
||||||
typedef enum {
|
typedef enum {
|
||||||
AACDEC_RENDER_INVALID = 0,
|
AACDEC_RENDER_INVALID = 0,
|
||||||
@ -122,21 +145,11 @@ typedef enum {
|
|||||||
AACDEC_RENDER_INTIMDCT
|
AACDEC_RENDER_INTIMDCT
|
||||||
} AACDEC_RENDER_MODE;
|
} AACDEC_RENDER_MODE;
|
||||||
|
|
||||||
enum {
|
enum { MAX_QUANTIZED_VALUE = 8191 };
|
||||||
MAX_QUANTIZED_VALUE = 8191
|
|
||||||
};
|
|
||||||
|
|
||||||
enum
|
typedef enum { FD_LONG, FD_SHORT, LPD } USAC_COREMODE;
|
||||||
{
|
|
||||||
OnlyLongSequence = 0,
|
|
||||||
LongStartSequence,
|
|
||||||
EightShortSequence,
|
|
||||||
LongStopSequence
|
|
||||||
};
|
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
typedef struct
|
|
||||||
{
|
|
||||||
const SHORT *ScaleFactorBands_Long;
|
const SHORT *ScaleFactorBands_Long;
|
||||||
const SHORT *ScaleFactorBands_Short;
|
const SHORT *ScaleFactorBands_Short;
|
||||||
UCHAR NumberOfScaleFactorBands_Long;
|
UCHAR NumberOfScaleFactorBands_Long;
|
||||||
@ -145,31 +158,28 @@ typedef struct
|
|||||||
UINT samplingRate;
|
UINT samplingRate;
|
||||||
} SamplingRateInfo;
|
} SamplingRateInfo;
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
UCHAR CommonWindow;
|
UCHAR CommonWindow;
|
||||||
UCHAR GlobalGain;
|
UCHAR GlobalGain;
|
||||||
|
|
||||||
} CRawDataInfo;
|
} CRawDataInfo;
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
UCHAR WindowGroupLength[8];
|
UCHAR WindowGroupLength[8];
|
||||||
UCHAR WindowGroups;
|
UCHAR WindowGroups;
|
||||||
UCHAR Valid;
|
UCHAR Valid;
|
||||||
|
|
||||||
UCHAR WindowShape; /* 0: sine window, 1: KBD, 2: low overlap */
|
UCHAR WindowShape; /* 0: sine window, 1: KBD, 2: low overlap */
|
||||||
UCHAR WindowSequence; /* See enum above, 0: long, 1: start, 2: short, 3: stop */
|
BLOCK_TYPE WindowSequence; /* mdct.h; 0: long, 1: start, 2: short, 3: stop */
|
||||||
UCHAR MaxSfBands;
|
UCHAR MaxSfBands;
|
||||||
|
UCHAR max_sfb_ste;
|
||||||
UCHAR ScaleFactorGrouping;
|
UCHAR ScaleFactorGrouping;
|
||||||
|
|
||||||
UCHAR TotalSfBands;
|
UCHAR TotalSfBands;
|
||||||
|
|
||||||
} CIcsInfo;
|
} CIcsInfo;
|
||||||
|
|
||||||
|
enum {
|
||||||
enum
|
|
||||||
{
|
|
||||||
ZERO_HCB = 0,
|
ZERO_HCB = 0,
|
||||||
ESCBOOK = 11,
|
ESCBOOK = 11,
|
||||||
NSPECBOOKS = ESCBOOK + 1,
|
NSPECBOOKS = ESCBOOK + 1,
|
||||||
@ -180,69 +190,137 @@ enum
|
|||||||
LAST_HCB
|
LAST_HCB
|
||||||
};
|
};
|
||||||
|
|
||||||
#define TNS_SCALE 3
|
/* This struct holds the persistent data shared by both channels of a CPE.
|
||||||
|
It needs to be allocated for each CPE. */
|
||||||
|
typedef struct {
|
||||||
|
CJointStereoPersistentData jointStereoPersistentData;
|
||||||
|
} CpePersistentData;
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* This struct must be allocated one for every channel and must be persistent.
|
* This struct must be allocated one for every channel and must be persistent.
|
||||||
*/
|
*/
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
FIXP_DBL *pOverlapBuffer;
|
FIXP_DBL *pOverlapBuffer;
|
||||||
mdct_t IMdct;
|
mdct_t IMdct;
|
||||||
|
|
||||||
|
CArcoData *hArCo;
|
||||||
|
|
||||||
|
INT pnsCurrentSeed;
|
||||||
|
|
||||||
|
/* LPD memory */
|
||||||
|
FIXP_DBL old_synth[PIT_MAX_MAX - L_SUBFR];
|
||||||
|
INT old_T_pf[SYN_SFD];
|
||||||
|
FIXP_DBL old_gain_pf[SYN_SFD];
|
||||||
|
FIXP_DBL mem_bpf[L_FILT + L_SUBFR];
|
||||||
|
UCHAR
|
||||||
|
old_bpf_control_info; /* (1: enable, 0: disable) bpf for past superframe
|
||||||
|
*/
|
||||||
|
|
||||||
|
USAC_COREMODE last_core_mode; /* core mode used by the decoder in previous
|
||||||
|
frame. (not signalled by the bitstream, see
|
||||||
|
CAacDecoderChannelInfo::core_mode_last !! )
|
||||||
|
*/
|
||||||
|
UCHAR last_lpd_mode; /* LPD mode used by the decoder in last LPD subframe
|
||||||
|
(not signalled by the bitstream, see
|
||||||
|
CAacDecoderChannelInfo::lpd_mode_last !! ) */
|
||||||
|
UCHAR last_last_lpd_mode; /* LPD mode used in second last LPD subframe
|
||||||
|
(not signalled by the bitstream) */
|
||||||
|
UCHAR last_lpc_lost; /* Flag indicating that the previous LPC is lost */
|
||||||
|
|
||||||
|
FIXP_LPC
|
||||||
|
lpc4_lsf[M_LP_FILTER_ORDER]; /* Last LPC4 coefficients in LSF domain. */
|
||||||
|
FIXP_LPC lsf_adaptive_mean[M_LP_FILTER_ORDER]; /* Adaptive mean of LPC
|
||||||
|
coefficients in LSF domain
|
||||||
|
for concealment. */
|
||||||
|
FIXP_LPC lp_coeff_old[2][M_LP_FILTER_ORDER]; /* Last LPC coefficients in LP
|
||||||
|
domain. lp_coeff_old[0] is lpc4 (coeffs for
|
||||||
|
right folding point of last tcx frame),
|
||||||
|
lp_coeff_old[1] are coeffs for left folding
|
||||||
|
point of last tcx frame */
|
||||||
|
INT lp_coeff_old_exp[2];
|
||||||
|
|
||||||
|
FIXP_SGL
|
||||||
|
oldStability; /* LPC coeff stability value from last frame (required for
|
||||||
|
TCX concealment). */
|
||||||
|
UINT numLostLpdFrames; /* Number of consecutive lost subframes. */
|
||||||
|
|
||||||
|
/* TCX memory */
|
||||||
|
FIXP_DBL last_tcx_gain;
|
||||||
|
INT last_tcx_gain_e;
|
||||||
|
FIXP_DBL last_alfd_gains[32]; /* Scaled by one bit. */
|
||||||
|
SHORT last_tcx_pitch;
|
||||||
|
UCHAR last_tcx_noise_factor;
|
||||||
|
|
||||||
|
/* ACELP memory */
|
||||||
|
CAcelpStaticMem acelp;
|
||||||
|
|
||||||
|
ULONG nfRandomSeed; /* seed value for USAC noise filling random generator */
|
||||||
|
|
||||||
CDrcChannelData drcData;
|
CDrcChannelData drcData;
|
||||||
CConcealmentInfo concealmentInfo;
|
CConcealmentInfo concealmentInfo;
|
||||||
|
|
||||||
} CAacDecoderStaticChannelInfo;
|
CpePersistentData *pCpeStaticData;
|
||||||
|
|
||||||
|
} CAacDecoderStaticChannelInfo;
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* This union must be allocated for every element (up to 2 channels).
|
* This union must be allocated for every element (up to 2 channels).
|
||||||
*/
|
*/
|
||||||
typedef struct {
|
typedef struct {
|
||||||
|
|
||||||
/* Common bit stream data */
|
/* Common bit stream data */
|
||||||
SHORT aScaleFactor[(8*16)]; /* Spectral scale factors for each sfb in each window. */
|
SHORT aScaleFactor[(
|
||||||
|
8 * 16)]; /* Spectral scale factors for each sfb in each window. */
|
||||||
SHORT aSfbScale[(8 * 16)]; /* could be free after ApplyTools() */
|
SHORT aSfbScale[(8 * 16)]; /* could be free after ApplyTools() */
|
||||||
UCHAR aCodeBook[(8*16)]; /* section data: codebook for each window and sfb. */
|
UCHAR
|
||||||
|
aCodeBook[(8 * 16)]; /* section data: codebook for each window and sfb. */
|
||||||
|
UCHAR band_is_noise[(8 * 16)];
|
||||||
CTnsData TnsData;
|
CTnsData TnsData;
|
||||||
CRawDataInfo RawDataInfo;
|
CRawDataInfo RawDataInfo;
|
||||||
|
|
||||||
shouldBeUnion {
|
shouldBeUnion {
|
||||||
|
|
||||||
struct {
|
struct {
|
||||||
CPulseData PulseData;
|
CPulseData PulseData;
|
||||||
SHORT aNumLineInSec4Hcr[MAX_SFB_HCR]; /* needed once for all channels except for Drm syntax */
|
SHORT aNumLineInSec4Hcr[MAX_SFB_HCR]; /* needed once for all channels
|
||||||
UCHAR aCodeBooks4Hcr[MAX_SFB_HCR]; /* needed once for all channels except for Drm syntax. Same as "aCodeBook" ? */
|
except for Drm syntax */
|
||||||
|
UCHAR
|
||||||
|
aCodeBooks4Hcr[MAX_SFB_HCR]; /* needed once for all channels except for
|
||||||
|
Drm syntax. Same as "aCodeBook" ? */
|
||||||
SHORT lenOfReorderedSpectralData;
|
SHORT lenOfReorderedSpectralData;
|
||||||
SCHAR lenOfLongestCodeword;
|
SCHAR lenOfLongestCodeword;
|
||||||
SCHAR numberSection;
|
SCHAR numberSection;
|
||||||
SCHAR rvlcCurrentScaleFactorOK;
|
SCHAR rvlcCurrentScaleFactorOK;
|
||||||
SCHAR rvlcIntensityUsed;
|
SCHAR rvlcIntensityUsed;
|
||||||
} aac;
|
} aac;
|
||||||
} specificTo;
|
struct {
|
||||||
|
UCHAR fd_noise_level_and_offset;
|
||||||
|
UCHAR tns_active;
|
||||||
|
UCHAR tns_on_lr;
|
||||||
|
UCHAR tcx_noise_factor[4];
|
||||||
|
UCHAR tcx_global_gain[4];
|
||||||
|
} usac;
|
||||||
|
}
|
||||||
|
specificTo;
|
||||||
|
|
||||||
} CAacDecoderDynamicData;
|
} CAacDecoderDynamicData;
|
||||||
|
|
||||||
typedef shouldBeUnion {
|
typedef shouldBeUnion {
|
||||||
CAacDecoderDynamicData pAacDecoderDynamicData[2];
|
UCHAR DrmBsBuffer[DRM_BS_BUFFER_SIZE];
|
||||||
|
|
||||||
/* Common signal data, can be used once the bit stream data from above is not used anymore. */
|
/* Common signal data, can be used once the bit stream data from above is not
|
||||||
|
* used anymore. */
|
||||||
FIXP_DBL mdctOutTemp[1024];
|
FIXP_DBL mdctOutTemp[1024];
|
||||||
FIXP_DBL sbrWorkBuffer[1024*2];
|
|
||||||
|
|
||||||
} CWorkBufferCore1;
|
FIXP_DBL synth_buf[(PIT_MAX_MAX + SYN_DELAY + L_FRAME_PLUS)];
|
||||||
|
|
||||||
|
FIXP_DBL workBuffer[WB_SECTION_SIZE];
|
||||||
|
}
|
||||||
|
CWorkBufferCore1;
|
||||||
|
|
||||||
/* Common data referenced by all channels */
|
/* Common data referenced by all channels */
|
||||||
typedef struct {
|
typedef struct {
|
||||||
|
CAacDecoderDynamicData pAacDecoderDynamicData[2];
|
||||||
CWorkBufferCore1 *workBufferCore1;
|
|
||||||
FIXP_DBL* workBufferCore2;
|
|
||||||
|
|
||||||
CPnsInterChannelData pnsInterChannelData;
|
CPnsInterChannelData pnsInterChannelData;
|
||||||
INT pnsCurrentSeed;
|
|
||||||
INT pnsRandomSeed[(8 * 16)];
|
INT pnsRandomSeed[(8 * 16)];
|
||||||
|
|
||||||
CJointStereoData jointStereoData; /* One for one element */
|
CJointStereoData jointStereoData; /* One for one element */
|
||||||
@ -255,22 +333,73 @@ typedef struct {
|
|||||||
SHORT aRvlcScfFwd[RVLC_MAX_SFB]; /* needed once for all channels */
|
SHORT aRvlcScfFwd[RVLC_MAX_SFB]; /* needed once for all channels */
|
||||||
SHORT aRvlcScfBwd[RVLC_MAX_SFB]; /* needed once for all channels */
|
SHORT aRvlcScfBwd[RVLC_MAX_SFB]; /* needed once for all channels */
|
||||||
} aac;
|
} aac;
|
||||||
|
}
|
||||||
} overlay;
|
overlay;
|
||||||
|
|
||||||
} CAacDecoderCommonData;
|
} CAacDecoderCommonData;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
CWorkBufferCore1 *pWorkBufferCore1;
|
||||||
|
CCplxPredictionData *cplxPredictionData;
|
||||||
|
} CAacDecoderCommonStaticData;
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* This struct must be allocated one for every channels of every element and must be persistent.
|
* This struct must be allocated one for every channel of every element and must
|
||||||
* Among its members, the following memory areas can be overwritten under the given conditions:
|
* be persistent. Among its members, the following memory areas can be
|
||||||
* - pSpectralCoefficient The memory pointed to can be overwritten after time signal rendering.
|
* overwritten under the given conditions:
|
||||||
|
* - pSpectralCoefficient The memory pointed to can be overwritten after time
|
||||||
|
* signal rendering.
|
||||||
* - data can be overwritten after time signal rendering.
|
* - data can be overwritten after time signal rendering.
|
||||||
* - pDynData memory pointed to can be overwritten after each CChannelElement_Decode() call.
|
* - pDynData memory pointed to can be overwritten after each
|
||||||
* - pComData->overlay memory pointed to can be overwritten after each CChannelElement_Decode() call..
|
* CChannelElement_Decode() call.
|
||||||
|
* - pComData->overlay memory pointed to can be overwritten after each
|
||||||
|
* CChannelElement_Decode() call..
|
||||||
*/
|
*/
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
shouldBeUnion {
|
||||||
|
struct {
|
||||||
|
FIXP_DBL fac_data0[LFAC];
|
||||||
|
UCHAR fac_data_e[4];
|
||||||
|
FIXP_DBL
|
||||||
|
*fac_data[4]; /* Pointers to unused parts of pSpectralCoefficient */
|
||||||
|
|
||||||
|
UCHAR core_mode; /* current core mode */
|
||||||
|
USAC_COREMODE
|
||||||
|
core_mode_last; /* previous core mode, signalled in the bitstream
|
||||||
|
(not done by the decoder, see
|
||||||
|
CAacDecoderStaticChannelInfo::last_core_mode !!)*/
|
||||||
|
UCHAR lpd_mode_last; /* previous LPD mode, signalled in the bitstream
|
||||||
|
(not done by the decoder, see
|
||||||
|
CAacDecoderStaticChannelInfo::last_core_mode !!)*/
|
||||||
|
UCHAR mod[4];
|
||||||
|
UCHAR bpf_control_info; /* (1: enable, 0: disable) bpf for current
|
||||||
|
superframe */
|
||||||
|
|
||||||
|
FIXP_LPC lsp_coeff[5][M_LP_FILTER_ORDER]; /* linear prediction
|
||||||
|
coefficients in LSP domain */
|
||||||
|
FIXP_LPC
|
||||||
|
lp_coeff[5][M_LP_FILTER_ORDER]; /* linear prediction coefficients in
|
||||||
|
LP domain */
|
||||||
|
INT lp_coeff_exp[5];
|
||||||
|
FIXP_LPC lsf_adaptive_mean_cand
|
||||||
|
[M_LP_FILTER_ORDER]; /* concealment: is copied to
|
||||||
|
CAacDecoderStaticChannelInfo->lsf_adaptive_mean once frame is
|
||||||
|
assumed to be correct*/
|
||||||
|
FIXP_SGL aStability[4]; /* LPC coeff stability values required for ACELP
|
||||||
|
and TCX (concealment) */
|
||||||
|
|
||||||
|
CAcelpChannelData acelp[4];
|
||||||
|
|
||||||
|
FIXP_DBL tcx_gain[4];
|
||||||
|
SCHAR tcx_gain_e[4];
|
||||||
|
} usac;
|
||||||
|
|
||||||
|
struct {
|
||||||
|
CPnsData PnsData; /* Not required for USAC */
|
||||||
|
} aac;
|
||||||
|
}
|
||||||
|
data;
|
||||||
|
|
||||||
SPECTRAL_PTR pSpectralCoefficient; /* Spectral coefficients of each window */
|
SPECTRAL_PTR pSpectralCoefficient; /* Spectral coefficients of each window */
|
||||||
SHORT specScale[8]; /* Scale shift values of each spectrum window */
|
SHORT specScale[8]; /* Scale shift values of each spectrum window */
|
||||||
CIcsInfo icsInfo;
|
CIcsInfo icsInfo;
|
||||||
@ -279,43 +408,38 @@ typedef struct
|
|||||||
|
|
||||||
AACDEC_RENDER_MODE renderMode; /* Output signal rendering mode */
|
AACDEC_RENDER_MODE renderMode; /* Output signal rendering mode */
|
||||||
|
|
||||||
shouldBeUnion {
|
CAacDecoderDynamicData *
|
||||||
struct {
|
pDynData; /* Data required for one element and discarded after decoding */
|
||||||
CPnsData PnsData; /* Not required for USAC */
|
CAacDecoderCommonData
|
||||||
} aac;
|
*pComData; /* Data required for one channel at a time during decode */
|
||||||
|
CAacDecoderCommonStaticData *pComStaticData; /* Persistent data required for
|
||||||
|
one channel at a time during
|
||||||
|
decode */
|
||||||
|
|
||||||
struct {
|
int currAliasingSymmetry; /* required for RSVD60 MCT */
|
||||||
} usac;
|
|
||||||
} data;
|
|
||||||
|
|
||||||
CAacDecoderDynamicData *pDynData; /* Data required for one element and discarded after decoding */
|
|
||||||
CAacDecoderCommonData *pComData; /* Data required for one channel at a time during decode */
|
|
||||||
|
|
||||||
} CAacDecoderChannelInfo;
|
} CAacDecoderChannelInfo;
|
||||||
|
|
||||||
/* channelinfo.cpp */
|
/* channelinfo.cpp */
|
||||||
|
|
||||||
AAC_DECODER_ERROR getSamplingRateInfo(SamplingRateInfo *t, UINT samplesPerFrame, UINT samplingRateIndex, UINT samplingRate);
|
AAC_DECODER_ERROR getSamplingRateInfo(SamplingRateInfo *t, UINT samplesPerFrame,
|
||||||
|
UINT samplingRateIndex,
|
||||||
|
UINT samplingRate);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Read max SFB from bit stream and assign TotalSfBands according
|
* \brief Read max SFB from bit stream and assign TotalSfBands according
|
||||||
* to the window sequence and sample rate.
|
* to the window sequence and sample rate.
|
||||||
* \param hBs bit stream handle as data source
|
* \param hBs bit stream handle as data source
|
||||||
* \param pIcsInfo IcsInfo structure to read the window sequence and store MaxSfBands and TotalSfBands
|
* \param pIcsInfo IcsInfo structure to read the window sequence and store
|
||||||
|
* MaxSfBands and TotalSfBands
|
||||||
* \param pSamplingRateInfo read only
|
* \param pSamplingRateInfo read only
|
||||||
*/
|
*/
|
||||||
AAC_DECODER_ERROR IcsReadMaxSfb (
|
AAC_DECODER_ERROR IcsReadMaxSfb(HANDLE_FDK_BITSTREAM hBs, CIcsInfo *pIcsInfo,
|
||||||
HANDLE_FDK_BITSTREAM hBs,
|
const SamplingRateInfo *pSamplingRateInfo);
|
||||||
CIcsInfo *pIcsInfo,
|
|
||||||
const SamplingRateInfo *pSamplingRateInfo
|
|
||||||
);
|
|
||||||
|
|
||||||
AAC_DECODER_ERROR IcsRead(
|
AAC_DECODER_ERROR IcsRead(HANDLE_FDK_BITSTREAM bs, CIcsInfo *pIcsInfo,
|
||||||
HANDLE_FDK_BITSTREAM bs,
|
|
||||||
CIcsInfo *pIcsInfo,
|
|
||||||
const SamplingRateInfo *SamplingRateInfoTable,
|
const SamplingRateInfo *SamplingRateInfoTable,
|
||||||
const UINT flags
|
const UINT flags);
|
||||||
);
|
|
||||||
|
|
||||||
/* stereo.cpp, only called from this file */
|
/* stereo.cpp, only called from this file */
|
||||||
|
|
||||||
@ -328,17 +452,21 @@ AAC_DECODER_ERROR IcsRead(
|
|||||||
\param pScaleFactorBandOffsets pointer to scalefactor band offsets.
|
\param pScaleFactorBandOffsets pointer to scalefactor band offsets.
|
||||||
\param pWindowGroupLength pointer to window group length array.
|
\param pWindowGroupLength pointer to window group length array.
|
||||||
\param windowGroups number of window groups.
|
\param windowGroups number of window groups.
|
||||||
\param scaleFactorBandsTransmittedL number of transmitted scalefactor bands in left channel.
|
\param scaleFactorBandsTransmittedL number of transmitted scalefactor bands in
|
||||||
\param scaleFactorBandsTransmittedR number of transmitted scalefactor bands in right channel.
|
left channel. \param scaleFactorBandsTransmittedR number of transmitted
|
||||||
May differ from scaleFactorBandsTransmittedL only for USAC.
|
scalefactor bands in right channel. May differ from
|
||||||
\return none
|
scaleFactorBandsTransmittedL only for USAC. \return none
|
||||||
*/
|
*/
|
||||||
void CJointStereo_ApplyMS(CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
|
void CJointStereo_ApplyMS(
|
||||||
const short *pScaleFactorBandOffsets,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
|
||||||
const UCHAR *pWindowGroupLength,
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[2],
|
||||||
const int windowGroups,
|
FIXP_DBL *spectrumL, FIXP_DBL *spectrumR, SHORT *SFBleftScale,
|
||||||
|
SHORT *SFBrightScale, SHORT *specScaleL, SHORT *specScaleR,
|
||||||
|
const SHORT *pScaleFactorBandOffsets, const UCHAR *pWindowGroupLength,
|
||||||
|
const int windowGroups, const int max_sfb_ste_outside,
|
||||||
const int scaleFactorBandsTransmittedL,
|
const int scaleFactorBandsTransmittedL,
|
||||||
const int scaleFactorBandsTransmittedR);
|
const int scaleFactorBandsTransmittedR, FIXP_DBL *store_dmx_re_prev,
|
||||||
|
SHORT *store_dmx_re_prev_e, const int mainband_flag);
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\brief Applies intensity stereo
|
\brief Applies intensity stereo
|
||||||
@ -360,91 +488,79 @@ void CJointStereo_ApplyIS(CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
|
|||||||
const int scaleFactorBandsTransmitted,
|
const int scaleFactorBandsTransmitted,
|
||||||
const UINT CommonWindow);
|
const UINT CommonWindow);
|
||||||
|
|
||||||
|
|
||||||
/* aacdec_pns.cpp */
|
/* aacdec_pns.cpp */
|
||||||
int CPns_IsPnsUsed (const CPnsData *pPnsData,
|
int CPns_IsPnsUsed(const CPnsData *pPnsData, const int group, const int band);
|
||||||
const int group,
|
|
||||||
const int band);
|
|
||||||
|
|
||||||
void CPns_SetCorrelation(CPnsData *pPnsData,
|
void CPns_SetCorrelation(CPnsData *pPnsData, const int group, const int band,
|
||||||
const int group,
|
|
||||||
const int band,
|
|
||||||
const int outofphase);
|
const int outofphase);
|
||||||
|
|
||||||
/****************** inline functions ******************/
|
/****************** inline functions ******************/
|
||||||
|
|
||||||
inline UCHAR IsValid(const CIcsInfo *pIcsInfo)
|
inline UCHAR IsValid(const CIcsInfo *pIcsInfo) { return pIcsInfo->Valid; }
|
||||||
{
|
|
||||||
return pIcsInfo->Valid;
|
inline UCHAR IsLongBlock(const CIcsInfo *pIcsInfo) {
|
||||||
|
return (pIcsInfo->WindowSequence != BLOCK_SHORT);
|
||||||
}
|
}
|
||||||
|
|
||||||
inline UCHAR IsLongBlock(const CIcsInfo *pIcsInfo)
|
inline UCHAR GetWindowShape(const CIcsInfo *pIcsInfo) {
|
||||||
{
|
|
||||||
return (pIcsInfo->WindowSequence != EightShortSequence);
|
|
||||||
}
|
|
||||||
|
|
||||||
inline UCHAR GetWindowShape(const CIcsInfo *pIcsInfo)
|
|
||||||
{
|
|
||||||
return pIcsInfo->WindowShape;
|
return pIcsInfo->WindowShape;
|
||||||
}
|
}
|
||||||
|
|
||||||
inline UCHAR GetWindowSequence(const CIcsInfo *pIcsInfo)
|
inline BLOCK_TYPE GetWindowSequence(const CIcsInfo *pIcsInfo) {
|
||||||
{
|
|
||||||
return pIcsInfo->WindowSequence;
|
return pIcsInfo->WindowSequence;
|
||||||
}
|
}
|
||||||
|
|
||||||
inline const SHORT *GetScaleFactorBandOffsets(const CIcsInfo *pIcsInfo, const SamplingRateInfo* samplingRateInfo)
|
inline const SHORT *GetScaleFactorBandOffsets(
|
||||||
{
|
const CIcsInfo *pIcsInfo, const SamplingRateInfo *samplingRateInfo) {
|
||||||
if (IsLongBlock(pIcsInfo))
|
if (IsLongBlock(pIcsInfo)) {
|
||||||
{
|
|
||||||
return samplingRateInfo->ScaleFactorBands_Long;
|
return samplingRateInfo->ScaleFactorBands_Long;
|
||||||
}
|
} else {
|
||||||
else
|
|
||||||
{
|
|
||||||
return samplingRateInfo->ScaleFactorBands_Short;
|
return samplingRateInfo->ScaleFactorBands_Short;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
inline int GetWindowsPerFrame(const CIcsInfo *pIcsInfo)
|
inline UCHAR GetNumberOfScaleFactorBands(
|
||||||
{
|
const CIcsInfo *pIcsInfo, const SamplingRateInfo *samplingRateInfo) {
|
||||||
return (pIcsInfo->WindowSequence == EightShortSequence) ? 8 : 1;
|
if (IsLongBlock(pIcsInfo)) {
|
||||||
|
return samplingRateInfo->NumberOfScaleFactorBands_Long;
|
||||||
|
} else {
|
||||||
|
return samplingRateInfo->NumberOfScaleFactorBands_Short;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
inline UCHAR GetWindowGroups(const CIcsInfo *pIcsInfo)
|
inline int GetWindowsPerFrame(const CIcsInfo *pIcsInfo) {
|
||||||
{
|
return (pIcsInfo->WindowSequence == BLOCK_SHORT) ? 8 : 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
inline UCHAR GetWindowGroups(const CIcsInfo *pIcsInfo) {
|
||||||
return pIcsInfo->WindowGroups;
|
return pIcsInfo->WindowGroups;
|
||||||
}
|
}
|
||||||
|
|
||||||
inline UCHAR GetWindowGroupLength(const CIcsInfo *pIcsInfo, const INT index)
|
inline UCHAR GetWindowGroupLength(const CIcsInfo *pIcsInfo, const INT index) {
|
||||||
{
|
|
||||||
return pIcsInfo->WindowGroupLength[index];
|
return pIcsInfo->WindowGroupLength[index];
|
||||||
}
|
}
|
||||||
|
|
||||||
inline const UCHAR *GetWindowGroupLengthTable(const CIcsInfo *pIcsInfo)
|
inline const UCHAR *GetWindowGroupLengthTable(const CIcsInfo *pIcsInfo) {
|
||||||
{
|
|
||||||
return pIcsInfo->WindowGroupLength;
|
return pIcsInfo->WindowGroupLength;
|
||||||
}
|
}
|
||||||
|
|
||||||
inline UCHAR GetScaleFactorBandsTransmitted(const CIcsInfo *pIcsInfo)
|
inline UCHAR GetScaleFactorBandsTransmitted(const CIcsInfo *pIcsInfo) {
|
||||||
{
|
|
||||||
return pIcsInfo->MaxSfBands;
|
return pIcsInfo->MaxSfBands;
|
||||||
}
|
}
|
||||||
|
|
||||||
inline UCHAR GetScaleMaxFactorBandsTransmitted(const CIcsInfo *pIcsInfo0, const CIcsInfo *pIcsInfo1)
|
inline UCHAR GetScaleMaxFactorBandsTransmitted(const CIcsInfo *pIcsInfo0,
|
||||||
{
|
const CIcsInfo *pIcsInfo1) {
|
||||||
return fMax(pIcsInfo0->MaxSfBands, pIcsInfo1->MaxSfBands);
|
return fMax(pIcsInfo0->MaxSfBands, pIcsInfo1->MaxSfBands);
|
||||||
}
|
}
|
||||||
|
|
||||||
inline UCHAR GetScaleFactorBandsTotal(const CIcsInfo *pIcsInfo)
|
inline UCHAR GetScaleFactorBandsTotal(const CIcsInfo *pIcsInfo) {
|
||||||
{
|
|
||||||
return pIcsInfo->TotalSfBands;
|
return pIcsInfo->TotalSfBands;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Note: This function applies to AAC-LC only ! */
|
/* Note: This function applies to AAC-LC only ! */
|
||||||
inline UCHAR GetMaximumTnsBands(const CIcsInfo *pIcsInfo, const int samplingRateIndex)
|
inline UCHAR GetMaximumTnsBands(const CIcsInfo *pIcsInfo,
|
||||||
{
|
const int samplingRateIndex) {
|
||||||
return tns_max_bands_tbl[samplingRateIndex][!IsLongBlock(pIcsInfo)];
|
return tns_max_bands_tbl[samplingRateIndex][!IsLongBlock(pIcsInfo)];
|
||||||
}
|
}
|
||||||
|
|
||||||
#endif /* #ifndef CHANNELINFO_H */
|
#endif /* #ifndef CHANNELINFO_H */
|
||||||
|
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,19 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: independent channel concealment
|
Description: independent channel concealment
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef _CONCEAL_H_
|
#ifndef CONCEAL_H
|
||||||
#define _CONCEAL_H_
|
#define CONCEAL_H
|
||||||
|
|
||||||
#include "aacdecoder_lib.h"
|
|
||||||
|
|
||||||
#include "channelinfo.h"
|
#include "channelinfo.h"
|
||||||
|
|
||||||
@ -101,48 +111,42 @@ void CConcealment_InitCommonData (CConcealParams *pConcealCommonData);
|
|||||||
|
|
||||||
void CConcealment_InitChannelData(CConcealmentInfo *hConcealmentInfo,
|
void CConcealment_InitChannelData(CConcealmentInfo *hConcealmentInfo,
|
||||||
CConcealParams *pConcealCommonData,
|
CConcealParams *pConcealCommonData,
|
||||||
|
AACDEC_RENDER_MODE initRenderMode,
|
||||||
int samplesPerFrame);
|
int samplesPerFrame);
|
||||||
|
|
||||||
CConcealmentMethod
|
CConcealmentMethod CConcealment_GetMethod(CConcealParams *pConcealCommonData);
|
||||||
CConcealment_GetMethod (CConcealParams *pConcealCommonData);
|
|
||||||
|
|
||||||
UINT
|
UINT CConcealment_GetDelay(CConcealParams *pConcealCommonData);
|
||||||
CConcealment_GetDelay (CConcealParams *pConcealCommonData);
|
|
||||||
|
|
||||||
AAC_DECODER_ERROR
|
AAC_DECODER_ERROR
|
||||||
CConcealment_SetParams (CConcealParams *concealParams,
|
CConcealment_SetParams(CConcealParams *concealParams, int method,
|
||||||
int method,
|
int fadeOutSlope, int fadeInSlope, int muteRelease,
|
||||||
int fadeOutSlope,
|
FIXP_DBL comfNoiseLevel);
|
||||||
int fadeInSlope,
|
|
||||||
int muteRelease,
|
|
||||||
int comfNoiseLevel);
|
|
||||||
|
|
||||||
CConcealmentState
|
CConcealmentState CConcealment_GetState(CConcealmentInfo *hConcealmentInfo);
|
||||||
CConcealment_GetState (CConcealmentInfo *hConcealmentInfo);
|
|
||||||
|
|
||||||
AAC_DECODER_ERROR
|
AAC_DECODER_ERROR
|
||||||
CConcealment_SetAttenuation(CConcealParams *concealParams,
|
CConcealment_SetAttenuation(CConcealParams *concealParams,
|
||||||
SHORT *fadeOutAttenuationVector,
|
const SHORT *fadeOutAttenuationVector,
|
||||||
SHORT *fadeInAttenuationVector);
|
const SHORT *fadeInAttenuationVector);
|
||||||
|
|
||||||
void CConcealment_Store (CConcealmentInfo *hConcealmentInfo,
|
void CConcealment_Store(
|
||||||
|
CConcealmentInfo *hConcealmentInfo,
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo);
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo);
|
||||||
|
|
||||||
int CConcealment_Apply (CConcealmentInfo *hConcealmentInfo,
|
int CConcealment_Apply(
|
||||||
|
CConcealmentInfo *hConcealmentInfo,
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
||||||
const SamplingRateInfo *pSamplingRateInfo,
|
const SamplingRateInfo *pSamplingRateInfo, const int samplesPerFrame,
|
||||||
const int samplesPerFrame,
|
const UCHAR lastLpdMode, const int FrameOk, const UINT flags);
|
||||||
const UCHAR lastLpdMode,
|
|
||||||
const int FrameOk,
|
|
||||||
const UINT flags);
|
|
||||||
|
|
||||||
FIXP_DBL
|
|
||||||
CConcealment_GetFadeFactor (CConcealmentInfo *hConcealmentInfo,
|
|
||||||
const int fPreviousFactor);
|
|
||||||
|
|
||||||
int CConcealment_GetLastFrameOk(CConcealmentInfo *hConcealmentInfo,
|
int CConcealment_GetLastFrameOk(CConcealmentInfo *hConcealmentInfo,
|
||||||
const int fBeforeApply);
|
const int fBeforeApply);
|
||||||
|
|
||||||
#endif /* #ifndef _CONCEAL_H_ */
|
INT CConcealment_TDFading(
|
||||||
|
int len, CAacDecoderStaticChannelInfo **ppAacDecoderStaticChannelInfo,
|
||||||
|
FIXP_PCM *pcmdata, FIXP_PCM *pcmdata_1);
|
||||||
|
|
||||||
|
#endif /* #ifndef CONCEAL_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,27 +90,27 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Christian Griebel
|
Author(s): Christian Griebel
|
||||||
|
|
||||||
Description: Error concealment structs and types
|
Description: Error concealment structs and types
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef CONCEAL_TYPES_H
|
#ifndef CONCEAL_TYPES_H
|
||||||
#define CONCEAL_TYPES_H
|
#define CONCEAL_TYPES_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "machine_type.h"
|
#include "machine_type.h"
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#include "rvlc_info.h"
|
#include "rvlc_info.h"
|
||||||
|
|
||||||
|
#include "usacdec_lpc.h"
|
||||||
|
|
||||||
#define CONCEAL_MAX_NUM_FADE_FACTORS ( 16 )
|
#define CONCEAL_MAX_NUM_FADE_FACTORS (32)
|
||||||
|
|
||||||
#define FIXP_CNCL FIXP_DBL
|
#define FIXP_CNCL FIXP_DBL
|
||||||
#define FL2FXCONST_CNCL FL2FXCONST_DBL
|
#define FL2FXCONST_CNCL FL2FXCONST_DBL
|
||||||
@ -108,8 +119,7 @@ amm-info@iis.fraunhofer.de
|
|||||||
#define CNCL_FRACT_BITS DFRACT_BITS
|
#define CNCL_FRACT_BITS DFRACT_BITS
|
||||||
|
|
||||||
/* Warning: Do not ever change these values. */
|
/* Warning: Do not ever change these values. */
|
||||||
typedef enum
|
typedef enum {
|
||||||
{
|
|
||||||
ConcealMethodNone = -1,
|
ConcealMethodNone = -1,
|
||||||
ConcealMethodMute = 0,
|
ConcealMethodMute = 0,
|
||||||
ConcealMethodNoise = 1,
|
ConcealMethodNoise = 1,
|
||||||
@ -118,9 +128,7 @@ typedef enum
|
|||||||
|
|
||||||
} CConcealmentMethod;
|
} CConcealmentMethod;
|
||||||
|
|
||||||
|
typedef enum {
|
||||||
typedef enum
|
|
||||||
{
|
|
||||||
ConcealState_Ok,
|
ConcealState_Ok,
|
||||||
ConcealState_Single,
|
ConcealState_Single,
|
||||||
ConcealState_FadeIn,
|
ConcealState_FadeIn,
|
||||||
@ -129,9 +137,7 @@ typedef enum
|
|||||||
|
|
||||||
} CConcealmentState;
|
} CConcealmentState;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
typedef struct
|
|
||||||
{
|
|
||||||
FIXP_SGL fadeOutFactor[CONCEAL_MAX_NUM_FADE_FACTORS];
|
FIXP_SGL fadeOutFactor[CONCEAL_MAX_NUM_FADE_FACTORS];
|
||||||
FIXP_SGL fadeInFactor[CONCEAL_MAX_NUM_FADE_FACTORS];
|
FIXP_SGL fadeInFactor[CONCEAL_MAX_NUM_FADE_FACTORS];
|
||||||
|
|
||||||
@ -140,14 +146,17 @@ typedef struct
|
|||||||
int numFadeOutFrames;
|
int numFadeOutFrames;
|
||||||
int numFadeInFrames;
|
int numFadeInFrames;
|
||||||
int numMuteReleaseFrames;
|
int numMuteReleaseFrames;
|
||||||
int comfortNoiseLevel;
|
FIXP_DBL comfortNoiseLevel;
|
||||||
|
|
||||||
} CConcealParams;
|
} CConcealParams;
|
||||||
|
|
||||||
|
typedef enum {
|
||||||
|
FADE_TIMEDOMAIN_TOSPECTRALMUTE = 1,
|
||||||
|
FADE_TIMEDOMAIN_FROMSPECTRALMUTE,
|
||||||
|
FADE_TIMEDOMAIN
|
||||||
|
} TDfadingType;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
typedef struct
|
|
||||||
{
|
|
||||||
CConcealParams *pConcealParams;
|
CConcealParams *pConcealParams;
|
||||||
|
|
||||||
FIXP_CNCL spectralCoefficient[1024];
|
FIXP_CNCL spectralCoefficient[1024];
|
||||||
@ -155,24 +164,40 @@ typedef struct
|
|||||||
|
|
||||||
INT iRandomPhase;
|
INT iRandomPhase;
|
||||||
INT prevFrameOk[2];
|
INT prevFrameOk[2];
|
||||||
INT cntFadeFrames;
|
|
||||||
INT cntValidFrames;
|
INT cntValidFrames;
|
||||||
|
INT cntFadeFrames; /* State for signal fade-in/out */
|
||||||
|
/* States for signal fade-out of frames with more than one window/subframe -
|
||||||
|
[0] used by Update CntFadeFrames mode of CConcealment_ApplyFadeOut, [1] used
|
||||||
|
by FadeOut mode */
|
||||||
|
int winGrpOffset[2]; /* State for signal fade-out of frames with more than one
|
||||||
|
window/subframe */
|
||||||
|
int attGrpOffset[2]; /* State for faster signal fade-out of frames with
|
||||||
|
transient signal parts */
|
||||||
|
|
||||||
|
SCHAR lastRenderMode;
|
||||||
|
|
||||||
|
UCHAR windowShape;
|
||||||
|
BLOCK_TYPE windowSequence;
|
||||||
|
UCHAR lastWinGrpLen;
|
||||||
|
|
||||||
|
CConcealmentState concealState;
|
||||||
|
CConcealmentState concealState_old;
|
||||||
|
FIXP_DBL fade_old; /* last fading factor */
|
||||||
|
TDfadingType lastFadingType; /* last fading type */
|
||||||
|
|
||||||
SHORT aRvlcPreviousScaleFactor[RVLC_MAX_SFB]; /* needed once per channel */
|
SHORT aRvlcPreviousScaleFactor[RVLC_MAX_SFB]; /* needed once per channel */
|
||||||
UCHAR aRvlcPreviousCodebook[RVLC_MAX_SFB]; /* needed once per channel */
|
UCHAR aRvlcPreviousCodebook[RVLC_MAX_SFB]; /* needed once per channel */
|
||||||
SCHAR rvlcPreviousScaleFactorOK;
|
SCHAR rvlcPreviousScaleFactorOK;
|
||||||
SCHAR rvlcPreviousBlockType;
|
SCHAR rvlcPreviousBlockType;
|
||||||
|
|
||||||
|
FIXP_LPC lsf4[M_LP_FILTER_ORDER];
|
||||||
SCHAR lastRenderMode;
|
FIXP_DBL last_tcx_gain;
|
||||||
|
INT last_tcx_gain_e;
|
||||||
UCHAR windowShape;
|
ULONG TDNoiseSeed;
|
||||||
UCHAR windowSequence;
|
FIXP_PCM TDNoiseStates[3];
|
||||||
UCHAR lastWinGrpLen;
|
FIXP_SGL TDNoiseCoef[3];
|
||||||
|
FIXP_SGL TDNoiseAtt;
|
||||||
CConcealmentState concealState;
|
|
||||||
|
|
||||||
} CConcealmentInfo;
|
} CConcealmentInfo;
|
||||||
|
|
||||||
|
|
||||||
#endif /* #ifndef CONCEAL_TYPES_H */
|
#endif /* #ifndef CONCEAL_TYPES_H */
|
||||||
|
|||||||
@ -1,97 +0,0 @@
|
|||||||
|
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<>rderung der angewandten Forschung e.V.
|
|
||||||
All rights reserved.
|
|
||||||
|
|
||||||
1. INTRODUCTION
|
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
|
||||||
of the MPEG specifications.
|
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
|
||||||
applications information and documentation.
|
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
|
||||||
your modifications thereto in source code form.
|
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
|
||||||
modifications thereto to recipients of copies in binary form.
|
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
|
||||||
prior written permission.
|
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
|
||||||
software or your modifications thereto.
|
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
|
||||||
respect to this software.
|
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
|
||||||
by appropriate patent licenses.
|
|
||||||
|
|
||||||
4. DISCLAIMER
|
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
|
||||||
advised of the possibility of such damage.
|
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
|
||||||
|
|
||||||
Fraunhofer Institute for Integrated Circuits IIS
|
|
||||||
Attention: Audio and Multimedia Departments - FDK AAC LL
|
|
||||||
Am Wolfsmantel 33
|
|
||||||
91058 Erlangen, Germany
|
|
||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
|
||||||
amm-info@iis.fraunhofer.de
|
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
|
||||||
Description: debug output
|
|
||||||
|
|
||||||
******************************************************************************/
|
|
||||||
|
|
||||||
#ifndef DEBUG_H
|
|
||||||
#define DEBUG_H
|
|
||||||
|
|
||||||
#include "machine_type.h"
|
|
||||||
|
|
||||||
|
|
||||||
#endif
|
|
||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,19 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************************************************************\
|
/**************************** AAC decoder library ******************************
|
||||||
*
|
|
||||||
* filename: ldfiltbank.c
|
Author(s):
|
||||||
* project : MPEG-4 Audio Decoder
|
|
||||||
* contents/description: low delay filterbank
|
Description: low delay filterbank
|
||||||
*
|
|
||||||
\***************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "ldfiltbank.h"
|
#include "ldfiltbank.h"
|
||||||
|
|
||||||
|
|
||||||
#include "aac_rom.h"
|
#include "aac_rom.h"
|
||||||
#include "dct.h"
|
#include "dct.h"
|
||||||
#include "FDK_tools_rom.h"
|
#include "FDK_tools_rom.h"
|
||||||
@ -99,110 +109,166 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#define LDFB_HEADROOM 2
|
#define LDFB_HEADROOM 2
|
||||||
|
|
||||||
static void multE2_DinvF_fdk(INT_PCM *output, FIXP_DBL* x, const FIXP_WTB* fb, FIXP_DBL* z, const int N, const int stride)
|
#if defined(__arm__)
|
||||||
{
|
#endif
|
||||||
int i, scale;
|
|
||||||
|
static void multE2_DinvF_fdk(FIXP_PCM *output, FIXP_DBL *x, const FIXP_WTB *fb,
|
||||||
|
FIXP_DBL *z, const int N) {
|
||||||
|
int i;
|
||||||
|
|
||||||
/* scale for FIXP_DBL -> INT_PCM conversion. */
|
/* scale for FIXP_DBL -> INT_PCM conversion. */
|
||||||
scale = (DFRACT_BITS - SAMPLE_BITS) - LDFB_HEADROOM;
|
const int scale = (DFRACT_BITS - SAMPLE_BITS) - LDFB_HEADROOM;
|
||||||
|
#if ((DFRACT_BITS - SAMPLE_BITS - LDFB_HEADROOM) > 0)
|
||||||
|
FIXP_DBL rnd_val_wts0 = (FIXP_DBL)0;
|
||||||
|
FIXP_DBL rnd_val_wts1 = (FIXP_DBL)0;
|
||||||
|
if (-WTS0 - 1 + scale)
|
||||||
|
rnd_val_wts0 = (FIXP_DBL)(1 << (-WTS0 - 1 + scale - 1));
|
||||||
|
if (-WTS1 - 1 + scale)
|
||||||
|
rnd_val_wts1 = (FIXP_DBL)(1 << (-WTS1 - 1 + scale - 1));
|
||||||
|
#endif
|
||||||
|
|
||||||
for(i=0;i<N/4;i++)
|
for (i = 0; i < N / 4; i++) {
|
||||||
{
|
|
||||||
FIXP_DBL z0, z2, tmp;
|
FIXP_DBL z0, z2, tmp;
|
||||||
|
|
||||||
z2 = x[N / 2 + i];
|
z2 = x[N / 2 + i];
|
||||||
z0 = z2 + (fMultDiv2(z[N / 2 + i], fb[2 * N + i]) >> (-WTS2 - 1));
|
z0 = z2 + (fMultDiv2(z[N / 2 + i], fb[2 * N + i]) >> (-WTS2 - 1));
|
||||||
|
|
||||||
z[N/2+i] = x[N/2-1-i] + ( fMultDiv2(z[N + i], fb[2*N + N/2 + i]) >> (-WTS2-1) );
|
z[N / 2 + i] = x[N / 2 - 1 - i] +
|
||||||
|
(fMultDiv2(z[N + i], fb[2 * N + N / 2 + i]) >> (-WTS2 - 1));
|
||||||
|
|
||||||
tmp = ( fMultDiv2(z[N/2+i], fb[N+N/2-1-i]) + fMultDiv2(z[i], fb[N+N/2+i]) ) ;
|
tmp = (fMultDiv2(z[N / 2 + i], fb[N + N / 2 - 1 - i]) +
|
||||||
|
fMultDiv2(z[i], fb[N + N / 2 + i]));
|
||||||
|
|
||||||
#if (SAMPLE_BITS <= 16)
|
#if ((DFRACT_BITS - SAMPLE_BITS - LDFB_HEADROOM) > 0)
|
||||||
FDK_ASSERT((-WTS1 - 1 + scale) >= 0);
|
FDK_ASSERT((-WTS1 - 1 + scale) >= 0);
|
||||||
output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp, -WTS1-1 + scale, SAMPLE_BITS);
|
FDK_ASSERT(tmp <= ((FIXP_DBL)0x7FFFFFFF -
|
||||||
|
rnd_val_wts1)); /* rounding must not cause overflow */
|
||||||
|
output[(N * 3 / 4 - 1 - i)] = (FIXP_PCM)SATURATE_RIGHT_SHIFT(
|
||||||
|
tmp + rnd_val_wts1, -WTS1 - 1 + scale, PCM_OUT_BITS);
|
||||||
#else
|
#else
|
||||||
FDK_ASSERT((WTS1 + 1 - scale) >= 0);
|
FDK_ASSERT((WTS1 + 1 - scale) >= 0);
|
||||||
output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp, WTS1+1 - scale, SAMPLE_BITS);
|
output[(N * 3 / 4 - 1 - i)] =
|
||||||
|
(FIXP_PCM)SATURATE_LEFT_SHIFT(tmp, WTS1 + 1 - scale, PCM_OUT_BITS);
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
z[i] = z0;
|
z[i] = z0;
|
||||||
z[N + i] = z2;
|
z[N + i] = z2;
|
||||||
}
|
}
|
||||||
|
|
||||||
for(i=N/4;i<N/2;i++)
|
for (i = N / 4; i < N / 2; i++) {
|
||||||
{
|
|
||||||
FIXP_DBL z0, z2, tmp0, tmp1;
|
FIXP_DBL z0, z2, tmp0, tmp1;
|
||||||
|
|
||||||
z2 = x[N / 2 + i];
|
z2 = x[N / 2 + i];
|
||||||
z0 = z2 + (fMultDiv2(z[N / 2 + i], fb[2 * N + i]) >> (-WTS2 - 1));
|
z0 = z2 + (fMultDiv2(z[N / 2 + i], fb[2 * N + i]) >> (-WTS2 - 1));
|
||||||
|
|
||||||
z[N/2+i] = x[N/2-1-i] + ( fMultDiv2(z[N + i], fb[2*N + N/2 + i]) >> (-WTS2-1) );
|
z[N / 2 + i] = x[N / 2 - 1 - i] +
|
||||||
|
(fMultDiv2(z[N + i], fb[2 * N + N / 2 + i]) >> (-WTS2 - 1));
|
||||||
|
|
||||||
tmp0 = ( fMultDiv2(z[N/2+i], fb[N/2-1-i]) + fMultDiv2(z[i], fb[N/2+i]) ) ;
|
tmp0 = (fMultDiv2(z[N / 2 + i], fb[N / 2 - 1 - i]) +
|
||||||
tmp1 = ( fMultDiv2(z[N/2+i], fb[N+N/2-1-i]) + fMultDiv2(z[i], fb[N+N/2+i]) ) ;
|
fMultDiv2(z[i], fb[N / 2 + i]));
|
||||||
|
tmp1 = (fMultDiv2(z[N / 2 + i], fb[N + N / 2 - 1 - i]) +
|
||||||
|
fMultDiv2(z[i], fb[N + N / 2 + i]));
|
||||||
|
|
||||||
#if (SAMPLE_BITS <= 16)
|
#if ((DFRACT_BITS - SAMPLE_BITS - LDFB_HEADROOM) > 0)
|
||||||
FDK_ASSERT((-WTS0 - 1 + scale) >= 0);
|
FDK_ASSERT((-WTS0 - 1 + scale) >= 0);
|
||||||
output[(i-N/4)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp0, -WTS0-1 + scale, SAMPLE_BITS);
|
FDK_ASSERT(tmp0 <= ((FIXP_DBL)0x7FFFFFFF -
|
||||||
output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp1, -WTS1-1 + scale, SAMPLE_BITS);
|
rnd_val_wts0)); /* rounding must not cause overflow */
|
||||||
|
FDK_ASSERT(tmp1 <= ((FIXP_DBL)0x7FFFFFFF -
|
||||||
|
rnd_val_wts1)); /* rounding must not cause overflow */
|
||||||
|
output[(i - N / 4)] = (FIXP_PCM)SATURATE_RIGHT_SHIFT(
|
||||||
|
tmp0 + rnd_val_wts0, -WTS0 - 1 + scale, PCM_OUT_BITS);
|
||||||
|
output[(N * 3 / 4 - 1 - i)] = (FIXP_PCM)SATURATE_RIGHT_SHIFT(
|
||||||
|
tmp1 + rnd_val_wts1, -WTS1 - 1 + scale, PCM_OUT_BITS);
|
||||||
#else
|
#else
|
||||||
FDK_ASSERT((WTS0 + 1 - scale) >= 0);
|
FDK_ASSERT((WTS0 + 1 - scale) >= 0);
|
||||||
output[(i-N/4)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0+1 - scale, SAMPLE_BITS);
|
output[(i - N / 4)] =
|
||||||
output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp1, WTS1+1 - scale, SAMPLE_BITS);
|
(FIXP_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0 + 1 - scale, PCM_OUT_BITS);
|
||||||
|
output[(N * 3 / 4 - 1 - i)] =
|
||||||
|
(FIXP_PCM)SATURATE_LEFT_SHIFT(tmp1, WTS1 + 1 - scale, PCM_OUT_BITS);
|
||||||
#endif
|
#endif
|
||||||
z[i] = z0;
|
z[i] = z0;
|
||||||
z[N + i] = z2;
|
z[N + i] = z2;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Exchange quarter parts of x to bring them in the "right" order */
|
/* Exchange quarter parts of x to bring them in the "right" order */
|
||||||
for(i=0;i<N/4;i++)
|
for (i = 0; i < N / 4; i++) {
|
||||||
{
|
|
||||||
FIXP_DBL tmp0 = fMultDiv2(z[i], fb[N / 2 + i]);
|
FIXP_DBL tmp0 = fMultDiv2(z[i], fb[N / 2 + i]);
|
||||||
|
|
||||||
#if (SAMPLE_BITS <= 16)
|
#if ((DFRACT_BITS - SAMPLE_BITS - LDFB_HEADROOM) > 0)
|
||||||
FDK_ASSERT((-WTS0 - 1 + scale) >= 0);
|
FDK_ASSERT((-WTS0 - 1 + scale) >= 0);
|
||||||
output[(N*3/4 + i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp0, -WTS0-1 + scale, SAMPLE_BITS);
|
FDK_ASSERT(tmp0 <= ((FIXP_DBL)0x7FFFFFFF -
|
||||||
|
rnd_val_wts0)); /* rounding must not cause overflow */
|
||||||
|
output[(N * 3 / 4 + i)] = (FIXP_PCM)SATURATE_RIGHT_SHIFT(
|
||||||
|
tmp0 + rnd_val_wts0, -WTS0 - 1 + scale, PCM_OUT_BITS);
|
||||||
#else
|
#else
|
||||||
FDK_ASSERT((WTS0 + 1 - scale) >= 0);
|
FDK_ASSERT((WTS0 + 1 - scale) >= 0);
|
||||||
output[(N*3/4 + i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0+1 - scale, SAMPLE_BITS);
|
output[(N * 3 / 4 + i)] =
|
||||||
|
(FIXP_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0 + 1 - scale, PCM_OUT_BITS);
|
||||||
#endif
|
#endif
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
int InvMdctTransformLowDelay_fdk (FIXP_DBL *mdctData, const int mdctData_e, INT_PCM *output, FIXP_DBL *fs_buffer, const int stride, const int N) {
|
int InvMdctTransformLowDelay_fdk(FIXP_DBL *mdctData, const int mdctData_e,
|
||||||
|
FIXP_PCM *output, FIXP_DBL *fs_buffer,
|
||||||
|
const int N) {
|
||||||
const FIXP_WTB *coef;
|
const FIXP_WTB *coef;
|
||||||
FIXP_DBL gain = (FIXP_DBL)0;
|
FIXP_DBL gain = (FIXP_DBL)0;
|
||||||
int scale = mdctData_e + MDCT_OUT_HEADROOM - LDFB_HEADROOM; /* The LDFB_HEADROOM is compensated inside multE2_DinvF_fdk() below */
|
int scale = mdctData_e + MDCT_OUT_HEADROOM -
|
||||||
|
LDFB_HEADROOM; /* The LDFB_HEADROOM is compensated inside
|
||||||
|
multE2_DinvF_fdk() below */
|
||||||
|
|
||||||
/* Select LD window slope */
|
/* Select LD window slope */
|
||||||
if (N == 512)
|
switch (N) {
|
||||||
coef = (FIXP_WTB*)LowDelaySynthesis512;
|
case 256:
|
||||||
else
|
coef = LowDelaySynthesis256;
|
||||||
coef = (FIXP_WTB*)LowDelaySynthesis480;
|
break;
|
||||||
|
case 240:
|
||||||
|
coef = LowDelaySynthesis240;
|
||||||
|
break;
|
||||||
|
case 160:
|
||||||
|
coef = LowDelaySynthesis160;
|
||||||
|
break;
|
||||||
|
case 128:
|
||||||
|
coef = LowDelaySynthesis128;
|
||||||
|
break;
|
||||||
|
case 120:
|
||||||
|
coef = LowDelaySynthesis120;
|
||||||
|
break;
|
||||||
|
case 512:
|
||||||
|
coef = LowDelaySynthesis512;
|
||||||
|
break;
|
||||||
|
case 480:
|
||||||
|
default:
|
||||||
|
coef = LowDelaySynthesis480;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
Apply exponent and 1/N factor.
|
Apply exponent and 1/N factor.
|
||||||
Note: "scale" is off by one because for LD_MDCT the window length is twice
|
Note: "scale" is off by one because for LD_MDCT the window length is twice
|
||||||
the window length of a regular MDCT. This is corrected inside multE2_DinvF_fdk().
|
the window length of a regular MDCT. This is corrected inside
|
||||||
Refer to ISO/IEC 14496-3:2009 page 277, chapter 4.6.20.2 "Low Delay Window".
|
multE2_DinvF_fdk(). Refer to ISO/IEC 14496-3:2009 page 277,
|
||||||
|
chapter 4.6.20.2 "Low Delay Window".
|
||||||
*/
|
*/
|
||||||
imdct_gain(&gain, &scale, N);
|
imdct_gain(&gain, &scale, N);
|
||||||
|
|
||||||
dct_IV(mdctData, N, &scale);
|
dct_IV(mdctData, N, &scale);
|
||||||
|
|
||||||
|
if (N == 256 || N == 240 || N == 160) {
|
||||||
|
scale -= 1;
|
||||||
|
} else if (N == 128 || N == 120) {
|
||||||
|
scale -= 2;
|
||||||
|
}
|
||||||
|
|
||||||
if (gain != (FIXP_DBL)0) {
|
if (gain != (FIXP_DBL)0) {
|
||||||
scaleValuesWithFactor(mdctData, gain, N, scale);
|
scaleValuesWithFactor(mdctData, gain, N, scale);
|
||||||
} else {
|
} else {
|
||||||
scaleValues(mdctData, N, scale);
|
scaleValues(mdctData, N, scale);
|
||||||
}
|
}
|
||||||
|
|
||||||
/* Since all exponent and factors have been applied, current exponent is zero. */
|
/* Since all exponent and factors have been applied, current exponent is zero.
|
||||||
multE2_DinvF_fdk(output, mdctData, coef, fs_buffer, N, stride);
|
*/
|
||||||
|
multE2_DinvF_fdk(output, mdctData, coef, fs_buffer, N);
|
||||||
|
|
||||||
return (1);
|
return (1);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,31 +90,23 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************************************************************\
|
/**************************** AAC decoder library ******************************
|
||||||
*
|
|
||||||
|
|
||||||
* filename: ldfiltbank.h
|
Author(s):
|
||||||
* project : MPEG-4 Audio Decoder
|
|
||||||
* contents/description: low delay filterbank interface
|
|
||||||
*
|
|
||||||
\***************************************************************************/
|
|
||||||
|
|
||||||
#ifndef _LDFILTBANK_H
|
Description: low delay filterbank interface
|
||||||
#define _LDFILTBANK_H
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef LDFILTBANK_H
|
||||||
|
#define LDFILTBANK_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
|
int InvMdctTransformLowDelay_fdk(FIXP_DBL *mdctdata_m, const int mdctdata_e,
|
||||||
int InvMdctTransformLowDelay_fdk (
|
FIXP_PCM *mdctOut, FIXP_DBL *fs_buffer,
|
||||||
FIXP_DBL *mdctdata_m,
|
const int frameLength);
|
||||||
const int mdctdata_e,
|
|
||||||
INT_PCM *mdctOut,
|
|
||||||
FIXP_DBL *fs_buffer,
|
|
||||||
const int stride,
|
|
||||||
const int frameLength
|
|
||||||
);
|
|
||||||
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,21 +90,23 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description:
|
Description:
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef OVERLAPADD_H
|
#ifndef OVERLAPADD_H
|
||||||
#define OVERLAPADD_H
|
#define OVERLAPADD_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#define OverlapBufferSize (1024*2)
|
/* ELD uses different overlap which is twice the frame size: */
|
||||||
|
#define OverlapBufferSize (768)
|
||||||
|
|
||||||
typedef FIXP_DBL SPECTRUM[1024];
|
typedef FIXP_DBL SPECTRUM[1024];
|
||||||
typedef FIXP_DBL* SPECTRAL_PTR;
|
typedef FIXP_DBL* SPECTRAL_PTR;
|
||||||
@ -101,5 +114,7 @@ typedef FIXP_DBL * SPECTRAL_PTR;
|
|||||||
#define SPEC_LONG(ptr) (ptr)
|
#define SPEC_LONG(ptr) (ptr)
|
||||||
#define SPEC(ptr, w, gl) ((ptr) + ((w) * (gl)))
|
#define SPEC(ptr, w, gl) ((ptr) + ((w) * (gl)))
|
||||||
|
|
||||||
|
#define SPEC_TCX(ptr, f, gl, fb) \
|
||||||
|
((ptr) + ((f) * (gl * 2) * (((fb) == 0) ? 1 : 2)))
|
||||||
|
|
||||||
#endif /* #ifndef OVERLAPADD_H */
|
#endif /* #ifndef OVERLAPADD_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,37 +90,32 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: pulse data tool
|
Description: pulse data tool
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "pulsedata.h"
|
#include "pulsedata.h"
|
||||||
|
|
||||||
|
|
||||||
#include "channelinfo.h"
|
#include "channelinfo.h"
|
||||||
|
|
||||||
|
INT CPulseData_Read(HANDLE_FDK_BITSTREAM bs, CPulseData *const PulseData,
|
||||||
INT CPulseData_Read(
|
const SHORT *sfb_startlines, const void *pIcsInfo,
|
||||||
HANDLE_FDK_BITSTREAM bs,
|
const SHORT frame_length) {
|
||||||
CPulseData *const PulseData,
|
|
||||||
const SHORT *sfb_startlines,
|
|
||||||
const void *pIcsInfo,
|
|
||||||
const SHORT frame_length
|
|
||||||
)
|
|
||||||
{
|
|
||||||
int i, k = 0;
|
int i, k = 0;
|
||||||
const UINT MaxSfBands = GetScaleFactorBandsTransmitted((CIcsInfo*)pIcsInfo);
|
const UINT MaxSfBands =
|
||||||
|
GetScaleFactorBandsTransmitted((const CIcsInfo *)pIcsInfo);
|
||||||
|
|
||||||
/* reset pulse data flag */
|
/* reset pulse data flag */
|
||||||
PulseData->PulseDataPresent = 0;
|
PulseData->PulseDataPresent = 0;
|
||||||
|
|
||||||
if ((PulseData->PulseDataPresent = (UCHAR)FDKreadBit(bs)) != 0) {
|
if ((PulseData->PulseDataPresent = (UCHAR)FDKreadBit(bs)) != 0) {
|
||||||
if (!IsLongBlock((CIcsInfo*)pIcsInfo)) {
|
if (!IsLongBlock((const CIcsInfo *)pIcsInfo)) {
|
||||||
return AAC_DEC_DECODE_FRAME_ERROR;
|
return AAC_DEC_DECODE_FRAME_ERROR;
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -133,26 +139,26 @@ INT CPulseData_Read(
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
void CPulseData_Apply(CPulseData *PulseData, /*!< pointer to pulse data side info */
|
void CPulseData_Apply(
|
||||||
const short *pScaleFactorBandOffsets, /*!< pointer to scalefactor band offsets */
|
CPulseData *PulseData, /*!< pointer to pulse data side info */
|
||||||
|
const short
|
||||||
|
*pScaleFactorBandOffsets, /*!< pointer to scalefactor band offsets */
|
||||||
FIXP_DBL *coef) /*!< pointer to spectrum */
|
FIXP_DBL *coef) /*!< pointer to spectrum */
|
||||||
{
|
{
|
||||||
int i, k;
|
int i, k;
|
||||||
|
|
||||||
if (PulseData->PulseDataPresent)
|
if (PulseData->PulseDataPresent) {
|
||||||
{
|
|
||||||
k = pScaleFactorBandOffsets[PulseData->PulseStartBand];
|
k = pScaleFactorBandOffsets[PulseData->PulseStartBand];
|
||||||
|
|
||||||
for (i=0; i<=PulseData->NumberPulse; i++)
|
for (i = 0; i <= PulseData->NumberPulse; i++) {
|
||||||
{
|
|
||||||
k += PulseData->PulseOffset[i];
|
k += PulseData->PulseOffset[i];
|
||||||
if (coef [k] > (FIXP_DBL)0) coef[k] += (FIXP_DBL)(int)PulseData->PulseAmp[i];
|
if (coef[k] > (FIXP_DBL)0)
|
||||||
else coef[k] -= (FIXP_DBL)(int)PulseData->PulseAmp[i];
|
coef[k] += (FIXP_DBL)(int)PulseData->PulseAmp[i];
|
||||||
|
else
|
||||||
|
coef[k] -= (FIXP_DBL)(int)PulseData->PulseAmp[i];
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,27 +90,25 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: pulse data tool
|
Description: pulse data tool
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef PULSEDATA_H
|
#ifndef PULSEDATA_H
|
||||||
#define PULSEDATA_H
|
#define PULSEDATA_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
|
|
||||||
#define N_MAX_LINES 4
|
#define N_MAX_LINES 4
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
UCHAR PulseDataPresent;
|
UCHAR PulseDataPresent;
|
||||||
UCHAR NumberPulse;
|
UCHAR NumberPulse;
|
||||||
UCHAR PulseStartBand;
|
UCHAR PulseStartBand;
|
||||||
@ -114,17 +123,14 @@ typedef struct
|
|||||||
* the bitstream.
|
* the bitstream.
|
||||||
*
|
*
|
||||||
* \param bs bit stream handle data source.
|
* \param bs bit stream handle data source.
|
||||||
* \param PulseData pointer to a CPulseData were the decoded data is stored into.
|
* \param PulseData pointer to a CPulseData were the decoded data is stored
|
||||||
|
* into.
|
||||||
* \param MaxSfBands max number of scale factor bands.
|
* \param MaxSfBands max number of scale factor bands.
|
||||||
* \return 0 on success, != 0 on parse error.
|
* \return 0 on success, != 0 on parse error.
|
||||||
*/
|
*/
|
||||||
INT CPulseData_Read(
|
INT CPulseData_Read(const HANDLE_FDK_BITSTREAM bs, CPulseData *const PulseData,
|
||||||
const HANDLE_FDK_BITSTREAM bs,
|
const SHORT *sfb_startlines, const void *pIcsInfo,
|
||||||
CPulseData *const PulseData,
|
const SHORT frame_length);
|
||||||
const SHORT *sfb_startlines,
|
|
||||||
const void *pIcsInfo,
|
|
||||||
const SHORT frame_length
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Apply pulse data to spectral lines
|
* \brief Apply pulse data to spectral lines
|
||||||
@ -134,12 +140,11 @@ INT CPulseData_Read(
|
|||||||
*
|
*
|
||||||
* \param PulseData pointer to the previously decoded pulse data.
|
* \param PulseData pointer to the previously decoded pulse data.
|
||||||
* \param pScaleFactorBandOffsets scale factor band line offset table.
|
* \param pScaleFactorBandOffsets scale factor band line offset table.
|
||||||
* \param coef pointer to the spectral data were pulse data should be applied to.
|
* \param coef pointer to the spectral data were pulse data should be applied
|
||||||
|
* to.
|
||||||
* \return none
|
* \return none
|
||||||
*/
|
*/
|
||||||
void CPulseData_Apply(CPulseData *PulseData,
|
void CPulseData_Apply(CPulseData *PulseData,
|
||||||
const short *pScaleFactorBandOffsets,
|
const short *pScaleFactorBandOffsets, FIXP_DBL *coef);
|
||||||
FIXP_DBL *coef);
|
|
||||||
|
|
||||||
|
|
||||||
#endif /* #ifndef PULSEDATA_H */
|
#endif /* #ifndef PULSEDATA_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,7 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s):
|
||||||
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
@ -90,8 +109,6 @@ amm-info@iis.fraunhofer.de
|
|||||||
#ifndef RVLC_H
|
#ifndef RVLC_H
|
||||||
#define RVLC_H
|
#define RVLC_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "aacdecoder.h"
|
#include "aacdecoder.h"
|
||||||
#include "channel.h"
|
#include "channel.h"
|
||||||
#include "rvlc_info.h"
|
#include "rvlc_info.h"
|
||||||
@ -100,13 +117,19 @@ amm-info@iis.fraunhofer.de
|
|||||||
/* errorLogRvlc: A word of 32 bits used for logging possible errors */
|
/* errorLogRvlc: A word of 32 bits used for logging possible errors */
|
||||||
/* within RVLC in case of distorted bitstreams. */
|
/* within RVLC in case of distorted bitstreams. */
|
||||||
/* ------------------------------------------------------------------- */
|
/* ------------------------------------------------------------------- */
|
||||||
#define RVLC_ERROR_ALL_ESCAPE_WORDS_INVALID 0x80000000 /* ESC-Dec During RVLC-Escape-decoding there have been more bits decoded as there are available */
|
#define RVLC_ERROR_ALL_ESCAPE_WORDS_INVALID \
|
||||||
#define RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_FWD 0x40000000 /* RVL-Dec negative sum-bitcounter during RVL-fwd-decoding (long+shrt) */
|
0x80000000 /* ESC-Dec During RVLC-Escape-decoding there have been more \
|
||||||
#define RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_BWD 0x20000000 /* RVL-Dec negative sum-bitcounter during RVL-fwd-decoding (long+shrt) */
|
bits decoded as there are available */
|
||||||
#define RVLC_ERROR_FORBIDDEN_CW_DETECTED_FWD 0x08000000 /* RVL-Dec forbidden codeword detected fwd (long+shrt) */
|
#define RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_FWD \
|
||||||
#define RVLC_ERROR_FORBIDDEN_CW_DETECTED_BWD 0x04000000 /* RVL-Dec forbidden codeword detected bwd (long+shrt) */
|
0x40000000 /* RVL-Dec negative sum-bitcounter during RVL-fwd-decoding \
|
||||||
|
(long+shrt) */
|
||||||
|
#define RVLC_ERROR_RVL_SUM_BIT_COUNTER_BELOW_ZERO_BWD \
|
||||||
|
0x20000000 /* RVL-Dec negative sum-bitcounter during RVL-fwd-decoding \
|
||||||
|
(long+shrt) */
|
||||||
|
#define RVLC_ERROR_FORBIDDEN_CW_DETECTED_FWD \
|
||||||
|
0x08000000 /* RVL-Dec forbidden codeword detected fwd (long+shrt) */
|
||||||
|
#define RVLC_ERROR_FORBIDDEN_CW_DETECTED_BWD \
|
||||||
|
0x04000000 /* RVL-Dec forbidden codeword detected bwd (long+shrt) */
|
||||||
|
|
||||||
void CRvlc_Read(CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
void CRvlc_Read(CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
HANDLE_FDK_BITSTREAM bs);
|
HANDLE_FDK_BITSTREAM bs);
|
||||||
@ -116,7 +139,8 @@ void CRvlc_Decode (CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
|||||||
HANDLE_FDK_BITSTREAM bs);
|
HANDLE_FDK_BITSTREAM bs);
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief performe sanity checks to the channel data corresponding to one channel element.
|
* \brief performe sanity checks to the channel data corresponding to one
|
||||||
|
* channel element.
|
||||||
* \param pAacDecoderChannelInfo
|
* \param pAacDecoderChannelInfo
|
||||||
* \param pAacDecoderStaticChannelInfo
|
* \param pAacDecoderStaticChannelInfo
|
||||||
* \param elChannels amount of channels of the channel element.
|
* \param elChannels amount of channels of the channel element.
|
||||||
@ -124,11 +148,6 @@ void CRvlc_Decode (CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
|||||||
void CRvlc_ElementCheck(
|
void CRvlc_ElementCheck(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
|
||||||
const UINT flags,
|
const UINT flags, const INT elChannels);
|
||||||
const INT elChannels
|
|
||||||
);
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#endif /* RVLC_H */
|
#endif /* RVLC_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,7 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s):
|
||||||
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
@ -89,17 +108,20 @@ amm-info@iis.fraunhofer.de
|
|||||||
#ifndef RVLC_INFO_H
|
#ifndef RVLC_INFO_H
|
||||||
#define RVLC_INFO_H
|
#define RVLC_INFO_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#define FWD 0 /* bitstream decoding direction forward (RVL coded part) */
|
#define FWD 0 /* bitstream decoding direction forward (RVL coded part) */
|
||||||
#define BWD 1 /* bitstream decoding direction backward (RVL coded part) */
|
#define BWD 1 /* bitstream decoding direction backward (RVL coded part) */
|
||||||
|
|
||||||
#define MAX_RVL 7 /* positive RVLC escape */
|
#define MAX_RVL 7 /* positive RVLC escape */
|
||||||
#define MIN_RVL -7 /* negative RVLC escape */
|
#define MIN_RVL -7 /* negative RVLC escape */
|
||||||
#define MAX_ALLOWED_DPCM_INDEX 14 /* the maximum allowed index of a decoded dpcm value (offset 'TABLE_OFFSET' incl --> must be subtracted) */
|
#define MAX_ALLOWED_DPCM_INDEX \
|
||||||
#define TABLE_OFFSET 7 /* dpcm offset of valid output values of rvl table decoding, the rvl table ouly returns positive values, therefore the offset */
|
14 /* the maximum allowed index of a decoded dpcm value (offset \
|
||||||
|
'TABLE_OFFSET' incl --> must be subtracted) */
|
||||||
|
#define TABLE_OFFSET \
|
||||||
|
7 /* dpcm offset of valid output values of rvl table decoding, the rvl table \
|
||||||
|
ouly returns positive values, therefore the offset */
|
||||||
#define MAX_LEN_RVLC_CODE_WORD 9 /* max length of a RVL codeword in bits */
|
#define MAX_LEN_RVLC_CODE_WORD 9 /* max length of a RVL codeword in bits */
|
||||||
#define MAX_LEN_RVLC_ESCAPE_WORD 20 /* max length of huffman coded RVLC escape word in bits */
|
#define MAX_LEN_RVLC_ESCAPE_WORD \
|
||||||
|
20 /* max length of huffman coded RVLC escape word in bits */
|
||||||
|
|
||||||
#define DPCM_NOISE_NRG_BITS 9
|
#define DPCM_NOISE_NRG_BITS 9
|
||||||
#define SF_OFFSET 100 /* offset for correcting scf value */
|
#define SF_OFFSET 100 /* offset for correcting scf value */
|
||||||
@ -110,12 +132,16 @@ amm-info@iis.fraunhofer.de
|
|||||||
#define RVLC_MAX_SFB ((8) * (16))
|
#define RVLC_MAX_SFB ((8) * (16))
|
||||||
|
|
||||||
/* sideinfo of RVLC */
|
/* sideinfo of RVLC */
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
/* ------- ESC 1 Data: --------- */ /* order of RVLC-bitstream components in
|
||||||
/* ------- ESC 1 Data: --------- */ /* order of RVLC-bitstream components in bitstream (RVLC-initialization), every component appears only once in bitstream */
|
bitstream (RVLC-initialization), every
|
||||||
|
component appears only once in
|
||||||
|
bitstream */
|
||||||
INT sf_concealment; /* 1 */
|
INT sf_concealment; /* 1 */
|
||||||
INT rev_global_gain; /* 2 */
|
INT rev_global_gain; /* 2 */
|
||||||
SHORT length_of_rvlc_sf; /* 3 */ /* original value, gets modified (subtract 9) in case of noise (PNS); is kept for later use */
|
SHORT length_of_rvlc_sf; /* 3 */ /* original value, gets modified
|
||||||
|
(subtract 9) in case of noise
|
||||||
|
(PNS); is kept for later use */
|
||||||
INT dpcm_noise_nrg; /* 4 optional */
|
INT dpcm_noise_nrg; /* 4 optional */
|
||||||
INT sf_escapes_present; /* 5 */
|
INT sf_escapes_present; /* 5 */
|
||||||
SHORT length_of_rvlc_escapes; /* 6 optional */
|
SHORT length_of_rvlc_escapes; /* 6 optional */
|
||||||
@ -124,11 +150,12 @@ typedef struct
|
|||||||
INT dpcm_is_last_position;
|
INT dpcm_is_last_position;
|
||||||
|
|
||||||
SHORT length_of_rvlc_sf_fwd; /* length_of_rvlc_sf used for forward decoding */
|
SHORT length_of_rvlc_sf_fwd; /* length_of_rvlc_sf used for forward decoding */
|
||||||
SHORT length_of_rvlc_sf_bwd; /* length_of_rvlc_sf used for backward decoding */
|
SHORT
|
||||||
|
length_of_rvlc_sf_bwd; /* length_of_rvlc_sf used for backward decoding */
|
||||||
|
|
||||||
/* for RVL-Codeword decoder to distinguish between fwd and bwd decoding */
|
/* for RVL-Codeword decoder to distinguish between fwd and bwd decoding */
|
||||||
SHORT *pRvlBitCnt_RVL;
|
SHORT *pRvlBitCnt_RVL;
|
||||||
USHORT *pBitstrIndxRvl_RVL;
|
INT *pBitstrIndxRvl_RVL;
|
||||||
|
|
||||||
UCHAR numWindowGroups;
|
UCHAR numWindowGroups;
|
||||||
UCHAR maxSfbTransmitted;
|
UCHAR maxSfbTransmitted;
|
||||||
@ -137,9 +164,11 @@ typedef struct
|
|||||||
UCHAR direction;
|
UCHAR direction;
|
||||||
|
|
||||||
/* bitstream indices */
|
/* bitstream indices */
|
||||||
USHORT bitstreamIndexRvlFwd; /* base address of RVL-coded-scalefactor data (ESC 2) for forward decoding */
|
INT bitstreamIndexRvlFwd; /* base address of RVL-coded-scalefactor data (ESC
|
||||||
USHORT bitstreamIndexRvlBwd; /* base address of RVL-coded-scalefactor data (ESC 2) for backward decoding */
|
2) for forward decoding */
|
||||||
USHORT bitstreamIndexEsc; /* base address where RVLC-escapes start (ESC 2) */
|
INT bitstreamIndexRvlBwd; /* base address of RVL-coded-scalefactor data (ESC
|
||||||
|
2) for backward decoding */
|
||||||
|
INT bitstreamIndexEsc; /* base address where RVLC-escapes start (ESC 2) */
|
||||||
|
|
||||||
/* decoding trees */
|
/* decoding trees */
|
||||||
const UINT *pHuffTreeRvlCodewds;
|
const UINT *pHuffTreeRvlCodewds;
|
||||||
@ -171,6 +200,4 @@ typedef struct
|
|||||||
|
|
||||||
typedef CErRvlcInfo RVLC_INFO; /* temp */
|
typedef CErRvlcInfo RVLC_INFO; /* temp */
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#endif /* RVLC_INFO_H */
|
#endif /* RVLC_INFO_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,7 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s):
|
||||||
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
@ -89,24 +108,23 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#include "rvlcbit.h"
|
#include "rvlcbit.h"
|
||||||
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
function: rvlcReadBitFromBitstream
|
function: rvlcReadBitFromBitstream
|
||||||
|
|
||||||
description: This function returns a bit from the bitstream according to read direction.
|
description: This function returns a bit from the bitstream according to
|
||||||
It is called very often, therefore it makes sense to inline it (runtime).
|
read direction. It is called very often, therefore it makes sense to inline it
|
||||||
|
(runtime).
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
input: - bitstream
|
input: - bitstream
|
||||||
- pPosition
|
- pPosition
|
||||||
- readDirection
|
- readDirection
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: - bit from bitstream
|
return: - bit from bitstream
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
UCHAR rvlcReadBitFromBitstream (HANDLE_FDK_BITSTREAM bs,
|
UCHAR rvlcReadBitFromBitstream(HANDLE_FDK_BITSTREAM bs, INT *pPosition,
|
||||||
USHORT *pPosition,
|
UCHAR readDirection) {
|
||||||
UCHAR readDirection)
|
|
||||||
{
|
|
||||||
UINT bit;
|
UINT bit;
|
||||||
INT readBitOffset = *pPosition - FDKgetBitCnt(bs);
|
INT readBitOffset = *pPosition - FDKgetBitCnt(bs);
|
||||||
|
|
||||||
@ -128,4 +146,3 @@ UCHAR rvlcReadBitFromBitstream (HANDLE_FDK_BITSTREAM bs,
|
|||||||
|
|
||||||
return (bit);
|
return (bit);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,11 +90,12 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder ***************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Robert Weidner (DSP Solutions)
|
Author(s): Robert Weidner (DSP Solutions)
|
||||||
|
|
||||||
Description: RVLC Decoder: Bitstream reading
|
Description: RVLC Decoder: Bitstream reading
|
||||||
|
|
||||||
*******************************************************************************/
|
*******************************************************************************/
|
||||||
@ -91,13 +103,9 @@ amm-info@iis.fraunhofer.de
|
|||||||
#ifndef RVLCBIT_H
|
#ifndef RVLCBIT_H
|
||||||
#define RVLCBIT_H
|
#define RVLCBIT_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "rvlc.h"
|
#include "rvlc.h"
|
||||||
|
|
||||||
UCHAR rvlcReadBitFromBitstream (HANDLE_FDK_BITSTREAM bs,
|
UCHAR rvlcReadBitFromBitstream(HANDLE_FDK_BITSTREAM bs, INT *pPosition,
|
||||||
USHORT *pPosition,
|
|
||||||
UCHAR readDirection);
|
UCHAR readDirection);
|
||||||
|
|
||||||
|
|
||||||
#endif /* RVLCBIT_H */
|
#endif /* RVLCBIT_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,7 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s):
|
||||||
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
@ -89,37 +108,33 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#include "rvlcconceal.h"
|
#include "rvlcconceal.h"
|
||||||
|
|
||||||
|
|
||||||
#include "block.h"
|
#include "block.h"
|
||||||
#include "rvlc.h"
|
#include "rvlc.h"
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
function: calcRefValFwd
|
function: calcRefValFwd
|
||||||
|
|
||||||
description: The function determines the scalefactor which is closed to the scalefactorband
|
description: The function determines the scalefactor which is closed to the
|
||||||
conceal_min. The same is done for intensity data and noise energies.
|
scalefactorband conceal_min. The same is done for intensity data and noise
|
||||||
|
energies.
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
output: - reference value scf
|
output: - reference value scf
|
||||||
- reference value internsity data
|
- reference value internsity data
|
||||||
- reference value noise energy
|
- reference value noise energy
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: -
|
return: -
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
static
|
static void calcRefValFwd(CErRvlcInfo *pRvlc,
|
||||||
void calcRefValFwd (CErRvlcInfo *pRvlc,
|
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
int *refIsFwd,
|
int *refIsFwd, int *refNrgFwd, int *refScfFwd) {
|
||||||
int *refNrgFwd,
|
|
||||||
int *refScfFwd)
|
|
||||||
{
|
|
||||||
int band, bnds, group, startBand;
|
int band, bnds, group, startBand;
|
||||||
int idIs, idNrg, idScf;
|
int idIs, idNrg, idScf;
|
||||||
int conceal_min, conceal_group_min;
|
int conceal_min, conceal_group_min;
|
||||||
int MaximumScaleFactorBands;
|
int MaximumScaleFactorBands;
|
||||||
|
|
||||||
|
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == BLOCK_SHORT)
|
||||||
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence)
|
|
||||||
MaximumScaleFactorBands = 16;
|
MaximumScaleFactorBands = 16;
|
||||||
else
|
else
|
||||||
MaximumScaleFactorBands = 64;
|
MaximumScaleFactorBands = 64;
|
||||||
@ -132,8 +147,10 @@ void calcRefValFwd (CErRvlcInfo *pRvlc,
|
|||||||
|
|
||||||
/* set reference values */
|
/* set reference values */
|
||||||
*refIsFwd = -SF_OFFSET;
|
*refIsFwd = -SF_OFFSET;
|
||||||
*refNrgFwd = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET - 90 - 256;
|
*refNrgFwd = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain -
|
||||||
*refScfFwd = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET;
|
SF_OFFSET - 90 - 256;
|
||||||
|
*refScfFwd =
|
||||||
|
pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain - SF_OFFSET;
|
||||||
|
|
||||||
startBand = conceal_min - 1;
|
startBand = conceal_min - 1;
|
||||||
for (group = conceal_group_min; group >= 0; group--) {
|
for (group = conceal_group_min; group >= 0; group--) {
|
||||||
@ -145,19 +162,22 @@ void calcRefValFwd (CErRvlcInfo *pRvlc,
|
|||||||
case INTENSITY_HCB:
|
case INTENSITY_HCB:
|
||||||
case INTENSITY_HCB2:
|
case INTENSITY_HCB2:
|
||||||
if (idIs) {
|
if (idIs) {
|
||||||
*refIsFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
*refIsFwd =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
idIs = 0; /* reference value has been set */
|
idIs = 0; /* reference value has been set */
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case NOISE_HCB:
|
case NOISE_HCB:
|
||||||
if (idNrg) {
|
if (idNrg) {
|
||||||
*refNrgFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
*refNrgFwd =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
idNrg = 0; /* reference value has been set */
|
idNrg = 0; /* reference value has been set */
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
if (idScf) {
|
if (idScf) {
|
||||||
*refScfFwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
*refScfFwd =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
idScf = 0; /* reference value has been set */
|
idScf = 0; /* reference value has been set */
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
@ -165,35 +185,32 @@ void calcRefValFwd (CErRvlcInfo *pRvlc,
|
|||||||
}
|
}
|
||||||
startBand = pRvlc->maxSfbTransmitted - 1;
|
startBand = pRvlc->maxSfbTransmitted - 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
function: calcRefValBwd
|
function: calcRefValBwd
|
||||||
|
|
||||||
description: The function determines the scalefactor which is closed to the scalefactorband
|
description: The function determines the scalefactor which is closed to the
|
||||||
conceal_max. The same is done for intensity data and noise energies.
|
scalefactorband conceal_max. The same is done for intensity data and noise
|
||||||
|
energies.
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
output: - reference value scf
|
output: - reference value scf
|
||||||
- reference value internsity data
|
- reference value internsity data
|
||||||
- reference value noise energy
|
- reference value noise energy
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: -
|
return: -
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
static
|
static void calcRefValBwd(CErRvlcInfo *pRvlc,
|
||||||
void calcRefValBwd (CErRvlcInfo *pRvlc,
|
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
int *refIsBwd,
|
int *refIsBwd, int *refNrgBwd, int *refScfBwd) {
|
||||||
int *refNrgBwd,
|
|
||||||
int *refScfBwd)
|
|
||||||
{
|
|
||||||
int band, bnds, group, startBand;
|
int band, bnds, group, startBand;
|
||||||
int idIs, idNrg, idScf;
|
int idIs, idNrg, idScf;
|
||||||
int conceal_max, conceal_group_max;
|
int conceal_max, conceal_group_max;
|
||||||
int MaximumScaleFactorBands;
|
int MaximumScaleFactorBands;
|
||||||
|
|
||||||
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence)
|
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == BLOCK_SHORT)
|
||||||
MaximumScaleFactorBands = 16;
|
MaximumScaleFactorBands = 16;
|
||||||
else
|
else
|
||||||
MaximumScaleFactorBands = 64;
|
MaximumScaleFactorBands = 64;
|
||||||
@ -206,7 +223,8 @@ void calcRefValBwd (CErRvlcInfo *pRvlc,
|
|||||||
|
|
||||||
/* set reference values */
|
/* set reference values */
|
||||||
*refIsBwd = pRvlc->dpcm_is_last_position - SF_OFFSET;
|
*refIsBwd = pRvlc->dpcm_is_last_position - SF_OFFSET;
|
||||||
*refNrgBwd = pRvlc->rev_global_gain + pRvlc->dpcm_noise_last_position - SF_OFFSET - 90 - 256 + pRvlc->dpcm_noise_nrg;
|
*refNrgBwd = pRvlc->rev_global_gain + pRvlc->dpcm_noise_last_position -
|
||||||
|
SF_OFFSET - 90 - 256 + pRvlc->dpcm_noise_nrg;
|
||||||
*refScfBwd = pRvlc->rev_global_gain - SF_OFFSET;
|
*refScfBwd = pRvlc->rev_global_gain - SF_OFFSET;
|
||||||
|
|
||||||
startBand = conceal_max + 1;
|
startBand = conceal_max + 1;
|
||||||
@ -221,19 +239,22 @@ void calcRefValBwd (CErRvlcInfo *pRvlc,
|
|||||||
case INTENSITY_HCB:
|
case INTENSITY_HCB:
|
||||||
case INTENSITY_HCB2:
|
case INTENSITY_HCB2:
|
||||||
if (idIs) {
|
if (idIs) {
|
||||||
*refIsBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
*refIsBwd =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
idIs = 0; /* reference value has been set */
|
idIs = 0; /* reference value has been set */
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
case NOISE_HCB:
|
case NOISE_HCB:
|
||||||
if (idNrg) {
|
if (idNrg) {
|
||||||
*refNrgBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
*refNrgBwd =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
idNrg = 0; /* reference value has been set */
|
idNrg = 0; /* reference value has been set */
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
if (idScf) {
|
if (idScf) {
|
||||||
*refScfBwd = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
*refScfBwd =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
idScf = 0; /* reference value has been set */
|
idScf = 0; /* reference value has been set */
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
@ -241,51 +262,52 @@ void calcRefValBwd (CErRvlcInfo *pRvlc,
|
|||||||
}
|
}
|
||||||
startBand = 0;
|
startBand = 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
function: BidirectionalEstimation_UseLowerScfOfCurrentFrame
|
function: BidirectionalEstimation_UseLowerScfOfCurrentFrame
|
||||||
|
|
||||||
description: This approach by means of bidirectional estimation is generally performed when
|
description: This approach by means of bidirectional estimation is generally
|
||||||
a single bit error has been detected, the bit error can be isolated between
|
performed when a single bit error has been detected, the bit error can be
|
||||||
'conceal_min' and 'conceal_max' and the 'sf_concealment' flag is not set. The
|
isolated between 'conceal_min' and 'conceal_max' and the 'sf_concealment' flag
|
||||||
sets of scalefactors decoded in forward and backward direction are compared
|
is not set. The sets of scalefactors decoded in forward and backward direction
|
||||||
with each other. The smaller scalefactor will be considered as the correct one
|
are compared with each other. The smaller scalefactor will be considered as the
|
||||||
respectively. The reconstruction of the scalefactors with this approach archieve
|
correct one respectively. The reconstruction of the scalefactors with this
|
||||||
good results in audio quality. The strategy must be applied to scalefactors,
|
approach archieve good results in audio quality. The strategy must be applied to
|
||||||
intensity data and noise energy seperately.
|
scalefactors, intensity data and noise energy seperately.
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
output: Concealed scalefactor, noise energy and intensity data between conceal_min and
|
output: Concealed scalefactor, noise energy and intensity data between
|
||||||
conceal_max
|
conceal_min and conceal_max
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: -
|
return: -
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
void BidirectionalEstimation_UseLowerScfOfCurrentFrame (CAacDecoderChannelInfo *pAacDecoderChannelInfo)
|
void BidirectionalEstimation_UseLowerScfOfCurrentFrame(
|
||||||
{
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo) {
|
||||||
CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
CErRvlcInfo *pRvlc =
|
||||||
|
&pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
||||||
int band, bnds, startBand, endBand, group;
|
int band, bnds, startBand, endBand, group;
|
||||||
int conceal_min, conceal_max;
|
int conceal_min, conceal_max;
|
||||||
int conceal_group_min, conceal_group_max;
|
int conceal_group_min, conceal_group_max;
|
||||||
int MaximumScaleFactorBands;
|
int MaximumScaleFactorBands;
|
||||||
|
|
||||||
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) {
|
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == BLOCK_SHORT) {
|
||||||
MaximumScaleFactorBands = 16;
|
MaximumScaleFactorBands = 16;
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
MaximumScaleFactorBands = 64;
|
MaximumScaleFactorBands = 64;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* If an error was detected just in forward or backward direction, set the corresponding border for concealment to a
|
/* If an error was detected just in forward or backward direction, set the
|
||||||
appropriate scalefactor band. The border is set to first or last sfb respectively, because the error will possibly
|
corresponding border for concealment to a appropriate scalefactor band. The
|
||||||
not follow directly after the corrupt bit but just after decoding some more (wrong) scalefactors. */
|
border is set to first or last sfb respectively, because the error will
|
||||||
if (pRvlc->conceal_min == CONCEAL_MIN_INIT)
|
possibly not follow directly after the corrupt bit but just after decoding
|
||||||
pRvlc->conceal_min = 0;
|
some more (wrong) scalefactors. */
|
||||||
|
if (pRvlc->conceal_min == CONCEAL_MIN_INIT) pRvlc->conceal_min = 0;
|
||||||
|
|
||||||
if (pRvlc->conceal_max == CONCEAL_MAX_INIT)
|
if (pRvlc->conceal_max == CONCEAL_MAX_INIT)
|
||||||
pRvlc->conceal_max = (pRvlc->numWindowGroups-1)*16+pRvlc->maxSfbTransmitted-1;
|
pRvlc->conceal_max =
|
||||||
|
(pRvlc->numWindowGroups - 1) * 16 + pRvlc->maxSfbTransmitted - 1;
|
||||||
|
|
||||||
conceal_min = pRvlc->conceal_min % MaximumScaleFactorBands;
|
conceal_min = pRvlc->conceal_min % MaximumScaleFactorBands;
|
||||||
conceal_group_min = pRvlc->conceal_min / MaximumScaleFactorBands;
|
conceal_group_min = pRvlc->conceal_min / MaximumScaleFactorBands;
|
||||||
@ -293,13 +315,14 @@ void BidirectionalEstimation_UseLowerScfOfCurrentFrame (CAacDecoderChannelInfo *
|
|||||||
conceal_group_max = pRvlc->conceal_max / MaximumScaleFactorBands;
|
conceal_group_max = pRvlc->conceal_max / MaximumScaleFactorBands;
|
||||||
|
|
||||||
if (pRvlc->conceal_min == pRvlc->conceal_max) {
|
if (pRvlc->conceal_min == pRvlc->conceal_max) {
|
||||||
|
|
||||||
int refIsFwd, refNrgFwd, refScfFwd;
|
int refIsFwd, refNrgFwd, refScfFwd;
|
||||||
int refIsBwd, refNrgBwd, refScfBwd;
|
int refIsBwd, refNrgBwd, refScfBwd;
|
||||||
|
|
||||||
bnds = pRvlc->conceal_min;
|
bnds = pRvlc->conceal_min;
|
||||||
calcRefValFwd(pRvlc,pAacDecoderChannelInfo,&refIsFwd,&refNrgFwd,&refScfFwd);
|
calcRefValFwd(pRvlc, pAacDecoderChannelInfo, &refIsFwd, &refNrgFwd,
|
||||||
calcRefValBwd(pRvlc,pAacDecoderChannelInfo,&refIsBwd,&refNrgBwd,&refScfBwd);
|
&refScfFwd);
|
||||||
|
calcRefValBwd(pRvlc, pAacDecoderChannelInfo, &refIsBwd, &refNrgBwd,
|
||||||
|
&refScfBwd);
|
||||||
|
|
||||||
switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) {
|
switch (pAacDecoderChannelInfo->pDynData->aCodeBook[bnds]) {
|
||||||
case ZERO_HCB:
|
case ZERO_HCB:
|
||||||
@ -324,12 +347,18 @@ void BidirectionalEstimation_UseLowerScfOfCurrentFrame (CAacDecoderChannelInfo *
|
|||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refScfBwd;
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = refScfBwd;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
} else {
|
||||||
else {
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_max] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_max];
|
.aRvlcScfFwd[pRvlc->conceal_max] =
|
||||||
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_min] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_min];
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[pRvlc->conceal_max];
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[pRvlc->conceal_min] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfFwd[pRvlc->conceal_min];
|
||||||
|
|
||||||
/* consider the smaller of the forward and backward decoded value as the correct one */
|
/* consider the smaller of the forward and backward decoded value as the
|
||||||
|
* correct one */
|
||||||
startBand = conceal_min;
|
startBand = conceal_min;
|
||||||
if (conceal_group_min == conceal_group_max)
|
if (conceal_group_min == conceal_group_max)
|
||||||
endBand = conceal_max;
|
endBand = conceal_max;
|
||||||
@ -339,14 +368,16 @@ void BidirectionalEstimation_UseLowerScfOfCurrentFrame (CAacDecoderChannelInfo *
|
|||||||
for (group = conceal_group_min; group <= conceal_group_max; group++) {
|
for (group = conceal_group_min; group <= conceal_group_max; group++) {
|
||||||
for (band = startBand; band <= endBand; band++) {
|
for (band = startBand; band <= endBand; band++) {
|
||||||
bnds = 16 * group + band;
|
bnds = 16 * group + band;
|
||||||
if (pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds] < pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds])
|
if (pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds] <
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds])
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
else
|
else
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
}
|
}
|
||||||
startBand = 0;
|
startBand = 0;
|
||||||
if ((group+1) == conceal_group_max)
|
if ((group + 1) == conceal_group_max) endBand = conceal_max;
|
||||||
endBand = conceal_max;
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -358,17 +389,18 @@ void BidirectionalEstimation_UseLowerScfOfCurrentFrame (CAacDecoderChannelInfo *
|
|||||||
for (group = 0; group <= conceal_group_min; group++) {
|
for (group = 0; group <= conceal_group_min; group++) {
|
||||||
for (band = 0; band < endBand; band++) {
|
for (band = 0; band < endBand; band++) {
|
||||||
bnds = 16 * group + band;
|
bnds = 16 * group + band;
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
}
|
}
|
||||||
if ((group+1) == conceal_group_min)
|
if ((group + 1) == conceal_group_min) endBand = conceal_min;
|
||||||
endBand = conceal_min;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
startBand = conceal_max + 1;
|
startBand = conceal_max + 1;
|
||||||
for (group = conceal_group_max; group < pRvlc->numWindowGroups; group++) {
|
for (group = conceal_group_max; group < pRvlc->numWindowGroups; group++) {
|
||||||
for (band = startBand; band < pRvlc->maxSfbTransmitted; band++) {
|
for (band = startBand; band < pRvlc->maxSfbTransmitted; band++) {
|
||||||
bnds = 16 * group + band;
|
bnds = 16 * group + band;
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
}
|
}
|
||||||
startBand = 0;
|
startBand = 0;
|
||||||
}
|
}
|
||||||
@ -377,62 +409,70 @@ void BidirectionalEstimation_UseLowerScfOfCurrentFrame (CAacDecoderChannelInfo *
|
|||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
function: BidirectionalEstimation_UseScfOfPrevFrameAsReference
|
function: BidirectionalEstimation_UseScfOfPrevFrameAsReference
|
||||||
|
|
||||||
description: This approach by means of bidirectional estimation is generally performed when
|
description: This approach by means of bidirectional estimation is generally
|
||||||
a single bit error has been detected, the bit error can be isolated between
|
performed when a single bit error has been detected, the bit error can be
|
||||||
'conceal_min' and 'conceal_max', the 'sf_concealment' flag is set and the
|
isolated between 'conceal_min' and 'conceal_max', the 'sf_concealment' flag is
|
||||||
previous frame has the same block type as the current frame. The scalefactor
|
set and the previous frame has the same block type as the current frame. The
|
||||||
decoded in forward and backward direction and the scalefactor of the previous
|
scalefactor decoded in forward and backward direction and the scalefactor of the
|
||||||
frame are compared with each other. The smaller scalefactor will be considered
|
previous frame are compared with each other. The smaller scalefactor will be
|
||||||
as the correct one. At this the codebook of the previous and current frame must
|
considered as the correct one. At this the codebook of the previous and current
|
||||||
be of the same set (scf, nrg, is) in each scalefactorband. Otherwise the
|
frame must be of the same set (scf, nrg, is) in each scalefactorband. Otherwise
|
||||||
scalefactor of the previous frame is not considered in the minimum calculation.
|
the scalefactor of the previous frame is not considered in the minimum
|
||||||
The reconstruction of the scalefactors with this approach archieve good results
|
calculation. The reconstruction of the scalefactors with this approach archieve
|
||||||
in audio quality. The strategy must be applied to scalefactors, intensity data
|
good results in audio quality. The strategy must be applied to scalefactors,
|
||||||
and noise energy seperately.
|
intensity data and noise energy seperately.
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
output: Concealed scalefactor, noise energy and intensity data between conceal_min and
|
output: Concealed scalefactor, noise energy and intensity data between
|
||||||
conceal_max
|
conceal_min and conceal_max
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: -
|
return: -
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
void BidirectionalEstimation_UseScfOfPrevFrameAsReference(
|
void BidirectionalEstimation_UseScfOfPrevFrameAsReference(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo) {
|
||||||
)
|
CErRvlcInfo *pRvlc =
|
||||||
{
|
&pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
||||||
CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
|
||||||
int band, bnds, startBand, endBand, group;
|
int band, bnds, startBand, endBand, group;
|
||||||
int conceal_min, conceal_max;
|
int conceal_min, conceal_max;
|
||||||
int conceal_group_min, conceal_group_max;
|
int conceal_group_min, conceal_group_max;
|
||||||
int MaximumScaleFactorBands;
|
int MaximumScaleFactorBands;
|
||||||
int commonMin;
|
SHORT commonMin;
|
||||||
|
|
||||||
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence) {
|
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == BLOCK_SHORT) {
|
||||||
MaximumScaleFactorBands = 16;
|
MaximumScaleFactorBands = 16;
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
MaximumScaleFactorBands = 64;
|
MaximumScaleFactorBands = 64;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* If an error was detected just in forward or backward direction, set the corresponding border for concealment to a
|
/* If an error was detected just in forward or backward direction, set the
|
||||||
appropriate scalefactor band. The border is set to first or last sfb respectively, because the error will possibly
|
corresponding border for concealment to a appropriate scalefactor band. The
|
||||||
not follow directly after the corrupt bit but just after decoding some more (wrong) scalefactors. */
|
border is set to first or last sfb respectively, because the error will
|
||||||
if (pRvlc->conceal_min == CONCEAL_MIN_INIT)
|
possibly not follow directly after the corrupt bit but just after decoding
|
||||||
pRvlc->conceal_min = 0;
|
some more (wrong) scalefactors. */
|
||||||
|
if (pRvlc->conceal_min == CONCEAL_MIN_INIT) pRvlc->conceal_min = 0;
|
||||||
|
|
||||||
if (pRvlc->conceal_max == CONCEAL_MAX_INIT)
|
if (pRvlc->conceal_max == CONCEAL_MAX_INIT)
|
||||||
pRvlc->conceal_max = (pRvlc->numWindowGroups-1)*16+pRvlc->maxSfbTransmitted-1;
|
pRvlc->conceal_max =
|
||||||
|
(pRvlc->numWindowGroups - 1) * 16 + pRvlc->maxSfbTransmitted - 1;
|
||||||
|
|
||||||
conceal_min = pRvlc->conceal_min % MaximumScaleFactorBands;
|
conceal_min = pRvlc->conceal_min % MaximumScaleFactorBands;
|
||||||
conceal_group_min = pRvlc->conceal_min / MaximumScaleFactorBands;
|
conceal_group_min = pRvlc->conceal_min / MaximumScaleFactorBands;
|
||||||
conceal_max = pRvlc->conceal_max % MaximumScaleFactorBands;
|
conceal_max = pRvlc->conceal_max % MaximumScaleFactorBands;
|
||||||
conceal_group_max = pRvlc->conceal_max / MaximumScaleFactorBands;
|
conceal_group_max = pRvlc->conceal_max / MaximumScaleFactorBands;
|
||||||
|
|
||||||
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_max] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_max];
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[pRvlc->conceal_min] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[pRvlc->conceal_min];
|
.aRvlcScfFwd[pRvlc->conceal_max] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[pRvlc->conceal_max];
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[pRvlc->conceal_min] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfFwd[pRvlc->conceal_min];
|
||||||
|
|
||||||
/* consider the smaller of the forward and backward decoded value as the correct one */
|
/* consider the smaller of the forward and backward decoded value as the
|
||||||
|
* correct one */
|
||||||
startBand = conceal_min;
|
startBand = conceal_min;
|
||||||
if (conceal_group_min == conceal_group_max)
|
if (conceal_group_min == conceal_group_max)
|
||||||
endBand = conceal_max;
|
endBand = conceal_max;
|
||||||
@ -449,41 +489,70 @@ void BidirectionalEstimation_UseScfOfPrevFrameAsReference (
|
|||||||
|
|
||||||
case INTENSITY_HCB:
|
case INTENSITY_HCB:
|
||||||
case INTENSITY_HCB2:
|
case INTENSITY_HCB2:
|
||||||
if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB) || (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB2) ) {
|
if ((pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
.aRvlcPreviousCodebook[bnds] == INTENSITY_HCB) ||
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]);
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
}
|
.aRvlcPreviousCodebook[bnds] == INTENSITY_HCB2)) {
|
||||||
else {
|
commonMin = fMin(
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
fMin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
|
.aRvlcPreviousScaleFactor[bnds]);
|
||||||
|
} else {
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = fMin(
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case NOISE_HCB:
|
case NOISE_HCB:
|
||||||
if ( pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==NOISE_HCB ) {
|
if (pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
.aRvlcPreviousCodebook[bnds] == NOISE_HCB) {
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]);
|
commonMin = fMin(
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
fMin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
|
.aRvlcPreviousScaleFactor[bnds]);
|
||||||
} else {
|
} else {
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = fMin(
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=ZERO_HCB)
|
if ((pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
&& (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=NOISE_HCB)
|
.aRvlcPreviousCodebook[bnds] != ZERO_HCB) &&
|
||||||
&& (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB)
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
&& (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB2) )
|
.aRvlcPreviousCodebook[bnds] != NOISE_HCB) &&
|
||||||
{
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds], pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
.aRvlcPreviousCodebook[bnds] != INTENSITY_HCB) &&
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]);
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
|
.aRvlcPreviousCodebook[bnds] != INTENSITY_HCB2)) {
|
||||||
|
commonMin = fMin(
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
fMin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
|
.aRvlcPreviousScaleFactor[bnds]);
|
||||||
} else {
|
} else {
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = fMin(
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
startBand = 0;
|
startBand = 0;
|
||||||
if ((group+1) == conceal_group_max)
|
if ((group + 1) == conceal_group_max) endBand = conceal_max;
|
||||||
endBand = conceal_max;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/* now copy all data to the output buffer which needs not to be concealed */
|
/* now copy all data to the output buffer which needs not to be concealed */
|
||||||
@ -494,17 +563,18 @@ void BidirectionalEstimation_UseScfOfPrevFrameAsReference (
|
|||||||
for (group = 0; group <= conceal_group_min; group++) {
|
for (group = 0; group <= conceal_group_min; group++) {
|
||||||
for (band = 0; band < endBand; band++) {
|
for (band = 0; band < endBand; band++) {
|
||||||
bnds = 16 * group + band;
|
bnds = 16 * group + band;
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
}
|
}
|
||||||
if ((group+1) == conceal_group_min)
|
if ((group + 1) == conceal_group_min) endBand = conceal_min;
|
||||||
endBand = conceal_min;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
startBand = conceal_max + 1;
|
startBand = conceal_max + 1;
|
||||||
for (group = conceal_group_max; group < pRvlc->numWindowGroups; group++) {
|
for (group = conceal_group_max; group < pRvlc->numWindowGroups; group++) {
|
||||||
for (band = startBand; band < pRvlc->maxSfbTransmitted; band++) {
|
for (band = startBand; band < pRvlc->maxSfbTransmitted; band++) {
|
||||||
bnds = 16 * group + band;
|
bnds = 16 * group + band;
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
}
|
}
|
||||||
startBand = 0;
|
startBand = 0;
|
||||||
}
|
}
|
||||||
@ -513,41 +583,39 @@ void BidirectionalEstimation_UseScfOfPrevFrameAsReference (
|
|||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
function: StatisticalEstimation
|
function: StatisticalEstimation
|
||||||
|
|
||||||
description: This approach by means of statistical estimation is generally performed when
|
description: This approach by means of statistical estimation is generally
|
||||||
both the start value and the end value are different and no further errors have
|
performed when both the start value and the end value are different and no
|
||||||
been detected. Considering the forward and backward decoded scalefactors, the
|
further errors have been detected. Considering the forward and backward decoded
|
||||||
set with the lower scalefactors in sum will be considered as the correct one.
|
scalefactors, the set with the lower scalefactors in sum will be considered as
|
||||||
The scalefactors are differentially encoded. Normally it would reach to compare
|
the correct one. The scalefactors are differentially encoded. Normally it would
|
||||||
one pair of the forward and backward decoded scalefactors to specify the lower
|
reach to compare one pair of the forward and backward decoded scalefactors to
|
||||||
set. But having detected no further errors does not necessarily mean the absence
|
specify the lower set. But having detected no further errors does not
|
||||||
of errors. Therefore all scalefactors decoded in forward and backward direction
|
necessarily mean the absence of errors. Therefore all scalefactors decoded in
|
||||||
are summed up seperately. The set with the lower sum will be used. The strategy
|
forward and backward direction are summed up seperately. The set with the lower
|
||||||
must be applied to scalefactors, intensity data and noise energy seperately.
|
sum will be used. The strategy must be applied to scalefactors, intensity data
|
||||||
|
and noise energy seperately.
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
output: Concealed scalefactor, noise energy and intensity data
|
output: Concealed scalefactor, noise energy and intensity data
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: -
|
return: -
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
void StatisticalEstimation (CAacDecoderChannelInfo *pAacDecoderChannelInfo)
|
void StatisticalEstimation(CAacDecoderChannelInfo *pAacDecoderChannelInfo) {
|
||||||
{
|
CErRvlcInfo *pRvlc =
|
||||||
CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
&pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
||||||
int band, bnds, group;
|
int band, bnds, group;
|
||||||
int sumIsFwd, sumIsBwd; /* sum of intensity data forward/backward */
|
int sumIsFwd, sumIsBwd; /* sum of intensity data forward/backward */
|
||||||
int sumNrgFwd, sumNrgBwd; /* sum of noise energy data forward/backward */
|
int sumNrgFwd, sumNrgBwd; /* sum of noise energy data forward/backward */
|
||||||
int sumScfFwd, sumScfBwd; /* sum of scalefactor data forward/backward */
|
int sumScfFwd, sumScfBwd; /* sum of scalefactor data forward/backward */
|
||||||
int useIsFwd,useNrgFwd,useScfFwd; /* the flags signals the elements which are used for the final result */
|
int useIsFwd, useNrgFwd, useScfFwd; /* the flags signals the elements which
|
||||||
int MaximumScaleFactorBands;
|
are used for the final result */
|
||||||
|
|
||||||
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence)
|
|
||||||
MaximumScaleFactorBands = 16;
|
|
||||||
else
|
|
||||||
MaximumScaleFactorBands = 64;
|
|
||||||
|
|
||||||
sumIsFwd = sumIsBwd = sumNrgFwd = sumNrgBwd = sumScfFwd = sumScfBwd = 0;
|
sumIsFwd = sumIsBwd = sumNrgFwd = sumNrgBwd = sumScfFwd = sumScfBwd = 0;
|
||||||
useIsFwd = useNrgFwd = useScfFwd = 0;
|
useIsFwd = useNrgFwd = useScfFwd = 0;
|
||||||
|
|
||||||
/* calculate sum of each group (scf,nrg,is) of forward and backward direction */
|
/* calculate sum of each group (scf,nrg,is) of forward and backward direction
|
||||||
|
*/
|
||||||
for (group = 0; group < pRvlc->numWindowGroups; group++) {
|
for (group = 0; group < pRvlc->numWindowGroups; group++) {
|
||||||
for (band = 0; band < pRvlc->maxSfbTransmitted; band++) {
|
for (band = 0; band < pRvlc->maxSfbTransmitted; band++) {
|
||||||
bnds = 16 * group + band;
|
bnds = 16 * group + band;
|
||||||
@ -557,32 +625,35 @@ void StatisticalEstimation (CAacDecoderChannelInfo *pAacDecoderChannelInfo)
|
|||||||
|
|
||||||
case INTENSITY_HCB:
|
case INTENSITY_HCB:
|
||||||
case INTENSITY_HCB2:
|
case INTENSITY_HCB2:
|
||||||
sumIsFwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
sumIsFwd +=
|
||||||
sumIsBwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
|
sumIsBwd +=
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case NOISE_HCB:
|
case NOISE_HCB:
|
||||||
sumNrgFwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
sumNrgFwd +=
|
||||||
sumNrgBwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
|
sumNrgBwd +=
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
break;
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
sumScfFwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
sumScfFwd +=
|
||||||
sumScfBwd += pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
|
sumScfBwd +=
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/* find for each group (scf,nrg,is) the correct direction */
|
/* find for each group (scf,nrg,is) the correct direction */
|
||||||
if ( sumIsFwd < sumIsBwd )
|
if (sumIsFwd < sumIsBwd) useIsFwd = 1;
|
||||||
useIsFwd = 1;
|
|
||||||
|
|
||||||
if ( sumNrgFwd < sumNrgBwd )
|
if (sumNrgFwd < sumNrgBwd) useNrgFwd = 1;
|
||||||
useNrgFwd = 1;
|
|
||||||
|
|
||||||
if ( sumScfFwd < sumScfBwd )
|
if (sumScfFwd < sumScfBwd) useScfFwd = 1;
|
||||||
useScfFwd = 1;
|
|
||||||
|
|
||||||
/* conceal each group (scf,nrg,is) */
|
/* conceal each group (scf,nrg,is) */
|
||||||
for (group = 0; group < pRvlc->numWindowGroups; group++) {
|
for (group = 0; group < pRvlc->numWindowGroups; group++) {
|
||||||
@ -595,59 +666,59 @@ void StatisticalEstimation (CAacDecoderChannelInfo *pAacDecoderChannelInfo)
|
|||||||
case INTENSITY_HCB:
|
case INTENSITY_HCB:
|
||||||
case INTENSITY_HCB2:
|
case INTENSITY_HCB2:
|
||||||
if (useIsFwd)
|
if (useIsFwd)
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
else
|
else
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case NOISE_HCB:
|
case NOISE_HCB:
|
||||||
if (useNrgFwd)
|
if (useNrgFwd)
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
else
|
else
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
break;
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
if (useScfFwd)
|
if (useScfFwd)
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds];
|
||||||
else
|
else
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds];
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------------------------
|
||||||
description: Approach by means of predictive interpolation
|
description: Approach by means of predictive interpolation
|
||||||
This approach by means of predictive estimation is generally performed when
|
This approach by means of predictive estimation is generally
|
||||||
the error cannot be isolated between 'conceal_min' and 'conceal_max', the
|
performed when the error cannot be isolated between 'conceal_min' and
|
||||||
'sf_concealment' flag is set and the previous frame has the same block type
|
'conceal_max', the 'sf_concealment' flag is set and the previous frame has the
|
||||||
as the current frame. Check for each scalefactorband if the same type of data
|
same block type as the current frame. Check for each scalefactorband if the same
|
||||||
(scalefactor, internsity data, noise energies) is transmitted. If so use the
|
type of data (scalefactor, internsity data, noise energies) is transmitted. If
|
||||||
scalefactor (intensity data, noise energy) in the current frame. Otherwise set
|
so use the scalefactor (intensity data, noise energy) in the current frame.
|
||||||
the scalefactor (intensity data, noise energy) for this scalefactorband to zero.
|
Otherwise set the scalefactor (intensity data, noise energy) for this
|
||||||
|
scalefactorband to zero.
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
output: Concealed scalefactor, noise energy and intensity data
|
output: Concealed scalefactor, noise energy and intensity data
|
||||||
-----------------------------------------------------------------------------------------------
|
-----------------------------------------------------------------------------------------------
|
||||||
return: -
|
return: -
|
||||||
-------------------------------------------------------------------------------------------- */
|
--------------------------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
void PredictiveInterpolation(
|
void PredictiveInterpolation(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo) {
|
||||||
)
|
CErRvlcInfo *pRvlc =
|
||||||
{
|
&pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
||||||
CErRvlcInfo *pRvlc = &pAacDecoderChannelInfo->pComData->overlay.aac.erRvlcInfo;
|
|
||||||
int band, bnds, group;
|
int band, bnds, group;
|
||||||
int MaximumScaleFactorBands;
|
SHORT commonMin;
|
||||||
int commonMin;
|
|
||||||
|
|
||||||
if (GetWindowSequence(&pAacDecoderChannelInfo->icsInfo) == EightShortSequence)
|
|
||||||
MaximumScaleFactorBands = 16;
|
|
||||||
else
|
|
||||||
MaximumScaleFactorBands = 64;
|
|
||||||
|
|
||||||
for (group = 0; group < pRvlc->numWindowGroups; group++) {
|
for (group = 0; group < pRvlc->numWindowGroups; group++) {
|
||||||
for (band = 0; band < pRvlc->maxSfbTransmitted; band++) {
|
for (band = 0; band < pRvlc->maxSfbTransmitted; band++) {
|
||||||
@ -659,34 +730,54 @@ void PredictiveInterpolation (
|
|||||||
|
|
||||||
case INTENSITY_HCB:
|
case INTENSITY_HCB:
|
||||||
case INTENSITY_HCB2:
|
case INTENSITY_HCB2:
|
||||||
if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB) || (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==INTENSITY_HCB2) ) {
|
if ((pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
.aRvlcPreviousCodebook[bnds] == INTENSITY_HCB) ||
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]);
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
}
|
.aRvlcPreviousCodebook[bnds] == INTENSITY_HCB2)) {
|
||||||
else {
|
commonMin = fMin(
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
fMin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
|
.aRvlcPreviousScaleFactor[bnds]);
|
||||||
|
} else {
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = -110;
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = -110;
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case NOISE_HCB:
|
case NOISE_HCB:
|
||||||
if ( pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]==NOISE_HCB ) {
|
if (pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
.aRvlcPreviousCodebook[bnds] == NOISE_HCB) {
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]);
|
commonMin = fMin(
|
||||||
}
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
else {
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
fMin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
|
.aRvlcPreviousScaleFactor[bnds]);
|
||||||
|
} else {
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = -110;
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = -110;
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
if ( (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=ZERO_HCB)
|
if ((pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
&& (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=NOISE_HCB)
|
.aRvlcPreviousCodebook[bnds] != ZERO_HCB) &&
|
||||||
&& (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB)
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
&& (pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousCodebook[bnds]!=INTENSITY_HCB2) ) {
|
.aRvlcPreviousCodebook[bnds] != NOISE_HCB) &&
|
||||||
commonMin = FDKmin(pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfBwd[bnds]);
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = FDKmin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo.aRvlcPreviousScaleFactor[bnds]);
|
.aRvlcPreviousCodebook[bnds] != INTENSITY_HCB) &&
|
||||||
}
|
(pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
else {
|
.aRvlcPreviousCodebook[bnds] != INTENSITY_HCB2)) {
|
||||||
|
commonMin = fMin(
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac.aRvlcScfFwd[bnds],
|
||||||
|
pAacDecoderChannelInfo->pComData->overlay.aac
|
||||||
|
.aRvlcScfBwd[bnds]);
|
||||||
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] =
|
||||||
|
fMin(commonMin, pAacDecoderStaticChannelInfo->concealmentInfo
|
||||||
|
.aRvlcPreviousScaleFactor[bnds]);
|
||||||
|
} else {
|
||||||
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = 0;
|
pAacDecoderChannelInfo->pDynData->aScaleFactor[bnds] = 0;
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
@ -694,4 +785,3 @@ void PredictiveInterpolation (
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,7 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s):
|
||||||
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
@ -90,23 +109,19 @@ amm-info@iis.fraunhofer.de
|
|||||||
#ifndef RVLCCONCEAL_H
|
#ifndef RVLCCONCEAL_H
|
||||||
#define RVLCCONCEAL_H
|
#define RVLCCONCEAL_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "rvlc.h"
|
#include "rvlc.h"
|
||||||
|
|
||||||
void BidirectionalEstimation_UseLowerScfOfCurrentFrame(CAacDecoderChannelInfo *pAacDecoderChannelInfo);
|
void BidirectionalEstimation_UseLowerScfOfCurrentFrame(
|
||||||
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo);
|
||||||
|
|
||||||
void BidirectionalEstimation_UseScfOfPrevFrameAsReference(
|
void BidirectionalEstimation_UseScfOfPrevFrameAsReference(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo);
|
||||||
);
|
|
||||||
|
|
||||||
void StatisticalEstimation(CAacDecoderChannelInfo *pAacDecoderChannelInfo);
|
void StatisticalEstimation(CAacDecoderChannelInfo *pAacDecoderChannelInfo);
|
||||||
|
|
||||||
void PredictiveInterpolation(
|
void PredictiveInterpolation(
|
||||||
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo);
|
||||||
);
|
|
||||||
|
|
||||||
|
|
||||||
#endif /* RVLCCONCEAL_H */
|
#endif /* RVLCCONCEAL_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,35 +90,100 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Decoder **************************
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
Author(s): Josef Hoepfl
|
Author(s): Josef Hoepfl
|
||||||
|
|
||||||
Description: joint stereo processing
|
Description: joint stereo processing
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef STEREO_H
|
#ifndef STEREO_H
|
||||||
#define STEREO_H
|
#define STEREO_H
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
#include "machine_type.h"
|
#include "machine_type.h"
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
|
#include "common_fix.h"
|
||||||
|
|
||||||
enum
|
#define SFB_PER_PRED_BAND 2
|
||||||
{
|
|
||||||
JointStereoMaximumGroups = 8,
|
|
||||||
JointStereoMaximumBands = 64
|
|
||||||
};
|
|
||||||
|
|
||||||
typedef struct
|
#define SR_FNA_OUT \
|
||||||
{
|
0 /* Additional scaling of the CJointStereo_filterAndAdd()-output to avoid \
|
||||||
|
overflows. */
|
||||||
|
/* The scaling factor can be set to 0 if the coefficients are prescaled
|
||||||
|
* appropriately. */
|
||||||
|
/* Prescaling via factor SF_FNA_COEFFS is done at compile-time but should only
|
||||||
|
* be */
|
||||||
|
/* utilized if the coefficients are stored as FIXP_DBL. (cp. aac_rom.cpp/.h) */
|
||||||
|
|
||||||
|
/* The NO_CPLX_PRED_BUGFIX-switch was introduced to enable decoding of
|
||||||
|
conformance-streams in way that they are comparable to buggy
|
||||||
|
reference-streams. This is established by storing the prediction direction
|
||||||
|
for computation of the "downmix MDCT of previous frame". This is not standard
|
||||||
|
compliant. Once correct reference-streams for complex-stereo-prediction are
|
||||||
|
available this switch becomes obsolete.
|
||||||
|
*/
|
||||||
|
/*#define NO_CPLX_PRED_BUGFIX*/
|
||||||
|
|
||||||
|
enum { JointStereoMaximumGroups = 8, JointStereoMaximumBands = 64 };
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
UCHAR pred_dir; // 0 = prediction from mid to side channel, 1 = vice versa
|
||||||
|
UCHAR
|
||||||
|
igf_pred_dir; // 0 = prediction from mid to side channel, 1 = vice versa
|
||||||
|
UCHAR complex_coef; // 0 = alpha_q_im[x] is 0 for all prediction bands, 1 =
|
||||||
|
// alpha_q_im[x] is transmitted via bitstream
|
||||||
|
UCHAR use_prev_frame; // 0 = use current frame for MDST estimation, 1 = use
|
||||||
|
// current and previous frame
|
||||||
|
|
||||||
|
SHORT alpha_q_re[JointStereoMaximumGroups][JointStereoMaximumBands];
|
||||||
|
SHORT alpha_q_im[JointStereoMaximumGroups][JointStereoMaximumBands];
|
||||||
|
} CCplxPredictionData;
|
||||||
|
|
||||||
|
/* joint stereo scratch memory (valid for this frame) */
|
||||||
|
typedef struct {
|
||||||
UCHAR MsMaskPresent;
|
UCHAR MsMaskPresent;
|
||||||
UCHAR MsUsed[JointStereoMaximumBands]; /*!< every arry element contains flags for up to 8 groups */
|
UCHAR MsUsed[JointStereoMaximumBands]; /*!< every arry element contains flags
|
||||||
|
for up to 8 groups. this array is
|
||||||
|
also utilized for complex stereo
|
||||||
|
prediction. */
|
||||||
|
UCHAR IGF_MsMaskPresent;
|
||||||
|
|
||||||
|
UCHAR cplx_pred_flag; /* stereo complex prediction was signalled for this
|
||||||
|
frame */
|
||||||
|
UCHAR igf_cplx_pred_flag;
|
||||||
|
|
||||||
|
/* The following array and variable are needed for the case when INF is
|
||||||
|
* active */
|
||||||
|
FIXP_DBL store_dmx_re_prev[1024];
|
||||||
|
SHORT store_dmx_re_prev_e;
|
||||||
|
|
||||||
} CJointStereoData;
|
} CJointStereoData;
|
||||||
|
|
||||||
|
/* joint stereo persistent memory */
|
||||||
|
typedef struct {
|
||||||
|
UCHAR clearSpectralCoeffs; /* indicates that the spectral coeffs must be
|
||||||
|
cleared because the transform splitting active
|
||||||
|
flag of the left and right channel was different
|
||||||
|
*/
|
||||||
|
|
||||||
|
FIXP_DBL *scratchBuffer; /* pointer to scratch buffer */
|
||||||
|
|
||||||
|
FIXP_DBL
|
||||||
|
*spectralCoeffs[2]; /* spectral coefficients of this channel utilized by
|
||||||
|
complex stereo prediction */
|
||||||
|
SHORT *specScale[2];
|
||||||
|
|
||||||
|
SHORT alpha_q_re_prev[JointStereoMaximumGroups][JointStereoMaximumBands];
|
||||||
|
SHORT alpha_q_im_prev[JointStereoMaximumGroups][JointStereoMaximumBands];
|
||||||
|
|
||||||
|
UCHAR winSeqPrev;
|
||||||
|
UCHAR winShapePrev;
|
||||||
|
UCHAR winGroupsPrev;
|
||||||
|
|
||||||
|
} CJointStereoPersistentData;
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\brief Read joint stereo data from bitstream
|
\brief Read joint stereo data from bitstream
|
||||||
@ -115,20 +191,21 @@ typedef struct
|
|||||||
The function reads joint stereo data from bitstream.
|
The function reads joint stereo data from bitstream.
|
||||||
|
|
||||||
\param bs bit stream handle data source.
|
\param bs bit stream handle data source.
|
||||||
\param pJointStereoData pointer to stereo data structure to receive decoded data.
|
\param pJointStereoData pointer to stereo data structure to receive decoded
|
||||||
\param windowGroups number of window groups.
|
data. \param windowGroups number of window groups. \param
|
||||||
\param scaleFactorBandsTransmitted number of transmitted scalefactor bands.
|
scaleFactorBandsTransmitted number of transmitted scalefactor bands. \param
|
||||||
\param flags decoder flags
|
flags decoder flags
|
||||||
|
|
||||||
\return 0 on success, -1 on error.
|
\return 0 on success, -1 on error.
|
||||||
*/
|
*/
|
||||||
int CJointStereo_Read(
|
int CJointStereo_Read(HANDLE_FDK_BITSTREAM bs,
|
||||||
HANDLE_FDK_BITSTREAM bs,
|
|
||||||
CJointStereoData *pJointStereoData,
|
CJointStereoData *pJointStereoData,
|
||||||
int windowGroups,
|
const int windowGroups,
|
||||||
int scaleFactorBandsTransmitted,
|
const int scaleFactorBandsTransmitted,
|
||||||
UINT flags
|
const int max_sfb_ste_clear,
|
||||||
);
|
CJointStereoPersistentData *pJointStereoPersistentData,
|
||||||
|
CCplxPredictionData *cplxPredictionData,
|
||||||
|
int cplxPredictionActiv, int scaleFactorBandsTotal,
|
||||||
|
int windowSequence, const UINT flags);
|
||||||
|
|
||||||
#endif /* #ifndef STEREO_H */
|
#endif /* #ifndef STEREO_H */
|
||||||
|
|||||||
439
libAACdec/src/usacdec_ace_d4t64.cpp
Normal file
439
libAACdec/src/usacdec_ace_d4t64.cpp
Normal file
@ -0,0 +1,439 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s):
|
||||||
|
|
||||||
|
Description: ACELP
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#include "usacdec_ace_d4t64.h"
|
||||||
|
|
||||||
|
#define L_SUBFR 64 /* Subframe size */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* D_ACELP_add_pulse
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* pos I: position of pulse
|
||||||
|
* nb_pulse I: number of pulses
|
||||||
|
* track I: track
|
||||||
|
* code O: fixed codebook
|
||||||
|
*
|
||||||
|
* Function:
|
||||||
|
* Add pulses to fixed codebook
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* void
|
||||||
|
*/
|
||||||
|
static void D_ACELP_add_pulse(SHORT pos[], SHORT nb_pulse, SHORT track,
|
||||||
|
FIXP_COD code[]) {
|
||||||
|
SHORT i, k;
|
||||||
|
for (k = 0; k < nb_pulse; k++) {
|
||||||
|
/* i = ((pos[k] & (16-1))*NB_TRACK) + track; */
|
||||||
|
i = ((pos[k] & (16 - 1)) << 2) + track;
|
||||||
|
if ((pos[k] & 16) == 0) {
|
||||||
|
code[i] = code[i] + (FIXP_COD)(512 << (COD_BITS - FRACT_BITS));
|
||||||
|
} else {
|
||||||
|
code[i] = code[i] - (FIXP_COD)(512 << (COD_BITS - FRACT_BITS));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* D_ACELP_decode_1p_N1
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* index I: pulse index
|
||||||
|
* N I: number of bits for position
|
||||||
|
* offset I: offset
|
||||||
|
* pos O: position of the pulse
|
||||||
|
*
|
||||||
|
* Function:
|
||||||
|
* Decode 1 pulse with N+1 bits
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* void
|
||||||
|
*/
|
||||||
|
static void D_ACELP_decode_1p_N1(LONG index, SHORT N, SHORT offset,
|
||||||
|
SHORT pos[]) {
|
||||||
|
SHORT pos1;
|
||||||
|
LONG i, mask;
|
||||||
|
|
||||||
|
mask = ((1 << N) - 1);
|
||||||
|
/*
|
||||||
|
* Decode 1 pulse with N+1 bits
|
||||||
|
*/
|
||||||
|
pos1 = (SHORT)((index & mask) + offset);
|
||||||
|
i = ((index >> N) & 1);
|
||||||
|
if (i == 1) {
|
||||||
|
pos1 += 16;
|
||||||
|
}
|
||||||
|
pos[0] = pos1;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* D_ACELP_decode_2p_2N1
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* index I: pulse index
|
||||||
|
* N I: number of bits for position
|
||||||
|
* offset I: offset
|
||||||
|
* pos O: position of the pulse
|
||||||
|
*
|
||||||
|
* Function:
|
||||||
|
* Decode 2 pulses with 2*N+1 bits
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* void
|
||||||
|
*/
|
||||||
|
static void D_ACELP_decode_2p_2N1(LONG index, SHORT N, SHORT offset,
|
||||||
|
SHORT pos[]) {
|
||||||
|
SHORT pos1, pos2;
|
||||||
|
LONG mask, i;
|
||||||
|
mask = ((1 << N) - 1);
|
||||||
|
/*
|
||||||
|
* Decode 2 pulses with 2*N+1 bits
|
||||||
|
*/
|
||||||
|
pos1 = (SHORT)(((index >> N) & mask) + offset);
|
||||||
|
i = (index >> (2 * N)) & 1;
|
||||||
|
pos2 = (SHORT)((index & mask) + offset);
|
||||||
|
if ((pos2 - pos1) < 0) {
|
||||||
|
if (i == 1) {
|
||||||
|
pos1 += 16;
|
||||||
|
} else {
|
||||||
|
pos2 += 16;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (i == 1) {
|
||||||
|
pos1 += 16;
|
||||||
|
pos2 += 16;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
pos[0] = pos1;
|
||||||
|
pos[1] = pos2;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* D_ACELP_decode_3p_3N1
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* index I: pulse index
|
||||||
|
* N I: number of bits for position
|
||||||
|
* offset I: offset
|
||||||
|
* pos O: position of the pulse
|
||||||
|
*
|
||||||
|
* Function:
|
||||||
|
* Decode 3 pulses with 3*N+1 bits
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* void
|
||||||
|
*/
|
||||||
|
static void D_ACELP_decode_3p_3N1(LONG index, SHORT N, SHORT offset,
|
||||||
|
SHORT pos[]) {
|
||||||
|
SHORT j;
|
||||||
|
LONG mask, idx;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Decode 3 pulses with 3*N+1 bits
|
||||||
|
*/
|
||||||
|
mask = ((1 << ((2 * N) - 1)) - 1);
|
||||||
|
idx = index & mask;
|
||||||
|
j = offset;
|
||||||
|
if (((index >> ((2 * N) - 1)) & 1) == 1) {
|
||||||
|
j += (1 << (N - 1));
|
||||||
|
}
|
||||||
|
D_ACELP_decode_2p_2N1(idx, N - 1, j, pos);
|
||||||
|
mask = ((1 << (N + 1)) - 1);
|
||||||
|
idx = (index >> (2 * N)) & mask;
|
||||||
|
D_ACELP_decode_1p_N1(idx, N, offset, pos + 2);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* D_ACELP_decode_4p_4N1
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* index I: pulse index
|
||||||
|
* N I: number of bits for position
|
||||||
|
* offset I: offset
|
||||||
|
* pos O: position of the pulse
|
||||||
|
*
|
||||||
|
* Function:
|
||||||
|
* Decode 4 pulses with 4*N+1 bits
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* void
|
||||||
|
*/
|
||||||
|
static void D_ACELP_decode_4p_4N1(LONG index, SHORT N, SHORT offset,
|
||||||
|
SHORT pos[]) {
|
||||||
|
SHORT j;
|
||||||
|
LONG mask, idx;
|
||||||
|
/*
|
||||||
|
* Decode 4 pulses with 4*N+1 bits
|
||||||
|
*/
|
||||||
|
mask = ((1 << ((2 * N) - 1)) - 1);
|
||||||
|
idx = index & mask;
|
||||||
|
j = offset;
|
||||||
|
if (((index >> ((2 * N) - 1)) & 1) == 1) {
|
||||||
|
j += (1 << (N - 1));
|
||||||
|
}
|
||||||
|
D_ACELP_decode_2p_2N1(idx, N - 1, j, pos);
|
||||||
|
mask = ((1 << ((2 * N) + 1)) - 1);
|
||||||
|
idx = (index >> (2 * N)) & mask;
|
||||||
|
D_ACELP_decode_2p_2N1(idx, N, offset, pos + 2);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/*
|
||||||
|
* D_ACELP_decode_4p_4N
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* index I: pulse index
|
||||||
|
* N I: number of bits for position
|
||||||
|
* offset I: offset
|
||||||
|
* pos O: position of the pulse
|
||||||
|
*
|
||||||
|
* Function:
|
||||||
|
* Decode 4 pulses with 4*N bits
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* void
|
||||||
|
*/
|
||||||
|
static void D_ACELP_decode_4p_4N(LONG index, SHORT N, SHORT offset,
|
||||||
|
SHORT pos[]) {
|
||||||
|
SHORT j, n_1;
|
||||||
|
/*
|
||||||
|
* Decode 4 pulses with 4*N bits
|
||||||
|
*/
|
||||||
|
n_1 = N - 1;
|
||||||
|
j = offset + (1 << n_1);
|
||||||
|
switch ((index >> ((4 * N) - 2)) & 3) {
|
||||||
|
case 0:
|
||||||
|
if (((index >> ((4 * n_1) + 1)) & 1) == 0) {
|
||||||
|
D_ACELP_decode_4p_4N1(index, n_1, offset, pos);
|
||||||
|
} else {
|
||||||
|
D_ACELP_decode_4p_4N1(index, n_1, j, pos);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
D_ACELP_decode_1p_N1((index >> ((3 * n_1) + 1)), n_1, offset, pos);
|
||||||
|
D_ACELP_decode_3p_3N1(index, n_1, j, pos + 1);
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
D_ACELP_decode_2p_2N1((index >> ((2 * n_1) + 1)), n_1, offset, pos);
|
||||||
|
D_ACELP_decode_2p_2N1(index, n_1, j, pos + 2);
|
||||||
|
break;
|
||||||
|
case 3:
|
||||||
|
D_ACELP_decode_3p_3N1((index >> (n_1 + 1)), n_1, offset, pos);
|
||||||
|
D_ACELP_decode_1p_N1(index, n_1, j, pos + 3);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* D_ACELP_decode_4t
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* index I: index
|
||||||
|
* mode I: speech mode
|
||||||
|
* code I: (Q9) algebraic (fixed) codebook excitation
|
||||||
|
*
|
||||||
|
* Function:
|
||||||
|
* 20, 36, 44, 52, 64, 72, 88 bits algebraic codebook.
|
||||||
|
* 4 tracks x 16 positions per track = 64 samples.
|
||||||
|
*
|
||||||
|
* 20 bits 5+5+5+5 --> 4 pulses in a frame of 64 samples.
|
||||||
|
* 36 bits 9+9+9+9 --> 8 pulses in a frame of 64 samples.
|
||||||
|
* 44 bits 13+9+13+9 --> 10 pulses in a frame of 64 samples.
|
||||||
|
* 52 bits 13+13+13+13 --> 12 pulses in a frame of 64 samples.
|
||||||
|
* 64 bits 2+2+2+2+14+14+14+14 --> 16 pulses in a frame of 64 samples.
|
||||||
|
* 72 bits 10+2+10+2+10+14+10+14 --> 18 pulses in a frame of 64 samples.
|
||||||
|
* 88 bits 11+11+11+11+11+11+11+11 --> 24 pulses in a frame of 64 samples.
|
||||||
|
*
|
||||||
|
* All pulses can have two (2) possible amplitudes: +1 or -1.
|
||||||
|
* Each pulse can sixteen (16) possible positions.
|
||||||
|
*
|
||||||
|
* codevector length 64
|
||||||
|
* number of track 4
|
||||||
|
* number of position 16
|
||||||
|
*
|
||||||
|
* Returns:
|
||||||
|
* void
|
||||||
|
*/
|
||||||
|
void D_ACELP_decode_4t64(SHORT index[], int nbits, FIXP_COD code[]) {
|
||||||
|
LONG L_index;
|
||||||
|
SHORT k, pos[6];
|
||||||
|
|
||||||
|
FDKmemclear(code, L_SUBFR * sizeof(FIXP_COD));
|
||||||
|
|
||||||
|
/* decode the positions and signs of pulses and build the codeword */
|
||||||
|
switch (nbits) {
|
||||||
|
case 12:
|
||||||
|
for (k = 0; k < 4; k += 2) {
|
||||||
|
L_index = index[2 * (k / 2) + 1];
|
||||||
|
D_ACELP_decode_1p_N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 1, 2 * (index[2 * (k / 2)]) + k / 2, code);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 16: {
|
||||||
|
int i = 0;
|
||||||
|
int offset = index[i++];
|
||||||
|
offset = (offset == 0) ? 1 : 3;
|
||||||
|
for (k = 0; k < 4; k++) {
|
||||||
|
if (k != offset) {
|
||||||
|
L_index = index[i++];
|
||||||
|
D_ACELP_decode_1p_N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 1, k, code);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
case 20:
|
||||||
|
for (k = 0; k < 4; k++) {
|
||||||
|
L_index = (LONG)index[k];
|
||||||
|
D_ACELP_decode_1p_N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 1, k, code);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 28:
|
||||||
|
for (k = 0; k < 4 - 2; k++) {
|
||||||
|
L_index = (LONG)index[k];
|
||||||
|
D_ACELP_decode_2p_2N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 2, k, code);
|
||||||
|
}
|
||||||
|
for (k = 2; k < 4; k++) {
|
||||||
|
L_index = (LONG)index[k];
|
||||||
|
D_ACELP_decode_1p_N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 1, k, code);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 36:
|
||||||
|
for (k = 0; k < 4; k++) {
|
||||||
|
L_index = (LONG)index[k];
|
||||||
|
D_ACELP_decode_2p_2N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 2, k, code);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 44:
|
||||||
|
for (k = 0; k < 4 - 2; k++) {
|
||||||
|
L_index = (LONG)index[k];
|
||||||
|
D_ACELP_decode_3p_3N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 3, k, code);
|
||||||
|
}
|
||||||
|
for (k = 2; k < 4; k++) {
|
||||||
|
L_index = (LONG)index[k];
|
||||||
|
D_ACELP_decode_2p_2N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 2, k, code);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 52:
|
||||||
|
for (k = 0; k < 4; k++) {
|
||||||
|
L_index = (LONG)index[k];
|
||||||
|
D_ACELP_decode_3p_3N1(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 3, k, code);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 64:
|
||||||
|
for (k = 0; k < 4; k++) {
|
||||||
|
L_index = (((LONG)index[k] << 14) + (LONG)index[k + 4]);
|
||||||
|
D_ACELP_decode_4p_4N(L_index, 4, 0, pos);
|
||||||
|
D_ACELP_add_pulse(pos, 4, k, code);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
FDK_ASSERT(0);
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
}
|
||||||
117
libAACdec/src/usacdec_ace_d4t64.h
Normal file
117
libAACdec/src/usacdec_ace_d4t64.h
Normal file
@ -0,0 +1,117 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s):
|
||||||
|
|
||||||
|
Description: ACELP
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_ACE_D4T64_H
|
||||||
|
#define USACDEC_ACE_D4T64_H
|
||||||
|
|
||||||
|
#include "common_fix.h"
|
||||||
|
|
||||||
|
/* Data type definition for the fixed codebook vector */
|
||||||
|
#define FIXP_COD FIXP_SGL
|
||||||
|
#define FX_COD2FX_DBL(x) (FX_SGL2FX_DBL(x))
|
||||||
|
#define FX_DBL2FX_COD(x) FX_DBL2FX_SGL((x) + (FIXP_DBL)0x8000)
|
||||||
|
#define FX_SGL2FX_COD(x) (x)
|
||||||
|
#define COD_BITS FRACT_BITS
|
||||||
|
|
||||||
|
void D_ACELP_decode_4t64(SHORT index[], int nbits, FIXP_COD code[]);
|
||||||
|
|
||||||
|
#endif /* USACDEC_ACE_D4T64_H */
|
||||||
229
libAACdec/src/usacdec_ace_ltp.cpp
Normal file
229
libAACdec/src/usacdec_ace_ltp.cpp
Normal file
@ -0,0 +1,229 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Matthias Hildenbrand
|
||||||
|
|
||||||
|
Description: USAC ACELP LTP filter
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#include "usacdec_ace_ltp.h"
|
||||||
|
|
||||||
|
#include "genericStds.h"
|
||||||
|
#include "common_fix.h"
|
||||||
|
|
||||||
|
#define UP_SAMP 4
|
||||||
|
#define L_INTERPOL2 16
|
||||||
|
#define L_SUBFR 64
|
||||||
|
|
||||||
|
#define A2 FL2FX_SGL(2 * 0.18f)
|
||||||
|
#define B FL2FX_SGL(0.64f)
|
||||||
|
|
||||||
|
static const LONG Pred_lt4_inter4_2[UP_SAMP][L_INTERPOL2] = {
|
||||||
|
{(LONG)0x0000FFFC, (LONG)0x0008FFFC, (LONG)0xFFEB004C, (LONG)0xFF50014A,
|
||||||
|
(LONG)0xFDD90351, (LONG)0xFB2A06CD, (LONG)0xF6920D46, (LONG)0xEBB42B35,
|
||||||
|
(LONG)0x6D9EEF39, (LONG)0x0618FE0F, (LONG)0xFFE00131, (LONG)0xFE5501C5,
|
||||||
|
(LONG)0xFE5E015D, (LONG)0xFEF700B6, (LONG)0xFF920037, (LONG)0xFFEC0003},
|
||||||
|
{(LONG)0x0002FFF2, (LONG)0x0026FFBD, (LONG)0x005DFF98, (LONG)0x0055FFEF,
|
||||||
|
(LONG)0xFF89015F, (LONG)0xFD3A04E5, (LONG)0xF7D90DAA, (LONG)0xE67A50EE,
|
||||||
|
(LONG)0x50EEE67A, (LONG)0x0DAAF7D9, (LONG)0x04E5FD3A, (LONG)0x015FFF89,
|
||||||
|
(LONG)0xFFEF0055, (LONG)0xFF98005D, (LONG)0xFFBD0026, (LONG)0xFFF20002},
|
||||||
|
{(LONG)0x0003FFEC, (LONG)0x0037FF92, (LONG)0x00B6FEF7, (LONG)0x015DFE5E,
|
||||||
|
(LONG)0x01C5FE55, (LONG)0x0131FFE0, (LONG)0xFE0F0618, (LONG)0xEF396D9E,
|
||||||
|
(LONG)0x2B35EBB4, (LONG)0x0D46F692, (LONG)0x06CDFB2A, (LONG)0x0351FDD9,
|
||||||
|
(LONG)0x014AFF50, (LONG)0x004CFFEB, (LONG)0xFFFC0008, (LONG)0xFFFC0000},
|
||||||
|
{(LONG)0x0002FFF2, (LONG)0x002BFF9E, (LONG)0x00B9FECE, (LONG)0x01CFFD75,
|
||||||
|
(LONG)0x035EFBC1, (LONG)0x0521FA0C, (LONG)0x06AAF8C9, (LONG)0x07907852,
|
||||||
|
(LONG)0x0790F8C9, (LONG)0x06AAFA0C, (LONG)0x0521FBC1, (LONG)0x035EFD75,
|
||||||
|
(LONG)0x01CFFECE, (LONG)0x00B9FF9E, (LONG)0x002BFFF2, (LONG)0x00020000}};
|
||||||
|
|
||||||
|
void Pred_lt4(FIXP_DBL exc[], /* in/out: excitation buffer */
|
||||||
|
int T0, /* input : integer pitch lag */
|
||||||
|
int frac /* input : fraction of lag in range 0..3 */
|
||||||
|
) {
|
||||||
|
int j;
|
||||||
|
FIXP_DBL *x;
|
||||||
|
const LONG *interpol;
|
||||||
|
FIXP_DBL L_sumb, L_sumt;
|
||||||
|
|
||||||
|
x = &exc[-T0 - L_INTERPOL2 + 1];
|
||||||
|
|
||||||
|
/* remap frac and x:
|
||||||
|
0 -> 3 x (unchanged)
|
||||||
|
1 -> 0 x--
|
||||||
|
2 -> 1 x--
|
||||||
|
3 -> 2 x--
|
||||||
|
*/
|
||||||
|
|
||||||
|
if (--frac < 0)
|
||||||
|
frac += UP_SAMP;
|
||||||
|
else
|
||||||
|
x--;
|
||||||
|
|
||||||
|
j = L_SUBFR + 1;
|
||||||
|
do {
|
||||||
|
LONG filt;
|
||||||
|
FIXP_DBL x0, x1;
|
||||||
|
FIXP_DBL *xi = x++;
|
||||||
|
interpol = Pred_lt4_inter4_2[frac];
|
||||||
|
int i = 3;
|
||||||
|
|
||||||
|
filt = *interpol++;
|
||||||
|
x0 = *xi++;
|
||||||
|
x1 = *xi++;
|
||||||
|
L_sumt = fMultDiv2(x0, (FIXP_SGL)((SHORT)(filt >> 16)));
|
||||||
|
L_sumb = fMultDiv2(x1, (FIXP_SGL)((SHORT)filt));
|
||||||
|
do {
|
||||||
|
filt = *interpol++;
|
||||||
|
x0 = *xi++;
|
||||||
|
x1 = *xi++;
|
||||||
|
L_sumt = fMultAddDiv2(L_sumt, x0, (FIXP_SGL)((SHORT)(filt >> 16)));
|
||||||
|
L_sumb = fMultAddDiv2(L_sumb, x1, (FIXP_SGL)((SHORT)filt));
|
||||||
|
|
||||||
|
filt = *interpol++;
|
||||||
|
x0 = *xi++;
|
||||||
|
x1 = *xi++;
|
||||||
|
L_sumt = fMultAddDiv2(L_sumt, x0, (FIXP_SGL)((SHORT)(filt >> 16)));
|
||||||
|
L_sumb = fMultAddDiv2(L_sumb, x1, (FIXP_SGL)((SHORT)filt));
|
||||||
|
|
||||||
|
filt = *interpol++;
|
||||||
|
x0 = *xi++;
|
||||||
|
x1 = *xi++;
|
||||||
|
L_sumt = fMultAddDiv2(L_sumt, x0, (FIXP_SGL)((SHORT)(filt >> 16)));
|
||||||
|
L_sumb = fMultAddDiv2(L_sumb, x1, (FIXP_SGL)((SHORT)filt));
|
||||||
|
|
||||||
|
filt = *interpol++;
|
||||||
|
x0 = *xi++;
|
||||||
|
x1 = *xi++;
|
||||||
|
L_sumt = fMultAddDiv2(L_sumt, x0, (FIXP_SGL)((SHORT)(filt >> 16)));
|
||||||
|
L_sumb = fMultAddDiv2(L_sumb, x1, (FIXP_SGL)((SHORT)filt));
|
||||||
|
|
||||||
|
filt = *interpol++;
|
||||||
|
x0 = *xi++;
|
||||||
|
x1 = *xi++;
|
||||||
|
L_sumt = fMultAddDiv2(L_sumt, x0, (FIXP_SGL)((SHORT)(filt >> 16)));
|
||||||
|
L_sumb = fMultAddDiv2(L_sumb, x1, (FIXP_SGL)((SHORT)filt));
|
||||||
|
} while (--i != 0);
|
||||||
|
|
||||||
|
L_sumb <<= 1;
|
||||||
|
L_sumb = fAddSaturate(L_sumt << 1, L_sumb);
|
||||||
|
*exc++ = L_sumb;
|
||||||
|
} while (--j != 0);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
void Pred_lt4_postfilter(FIXP_DBL exc[] /* in/out: excitation buffer */
|
||||||
|
) {
|
||||||
|
/*
|
||||||
|
exc[i] = A*exc[i-1] + B*exc[i] + A*exc[i+1]
|
||||||
|
exc[i+1] = A*exc[i] + B*exc[i+1] + A*exc[i+2] ; i = 0:2:62
|
||||||
|
*/
|
||||||
|
int i;
|
||||||
|
FIXP_DBL sum0, sum1, a_exc0, a_exc1;
|
||||||
|
a_exc0 = fMultDiv2(A2, exc[-1]);
|
||||||
|
a_exc1 = fMultDiv2(A2, exc[0]);
|
||||||
|
|
||||||
|
/* ARM926: 22 cycles/iteration */
|
||||||
|
for (i = 0; i < L_SUBFR; i += 2) {
|
||||||
|
sum0 = a_exc0 + fMult(B, exc[i]);
|
||||||
|
sum1 = a_exc1 + fMult(B, exc[i + 1]);
|
||||||
|
a_exc0 = fMultDiv2(A2, exc[i + 1]);
|
||||||
|
a_exc1 = fMultDiv2(A2, exc[i + 2]);
|
||||||
|
exc[i] = sum0 + a_exc0;
|
||||||
|
exc[i + 1] = sum1 + a_exc1;
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
}
|
||||||
128
libAACdec/src/usacdec_ace_ltp.h
Normal file
128
libAACdec/src/usacdec_ace_ltp.h
Normal file
@ -0,0 +1,128 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Matthias Hildenbrand
|
||||||
|
|
||||||
|
Description: USAC ACELP LTP filter
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_ACE_LTP_H
|
||||||
|
#define USACDEC_ACE_LTP_H
|
||||||
|
|
||||||
|
#include "common_fix.h"
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Compute the initial adaptive codebook excitation v'(n) by
|
||||||
|
* interpolating the past excitation vector u'(n).
|
||||||
|
* \param exc points to adaptive codebook of current subframe (input/output)
|
||||||
|
* \param T0 integer part of decoded pitch lag (input)
|
||||||
|
* \param frac fractional part of decoded pitch lag (0..3) (input)
|
||||||
|
*/
|
||||||
|
void Pred_lt4(FIXP_DBL exc[], /* in/out: excitation buffer */
|
||||||
|
int T0, /* input : integer pitch lag */
|
||||||
|
int frac /* input : fraction of lag */
|
||||||
|
);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Compute the adaptive codebook excitation v(n) in case of
|
||||||
|
* ltp_filtering_flag == 0.
|
||||||
|
* \param exc points to adaptive codebook of current subframe (input/output)
|
||||||
|
*/
|
||||||
|
void Pred_lt4_postfilter(FIXP_DBL exc[] /* in/out: excitation buffer */
|
||||||
|
);
|
||||||
|
|
||||||
|
#endif /* USACDEC_ACE_LTP_H */
|
||||||
1289
libAACdec/src/usacdec_acelp.cpp
Normal file
1289
libAACdec/src/usacdec_acelp.cpp
Normal file
File diff suppressed because it is too large
Load Diff
280
libAACdec/src/usacdec_acelp.h
Normal file
280
libAACdec/src/usacdec_acelp.h
Normal file
@ -0,0 +1,280 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Matthias Hildenbrand
|
||||||
|
|
||||||
|
Description: USAC ACELP frame decoder
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_ACELP_H
|
||||||
|
#define USACDEC_ACELP_H
|
||||||
|
|
||||||
|
#include "common_fix.h"
|
||||||
|
#include "FDK_bitstream.h"
|
||||||
|
#include "usacdec_const.h"
|
||||||
|
#include "usacdec_rom.h"
|
||||||
|
|
||||||
|
//#define ENHANCED_TCX_TD_CONCEAL_ENABLE
|
||||||
|
|
||||||
|
/** Structure which holds the ACELP internal persistent memory */
|
||||||
|
typedef struct {
|
||||||
|
FIXP_DBL old_exc_mem[PIT_MAX_MAX + L_INTERPOL];
|
||||||
|
FIXP_DBL old_syn_mem[M_LP_FILTER_ORDER]; /* synthesis filter states */
|
||||||
|
FIXP_SGL A[M_LP_FILTER_ORDER];
|
||||||
|
INT A_exp;
|
||||||
|
FIXP_DBL gc_threshold;
|
||||||
|
FIXP_DBL de_emph_mem;
|
||||||
|
FIXP_SGL past_gpit;
|
||||||
|
FIXP_DBL past_gcode;
|
||||||
|
USHORT old_T0;
|
||||||
|
UCHAR old_T0_frac;
|
||||||
|
FIXP_DBL deemph_mem_wsyn;
|
||||||
|
FIXP_DBL wsyn_rms;
|
||||||
|
SHORT seed_ace;
|
||||||
|
} CAcelpStaticMem;
|
||||||
|
|
||||||
|
/** Structure which holds the parameter data needed to decode one ACELP frame.
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
UCHAR
|
||||||
|
acelp_core_mode; /**< mean excitation energy index for whole ACELP frame
|
||||||
|
*/
|
||||||
|
UCHAR mean_energy; /**< acelp core mode for whole ACELP frame */
|
||||||
|
USHORT T0[NB_SUBFR];
|
||||||
|
UCHAR T0_frac[NB_SUBFR];
|
||||||
|
UCHAR ltp_filtering_flag[NB_SUBFR]; /**< controlls whether LTP postfilter is
|
||||||
|
active for each ACELP subframe */
|
||||||
|
SHORT icb_index[NB_SUBFR]
|
||||||
|
[8]; /**< innovative codebook index for each ACELP subframe */
|
||||||
|
UCHAR gains[NB_SUBFR]; /**< gain index for each ACELP subframe */
|
||||||
|
} CAcelpChannelData;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Read the acelp_coding() bitstream part.
|
||||||
|
* \param[in] hBs bitstream handle to read data from.
|
||||||
|
* \param[out] acelpData pointer to structure to store the parsed data of one
|
||||||
|
* ACELP frame.
|
||||||
|
* \param[in] acelp_core_mode the ACELP core mode index.
|
||||||
|
* \param[in] coreCoderFrameLength length of core coder frame (1024|768)
|
||||||
|
*/
|
||||||
|
INT CLpd_AcelpRead(HANDLE_FDK_BITSTREAM hBs, CAcelpChannelData *acelpData,
|
||||||
|
INT acelp_core_mode, INT i_offset, INT coreCoderFrameLength);
|
||||||
|
/**
|
||||||
|
* \brief Initialization of memory before one LPD frame is decoded
|
||||||
|
* \param[out] synth_buf synthesis buffer to be initialized, exponent = SF_SYNTH
|
||||||
|
* \param[in] old_synth past synthesis of previous LPD frame, exponent =
|
||||||
|
* SF_SYNTH
|
||||||
|
* \param[out] synth_buf_fb fullband synthesis buffer to be initialized,
|
||||||
|
* exponent = SF_SYNTH
|
||||||
|
* \param[in] old_synth_fb past fullband synthesis of previous LPD frame,
|
||||||
|
* exponent = SF_SYNTH
|
||||||
|
* \param[out] pitch vector where decoded pitch lag values are stored
|
||||||
|
* \param[in] old_T_pf past pitch lag values of previous LPD frame
|
||||||
|
* \param[in] samplingRate sampling rate for pitch lag offset calculation
|
||||||
|
* \param[out] i_offset pitch lag offset for the decoding of the pitch lag
|
||||||
|
* \param[in] coreCoderFrameLength length of core coder frame (1024|768)
|
||||||
|
*/
|
||||||
|
void Acelp_PreProcessing(FIXP_DBL *synth_buf, FIXP_DBL *old_synth, INT *pitch,
|
||||||
|
INT *old_T_pf, FIXP_DBL *pit_gain,
|
||||||
|
FIXP_DBL *old_gain_pf, INT samplingRate, INT *i_offset,
|
||||||
|
INT coreCoderFrameLength, INT synSfd,
|
||||||
|
INT nbSubfrSuperfr);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Save tail of buffers for the initialization of the next LPD frame
|
||||||
|
* \param[in] synth_buf synthesis of current LPD frame, exponent = SF_SYNTH
|
||||||
|
* \param[out] old_synth memory where tail of fullband synth_buf is stored,
|
||||||
|
* exponent = SF_SYNTH
|
||||||
|
* \param[in] synth_buf_fb fullband synthesis of current LPD frame, exponent =
|
||||||
|
* SF_SYNTH
|
||||||
|
* \param[out] old_synth_fb memory where tail of fullband synth_buf is stored,
|
||||||
|
* exponent = SF_SYNTH
|
||||||
|
* \param[in] pitch decoded pitch lag values of current LPD frame
|
||||||
|
* \param[out] old_T_pf memory where last SYN_SFD pitch lag values are stored
|
||||||
|
*/
|
||||||
|
void Acelp_PostProcessing(FIXP_DBL *synth_buf, FIXP_DBL *old_synth, INT *pitch,
|
||||||
|
INT *old_T_pf, INT coreCoderFrameLength, INT synSfd,
|
||||||
|
INT nbSubfrSuperfr);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Decode one ACELP frame (three or four ACELP subframes with 64 samples
|
||||||
|
* each)
|
||||||
|
* \param[in,out] acelp_mem pointer to ACELP memory structure
|
||||||
|
* \param[in] i_offset pitch lag offset
|
||||||
|
* \param[in] lsp_old LPC filter in LSP domain corresponding to previous frame
|
||||||
|
* \param[in] lsp_new LPC filter in LSP domain corresponding to current frame
|
||||||
|
* \param[in] stab_fac stability factor constrained by 0<=stab_fac<=1.0,
|
||||||
|
* exponent = SF_STAB
|
||||||
|
* \param[in] acelpData pointer to struct with data which is needed for decoding
|
||||||
|
* one ACELP frame
|
||||||
|
* \param[out] synth ACELP output signal
|
||||||
|
* \param[out] pT four decoded pitch lag values
|
||||||
|
* \param[in] coreCoderFrameLength length of core coder frame (1024|768)
|
||||||
|
*/
|
||||||
|
void CLpd_AcelpDecode(CAcelpStaticMem *acelp_mem, INT i_offset,
|
||||||
|
const FIXP_LPC lsp_old[M_LP_FILTER_ORDER],
|
||||||
|
const FIXP_LPC lsp_new[M_LP_FILTER_ORDER],
|
||||||
|
FIXP_SGL stab_fac, CAcelpChannelData *acelpData,
|
||||||
|
INT numLostSubframes, int lastLpcLost, int frameCnt,
|
||||||
|
FIXP_DBL synth[], int pT[], FIXP_DBL *pit_gain,
|
||||||
|
INT coreCoderFrameLength);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Reset ACELP internal memory.
|
||||||
|
* \param[out] acelp_mem pointer to ACELP memory structure
|
||||||
|
*/
|
||||||
|
void CLpd_AcelpReset(CAcelpStaticMem *acelp_mem);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Initialize ACELP internal memory in case of FAC before ACELP decoder
|
||||||
|
* is called
|
||||||
|
* \param[in] synth points to end+1 of past valid synthesis signal, exponent =
|
||||||
|
* SF_SYNTH
|
||||||
|
* \param[in] last_lpd_mode last lpd mode
|
||||||
|
* \param[in] last_last_lpd_mode lpd mode before last_lpd_mode
|
||||||
|
* \param[in] A_new LP synthesis filter coeffs corresponding to last frame,
|
||||||
|
* exponent = SF_A_COEFFS
|
||||||
|
* \param[in] A_old LP synthesis filter coeffs corresponding to the frame before
|
||||||
|
* last frame, exponent = SF_A_COEFFS
|
||||||
|
* \param[in,out] acelp_mem pointer to ACELP memory structure
|
||||||
|
* \param[in] coreCoderFrameLength length of core coder frame (1024|768)
|
||||||
|
*/
|
||||||
|
void CLpd_AcelpPrepareInternalMem(const FIXP_DBL *synth, UCHAR last_lpd_mode,
|
||||||
|
UCHAR last_last_lpd_mode,
|
||||||
|
const FIXP_LPC *A_new, const INT A_new_exp,
|
||||||
|
const FIXP_LPC *A_old, const INT A_old_exp,
|
||||||
|
CAcelpStaticMem *acelp_mem,
|
||||||
|
INT coreCoderFrameLength, UCHAR lpd_mode);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Calculate zero input response (zir) of the acelp synthesis filter
|
||||||
|
* \param[in] A LP synthesis filter coefficients, exponent = SF_A_COEFFS
|
||||||
|
* \param[in,out] acelp_mem pointer to ACELP memory structure
|
||||||
|
* \param[in] length length of zir
|
||||||
|
* \param[out] zir pointer to zir output buffer, exponent = SF_SYNTH
|
||||||
|
*/
|
||||||
|
void CLpd_Acelp_Zir(const FIXP_LPC A[], const INT A_exp,
|
||||||
|
CAcelpStaticMem *acelp_mem, const INT length,
|
||||||
|
FIXP_DBL zir[], int doDeemph);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Borrow static excitation memory from ACELP decoder
|
||||||
|
* \param[in] acelp_mem pointer to ACELP memory structure
|
||||||
|
* \param[in] length number of requested FIXP_DBL values
|
||||||
|
* \return pointer to requested memory
|
||||||
|
*
|
||||||
|
* The caller has to take care not to overwrite valid memory areas.
|
||||||
|
* During TCX/FAC calculations and before CLpd_AcelpPrepareInternalMem() is
|
||||||
|
* called, the following memory size is available:
|
||||||
|
* - 256 samples in case of ACELP -> TCX20 -> ACELP transition
|
||||||
|
* - PIT_MAX_MAX+L_INTERPOL samples in all other cases
|
||||||
|
*/
|
||||||
|
FIXP_DBL *CLpd_ACELP_GetFreeExcMem(CAcelpStaticMem *acelp_mem, INT length);
|
||||||
|
|
||||||
|
void CLpd_TcxTDConceal(CAcelpStaticMem *acelp_mem, SHORT *pitch,
|
||||||
|
const FIXP_LPC lsp_old[M_LP_FILTER_ORDER],
|
||||||
|
const FIXP_LPC lsp_new[M_LP_FILTER_ORDER],
|
||||||
|
const FIXP_SGL stab_fac, INT numLostSubframes,
|
||||||
|
FIXP_DBL synth[], INT coreCoderFrameLength,
|
||||||
|
UCHAR last_tcx_noise_factor);
|
||||||
|
|
||||||
|
inline SHORT E_UTIL_random(SHORT *seed) {
|
||||||
|
*seed = (SHORT)((((LONG)*seed * (LONG)31821) >> 1) + (LONG)13849);
|
||||||
|
return (*seed);
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif /* USACDEC_ACELP_H */
|
||||||
202
libAACdec/src/usacdec_const.h
Normal file
202
libAACdec/src/usacdec_const.h
Normal file
@ -0,0 +1,202 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Manuel Jander
|
||||||
|
|
||||||
|
Description: USAC related constants
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_CONST_H
|
||||||
|
#define USACDEC_CONST_H
|
||||||
|
|
||||||
|
/* scale factors */
|
||||||
|
#define SF_CODE 6 /* exponent of code[], fixed codebook vector */
|
||||||
|
#define SF_GAIN_C 16 /* exponent of gain code and smoothed gain code */
|
||||||
|
#define SF_EXC 16 /* exponent of exc[] and exc2[], excitation buffer */
|
||||||
|
#define SF_GAIN_P 1 /* exponent of gain_pit */
|
||||||
|
#define SF_PFAC 0 /* exponent of period/voicing factor */
|
||||||
|
#define SF_SYNTH SF_EXC /* exponent of synthesis buffer */
|
||||||
|
#define SF_A_COEFFS 3 /* exponent of LP domain synthesis filter coefficient */
|
||||||
|
#define SF_STAB 1 /* exponent of stability factor */
|
||||||
|
|
||||||
|
/* definitions which are independent of coreCoderFrameLength */
|
||||||
|
#define M_LP_FILTER_ORDER 16 /* LP filter order */
|
||||||
|
|
||||||
|
#define PIT_MIN_12k8 34 /* Minimum pitch lag with resolution 1/4 */
|
||||||
|
#define PIT_MAX_12k8 231 /* Maximum pitch lag for fs=12.8kHz */
|
||||||
|
#define FSCALE_DENOM 12800 /* Frequency scale denominator */
|
||||||
|
#define FAC_FSCALE_MIN \
|
||||||
|
6000 /* Minimum allowed frequency scale for acelp decoder */
|
||||||
|
|
||||||
|
#if !defined(LPD_MAX_CORE_SR)
|
||||||
|
#define LPD_MAX_CORE_SR 24000 /* Default value from ref soft */
|
||||||
|
#endif
|
||||||
|
#define FAC_FSCALE_MAX \
|
||||||
|
LPD_MAX_CORE_SR /* Maximum allowed frequency scale for acelp decoder */
|
||||||
|
|
||||||
|
/* Maximum pitch lag (= 411 for fs_max = 24000) */
|
||||||
|
#define PIT_MAX_TMP \
|
||||||
|
(PIT_MAX_12k8 + \
|
||||||
|
(6 * \
|
||||||
|
((((FAC_FSCALE_MAX * PIT_MIN_12k8) + (FSCALE_DENOM / 2)) / FSCALE_DENOM) - \
|
||||||
|
PIT_MIN_12k8)))
|
||||||
|
#if (PIT_MAX_TMP < \
|
||||||
|
256) /* cannot be smaller because of tcx time domain concealment */
|
||||||
|
#define PIT_MAX_MAX 256
|
||||||
|
#else
|
||||||
|
#define PIT_MAX_MAX PIT_MAX_TMP
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define NB_DIV 4 /* number of division (20ms) per 80ms frame */
|
||||||
|
#define L_SUBFR 64 /* subframe size (5ms) */
|
||||||
|
#define BPF_SFD 1 /* bass postfilter delay (subframe) */
|
||||||
|
#define BPF_DELAY (BPF_SFD * L_SUBFR) /* bass postfilter delay (samples) */
|
||||||
|
|
||||||
|
#define L_FILT 12 /* Delay of up-sampling filter (bass post-filter) */
|
||||||
|
#define L_EXTRA 96 /* for bass post-filter */
|
||||||
|
#define L_INTERPOL \
|
||||||
|
(16 + 1) /* Length of filter for interpolation (acelp decoder) */
|
||||||
|
|
||||||
|
/* definitions for coreCoderFrameLength = 1024 */
|
||||||
|
#define L_FRAME_PLUS_1024 1024 /* length of one 80ms superframe */
|
||||||
|
#define L_DIV_1024 \
|
||||||
|
(L_FRAME_PLUS_1024 / NB_DIV) /* length of one acelp or tcx20 frame */
|
||||||
|
#define NB_SUBFR_1024 \
|
||||||
|
(L_DIV_1024 / L_SUBFR) /* number of 5ms subframe per division */
|
||||||
|
#define NB_SUBFR_SUPERFR_1024 \
|
||||||
|
(L_FRAME_PLUS_1024 / L_SUBFR) /* number of 5ms subframe per 80ms frame */
|
||||||
|
#define AAC_SFD_1024 (NB_SUBFR_SUPERFR_1024 / 2) /* AAC delay (subframe) */
|
||||||
|
#define AAC_DELAY_1024 (AAC_SFD_1024 * L_SUBFR) /* AAC delay (samples) */
|
||||||
|
#define SYN_SFD_1024 (AAC_SFD_1024 - BPF_SFD) /* synthesis delay (subframe) */
|
||||||
|
#define SYN_DELAY_1024 \
|
||||||
|
(SYN_SFD_1024 * L_SUBFR) /* synthesis delay (samples) \
|
||||||
|
*/
|
||||||
|
#define LFAC_1024 (L_DIV_1024 / 2) /* FAC frame length */
|
||||||
|
#define LFAC_SHORT_1024 \
|
||||||
|
(L_DIV_1024 / 4) /* for transitions EIGHT_SHORT FD->LPD and vv. */
|
||||||
|
#define FDNS_NPTS_1024 64 /* FD noise shaping resolution (64=100Hz/point) */
|
||||||
|
|
||||||
|
/* definitions for coreCoderFrameLength = 768 */
|
||||||
|
#define L_FRAME_PLUS_768 768
|
||||||
|
#define L_DIV_768 \
|
||||||
|
(L_FRAME_PLUS_768 / NB_DIV) /* length of one acelp or tcx20 frame */
|
||||||
|
#define NB_SUBFR_768 \
|
||||||
|
(L_DIV_768 / L_SUBFR) /* number of 5ms subframe per division */
|
||||||
|
#define NB_SUBFR_SUPERFR_768 \
|
||||||
|
(L_FRAME_PLUS_768 / L_SUBFR) /* number of 5ms subframe per 80ms frame */
|
||||||
|
#define AAC_SFD_768 (NB_SUBFR_SUPERFR_768 / 2) /* AAC delay (subframe) */
|
||||||
|
#define AAC_DELAY_768 (AAC_SFD_768 * L_SUBFR) /* AAC delay (samples) */
|
||||||
|
#define SYN_SFD_768 (AAC_SFD_768 - BPF_SFD) /* synthesis delay (subframe) */
|
||||||
|
#define SYN_DELAY_768 (SYN_SFD_768 * L_SUBFR) /* synthesis delay (samples) */
|
||||||
|
#define LFAC_768 (L_DIV_768 / 2) /* FAC frame length */
|
||||||
|
#define LFAC_SHORT_768 \
|
||||||
|
(L_DIV_768 / 4) /* for transitions EIGHT_SHORT FD->LPD and vv. */
|
||||||
|
|
||||||
|
/* maximum (used for memory allocation) */
|
||||||
|
#define L_FRAME_PLUS L_FRAME_PLUS_1024
|
||||||
|
#define L_DIV L_DIV_1024
|
||||||
|
#define NB_SUBFR NB_SUBFR_1024
|
||||||
|
#define NB_SUBFR_SUPERFR NB_SUBFR_SUPERFR_1024
|
||||||
|
#define AAC_SFD AAC_SFD_1024
|
||||||
|
#define AAC_DELAY AAC_DELAY_1024
|
||||||
|
#define SYN_SFD SYN_SFD_1024
|
||||||
|
#define SYN_DELAY SYN_DELAY_1024
|
||||||
|
#define LFAC LFAC_1024
|
||||||
|
#define LFAC_SHORT LFAC_SHORT_1024
|
||||||
|
#define FDNS_NPTS FDNS_NPTS_1024
|
||||||
|
|
||||||
|
#endif /* USACDEC_CONST_H */
|
||||||
743
libAACdec/src/usacdec_fac.cpp
Normal file
743
libAACdec/src/usacdec_fac.cpp
Normal file
@ -0,0 +1,743 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Manuel Jander
|
||||||
|
|
||||||
|
Description: USAC FAC
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#include "usacdec_fac.h"
|
||||||
|
|
||||||
|
#include "usacdec_const.h"
|
||||||
|
#include "usacdec_lpc.h"
|
||||||
|
#include "usacdec_acelp.h"
|
||||||
|
#include "usacdec_rom.h"
|
||||||
|
#include "dct.h"
|
||||||
|
#include "FDK_tools_rom.h"
|
||||||
|
#include "mdct.h"
|
||||||
|
|
||||||
|
#define SPEC_FAC(ptr, i, gl) ((ptr) + ((i) * (gl)))
|
||||||
|
|
||||||
|
FIXP_DBL *CLpd_FAC_GetMemory(CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
UCHAR mod[NB_DIV], int *pState) {
|
||||||
|
FIXP_DBL *ptr;
|
||||||
|
int i;
|
||||||
|
int k = 0;
|
||||||
|
int max_windows = 8;
|
||||||
|
|
||||||
|
FDK_ASSERT(*pState >= 0 && *pState < max_windows);
|
||||||
|
|
||||||
|
/* Look for free space to store FAC data. 2 FAC data blocks fit into each TCX
|
||||||
|
* spectral data block. */
|
||||||
|
for (i = *pState; i < max_windows; i++) {
|
||||||
|
if (mod[i >> 1] == 0) {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
*pState = i + 1;
|
||||||
|
|
||||||
|
if (i == max_windows) {
|
||||||
|
ptr = pAacDecoderChannelInfo->data.usac.fac_data0;
|
||||||
|
} else {
|
||||||
|
FDK_ASSERT(mod[(i >> 1)] == 0);
|
||||||
|
ptr = SPEC_FAC(pAacDecoderChannelInfo->pSpectralCoefficient, i,
|
||||||
|
pAacDecoderChannelInfo->granuleLength << k);
|
||||||
|
}
|
||||||
|
|
||||||
|
return ptr;
|
||||||
|
}
|
||||||
|
|
||||||
|
int CLpd_FAC_Read(HANDLE_FDK_BITSTREAM hBs, FIXP_DBL *pFac, UCHAR *pFacScale,
|
||||||
|
int length, int use_gain, int frame) {
|
||||||
|
FIXP_DBL fac_gain;
|
||||||
|
int fac_gain_e = 0;
|
||||||
|
|
||||||
|
if (use_gain) {
|
||||||
|
CLpd_DecodeGain(&fac_gain, &fac_gain_e, FDKreadBits(hBs, 7));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (CLpc_DecodeAVQ(hBs, pFac, 1, 1, length) != 0) {
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
{
|
||||||
|
int scale;
|
||||||
|
|
||||||
|
scale = getScalefactor(pFac, length);
|
||||||
|
scaleValues(pFac, length, scale);
|
||||||
|
pFacScale[frame] = DFRACT_BITS - 1 - scale;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (use_gain) {
|
||||||
|
int i;
|
||||||
|
|
||||||
|
pFacScale[frame] += fac_gain_e;
|
||||||
|
|
||||||
|
for (i = 0; i < length; i++) {
|
||||||
|
pFac[i] = fMult(pFac[i], fac_gain);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Apply synthesis filter with zero input to x. The overall filter gain
|
||||||
|
* is 1.0.
|
||||||
|
* \param a LPC filter coefficients.
|
||||||
|
* \param length length of the input/output data vector x.
|
||||||
|
* \param x input/output vector, where the synthesis filter is applied in place.
|
||||||
|
*/
|
||||||
|
static void Syn_filt_zero(const FIXP_LPC a[], const INT a_exp, INT length,
|
||||||
|
FIXP_DBL x[]) {
|
||||||
|
int i, j;
|
||||||
|
FIXP_DBL L_tmp;
|
||||||
|
|
||||||
|
for (i = 0; i < length; i++) {
|
||||||
|
L_tmp = (FIXP_DBL)0;
|
||||||
|
|
||||||
|
for (j = 0; j < fMin(i, M_LP_FILTER_ORDER); j++) {
|
||||||
|
L_tmp -= fMultDiv2(a[j], x[i - (j + 1)]);
|
||||||
|
}
|
||||||
|
|
||||||
|
L_tmp = scaleValue(L_tmp, a_exp + 1);
|
||||||
|
|
||||||
|
x[i] = scaleValueSaturate((x[i] >> 1) + (L_tmp >> 1),
|
||||||
|
1); /* Avoid overflow issues and saturate. */
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Table is also correct for coreCoderFrameLength = 768. Factor 3/4 is canceled
|
||||||
|
out: gainFac = 0.5 * sqrt(fac_length/lFrame)
|
||||||
|
*/
|
||||||
|
static const FIXP_DBL gainFac[4] = {0x40000000, 0x2d413ccd, 0x20000000,
|
||||||
|
0x16a09e66};
|
||||||
|
|
||||||
|
void CFac_ApplyGains(FIXP_DBL fac_data[LFAC], const INT fac_length,
|
||||||
|
const FIXP_DBL tcx_gain, const FIXP_DBL alfd_gains[],
|
||||||
|
const INT mod) {
|
||||||
|
FIXP_DBL facFactor;
|
||||||
|
int i;
|
||||||
|
|
||||||
|
FDK_ASSERT((fac_length == 128) || (fac_length == 96));
|
||||||
|
|
||||||
|
/* 2) Apply gain factor to FAC data */
|
||||||
|
facFactor = fMult(gainFac[mod], tcx_gain);
|
||||||
|
for (i = 0; i < fac_length; i++) {
|
||||||
|
fac_data[i] = fMult(fac_data[i], facFactor);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* 3) Apply spectrum deshaping using alfd_gains */
|
||||||
|
for (i = 0; i < fac_length / 4; i++) {
|
||||||
|
int k;
|
||||||
|
|
||||||
|
k = i >> (3 - mod);
|
||||||
|
fac_data[i] = fMult(fac_data[i], alfd_gains[k])
|
||||||
|
<< 1; /* alfd_gains is scaled by one bit. */
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void CFac_CalcFacSignal(FIXP_DBL *pOut, FIXP_DBL *pFac,
|
||||||
|
const int fac_scale, const int fac_length,
|
||||||
|
const FIXP_LPC A[M_LP_FILTER_ORDER],
|
||||||
|
const INT A_exp, const int fAddZir,
|
||||||
|
const int isFdFac) {
|
||||||
|
FIXP_LPC wA[M_LP_FILTER_ORDER];
|
||||||
|
FIXP_DBL tf_gain = (FIXP_DBL)0;
|
||||||
|
int wlength;
|
||||||
|
int scale = fac_scale;
|
||||||
|
|
||||||
|
/* obtain tranform gain. */
|
||||||
|
imdct_gain(&tf_gain, &scale, isFdFac ? 0 : fac_length);
|
||||||
|
|
||||||
|
/* 4) Compute inverse DCT-IV of FAC data. Output scale of DCT IV is 16 bits.
|
||||||
|
*/
|
||||||
|
dct_IV(pFac, fac_length, &scale);
|
||||||
|
/* dct_IV scale = log2(fac_length). "- 7" is a factor of 2/128 */
|
||||||
|
if (tf_gain != (FIXP_DBL)0) { /* non-radix 2 transform gain */
|
||||||
|
int i;
|
||||||
|
|
||||||
|
for (i = 0; i < fac_length; i++) {
|
||||||
|
pFac[i] = fMult(tf_gain, pFac[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
scaleValuesSaturate(pOut, pFac, fac_length,
|
||||||
|
scale); /* Avoid overflow issues and saturate. */
|
||||||
|
|
||||||
|
E_LPC_a_weight(wA, A, M_LP_FILTER_ORDER);
|
||||||
|
|
||||||
|
/* We need the output of the IIR filter to be longer than "fac_length".
|
||||||
|
For this reason we run it with zero input appended to the end of the input
|
||||||
|
sequence, i.e. we generate its ZIR and extend the output signal.*/
|
||||||
|
FDKmemclear(pOut + fac_length, fac_length * sizeof(FIXP_DBL));
|
||||||
|
wlength = 2 * fac_length;
|
||||||
|
|
||||||
|
/* 5) Apply weighted synthesis filter to FAC data, including optional Zir (5.
|
||||||
|
* item 4). */
|
||||||
|
Syn_filt_zero(wA, A_exp, wlength, pOut);
|
||||||
|
}
|
||||||
|
|
||||||
|
INT CLpd_FAC_Mdct2Acelp(H_MDCT hMdct, FIXP_DBL *output, FIXP_DBL *pFac,
|
||||||
|
const int fac_scale, FIXP_LPC *A, INT A_exp,
|
||||||
|
INT nrOutSamples, const INT fac_length,
|
||||||
|
const INT isFdFac, UCHAR prevWindowShape) {
|
||||||
|
FIXP_DBL *pOvl;
|
||||||
|
FIXP_DBL *pOut0;
|
||||||
|
const FIXP_WTP *pWindow;
|
||||||
|
int i, fl, nrSamples = 0;
|
||||||
|
|
||||||
|
FDK_ASSERT(fac_length <= 1024 / (4 * 2));
|
||||||
|
|
||||||
|
fl = fac_length * 2;
|
||||||
|
|
||||||
|
pWindow = FDKgetWindowSlope(fl, prevWindowShape);
|
||||||
|
|
||||||
|
/* Adapt window slope length in case of frame loss. */
|
||||||
|
if (hMdct->prev_fr != fl) {
|
||||||
|
int nl = 0;
|
||||||
|
imdct_adapt_parameters(hMdct, &fl, &nl, fac_length, pWindow, nrOutSamples);
|
||||||
|
FDK_ASSERT(nl == 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nrSamples < nrOutSamples) {
|
||||||
|
pOut0 = output;
|
||||||
|
nrSamples += hMdct->ov_offset;
|
||||||
|
/* Purge buffered output. */
|
||||||
|
FDKmemcpy(pOut0, hMdct->overlap.time, hMdct->ov_offset * sizeof(pOut0[0]));
|
||||||
|
hMdct->ov_offset = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
pOvl = hMdct->overlap.freq + hMdct->ov_size - 1;
|
||||||
|
|
||||||
|
if (nrSamples >= nrOutSamples) {
|
||||||
|
pOut0 = hMdct->overlap.time + hMdct->ov_offset;
|
||||||
|
hMdct->ov_offset += hMdct->prev_nr + fl / 2;
|
||||||
|
} else {
|
||||||
|
pOut0 = output + nrSamples;
|
||||||
|
nrSamples += hMdct->prev_nr + fl / 2;
|
||||||
|
}
|
||||||
|
if (hMdct->prevPrevAliasSymmetry == 0) {
|
||||||
|
for (i = 0; i < hMdct->prev_nr; i++) {
|
||||||
|
FIXP_DBL x = -(*pOvl--);
|
||||||
|
*pOut0 = IMDCT_SCALE_DBL(x);
|
||||||
|
pOut0++;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
for (i = 0; i < hMdct->prev_nr; i++) {
|
||||||
|
FIXP_DBL x = (*pOvl--);
|
||||||
|
*pOut0 = IMDCT_SCALE_DBL(x);
|
||||||
|
pOut0++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
hMdct->prev_nr = 0;
|
||||||
|
|
||||||
|
{
|
||||||
|
if (pFac != NULL) {
|
||||||
|
/* Note: The FAC gain might have been applied directly after bit stream
|
||||||
|
* parse in this case. */
|
||||||
|
CFac_CalcFacSignal(pOut0, pFac, fac_scale, fac_length, A, A_exp, 0,
|
||||||
|
isFdFac);
|
||||||
|
} else {
|
||||||
|
/* Clear buffer because of the overlap and ADD! */
|
||||||
|
FDKmemclear(pOut0, fac_length * sizeof(FIXP_DBL));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
i = 0;
|
||||||
|
|
||||||
|
if (hMdct->prevPrevAliasSymmetry == 0) {
|
||||||
|
for (; i < fl / 2; i++) {
|
||||||
|
FIXP_DBL x0;
|
||||||
|
|
||||||
|
/* Overlap Add */
|
||||||
|
x0 = -fMult(*pOvl--, pWindow[i].v.re);
|
||||||
|
|
||||||
|
*pOut0 += IMDCT_SCALE_DBL(x0);
|
||||||
|
pOut0++;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
for (; i < fl / 2; i++) {
|
||||||
|
FIXP_DBL x0;
|
||||||
|
|
||||||
|
/* Overlap Add */
|
||||||
|
x0 = fMult(*pOvl--, pWindow[i].v.re);
|
||||||
|
|
||||||
|
*pOut0 += IMDCT_SCALE_DBL(x0);
|
||||||
|
pOut0++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (hMdct->pFacZir !=
|
||||||
|
0) { /* this should only happen for ACELP -> TCX20 -> ACELP transition */
|
||||||
|
FIXP_DBL *pOut = pOut0 - fl / 2; /* fl/2 == fac_length */
|
||||||
|
for (i = 0; i < fl / 2; i++) {
|
||||||
|
pOut[i] += IMDCT_SCALE_DBL(hMdct->pFacZir[i]);
|
||||||
|
}
|
||||||
|
hMdct->pFacZir = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
hMdct->prev_fr = 0;
|
||||||
|
hMdct->prev_nr = 0;
|
||||||
|
hMdct->prev_tl = 0;
|
||||||
|
hMdct->prevPrevAliasSymmetry = hMdct->prevAliasSymmetry;
|
||||||
|
|
||||||
|
return nrSamples;
|
||||||
|
}
|
||||||
|
|
||||||
|
INT CLpd_FAC_Acelp2Mdct(H_MDCT hMdct, FIXP_DBL *output, FIXP_DBL *_pSpec,
|
||||||
|
const SHORT spec_scale[], const int nSpec,
|
||||||
|
FIXP_DBL *pFac, const int fac_scale,
|
||||||
|
const INT fac_length, INT noOutSamples, const INT tl,
|
||||||
|
const FIXP_WTP *wrs, const INT fr, FIXP_LPC A[16],
|
||||||
|
INT A_exp, CAcelpStaticMem *acelp_mem,
|
||||||
|
const FIXP_DBL gain, const int last_frame_lost,
|
||||||
|
const int isFdFac, const UCHAR last_lpd_mode,
|
||||||
|
const int k, int currAliasingSymmetry) {
|
||||||
|
FIXP_DBL *pCurr, *pOvl, *pSpec;
|
||||||
|
const FIXP_WTP *pWindow;
|
||||||
|
const FIXP_WTB *FacWindowZir_conceal;
|
||||||
|
UCHAR doFacZirConceal = 0;
|
||||||
|
int doDeemph = 1;
|
||||||
|
const FIXP_WTB *FacWindowZir, *FacWindowSynth;
|
||||||
|
FIXP_DBL *pOut0 = output, *pOut1;
|
||||||
|
int w, i, fl, nl, nr, f_len, nrSamples = 0, s = 0, scale, total_gain_e;
|
||||||
|
FIXP_DBL *pF, *pFAC_and_FAC_ZIR = NULL;
|
||||||
|
FIXP_DBL total_gain = gain;
|
||||||
|
|
||||||
|
FDK_ASSERT(fac_length <= 1024 / (4 * 2));
|
||||||
|
switch (fac_length) {
|
||||||
|
/* coreCoderFrameLength = 1024 */
|
||||||
|
case 128:
|
||||||
|
pWindow = SineWindow256;
|
||||||
|
FacWindowZir = FacWindowZir128;
|
||||||
|
FacWindowSynth = FacWindowSynth128;
|
||||||
|
break;
|
||||||
|
case 64:
|
||||||
|
pWindow = SineWindow128;
|
||||||
|
FacWindowZir = FacWindowZir64;
|
||||||
|
FacWindowSynth = FacWindowSynth64;
|
||||||
|
break;
|
||||||
|
case 32:
|
||||||
|
pWindow = SineWindow64;
|
||||||
|
FacWindowZir = FacWindowZir32;
|
||||||
|
FacWindowSynth = FacWindowSynth32;
|
||||||
|
break;
|
||||||
|
/* coreCoderFrameLength = 768 */
|
||||||
|
case 96:
|
||||||
|
pWindow = SineWindow192;
|
||||||
|
FacWindowZir = FacWindowZir96;
|
||||||
|
FacWindowSynth = FacWindowSynth96;
|
||||||
|
break;
|
||||||
|
case 48:
|
||||||
|
pWindow = SineWindow96;
|
||||||
|
FacWindowZir = FacWindowZir48;
|
||||||
|
FacWindowSynth = FacWindowSynth48;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
FDK_ASSERT(0);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
FacWindowZir_conceal = FacWindowSynth;
|
||||||
|
/* Derive NR and NL */
|
||||||
|
fl = fac_length * 2;
|
||||||
|
nl = (tl - fl) >> 1;
|
||||||
|
nr = (tl - fr) >> 1;
|
||||||
|
|
||||||
|
if (noOutSamples > nrSamples) {
|
||||||
|
/* Purge buffered output. */
|
||||||
|
FDKmemcpy(pOut0, hMdct->overlap.time, hMdct->ov_offset * sizeof(pOut0[0]));
|
||||||
|
nrSamples = hMdct->ov_offset;
|
||||||
|
hMdct->ov_offset = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nrSamples >= noOutSamples) {
|
||||||
|
pOut1 = hMdct->overlap.time + hMdct->ov_offset;
|
||||||
|
if (hMdct->ov_offset < fac_length) {
|
||||||
|
pOut0 = output + nrSamples;
|
||||||
|
} else {
|
||||||
|
pOut0 = pOut1;
|
||||||
|
}
|
||||||
|
hMdct->ov_offset += fac_length + nl;
|
||||||
|
} else {
|
||||||
|
pOut1 = output + nrSamples;
|
||||||
|
pOut0 = output + nrSamples;
|
||||||
|
}
|
||||||
|
|
||||||
|
{
|
||||||
|
pFAC_and_FAC_ZIR = CLpd_ACELP_GetFreeExcMem(acelp_mem, 2 * fac_length);
|
||||||
|
{
|
||||||
|
const FIXP_DBL *pTmp1, *pTmp2;
|
||||||
|
|
||||||
|
doFacZirConceal |= ((last_frame_lost != 0) && (k == 0));
|
||||||
|
doDeemph &= (last_lpd_mode != 4);
|
||||||
|
if (doFacZirConceal) {
|
||||||
|
/* ACELP contribution in concealment case:
|
||||||
|
Use ZIR with a modified ZIR window to preserve some more energy.
|
||||||
|
Dont use FAC, which contains wrong information for concealed frame
|
||||||
|
Dont use last ACELP samples, but double ZIR, instead (afterwards) */
|
||||||
|
FDKmemclear(pFAC_and_FAC_ZIR, 2 * fac_length * sizeof(FIXP_DBL));
|
||||||
|
FacWindowSynth = (FIXP_WTB *)pFAC_and_FAC_ZIR;
|
||||||
|
FacWindowZir = FacWindowZir_conceal;
|
||||||
|
} else {
|
||||||
|
CFac_CalcFacSignal(pFAC_and_FAC_ZIR, pFac, fac_scale + s, fac_length, A,
|
||||||
|
A_exp, 1, isFdFac);
|
||||||
|
}
|
||||||
|
/* 6) Get windowed past ACELP samples and ACELP ZIR signal */
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Get ACELP ZIR (pFac[]) and ACELP past samples (pOut0[]) and add them
|
||||||
|
* to the FAC synth signal contribution on pOut1[].
|
||||||
|
*/
|
||||||
|
{
|
||||||
|
{
|
||||||
|
CLpd_Acelp_Zir(A, A_exp, acelp_mem, fac_length, pFac, doDeemph);
|
||||||
|
|
||||||
|
pTmp1 = pOut0;
|
||||||
|
pTmp2 = pFac;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0, w = 0; i < fac_length; i++) {
|
||||||
|
FIXP_DBL x;
|
||||||
|
/* Div2 is compensated by table scaling */
|
||||||
|
x = fMultDiv2(pTmp2[i], FacWindowZir[w]);
|
||||||
|
x += fMultDiv2(pTmp1[-i - 1], FacWindowSynth[w]);
|
||||||
|
x += pFAC_and_FAC_ZIR[i];
|
||||||
|
pOut1[i] = x;
|
||||||
|
|
||||||
|
w++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (doFacZirConceal) {
|
||||||
|
/* ZIR is the only ACELP contribution, so double it */
|
||||||
|
scaleValues(pOut1, fac_length, 1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nrSamples < noOutSamples) {
|
||||||
|
nrSamples += fac_length + nl;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Obtain transform gain */
|
||||||
|
total_gain = gain;
|
||||||
|
total_gain_e = 0;
|
||||||
|
imdct_gain(&total_gain, &total_gain_e, tl);
|
||||||
|
|
||||||
|
/* IMDCT overlap add */
|
||||||
|
scale = total_gain_e;
|
||||||
|
pSpec = _pSpec;
|
||||||
|
|
||||||
|
/* Note:when comming from an LPD frame (TCX/ACELP) the previous alisaing
|
||||||
|
* symmetry must always be 0 */
|
||||||
|
if (currAliasingSymmetry == 0) {
|
||||||
|
dct_IV(pSpec, tl, &scale);
|
||||||
|
} else {
|
||||||
|
FIXP_DBL _tmp[1024 + ALIGNMENT_DEFAULT / sizeof(FIXP_DBL)];
|
||||||
|
FIXP_DBL *tmp = (FIXP_DBL *)ALIGN_PTR(_tmp);
|
||||||
|
C_ALLOC_ALIGNED_REGISTER(tmp, sizeof(_tmp));
|
||||||
|
dst_III(pSpec, tmp, tl, &scale);
|
||||||
|
C_ALLOC_ALIGNED_UNREGISTER(tmp);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Optional scaling of time domain - no yet windowed - of current spectrum */
|
||||||
|
if (total_gain != (FIXP_DBL)0) {
|
||||||
|
scaleValuesWithFactor(pSpec, total_gain, tl, spec_scale[0] + scale);
|
||||||
|
} else {
|
||||||
|
scaleValues(pSpec, tl, spec_scale[0] + scale);
|
||||||
|
}
|
||||||
|
|
||||||
|
pOut1 += fl / 2 - 1;
|
||||||
|
pCurr = pSpec + tl - fl / 2;
|
||||||
|
|
||||||
|
for (i = 0; i < fl / 2; i++) {
|
||||||
|
FIXP_DBL x1;
|
||||||
|
|
||||||
|
/* FAC signal is already on pOut1, because of that the += operator. */
|
||||||
|
x1 = fMult(*pCurr++, pWindow[i].v.re);
|
||||||
|
FDK_ASSERT((pOut1 >= hMdct->overlap.time &&
|
||||||
|
pOut1 < hMdct->overlap.time + hMdct->ov_size) ||
|
||||||
|
(pOut1 >= output && pOut1 < output + 1024));
|
||||||
|
*pOut1 += IMDCT_SCALE_DBL(-x1);
|
||||||
|
pOut1--;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* NL output samples TL/2+FL/2..TL. - current[FL/2..0] */
|
||||||
|
pOut1 += (fl / 2) + 1;
|
||||||
|
|
||||||
|
pFAC_and_FAC_ZIR += fac_length; /* set pointer to beginning of FAC ZIR */
|
||||||
|
|
||||||
|
if (nl == 0) {
|
||||||
|
/* save pointer to write FAC ZIR data later */
|
||||||
|
hMdct->pFacZir = pFAC_and_FAC_ZIR;
|
||||||
|
} else {
|
||||||
|
FDK_ASSERT(nl >= fac_length);
|
||||||
|
/* FAC ZIR will be added now ... */
|
||||||
|
hMdct->pFacZir = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
pF = pFAC_and_FAC_ZIR;
|
||||||
|
f_len = fac_length;
|
||||||
|
|
||||||
|
pCurr = pSpec + tl - fl / 2 - 1;
|
||||||
|
for (i = 0; i < nl; i++) {
|
||||||
|
FIXP_DBL x = -(*pCurr--);
|
||||||
|
/* 5) (item 4) Synthesis filter Zir component, FAC ZIR (another one). */
|
||||||
|
if (i < f_len) {
|
||||||
|
x += *pF++;
|
||||||
|
}
|
||||||
|
|
||||||
|
FDK_ASSERT((pOut1 >= hMdct->overlap.time &&
|
||||||
|
pOut1 < hMdct->overlap.time + hMdct->ov_size) ||
|
||||||
|
(pOut1 >= output && pOut1 < output + 1024));
|
||||||
|
*pOut1 = IMDCT_SCALE_DBL(x);
|
||||||
|
pOut1++;
|
||||||
|
}
|
||||||
|
|
||||||
|
hMdct->prev_nr = nr;
|
||||||
|
hMdct->prev_fr = fr;
|
||||||
|
hMdct->prev_wrs = wrs;
|
||||||
|
hMdct->prev_tl = tl;
|
||||||
|
hMdct->prevPrevAliasSymmetry = hMdct->prevAliasSymmetry;
|
||||||
|
hMdct->prevAliasSymmetry = currAliasingSymmetry;
|
||||||
|
fl = fr;
|
||||||
|
nl = nr;
|
||||||
|
|
||||||
|
pOvl = pSpec + tl / 2 - 1;
|
||||||
|
pOut0 = pOut1;
|
||||||
|
|
||||||
|
for (w = 1; w < nSpec; w++) /* for ACELP -> FD short */
|
||||||
|
{
|
||||||
|
const FIXP_WTP *pWindow_prev;
|
||||||
|
|
||||||
|
/* Setup window pointers */
|
||||||
|
pWindow_prev = hMdct->prev_wrs;
|
||||||
|
|
||||||
|
/* Current spectrum */
|
||||||
|
pSpec = _pSpec + w * tl;
|
||||||
|
|
||||||
|
scale = total_gain_e;
|
||||||
|
|
||||||
|
/* For the second, third, etc. short frames the alisaing symmetry is equal,
|
||||||
|
* either (0,0) or (1,1) */
|
||||||
|
if (currAliasingSymmetry == 0) {
|
||||||
|
/* DCT IV of current spectrum */
|
||||||
|
dct_IV(pSpec, tl, &scale);
|
||||||
|
} else {
|
||||||
|
dst_IV(pSpec, tl, &scale);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Optional scaling of time domain - no yet windowed - of current spectrum
|
||||||
|
*/
|
||||||
|
/* and de-scale current spectrum signal (time domain, no yet windowed) */
|
||||||
|
if (total_gain != (FIXP_DBL)0) {
|
||||||
|
scaleValuesWithFactor(pSpec, total_gain, tl, spec_scale[w] + scale);
|
||||||
|
} else {
|
||||||
|
scaleValues(pSpec, tl, spec_scale[w] + scale);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (noOutSamples <= nrSamples) {
|
||||||
|
/* Divert output first half to overlap buffer if we already got enough
|
||||||
|
* output samples. */
|
||||||
|
pOut0 = hMdct->overlap.time + hMdct->ov_offset;
|
||||||
|
hMdct->ov_offset += hMdct->prev_nr + fl / 2;
|
||||||
|
} else {
|
||||||
|
/* Account output samples */
|
||||||
|
nrSamples += hMdct->prev_nr + fl / 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* NR output samples 0 .. NR. -overlap[TL/2..TL/2-NR] */
|
||||||
|
for (i = 0; i < hMdct->prev_nr; i++) {
|
||||||
|
FIXP_DBL x = -(*pOvl--);
|
||||||
|
*pOut0 = IMDCT_SCALE_DBL(x);
|
||||||
|
pOut0++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (noOutSamples <= nrSamples) {
|
||||||
|
/* Divert output second half to overlap buffer if we already got enough
|
||||||
|
* output samples. */
|
||||||
|
pOut1 = hMdct->overlap.time + hMdct->ov_offset + fl / 2 - 1;
|
||||||
|
hMdct->ov_offset += fl / 2 + nl;
|
||||||
|
} else {
|
||||||
|
pOut1 = pOut0 + (fl - 1);
|
||||||
|
nrSamples += fl / 2 + nl;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* output samples before window crossing point NR .. TL/2.
|
||||||
|
* -overlap[TL/2-NR..TL/2-NR-FL/2] + current[NR..TL/2] */
|
||||||
|
/* output samples after window crossing point TL/2 .. TL/2+FL/2.
|
||||||
|
* -overlap[0..FL/2] - current[TL/2..FL/2] */
|
||||||
|
pCurr = pSpec + tl - fl / 2;
|
||||||
|
if (currAliasingSymmetry == 0) {
|
||||||
|
for (i = 0; i < fl / 2; i++) {
|
||||||
|
FIXP_DBL x0, x1;
|
||||||
|
|
||||||
|
cplxMult(&x1, &x0, *pCurr++, -*pOvl--, pWindow_prev[i]);
|
||||||
|
*pOut0 = IMDCT_SCALE_DBL(x0);
|
||||||
|
*pOut1 = IMDCT_SCALE_DBL(-x1);
|
||||||
|
pOut0++;
|
||||||
|
pOut1--;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (hMdct->prevPrevAliasSymmetry == 0) {
|
||||||
|
/* Jump DST II -> DST IV for the second window */
|
||||||
|
for (i = 0; i < fl / 2; i++) {
|
||||||
|
FIXP_DBL x0, x1;
|
||||||
|
|
||||||
|
cplxMult(&x1, &x0, *pCurr++, -*pOvl--, pWindow_prev[i]);
|
||||||
|
*pOut0 = IMDCT_SCALE_DBL(x0);
|
||||||
|
*pOut1 = IMDCT_SCALE_DBL(x1);
|
||||||
|
pOut0++;
|
||||||
|
pOut1--;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
/* Jump DST IV -> DST IV from the second window on */
|
||||||
|
for (i = 0; i < fl / 2; i++) {
|
||||||
|
FIXP_DBL x0, x1;
|
||||||
|
|
||||||
|
cplxMult(&x1, &x0, *pCurr++, *pOvl--, pWindow_prev[i]);
|
||||||
|
*pOut0 = IMDCT_SCALE_DBL(x0);
|
||||||
|
*pOut1 = IMDCT_SCALE_DBL(x1);
|
||||||
|
pOut0++;
|
||||||
|
pOut1--;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (hMdct->pFacZir != 0) {
|
||||||
|
/* add FAC ZIR of previous ACELP -> mdct transition */
|
||||||
|
FIXP_DBL *pOut = pOut0 - fl / 2;
|
||||||
|
FDK_ASSERT(fl / 2 <= 128);
|
||||||
|
for (i = 0; i < fl / 2; i++) {
|
||||||
|
pOut[i] += IMDCT_SCALE_DBL(hMdct->pFacZir[i]);
|
||||||
|
}
|
||||||
|
hMdct->pFacZir = NULL;
|
||||||
|
}
|
||||||
|
pOut0 += (fl / 2);
|
||||||
|
|
||||||
|
/* NL output samples TL/2+FL/2..TL. - current[FL/2..0] */
|
||||||
|
pOut1 += (fl / 2) + 1;
|
||||||
|
pCurr = pSpec + tl - fl / 2 - 1;
|
||||||
|
for (i = 0; i < nl; i++) {
|
||||||
|
FIXP_DBL x = -(*pCurr--);
|
||||||
|
*pOut1 = IMDCT_SCALE_DBL(x);
|
||||||
|
pOut1++;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Set overlap source pointer for next window pOvl = pSpec + tl/2 - 1; */
|
||||||
|
pOvl = pSpec + tl / 2 - 1;
|
||||||
|
|
||||||
|
/* Previous window values. */
|
||||||
|
hMdct->prev_nr = nr;
|
||||||
|
hMdct->prev_fr = fr;
|
||||||
|
hMdct->prev_tl = tl;
|
||||||
|
hMdct->prev_wrs = pWindow_prev;
|
||||||
|
hMdct->prevPrevAliasSymmetry = hMdct->prevAliasSymmetry;
|
||||||
|
hMdct->prevAliasSymmetry = currAliasingSymmetry;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Save overlap */
|
||||||
|
|
||||||
|
pOvl = hMdct->overlap.freq + hMdct->ov_size - tl / 2;
|
||||||
|
FDK_ASSERT(pOvl >= hMdct->overlap.time + hMdct->ov_offset);
|
||||||
|
FDK_ASSERT(tl / 2 <= hMdct->ov_size);
|
||||||
|
for (i = 0; i < tl / 2; i++) {
|
||||||
|
pOvl[i] = _pSpec[i + (w - 1) * tl];
|
||||||
|
}
|
||||||
|
|
||||||
|
return nrSamples;
|
||||||
|
}
|
||||||
191
libAACdec/src/usacdec_fac.h
Normal file
191
libAACdec/src/usacdec_fac.h
Normal file
@ -0,0 +1,191 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Manuel Jander
|
||||||
|
|
||||||
|
Description: USAC FAC
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_FAC_H
|
||||||
|
#define USACDEC_FAC_H
|
||||||
|
|
||||||
|
#include "channelinfo.h"
|
||||||
|
#include "FDK_bitstream.h"
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Get the address of a memory area of the spectral data memory were the
|
||||||
|
* FAC data can be stored into.
|
||||||
|
* \param spec SPECTRAL_PTR pointing to the current spectral data.
|
||||||
|
* \param mod the current LPD mod array.
|
||||||
|
* \param pState pointer to a private state variable which must be 0 for the
|
||||||
|
* first call and not changed externally.
|
||||||
|
* \param isFullbandLPD is 1 if fullband LPD mode is on, otherwise it is 0.
|
||||||
|
*/
|
||||||
|
FIXP_DBL *CLpd_FAC_GetMemory(CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
UCHAR mod[NB_SUBFR], int *pState);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief read a fac bitstream data block.
|
||||||
|
* \param hBs a bit stream handle, where the fac bitstream data is located.
|
||||||
|
* \param pFac pointer to were the FAC data will be stored into.
|
||||||
|
* \param pFacScale pointer to were the FAC data scale value will be stored
|
||||||
|
* into.
|
||||||
|
* \param tcx_gain value to be used as FAC gain. If zero, read fac_gain from
|
||||||
|
* bitstream.
|
||||||
|
* \param tcx_gain_e exponen value of tcx_gain.
|
||||||
|
* \param frame the subframe to be considered from the current superframe.
|
||||||
|
* Always 0 for FD case.
|
||||||
|
* \return 0 on success, -1 on error.
|
||||||
|
*/
|
||||||
|
int CLpd_FAC_Read(HANDLE_FDK_BITSTREAM hBs, FIXP_DBL *pFac, UCHAR *pFacScale,
|
||||||
|
int length, int use_gain, int frame);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Apply TCX and ALFD gains to FAC data.
|
||||||
|
* \param fac_data pointer to FAC data.
|
||||||
|
* \param fac_length FAC length (128 or 96).
|
||||||
|
* \param tcx_gain TCX gain
|
||||||
|
* \param alfd_gains pointer to alfd gains.
|
||||||
|
* \param mod mod value (1,2,3) of TCX frame where the FAC signal needs to be
|
||||||
|
* applied.
|
||||||
|
*/
|
||||||
|
void CFac_ApplyGains(FIXP_DBL fac_data[LFAC], const INT fac_length,
|
||||||
|
const FIXP_DBL tcx_gain, const FIXP_DBL alfd_gains[],
|
||||||
|
const INT mod);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Do FAC transition from frequency domain to ACELP domain.
|
||||||
|
*/
|
||||||
|
INT CLpd_FAC_Mdct2Acelp(H_MDCT hMdct, FIXP_DBL *output, FIXP_DBL *pFac_data,
|
||||||
|
const int fac_data_e, FIXP_LPC *A, INT A_exp,
|
||||||
|
INT nrOutSamples, const INT fac_length,
|
||||||
|
const INT isFdFac, UCHAR prevWindowShape);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Do FAC transition from ACELP domain to frequency domain.
|
||||||
|
* \param hMdct MDCT context.
|
||||||
|
* \param output pointer for time domain output.
|
||||||
|
* \param pSpec pointer to MDCT spectrum input.
|
||||||
|
* \param spec_scale MDCT spectrum exponents.
|
||||||
|
* \param nSpec amount of contiguos MDCT spectra.
|
||||||
|
* \param pFac pointer to FAC MDCT domain data.
|
||||||
|
* \param fac_scale exponent of FAC data.
|
||||||
|
* \param fac_length length of FAC data.
|
||||||
|
* \param nrSamples room in samples in output buffer.
|
||||||
|
* \param tl MDCT transform length of pSpec.
|
||||||
|
* \param wrs right MDCT window slope.
|
||||||
|
* \param fr right MDCT window slope length.
|
||||||
|
* \param A LP domain filter coefficients.
|
||||||
|
* \param deemph_mem deemphasis filter state.
|
||||||
|
* \param gain gain to be applied to FAC data before overlap add.
|
||||||
|
* \param old_syn_mem Synthesis filter state.
|
||||||
|
* \param isFdFac indicates fac processing from or to FD.
|
||||||
|
* \param pFacData fac data stored for fullband LPD.
|
||||||
|
* \param elFlags element specific parser guidance flags.
|
||||||
|
* \param isFacForFullband indicates that fac is processed for fullband LPD.
|
||||||
|
*/
|
||||||
|
INT CLpd_FAC_Acelp2Mdct(H_MDCT hMdct, FIXP_DBL *output, FIXP_DBL *pSpec,
|
||||||
|
const SHORT spec_scale[], const int nSpec,
|
||||||
|
FIXP_DBL *pFac_data, const int fac_data_e,
|
||||||
|
const INT fac_length, INT nrSamples, const INT tl,
|
||||||
|
const FIXP_WTP *wrs, const INT fr, FIXP_LPC A[16],
|
||||||
|
INT A_exp, CAcelpStaticMem *acelp_mem,
|
||||||
|
const FIXP_DBL gain, const int last_frame_lost,
|
||||||
|
const int isFdFac, const UCHAR last_lpd, const int k,
|
||||||
|
int currAliasingSymmetry);
|
||||||
|
|
||||||
|
#endif /* USACDEC_FAC_H */
|
||||||
1194
libAACdec/src/usacdec_lpc.cpp
Normal file
1194
libAACdec/src/usacdec_lpc.cpp
Normal file
File diff suppressed because it is too large
Load Diff
190
libAACdec/src/usacdec_lpc.h
Normal file
190
libAACdec/src/usacdec_lpc.h
Normal file
@ -0,0 +1,190 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Matthias Hildenbrand, Manuel Jander
|
||||||
|
|
||||||
|
Description: USAC LPC/AVQ decode
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_LPC_H
|
||||||
|
#define USACDEC_LPC_H
|
||||||
|
|
||||||
|
#include "channelinfo.h"
|
||||||
|
#include "common_fix.h"
|
||||||
|
#include "FDK_bitstream.h"
|
||||||
|
#include "usacdec_rom.h"
|
||||||
|
|
||||||
|
#define LSPARG_SCALE 10
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief AVQ (refinement) decode
|
||||||
|
* \param hBs bitstream handle
|
||||||
|
* \param lsfq buffer for AVQ decode output.
|
||||||
|
* \param nk_mode quantization mode.
|
||||||
|
* \param nqn amount of split/interleaved RE8 vectors.
|
||||||
|
* \param total amount of individual data values to decode.
|
||||||
|
* \return 0 on success, -1 on error.
|
||||||
|
*/
|
||||||
|
int CLpc_DecodeAVQ(HANDLE_FDK_BITSTREAM hBs, FIXP_DBL *lsfq, int nk_mode,
|
||||||
|
int nqn, int length);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Read and decode LPC coeficient sets. First stage approximation + AVQ
|
||||||
|
* decode.
|
||||||
|
* \param[in] hBs bitstream handle to read data from.
|
||||||
|
* \param[out] lsp buffer into which the decoded LSP coefficients will be stored
|
||||||
|
* into.
|
||||||
|
* \param[in,out] lpc4_lsf buffer into which the decoded LCP4 LSF coefficients
|
||||||
|
* will be stored into (persistent).
|
||||||
|
* \param[out] lsf_adaptive_mean_cand lsf adaptive mean vector needed for
|
||||||
|
* concealment.
|
||||||
|
* \param[out] pStability array with stability values for the ACELP decoder (and
|
||||||
|
* concealment).
|
||||||
|
* \param[in] mod array which defines modes (ACELP, TCX20|40|80) are used in
|
||||||
|
* the current superframe.
|
||||||
|
* \param[in] first_lpd_flag indicates the presence of LPC0
|
||||||
|
* \param[in] last_lpc_lost indicate that LPC4 of previous frame was lost.
|
||||||
|
* \param[in] last_frame_ok indicate that the last frame was ok.
|
||||||
|
* \return 0 on success, -1 on error.
|
||||||
|
*/
|
||||||
|
int CLpc_Read(HANDLE_FDK_BITSTREAM hBs, FIXP_LPC lsp[][M_LP_FILTER_ORDER],
|
||||||
|
FIXP_LPC lpc4_lsf[M_LP_FILTER_ORDER],
|
||||||
|
FIXP_LPC lsf_adaptive_mean_cand[M_LP_FILTER_ORDER],
|
||||||
|
FIXP_SGL pStability[], UCHAR *mod, int first_lpd_flag,
|
||||||
|
int last_lpc_lost, int last_frame_ok);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief Generate LPC coefficient sets in case frame loss.
|
||||||
|
* \param lsp buffer into which the decoded LSP coefficients will be stored
|
||||||
|
* into.
|
||||||
|
* \param lpc4_lsf buffer into which the decoded LCP4 LSF coefficients will be
|
||||||
|
* stored into (persistent).
|
||||||
|
* \param isf_adaptive_mean
|
||||||
|
* \param first_lpd_flag indicates the previous LSF4 coefficients lpc4_lsf[] are
|
||||||
|
* not valid.
|
||||||
|
*/
|
||||||
|
void CLpc_Conceal(FIXP_LPC lsp[][M_LP_FILTER_ORDER],
|
||||||
|
FIXP_LPC lpc4_lsf[M_LP_FILTER_ORDER],
|
||||||
|
FIXP_LPC isf_adaptive_mean[M_LP_FILTER_ORDER],
|
||||||
|
const int first_lpd_flag);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief apply absolute weighting
|
||||||
|
* \param A weighted LPC coefficient vector output. The first coeffcient is
|
||||||
|
* implicitly 1.0
|
||||||
|
* \param A LPC coefficient vector. The first coeffcient is implicitly 1.0
|
||||||
|
* \param m length of vector A
|
||||||
|
*/
|
||||||
|
/* static */
|
||||||
|
void E_LPC_a_weight(FIXP_LPC *wA, const FIXP_LPC *A, const int m);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief decode TCX/FAC gain. In case of TCX the lg/sqrt(rms) part
|
||||||
|
* must still be applied to obtain the gain value.
|
||||||
|
* \param gain (o) pointer were the gain mantissa is stored into.
|
||||||
|
* \param gain_e (o) pointer were the gain exponent is stored into.
|
||||||
|
* \param gain_code (i) the 7 bit binary word from the bitstream
|
||||||
|
* representing the gain.
|
||||||
|
*/
|
||||||
|
void CLpd_DecodeGain(FIXP_DBL *gain, INT *gain_e, int gain_code);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief convert LSP coefficients into LP domain.
|
||||||
|
*/
|
||||||
|
void E_LPC_f_lsp_a_conversion(FIXP_LPC *lsp, FIXP_LPC *a, INT *a_exp);
|
||||||
|
|
||||||
|
#endif /* USACDEC_LPC_H */
|
||||||
2029
libAACdec/src/usacdec_lpd.cpp
Normal file
2029
libAACdec/src/usacdec_lpd.cpp
Normal file
File diff suppressed because it is too large
Load Diff
198
libAACdec/src/usacdec_lpd.h
Normal file
198
libAACdec/src/usacdec_lpd.h
Normal file
@ -0,0 +1,198 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): Manuel Jander
|
||||||
|
|
||||||
|
Description: USAC Linear Prediction Domain coding
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_LPD_H
|
||||||
|
#define USACDEC_LPD_H
|
||||||
|
|
||||||
|
#include "channelinfo.h"
|
||||||
|
|
||||||
|
#define OPTIMIZE_AVG_PERFORMANCE
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief read a lpd_channel_stream.
|
||||||
|
* \param hBs a bit stream handle, where the lpd_channel_stream is located.
|
||||||
|
* \param pAacDecoderChannelInfo the channel context structure for storing read
|
||||||
|
* data.
|
||||||
|
* \param flags bit stream syntax flags.
|
||||||
|
* \return AAC_DECODER_ERROR error code.
|
||||||
|
*/
|
||||||
|
AAC_DECODER_ERROR CLpdChannelStream_Read(
|
||||||
|
HANDLE_FDK_BITSTREAM hBs, CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
||||||
|
const SamplingRateInfo *pSamplingRateInfo, UINT flags);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief decode one lpd_channel_stream and render the audio output.
|
||||||
|
* \param pAacDecoderChannelInfo struct holding the channel information to be
|
||||||
|
* rendered.
|
||||||
|
* \param pAacDecoderStaticChannelInfo struct holding the persistent channel
|
||||||
|
* information to be rendered.
|
||||||
|
* \param pSamplingRateInfo holds the sampling rate information
|
||||||
|
* \param elFlags holds the internal decoder flags
|
||||||
|
*/
|
||||||
|
void CLpdChannelStream_Decode(
|
||||||
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo,
|
||||||
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, UINT flags);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief generate time domain output signal for LPD channel streams
|
||||||
|
* \param pAacDecoderStaticChannelInfo
|
||||||
|
* \param pAacDecoderChannelInfo
|
||||||
|
* \param pTimeData pointer to output buffer
|
||||||
|
* \param samplesPerFrame amount of output samples
|
||||||
|
* \param pSamplingRateInfo holds the sampling rate information
|
||||||
|
* \param pWorkBuffer1 pointer to work buffer for temporal data
|
||||||
|
*/
|
||||||
|
AAC_DECODER_ERROR CLpd_RenderTimeSignal(
|
||||||
|
CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
|
||||||
|
CAacDecoderChannelInfo *pAacDecoderChannelInfo, FIXP_PCM *pTimeData,
|
||||||
|
INT samplesPerFrame, SamplingRateInfo *pSamplingRateInfo, UINT frameOk,
|
||||||
|
UINT flags, UINT strmFlags);
|
||||||
|
|
||||||
|
static inline INT CLpd_FAC_getLength(int fNotShortBlock, int fac_length_long) {
|
||||||
|
if (fNotShortBlock) {
|
||||||
|
return (fac_length_long);
|
||||||
|
} else {
|
||||||
|
return fac_length_long / 2;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void filtLP(const FIXP_DBL *syn, FIXP_PCM *syn_out, FIXP_DBL *noise,
|
||||||
|
const FIXP_SGL *filt, INT stop, int len);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief perform a low-frequency pitch enhancement on time domain signal
|
||||||
|
* \param[in] syn pointer to time domain input signal
|
||||||
|
* \param[in] synFB pointer to time domain input signal
|
||||||
|
* \param[in] upsampling factor
|
||||||
|
* \param[in] T_sf array with past decoded pitch period values for each subframe
|
||||||
|
* \param[in] non_zero_gain_flags indicates whether pitch gains of past
|
||||||
|
* subframes are zero or not, msb -> [1 BPF_DELAY subfr][7 SYN_DELAY subfr][16
|
||||||
|
* new subfr] <- lsb
|
||||||
|
* \param[in] l_frame length of filtering, must be multiple of L_SUBFR
|
||||||
|
* \param[in] l_next length of allowed look ahead on syn[i], i < l_frame+l_next
|
||||||
|
* \param[out] synth_out pointer to time domain output signal
|
||||||
|
* \param[in,out] mem_bpf pointer to filter memory (L_FILT+L_SUBFR)
|
||||||
|
*/
|
||||||
|
|
||||||
|
void bass_pf_1sf_delay(FIXP_DBL syn[], const INT T_sf[], FIXP_DBL *pit_gain,
|
||||||
|
const int frame_length, const INT l_frame,
|
||||||
|
const INT l_next, FIXP_PCM *synth_out,
|
||||||
|
FIXP_DBL mem_bpf[]);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* \brief random sign generator for FD and TCX noise filling
|
||||||
|
* \param[in,out] seed pointer to random seed
|
||||||
|
* \return if return value is zero use positive sign
|
||||||
|
* \Note: This code is also implemented as a copy in block.cpp, grep for
|
||||||
|
* "UsacRandomSign"
|
||||||
|
*/
|
||||||
|
FDK_INLINE
|
||||||
|
int UsacRandomSign(ULONG *seed) {
|
||||||
|
*seed = (ULONG)((UINT64)(*seed) * 69069 + 5);
|
||||||
|
|
||||||
|
return (int)((*seed) & 0x10000);
|
||||||
|
}
|
||||||
|
|
||||||
|
void CFdp_Reset(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo);
|
||||||
|
|
||||||
|
#endif /* USACDEC_LPD_H */
|
||||||
1504
libAACdec/src/usacdec_rom.cpp
Normal file
1504
libAACdec/src/usacdec_rom.cpp
Normal file
File diff suppressed because it is too large
Load Diff
154
libAACdec/src/usacdec_rom.h
Normal file
154
libAACdec/src/usacdec_rom.h
Normal file
@ -0,0 +1,154 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
|
1. INTRODUCTION
|
||||||
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in redistributions of
|
||||||
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
|
You must retain the complete text of this software license in the documentation
|
||||||
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
|
from this library without prior written permission.
|
||||||
|
|
||||||
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
|
that you changed the software and the date of any change. For modified versions
|
||||||
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
|
4. DISCLAIMER
|
||||||
|
|
||||||
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
|
including but not limited to the implied warranties of merchantability and
|
||||||
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
|
Fraunhofer Institute for Integrated Circuits IIS
|
||||||
|
Attention: Audio and Multimedia Departments - FDK AAC LL
|
||||||
|
Am Wolfsmantel 33
|
||||||
|
91058 Erlangen, Germany
|
||||||
|
|
||||||
|
www.iis.fraunhofer.de/amm
|
||||||
|
amm-info@iis.fraunhofer.de
|
||||||
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
|
/**************************** AAC decoder library ******************************
|
||||||
|
|
||||||
|
Author(s): M. Jander
|
||||||
|
|
||||||
|
Description: re8.h
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
|
#ifndef USACDEC_ROM_H
|
||||||
|
#define USACDEC_ROM_H
|
||||||
|
|
||||||
|
#include "common_fix.h"
|
||||||
|
#include "FDK_lpc.h"
|
||||||
|
|
||||||
|
#include "usacdec_const.h"
|
||||||
|
|
||||||
|
/* RE8 lattice quantiser constants */
|
||||||
|
#define NB_SPHERE 32
|
||||||
|
#define NB_LEADER 37
|
||||||
|
#define NB_LDSIGN 226
|
||||||
|
#define NB_LDQ3 9
|
||||||
|
#define NB_LDQ4 28
|
||||||
|
|
||||||
|
#define LSF_SCALE 13
|
||||||
|
|
||||||
|
/* RE8 lattice quantiser tables */
|
||||||
|
extern const UINT fdk_dec_tab_factorial[8];
|
||||||
|
extern const UCHAR fdk_dec_Ia[NB_LEADER];
|
||||||
|
extern const UCHAR fdk_dec_Ds[NB_LDSIGN];
|
||||||
|
extern const USHORT fdk_dec_Is[NB_LDSIGN];
|
||||||
|
extern const UCHAR fdk_dec_Ns[], fdk_dec_A3[], fdk_dec_A4[];
|
||||||
|
extern const UCHAR fdk_dec_Da[][8];
|
||||||
|
extern const USHORT fdk_dec_I3[], fdk_dec_I4[];
|
||||||
|
|
||||||
|
/* temp float tables for LPC decoding */
|
||||||
|
extern const FIXP_LPC fdk_dec_lsf_init[16];
|
||||||
|
extern const FIXP_LPC fdk_dec_dico_lsf_abs_8b[16 * 256];
|
||||||
|
|
||||||
|
/* ACELP tables */
|
||||||
|
#define SF_QUA_GAIN7B 4
|
||||||
|
extern const FIXP_SGL t_qua_gain7b[128 * 2];
|
||||||
|
extern const FIXP_SGL lsp_interpol_factor[2][NB_SUBFR];
|
||||||
|
|
||||||
|
/* For bass post filter */
|
||||||
|
#define L_FILT 12 /* Delay of up-sampling filter */
|
||||||
|
|
||||||
|
extern const FIXP_SGL fdk_dec_filt_lp[1 + L_FILT];
|
||||||
|
|
||||||
|
extern const FIXP_WTB FacWindowSynth128[128];
|
||||||
|
extern const FIXP_WTB FacWindowZir128[128];
|
||||||
|
extern const FIXP_WTB FacWindowSynth64[64];
|
||||||
|
extern const FIXP_WTB FacWindowZir64[64];
|
||||||
|
extern const FIXP_WTB FacWindowSynth32[32];
|
||||||
|
extern const FIXP_WTB FacWindowZir32[32];
|
||||||
|
extern const FIXP_WTB FacWindowSynth96[96];
|
||||||
|
extern const FIXP_WTB FacWindowZir96[96];
|
||||||
|
extern const FIXP_WTB FacWindowSynth48[48];
|
||||||
|
extern const FIXP_WTB FacWindowZir48[48];
|
||||||
|
|
||||||
|
#endif /* USACDEC_ROM_H */
|
||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,16 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************************************************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial authors: M. Lohwasser, M. Gayer
|
Author(s): M. Lohwasser, M. Gayer
|
||||||
Contents/description:
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
******************************************************************************/
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
\brief Memory layout
|
\brief Memory layout
|
||||||
@ -98,28 +111,28 @@ amm-info@iis.fraunhofer.de
|
|||||||
C_AALLOC_MEM(AACdynamic_RAM, FIXP_DBL, AAC_ENC_DYN_RAM_SIZE / sizeof(FIXP_DBL))
|
C_AALLOC_MEM(AACdynamic_RAM, FIXP_DBL, AAC_ENC_DYN_RAM_SIZE / sizeof(FIXP_DBL))
|
||||||
|
|
||||||
/*
|
/*
|
||||||
Static memory areas, must not be overwritten in other sections of the decoder !
|
Static memory areas, must not be overwritten in other sections of the decoder
|
||||||
|
!
|
||||||
*/
|
*/
|
||||||
|
|
||||||
/*
|
/*
|
||||||
The structure AacEncoder contains all Encoder structures.
|
The structure AacEncoder contains all Encoder structures.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
C_ALLOC_MEM (Ram_aacEnc_AacEncoder, AAC_ENC, 1)
|
C_ALLOC_MEM(Ram_aacEnc_AacEncoder, struct AAC_ENC, 1)
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
The structure PSY_INTERNAl contains all psych configuration and data pointer.
|
The structure PSY_INTERNAl contains all psych configuration and data pointer.
|
||||||
* PsyStatic holds last and current Psych data.
|
* PsyStatic holds last and current Psych data.
|
||||||
* PsyInputBuffer contains time input. Signal is needed at the beginning of Psych.
|
* PsyInputBuffer contains time input. Signal is needed at the beginning of
|
||||||
Memory can be reused after signal is in time domain.
|
Psych. Memory can be reused after signal is in time domain.
|
||||||
* PsyData contains spectral, nrg and threshold information. Necessary data are
|
* PsyData contains spectral, nrg and threshold information. Necessary data
|
||||||
copied into PsyOut, so memory is available after leaving psych.
|
are copied into PsyOut, so memory is available after leaving psych.
|
||||||
* TnsData, ChaosMeasure, PnsData are temporarily necessary, e.g. use memory from
|
* TnsData, ChaosMeasure, PnsData are temporarily necessary, e.g. use memory
|
||||||
PsyInputBuffer.
|
from PsyInputBuffer.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
C_ALLOC_MEM2 (Ram_aacEnc_PsyElement, PSY_ELEMENT, 1, (8))
|
C_ALLOC_MEM2(Ram_aacEnc_PsyElement, PSY_ELEMENT, 1, ((8)))
|
||||||
|
|
||||||
C_ALLOC_MEM(Ram_aacEnc_PsyInternal, PSY_INTERNAL, 1)
|
C_ALLOC_MEM(Ram_aacEnc_PsyInternal, PSY_INTERNAL, 1)
|
||||||
C_ALLOC_MEM2(Ram_aacEnc_PsyStatic, PSY_STATIC, 1, (8))
|
C_ALLOC_MEM2(Ram_aacEnc_PsyStatic, PSY_STATIC, 1, (8))
|
||||||
@ -128,67 +141,68 @@ C_ALLOC_MEM2 (Ram_aacEnc_PsyInputBuffer, INT_PCM, MAX_INPUT_BUFFER_SIZE, (8))
|
|||||||
|
|
||||||
PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic(int n, UCHAR *dynamic_RAM) {
|
PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic(int n, UCHAR *dynamic_RAM) {
|
||||||
FDK_ASSERT(dynamic_RAM != 0);
|
FDK_ASSERT(dynamic_RAM != 0);
|
||||||
return ((PSY_DYNAMIC*) (dynamic_RAM + P_BUF_1 + n*sizeof(PSY_DYNAMIC)));
|
/* The reinterpret_cast is used to suppress a compiler warning. We know that
|
||||||
|
* (dynamic_RAM + P_BUF_1 + n*sizeof(PSY_DYNAMIC)) is sufficiently aligned, so
|
||||||
|
* the cast is safe */
|
||||||
|
return reinterpret_cast<PSY_DYNAMIC *>(reinterpret_cast<void *>(
|
||||||
|
dynamic_RAM + P_BUF_1 + n * sizeof(PSY_DYNAMIC)));
|
||||||
}
|
}
|
||||||
|
|
||||||
C_ALLOC_MEM (Ram_bsOutbuffer, UCHAR, OUTPUTBUFFER_SIZE)
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
The structure PSY_OUT holds all psychoaccoustic data needed
|
The structure PSY_OUT holds all psychoaccoustic data needed
|
||||||
in quantization module
|
in quantization module
|
||||||
*/
|
*/
|
||||||
C_ALLOC_MEM2(Ram_aacEnc_PsyOut, PSY_OUT, 1, (1))
|
C_ALLOC_MEM2(Ram_aacEnc_PsyOut, PSY_OUT, 1, (1))
|
||||||
|
|
||||||
C_ALLOC_MEM2 (Ram_aacEnc_PsyOutElements, PSY_OUT_ELEMENT, 1, (1)*(8))
|
C_ALLOC_MEM2(Ram_aacEnc_PsyOutElements, PSY_OUT_ELEMENT, 1, (1) * ((8)))
|
||||||
C_ALLOC_MEM2(Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL, 1, (1) * (8))
|
C_ALLOC_MEM2(Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL, 1, (1) * (8))
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
The structure QC_STATE contains preinitialized settings and quantizer structures.
|
The structure QC_STATE contains preinitialized settings and quantizer
|
||||||
|
structures.
|
||||||
* AdjustThreshold structure contains element-wise settings.
|
* AdjustThreshold structure contains element-wise settings.
|
||||||
* ElementBits contains elemnt-wise bit consumption settings.
|
* ElementBits contains elemnt-wise bit consumption settings.
|
||||||
* When CRC is active, lookup table is necessary for fast crc calculation.
|
* When CRC is active, lookup table is necessary for fast crc calculation.
|
||||||
* Bitcounter contains buffer to find optimal codebooks and minimal bit consumption.
|
* Bitcounter contains buffer to find optimal codebooks and minimal bit
|
||||||
Values are temporarily, so dynamic memory can be used.
|
consumption. Values are temporarily, so dynamic memory can be used.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
C_ALLOC_MEM(Ram_aacEnc_QCstate, QC_STATE, 1)
|
C_ALLOC_MEM(Ram_aacEnc_QCstate, QC_STATE, 1)
|
||||||
C_ALLOC_MEM(Ram_aacEnc_AdjustThreshold, ADJ_THR_STATE, 1)
|
C_ALLOC_MEM(Ram_aacEnc_AdjustThreshold, ADJ_THR_STATE, 1)
|
||||||
|
|
||||||
C_ALLOC_MEM2 (Ram_aacEnc_AdjThrStateElement, ATS_ELEMENT, 1, (8))
|
C_ALLOC_MEM2(Ram_aacEnc_AdjThrStateElement, ATS_ELEMENT, 1, ((8)))
|
||||||
C_ALLOC_MEM2 (Ram_aacEnc_ElementBits, ELEMENT_BITS, 1, (8))
|
C_ALLOC_MEM2(Ram_aacEnc_ElementBits, ELEMENT_BITS, 1, ((8)))
|
||||||
C_ALLOC_MEM (Ram_aacEnc_BitCntrState, BITCNTR_STATE, 1)
|
C_ALLOC_MEM(Ram_aacEnc_BitCntrState, struct BITCNTR_STATE, 1)
|
||||||
|
|
||||||
INT *GetRam_aacEnc_BitLookUp(int n, UCHAR *dynamic_RAM) {
|
INT *GetRam_aacEnc_BitLookUp(int n, UCHAR *dynamic_RAM) {
|
||||||
FDK_ASSERT(dynamic_RAM != 0);
|
FDK_ASSERT(dynamic_RAM != 0);
|
||||||
return ((INT*) (dynamic_RAM + P_BUF_1));
|
/* The reinterpret_cast is used to suppress a compiler warning. We know that
|
||||||
|
* (dynamic_RAM + P_BUF_1) is sufficiently aligned, so the cast is safe */
|
||||||
|
return reinterpret_cast<INT *>(
|
||||||
|
reinterpret_cast<void *>(dynamic_RAM + P_BUF_1));
|
||||||
}
|
}
|
||||||
INT *GetRam_aacEnc_MergeGainLookUp(int n, UCHAR *dynamic_RAM) {
|
INT *GetRam_aacEnc_MergeGainLookUp(int n, UCHAR *dynamic_RAM) {
|
||||||
FDK_ASSERT(dynamic_RAM != 0);
|
FDK_ASSERT(dynamic_RAM != 0);
|
||||||
return ((INT*) (dynamic_RAM + P_BUF_1 + sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1))));
|
/* The reinterpret_cast is used to suppress a compiler warning. We know that
|
||||||
|
* (dynamic_RAM + P_BUF_1 + sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1)))
|
||||||
|
* is sufficiently aligned, so the cast is safe */
|
||||||
|
return reinterpret_cast<INT *>(reinterpret_cast<void *>(
|
||||||
|
dynamic_RAM + P_BUF_1 +
|
||||||
|
sizeof(INT) * (MAX_SFB_LONG * (CODE_BOOK_ESC_NDX + 1))));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
The structure QC_OUT contains settings and structures holding all necessary information
|
The structure QC_OUT contains settings and structures holding all necessary
|
||||||
needed in bitstreamwriter.
|
information needed in bitstreamwriter.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
C_ALLOC_MEM2(Ram_aacEnc_QCout, QC_OUT, 1, (1))
|
C_ALLOC_MEM2(Ram_aacEnc_QCout, QC_OUT, 1, (1))
|
||||||
C_ALLOC_MEM2 (Ram_aacEnc_QCelement, QC_OUT_ELEMENT, (1), (8))
|
C_ALLOC_MEM2(Ram_aacEnc_QCelement, QC_OUT_ELEMENT, 1, (1) * ((8)))
|
||||||
QC_OUT_CHANNEL *GetRam_aacEnc_QCchannel(int n, UCHAR *dynamic_RAM) {
|
QC_OUT_CHANNEL *GetRam_aacEnc_QCchannel(int n, UCHAR *dynamic_RAM) {
|
||||||
FDK_ASSERT(dynamic_RAM != 0);
|
FDK_ASSERT(dynamic_RAM != 0);
|
||||||
return ((QC_OUT_CHANNEL*) (dynamic_RAM + P_BUF_0 + n*sizeof(QC_OUT_CHANNEL)));
|
/* The reinterpret_cast is used to suppress a compiler warning. We know that
|
||||||
|
* (dynamic_RAM + P_BUF_0 + n*sizeof(QC_OUT_CHANNEL)) is sufficiently aligned,
|
||||||
|
* so the cast is safe */
|
||||||
|
return reinterpret_cast<QC_OUT_CHANNEL *>(reinterpret_cast<void *>(
|
||||||
|
dynamic_RAM + P_BUF_0 + n * sizeof(QC_OUT_CHANNEL)));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************************************************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial authors: M. Lohwasser, M. Gayer
|
Author(s): M. Lohwasser, M. Gayer
|
||||||
Contents/description:
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
@ -94,8 +106,8 @@ amm-info@iis.fraunhofer.de
|
|||||||
\author Markus Lohwasser
|
\author Markus Lohwasser
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#ifndef AAC_ENC_RAM_H
|
#ifndef AACENC_RAM_H
|
||||||
#define AAC_ENC_RAM_H
|
#define AACENC_RAM_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
@ -107,24 +119,27 @@ amm-info@iis.fraunhofer.de
|
|||||||
#include "bit_cnt.h"
|
#include "bit_cnt.h"
|
||||||
#include "psy_const.h"
|
#include "psy_const.h"
|
||||||
|
|
||||||
#define OUTPUTBUFFER_SIZE (8192) /*!< Output buffer size has to be at least 6144 bits per channel (768 bytes). FDK bitbuffer implementation expects buffer of size 2^n. */
|
#define OUTPUTBUFFER_SIZE \
|
||||||
|
(8192) /*!< Output buffer size has to be at least 6144 bits per channel \
|
||||||
|
(768 bytes). FDK bitbuffer implementation expects buffer of \
|
||||||
|
size 2^n. */
|
||||||
|
|
||||||
/*
|
/*
|
||||||
Moved AAC_ENC struct definition from aac_enc.cpp into aacEnc_ram.h to get size and respective
|
Moved AAC_ENC struct definition from aac_enc.cpp into aacEnc_ram.h to get size
|
||||||
static memory in aacEnc_ram.cpp.
|
and respective static memory in aacEnc_ram.cpp. aac_enc.h is the outward
|
||||||
aac_enc.h is the outward visible header file and putting the struct into would cause necessity
|
visible header file and putting the struct into would cause necessity of
|
||||||
of additional visible header files outside library.
|
additional visible header files outside library.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
/* define hBitstream size: max AAC framelength is 6144 bits/channel */
|
/* define hBitstream size: max AAC framelength is 6144 bits/channel */
|
||||||
/*#define BUFFER_BITSTR_SIZE ((6400*(8)/bbWordSize) +((bbWordSize - 1) / bbWordSize))*/
|
/*#define BUFFER_BITSTR_SIZE ((6400*(8)/bbWordSize) +((bbWordSize - 1) /
|
||||||
|
* bbWordSize))*/
|
||||||
|
|
||||||
struct AAC_ENC {
|
struct AAC_ENC {
|
||||||
|
|
||||||
AACENC_CONFIG *config;
|
AACENC_CONFIG *config;
|
||||||
|
|
||||||
INT ancillaryBitsPerFrame; /* ancillary bits per frame calculated from ancillary rate */
|
INT ancillaryBitsPerFrame; /* ancillary bits per frame calculated from
|
||||||
|
ancillary rate */
|
||||||
|
|
||||||
CHANNEL_MAPPING channelMapping;
|
CHANNEL_MAPPING channelMapping;
|
||||||
|
|
||||||
@ -144,45 +159,56 @@ struct AAC_ENC {
|
|||||||
|
|
||||||
FIXP_DBL *dynamic_RAM;
|
FIXP_DBL *dynamic_RAM;
|
||||||
|
|
||||||
|
|
||||||
INT maxChannels; /* used while allocation */
|
INT maxChannels; /* used while allocation */
|
||||||
INT maxElements;
|
INT maxElements;
|
||||||
INT maxFrames;
|
INT maxFrames;
|
||||||
|
|
||||||
AUDIO_OBJECT_TYPE aot; /* AOT to be used while encoding. */
|
AUDIO_OBJECT_TYPE aot; /* AOT to be used while encoding. */
|
||||||
|
|
||||||
};
|
};
|
||||||
|
|
||||||
#define maxSize(a, b) (((a) > (b)) ? (a) : (b))
|
#define maxSize(a, b) (((a) > (b)) ? (a) : (b))
|
||||||
|
|
||||||
#define BIT_LOOK_UP_SIZE ( sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1)) )
|
#define BIT_LOOK_UP_SIZE \
|
||||||
|
(sizeof(INT) * (MAX_SFB_LONG * (CODE_BOOK_ESC_NDX + 1)))
|
||||||
#define MERGE_GAIN_LOOK_UP_SIZE (sizeof(INT) * MAX_SFB_LONG)
|
#define MERGE_GAIN_LOOK_UP_SIZE (sizeof(INT) * MAX_SFB_LONG)
|
||||||
|
|
||||||
|
/* Size of AhFlag buffer in function FDKaacEnc_adaptThresholdsToPe() */
|
||||||
|
#define ADJ_THR_AH_FLAG_SIZE (sizeof(UCHAR) * ((8)) * (2) * MAX_GROUPED_SFB)
|
||||||
|
/* Size of ThrExp buffer in function FDKaacEnc_adaptThresholdsToPe() */
|
||||||
|
#define ADJ_THR_THR_EXP_SIZE (sizeof(FIXP_DBL) * ((8)) * (2) * MAX_GROUPED_SFB)
|
||||||
|
/* Size of sfbNActiveLinesLdData buffer in function FDKaacEnc_correctThresh() */
|
||||||
|
#define ADJ_THR_ACT_LIN_LD_DATA_SIZE \
|
||||||
|
(sizeof(FIXP_DBL) * ((8)) * (2) * MAX_GROUPED_SFB)
|
||||||
|
/* Total amount of dynamic buffer needed in adjust thresholds functionality */
|
||||||
|
#define ADJ_THR_SIZE \
|
||||||
|
(ADJ_THR_AH_FLAG_SIZE + ADJ_THR_THR_EXP_SIZE + ADJ_THR_ACT_LIN_LD_DATA_SIZE)
|
||||||
|
|
||||||
/* Dynamic RAM - Allocation */
|
/* Dynamic RAM - Allocation */
|
||||||
/*
|
/*
|
||||||
++++++++++++++++++++++++++++++++++++++++++++
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||||||
| P_BUF_0 | P_BUF_1 |
|
| P_BUF_0 | P_BUF_1 |
|
||||||
++++++++++++++++++++++++++++++++++++++++++++
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||||||
| QC_OUT_CH | PSY_DYN |
|
| QC_OUT_CH | PSY_DYN |
|
||||||
++++++++++++++++++++++++++++++++++++++++++++
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||||||
| | BitLookUp+MergeGainLookUp |
|
| | BitLookUp+MergeGainLookUp |
|
||||||
++++++++++++++++++++++++++++++++++++++++++++
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||||||
|
| | AH_FLAG | THR_EXP | ACT_LIN_LD_DATA |
|
||||||
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||||||
| | Bitstream output buffer |
|
| | Bitstream output buffer |
|
||||||
++++++++++++++++++++++++++++++++++++++++++++
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#define BUF_SIZE_0 (ALIGN_SIZE(sizeof(QC_OUT_CHANNEL) * (8)))
|
#define BUF_SIZE_0 (ALIGN_SIZE(sizeof(QC_OUT_CHANNEL) * (8)))
|
||||||
#define BUF_SIZE_1 ( ALIGN_SIZE(maxSize(sizeof(PSY_DYNAMIC), \
|
#define BUF_SIZE_1 \
|
||||||
(BIT_LOOK_UP_SIZE+MERGE_GAIN_LOOK_UP_SIZE))) )
|
(ALIGN_SIZE(maxSize(maxSize(sizeof(PSY_DYNAMIC), \
|
||||||
|
(BIT_LOOK_UP_SIZE + MERGE_GAIN_LOOK_UP_SIZE)), \
|
||||||
|
ADJ_THR_SIZE)))
|
||||||
|
|
||||||
#define P_BUF_0 (0)
|
#define P_BUF_0 (0)
|
||||||
#define P_BUF_1 (P_BUF_0 + BUF_SIZE_0)
|
#define P_BUF_1 (P_BUF_0 + BUF_SIZE_0)
|
||||||
|
|
||||||
#define AAC_ENC_DYN_RAM_SIZE (BUF_SIZE_0 + BUF_SIZE_1)
|
#define AAC_ENC_DYN_RAM_SIZE (BUF_SIZE_0 + BUF_SIZE_1)
|
||||||
|
|
||||||
|
|
||||||
H_ALLOC_MEM(AACdynamic_RAM, FIXP_DBL)
|
H_ALLOC_MEM(AACdynamic_RAM, FIXP_DBL)
|
||||||
/*
|
/*
|
||||||
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
||||||
@ -200,7 +226,6 @@ END - Dynamic RAM - Allocation */
|
|||||||
H_ALLOC_MEM(Ram_aacEnc_PsyInputBuffer, INT_PCM)
|
H_ALLOC_MEM(Ram_aacEnc_PsyInputBuffer, INT_PCM)
|
||||||
|
|
||||||
PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic(int n, UCHAR *dynamic_RAM);
|
PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic(int n, UCHAR *dynamic_RAM);
|
||||||
H_ALLOC_MEM (Ram_bsOutbuffer, UCHAR)
|
|
||||||
|
|
||||||
H_ALLOC_MEM(Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL)
|
H_ALLOC_MEM(Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL)
|
||||||
|
|
||||||
@ -221,6 +246,4 @@ END - Dynamic RAM - Allocation */
|
|||||||
H_ALLOC_MEM(Ram_aacEnc_QCout, QC_OUT)
|
H_ALLOC_MEM(Ram_aacEnc_QCout, QC_OUT)
|
||||||
H_ALLOC_MEM(Ram_aacEnc_QCelement, QC_OUT_ELEMENT)
|
H_ALLOC_MEM(Ram_aacEnc_QCelement, QC_OUT_ELEMENT)
|
||||||
|
|
||||||
|
#endif /* #ifndef AACENC_RAM_H */
|
||||||
#endif /* #ifndef AAC_ENC_RAM_H */
|
|
||||||
|
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,28 +90,31 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************************************************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial authors: M. Lohwasser, M. Gayer
|
Author(s): M. Lohwasser, M. Gayer
|
||||||
Contents/description:
|
|
||||||
|
Description:
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
******************************************************************************/
|
|
||||||
/*!
|
/*!
|
||||||
\file
|
\file
|
||||||
\brief Memory layout
|
\brief Memory layout
|
||||||
\author Markus Lohwasser
|
\author Markus Lohwasser
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#ifndef AAC_ENC_ROM_H
|
#ifndef AACENC_ROM_H
|
||||||
#define AAC_ENC_ROM_H
|
#define AACENC_ROM_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#include "psy_const.h"
|
#include "psy_const.h"
|
||||||
#include "psy_configuration.h"
|
#include "psy_configuration.h"
|
||||||
#include "FDK_tools_rom.h"
|
#include "FDK_tools_rom.h"
|
||||||
|
#include "FDK_lpc.h"
|
||||||
|
|
||||||
/*
|
/*
|
||||||
Huffman Tables
|
Huffman Tables
|
||||||
@ -147,13 +161,11 @@ extern const FIXP_DBL FDKaacEnc_mTab_4_3Elc[512];
|
|||||||
extern const FIXP_DBL FDKaacEnc_specExpMantTableCombElc[4][14];
|
extern const FIXP_DBL FDKaacEnc_specExpMantTableCombElc[4][14];
|
||||||
extern const UCHAR FDKaacEnc_specExpTableComb[4][14];
|
extern const UCHAR FDKaacEnc_specExpTableComb[4][14];
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
table to count used number of bits
|
table to count used number of bits
|
||||||
*/
|
*/
|
||||||
extern const SHORT FDKaacEnc_sideInfoTabLong[MAX_SFB_LONG + 1];
|
extern const SHORT FDKaacEnc_sideInfoTabLong[];
|
||||||
extern const SHORT FDKaacEnc_sideInfoTabShort[MAX_SFB_SHORT + 1];
|
extern const SHORT FDKaacEnc_sideInfoTabShort[];
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
Psy Configuration constants
|
Psy Configuration constants
|
||||||
@ -183,14 +195,13 @@ extern const SFB_PARAM_SHORT p_FDKaacEnc_88200_short_128;
|
|||||||
extern const SFB_PARAM_LONG p_FDKaacEnc_96000_long_1024;
|
extern const SFB_PARAM_LONG p_FDKaacEnc_96000_long_1024;
|
||||||
extern const SFB_PARAM_SHORT p_FDKaacEnc_96000_short_128;
|
extern const SFB_PARAM_SHORT p_FDKaacEnc_96000_short_128;
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
TNS filter coefficients
|
TNS filter coefficients
|
||||||
*/
|
*/
|
||||||
extern const FIXP_DBL FDKaacEnc_tnsEncCoeff3[8];
|
extern const FIXP_LPC FDKaacEnc_tnsEncCoeff3[8];
|
||||||
extern const FIXP_DBL FDKaacEnc_tnsCoeff3Borders[8];
|
extern const FIXP_LPC FDKaacEnc_tnsCoeff3Borders[8];
|
||||||
extern const FIXP_DBL FDKaacEnc_tnsEncCoeff4[16];
|
extern const FIXP_LPC FDKaacEnc_tnsEncCoeff4[16];
|
||||||
extern const FIXP_DBL FDKaacEnc_tnsCoeff4Borders[16];
|
extern const FIXP_LPC FDKaacEnc_tnsCoeff4Borders[16];
|
||||||
|
|
||||||
#define WTC0 WTC
|
#define WTC0 WTC
|
||||||
#define WTC1 WTC
|
#define WTC1 WTC
|
||||||
@ -198,6 +209,9 @@ extern const FIXP_DBL FDKaacEnc_tnsCoeff4Borders[16];
|
|||||||
|
|
||||||
extern const FIXP_WTB ELDAnalysis512[1536];
|
extern const FIXP_WTB ELDAnalysis512[1536];
|
||||||
extern const FIXP_WTB ELDAnalysis480[1440];
|
extern const FIXP_WTB ELDAnalysis480[1440];
|
||||||
|
extern const FIXP_WTB ELDAnalysis256[768];
|
||||||
|
extern const FIXP_WTB ELDAnalysis240[720];
|
||||||
|
extern const FIXP_WTB ELDAnalysis128[384];
|
||||||
|
extern const FIXP_WTB ELDAnalysis120[360];
|
||||||
|
|
||||||
|
#endif /* #ifndef AACENC_ROM_H */
|
||||||
#endif /* #ifndef AAC_ENC_ROM_H */
|
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,17 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/************************* Fast MPEG AAC Audio Encoder **********************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Schug / A. Groeschel
|
Author(s): M. Schug / A. Groeschel
|
||||||
contents/description: fast aac coder interface library functions
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: fast aac coder interface library functions
|
||||||
|
|
||||||
#ifndef _aacenc_h_
|
*******************************************************************************/
|
||||||
#define _aacenc_h_
|
|
||||||
|
#ifndef AACENC_H
|
||||||
|
#define AACENC_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
#include "FDK_audio.h"
|
#include "FDK_audio.h"
|
||||||
@ -98,10 +110,7 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
#include "sbr_encoder.h"
|
#include "sbr_encoder.h"
|
||||||
|
|
||||||
#define BITRES_MAX_LD 4000
|
#define MIN_BUFSIZE_PER_EFF_CHAN 6144
|
||||||
#define BITRES_MIN_LD 500
|
|
||||||
#define BITRATE_MAX_LD 70000 /* Max assumed bitrate for bitres calculation */
|
|
||||||
#define BITRATE_MIN_LD 12000 /* Min assumed bitrate for bitres calculation */
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
extern "C" {
|
extern "C" {
|
||||||
@ -113,25 +122,41 @@ extern "C" {
|
|||||||
typedef enum {
|
typedef enum {
|
||||||
AAC_ENC_OK = 0x0000, /*!< All fine. */
|
AAC_ENC_OK = 0x0000, /*!< All fine. */
|
||||||
|
|
||||||
AAC_ENC_UNKNOWN = 0x0002, /*!< Error condition is of unknown reason, or from another module. */
|
AAC_ENC_UNKNOWN = 0x0002, /*!< Error condition is of unknown reason, or from
|
||||||
|
another module. */
|
||||||
|
|
||||||
/* initialization errors */
|
/* initialization errors */
|
||||||
aac_enc_init_error_start = 0x2000,
|
aac_enc_init_error_start = 0x2000,
|
||||||
AAC_ENC_INVALID_HANDLE = 0x2020, /*!< The handle passed to the function call was invalid (probably NULL). */
|
AAC_ENC_INVALID_HANDLE = 0x2020, /*!< The handle passed to the function call
|
||||||
AAC_ENC_INVALID_FRAME_LENGTH = 0x2080, /*!< Invalid frame length. */
|
was invalid (probably NULL). */
|
||||||
AAC_ENC_INVALID_N_CHANNELS = 0x20e0, /*!< Invalid amount of audio input channels. */
|
AAC_ENC_INVALID_FRAME_LENGTH =
|
||||||
|
0x2080, /*!< Invalid frame length (must be 1024 or 960). */
|
||||||
|
AAC_ENC_INVALID_N_CHANNELS =
|
||||||
|
0x20e0, /*!< Invalid amount of audio input channels. */
|
||||||
AAC_ENC_INVALID_SFB_TABLE = 0x2140, /*!< Internal encoder error. */
|
AAC_ENC_INVALID_SFB_TABLE = 0x2140, /*!< Internal encoder error. */
|
||||||
|
|
||||||
AAC_ENC_UNSUPPORTED_AOT = 0x3000, /*!< The Audio Object Type (AOT) is not supported. */
|
AAC_ENC_UNSUPPORTED_AOT =
|
||||||
AAC_ENC_UNSUPPORTED_BITRATE = 0x3020, /*!< The chosen bitrate is not supported. */
|
0x3000, /*!< The Audio Object Type (AOT) is not supported. */
|
||||||
AAC_ENC_UNSUPPORTED_BITRATE_MODE = 0x3028, /*!< Unsupported bit rate mode (CBR or VBR). */
|
AAC_ENC_UNSUPPORTED_FILTERBANK =
|
||||||
AAC_ENC_UNSUPPORTED_ANC_BITRATE = 0x3040, /*!< Unsupported ancillay bitrate. */
|
0x3010, /*!< Filterbank type is not supported. */
|
||||||
|
AAC_ENC_UNSUPPORTED_BITRATE =
|
||||||
|
0x3020, /*!< The chosen bitrate is not supported. */
|
||||||
|
AAC_ENC_UNSUPPORTED_BITRATE_MODE =
|
||||||
|
0x3028, /*!< Unsupported bit rate mode (CBR or VBR). */
|
||||||
|
AAC_ENC_UNSUPPORTED_ANC_BITRATE =
|
||||||
|
0x3040, /*!< Unsupported ancillay bitrate. */
|
||||||
AAC_ENC_UNSUPPORTED_ANC_MODE = 0x3060,
|
AAC_ENC_UNSUPPORTED_ANC_MODE = 0x3060,
|
||||||
AAC_ENC_UNSUPPORTED_TRANSPORT_TYPE = 0x3080, /*!< The bitstream format is not supported. */
|
AAC_ENC_UNSUPPORTED_TRANSPORT_TYPE =
|
||||||
AAC_ENC_UNSUPPORTED_ER_FORMAT = 0x30a0, /*!< The error resilience tool format is not supported. */
|
0x3080, /*!< The bitstream format is not supported. */
|
||||||
AAC_ENC_UNSUPPORTED_EPCONFIG = 0x30c0, /*!< The error protection format is not supported. */
|
AAC_ENC_UNSUPPORTED_ER_FORMAT =
|
||||||
AAC_ENC_UNSUPPORTED_CHANNELCONFIG = 0x30e0, /*!< The channel configuration (either number or arrangement) is not supported. */
|
0x30a0, /*!< The error resilience tool format is not supported. */
|
||||||
AAC_ENC_UNSUPPORTED_SAMPLINGRATE = 0x3100, /*!< Sample rate of audio input is not supported. */
|
AAC_ENC_UNSUPPORTED_EPCONFIG =
|
||||||
|
0x30c0, /*!< The error protection format is not supported. */
|
||||||
|
AAC_ENC_UNSUPPORTED_CHANNELCONFIG =
|
||||||
|
0x30e0, /*!< The channel configuration (either number or arrangement) is
|
||||||
|
not supported. */
|
||||||
|
AAC_ENC_UNSUPPORTED_SAMPLINGRATE =
|
||||||
|
0x3100, /*!< Sample rate of audio input is not supported. */
|
||||||
AAC_ENC_NO_MEMORY = 0x3120, /*!< Could not allocate memory. */
|
AAC_ENC_NO_MEMORY = 0x3120, /*!< Could not allocate memory. */
|
||||||
AAC_ENC_PE_INIT_TABLE_NOT_FOUND = 0x3140, /*!< Internal encoder error. */
|
AAC_ENC_PE_INIT_TABLE_NOT_FOUND = 0x3140, /*!< Internal encoder error. */
|
||||||
|
|
||||||
@ -140,7 +165,8 @@ typedef enum {
|
|||||||
/* encode errors */
|
/* encode errors */
|
||||||
aac_enc_error_start = 0x4000,
|
aac_enc_error_start = 0x4000,
|
||||||
AAC_ENC_QUANT_ERROR = 0x4020, /*!< Too many bits used in quantization. */
|
AAC_ENC_QUANT_ERROR = 0x4020, /*!< Too many bits used in quantization. */
|
||||||
AAC_ENC_WRITTEN_BITS_ERROR = 0x4040, /*!< Unexpected number of written bits, differs to
|
AAC_ENC_WRITTEN_BITS_ERROR =
|
||||||
|
0x4040, /*!< Unexpected number of written bits, differs to
|
||||||
calculated number of bits. */
|
calculated number of bits. */
|
||||||
AAC_ENC_PNS_TABLE_ERROR = 0x4060, /*!< PNS level out of range. */
|
AAC_ENC_PNS_TABLE_ERROR = 0x4060, /*!< PNS level out of range. */
|
||||||
AAC_ENC_GLOBAL_GAIN_TOO_HIGH = 0x4080, /*!< Internal quantizer error. */
|
AAC_ENC_GLOBAL_GAIN_TOO_HIGH = 0x4080, /*!< Internal quantizer error. */
|
||||||
@ -159,26 +185,29 @@ typedef enum {
|
|||||||
|
|
||||||
#define ANC_DATA_BUFFERSIZE 1024 /* ancBuffer size */
|
#define ANC_DATA_BUFFERSIZE 1024 /* ancBuffer size */
|
||||||
|
|
||||||
#define MAX_TOTAL_EXT_PAYLOADS (((8) * (1)) + (2+2))
|
#define MAX_TOTAL_EXT_PAYLOADS ((((8)) * (1)) + (2 + 2))
|
||||||
|
|
||||||
|
|
||||||
typedef enum {
|
typedef enum {
|
||||||
AACENC_BR_MODE_INVALID = -1, /*!< Invalid bitrate mode. */
|
AACENC_BR_MODE_INVALID = -1, /*!< Invalid bitrate mode. */
|
||||||
AACENC_BR_MODE_CBR = 0, /*!< Constant bitrate mode. */
|
AACENC_BR_MODE_CBR = 0, /*!< Constant bitrate mode. */
|
||||||
AACENC_BR_MODE_VBR_1 = 1, /*!< Variable bitrate mode, about 32 kbps/channel. */
|
AACENC_BR_MODE_VBR_1 = 1, /*!< Variable bitrate mode, very low bitrate. */
|
||||||
AACENC_BR_MODE_VBR_2 = 2, /*!< Variable bitrate mode, about 40 kbps/channel. */
|
AACENC_BR_MODE_VBR_2 = 2, /*!< Variable bitrate mode, low bitrate. */
|
||||||
AACENC_BR_MODE_VBR_3 = 3, /*!< Variable bitrate mode, about 48-56 kbps/channel. */
|
AACENC_BR_MODE_VBR_3 = 3, /*!< Variable bitrate mode, medium bitrate. */
|
||||||
AACENC_BR_MODE_VBR_4 = 4, /*!< Variable bitrate mode, about 64 kbps/channel. */
|
AACENC_BR_MODE_VBR_4 = 4, /*!< Variable bitrate mode, high bitrate. */
|
||||||
AACENC_BR_MODE_VBR_5 = 5, /*!< Variable bitrate mode, about 80-96 kbps/channel. */
|
AACENC_BR_MODE_VBR_5 = 5, /*!< Variable bitrate mode, very high bitrate. */
|
||||||
AACENC_BR_MODE_FF = 6, /*!< Fixed frame mode. */
|
AACENC_BR_MODE_FF = 6, /*!< Fixed frame mode. */
|
||||||
AACENC_BR_MODE_SFR = 7 /*!< Superframe mode. */
|
AACENC_BR_MODE_SFR = 7 /*!< Superframe mode. */
|
||||||
|
|
||||||
} AACENC_BITRATE_MODE;
|
} AACENC_BITRATE_MODE;
|
||||||
|
|
||||||
|
#define AACENC_BR_MODE_IS_VBR(brMode) ((brMode >= 1) && (brMode <= 5))
|
||||||
|
|
||||||
typedef enum {
|
typedef enum {
|
||||||
|
|
||||||
CH_ORDER_MPEG = 0, /*!< MPEG channel ordering (e. g. 5.1: C, L, R, SL, SR, LFE) */
|
CH_ORDER_MPEG =
|
||||||
CH_ORDER_WAV /*!< WAV fileformat channel ordering (e. g. 5.1: L, R, C, LFE, SL, SR) */
|
0, /*!< MPEG channel ordering (e. g. 5.1: C, L, R, SL, SR, LFE) */
|
||||||
|
CH_ORDER_WAV /*!< WAV fileformat channel ordering (e. g. 5.1: L, R, C, LFE,
|
||||||
|
SL, SR) */
|
||||||
|
|
||||||
} CHANNEL_ORDER;
|
} CHANNEL_ORDER;
|
||||||
|
|
||||||
@ -187,15 +216,17 @@ typedef enum {
|
|||||||
struct AACENC_CONFIG {
|
struct AACENC_CONFIG {
|
||||||
INT sampleRate; /* encoder sample rate */
|
INT sampleRate; /* encoder sample rate */
|
||||||
INT bitRate; /* encoder bit rate in bits/sec */
|
INT bitRate; /* encoder bit rate in bits/sec */
|
||||||
INT ancDataBitRate; /* additional bits consumed by anc data or sbr have to be consiedered while configuration */
|
INT ancDataBitRate; /* additional bits consumed by anc data or sbr have to be
|
||||||
|
consiedered while configuration */
|
||||||
|
|
||||||
INT nSubFrames; /* number of frames in super frame (not ADTS/LATM subframes !) */
|
INT nSubFrames; /* number of frames in super frame (not ADTS/LATM subframes !)
|
||||||
|
*/
|
||||||
AUDIO_OBJECT_TYPE audioObjectType; /* Audio Object Type */
|
AUDIO_OBJECT_TYPE audioObjectType; /* Audio Object Type */
|
||||||
|
|
||||||
INT averageBits; /* encoder bit rate in bits/superframe */
|
INT averageBits; /* encoder bit rate in bits/superframe */
|
||||||
INT bitrateMode; /* encoder bitrate mode (CBR/VBR) */
|
AACENC_BITRATE_MODE bitrateMode; /* encoder bitrate mode (CBR/VBR) */
|
||||||
INT nChannels; /* number of channels to process */
|
INT nChannels; /* number of channels to process */
|
||||||
CHANNEL_ORDER channelOrder; /* Input Channel ordering scheme. */
|
CHANNEL_ORDER channelOrder; /* input Channel ordering scheme. */
|
||||||
INT bandWidth; /* targeted audio bandwidth in Hz */
|
INT bandWidth; /* targeted audio bandwidth in Hz */
|
||||||
CHANNEL_MODE channelMode; /* encoder channel mode configuration */
|
CHANNEL_MODE channelMode; /* encoder channel mode configuration */
|
||||||
INT framelength; /* used frame size */
|
INT framelength; /* used frame size */
|
||||||
@ -203,11 +234,11 @@ struct AACENC_CONFIG {
|
|||||||
UINT syntaxFlags; /* bitstreams syntax configuration */
|
UINT syntaxFlags; /* bitstreams syntax configuration */
|
||||||
SCHAR epConfig; /* error protection configuration */
|
SCHAR epConfig; /* error protection configuration */
|
||||||
|
|
||||||
INT anc_Rate; /* ancillary rate, 0 (disabled), -1 (default) else desired rate */
|
INT anc_Rate; /* ancillary rate, 0 (disabled), -1 (default) else desired rate
|
||||||
|
*/
|
||||||
UINT maxAncBytesPerAU;
|
UINT maxAncBytesPerAU;
|
||||||
INT minBitsPerFrame; /* minimum number of bits in AU */
|
INT minBitsPerFrame; /* minimum number of bits in AU */
|
||||||
INT maxBitsPerFrame; /* maximum number of bits in AU */
|
INT maxBitsPerFrame; /* maximum number of bits in AU */
|
||||||
INT bitreservoir; /* size of bitreservoir */
|
|
||||||
|
|
||||||
INT audioMuxVersion; /* audio mux version in loas/latm transport format */
|
INT audioMuxVersion; /* audio mux version in loas/latm transport format */
|
||||||
|
|
||||||
@ -216,21 +247,26 @@ struct AACENC_CONFIG {
|
|||||||
UCHAR useTns; /* flag: use temporal noise shaping */
|
UCHAR useTns; /* flag: use temporal noise shaping */
|
||||||
UCHAR usePns; /* flag: use perceptual noise substitution */
|
UCHAR usePns; /* flag: use perceptual noise substitution */
|
||||||
UCHAR useIS; /* flag: use intensity coding */
|
UCHAR useIS; /* flag: use intensity coding */
|
||||||
|
UCHAR useMS; /* flag: use ms stereo tool */
|
||||||
|
|
||||||
UCHAR useRequant; /* flag: use afterburner */
|
UCHAR useRequant; /* flag: use afterburner */
|
||||||
|
|
||||||
|
UINT downscaleFactor;
|
||||||
};
|
};
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
UCHAR *pData; /* pointer to extension payload data */
|
UCHAR *pData; /* pointer to extension payload data */
|
||||||
UINT dataSize; /* extension payload data size in bits */
|
UINT dataSize; /* extension payload data size in bits */
|
||||||
EXT_PAYLOAD_TYPE dataType; /* extension payload data type */
|
EXT_PAYLOAD_TYPE dataType; /* extension payload data type */
|
||||||
INT associatedChElement; /* number of the channel element the data is assigned to */
|
INT associatedChElement; /* number of the channel element the data is assigned
|
||||||
|
to */
|
||||||
} AACENC_EXT_PAYLOAD;
|
} AACENC_EXT_PAYLOAD;
|
||||||
|
|
||||||
typedef struct AAC_ENC *HANDLE_AAC_ENC;
|
typedef struct AAC_ENC *HANDLE_AAC_ENC;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Calculate framesize in bits for given bit rate, frame length and sampling rate.
|
* \brief Calculate framesize in bits for given bit rate, frame length and
|
||||||
|
* sampling rate.
|
||||||
*
|
*
|
||||||
* \param bitRate Ttarget bitrate in bits per second.
|
* \param bitRate Ttarget bitrate in bits per second.
|
||||||
* \param frameLength Number of audio samples in one frame.
|
* \param frameLength Number of audio samples in one frame.
|
||||||
@ -238,53 +274,52 @@ typedef struct AAC_ENC *HANDLE_AAC_ENC;
|
|||||||
*
|
*
|
||||||
* \return Framesize in bits per frame.
|
* \return Framesize in bits per frame.
|
||||||
*/
|
*/
|
||||||
INT FDKaacEnc_CalcBitsPerFrame(
|
INT FDKaacEnc_CalcBitsPerFrame(const INT bitRate, const INT frameLength,
|
||||||
const INT bitRate,
|
const INT samplingRate);
|
||||||
const INT frameLength,
|
|
||||||
const INT samplingRate
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Calculate bitrate in bits per second for given framesize, frame length and sampling rate.
|
* \brief Calculate bitrate in bits per second for given framesize, frame length
|
||||||
|
* and sampling rate.
|
||||||
*
|
*
|
||||||
* \param bitsPerFrame Framesize in bits per frame.
|
* \param bitsPerFrame Framesize in bits per frame
|
||||||
* \param frameLength Number of audio samples in one frame.
|
* \param frameLength Number of audio samples in one frame.
|
||||||
* \param samplingRate Sampling rate in Hz.
|
* \param samplingRate Sampling rate in Hz.
|
||||||
*
|
*
|
||||||
* \return Bitrate in bits per second.
|
* \return Bitrate in bits per second.
|
||||||
*/
|
*/
|
||||||
INT FDKaacEnc_CalcBitrate(
|
INT FDKaacEnc_CalcBitrate(const INT bitsPerFrame, const INT frameLength,
|
||||||
const INT bitsPerFrame,
|
const INT samplingRate);
|
||||||
const INT frameLength,
|
|
||||||
const INT samplingRate
|
|
||||||
);
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Limit given bit rate to a valid value
|
* \brief Limit given bit rate to a valid value
|
||||||
* \param hTpEnc transport encoder handle
|
* \param hTpEnc transport encoder handle
|
||||||
|
* \param aot audio object type
|
||||||
* \param coreSamplingRate the sample rate to be used for the AAC encoder
|
* \param coreSamplingRate the sample rate to be used for the AAC encoder
|
||||||
* \param frameLength the frameLength to be used for the AAC encoder
|
* \param frameLength the frameLength to be used for the AAC encoder
|
||||||
* \param nChannels number of total channels
|
* \param nChannels number of total channels
|
||||||
* \param nChannelsEff number of effective channels
|
* \param nChannelsEff number of effective channels
|
||||||
* \param bitRate the initial bit rate value for which the closest valid bit rate value is searched for
|
* \param bitRate the initial bit rate value for which the closest valid bit
|
||||||
* \param averageBits average bits per frame for fixed framing. Set to -1 if not available.
|
* rate value is searched for
|
||||||
|
* \param averageBits average bits per frame for fixed framing. Set to -1 if not
|
||||||
|
* available.
|
||||||
* \param optional pointer where the current bits per frame are stored into.
|
* \param optional pointer where the current bits per frame are stored into.
|
||||||
* \param bitrateMode the current bit rate mode
|
* \param bitrateMode the current bit rate mode
|
||||||
* \param nSubFrames number of sub frames for super framing (not transport frames).
|
* \param nSubFrames number of sub frames for super framing (not transport
|
||||||
|
* frames).
|
||||||
* \return a valid bit rate value as close as possible or identical to bitRate
|
* \return a valid bit rate value as close as possible or identical to bitRate
|
||||||
*/
|
*/
|
||||||
INT FDKaacEnc_LimitBitrate(
|
INT FDKaacEnc_LimitBitrate(HANDLE_TRANSPORTENC hTpEnc, AUDIO_OBJECT_TYPE aot,
|
||||||
HANDLE_TRANSPORTENC hTpEnc,
|
INT coreSamplingRate, INT frameLength, INT nChannels,
|
||||||
INT coreSamplingRate,
|
INT nChannelsEff, INT bitRate, INT averageBits,
|
||||||
INT frameLength,
|
|
||||||
INT nChannels,
|
|
||||||
INT nChannelsEff,
|
|
||||||
INT bitRate,
|
|
||||||
INT averageBits,
|
|
||||||
INT *pAverageBitsPerFrame,
|
INT *pAverageBitsPerFrame,
|
||||||
INT bitrateMode,
|
AACENC_BITRATE_MODE bitrateMode, INT nSubFrames);
|
||||||
INT nSubFrames
|
|
||||||
);
|
/**
|
||||||
|
* \brief Get current state of the bit reservoir
|
||||||
|
* \param hAacEncoder encoder handle
|
||||||
|
* \return bit reservoir state in bits
|
||||||
|
*/
|
||||||
|
INT FDKaacEnc_GetBitReservoirState(const HANDLE_AAC_ENC hAacEncoder);
|
||||||
|
|
||||||
/*-----------------------------------------------------------------------------
|
/*-----------------------------------------------------------------------------
|
||||||
|
|
||||||
@ -295,8 +330,8 @@ INT FDKaacEnc_LimitBitrate(
|
|||||||
returns: vbr bitrate
|
returns: vbr bitrate
|
||||||
|
|
||||||
------------------------------------------------------------------------------*/
|
------------------------------------------------------------------------------*/
|
||||||
INT FDKaacEnc_GetVBRBitrate(INT bitrateMode, CHANNEL_MODE channelMode);
|
INT FDKaacEnc_GetVBRBitrate(AACENC_BITRATE_MODE bitrateMode,
|
||||||
|
CHANNEL_MODE channelMode);
|
||||||
|
|
||||||
/*-----------------------------------------------------------------------------
|
/*-----------------------------------------------------------------------------
|
||||||
|
|
||||||
@ -314,17 +349,18 @@ void FDKaacEnc_AacInitDefaultConfig(AACENC_CONFIG *config);
|
|||||||
returns: 0 if success
|
returns: 0 if success
|
||||||
|
|
||||||
---------------------------------------------------------------------------*/
|
---------------------------------------------------------------------------*/
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_Open(HANDLE_AAC_ENC *phAacEnc, /* pointer to an encoder handle, initialized on return */
|
AAC_ENCODER_ERROR FDKaacEnc_Open(
|
||||||
|
HANDLE_AAC_ENC
|
||||||
|
*phAacEnc, /* pointer to an encoder handle, initialized on return */
|
||||||
const INT nElements, /* number of maximal elements in instance to support */
|
const INT nElements, /* number of maximal elements in instance to support */
|
||||||
const INT nChannels, /* number of maximal channels in instance to support */
|
const INT nChannels, /* number of maximal channels in instance to support */
|
||||||
const INT nSubFrames); /* support superframing in instance */
|
const INT nSubFrames); /* support superframing in instance */
|
||||||
|
|
||||||
|
AAC_ENCODER_ERROR FDKaacEnc_Initialize(
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_Initialize(HANDLE_AAC_ENC hAacEncoder, /* pointer to an encoder handle, initialized on return */
|
HANDLE_AAC_ENC
|
||||||
|
hAacEncoder, /* pointer to an encoder handle, initialized on return */
|
||||||
AACENC_CONFIG *config, /* pre-initialized config struct */
|
AACENC_CONFIG *config, /* pre-initialized config struct */
|
||||||
HANDLE_TRANSPORTENC hTpEnc,
|
HANDLE_TRANSPORTENC hTpEnc, ULONG initFlags);
|
||||||
ULONG initFlags);
|
|
||||||
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------
|
||||||
|
|
||||||
@ -334,12 +370,11 @@ AAC_ENCODER_ERROR FDKaacEnc_Initialize(HANDLE_AAC_ENC hAacEncoder, /* poin
|
|||||||
|
|
||||||
---------------------------------------------------------------------------*/
|
---------------------------------------------------------------------------*/
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_EncodeFrame( HANDLE_AAC_ENC hAacEnc, /* encoder handle */
|
AAC_ENCODER_ERROR FDKaacEnc_EncodeFrame(
|
||||||
HANDLE_TRANSPORTENC hTpEnc,
|
HANDLE_AAC_ENC hAacEnc, /* encoder handle */
|
||||||
INT_PCM* inputBuffer,
|
HANDLE_TRANSPORTENC hTpEnc, INT_PCM *inputBuffer,
|
||||||
INT* numOutBytes,
|
const UINT inputBufferBufSize, INT *numOutBytes,
|
||||||
AACENC_EXT_PAYLOAD extPayload[MAX_TOTAL_EXT_PAYLOADS]
|
AACENC_EXT_PAYLOAD extPayload[MAX_TOTAL_EXT_PAYLOADS]);
|
||||||
);
|
|
||||||
|
|
||||||
/*---------------------------------------------------------------------------
|
/*---------------------------------------------------------------------------
|
||||||
|
|
||||||
@ -355,5 +390,4 @@ void FDKaacEnc_Close( HANDLE_AAC_ENC* phAacEnc); /* encoder handle */
|
|||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
#endif /* _aacenc_h_ */
|
#endif /* AACENC_H */
|
||||||
|
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,43 +90,37 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Lohwasser
|
Author(s): M. Lohwasser
|
||||||
contents/description: pns.c
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: pns.c
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "aacenc_pns.h"
|
#include "aacenc_pns.h"
|
||||||
|
|
||||||
#include "psy_data.h"
|
#include "psy_data.h"
|
||||||
#include "pnsparam.h"
|
#include "pnsparam.h"
|
||||||
#include "noisedet.h"
|
#include "noisedet.h"
|
||||||
#include "bit_cnt.h"
|
#include "bit_cnt.h"
|
||||||
#include "interface.h"
|
#include "interface.h"
|
||||||
|
|
||||||
|
|
||||||
/* minCorrelationEnergy = (1.0e-10f)^2 ~ 2^-67 = 2^-47 * 2^-20 */
|
/* minCorrelationEnergy = (1.0e-10f)^2 ~ 2^-67 = 2^-47 * 2^-20 */
|
||||||
static const FIXP_DBL minCorrelationEnergy = FL2FXCONST_DBL(0.0); /* FL2FXCONST_DBL((float)FDKpow(2.0,-47)); */
|
static const FIXP_DBL minCorrelationEnergy =
|
||||||
|
FL2FXCONST_DBL(0.0); /* FL2FXCONST_DBL((float)FDKpow(2.0,-47)); */
|
||||||
/* noiseCorrelationThresh = 0.6^2 */
|
/* noiseCorrelationThresh = 0.6^2 */
|
||||||
static const FIXP_DBL noiseCorrelationThresh = FL2FXCONST_DBL(0.36);
|
static const FIXP_DBL noiseCorrelationThresh = FL2FXCONST_DBL(0.36);
|
||||||
|
|
||||||
static void FDKaacEnc_FDKaacEnc_noiseDetection( PNS_CONFIG *pnsConf,
|
static void FDKaacEnc_FDKaacEnc_noiseDetection(
|
||||||
PNS_DATA *pnsData,
|
PNS_CONFIG *pnsConf, PNS_DATA *pnsData, const INT sfbActive,
|
||||||
const INT sfbActive,
|
const INT *sfbOffset, INT tnsOrder, INT tnsPredictionGain, INT tnsActive,
|
||||||
const INT *sfbOffset,
|
FIXP_DBL *mdctSpectrum, INT *sfbMaxScaleSpec, FIXP_SGL *sfbtonality);
|
||||||
INT tnsOrder,
|
|
||||||
INT tnsPredictionGain,
|
|
||||||
INT tnsActive,
|
|
||||||
FIXP_DBL *mdctSpectrum,
|
|
||||||
INT *sfbMaxScaleSpec,
|
|
||||||
FIXP_SGL *sfbtonality );
|
|
||||||
|
|
||||||
static void FDKaacEnc_CalcNoiseNrgs( const INT sfbActive,
|
static void FDKaacEnc_CalcNoiseNrgs(const INT sfbActive, INT *pnsFlag,
|
||||||
INT *pnsFlag,
|
FIXP_DBL *sfbEnergyLdData, INT *noiseNrg);
|
||||||
FIXP_DBL *sfbEnergyLdData,
|
|
||||||
INT *noiseNrg );
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
|
|
||||||
@ -129,28 +134,15 @@ static void FDKaacEnc_CalcNoiseNrgs( const INT sfbActive,
|
|||||||
|
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_InitPnsConfiguration(PNS_CONFIG *pnsConf,
|
AAC_ENCODER_ERROR FDKaacEnc_InitPnsConfiguration(
|
||||||
INT bitRate,
|
PNS_CONFIG *pnsConf, INT bitRate, INT sampleRate, INT usePns, INT sfbCnt,
|
||||||
INT sampleRate,
|
const INT *sfbOffset, const INT numChan, const INT isLC) {
|
||||||
INT usePns,
|
|
||||||
INT sfbCnt,
|
|
||||||
const INT *sfbOffset,
|
|
||||||
const INT numChan,
|
|
||||||
const INT isLC)
|
|
||||||
{
|
|
||||||
AAC_ENCODER_ERROR ErrorStatus;
|
AAC_ENCODER_ERROR ErrorStatus;
|
||||||
|
|
||||||
/* init noise detection */
|
/* init noise detection */
|
||||||
ErrorStatus = FDKaacEnc_GetPnsParam(&pnsConf->np,
|
ErrorStatus = FDKaacEnc_GetPnsParam(&pnsConf->np, bitRate, sampleRate, sfbCnt,
|
||||||
bitRate,
|
sfbOffset, &usePns, numChan, isLC);
|
||||||
sampleRate,
|
if (ErrorStatus != AAC_ENC_OK) return ErrorStatus;
|
||||||
sfbCnt,
|
|
||||||
sfbOffset,
|
|
||||||
&usePns,
|
|
||||||
numChan,
|
|
||||||
isLC);
|
|
||||||
if (ErrorStatus != AAC_ENC_OK)
|
|
||||||
return ErrorStatus;
|
|
||||||
|
|
||||||
pnsConf->minCorrelationEnergy = minCorrelationEnergy;
|
pnsConf->minCorrelationEnergy = minCorrelationEnergy;
|
||||||
pnsConf->noiseCorrelationThresh = noiseCorrelationThresh;
|
pnsConf->noiseCorrelationThresh = noiseCorrelationThresh;
|
||||||
@ -160,8 +152,6 @@ AAC_ENCODER_ERROR FDKaacEnc_InitPnsConfiguration(PNS_CONFIG *pnsConf,
|
|||||||
return AAC_ENC_OK;
|
return AAC_ENC_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
|
|
||||||
functionname: FDKaacEnc_PnsDetect
|
functionname: FDKaacEnc_PnsDetect
|
||||||
@ -180,71 +170,53 @@ AAC_ENCODER_ERROR FDKaacEnc_InitPnsConfiguration(PNS_CONFIG *pnsConf,
|
|||||||
output: pnsFlag in pns data structure
|
output: pnsFlag in pns data structure
|
||||||
|
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
void FDKaacEnc_PnsDetect(PNS_CONFIG *pnsConf,
|
void FDKaacEnc_PnsDetect(PNS_CONFIG *pnsConf, PNS_DATA *pnsData,
|
||||||
PNS_DATA *pnsData,
|
const INT lastWindowSequence, const INT sfbActive,
|
||||||
const INT lastWindowSequence,
|
const INT maxSfbPerGroup, FIXP_DBL *sfbThresholdLdData,
|
||||||
const INT sfbActive,
|
const INT *sfbOffset, FIXP_DBL *mdctSpectrum,
|
||||||
const INT maxSfbPerGroup,
|
INT *sfbMaxScaleSpec, FIXP_SGL *sfbtonality,
|
||||||
FIXP_DBL *sfbThresholdLdData,
|
INT tnsOrder, INT tnsPredictionGain, INT tnsActive,
|
||||||
const INT *sfbOffset,
|
FIXP_DBL *sfbEnergyLdData, INT *noiseNrg)
|
||||||
FIXP_DBL *mdctSpectrum,
|
|
||||||
INT *sfbMaxScaleSpec,
|
|
||||||
FIXP_SGL *sfbtonality,
|
|
||||||
INT tnsOrder,
|
|
||||||
INT tnsPredictionGain,
|
|
||||||
INT tnsActive,
|
|
||||||
FIXP_DBL *sfbEnergyLdData,
|
|
||||||
INT *noiseNrg )
|
|
||||||
|
|
||||||
{
|
{
|
||||||
int sfb;
|
int sfb;
|
||||||
int startNoiseSfb;
|
int startNoiseSfb;
|
||||||
|
|
||||||
if (pnsConf->np.detectionAlgorithmFlags & IS_LOW_COMLEXITY) {
|
/* Reset pns info. */
|
||||||
if ( (!pnsConf->usePns) || /* pns enabled? */
|
FDKmemclear(pnsData->pnsFlag, sizeof(pnsData->pnsFlag));
|
||||||
(lastWindowSequence == SHORT_WINDOW) ) /* currently only long blocks */
|
|
||||||
{
|
|
||||||
FDKmemclear(pnsData->pnsFlag, MAX_GROUPED_SFB*sizeof(INT)); /* clear all pnsFlags */
|
|
||||||
for (sfb = 0; sfb < MAX_GROUPED_SFB; sfb++) {
|
for (sfb = 0; sfb < MAX_GROUPED_SFB; sfb++) {
|
||||||
noiseNrg[sfb] = NO_NOISE_PNS; /* clear nrg's of previous frame */
|
noiseNrg[sfb] = NO_NOISE_PNS;
|
||||||
}
|
}
|
||||||
return;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
else {
|
|
||||||
if(!pnsConf->usePns)
|
|
||||||
return;
|
|
||||||
|
|
||||||
/* PNS only for long Windows */
|
/* Disable PNS and skip detection in certain cases. */
|
||||||
if (pnsConf->np.detectionAlgorithmFlags & JUST_LONG_WINDOW) {
|
if (pnsConf->usePns == 0) {
|
||||||
if(lastWindowSequence != LONG_WINDOW) {
|
return;
|
||||||
for (sfb = 0; sfb < sfbActive; sfb++) {
|
} else {
|
||||||
pnsData->pnsFlag[sfb] = 0; /* clear all pnsFlags */
|
/* AAC - LC core encoder */
|
||||||
|
if ((pnsConf->np.detectionAlgorithmFlags & IS_LOW_COMPLEXITY) &&
|
||||||
|
(lastWindowSequence == SHORT_WINDOW)) {
|
||||||
|
return;
|
||||||
}
|
}
|
||||||
|
/* AAC - (E)LD core encoder */
|
||||||
|
if (!(pnsConf->np.detectionAlgorithmFlags & IS_LOW_COMPLEXITY) &&
|
||||||
|
(pnsConf->np.detectionAlgorithmFlags & JUST_LONG_WINDOW) &&
|
||||||
|
(lastWindowSequence != LONG_WINDOW)) {
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
|
||||||
/*
|
/*
|
||||||
call noise detection
|
call noise detection
|
||||||
*/
|
*/
|
||||||
FDKaacEnc_FDKaacEnc_noiseDetection( pnsConf,
|
FDKaacEnc_FDKaacEnc_noiseDetection(
|
||||||
pnsData,
|
pnsConf, pnsData, sfbActive, sfbOffset, tnsOrder, tnsPredictionGain,
|
||||||
sfbActive,
|
tnsActive, mdctSpectrum, sfbMaxScaleSpec, sfbtonality);
|
||||||
sfbOffset,
|
|
||||||
tnsOrder,
|
|
||||||
tnsPredictionGain,
|
|
||||||
tnsActive,
|
|
||||||
mdctSpectrum,
|
|
||||||
sfbMaxScaleSpec,
|
|
||||||
sfbtonality );
|
|
||||||
|
|
||||||
/* set startNoiseSfb (long) */
|
/* set startNoiseSfb (long) */
|
||||||
startNoiseSfb = pnsConf->np.startSfb;
|
startNoiseSfb = pnsConf->np.startSfb;
|
||||||
|
|
||||||
/* Set noise substitution status */
|
/* Set noise substitution status */
|
||||||
for (sfb = 0; sfb < sfbActive; sfb++) {
|
for (sfb = 0; sfb < sfbActive; sfb++) {
|
||||||
|
|
||||||
/* No PNS below startNoiseSfb */
|
/* No PNS below startNoiseSfb */
|
||||||
if (sfb < startNoiseSfb) {
|
if (sfb < startNoiseSfb) {
|
||||||
pnsData->pnsFlag[sfb] = 0;
|
pnsData->pnsFlag[sfb] = 0;
|
||||||
@ -259,16 +231,16 @@ void FDKaacEnc_PnsDetect(PNS_CONFIG *pnsConf,
|
|||||||
*/
|
*/
|
||||||
|
|
||||||
if ((pnsData->noiseFuzzyMeasure[sfb] > FL2FXCONST_SGL(0.5)) &&
|
if ((pnsData->noiseFuzzyMeasure[sfb] > FL2FXCONST_SGL(0.5)) &&
|
||||||
( (sfbThresholdLdData[sfb] + FL2FXCONST_DBL(0.5849625f/64.0f)) /* thr * 1.5 = thrLd +ld(1.5)/64 */
|
((sfbThresholdLdData[sfb] +
|
||||||
< sfbEnergyLdData[sfb] ) )
|
FL2FXCONST_DBL(0.5849625f /
|
||||||
{
|
64.0f)) /* thr * 1.5 = thrLd +ld(1.5)/64 */
|
||||||
|
< sfbEnergyLdData[sfb])) {
|
||||||
/*
|
/*
|
||||||
mark in psyout flag array that we will code
|
mark in psyout flag array that we will code
|
||||||
this band with PNS
|
this band with PNS
|
||||||
*/
|
*/
|
||||||
pnsData->pnsFlag[sfb] = 1; /* PNS_ON */
|
pnsData->pnsFlag[sfb] = 1; /* PNS_ON */
|
||||||
}
|
} else {
|
||||||
else{
|
|
||||||
pnsData->pnsFlag[sfb] = 0; /* PNS_OFF */
|
pnsData->pnsFlag[sfb] = 0; /* PNS_OFF */
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -276,7 +248,8 @@ void FDKaacEnc_PnsDetect(PNS_CONFIG *pnsConf,
|
|||||||
}
|
}
|
||||||
|
|
||||||
/* avoid PNS holes */
|
/* avoid PNS holes */
|
||||||
if((pnsData->noiseFuzzyMeasure[0]>FL2FXCONST_SGL(0.5f)) && (pnsData->pnsFlag[1])) {
|
if ((pnsData->noiseFuzzyMeasure[0] > FL2FXCONST_SGL(0.5f)) &&
|
||||||
|
(pnsData->pnsFlag[1])) {
|
||||||
pnsData->pnsFlag[0] = 1;
|
pnsData->pnsFlag[0] = 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -289,7 +262,9 @@ void FDKaacEnc_PnsDetect(PNS_CONFIG *pnsConf,
|
|||||||
|
|
||||||
if (maxSfbPerGroup > 0) {
|
if (maxSfbPerGroup > 0) {
|
||||||
/* avoid PNS hole */
|
/* avoid PNS hole */
|
||||||
if((pnsData->noiseFuzzyMeasure[maxSfbPerGroup-1]>pnsConf->np.gapFillThr) && (pnsData->pnsFlag[maxSfbPerGroup-2])) {
|
if ((pnsData->noiseFuzzyMeasure[maxSfbPerGroup - 1] >
|
||||||
|
pnsConf->np.gapFillThr) &&
|
||||||
|
(pnsData->pnsFlag[maxSfbPerGroup - 2])) {
|
||||||
pnsData->pnsFlag[maxSfbPerGroup - 1] = 1;
|
pnsData->pnsFlag[maxSfbPerGroup - 1] = 1;
|
||||||
}
|
}
|
||||||
/* avoid single PNS band */
|
/* avoid single PNS band */
|
||||||
@ -309,17 +284,13 @@ void FDKaacEnc_PnsDetect(PNS_CONFIG *pnsConf,
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
calculate noiseNrg's
|
calculate noiseNrg's
|
||||||
*/
|
*/
|
||||||
FDKaacEnc_CalcNoiseNrgs( sfbActive,
|
FDKaacEnc_CalcNoiseNrgs(sfbActive, pnsData->pnsFlag, sfbEnergyLdData,
|
||||||
pnsData->pnsFlag,
|
|
||||||
sfbEnergyLdData,
|
|
||||||
noiseNrg);
|
noiseNrg);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
|
|
||||||
functionname:FDKaacEnc_FDKaacEnc_noiseDetection
|
functionname:FDKaacEnc_FDKaacEnc_noiseDetection
|
||||||
@ -335,19 +306,12 @@ void FDKaacEnc_PnsDetect(PNS_CONFIG *pnsConf,
|
|||||||
flags tonal / nontonal
|
flags tonal / nontonal
|
||||||
|
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
static void FDKaacEnc_FDKaacEnc_noiseDetection( PNS_CONFIG *pnsConf,
|
static void FDKaacEnc_FDKaacEnc_noiseDetection(
|
||||||
PNS_DATA *pnsData,
|
PNS_CONFIG *pnsConf, PNS_DATA *pnsData, const INT sfbActive,
|
||||||
const INT sfbActive,
|
const INT *sfbOffset, int tnsOrder, INT tnsPredictionGain, INT tnsActive,
|
||||||
const INT *sfbOffset,
|
FIXP_DBL *mdctSpectrum, INT *sfbMaxScaleSpec, FIXP_SGL *sfbtonality) {
|
||||||
int tnsOrder,
|
|
||||||
INT tnsPredictionGain,
|
|
||||||
INT tnsActive,
|
|
||||||
FIXP_DBL *mdctSpectrum,
|
|
||||||
INT *sfbMaxScaleSpec,
|
|
||||||
FIXP_SGL *sfbtonality )
|
|
||||||
{
|
|
||||||
INT condition = TRUE;
|
INT condition = TRUE;
|
||||||
if ( !(pnsConf->np.detectionAlgorithmFlags & IS_LOW_COMLEXITY) ) {
|
if (!(pnsConf->np.detectionAlgorithmFlags & IS_LOW_COMPLEXITY)) {
|
||||||
condition = (tnsOrder > 3);
|
condition = (tnsOrder > 3);
|
||||||
}
|
}
|
||||||
/*
|
/*
|
||||||
@ -356,28 +320,22 @@ static void FDKaacEnc_FDKaacEnc_noiseDetection( PNS_CONFIG *pnsConf,
|
|||||||
*/
|
*/
|
||||||
if ((pnsConf->np.detectionAlgorithmFlags & USE_TNS_GAIN_THR) &&
|
if ((pnsConf->np.detectionAlgorithmFlags & USE_TNS_GAIN_THR) &&
|
||||||
(tnsPredictionGain >= pnsConf->np.tnsGainThreshold) && condition &&
|
(tnsPredictionGain >= pnsConf->np.tnsGainThreshold) && condition &&
|
||||||
!((pnsConf->np.detectionAlgorithmFlags & USE_TNS_PNS) && (tnsPredictionGain >= pnsConf->np.tnsPNSGainThreshold) && (tnsActive)) )
|
!((pnsConf->np.detectionAlgorithmFlags & USE_TNS_PNS) &&
|
||||||
{
|
(tnsPredictionGain >= pnsConf->np.tnsPNSGainThreshold) &&
|
||||||
|
(tnsActive))) {
|
||||||
/* clear all noiseFuzzyMeasure */
|
/* clear all noiseFuzzyMeasure */
|
||||||
FDKmemclear(pnsData->noiseFuzzyMeasure, sfbActive * sizeof(FIXP_SGL));
|
FDKmemclear(pnsData->noiseFuzzyMeasure, sfbActive * sizeof(FIXP_SGL));
|
||||||
}
|
} else {
|
||||||
else
|
|
||||||
{
|
|
||||||
/*
|
/*
|
||||||
call noise detection, output in pnsData->noiseFuzzyMeasure,
|
call noise detection, output in pnsData->noiseFuzzyMeasure,
|
||||||
use real mdct spectral data
|
use real mdct spectral data
|
||||||
*/
|
*/
|
||||||
FDKaacEnc_noiseDetect( mdctSpectrum,
|
FDKaacEnc_noiseDetect(mdctSpectrum, sfbMaxScaleSpec, sfbActive, sfbOffset,
|
||||||
sfbMaxScaleSpec,
|
pnsData->noiseFuzzyMeasure, &pnsConf->np,
|
||||||
sfbActive,
|
|
||||||
sfbOffset,
|
|
||||||
pnsData->noiseFuzzyMeasure,
|
|
||||||
&pnsConf->np,
|
|
||||||
sfbtonality);
|
sfbtonality);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
|
|
||||||
functionname:FDKaacEnc_CalcNoiseNrgs
|
functionname:FDKaacEnc_CalcNoiseNrgs
|
||||||
@ -391,23 +349,21 @@ static void FDKaacEnc_FDKaacEnc_noiseDetection( PNS_CONFIG *pnsConf,
|
|||||||
|
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
|
|
||||||
static void FDKaacEnc_CalcNoiseNrgs( const INT sfbActive,
|
static void FDKaacEnc_CalcNoiseNrgs(const INT sfbActive, INT *RESTRICT pnsFlag,
|
||||||
INT *RESTRICT pnsFlag,
|
|
||||||
FIXP_DBL *RESTRICT sfbEnergyLdData,
|
FIXP_DBL *RESTRICT sfbEnergyLdData,
|
||||||
INT *RESTRICT noiseNrg )
|
INT *RESTRICT noiseNrg) {
|
||||||
{
|
|
||||||
int sfb;
|
int sfb;
|
||||||
INT tmp = (-LOG_NORM_PCM) << 2;
|
INT tmp = (-LOG_NORM_PCM) << 2;
|
||||||
|
|
||||||
for (sfb = 0; sfb < sfbActive; sfb++) {
|
for (sfb = 0; sfb < sfbActive; sfb++) {
|
||||||
if (pnsFlag[sfb]) {
|
if (pnsFlag[sfb]) {
|
||||||
INT nrg = (-sfbEnergyLdData[sfb]+FL2FXCONST_DBL(0.5f/64.0f))>>(DFRACT_BITS-1-7);
|
INT nrg = (-sfbEnergyLdData[sfb] + FL2FXCONST_DBL(0.5f / 64.0f)) >>
|
||||||
|
(DFRACT_BITS - 1 - 7);
|
||||||
noiseNrg[sfb] = tmp - nrg;
|
noiseNrg[sfb] = tmp - nrg;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
|
|
||||||
functionname:FDKaacEnc_CodePnsChannel
|
functionname:FDKaacEnc_CodePnsChannel
|
||||||
@ -422,13 +378,11 @@ static void FDKaacEnc_CalcNoiseNrgs( const INT sfbActive,
|
|||||||
|
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
|
|
||||||
void FDKaacEnc_CodePnsChannel(const INT sfbActive,
|
void FDKaacEnc_CodePnsChannel(const INT sfbActive, PNS_CONFIG *pnsConf,
|
||||||
PNS_CONFIG *pnsConf,
|
|
||||||
INT *RESTRICT pnsFlag,
|
INT *RESTRICT pnsFlag,
|
||||||
FIXP_DBL *RESTRICT sfbEnergyLdData,
|
FIXP_DBL *RESTRICT sfbEnergyLdData,
|
||||||
INT *RESTRICT noiseNrg,
|
INT *RESTRICT noiseNrg,
|
||||||
FIXP_DBL *RESTRICT sfbThresholdLdData)
|
FIXP_DBL *RESTRICT sfbThresholdLdData) {
|
||||||
{
|
|
||||||
INT sfb;
|
INT sfb;
|
||||||
INT lastiNoiseEnergy = 0;
|
INT lastiNoiseEnergy = 0;
|
||||||
INT firstPNSband = 1; /* TRUE for first PNS-coded band */
|
INT firstPNSband = 1; /* TRUE for first PNS-coded band */
|
||||||
@ -447,7 +401,8 @@ void FDKaacEnc_CodePnsChannel(const INT sfbActive,
|
|||||||
if (pnsFlag[sfb]) {
|
if (pnsFlag[sfb]) {
|
||||||
/* high sfbThreshold causes pe = 0 */
|
/* high sfbThreshold causes pe = 0 */
|
||||||
if (noiseNrg[sfb] != NO_NOISE_PNS)
|
if (noiseNrg[sfb] != NO_NOISE_PNS)
|
||||||
sfbThresholdLdData[sfb] = sfbEnergyLdData[sfb] + FL2FXCONST_DBL(1.0f/LD_DATA_SCALING);
|
sfbThresholdLdData[sfb] =
|
||||||
|
sfbEnergyLdData[sfb] + FL2FXCONST_DBL(1.0f / LD_DATA_SCALING);
|
||||||
|
|
||||||
/* set noiseNrg in valid region */
|
/* set noiseNrg in valid region */
|
||||||
if (!firstPNSband) {
|
if (!firstPNSband) {
|
||||||
@ -457,20 +412,17 @@ void FDKaacEnc_CodePnsChannel(const INT sfbActive,
|
|||||||
noiseNrg[sfb] -= deltaiNoiseEnergy - CODE_BOOK_PNS_LAV;
|
noiseNrg[sfb] -= deltaiNoiseEnergy - CODE_BOOK_PNS_LAV;
|
||||||
else if (deltaiNoiseEnergy < -CODE_BOOK_PNS_LAV)
|
else if (deltaiNoiseEnergy < -CODE_BOOK_PNS_LAV)
|
||||||
noiseNrg[sfb] -= deltaiNoiseEnergy + CODE_BOOK_PNS_LAV;
|
noiseNrg[sfb] -= deltaiNoiseEnergy + CODE_BOOK_PNS_LAV;
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
firstPNSband = 0;
|
firstPNSband = 0;
|
||||||
}
|
}
|
||||||
lastiNoiseEnergy = noiseNrg[sfb];
|
lastiNoiseEnergy = noiseNrg[sfb];
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/* no PNS coding */
|
/* no PNS coding */
|
||||||
noiseNrg[sfb] = NO_NOISE_PNS;
|
noiseNrg[sfb] = NO_NOISE_PNS;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
|
|
||||||
functionname:FDKaacEnc_PreProcessPnsChannelPair
|
functionname:FDKaacEnc_PreProcessPnsChannelPair
|
||||||
@ -486,24 +438,21 @@ void FDKaacEnc_CodePnsChannel(const INT sfbActive,
|
|||||||
|
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
|
|
||||||
void FDKaacEnc_PreProcessPnsChannelPair(const INT sfbActive,
|
void FDKaacEnc_PreProcessPnsChannelPair(
|
||||||
FIXP_DBL *RESTRICT sfbEnergyLeft,
|
const INT sfbActive, FIXP_DBL *RESTRICT sfbEnergyLeft,
|
||||||
FIXP_DBL *RESTRICT sfbEnergyRight,
|
FIXP_DBL *RESTRICT sfbEnergyRight, FIXP_DBL *RESTRICT sfbEnergyLeftLD,
|
||||||
FIXP_DBL *RESTRICT sfbEnergyLeftLD,
|
FIXP_DBL *RESTRICT sfbEnergyRightLD, FIXP_DBL *RESTRICT sfbEnergyMid,
|
||||||
FIXP_DBL *RESTRICT sfbEnergyRightLD,
|
PNS_CONFIG *RESTRICT pnsConf, PNS_DATA *pnsDataLeft,
|
||||||
FIXP_DBL *RESTRICT sfbEnergyMid,
|
PNS_DATA *pnsDataRight) {
|
||||||
PNS_CONFIG *RESTRICT pnsConf,
|
|
||||||
PNS_DATA *pnsDataLeft,
|
|
||||||
PNS_DATA *pnsDataRight)
|
|
||||||
{
|
|
||||||
INT sfb;
|
INT sfb;
|
||||||
FIXP_DBL ccf;
|
FIXP_DBL ccf;
|
||||||
|
|
||||||
if(!pnsConf->usePns)
|
if (!pnsConf->usePns) return;
|
||||||
return;
|
|
||||||
|
|
||||||
FIXP_DBL *RESTRICT pNoiseEnergyCorrelationL = pnsDataLeft->noiseEnergyCorrelation;
|
FIXP_DBL *RESTRICT pNoiseEnergyCorrelationL =
|
||||||
FIXP_DBL *RESTRICT pNoiseEnergyCorrelationR = pnsDataRight->noiseEnergyCorrelation;
|
pnsDataLeft->noiseEnergyCorrelation;
|
||||||
|
FIXP_DBL *RESTRICT pNoiseEnergyCorrelationR =
|
||||||
|
pnsDataRight->noiseEnergyCorrelation;
|
||||||
|
|
||||||
for (sfb = 0; sfb < sfbActive; sfb++) {
|
for (sfb = 0; sfb < sfbActive; sfb++) {
|
||||||
FIXP_DBL quot = (sfbEnergyLeftLD[sfb] >> 1) + (sfbEnergyRightLD[sfb] >> 1);
|
FIXP_DBL quot = (sfbEnergyLeftLD[sfb] >> 1) + (sfbEnergyRightLD[sfb] >> 1);
|
||||||
@ -511,12 +460,18 @@ void FDKaacEnc_PreProcessPnsChannelPair(const INT sfbActive,
|
|||||||
if (quot < FL2FXCONST_DBL(-32.0f / (float)LD_DATA_SCALING))
|
if (quot < FL2FXCONST_DBL(-32.0f / (float)LD_DATA_SCALING))
|
||||||
ccf = FL2FXCONST_DBL(0.0f);
|
ccf = FL2FXCONST_DBL(0.0f);
|
||||||
else {
|
else {
|
||||||
FIXP_DBL accu = sfbEnergyMid[sfb]- (((sfbEnergyLeft[sfb]>>1)+(sfbEnergyRight[sfb]>>1))>>1);
|
FIXP_DBL accu =
|
||||||
|
sfbEnergyMid[sfb] -
|
||||||
|
(((sfbEnergyLeft[sfb] >> 1) + (sfbEnergyRight[sfb] >> 1)) >> 1);
|
||||||
INT sign = (accu < FL2FXCONST_DBL(0.0f)) ? 1 : 0;
|
INT sign = (accu < FL2FXCONST_DBL(0.0f)) ? 1 : 0;
|
||||||
accu = fixp_abs(accu);
|
accu = fixp_abs(accu);
|
||||||
|
|
||||||
ccf = CalcLdData(accu) + FL2FXCONST_DBL((float)1.0f/(float)LD_DATA_SCALING) - quot; /* ld(accu*2) = ld(accu) + 1 */
|
ccf = CalcLdData(accu) +
|
||||||
ccf = (ccf>=FL2FXCONST_DBL(0.0)) ? ((FIXP_DBL)MAXVAL_DBL) : (sign) ? -CalcInvLdData(ccf) : CalcInvLdData(ccf);
|
FL2FXCONST_DBL((float)1.0f / (float)LD_DATA_SCALING) -
|
||||||
|
quot; /* ld(accu*2) = ld(accu) + 1 */
|
||||||
|
ccf = (ccf >= FL2FXCONST_DBL(0.0))
|
||||||
|
? ((FIXP_DBL)MAXVAL_DBL)
|
||||||
|
: (sign) ? -CalcInvLdData(ccf) : CalcInvLdData(ccf);
|
||||||
}
|
}
|
||||||
|
|
||||||
pNoiseEnergyCorrelationL[sfb] = ccf;
|
pNoiseEnergyCorrelationL[sfb] = ccf;
|
||||||
@ -524,8 +479,6 @@ void FDKaacEnc_PreProcessPnsChannelPair(const INT sfbActive,
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
|
|
||||||
functionname:FDKaacEnc_PostProcessPnsChannelPair
|
functionname:FDKaacEnc_PostProcessPnsChannelPair
|
||||||
@ -546,29 +499,25 @@ void FDKaacEnc_PostProcessPnsChannelPair(const INT sfbActive,
|
|||||||
PNS_CONFIG *pnsConf,
|
PNS_CONFIG *pnsConf,
|
||||||
PNS_DATA *pnsDataLeft,
|
PNS_DATA *pnsDataLeft,
|
||||||
PNS_DATA *pnsDataRight,
|
PNS_DATA *pnsDataRight,
|
||||||
INT *RESTRICT msMask,
|
INT *RESTRICT msMask, INT *msDigest) {
|
||||||
INT *msDigest )
|
|
||||||
{
|
|
||||||
INT sfb;
|
INT sfb;
|
||||||
|
|
||||||
if(!pnsConf->usePns)
|
if (!pnsConf->usePns) return;
|
||||||
return;
|
|
||||||
|
|
||||||
for (sfb = 0; sfb < sfbActive; sfb++) {
|
for (sfb = 0; sfb < sfbActive; sfb++) {
|
||||||
/*
|
/*
|
||||||
MS post processing
|
MS post processing
|
||||||
*/
|
*/
|
||||||
if (msMask[sfb]) {
|
if (msMask[sfb]) {
|
||||||
if( (pnsDataLeft->pnsFlag[sfb]) &&
|
if ((pnsDataLeft->pnsFlag[sfb]) && (pnsDataRight->pnsFlag[sfb])) {
|
||||||
(pnsDataRight->pnsFlag[sfb]) ) {
|
|
||||||
/* AAC only: Standard */
|
/* AAC only: Standard */
|
||||||
/* do this to avoid ms flags in layers that should not have it */
|
/* do this to avoid ms flags in layers that should not have it */
|
||||||
if(pnsDataLeft->noiseEnergyCorrelation[sfb] <= pnsConf->noiseCorrelationThresh){
|
if (pnsDataLeft->noiseEnergyCorrelation[sfb] <=
|
||||||
|
pnsConf->noiseCorrelationThresh) {
|
||||||
msMask[sfb] = 0;
|
msMask[sfb] = 0;
|
||||||
*msDigest = MS_SOME;
|
*msDigest = MS_SOME;
|
||||||
}
|
}
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/*
|
/*
|
||||||
No PNS coding
|
No PNS coding
|
||||||
*/
|
*/
|
||||||
@ -582,7 +531,8 @@ void FDKaacEnc_PostProcessPnsChannelPair(const INT sfbActive,
|
|||||||
pns is active in both channels
|
pns is active in both channels
|
||||||
*/
|
*/
|
||||||
if ((pnsDataLeft->pnsFlag[sfb]) && (pnsDataRight->pnsFlag[sfb])) {
|
if ((pnsDataLeft->pnsFlag[sfb]) && (pnsDataRight->pnsFlag[sfb])) {
|
||||||
if(pnsDataLeft->noiseEnergyCorrelation[sfb] > pnsConf->noiseCorrelationThresh) {
|
if (pnsDataLeft->noiseEnergyCorrelation[sfb] >
|
||||||
|
pnsConf->noiseCorrelationThresh) {
|
||||||
msMask[sfb] = 1;
|
msMask[sfb] = 1;
|
||||||
*msDigest = MS_SOME;
|
*msDigest = MS_SOME;
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,20 +90,20 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Lohwasser
|
Author(s): M. Lohwasser
|
||||||
contents/description: pns.h
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: pns.h
|
||||||
|
|
||||||
#ifndef __PNS_H
|
*******************************************************************************/
|
||||||
#define __PNS_H
|
|
||||||
|
#ifndef AACENC_PNS_H
|
||||||
|
#define AACENC_PNS_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#include "pnsparam.h"
|
#include "pnsparam.h"
|
||||||
|
|
||||||
#define NO_NOISE_PNS FDK_INT_MIN
|
#define NO_NOISE_PNS FDK_INT_MIN
|
||||||
@ -110,4 +121,4 @@ typedef struct{
|
|||||||
INT pnsFlag[MAX_GROUPED_SFB];
|
INT pnsFlag[MAX_GROUPED_SFB];
|
||||||
} PNS_DATA;
|
} PNS_DATA;
|
||||||
|
|
||||||
#endif
|
#endif /* AACENC_PNS_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,23 +90,23 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: Alex Groeschel
|
Author(s): Alex Groeschel
|
||||||
contents/description: Temporal noise shaping
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Temporal noise shaping
|
||||||
|
|
||||||
#ifndef _TNS_H
|
*******************************************************************************/
|
||||||
#define _TNS_H
|
|
||||||
|
#ifndef AACENC_TNS_H
|
||||||
|
#define AACENC_TNS_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#include "psy_const.h"
|
#include "psy_const.h"
|
||||||
|
|
||||||
|
|
||||||
#ifndef PI
|
#ifndef PI
|
||||||
#define PI 3.1415926535897931f
|
#define PI 3.1415926535897931f
|
||||||
#endif
|
#endif
|
||||||
@ -114,25 +125,26 @@ amm-info@iis.fraunhofer.de
|
|||||||
/* TNS max filter order for Low Complexity MPEG4 profile */
|
/* TNS max filter order for Low Complexity MPEG4 profile */
|
||||||
#define TNS_MAX_ORDER 12
|
#define TNS_MAX_ORDER 12
|
||||||
|
|
||||||
|
|
||||||
#define MAX_NUM_OF_FILTERS 2
|
#define MAX_NUM_OF_FILTERS 2
|
||||||
|
|
||||||
#define HIFILT 0 /* index of higher filter */
|
#define HIFILT 0 /* index of higher filter */
|
||||||
#define LOFILT 1 /* index of lower filter */
|
#define LOFILT 1 /* index of lower filter */
|
||||||
|
|
||||||
|
|
||||||
typedef struct { /* stuff that is tabulated dependent on bitrate etc. */
|
typedef struct { /* stuff that is tabulated dependent on bitrate etc. */
|
||||||
INT filterEnabled[MAX_NUM_OF_FILTERS];
|
INT filterEnabled[MAX_NUM_OF_FILTERS];
|
||||||
INT threshOn[MAX_NUM_OF_FILTERS]; /* min. prediction gain for using tns TABUL*/
|
INT threshOn[MAX_NUM_OF_FILTERS]; /* min. prediction gain for using tns
|
||||||
|
TABUL*/
|
||||||
INT filterStartFreq[MAX_NUM_OF_FILTERS]; /* lowest freq for lpc TABUL*/
|
INT filterStartFreq[MAX_NUM_OF_FILTERS]; /* lowest freq for lpc TABUL*/
|
||||||
INT tnsLimitOrder[MAX_NUM_OF_FILTERS]; /* Limit for TNS order TABUL*/
|
INT tnsLimitOrder[MAX_NUM_OF_FILTERS]; /* Limit for TNS order TABUL*/
|
||||||
INT tnsFilterDirection[MAX_NUM_OF_FILTERS]; /* Filtering direction, 0=up, 1=down TABUL */
|
INT tnsFilterDirection[MAX_NUM_OF_FILTERS]; /* Filtering direction, 0=up,
|
||||||
|
1=down TABUL */
|
||||||
INT acfSplit[MAX_NUM_OF_FILTERS];
|
INT acfSplit[MAX_NUM_OF_FILTERS];
|
||||||
FIXP_DBL tnsTimeResolution[MAX_NUM_OF_FILTERS]; /* TNS max. time resolution TABUL. Should be fract but MSVC won't compile then */
|
FIXP_DBL tnsTimeResolution[MAX_NUM_OF_FILTERS]; /* TNS max. time resolution
|
||||||
|
TABUL. Should be fract but
|
||||||
|
MSVC won't compile then */
|
||||||
INT seperateFiltersAllowed;
|
INT seperateFiltersAllowed;
|
||||||
} TNS_PARAMETER_TABULATED;
|
} TNS_PARAMETER_TABULATED;
|
||||||
|
|
||||||
|
|
||||||
typedef struct { /*assigned at InitTime*/
|
typedef struct { /*assigned at InitTime*/
|
||||||
TNS_PARAMETER_TABULATED confTab;
|
TNS_PARAMETER_TABULATED confTab;
|
||||||
INT isLowDelay;
|
INT isLowDelay;
|
||||||
@ -150,7 +162,6 @@ typedef struct { /*assigned at InitTime*/
|
|||||||
|
|
||||||
} TNS_CONFIG;
|
} TNS_CONFIG;
|
||||||
|
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
INT tnsActive[MAX_NUM_OF_FILTERS];
|
INT tnsActive[MAX_NUM_OF_FILTERS];
|
||||||
INT predictionGain[MAX_NUM_OF_FILTERS];
|
INT predictionGain[MAX_NUM_OF_FILTERS];
|
||||||
@ -170,7 +181,8 @@ typedef struct{ /*changed at runTime*/
|
|||||||
typedef shouldBeUnion {
|
typedef shouldBeUnion {
|
||||||
TNS_DATA_LONG Long;
|
TNS_DATA_LONG Long;
|
||||||
TNS_DATA_SHORT Short;
|
TNS_DATA_SHORT Short;
|
||||||
}TNS_DATA_RAW;
|
}
|
||||||
|
TNS_DATA_RAW;
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
INT numOfSubblocks;
|
INT numOfSubblocks;
|
||||||
@ -187,16 +199,15 @@ typedef struct{
|
|||||||
INT direction[TRANS_FAC][MAX_NUM_OF_FILTERS];
|
INT direction[TRANS_FAC][MAX_NUM_OF_FILTERS];
|
||||||
INT coefCompress[TRANS_FAC][MAX_NUM_OF_FILTERS];
|
INT coefCompress[TRANS_FAC][MAX_NUM_OF_FILTERS];
|
||||||
/* for Long: length TNS_MAX_ORDER (12 for LC) is required -> 12 */
|
/* for Long: length TNS_MAX_ORDER (12 for LC) is required -> 12 */
|
||||||
/* for Short: length TRANS_FAC*TNS_MAX_ORDER (only 5 for short LC) is required -> 8*5=40 */
|
/* for Short: length TRANS_FAC*TNS_MAX_ORDER (only 5 for short LC) is required
|
||||||
/* Currently TRANS_FAC*TNS_MAX_ORDER = 8*12 = 96 (for LC) is used (per channel)! Memory could be saved here! */
|
* -> 8*5=40 */
|
||||||
|
/* Currently TRANS_FAC*TNS_MAX_ORDER = 8*12 = 96 (for LC) is used (per
|
||||||
|
* channel)! Memory could be saved here! */
|
||||||
INT coef[TRANS_FAC][MAX_NUM_OF_FILTERS][TNS_MAX_ORDER];
|
INT coef[TRANS_FAC][MAX_NUM_OF_FILTERS][TNS_MAX_ORDER];
|
||||||
} TNS_INFO;
|
} TNS_INFO;
|
||||||
|
|
||||||
INT FDKaacEnc_FreqToBandWithRounding(
|
INT FDKaacEnc_FreqToBandWidthRounding(const INT freq, const INT fs,
|
||||||
const INT freq,
|
|
||||||
const INT fs,
|
|
||||||
const INT numOfBands,
|
const INT numOfBands,
|
||||||
const INT *bandStartOffset
|
const INT *bandStartOffset);
|
||||||
);
|
|
||||||
|
|
||||||
#endif /* _TNS_H */
|
#endif /* AACENC_TNS_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,71 +90,77 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Werner
|
Author(s): M. Werner
|
||||||
contents/description: Threshold compensation
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Threshold compensation
|
||||||
|
|
||||||
#ifndef __ADJ_THR_H
|
*******************************************************************************/
|
||||||
#define __ADJ_THR_H
|
|
||||||
|
|
||||||
|
#ifndef ADJ_THR_H
|
||||||
|
#define ADJ_THR_H
|
||||||
|
|
||||||
|
#include "common_fix.h"
|
||||||
#include "adj_thr_data.h"
|
#include "adj_thr_data.h"
|
||||||
#include "qc_data.h"
|
#include "qc_data.h"
|
||||||
#include "line_pe.h"
|
#include "line_pe.h"
|
||||||
#include "interface.h"
|
#include "interface.h"
|
||||||
|
|
||||||
|
/*****************************************************************************
|
||||||
|
functionname: FDKaacEnc_peCalculation
|
||||||
|
description:
|
||||||
|
*****************************************************************************/
|
||||||
|
void FDKaacEnc_peCalculation(PE_DATA *const peData,
|
||||||
|
const PSY_OUT_CHANNEL *const psyOutChannel[(2)],
|
||||||
|
QC_OUT_CHANNEL *const qcOutChannel[(2)],
|
||||||
|
const struct TOOLSINFO *const toolsInfo,
|
||||||
|
ATS_ELEMENT *const adjThrStateElement,
|
||||||
|
const INT nChannels);
|
||||||
|
|
||||||
void FDKaacEnc_peCalculation(
|
/*****************************************************************************
|
||||||
PE_DATA *peData,
|
functionname: FDKaacEnc_AdjThrNew
|
||||||
PSY_OUT_CHANNEL* psyOutChannel[(2)],
|
description: allocate ADJ_THR_STATE
|
||||||
QC_OUT_CHANNEL* qcOutChannel[(2)],
|
*****************************************************************************/
|
||||||
struct TOOLSINFO *toolsInfo,
|
INT FDKaacEnc_AdjThrNew(ADJ_THR_STATE **phAdjThr, INT nElements);
|
||||||
ATS_ELEMENT* adjThrStateElement,
|
|
||||||
const INT nChannels
|
|
||||||
);
|
|
||||||
|
|
||||||
INT FDKaacEnc_AdjThrNew(ADJ_THR_STATE** phAdjThr,
|
/*****************************************************************************
|
||||||
INT nElements);
|
functionname: FDKaacEnc_AdjThrInit
|
||||||
|
description: initialize ADJ_THR_STATE
|
||||||
|
*****************************************************************************/
|
||||||
|
void FDKaacEnc_AdjThrInit(
|
||||||
|
ADJ_THR_STATE *const hAdjThr, const INT meanPe, const INT invQuant,
|
||||||
|
const CHANNEL_MAPPING *const channelMapping, const INT sampleRate,
|
||||||
|
const INT totalBitrate, const INT isLowDelay,
|
||||||
|
const AACENC_BITRES_MODE bitResMode, const INT dZoneQuantEnable,
|
||||||
|
const INT bitDistributionMode, const FIXP_DBL vbrQualFactor);
|
||||||
|
|
||||||
void FDKaacEnc_AdjThrInit(ADJ_THR_STATE *hAdjThr,
|
/*****************************************************************************
|
||||||
const INT peMean,
|
functionname: FDKaacEnc_DistributeBits
|
||||||
ELEMENT_BITS* elBits[(8)],
|
description:
|
||||||
INT invQuant,
|
*****************************************************************************/
|
||||||
INT nElements,
|
void FDKaacEnc_DistributeBits(
|
||||||
INT nChannelsEff,
|
ADJ_THR_STATE *adjThrState, ATS_ELEMENT *AdjThrStateElement,
|
||||||
INT sampleRate,
|
PSY_OUT_CHANNEL *psyOutChannel[(2)], PE_DATA *peData, INT *grantedPe,
|
||||||
INT advancedBitsToPe,
|
INT *grantedPeCorr, const INT nChannels, const INT commonWindow,
|
||||||
FIXP_DBL vbrQualFactor,
|
const INT avgBits, const INT bitresBits, const INT maxBitresBits,
|
||||||
const INT dZoneQuantEnable);
|
const FIXP_DBL maxBitFac, const AACENC_BITRES_MODE bitResMode);
|
||||||
|
|
||||||
|
/*****************************************************************************
|
||||||
|
functionname: FDKaacEnc_AdjustThresholds
|
||||||
|
description: adjust thresholds
|
||||||
|
*****************************************************************************/
|
||||||
|
void FDKaacEnc_AdjustThresholds(
|
||||||
|
ADJ_THR_STATE *const hAdjThr, QC_OUT_ELEMENT *const qcElement[((8))],
|
||||||
|
QC_OUT *const qcOut, const PSY_OUT_ELEMENT *const psyOutElement[((8))],
|
||||||
|
const INT CBRbitrateMode, const CHANNEL_MAPPING *const cm);
|
||||||
|
|
||||||
void FDKaacEnc_DistributeBits(ADJ_THR_STATE *adjThrState,
|
/*****************************************************************************
|
||||||
ATS_ELEMENT *AdjThrStateElement,
|
functionname: FDKaacEnc_AdjThrClose
|
||||||
PSY_OUT_CHANNEL *psyOutChannel[(2)],
|
description:
|
||||||
PE_DATA *peData,
|
*****************************************************************************/
|
||||||
INT *grantedPe,
|
|
||||||
INT *grantedPeCorr,
|
|
||||||
const INT nChannels,
|
|
||||||
const INT commonWindow,
|
|
||||||
const INT avgBits,
|
|
||||||
const INT bitresBits,
|
|
||||||
const INT maxBitresBits,
|
|
||||||
const FIXP_DBL maxBitFac,
|
|
||||||
const INT bitDistributionMode);
|
|
||||||
|
|
||||||
void FDKaacEnc_AdjustThresholds(ATS_ELEMENT* AdjThrStateElement[(8)],
|
|
||||||
QC_OUT_ELEMENT* qcElement[(8)],
|
|
||||||
QC_OUT* qcOut,
|
|
||||||
PSY_OUT_ELEMENT* psyOutElement[(8)],
|
|
||||||
INT CBRbitrateMode,
|
|
||||||
INT maxIter2ndGuess,
|
|
||||||
CHANNEL_MAPPING* cm);
|
|
||||||
|
|
||||||
void FDKaacEnc_AdjThrClose(ADJ_THR_STATE **hAdjThr);
|
void FDKaacEnc_AdjThrClose(ADJ_THR_STATE **hAdjThr);
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,21 +90,32 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/************************* Fast MPEG AAC Audio Encoder **********************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Schug / A. Groeschel
|
Author(s): M. Schug / A. Groeschel
|
||||||
contents/description: threshold calculations
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: threshold calculations
|
||||||
|
|
||||||
#ifndef __ADJ_THR_DATA_H
|
*******************************************************************************/
|
||||||
#define __ADJ_THR_DATA_H
|
|
||||||
|
|
||||||
|
#ifndef ADJ_THR_DATA_H
|
||||||
|
#define ADJ_THR_DATA_H
|
||||||
|
|
||||||
#include "psy_const.h"
|
#include "psy_const.h"
|
||||||
|
|
||||||
|
typedef enum {
|
||||||
|
AACENC_BD_MODE_INTER_ELEMENT = 0,
|
||||||
|
AACENC_BD_MODE_INTRA_ELEMENT = 1
|
||||||
|
} AACENC_BIT_DISTRIBUTION_MODE;
|
||||||
|
|
||||||
|
typedef enum {
|
||||||
|
AACENC_BR_MODE_FULL = 0,
|
||||||
|
AACENC_BR_MODE_REDUCED = 1,
|
||||||
|
AACENC_BR_MODE_DISABLED = 2
|
||||||
|
} AACENC_BITRES_MODE;
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
FIXP_DBL clipSaveLow, clipSaveHigh;
|
FIXP_DBL clipSaveLow, clipSaveHigh;
|
||||||
FIXP_DBL minBitSave, maxBitSave;
|
FIXP_DBL minBitSave, maxBitSave;
|
||||||
@ -124,9 +146,10 @@ typedef struct {
|
|||||||
INT bits2PeFactor_e;
|
INT bits2PeFactor_e;
|
||||||
/* avoid hole parameters */
|
/* avoid hole parameters */
|
||||||
AH_PARAM ahParam;
|
AH_PARAM ahParam;
|
||||||
/* values for correction of pe */
|
/* parameters for adaptation of minSnr */
|
||||||
/* paramters for adaptation of minSnr */
|
|
||||||
MINSNR_ADAPT_PARAM minSnrAdaptParam;
|
MINSNR_ADAPT_PARAM minSnrAdaptParam;
|
||||||
|
|
||||||
|
/* values for correction of pe */
|
||||||
INT peLast;
|
INT peLast;
|
||||||
INT dynBitsLast;
|
INT dynBitsLast;
|
||||||
FIXP_DBL peCorrectionFactor_m;
|
FIXP_DBL peCorrectionFactor_m;
|
||||||
@ -144,7 +167,8 @@ typedef struct {
|
|||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
BRES_PARAM bresParamLong, bresParamShort;
|
BRES_PARAM bresParamLong, bresParamShort;
|
||||||
ATS_ELEMENT* adjThrStateElem[(8)];
|
ATS_ELEMENT* adjThrStateElem[((8))];
|
||||||
|
AACENC_BIT_DISTRIBUTION_MODE bitDistributionMode;
|
||||||
INT maxIter2ndGuess;
|
INT maxIter2ndGuess;
|
||||||
} ADJ_THR_STATE;
|
} ADJ_THR_STATE;
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,41 +90,44 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Werner
|
Author(s): M. Werner
|
||||||
contents/description: Band/Line energy calculations
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Band/Line energy calculations
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "band_nrg.h"
|
#include "band_nrg.h"
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
functionname: FDKaacEnc_CalcSfbMaxScaleSpec
|
functionname: FDKaacEnc_CalcSfbMaxScaleSpec
|
||||||
description:
|
description:
|
||||||
input:
|
input:
|
||||||
output:
|
output:
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
void
|
void FDKaacEnc_CalcSfbMaxScaleSpec(const FIXP_DBL *RESTRICT mdctSpectrum,
|
||||||
FDKaacEnc_CalcSfbMaxScaleSpec(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|
||||||
const INT *RESTRICT bandOffset,
|
const INT *RESTRICT bandOffset,
|
||||||
INT *RESTRICT sfbMaxScaleSpec,
|
INT *RESTRICT sfbMaxScaleSpec,
|
||||||
const INT numBands)
|
const INT numBands) {
|
||||||
{
|
|
||||||
INT i, j;
|
INT i, j;
|
||||||
FIXP_DBL maxSpc, tmp;
|
FIXP_DBL maxSpc, tmp;
|
||||||
|
|
||||||
for (i = 0; i < numBands; i++) {
|
for (i = 0; i < numBands; i++) {
|
||||||
maxSpc = (FIXP_DBL)0;
|
maxSpc = (FIXP_DBL)0;
|
||||||
|
|
||||||
|
DWORD_ALIGNED(mdctSpectrum);
|
||||||
|
|
||||||
for (j = bandOffset[i]; j < bandOffset[i + 1]; j++) {
|
for (j = bandOffset[i]; j < bandOffset[i + 1]; j++) {
|
||||||
tmp = fixp_abs(mdctSpectrum[j]);
|
tmp = fixp_abs(mdctSpectrum[j]);
|
||||||
maxSpc = fixMax(maxSpc, tmp);
|
maxSpc = fixMax(maxSpc, tmp);
|
||||||
}
|
}
|
||||||
sfbMaxScaleSpec[i] = (maxSpc==(FIXP_DBL)0) ? (DFRACT_BITS-2) : CntLeadingZeros(maxSpc)-1;
|
j = CntLeadingZeros(maxSpc) - 1;
|
||||||
/* CountLeadingBits() is not necessary here since test value is always > 0 */
|
sfbMaxScaleSpec[i] = fixMin((DFRACT_BITS - 2), j);
|
||||||
|
/* CountLeadingBits() is not necessary here since test value is always > 0
|
||||||
|
*/
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -124,14 +138,13 @@ FDKaacEnc_CalcSfbMaxScaleSpec(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|||||||
output:
|
output:
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
FIXP_DBL
|
FIXP_DBL
|
||||||
FDKaacEnc_CheckBandEnergyOptim(const FIXP_DBL *RESTRICT mdctSpectrum,
|
FDKaacEnc_CheckBandEnergyOptim(const FIXP_DBL *const RESTRICT mdctSpectrum,
|
||||||
INT *RESTRICT sfbMaxScaleSpec,
|
const INT *const RESTRICT sfbMaxScaleSpec,
|
||||||
const INT *RESTRICT bandOffset,
|
const INT *const RESTRICT bandOffset,
|
||||||
const INT numBands,
|
const INT numBands,
|
||||||
FIXP_DBL *RESTRICT bandEnergy,
|
FIXP_DBL *RESTRICT bandEnergy,
|
||||||
FIXP_DBL *RESTRICT bandEnergyLdData,
|
FIXP_DBL *RESTRICT bandEnergyLdData,
|
||||||
INT minSpecShift)
|
const INT minSpecShift) {
|
||||||
{
|
|
||||||
INT i, j, scale, nr = 0;
|
INT i, j, scale, nr = 0;
|
||||||
FIXP_DBL maxNrgLd = FL2FXCONST_DBL(-1.0f);
|
FIXP_DBL maxNrgLd = FL2FXCONST_DBL(-1.0f);
|
||||||
FIXP_DBL maxNrg = 0;
|
FIXP_DBL maxNrg = 0;
|
||||||
@ -140,6 +153,9 @@ FDKaacEnc_CheckBandEnergyOptim(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|||||||
for (i = 0; i < numBands; i++) {
|
for (i = 0; i < numBands; i++) {
|
||||||
scale = fixMax(0, sfbMaxScaleSpec[i] - 4);
|
scale = fixMax(0, sfbMaxScaleSpec[i] - 4);
|
||||||
FIXP_DBL tmp = 0;
|
FIXP_DBL tmp = 0;
|
||||||
|
|
||||||
|
DWORD_ALIGNED(mdctSpectrum);
|
||||||
|
|
||||||
for (j = bandOffset[i]; j < bandOffset[i + 1]; j++) {
|
for (j = bandOffset[i]; j < bandOffset[i + 1]; j++) {
|
||||||
spec = mdctSpectrum[j] << scale;
|
spec = mdctSpectrum[j] << scale;
|
||||||
tmp = fPow2AddDiv2(tmp, spec);
|
tmp = fPow2AddDiv2(tmp, spec);
|
||||||
@ -173,23 +189,23 @@ FDKaacEnc_CheckBandEnergyOptim(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|||||||
input:
|
input:
|
||||||
output:
|
output:
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
INT
|
INT FDKaacEnc_CalcBandEnergyOptimLong(const FIXP_DBL *RESTRICT mdctSpectrum,
|
||||||
FDKaacEnc_CalcBandEnergyOptimLong(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|
||||||
INT *RESTRICT sfbMaxScaleSpec,
|
INT *RESTRICT sfbMaxScaleSpec,
|
||||||
const INT *RESTRICT bandOffset,
|
const INT *RESTRICT bandOffset,
|
||||||
const INT numBands,
|
const INT numBands,
|
||||||
FIXP_DBL *RESTRICT bandEnergy,
|
FIXP_DBL *RESTRICT bandEnergy,
|
||||||
FIXP_DBL *RESTRICT bandEnergyLdData)
|
FIXP_DBL *RESTRICT bandEnergyLdData) {
|
||||||
{
|
|
||||||
INT i, j, shiftBits = 0;
|
INT i, j, shiftBits = 0;
|
||||||
FIXP_DBL maxNrgLd = FL2FXCONST_DBL(0.0f);
|
FIXP_DBL maxNrgLd = FL2FXCONST_DBL(0.0f);
|
||||||
|
|
||||||
FIXP_DBL spec;
|
FIXP_DBL spec;
|
||||||
|
|
||||||
for (i = 0; i < numBands; i++) {
|
for (i = 0; i < numBands; i++) {
|
||||||
INT leadingBits = sfbMaxScaleSpec[i]-4; /* max sfbWidth = 96 ; 2^7=128 => 7/2 = 4 (spc*spc) */
|
INT leadingBits = sfbMaxScaleSpec[i] -
|
||||||
|
4; /* max sfbWidth = 96 ; 2^7=128 => 7/2 = 4 (spc*spc) */
|
||||||
FIXP_DBL tmp = FL2FXCONST_DBL(0.0);
|
FIXP_DBL tmp = FL2FXCONST_DBL(0.0);
|
||||||
/* don't use scaleValue() here, it increases workload quite sufficiently... */
|
/* don't use scaleValue() here, it increases workload quite sufficiently...
|
||||||
|
*/
|
||||||
if (leadingBits >= 0) {
|
if (leadingBits >= 0) {
|
||||||
for (j = bandOffset[i]; j < bandOffset[i + 1]; j++) {
|
for (j = bandOffset[i]; j < bandOffset[i + 1]; j++) {
|
||||||
spec = mdctSpectrum[j] << leadingBits;
|
spec = mdctSpectrum[j] << leadingBits;
|
||||||
@ -210,31 +226,28 @@ FDKaacEnc_CalcBandEnergyOptimLong(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|||||||
for (i = numBands; i-- != 0;) {
|
for (i = numBands; i-- != 0;) {
|
||||||
FIXP_DBL scaleDiff = (sfbMaxScaleSpec[i] - 4) * FL2FXCONST_DBL(2.0 / 64);
|
FIXP_DBL scaleDiff = (sfbMaxScaleSpec[i] - 4) * FL2FXCONST_DBL(2.0 / 64);
|
||||||
|
|
||||||
bandEnergyLdData[i] = (bandEnergyLdData[i] >= ((FL2FXCONST_DBL(-1.f)>>1) + (scaleDiff>>1)))
|
bandEnergyLdData[i] = (bandEnergyLdData[i] >=
|
||||||
? bandEnergyLdData[i]-scaleDiff : FL2FXCONST_DBL(-1.f);
|
((FL2FXCONST_DBL(-1.f) >> 1) + (scaleDiff >> 1)))
|
||||||
|
? bandEnergyLdData[i] - scaleDiff
|
||||||
|
: FL2FXCONST_DBL(-1.f);
|
||||||
/* find maxNrgLd */
|
/* find maxNrgLd */
|
||||||
maxNrgLd = fixMax(maxNrgLd, bandEnergyLdData[i]);
|
maxNrgLd = fixMax(maxNrgLd, bandEnergyLdData[i]);
|
||||||
}
|
}
|
||||||
|
|
||||||
if (maxNrgLd<=(FIXP_DBL)0)
|
if (maxNrgLd <= (FIXP_DBL)0) {
|
||||||
{
|
for (i = numBands; i-- != 0;) {
|
||||||
for(i=numBands; i--!=0; )
|
|
||||||
{
|
|
||||||
INT scale = fixMin((sfbMaxScaleSpec[i] - 4) << 1, (DFRACT_BITS - 1));
|
INT scale = fixMin((sfbMaxScaleSpec[i] - 4) << 1, (DFRACT_BITS - 1));
|
||||||
bandEnergy[i] = scaleValue(bandEnergy[i], -scale);
|
bandEnergy[i] = scaleValue(bandEnergy[i], -scale);
|
||||||
}
|
}
|
||||||
return 0;
|
return 0;
|
||||||
}
|
} else { /* scale down NRGs */
|
||||||
else
|
while (maxNrgLd > FL2FXCONST_DBL(0.0f)) {
|
||||||
{ /* scale down NRGs */
|
|
||||||
while (maxNrgLd>FL2FXCONST_DBL(0.0f))
|
|
||||||
{
|
|
||||||
maxNrgLd -= FL2FXCONST_DBL(2.0 / 64);
|
maxNrgLd -= FL2FXCONST_DBL(2.0 / 64);
|
||||||
shiftBits++;
|
shiftBits++;
|
||||||
}
|
}
|
||||||
for(i=numBands; i--!=0; )
|
for (i = numBands; i-- != 0;) {
|
||||||
{
|
INT scale = fixMin(((sfbMaxScaleSpec[i] - 4) + shiftBits) << 1,
|
||||||
INT scale = fixMin( ((sfbMaxScaleSpec[i]-4)+shiftBits)<<1, (DFRACT_BITS-1));
|
(DFRACT_BITS - 1));
|
||||||
bandEnergyLdData[i] -= shiftBits * FL2FXCONST_DBL(2.0 / 64);
|
bandEnergyLdData[i] -= shiftBits * FL2FXCONST_DBL(2.0 / 64);
|
||||||
bandEnergy[i] = scaleValue(bandEnergy[i], -scale);
|
bandEnergy[i] = scaleValue(bandEnergy[i], -scale);
|
||||||
}
|
}
|
||||||
@ -242,66 +255,56 @@ FDKaacEnc_CalcBandEnergyOptimLong(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
functionname: FDKaacEnc_CalcBandEnergyOptimShort
|
functionname: FDKaacEnc_CalcBandEnergyOptimShort
|
||||||
description:
|
description:
|
||||||
input:
|
input:
|
||||||
output:
|
output:
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
void
|
void FDKaacEnc_CalcBandEnergyOptimShort(const FIXP_DBL *RESTRICT mdctSpectrum,
|
||||||
FDKaacEnc_CalcBandEnergyOptimShort(const FIXP_DBL *RESTRICT mdctSpectrum,
|
|
||||||
INT *RESTRICT sfbMaxScaleSpec,
|
INT *RESTRICT sfbMaxScaleSpec,
|
||||||
const INT *RESTRICT bandOffset,
|
const INT *RESTRICT bandOffset,
|
||||||
const INT numBands,
|
const INT numBands,
|
||||||
FIXP_DBL *RESTRICT bandEnergy)
|
FIXP_DBL *RESTRICT bandEnergy) {
|
||||||
{
|
|
||||||
INT i, j;
|
INT i, j;
|
||||||
|
|
||||||
for(i=0; i<numBands; i++)
|
for (i = 0; i < numBands; i++) {
|
||||||
{
|
int leadingBits = sfbMaxScaleSpec[i] -
|
||||||
int leadingBits = sfbMaxScaleSpec[i]-3; /* max sfbWidth = 36 ; 2^6=64 => 6/2 = 3 (spc*spc) */
|
3; /* max sfbWidth = 36 ; 2^6=64 => 6/2 = 3 (spc*spc) */
|
||||||
FIXP_DBL tmp = FL2FXCONST_DBL(0.0);
|
FIXP_DBL tmp = FL2FXCONST_DBL(0.0);
|
||||||
for (j=bandOffset[i];j<bandOffset[i+1];j++)
|
for (j = bandOffset[i]; j < bandOffset[i + 1]; j++) {
|
||||||
{
|
|
||||||
FIXP_DBL spec = scaleValue(mdctSpectrum[j], leadingBits);
|
FIXP_DBL spec = scaleValue(mdctSpectrum[j], leadingBits);
|
||||||
tmp = fPow2AddDiv2(tmp, spec);
|
tmp = fPow2AddDiv2(tmp, spec);
|
||||||
}
|
}
|
||||||
bandEnergy[i] = tmp;
|
bandEnergy[i] = tmp;
|
||||||
}
|
}
|
||||||
|
|
||||||
for(i=0; i<numBands; i++)
|
for (i = 0; i < numBands; i++) {
|
||||||
{
|
INT scale = (2 * (sfbMaxScaleSpec[i] - 3)) -
|
||||||
INT scale = (2*(sfbMaxScaleSpec[i]-3))-1; /* max sfbWidth = 36 ; 2^6=64 => 6/2 = 3 (spc*spc) */
|
1; /* max sfbWidth = 36 ; 2^6=64 => 6/2 = 3 (spc*spc) */
|
||||||
scale = fixMax(fixMin(scale, (DFRACT_BITS - 1)), -(DFRACT_BITS - 1));
|
scale = fixMax(fixMin(scale, (DFRACT_BITS - 1)), -(DFRACT_BITS - 1));
|
||||||
bandEnergy[i] = scaleValueSaturate(bandEnergy[i], -scale);
|
bandEnergy[i] = scaleValueSaturate(bandEnergy[i], -scale);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
functionname: FDKaacEnc_CalcBandNrgMSOpt
|
functionname: FDKaacEnc_CalcBandNrgMSOpt
|
||||||
description:
|
description:
|
||||||
input:
|
input:
|
||||||
output:
|
output:
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
void FDKaacEnc_CalcBandNrgMSOpt(const FIXP_DBL *RESTRICT mdctSpectrumLeft,
|
void FDKaacEnc_CalcBandNrgMSOpt(
|
||||||
|
const FIXP_DBL *RESTRICT mdctSpectrumLeft,
|
||||||
const FIXP_DBL *RESTRICT mdctSpectrumRight,
|
const FIXP_DBL *RESTRICT mdctSpectrumRight,
|
||||||
INT *RESTRICT sfbMaxScaleSpecLeft,
|
INT *RESTRICT sfbMaxScaleSpecLeft, INT *RESTRICT sfbMaxScaleSpecRight,
|
||||||
INT *RESTRICT sfbMaxScaleSpecRight,
|
const INT *RESTRICT bandOffset, const INT numBands,
|
||||||
const INT *RESTRICT bandOffset,
|
FIXP_DBL *RESTRICT bandEnergyMid, FIXP_DBL *RESTRICT bandEnergySide,
|
||||||
const INT numBands,
|
INT calcLdData, FIXP_DBL *RESTRICT bandEnergyMidLdData,
|
||||||
FIXP_DBL *RESTRICT bandEnergyMid,
|
FIXP_DBL *RESTRICT bandEnergySideLdData) {
|
||||||
FIXP_DBL *RESTRICT bandEnergySide,
|
|
||||||
INT calcLdData,
|
|
||||||
FIXP_DBL *RESTRICT bandEnergyMidLdData,
|
|
||||||
FIXP_DBL *RESTRICT bandEnergySideLdData)
|
|
||||||
{
|
|
||||||
INT i, j, minScale;
|
INT i, j, minScale;
|
||||||
FIXP_DBL NrgMid, NrgSide, specm, specs;
|
FIXP_DBL NrgMid, NrgSide, specm, specs;
|
||||||
|
|
||||||
for (i = 0; i < numBands; i++) {
|
for (i = 0; i < numBands; i++) {
|
||||||
|
|
||||||
NrgMid = NrgSide = FL2FXCONST_DBL(0.0);
|
NrgMid = NrgSide = FL2FXCONST_DBL(0.0);
|
||||||
minScale = fixMin(sfbMaxScaleSpecLeft[i], sfbMaxScaleSpecRight[i]) - 4;
|
minScale = fixMin(sfbMaxScaleSpecLeft[i], sfbMaxScaleSpecRight[i]) - 4;
|
||||||
minScale = fixMax(0, minScale);
|
minScale = fixMax(0, minScale);
|
||||||
@ -325,8 +328,8 @@ void FDKaacEnc_CalcBandNrgMSOpt(const FIXP_DBL *RESTRICT mdctSpectrumLeft,
|
|||||||
NrgSide = fPow2AddDiv2(NrgSide, specs);
|
NrgSide = fPow2AddDiv2(NrgSide, specs);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
bandEnergyMid[i] = NrgMid<<1;
|
bandEnergyMid[i] = fMin(NrgMid, (FIXP_DBL)MAXVAL_DBL >> 1) << 1;
|
||||||
bandEnergySide[i] = NrgSide<<1;
|
bandEnergySide[i] = fMin(NrgSide, (FIXP_DBL)MAXVAL_DBL >> 1) << 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (calcLdData) {
|
if (calcLdData) {
|
||||||
@ -334,15 +337,14 @@ void FDKaacEnc_CalcBandNrgMSOpt(const FIXP_DBL *RESTRICT mdctSpectrumLeft,
|
|||||||
LdDataVector(bandEnergySide, bandEnergySideLdData, numBands);
|
LdDataVector(bandEnergySide, bandEnergySideLdData, numBands);
|
||||||
}
|
}
|
||||||
|
|
||||||
for (i=0; i<numBands; i++)
|
for (i = 0; i < numBands; i++) {
|
||||||
{
|
minScale = fixMin(sfbMaxScaleSpecLeft[i], sfbMaxScaleSpecRight[i]);
|
||||||
INT minScale = fixMin(sfbMaxScaleSpecLeft[i], sfbMaxScaleSpecRight[i]);
|
|
||||||
INT scale = fixMax(0, 2 * (minScale - 4));
|
INT scale = fixMax(0, 2 * (minScale - 4));
|
||||||
|
|
||||||
if (calcLdData)
|
if (calcLdData) {
|
||||||
{
|
/* using the minimal scaling of left and right channel can cause very
|
||||||
/* using the minimal scaling of left and right channel can cause very small energies;
|
small energies; check ldNrg before subtract scaling multiplication:
|
||||||
check ldNrg before subtract scaling multiplication: fract*INT we don't need fMult */
|
fract*INT we don't need fMult */
|
||||||
|
|
||||||
int minus = scale * FL2FXCONST_DBL(1.0 / 64);
|
int minus = scale * FL2FXCONST_DBL(1.0 / 64);
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,71 +90,53 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Author(s): M. Werner
|
Author(s): M. Werner
|
||||||
|
|
||||||
Description: Band/Line energy calculation
|
Description: Band/Line energy calculation
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef _BAND_NRG_H
|
#ifndef BAND_NRG_H
|
||||||
#define _BAND_NRG_H
|
#define BAND_NRG_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
|
void FDKaacEnc_CalcSfbMaxScaleSpec(const FIXP_DBL *mdctSpectrum,
|
||||||
void
|
const INT *bandOffset, INT *sfbMaxScaleSpec,
|
||||||
FDKaacEnc_CalcSfbMaxScaleSpec(
|
const INT numBands);
|
||||||
const FIXP_DBL *mdctSpectrum,
|
|
||||||
const INT *bandOffset,
|
|
||||||
INT *sfbMaxScaleSpec,
|
|
||||||
const INT numBands
|
|
||||||
);
|
|
||||||
|
|
||||||
FIXP_DBL
|
FIXP_DBL
|
||||||
FDKaacEnc_CheckBandEnergyOptim(
|
FDKaacEnc_CheckBandEnergyOptim(const FIXP_DBL *const RESTRICT mdctSpectrum,
|
||||||
const FIXP_DBL *mdctSpectrum,
|
const INT *const RESTRICT sfbMaxScaleSpec,
|
||||||
INT *sfbMaxScaleSpec,
|
const INT *const RESTRICT bandOffset,
|
||||||
const INT *bandOffset,
|
|
||||||
const INT numBands,
|
const INT numBands,
|
||||||
|
FIXP_DBL *RESTRICT bandEnergy,
|
||||||
|
FIXP_DBL *RESTRICT bandEnergyLdData,
|
||||||
|
const INT minSpecShift);
|
||||||
|
|
||||||
|
INT FDKaacEnc_CalcBandEnergyOptimLong(const FIXP_DBL *mdctSpectrum,
|
||||||
|
INT *sfbMaxScaleSpec,
|
||||||
|
const INT *bandOffset, const INT numBands,
|
||||||
FIXP_DBL *bandEnergy,
|
FIXP_DBL *bandEnergy,
|
||||||
FIXP_DBL *bandEnergyLdData,
|
FIXP_DBL *bandEnergyLdData);
|
||||||
INT minSpecShift
|
|
||||||
);
|
|
||||||
|
|
||||||
INT
|
void FDKaacEnc_CalcBandEnergyOptimShort(const FIXP_DBL *mdctSpectrum,
|
||||||
FDKaacEnc_CalcBandEnergyOptimLong(
|
|
||||||
const FIXP_DBL *mdctSpectrum,
|
|
||||||
INT *sfbMaxScaleSpec,
|
INT *sfbMaxScaleSpec,
|
||||||
const INT *bandOffset,
|
const INT *bandOffset,
|
||||||
const INT numBands,
|
const INT numBands,
|
||||||
FIXP_DBL *bandEnergy,
|
FIXP_DBL *bandEnergy);
|
||||||
FIXP_DBL *bandEnergyLdData
|
|
||||||
);
|
|
||||||
|
|
||||||
void
|
|
||||||
FDKaacEnc_CalcBandEnergyOptimShort(
|
|
||||||
const FIXP_DBL *mdctSpectrum,
|
|
||||||
INT *sfbMaxScaleSpec,
|
|
||||||
const INT *bandOffset,
|
|
||||||
const INT numBands,
|
|
||||||
FIXP_DBL *bandEnergy
|
|
||||||
);
|
|
||||||
|
|
||||||
|
|
||||||
void FDKaacEnc_CalcBandNrgMSOpt(
|
void FDKaacEnc_CalcBandNrgMSOpt(
|
||||||
const FIXP_DBL *RESTRICT mdctSpectrumLeft,
|
const FIXP_DBL *RESTRICT mdctSpectrumLeft,
|
||||||
const FIXP_DBL *RESTRICT mdctSpectrumRight,
|
const FIXP_DBL *RESTRICT mdctSpectrumRight,
|
||||||
INT *RESTRICT sfbMaxScaleSpecLeft,
|
INT *RESTRICT sfbMaxScaleSpecLeft, INT *RESTRICT sfbMaxScaleSpecRight,
|
||||||
INT *RESTRICT sfbMaxScaleSpecRight,
|
const INT *RESTRICT bandOffset, const INT numBands,
|
||||||
const INT *RESTRICT bandOffset,
|
FIXP_DBL *RESTRICT bandEnergyMid, FIXP_DBL *RESTRICT bandEnergySide,
|
||||||
const INT numBands,
|
INT calcLdData, FIXP_DBL *RESTRICT bandEnergyMidLdData,
|
||||||
FIXP_DBL *RESTRICT bandEnergyMid,
|
|
||||||
FIXP_DBL *RESTRICT bandEnergySide,
|
|
||||||
INT calcLdData,
|
|
||||||
FIXP_DBL *RESTRICT bandEnergyMidLdData,
|
|
||||||
FIXP_DBL *RESTRICT bandEnergySideLdData);
|
FIXP_DBL *RESTRICT bandEnergySideLdData);
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2015 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/************************* Fast MPEG AAC Audio Encoder **********************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Schug / A. Groeschel
|
Author(s): M. Schug / A. Groeschel
|
||||||
contents/description: bandwidth expert
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: bandwidth expert
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "channel_map.h"
|
#include "channel_map.h"
|
||||||
#include "bandwidth.h"
|
#include "bandwidth.h"
|
||||||
@ -100,80 +112,36 @@ typedef struct{
|
|||||||
} BANDWIDTH_TAB;
|
} BANDWIDTH_TAB;
|
||||||
|
|
||||||
static const BANDWIDTH_TAB bandWidthTable[] = {
|
static const BANDWIDTH_TAB bandWidthTable[] = {
|
||||||
{0, 3700, 5000},
|
{0, 3700, 5000}, {12000, 5000, 6400}, {20000, 6900, 9640},
|
||||||
{12000, 5000, 6400},
|
{28000, 9600, 13050}, {40000, 12060, 14260}, {56000, 13950, 15500},
|
||||||
{20000, 6900, 9640},
|
{72000, 14200, 16120}, {96000, 17000, 17000}, {576001, 17000, 17000}};
|
||||||
{28000, 9600, 13050},
|
|
||||||
{40000, 12060, 14260},
|
|
||||||
{56000, 13950, 15500},
|
|
||||||
{72000, 14200, 16120},
|
|
||||||
{96000, 17000, 17000},
|
|
||||||
{576001,17000, 17000}
|
|
||||||
};
|
|
||||||
|
|
||||||
|
|
||||||
static const BANDWIDTH_TAB bandWidthTable_LD_22050[] = {
|
static const BANDWIDTH_TAB bandWidthTable_LD_22050[] = {
|
||||||
{ 8000, 2000, 2400},
|
{8000, 2000, 2400}, {12000, 2500, 2700}, {16000, 3300, 3100},
|
||||||
{12000, 2500, 2700},
|
{24000, 6250, 7200}, {32000, 9200, 10500}, {40000, 16000, 16000},
|
||||||
{16000, 3300, 3100},
|
{48000, 16000, 16000}, {282241, 16000, 16000}};
|
||||||
{24000, 6250, 7200},
|
|
||||||
{32000, 9200, 10500},
|
|
||||||
{40000, 16000, 16000},
|
|
||||||
{48000, 16000, 16000},
|
|
||||||
{360001, 16000, 16000}
|
|
||||||
};
|
|
||||||
|
|
||||||
static const BANDWIDTH_TAB bandWidthTable_LD_24000[] = {
|
static const BANDWIDTH_TAB bandWidthTable_LD_24000[] = {
|
||||||
{ 8000, 2000, 2000},
|
{8000, 2000, 2000}, {12000, 2000, 2300}, {16000, 2200, 2500},
|
||||||
{12000, 2000, 2300},
|
{24000, 5650, 7200}, {32000, 11600, 12000}, {40000, 12000, 16000},
|
||||||
{16000, 2200, 2500},
|
{48000, 16000, 16000}, {64000, 16000, 16000}, {307201, 16000, 16000}};
|
||||||
{24000, 5650, 7200},
|
|
||||||
{32000, 11600, 12000},
|
|
||||||
{40000, 12000, 16000},
|
|
||||||
{48000, 16000, 16000},
|
|
||||||
{64000, 16000, 16000},
|
|
||||||
{360001, 16000, 16000}
|
|
||||||
};
|
|
||||||
|
|
||||||
static const BANDWIDTH_TAB bandWidthTable_LD_32000[] = {
|
static const BANDWIDTH_TAB bandWidthTable_LD_32000[] = {
|
||||||
{ 8000, 2000, 2000},
|
{8000, 2000, 2000}, {12000, 2000, 2000}, {24000, 4250, 7200},
|
||||||
{12000, 2000, 2000},
|
{32000, 8400, 9000}, {40000, 9400, 11300}, {48000, 11900, 14700},
|
||||||
{24000, 4250, 7200},
|
{64000, 14800, 16000}, {76000, 16000, 16000}, {409601, 16000, 16000}};
|
||||||
{32000, 8400, 9000},
|
|
||||||
{40000, 9400, 11300},
|
|
||||||
{48000, 11900, 14700},
|
|
||||||
{64000, 14800, 16000},
|
|
||||||
{76000, 16000, 16000},
|
|
||||||
{360001, 16000, 16000}
|
|
||||||
};
|
|
||||||
|
|
||||||
static const BANDWIDTH_TAB bandWidthTable_LD_44100[] = {
|
static const BANDWIDTH_TAB bandWidthTable_LD_44100[] = {
|
||||||
{ 8000, 2000, 2000},
|
{8000, 2000, 2000}, {24000, 2000, 2000}, {32000, 4400, 5700},
|
||||||
{24000, 2000, 2000},
|
{40000, 7400, 8800}, {48000, 9000, 10700}, {56000, 11000, 12900},
|
||||||
{32000, 4400, 5700},
|
{64000, 14400, 15500}, {80000, 16000, 16200}, {96000, 16500, 16000},
|
||||||
{40000, 7400, 8800},
|
{128000, 16000, 16000}, {564481, 16000, 16000}};
|
||||||
{48000, 9000, 10700},
|
|
||||||
{56000, 11000, 12900},
|
|
||||||
{64000, 14400, 15500},
|
|
||||||
{80000, 16000, 16200},
|
|
||||||
{96000, 16500, 16000},
|
|
||||||
{128000, 16000, 16000},
|
|
||||||
{360001, 16000, 16000}
|
|
||||||
};
|
|
||||||
|
|
||||||
static const BANDWIDTH_TAB bandWidthTable_LD_48000[] = {
|
static const BANDWIDTH_TAB bandWidthTable_LD_48000[] = {
|
||||||
{ 8000, 2000, 2000},
|
{8000, 2000, 2000}, {24000, 2000, 2000}, {32000, 4400, 5700},
|
||||||
{24000, 2000, 2000},
|
{40000, 7400, 8800}, {48000, 9000, 10700}, {56000, 11000, 12800},
|
||||||
{32000, 4400, 5700},
|
{64000, 14300, 15400}, {80000, 16000, 16200}, {96000, 16500, 16000},
|
||||||
{40000, 7400, 8800},
|
{128000, 16000, 16000}, {614401, 16000, 16000}};
|
||||||
{48000, 9000, 10700},
|
|
||||||
{56000, 11000, 12800},
|
|
||||||
{64000, 14300, 15400},
|
|
||||||
{80000, 16000, 16200},
|
|
||||||
{96000, 16500, 16000},
|
|
||||||
{128000, 16000, 16000},
|
|
||||||
{360001, 16000, 16000}
|
|
||||||
};
|
|
||||||
|
|
||||||
typedef struct {
|
typedef struct {
|
||||||
AACENC_BITRATE_MODE bitrateMode;
|
AACENC_BITRATE_MODE bitrateMode;
|
||||||
@ -193,21 +161,22 @@ static const BANDWIDTH_TAB_VBR bandWidthTableVBR[]= {
|
|||||||
|
|
||||||
};
|
};
|
||||||
|
|
||||||
static INT GetBandwidthEntry(
|
static INT GetBandwidthEntry(const INT frameLength, const INT sampleRate,
|
||||||
const INT frameLength,
|
const INT chanBitRate, const INT entryNo) {
|
||||||
const INT sampleRate,
|
|
||||||
const INT chanBitRate,
|
|
||||||
const INT entryNo)
|
|
||||||
{
|
|
||||||
INT bandwidth = -1;
|
INT bandwidth = -1;
|
||||||
const BANDWIDTH_TAB *pBwTab = NULL;
|
const BANDWIDTH_TAB *pBwTab = NULL;
|
||||||
INT bwTabSize = 0;
|
INT bwTabSize = 0;
|
||||||
|
|
||||||
switch (frameLength) {
|
switch (frameLength) {
|
||||||
|
case 960:
|
||||||
case 1024:
|
case 1024:
|
||||||
pBwTab = bandWidthTable;
|
pBwTab = bandWidthTable;
|
||||||
bwTabSize = sizeof(bandWidthTable) / sizeof(BANDWIDTH_TAB);
|
bwTabSize = sizeof(bandWidthTable) / sizeof(BANDWIDTH_TAB);
|
||||||
break;
|
break;
|
||||||
|
case 120:
|
||||||
|
case 128:
|
||||||
|
case 240:
|
||||||
|
case 256:
|
||||||
case 480:
|
case 480:
|
||||||
case 512:
|
case 512:
|
||||||
switch (sampleRate) {
|
switch (sampleRate) {
|
||||||
@ -227,7 +196,7 @@ static INT GetBandwidthEntry(
|
|||||||
pBwTab = bandWidthTable_LD_32000;
|
pBwTab = bandWidthTable_LD_32000;
|
||||||
bwTabSize = sizeof(bandWidthTable_LD_32000) / sizeof(BANDWIDTH_TAB);
|
bwTabSize = sizeof(bandWidthTable_LD_32000) / sizeof(BANDWIDTH_TAB);
|
||||||
break;
|
break;
|
||||||
case (44100):
|
case 44100:
|
||||||
pBwTab = bandWidthTable_LD_44100;
|
pBwTab = bandWidthTable_LD_44100;
|
||||||
bwTabSize = sizeof(bandWidthTable_LD_44100) / sizeof(BANDWIDTH_TAB);
|
bwTabSize = sizeof(bandWidthTable_LD_44100) / sizeof(BANDWIDTH_TAB);
|
||||||
break;
|
break;
|
||||||
@ -249,27 +218,34 @@ static INT GetBandwidthEntry(
|
|||||||
int i;
|
int i;
|
||||||
for (i = 0; i < bwTabSize - 1; i++) {
|
for (i = 0; i < bwTabSize - 1; i++) {
|
||||||
if (chanBitRate >= pBwTab[i].chanBitRate &&
|
if (chanBitRate >= pBwTab[i].chanBitRate &&
|
||||||
chanBitRate < pBwTab[i+1].chanBitRate)
|
chanBitRate < pBwTab[i + 1].chanBitRate) {
|
||||||
{
|
|
||||||
switch (frameLength) {
|
switch (frameLength) {
|
||||||
|
case 960:
|
||||||
case 1024:
|
case 1024:
|
||||||
bandwidth = (entryNo==0)
|
bandwidth = (entryNo == 0) ? pBwTab[i].bandWidthMono
|
||||||
? pBwTab[i].bandWidthMono
|
|
||||||
: pBwTab[i].bandWidth2AndMoreChan;
|
: pBwTab[i].bandWidth2AndMoreChan;
|
||||||
break;
|
break;
|
||||||
|
case 120:
|
||||||
|
case 128:
|
||||||
|
case 240:
|
||||||
|
case 256:
|
||||||
case 480:
|
case 480:
|
||||||
case 512:
|
case 512: {
|
||||||
{
|
|
||||||
INT q_res = 0;
|
INT q_res = 0;
|
||||||
INT startBw = (entryNo==0) ? pBwTab[i ].bandWidthMono : pBwTab[i ].bandWidth2AndMoreChan;
|
INT startBw = (entryNo == 0) ? pBwTab[i].bandWidthMono
|
||||||
INT endBw = (entryNo==0) ? pBwTab[i+1].bandWidthMono : pBwTab[i+1].bandWidth2AndMoreChan;
|
: pBwTab[i].bandWidth2AndMoreChan;
|
||||||
|
INT endBw = (entryNo == 0) ? pBwTab[i + 1].bandWidthMono
|
||||||
|
: pBwTab[i + 1].bandWidth2AndMoreChan;
|
||||||
INT startBr = pBwTab[i].chanBitRate;
|
INT startBr = pBwTab[i].chanBitRate;
|
||||||
INT endBr = pBwTab[i + 1].chanBitRate;
|
INT endBr = pBwTab[i + 1].chanBitRate;
|
||||||
|
|
||||||
FIXP_DBL bwFac_fix = fDivNorm(chanBitRate-startBr, endBr-startBr, &q_res);
|
FIXP_DBL bwFac_fix =
|
||||||
bandwidth = (INT)scaleValue(fMult(bwFac_fix, (FIXP_DBL)(endBw-startBw)),q_res) + startBw;
|
fDivNorm(chanBitRate - startBr, endBr - startBr, &q_res);
|
||||||
}
|
bandwidth =
|
||||||
break;
|
(INT)scaleValue(fMult(bwFac_fix, (FIXP_DBL)(endBw - startBw)),
|
||||||
|
q_res) +
|
||||||
|
startBw;
|
||||||
|
} break;
|
||||||
default:
|
default:
|
||||||
bandwidth = -1;
|
bandwidth = -1;
|
||||||
}
|
}
|
||||||
@ -281,20 +257,14 @@ static INT GetBandwidthEntry(
|
|||||||
return bandwidth;
|
return bandwidth;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
AAC_ENCODER_ERROR FDKaacEnc_DetermineBandWidth(
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_DetermineBandWidth(INT* bandWidth,
|
const INT proposedBandWidth, const INT bitrate,
|
||||||
INT proposedBandWidth,
|
const AACENC_BITRATE_MODE bitrateMode, const INT sampleRate,
|
||||||
INT bitrate,
|
const INT frameLength, const CHANNEL_MAPPING *const cm,
|
||||||
AACENC_BITRATE_MODE bitrateMode,
|
const CHANNEL_MODE encoderMode, INT *const bandWidth) {
|
||||||
INT sampleRate,
|
|
||||||
INT frameLength,
|
|
||||||
CHANNEL_MAPPING* cm,
|
|
||||||
CHANNEL_MODE encoderMode)
|
|
||||||
{
|
|
||||||
AAC_ENCODER_ERROR ErrorStatus = AAC_ENC_OK;
|
AAC_ENCODER_ERROR ErrorStatus = AAC_ENC_OK;
|
||||||
INT chanBitRate = bitrate/cm->nChannels;
|
INT chanBitRate = bitrate / cm->nChannelsEff;
|
||||||
|
|
||||||
/* vbr */
|
|
||||||
switch (bitrateMode) {
|
switch (bitrateMode) {
|
||||||
case AACENC_BR_MODE_VBR_1:
|
case AACENC_BR_MODE_VBR_1:
|
||||||
case AACENC_BR_MODE_VBR_2:
|
case AACENC_BR_MODE_VBR_2:
|
||||||
@ -315,9 +285,12 @@ AAC_ENCODER_ERROR FDKaacEnc_DetermineBandWidth(INT* bandWidth,
|
|||||||
case MODE_1_2_1:
|
case MODE_1_2_1:
|
||||||
case MODE_1_2_2:
|
case MODE_1_2_2:
|
||||||
case MODE_1_2_2_1:
|
case MODE_1_2_2_1:
|
||||||
|
case MODE_6_1:
|
||||||
case MODE_1_2_2_2_1:
|
case MODE_1_2_2_2_1:
|
||||||
case MODE_7_1_REAR_SURROUND:
|
case MODE_7_1_REAR_SURROUND:
|
||||||
case MODE_7_1_FRONT_CENTER:
|
case MODE_7_1_FRONT_CENTER:
|
||||||
|
case MODE_7_1_BACK:
|
||||||
|
case MODE_7_1_TOP_FRONT:
|
||||||
*bandWidth = bandWidthTableVBR[bitrateMode].bandWidth2AndMoreChan;
|
*bandWidth = bandWidthTableVBR[bitrateMode].bandWidth2AndMoreChan;
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
@ -331,15 +304,14 @@ AAC_ENCODER_ERROR FDKaacEnc_DetermineBandWidth(INT* bandWidth,
|
|||||||
|
|
||||||
/* bandwidth limiting */
|
/* bandwidth limiting */
|
||||||
if (proposedBandWidth != 0) {
|
if (proposedBandWidth != 0) {
|
||||||
*bandWidth = FDKmin(proposedBandWidth, FDKmin(20000, sampleRate>>1));
|
*bandWidth = fMin(proposedBandWidth, fMin(20000, sampleRate >> 1));
|
||||||
}
|
} else { /* search reasonable bandwidth */
|
||||||
else { /* search reasonable bandwidth */
|
|
||||||
|
|
||||||
int entryNo = 0;
|
int entryNo = 0;
|
||||||
|
|
||||||
switch (encoderMode) {
|
switch (encoderMode) {
|
||||||
case MODE_1: /* mono */
|
case MODE_1: /* mono */
|
||||||
entryNo = 0; /* use mono bandwith settings */
|
entryNo = 0; /* use mono bandwidth settings */
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case MODE_2: /* stereo */
|
case MODE_2: /* stereo */
|
||||||
@ -347,33 +319,42 @@ AAC_ENCODER_ERROR FDKaacEnc_DetermineBandWidth(INT* bandWidth,
|
|||||||
case MODE_1_2_1: /* sce + cpe + sce */
|
case MODE_1_2_1: /* sce + cpe + sce */
|
||||||
case MODE_1_2_2: /* sce + cpe + cpe */
|
case MODE_1_2_2: /* sce + cpe + cpe */
|
||||||
case MODE_1_2_2_1: /* (5.1) sce + cpe + cpe + lfe */
|
case MODE_1_2_2_1: /* (5.1) sce + cpe + cpe + lfe */
|
||||||
case MODE_1_2_2_2_1: /* (7.1) sce + cpe + cpe + cpe + lfe */
|
case MODE_6_1:
|
||||||
|
case MODE_1_2_2_2_1:
|
||||||
case MODE_7_1_REAR_SURROUND:
|
case MODE_7_1_REAR_SURROUND:
|
||||||
case MODE_7_1_FRONT_CENTER:
|
case MODE_7_1_FRONT_CENTER:
|
||||||
entryNo = 1; /* use stereo bandwith settings */
|
case MODE_7_1_BACK:
|
||||||
|
case MODE_7_1_TOP_FRONT:
|
||||||
|
entryNo = 1; /* use stereo bandwidth settings */
|
||||||
break;
|
break;
|
||||||
|
|
||||||
default:
|
default:
|
||||||
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
|
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
|
||||||
}
|
}
|
||||||
|
|
||||||
*bandWidth = GetBandwidthEntry(
|
*bandWidth =
|
||||||
frameLength,
|
GetBandwidthEntry(frameLength, sampleRate, chanBitRate, entryNo);
|
||||||
sampleRate,
|
|
||||||
chanBitRate,
|
|
||||||
entryNo);
|
|
||||||
|
|
||||||
if (*bandWidth == -1) {
|
if (*bandWidth == -1) {
|
||||||
|
switch (frameLength) {
|
||||||
|
case 120:
|
||||||
|
case 128:
|
||||||
|
case 240:
|
||||||
|
case 256:
|
||||||
|
*bandWidth = 16000;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
ErrorStatus = AAC_ENC_INVALID_CHANNEL_BITRATE;
|
ErrorStatus = AAC_ENC_INVALID_CHANNEL_BITRATE;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
}
|
||||||
break;
|
break;
|
||||||
default:
|
default:
|
||||||
*bandWidth = 0;
|
*bandWidth = 0;
|
||||||
return AAC_ENC_UNSUPPORTED_BITRATE_MODE;
|
return AAC_ENC_UNSUPPORTED_BITRATE_MODE;
|
||||||
}
|
}
|
||||||
|
|
||||||
*bandWidth = FDKmin(*bandWidth, sampleRate/2);
|
*bandWidth = fMin(*bandWidth, sampleRate / 2);
|
||||||
|
|
||||||
return ErrorStatus;;
|
return ErrorStatus;
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,28 +90,25 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/************************* Fast MPEG AAC Audio Encoder **********************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Schug / A. Groeschel
|
Author(s): M. Schug / A. Groeschel
|
||||||
contents/description: bandwidth expert
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: bandwidth expert
|
||||||
|
|
||||||
#ifndef _BANDWIDTH_H
|
*******************************************************************************/
|
||||||
#define _BANDWIDTH_H
|
|
||||||
|
|
||||||
|
#ifndef BANDWIDTH_H
|
||||||
|
#define BANDWIDTH_H
|
||||||
|
|
||||||
#include "qc_data.h"
|
#include "qc_data.h"
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_DetermineBandWidth(INT* bandWidth,
|
AAC_ENCODER_ERROR FDKaacEnc_DetermineBandWidth(
|
||||||
INT proposedBandwidth,
|
const INT proposedBandWidth, const INT bitrate,
|
||||||
INT bitrate,
|
const AACENC_BITRATE_MODE bitrateMode, const INT sampleRate,
|
||||||
AACENC_BITRATE_MODE bitrateMode,
|
const INT frameLength, const CHANNEL_MAPPING *const cm,
|
||||||
INT sampleRate,
|
const CHANNEL_MODE encoderMode, INT *const bandWidth);
|
||||||
INT frameLength,
|
|
||||||
CHANNEL_MAPPING* cm,
|
|
||||||
CHANNEL_MODE encoderMode);
|
|
||||||
|
|
||||||
#endif /* BANDWIDTH_H */
|
#endif /* BANDWIDTH_H */
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,18 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M.Werner
|
Author(s): M.Werner
|
||||||
contents/description: Huffman Bitcounter & coder
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Huffman Bitcounter & coder
|
||||||
|
|
||||||
#ifndef __BITCOUNT_H
|
*******************************************************************************/
|
||||||
#define __BITCOUNT_H
|
|
||||||
|
|
||||||
|
#ifndef BIT_CNT_H
|
||||||
|
#define BIT_CNT_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
#include "FDK_bitstream.h"
|
#include "FDK_bitstream.h"
|
||||||
@ -167,20 +178,22 @@ enum codeBookLav{
|
|||||||
CODE_BOOK_PNS_LAV = 60
|
CODE_BOOK_PNS_LAV = 60
|
||||||
};
|
};
|
||||||
|
|
||||||
INT FDKaacEnc_bitCount(const SHORT *aQuantSpectrum,
|
INT FDKaacEnc_bitCount(const SHORT *aQuantSpectrum, const INT noOfSpecLines,
|
||||||
const INT noOfSpecLines,
|
INT maxVal, INT *bitCountLut);
|
||||||
INT maxVal,
|
|
||||||
INT *bitCountLut);
|
|
||||||
|
|
||||||
INT FDKaacEnc_countValues(SHORT *values, INT width, INT codeBook);
|
INT FDKaacEnc_countValues(SHORT *values, INT width, INT codeBook);
|
||||||
|
|
||||||
INT FDKaacEnc_codeValues(SHORT *values, INT width, INT codeBook, HANDLE_FDK_BITSTREAM hBitstream);
|
INT FDKaacEnc_codeValues(SHORT *values, INT width, INT codeBook,
|
||||||
|
HANDLE_FDK_BITSTREAM hBitstream);
|
||||||
|
|
||||||
INT FDKaacEnc_codeScalefactorDelta(INT scalefactor, HANDLE_FDK_BITSTREAM hBitstream);
|
INT FDKaacEnc_codeScalefactorDelta(INT scalefactor,
|
||||||
|
HANDLE_FDK_BITSTREAM hBitstream);
|
||||||
|
|
||||||
inline INT FDKaacEnc_bitCountScalefactorDelta(const INT delta)
|
inline INT FDKaacEnc_bitCountScalefactorDelta(const INT delta) {
|
||||||
{
|
FDK_ASSERT((0 <= (delta + CODE_BOOK_SCF_LAV)) &&
|
||||||
FDK_ASSERT( (0 <= (delta+CODE_BOOK_SCF_LAV)) && ((delta+CODE_BOOK_SCF_LAV)<(int)(sizeof(FDKaacEnc_huff_ltabscf)/sizeof((FDKaacEnc_huff_ltabscf[0])))) );
|
((delta + CODE_BOOK_SCF_LAV) <
|
||||||
|
(int)(sizeof(FDKaacEnc_huff_ltabscf) /
|
||||||
|
sizeof((FDKaacEnc_huff_ltabscf[0])))));
|
||||||
return ((INT)FDKaacEnc_huff_ltabscf[delta + CODE_BOOK_SCF_LAV]);
|
return ((INT)FDKaacEnc_huff_ltabscf[delta + CODE_BOOK_SCF_LAV]);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
File diff suppressed because it is too large
Load Diff
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,18 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Werner
|
Author(s): M. Werner
|
||||||
contents/description: Bitstream encoder
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Bitstream encoder
|
||||||
|
|
||||||
#ifndef _BITENC_H
|
*******************************************************************************/
|
||||||
#define _BITENC_H
|
|
||||||
|
|
||||||
|
#ifndef BITENC_H
|
||||||
|
#define BITENC_H
|
||||||
|
|
||||||
#include "qc_data.h"
|
#include "qc_data.h"
|
||||||
#include "aacenc_tns.h"
|
#include "aacenc_tns.h"
|
||||||
@ -109,44 +120,40 @@ typedef enum{
|
|||||||
FIRST_LAY = 1 /* default layer number for AAC nonscalable */
|
FIRST_LAY = 1 /* default layer number for AAC nonscalable */
|
||||||
} _MAX_CONST;
|
} _MAX_CONST;
|
||||||
|
|
||||||
#define BUFFER_MX_HUFFCB_SIZE (32*sizeof(INT)) /* our FDK_bitbuffer needs size of power 2 */
|
#define BUFFER_MX_HUFFCB_SIZE \
|
||||||
|
(32 * sizeof(INT)) /* our FDK_bitbuffer needs size of power 2 */
|
||||||
|
|
||||||
#define EL_ID_BITS (3)
|
#define EL_ID_BITS (3)
|
||||||
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* \brief Arbitrary order bitstream writer. This function can either assemble a bit stream
|
* \brief Arbitrary order bitstream writer. This function can either assemble a
|
||||||
* and write into the bit buffer of hTpEnc or calculate the number of static bits (signal independent)
|
* bit stream and write into the bit buffer of hTpEnc or calculate the number of
|
||||||
* TpEnc handle must be NULL in this case. Or also Calculate the minimum possible number of
|
* static bits (signal independent) TpEnc handle must be NULL in this
|
||||||
* static bits which by disabling all tools e.g. MS, TNS and sbfCnt=0. The minCnt parameter
|
* case. Or also Calculate the minimum possible number of static bits
|
||||||
* has to be 1 in this latter case.
|
* which by disabling all tools e.g. MS, TNS and sbfCnt=0. The minCnt
|
||||||
* \param hTpEnc Transport encoder handle. If NULL, the number of static bits will be returned into
|
* parameter has to be 1 in this latter case.
|
||||||
* *pBitDemand.
|
* \param hTpEnc Transport encoder handle. If NULL, the number of static bits
|
||||||
|
* will be returned into *pBitDemand.
|
||||||
* \param pElInfo
|
* \param pElInfo
|
||||||
* \param qcOutChannel
|
* \param qcOutChannel
|
||||||
* \param hReorderInfo
|
* \param hReorderInfo
|
||||||
* \param psyOutElement
|
* \param psyOutElement
|
||||||
* \param psyOutChannel
|
* \param psyOutChannel
|
||||||
* \param syntaxFlags Bit stream syntax flags as defined in FDK_audio.h (Audio Codec flags).
|
* \param syntaxFlags Bit stream syntax flags as defined in FDK_audio.h (Audio
|
||||||
|
* Codec flags).
|
||||||
* \param aot
|
* \param aot
|
||||||
* \param epConfig
|
* \param epConfig
|
||||||
* \param pBitDemand Pointer to an int where the amount of bits is returned into. The returned value
|
* \param pBitDemand Pointer to an int where the amount of bits is returned
|
||||||
* depends on if hTpEnc is NULL and minCnt.
|
* into. The returned value depends on if hTpEnc is NULL and minCnt.
|
||||||
* \param minCnt If non-zero the value returned into *pBitDemand is the absolute minimum required amount of
|
* \param minCnt If non-zero the value returned into *pBitDemand is the absolute
|
||||||
* static bits in order to write a valid bit stream.
|
* minimum required amount of static bits in order to write a valid bit stream.
|
||||||
* \return AAC_ENCODER_ERROR error code
|
* \return AAC_ENCODER_ERROR error code
|
||||||
*/
|
*/
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( HANDLE_TRANSPORTENC hTpEnc,
|
AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite(
|
||||||
ELEMENT_INFO *pElInfo,
|
HANDLE_TRANSPORTENC hTpEnc, ELEMENT_INFO *pElInfo,
|
||||||
QC_OUT_CHANNEL *qcOutChannel[(2)],
|
QC_OUT_CHANNEL *qcOutChannel[(2)], PSY_OUT_ELEMENT *psyOutElement,
|
||||||
PSY_OUT_ELEMENT *psyOutElement,
|
PSY_OUT_CHANNEL *psyOutChannel[(2)], UINT syntaxFlags,
|
||||||
PSY_OUT_CHANNEL *psyOutChannel[(2)],
|
AUDIO_OBJECT_TYPE aot, SCHAR epConfig, INT *pBitDemand, UCHAR minCnt);
|
||||||
UINT syntaxFlags,
|
|
||||||
AUDIO_OBJECT_TYPE aot,
|
|
||||||
SCHAR epConfig,
|
|
||||||
INT *pBitDemand,
|
|
||||||
UCHAR minCnt
|
|
||||||
);
|
|
||||||
/**
|
/**
|
||||||
* \brief Write bit stream or account static bits
|
* \brief Write bit stream or account static bits
|
||||||
* \param hTpEnc transport encoder handle. If NULL, the function will
|
* \param hTpEnc transport encoder handle. If NULL, the function will
|
||||||
@ -163,21 +170,15 @@ AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( HANDLE_TRANSPORTENC hTpEnc,
|
|||||||
*/
|
*/
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_WriteBitstream(HANDLE_TRANSPORTENC hTpEnc,
|
AAC_ENCODER_ERROR FDKaacEnc_WriteBitstream(HANDLE_TRANSPORTENC hTpEnc,
|
||||||
CHANNEL_MAPPING *channelMapping,
|
CHANNEL_MAPPING *channelMapping,
|
||||||
QC_OUT* qcOut,
|
QC_OUT *qcOut, PSY_OUT *psyOut,
|
||||||
PSY_OUT* psyOut,
|
|
||||||
QC_STATE *qcKernel,
|
QC_STATE *qcKernel,
|
||||||
AUDIO_OBJECT_TYPE aot,
|
AUDIO_OBJECT_TYPE aot,
|
||||||
UINT syntaxFlags,
|
UINT syntaxFlags, SCHAR epConfig);
|
||||||
SCHAR epConfig
|
|
||||||
);
|
|
||||||
|
|
||||||
INT FDKaacEnc_writeExtensionData(HANDLE_TRANSPORTENC hTpEnc,
|
INT FDKaacEnc_writeExtensionData(HANDLE_TRANSPORTENC hTpEnc,
|
||||||
QC_OUT_EXTENSION *pExtension,
|
QC_OUT_EXTENSION *pExtension,
|
||||||
INT elInstanceTag,
|
INT elInstanceTag, UINT alignAnchor,
|
||||||
UINT alignAnchor,
|
UINT syntaxFlags, AUDIO_OBJECT_TYPE aot,
|
||||||
UINT syntaxFlags,
|
SCHAR epConfig);
|
||||||
AUDIO_OBJECT_TYPE aot,
|
|
||||||
SCHAR epConfig
|
|
||||||
);
|
|
||||||
|
|
||||||
#endif /* _BITENC_H */
|
#endif /* BITENC_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,87 +90,90 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Author(s): M. Werner, Tobias Chalupka
|
Author(s): M. Werner, Tobias Chalupka
|
||||||
|
|
||||||
Description: Block switching
|
Description: Block switching
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
/****************** Includes *****************************/
|
/****************** Includes *****************************/
|
||||||
|
|
||||||
#include "block_switch.h"
|
#include "block_switch.h"
|
||||||
#include "genericStds.h"
|
#include "genericStds.h"
|
||||||
|
|
||||||
|
|
||||||
#define LOWOV_WINDOW _LOWOV_WINDOW
|
#define LOWOV_WINDOW _LOWOV_WINDOW
|
||||||
|
|
||||||
/**************** internal function prototypes ***********/
|
/**************** internal function prototypes ***********/
|
||||||
|
|
||||||
static FIXP_DBL FDKaacEnc_GetWindowEnergy(const FIXP_DBL in[], const INT blSwWndIdx);
|
static FIXP_DBL FDKaacEnc_GetWindowEnergy(const FIXP_DBL in[],
|
||||||
|
const INT blSwWndIdx);
|
||||||
|
|
||||||
static void FDKaacEnc_CalcWindowEnergy(
|
static void FDKaacEnc_CalcWindowEnergy(
|
||||||
BLOCK_SWITCHING_CONTROL *RESTRICT blockSwitchingControl,
|
BLOCK_SWITCHING_CONTROL *RESTRICT blockSwitchingControl, INT windowLen,
|
||||||
INT windowLen,
|
const INT_PCM *pTimeSignal);
|
||||||
const INT_PCM *pTimeSignal
|
|
||||||
);
|
|
||||||
|
|
||||||
/****************** Constants *****************************/
|
/****************** Constants *****************************/
|
||||||
/* LONG START SHORT STOP LOWOV */
|
/* LONG START
|
||||||
static const INT blockType2windowShape[2][5] = { {SINE_WINDOW, KBD_WINDOW, WRONG_WINDOW, SINE_WINDOW, KBD_WINDOW}, /* LD */
|
* SHORT STOP LOWOV */
|
||||||
|
static const INT blockType2windowShape[2][5] = {
|
||||||
|
{SINE_WINDOW, KBD_WINDOW, WRONG_WINDOW, SINE_WINDOW, KBD_WINDOW}, /* LD */
|
||||||
{KBD_WINDOW, SINE_WINDOW, SINE_WINDOW, KBD_WINDOW, WRONG_WINDOW}}; /* LC */
|
{KBD_WINDOW, SINE_WINDOW, SINE_WINDOW, KBD_WINDOW, WRONG_WINDOW}}; /* LC */
|
||||||
|
|
||||||
/* IIR high pass coeffs */
|
/* IIR high pass coeffs */
|
||||||
|
|
||||||
#ifndef SINETABLE_16BIT
|
#ifndef SINETABLE_16BIT
|
||||||
|
|
||||||
static const FIXP_DBL hiPassCoeff[BLOCK_SWITCHING_IIR_LEN]=
|
static const FIXP_DBL hiPassCoeff[BLOCK_SWITCHING_IIR_LEN] = {
|
||||||
{
|
FL2FXCONST_DBL(-0.5095), FL2FXCONST_DBL(0.7548)};
|
||||||
FL2FXCONST_DBL(-0.5095),FL2FXCONST_DBL(0.7548)
|
|
||||||
};
|
|
||||||
|
|
||||||
static const FIXP_DBL accWindowNrgFac = FL2FXCONST_DBL(0.3f); /* factor for accumulating filtered window energies */
|
static const FIXP_DBL accWindowNrgFac =
|
||||||
|
FL2FXCONST_DBL(0.3f); /* factor for accumulating filtered window energies */
|
||||||
static const FIXP_DBL oneMinusAccWindowNrgFac = FL2FXCONST_DBL(0.7f);
|
static const FIXP_DBL oneMinusAccWindowNrgFac = FL2FXCONST_DBL(0.7f);
|
||||||
/* static const float attackRatio = 10.0; */ /* lower ratio limit for attacks */
|
/* static const float attackRatio = 10.0; */ /* lower ratio limit for attacks */
|
||||||
static const FIXP_DBL invAttackRatio = FL2FXCONST_DBL(0.1f); /* inverted lower ratio limit for attacks */
|
static const FIXP_DBL invAttackRatio =
|
||||||
|
FL2FXCONST_DBL(0.1f); /* inverted lower ratio limit for attacks */
|
||||||
|
|
||||||
/* The next constants are scaled, because they are used for comparison with scaled values*/
|
/* The next constants are scaled, because they are used for comparison with
|
||||||
|
* scaled values*/
|
||||||
/* minimum energy for attacks */
|
/* minimum energy for attacks */
|
||||||
static const FIXP_DBL minAttackNrg = (FL2FXCONST_DBL(1e+6f*NORM_PCM_ENERGY)>>BLOCK_SWITCH_ENERGY_SHIFT); /* minimum energy for attacks */
|
static const FIXP_DBL minAttackNrg =
|
||||||
|
(FL2FXCONST_DBL(1e+6f * NORM_PCM_ENERGY) >>
|
||||||
|
BLOCK_SWITCH_ENERGY_SHIFT); /* minimum energy for attacks */
|
||||||
|
|
||||||
#else
|
#else
|
||||||
|
|
||||||
static const FIXP_SGL hiPassCoeff[BLOCK_SWITCHING_IIR_LEN]=
|
static const FIXP_SGL hiPassCoeff[BLOCK_SWITCHING_IIR_LEN] = {
|
||||||
{
|
FL2FXCONST_SGL(-0.5095), FL2FXCONST_SGL(0.7548)};
|
||||||
FL2FXCONST_SGL(-0.5095),FL2FXCONST_SGL(0.7548)
|
|
||||||
};
|
|
||||||
|
|
||||||
static const FIXP_DBL accWindowNrgFac = FL2FXCONST_DBL(0.3f); /* factor for accumulating filtered window energies */
|
static const FIXP_DBL accWindowNrgFac =
|
||||||
|
FL2FXCONST_DBL(0.3f); /* factor for accumulating filtered window energies */
|
||||||
static const FIXP_SGL oneMinusAccWindowNrgFac = FL2FXCONST_SGL(0.7f);
|
static const FIXP_SGL oneMinusAccWindowNrgFac = FL2FXCONST_SGL(0.7f);
|
||||||
/* static const float attackRatio = 10.0; */ /* lower ratio limit for attacks */
|
/* static const float attackRatio = 10.0; */ /* lower ratio limit for attacks */
|
||||||
static const FIXP_SGL invAttackRatio = FL2FXCONST_SGL(0.1f); /* inverted lower ratio limit for attacks */
|
static const FIXP_SGL invAttackRatio =
|
||||||
|
FL2FXCONST_SGL(0.1f); /* inverted lower ratio limit for attacks */
|
||||||
/* minimum energy for attacks */
|
/* minimum energy for attacks */
|
||||||
static const FIXP_DBL minAttackNrg = (FL2FXCONST_DBL(1e+6f*NORM_PCM_ENERGY)>>BLOCK_SWITCH_ENERGY_SHIFT); /* minimum energy for attacks */
|
static const FIXP_DBL minAttackNrg =
|
||||||
|
(FL2FXCONST_DBL(1e+6f * NORM_PCM_ENERGY) >>
|
||||||
|
BLOCK_SWITCH_ENERGY_SHIFT); /* minimum energy for attacks */
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/**************** internal function prototypes ***********/
|
/**************** internal function prototypes ***********/
|
||||||
|
|
||||||
/****************** Routines ****************************/
|
/****************** Routines ****************************/
|
||||||
void FDKaacEnc_InitBlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, INT isLowDelay)
|
void FDKaacEnc_InitBlockSwitching(
|
||||||
{
|
BLOCK_SWITCHING_CONTROL *blockSwitchingControl, INT isLowDelay) {
|
||||||
FDKmemclear(blockSwitchingControl, sizeof(BLOCK_SWITCHING_CONTROL));
|
FDKmemclear(blockSwitchingControl, sizeof(BLOCK_SWITCHING_CONTROL));
|
||||||
|
|
||||||
if (isLowDelay)
|
if (isLowDelay) {
|
||||||
{
|
|
||||||
blockSwitchingControl->nBlockSwitchWindows = 4;
|
blockSwitchingControl->nBlockSwitchWindows = 4;
|
||||||
blockSwitchingControl->allowShortFrames = 0;
|
blockSwitchingControl->allowShortFrames = 0;
|
||||||
blockSwitchingControl->allowLookAhead = 0;
|
blockSwitchingControl->allowLookAhead = 0;
|
||||||
}
|
} else {
|
||||||
else
|
|
||||||
{
|
|
||||||
blockSwitchingControl->nBlockSwitchWindows = 8;
|
blockSwitchingControl->nBlockSwitchWindows = 8;
|
||||||
blockSwitchingControl->allowShortFrames = 1;
|
blockSwitchingControl->allowShortFrames = 1;
|
||||||
blockSwitchingControl->allowLookAhead = 1;
|
blockSwitchingControl->allowLookAhead = 1;
|
||||||
@ -169,12 +183,12 @@ void FDKaacEnc_InitBlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl
|
|||||||
|
|
||||||
/* Initialize startvalue for blocktype */
|
/* Initialize startvalue for blocktype */
|
||||||
blockSwitchingControl->lastWindowSequence = LONG_WINDOW;
|
blockSwitchingControl->lastWindowSequence = LONG_WINDOW;
|
||||||
blockSwitchingControl->windowShape = blockType2windowShape[blockSwitchingControl->allowShortFrames][blockSwitchingControl->lastWindowSequence];
|
blockSwitchingControl->windowShape =
|
||||||
|
blockType2windowShape[blockSwitchingControl->allowShortFrames]
|
||||||
|
[blockSwitchingControl->lastWindowSequence];
|
||||||
}
|
}
|
||||||
|
|
||||||
static const INT suggestedGroupingTable[TRANS_FAC][MAX_NO_OF_GROUPS] =
|
static const INT suggestedGroupingTable[TRANS_FAC][MAX_NO_OF_GROUPS] = {
|
||||||
{
|
|
||||||
/* Attack in Window 0 */ {1, 3, 3, 1},
|
/* Attack in Window 0 */ {1, 3, 3, 1},
|
||||||
/* Attack in Window 1 */ {1, 1, 3, 3},
|
/* Attack in Window 1 */ {1, 1, 3, 3},
|
||||||
/* Attack in Window 2 */ {2, 1, 3, 2},
|
/* Attack in Window 2 */ {2, 1, 3, 2},
|
||||||
@ -182,31 +196,39 @@ static const INT suggestedGroupingTable[TRANS_FAC][MAX_NO_OF_GROUPS] =
|
|||||||
/* Attack in Window 4 */ {3, 1, 1, 3},
|
/* Attack in Window 4 */ {3, 1, 1, 3},
|
||||||
/* Attack in Window 5 */ {3, 2, 1, 2},
|
/* Attack in Window 5 */ {3, 2, 1, 2},
|
||||||
/* Attack in Window 6 */ {3, 3, 1, 1},
|
/* Attack in Window 6 */ {3, 3, 1, 1},
|
||||||
/* Attack in Window 7 */ {3, 3, 1, 1}
|
/* Attack in Window 7 */ {3, 3, 1, 1}};
|
||||||
};
|
|
||||||
|
|
||||||
/* change block type depending on current blocktype and whether there's an attack */
|
/* change block type depending on current blocktype and whether there's an
|
||||||
|
* attack */
|
||||||
/* assume no look-ahead */
|
/* assume no look-ahead */
|
||||||
static const INT chgWndSq[2][N_BLOCKTYPES] =
|
static const INT chgWndSq[2][N_BLOCKTYPES] = {
|
||||||
{
|
/* LONG WINDOW START_WINDOW SHORT_WINDOW STOP_WINDOW,
|
||||||
/* LONG WINDOW START_WINDOW SHORT_WINDOW STOP_WINDOW, LOWOV_WINDOW, WRONG_WINDOW */
|
LOWOV_WINDOW, WRONG_WINDOW */
|
||||||
/*no attack*/ {LONG_WINDOW, STOP_WINDOW, WRONG_WINDOW, LONG_WINDOW, STOP_WINDOW , WRONG_WINDOW },
|
/*no attack*/ {LONG_WINDOW, STOP_WINDOW, WRONG_WINDOW, LONG_WINDOW,
|
||||||
/*attack */ {START_WINDOW, LOWOV_WINDOW, WRONG_WINDOW, START_WINDOW, LOWOV_WINDOW, WRONG_WINDOW }
|
STOP_WINDOW, WRONG_WINDOW},
|
||||||
};
|
/*attack */ {START_WINDOW, LOWOV_WINDOW, WRONG_WINDOW, START_WINDOW,
|
||||||
|
LOWOV_WINDOW, WRONG_WINDOW}};
|
||||||
|
|
||||||
/* change block type depending on current blocktype and whether there's an attack */
|
/* change block type depending on current blocktype and whether there's an
|
||||||
|
* attack */
|
||||||
/* assume look-ahead */
|
/* assume look-ahead */
|
||||||
static const INT chgWndSqLkAhd[2][2][N_BLOCKTYPES] =
|
static const INT chgWndSqLkAhd[2][2][N_BLOCKTYPES] = {
|
||||||
{
|
|
||||||
/*attack LONG WINDOW START_WINDOW SHORT_WINDOW STOP_WINDOW LOWOV_WINDOW, WRONG_WINDOW */ /* last attack */
|
/*attack LONG WINDOW START_WINDOW SHORT_WINDOW STOP_WINDOW LOWOV_WINDOW, WRONG_WINDOW */ /* last attack */
|
||||||
/*no attack*/ { {LONG_WINDOW, SHORT_WINDOW, STOP_WINDOW, LONG_WINDOW, WRONG_WINDOW, WRONG_WINDOW}, /* no attack */
|
/*no attack*/ {
|
||||||
/*attack */ {START_WINDOW, SHORT_WINDOW, SHORT_WINDOW, START_WINDOW, WRONG_WINDOW, WRONG_WINDOW} }, /* no attack */
|
{LONG_WINDOW, SHORT_WINDOW, STOP_WINDOW, LONG_WINDOW, WRONG_WINDOW,
|
||||||
/*no attack*/ { {LONG_WINDOW, SHORT_WINDOW, SHORT_WINDOW, LONG_WINDOW, WRONG_WINDOW, WRONG_WINDOW}, /* attack */
|
WRONG_WINDOW}, /* no attack */
|
||||||
/*attack */ {START_WINDOW, SHORT_WINDOW, SHORT_WINDOW, START_WINDOW, WRONG_WINDOW, WRONG_WINDOW} } /* attack */
|
/*attack */ {START_WINDOW, SHORT_WINDOW, SHORT_WINDOW, START_WINDOW,
|
||||||
|
WRONG_WINDOW, WRONG_WINDOW}}, /* no attack */
|
||||||
|
/*no attack*/ {{LONG_WINDOW, SHORT_WINDOW, SHORT_WINDOW, LONG_WINDOW,
|
||||||
|
WRONG_WINDOW, WRONG_WINDOW}, /* attack */
|
||||||
|
/*attack */ {START_WINDOW, SHORT_WINDOW, SHORT_WINDOW,
|
||||||
|
START_WINDOW, WRONG_WINDOW,
|
||||||
|
WRONG_WINDOW}} /* attack */
|
||||||
};
|
};
|
||||||
|
|
||||||
int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, const INT granuleLength, const int isLFE, const INT_PCM *pTimeSignal)
|
int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl,
|
||||||
{
|
const INT granuleLength, const int isLFE,
|
||||||
|
const INT_PCM *pTimeSignal) {
|
||||||
UINT i;
|
UINT i;
|
||||||
FIXP_DBL enM1, enMax;
|
FIXP_DBL enM1, enMax;
|
||||||
|
|
||||||
@ -214,7 +236,6 @@ int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, con
|
|||||||
|
|
||||||
/* for LFE : only LONG window allowed */
|
/* for LFE : only LONG window allowed */
|
||||||
if (isLFE) {
|
if (isLFE) {
|
||||||
|
|
||||||
/* case LFE: */
|
/* case LFE: */
|
||||||
/* only long blocks, always use sine windows (MPEG2 AAC, MPEG4 AAC) */
|
/* only long blocks, always use sine windows (MPEG2 AAC, MPEG4 AAC) */
|
||||||
blockSwitchingControl->lastWindowSequence = LONG_WINDOW;
|
blockSwitchingControl->lastWindowSequence = LONG_WINDOW;
|
||||||
@ -230,31 +251,40 @@ int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, con
|
|||||||
blockSwitchingControl->lastAttackIndex = blockSwitchingControl->attackIndex;
|
blockSwitchingControl->lastAttackIndex = blockSwitchingControl->attackIndex;
|
||||||
|
|
||||||
/* Save current window energy as last window energy */
|
/* Save current window energy as last window energy */
|
||||||
FDKmemcpy(blockSwitchingControl->windowNrg[0], blockSwitchingControl->windowNrg[1], sizeof(blockSwitchingControl->windowNrg[0]));
|
FDKmemcpy(blockSwitchingControl->windowNrg[0],
|
||||||
FDKmemcpy(blockSwitchingControl->windowNrgF[0], blockSwitchingControl->windowNrgF[1], sizeof(blockSwitchingControl->windowNrgF[0]));
|
blockSwitchingControl->windowNrg[1],
|
||||||
|
sizeof(blockSwitchingControl->windowNrg[0]));
|
||||||
|
FDKmemcpy(blockSwitchingControl->windowNrgF[0],
|
||||||
|
blockSwitchingControl->windowNrgF[1],
|
||||||
|
sizeof(blockSwitchingControl->windowNrgF[0]));
|
||||||
|
|
||||||
if (blockSwitchingControl->allowShortFrames)
|
if (blockSwitchingControl->allowShortFrames) {
|
||||||
{
|
|
||||||
/* Calculate suggested grouping info for the last frame */
|
/* Calculate suggested grouping info for the last frame */
|
||||||
|
|
||||||
/* Reset grouping info */
|
/* Reset grouping info */
|
||||||
FDKmemclear (blockSwitchingControl->groupLen, sizeof(blockSwitchingControl->groupLen));
|
FDKmemclear(blockSwitchingControl->groupLen,
|
||||||
|
sizeof(blockSwitchingControl->groupLen));
|
||||||
|
|
||||||
/* Set grouping info */
|
/* Set grouping info */
|
||||||
blockSwitchingControl->noOfGroups = MAX_NO_OF_GROUPS;
|
blockSwitchingControl->noOfGroups = MAX_NO_OF_GROUPS;
|
||||||
|
|
||||||
FDKmemcpy(blockSwitchingControl->groupLen, suggestedGroupingTable[blockSwitchingControl->lastAttackIndex], sizeof(blockSwitchingControl->groupLen));
|
FDKmemcpy(blockSwitchingControl->groupLen,
|
||||||
|
suggestedGroupingTable[blockSwitchingControl->lastAttackIndex],
|
||||||
|
sizeof(blockSwitchingControl->groupLen));
|
||||||
|
|
||||||
if (blockSwitchingControl->attack == TRUE)
|
if (blockSwitchingControl->attack == TRUE)
|
||||||
blockSwitchingControl->maxWindowNrg = FDKaacEnc_GetWindowEnergy(blockSwitchingControl->windowNrg[0], blockSwitchingControl->lastAttackIndex);
|
blockSwitchingControl->maxWindowNrg =
|
||||||
|
FDKaacEnc_GetWindowEnergy(blockSwitchingControl->windowNrg[0],
|
||||||
|
blockSwitchingControl->lastAttackIndex);
|
||||||
else
|
else
|
||||||
blockSwitchingControl->maxWindowNrg = FL2FXCONST_DBL(0.0);
|
blockSwitchingControl->maxWindowNrg = FL2FXCONST_DBL(0.0);
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* Calculate unfiltered and filtered energies in subwindows and combine to
|
||||||
/* Calculate unfiltered and filtered energies in subwindows and combine to segments */
|
* segments */
|
||||||
FDKaacEnc_CalcWindowEnergy(blockSwitchingControl, granuleLength>>(nBlockSwitchWindows==4? 2:3 ), pTimeSignal);
|
FDKaacEnc_CalcWindowEnergy(
|
||||||
|
blockSwitchingControl,
|
||||||
|
granuleLength >> (nBlockSwitchWindows == 4 ? 2 : 3), pTimeSignal);
|
||||||
|
|
||||||
/* now calculate if there is an attack */
|
/* now calculate if there is an attack */
|
||||||
|
|
||||||
@ -266,10 +296,12 @@ int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, con
|
|||||||
enM1 = blockSwitchingControl->windowNrgF[0][nBlockSwitchWindows - 1];
|
enM1 = blockSwitchingControl->windowNrgF[0][nBlockSwitchWindows - 1];
|
||||||
|
|
||||||
for (i = 0; i < nBlockSwitchWindows; i++) {
|
for (i = 0; i < nBlockSwitchWindows; i++) {
|
||||||
FIXP_DBL tmp = fMultDiv2(oneMinusAccWindowNrgFac, blockSwitchingControl->accWindowNrg);
|
FIXP_DBL tmp =
|
||||||
|
fMultDiv2(oneMinusAccWindowNrgFac, blockSwitchingControl->accWindowNrg);
|
||||||
blockSwitchingControl->accWindowNrg = fMultAdd(tmp, accWindowNrgFac, enM1);
|
blockSwitchingControl->accWindowNrg = fMultAdd(tmp, accWindowNrgFac, enM1);
|
||||||
|
|
||||||
if (fMult(blockSwitchingControl->windowNrgF[1][i],invAttackRatio) > blockSwitchingControl->accWindowNrg ) {
|
if (fMult(blockSwitchingControl->windowNrgF[1][i], invAttackRatio) >
|
||||||
|
blockSwitchingControl->accWindowNrg) {
|
||||||
blockSwitchingControl->attack = TRUE;
|
blockSwitchingControl->attack = TRUE;
|
||||||
blockSwitchingControl->attackIndex = i;
|
blockSwitchingControl->attackIndex = i;
|
||||||
}
|
}
|
||||||
@ -277,153 +309,161 @@ int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, con
|
|||||||
enMax = fixMax(enMax, enM1);
|
enMax = fixMax(enMax, enM1);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
if (enMax < minAttackNrg) blockSwitchingControl->attack = FALSE;
|
if (enMax < minAttackNrg) blockSwitchingControl->attack = FALSE;
|
||||||
|
|
||||||
/* Check if attack spreads over frame border */
|
/* Check if attack spreads over frame border */
|
||||||
if((blockSwitchingControl->attack == FALSE) && (blockSwitchingControl->lastattack == TRUE)) {
|
if ((blockSwitchingControl->attack == FALSE) &&
|
||||||
|
(blockSwitchingControl->lastattack == TRUE)) {
|
||||||
/* if attack is in last window repeat SHORT_WINDOW */
|
/* if attack is in last window repeat SHORT_WINDOW */
|
||||||
if ( ((blockSwitchingControl->windowNrgF[0][nBlockSwitchWindows-1]>>4) > fMult((FIXP_DBL)(10<<(DFRACT_BITS-1-4)), blockSwitchingControl->windowNrgF[1][1]))
|
if (((blockSwitchingControl->windowNrgF[0][nBlockSwitchWindows - 1] >> 4) >
|
||||||
&& (blockSwitchingControl->lastAttackIndex == (INT)nBlockSwitchWindows-1)
|
fMult((FIXP_DBL)(10 << (DFRACT_BITS - 1 - 4)),
|
||||||
)
|
blockSwitchingControl->windowNrgF[1][1])) &&
|
||||||
{
|
(blockSwitchingControl->lastAttackIndex ==
|
||||||
|
(INT)nBlockSwitchWindows - 1)) {
|
||||||
blockSwitchingControl->attack = TRUE;
|
blockSwitchingControl->attack = TRUE;
|
||||||
blockSwitchingControl->attackIndex = 0;
|
blockSwitchingControl->attackIndex = 0;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
if (blockSwitchingControl->allowLookAhead) {
|
||||||
if(blockSwitchingControl->allowLookAhead)
|
|
||||||
{
|
|
||||||
|
|
||||||
|
|
||||||
blockSwitchingControl->lastWindowSequence =
|
blockSwitchingControl->lastWindowSequence =
|
||||||
chgWndSqLkAhd[blockSwitchingControl->lastattack][blockSwitchingControl->attack][blockSwitchingControl->lastWindowSequence];
|
chgWndSqLkAhd[blockSwitchingControl->lastattack]
|
||||||
}
|
[blockSwitchingControl->attack]
|
||||||
else
|
[blockSwitchingControl->lastWindowSequence];
|
||||||
{
|
} else {
|
||||||
/* Low Delay */
|
/* Low Delay */
|
||||||
blockSwitchingControl->lastWindowSequence =
|
blockSwitchingControl->lastWindowSequence =
|
||||||
chgWndSq[blockSwitchingControl->attack][blockSwitchingControl->lastWindowSequence];
|
chgWndSq[blockSwitchingControl->attack]
|
||||||
|
[blockSwitchingControl->lastWindowSequence];
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* update window shape */
|
/* update window shape */
|
||||||
blockSwitchingControl->windowShape = blockType2windowShape[blockSwitchingControl->allowShortFrames][blockSwitchingControl->lastWindowSequence];
|
blockSwitchingControl->windowShape =
|
||||||
|
blockType2windowShape[blockSwitchingControl->allowShortFrames]
|
||||||
|
[blockSwitchingControl->lastWindowSequence];
|
||||||
|
|
||||||
return (0);
|
return (0);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static FIXP_DBL FDKaacEnc_GetWindowEnergy(const FIXP_DBL in[],
|
||||||
|
const INT blSwWndIdx) {
|
||||||
static FIXP_DBL FDKaacEnc_GetWindowEnergy(const FIXP_DBL in[], const INT blSwWndIdx)
|
/* For coherency, change FDKaacEnc_GetWindowEnergy() to calcluate the energy
|
||||||
{
|
for a block switching analysis windows, not for a short block. The same is
|
||||||
/* For coherency, change FDKaacEnc_GetWindowEnergy() to calcluate the energy for a block switching analysis windows,
|
done FDKaacEnc_CalcWindowEnergy(). The result of
|
||||||
not for a short block. The same is done FDKaacEnc_CalcWindowEnergy(). The result of FDKaacEnc_GetWindowEnergy()
|
FDKaacEnc_GetWindowEnergy() is used for a comparision of the max energy of
|
||||||
is used for a comparision of the max energy of left/right channel. */
|
left/right channel. */
|
||||||
|
|
||||||
return in[blSwWndIdx];
|
return in[blSwWndIdx];
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static void FDKaacEnc_CalcWindowEnergy(BLOCK_SWITCHING_CONTROL *RESTRICT blockSwitchingControl, INT windowLen, const INT_PCM *pTimeSignal)
|
static void FDKaacEnc_CalcWindowEnergy(
|
||||||
{
|
BLOCK_SWITCHING_CONTROL *RESTRICT blockSwitchingControl, INT windowLen,
|
||||||
|
const INT_PCM *pTimeSignal) {
|
||||||
INT i;
|
INT i;
|
||||||
UINT w;
|
UINT w;
|
||||||
|
|
||||||
FIXP_SGL hiPassCoeff0 = hiPassCoeff[0];
|
#ifndef SINETABLE_16BIT
|
||||||
FIXP_SGL hiPassCoeff1 = hiPassCoeff[1];
|
const FIXP_DBL hiPassCoeff0 = hiPassCoeff[0];
|
||||||
|
const FIXP_DBL hiPassCoeff1 = hiPassCoeff[1];
|
||||||
|
#else
|
||||||
|
const FIXP_SGL hiPassCoeff0 = hiPassCoeff[0];
|
||||||
|
const FIXP_SGL hiPassCoeff1 = hiPassCoeff[1];
|
||||||
|
#endif
|
||||||
|
|
||||||
/* sum up scalarproduct of timesignal as windowed Energies */
|
|
||||||
for (w=0; w < blockSwitchingControl->nBlockSwitchWindows; w++) {
|
|
||||||
|
|
||||||
FIXP_DBL temp_windowNrg = FL2FXCONST_DBL(0.0f);
|
|
||||||
FIXP_DBL temp_windowNrgF = FL2FXCONST_DBL(0.0f);
|
|
||||||
FIXP_DBL temp_iirState0 = blockSwitchingControl->iirStates[0];
|
FIXP_DBL temp_iirState0 = blockSwitchingControl->iirStates[0];
|
||||||
FIXP_DBL temp_iirState1 = blockSwitchingControl->iirStates[1];
|
FIXP_DBL temp_iirState1 = blockSwitchingControl->iirStates[1];
|
||||||
|
|
||||||
/* windowNrg = sum(timesample^2) */
|
/* sum up scalarproduct of timesignal as windowed Energies */
|
||||||
for(i=0;i<windowLen;i++)
|
for (w = 0; w < blockSwitchingControl->nBlockSwitchWindows; w++) {
|
||||||
{
|
ULONG temp_windowNrg = 0x0;
|
||||||
|
ULONG temp_windowNrgF = 0x0;
|
||||||
|
|
||||||
FIXP_DBL tempUnfiltered, tempFiltred, t1, t2;
|
/* windowNrg = sum(timesample^2) */
|
||||||
/* tempUnfiltered is scaled with 1 to prevent overflows during calculation of tempFiltred */
|
for (i = 0; i < windowLen; i++) {
|
||||||
|
FIXP_DBL tempUnfiltered, t1, t2;
|
||||||
|
/* tempUnfiltered is scaled with 1 to prevent overflows during calculation
|
||||||
|
* of tempFiltred */
|
||||||
#if SAMPLE_BITS == DFRACT_BITS
|
#if SAMPLE_BITS == DFRACT_BITS
|
||||||
tempUnfiltered = (FIXP_DBL)*pTimeSignal++ >> 1;
|
tempUnfiltered = (FIXP_DBL)*pTimeSignal++ >> 1;
|
||||||
#else
|
#else
|
||||||
tempUnfiltered = (FIXP_DBL) *pTimeSignal++ << (DFRACT_BITS-SAMPLE_BITS-1);
|
tempUnfiltered = (FIXP_DBL)*pTimeSignal++
|
||||||
|
<< (DFRACT_BITS - SAMPLE_BITS - 1);
|
||||||
#endif
|
#endif
|
||||||
t1 = fMultDiv2(hiPassCoeff1, tempUnfiltered - temp_iirState0);
|
t1 = fMultDiv2(hiPassCoeff1, tempUnfiltered - temp_iirState0);
|
||||||
t2 = fMultDiv2(hiPassCoeff0, temp_iirState1);
|
t2 = fMultDiv2(hiPassCoeff0, temp_iirState1);
|
||||||
tempFiltred = (t1 - t2) << 1;
|
|
||||||
|
|
||||||
temp_iirState0 = tempUnfiltered;
|
temp_iirState0 = tempUnfiltered;
|
||||||
temp_iirState1 = tempFiltred;
|
temp_iirState1 = (t1 - t2) << 1;
|
||||||
|
|
||||||
/* subtract 2 from overallscaling (BLOCK_SWITCH_ENERGY_SHIFT)
|
temp_windowNrg += (LONG)fPow2Div2(temp_iirState0) >>
|
||||||
* because tempUnfiltered was already scaled with 1 (is 2 after squaring)
|
(BLOCK_SWITCH_ENERGY_SHIFT - 1 - 2);
|
||||||
* subtract 1 from overallscaling (BLOCK_SWITCH_ENERGY_SHIFT)
|
temp_windowNrgF += (LONG)fPow2Div2(temp_iirState1) >>
|
||||||
* because of fMultDiv2 is doing a scaling by one */
|
(BLOCK_SWITCH_ENERGY_SHIFT - 1 - 2);
|
||||||
temp_windowNrg += fPow2Div2(tempUnfiltered) >> (BLOCK_SWITCH_ENERGY_SHIFT - 1 - 2);
|
}
|
||||||
temp_windowNrgF += fPow2Div2(tempFiltred) >> (BLOCK_SWITCH_ENERGY_SHIFT - 1 - 2);
|
blockSwitchingControl->windowNrg[1][w] =
|
||||||
|
(LONG)fMin(temp_windowNrg, (UINT)MAXVAL_DBL);
|
||||||
|
blockSwitchingControl->windowNrgF[1][w] =
|
||||||
|
(LONG)fMin(temp_windowNrgF, (UINT)MAXVAL_DBL);
|
||||||
}
|
}
|
||||||
blockSwitchingControl->windowNrg[1][w] = temp_windowNrg;
|
|
||||||
blockSwitchingControl->windowNrgF[1][w] = temp_windowNrgF;
|
|
||||||
blockSwitchingControl->iirStates[0] = temp_iirState0;
|
blockSwitchingControl->iirStates[0] = temp_iirState0;
|
||||||
blockSwitchingControl->iirStates[1] = temp_iirState1;
|
blockSwitchingControl->iirStates[1] = temp_iirState1;
|
||||||
}
|
}
|
||||||
}
|
|
||||||
|
|
||||||
|
static const UCHAR synchronizedBlockTypeTable[5][5] = {
|
||||||
static const UCHAR synchronizedBlockTypeTable[5][5] =
|
/* LONG_WINDOW START_WINDOW SHORT_WINDOW STOP_WINDOW
|
||||||
{
|
LOWOV_WINDOW*/
|
||||||
/* LONG_WINDOW START_WINDOW SHORT_WINDOW STOP_WINDOW LOWOV_WINDOW*/
|
/* LONG_WINDOW */ {LONG_WINDOW, START_WINDOW, SHORT_WINDOW, STOP_WINDOW,
|
||||||
/* LONG_WINDOW */ {LONG_WINDOW, START_WINDOW, SHORT_WINDOW, STOP_WINDOW, LOWOV_WINDOW},
|
LOWOV_WINDOW},
|
||||||
/* START_WINDOW */ {START_WINDOW, START_WINDOW, SHORT_WINDOW, SHORT_WINDOW, LOWOV_WINDOW},
|
/* START_WINDOW */
|
||||||
/* SHORT_WINDOW */ {SHORT_WINDOW, SHORT_WINDOW, SHORT_WINDOW, SHORT_WINDOW, WRONG_WINDOW},
|
{START_WINDOW, START_WINDOW, SHORT_WINDOW, SHORT_WINDOW, LOWOV_WINDOW},
|
||||||
/* STOP_WINDOW */ {STOP_WINDOW, SHORT_WINDOW, SHORT_WINDOW, STOP_WINDOW, LOWOV_WINDOW},
|
/* SHORT_WINDOW */
|
||||||
/* LOWOV_WINDOW */ {LOWOV_WINDOW, LOWOV_WINDOW, WRONG_WINDOW, LOWOV_WINDOW, LOWOV_WINDOW},
|
{SHORT_WINDOW, SHORT_WINDOW, SHORT_WINDOW, SHORT_WINDOW, WRONG_WINDOW},
|
||||||
|
/* STOP_WINDOW */
|
||||||
|
{STOP_WINDOW, SHORT_WINDOW, SHORT_WINDOW, STOP_WINDOW, LOWOV_WINDOW},
|
||||||
|
/* LOWOV_WINDOW */
|
||||||
|
{LOWOV_WINDOW, LOWOV_WINDOW, WRONG_WINDOW, LOWOV_WINDOW, LOWOV_WINDOW},
|
||||||
};
|
};
|
||||||
|
|
||||||
int FDKaacEnc_SyncBlockSwitching(
|
int FDKaacEnc_SyncBlockSwitching(
|
||||||
BLOCK_SWITCHING_CONTROL *blockSwitchingControlLeft,
|
BLOCK_SWITCHING_CONTROL *blockSwitchingControlLeft,
|
||||||
BLOCK_SWITCHING_CONTROL *blockSwitchingControlRight,
|
BLOCK_SWITCHING_CONTROL *blockSwitchingControlRight, const INT nChannels,
|
||||||
const INT nChannels,
|
const INT commonWindow) {
|
||||||
const INT commonWindow )
|
|
||||||
{
|
|
||||||
UCHAR patchType = LONG_WINDOW;
|
UCHAR patchType = LONG_WINDOW;
|
||||||
|
|
||||||
if( nChannels == 2 && commonWindow == TRUE)
|
if (nChannels == 2 && commonWindow == TRUE) {
|
||||||
{
|
|
||||||
/* could be better with a channel loop (need a handle to psy_data) */
|
/* could be better with a channel loop (need a handle to psy_data) */
|
||||||
/* get suggested Block Types and synchronize */
|
/* get suggested Block Types and synchronize */
|
||||||
patchType = synchronizedBlockTypeTable[patchType][blockSwitchingControlLeft->lastWindowSequence];
|
patchType = synchronizedBlockTypeTable[patchType][blockSwitchingControlLeft
|
||||||
patchType = synchronizedBlockTypeTable[patchType][blockSwitchingControlRight->lastWindowSequence];
|
->lastWindowSequence];
|
||||||
|
patchType = synchronizedBlockTypeTable[patchType][blockSwitchingControlRight
|
||||||
|
->lastWindowSequence];
|
||||||
|
|
||||||
/* sanity check (no change from low overlap window to short winow and vice versa) */
|
/* sanity check (no change from low overlap window to short winow and vice
|
||||||
if (patchType == WRONG_WINDOW)
|
* versa) */
|
||||||
return -1; /* mixed up AAC-LC and AAC-LD */
|
if (patchType == WRONG_WINDOW) return -1; /* mixed up AAC-LC and AAC-LD */
|
||||||
|
|
||||||
/* Set synchronized Blocktype */
|
/* Set synchronized Blocktype */
|
||||||
blockSwitchingControlLeft->lastWindowSequence = patchType;
|
blockSwitchingControlLeft->lastWindowSequence = patchType;
|
||||||
blockSwitchingControlRight->lastWindowSequence = patchType;
|
blockSwitchingControlRight->lastWindowSequence = patchType;
|
||||||
|
|
||||||
/* update window shape */
|
/* update window shape */
|
||||||
blockSwitchingControlLeft->windowShape = blockType2windowShape[blockSwitchingControlLeft->allowShortFrames][blockSwitchingControlLeft->lastWindowSequence];
|
blockSwitchingControlLeft->windowShape =
|
||||||
blockSwitchingControlRight->windowShape = blockType2windowShape[blockSwitchingControlLeft->allowShortFrames][blockSwitchingControlRight->lastWindowSequence];
|
blockType2windowShape[blockSwitchingControlLeft->allowShortFrames]
|
||||||
|
[blockSwitchingControlLeft->lastWindowSequence];
|
||||||
|
blockSwitchingControlRight->windowShape =
|
||||||
|
blockType2windowShape[blockSwitchingControlLeft->allowShortFrames]
|
||||||
|
[blockSwitchingControlRight->lastWindowSequence];
|
||||||
}
|
}
|
||||||
|
|
||||||
if (blockSwitchingControlLeft->allowShortFrames)
|
if (blockSwitchingControlLeft->allowShortFrames) {
|
||||||
{
|
|
||||||
int i;
|
int i;
|
||||||
|
|
||||||
if( nChannels == 2 )
|
if (nChannels == 2) {
|
||||||
{
|
if (commonWindow == TRUE) {
|
||||||
if (commonWindow == TRUE)
|
|
||||||
{
|
|
||||||
/* Synchronize grouping info */
|
/* Synchronize grouping info */
|
||||||
int windowSequenceLeftOld = blockSwitchingControlLeft->lastWindowSequence;
|
int windowSequenceLeftOld =
|
||||||
int windowSequenceRightOld = blockSwitchingControlRight->lastWindowSequence;
|
blockSwitchingControlLeft->lastWindowSequence;
|
||||||
|
int windowSequenceRightOld =
|
||||||
|
blockSwitchingControlRight->lastWindowSequence;
|
||||||
|
|
||||||
/* Long Blocks */
|
/* Long Blocks */
|
||||||
if (patchType != SHORT_WINDOW) {
|
if (patchType != SHORT_WINDOW) {
|
||||||
@ -433,8 +473,7 @@ int FDKaacEnc_SyncBlockSwitching (
|
|||||||
blockSwitchingControlLeft->groupLen[0] = 1;
|
blockSwitchingControlLeft->groupLen[0] = 1;
|
||||||
blockSwitchingControlRight->groupLen[0] = 1;
|
blockSwitchingControlRight->groupLen[0] = 1;
|
||||||
|
|
||||||
for (i = 1; i < MAX_NO_OF_GROUPS; i++)
|
for (i = 1; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
{
|
|
||||||
blockSwitchingControlLeft->groupLen[i] = 0;
|
blockSwitchingControlLeft->groupLen[i] = 0;
|
||||||
blockSwitchingControlRight->groupLen[i] = 0;
|
blockSwitchingControlRight->groupLen[i] = 0;
|
||||||
}
|
}
|
||||||
@ -442,64 +481,68 @@ int FDKaacEnc_SyncBlockSwitching (
|
|||||||
|
|
||||||
/* Short Blocks */
|
/* Short Blocks */
|
||||||
else {
|
else {
|
||||||
/* in case all two channels were detected as short-blocks before syncing, use the grouping of channel with higher maxWindowNrg */
|
/* in case all two channels were detected as short-blocks before
|
||||||
|
* syncing, use the grouping of channel with higher maxWindowNrg */
|
||||||
if ((windowSequenceLeftOld == SHORT_WINDOW) &&
|
if ((windowSequenceLeftOld == SHORT_WINDOW) &&
|
||||||
(windowSequenceRightOld == SHORT_WINDOW) )
|
(windowSequenceRightOld == SHORT_WINDOW)) {
|
||||||
{
|
if (blockSwitchingControlLeft->maxWindowNrg >
|
||||||
if(blockSwitchingControlLeft->maxWindowNrg > blockSwitchingControlRight->maxWindowNrg) {
|
blockSwitchingControlRight->maxWindowNrg) {
|
||||||
/* Left Channel wins */
|
/* Left Channel wins */
|
||||||
blockSwitchingControlRight->noOfGroups = blockSwitchingControlLeft->noOfGroups;
|
blockSwitchingControlRight->noOfGroups =
|
||||||
|
blockSwitchingControlLeft->noOfGroups;
|
||||||
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
blockSwitchingControlRight->groupLen[i] = blockSwitchingControlLeft->groupLen[i];
|
blockSwitchingControlRight->groupLen[i] =
|
||||||
|
blockSwitchingControlLeft->groupLen[i];
|
||||||
}
|
}
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/* Right Channel wins */
|
/* Right Channel wins */
|
||||||
blockSwitchingControlLeft->noOfGroups = blockSwitchingControlRight->noOfGroups;
|
blockSwitchingControlLeft->noOfGroups =
|
||||||
|
blockSwitchingControlRight->noOfGroups;
|
||||||
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
blockSwitchingControlLeft->groupLen[i] = blockSwitchingControlRight->groupLen[i];
|
blockSwitchingControlLeft->groupLen[i] =
|
||||||
|
blockSwitchingControlRight->groupLen[i];
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
} else if ((windowSequenceLeftOld == SHORT_WINDOW) &&
|
||||||
else if ( (windowSequenceLeftOld == SHORT_WINDOW) &&
|
(windowSequenceRightOld != SHORT_WINDOW)) {
|
||||||
(windowSequenceRightOld != SHORT_WINDOW) )
|
|
||||||
{
|
|
||||||
/* else use grouping of short-block channel */
|
/* else use grouping of short-block channel */
|
||||||
blockSwitchingControlRight->noOfGroups = blockSwitchingControlLeft->noOfGroups;
|
blockSwitchingControlRight->noOfGroups =
|
||||||
|
blockSwitchingControlLeft->noOfGroups;
|
||||||
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
blockSwitchingControlRight->groupLen[i] = blockSwitchingControlLeft->groupLen[i];
|
blockSwitchingControlRight->groupLen[i] =
|
||||||
|
blockSwitchingControlLeft->groupLen[i];
|
||||||
}
|
}
|
||||||
}
|
} else if ((windowSequenceRightOld == SHORT_WINDOW) &&
|
||||||
else if ( (windowSequenceRightOld == SHORT_WINDOW) &&
|
(windowSequenceLeftOld != SHORT_WINDOW)) {
|
||||||
(windowSequenceLeftOld != SHORT_WINDOW) )
|
blockSwitchingControlLeft->noOfGroups =
|
||||||
{
|
blockSwitchingControlRight->noOfGroups;
|
||||||
blockSwitchingControlLeft->noOfGroups = blockSwitchingControlRight->noOfGroups;
|
|
||||||
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
for (i = 0; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
blockSwitchingControlLeft->groupLen[i] = blockSwitchingControlRight->groupLen[i];
|
blockSwitchingControlLeft->groupLen[i] =
|
||||||
|
blockSwitchingControlRight->groupLen[i];
|
||||||
}
|
}
|
||||||
} else {
|
} else {
|
||||||
/* syncing a start and stop window ... */
|
/* syncing a start and stop window ... */
|
||||||
blockSwitchingControlLeft->noOfGroups = blockSwitchingControlRight->noOfGroups = 2;
|
blockSwitchingControlLeft->noOfGroups =
|
||||||
blockSwitchingControlLeft->groupLen[0] = blockSwitchingControlRight->groupLen[0] = 4;
|
blockSwitchingControlRight->noOfGroups = 2;
|
||||||
blockSwitchingControlLeft->groupLen[1] = blockSwitchingControlRight->groupLen[1] = 4;
|
blockSwitchingControlLeft->groupLen[0] =
|
||||||
|
blockSwitchingControlRight->groupLen[0] = 4;
|
||||||
|
blockSwitchingControlLeft->groupLen[1] =
|
||||||
|
blockSwitchingControlRight->groupLen[1] = 4;
|
||||||
}
|
}
|
||||||
} /* Short Blocks */
|
} /* Short Blocks */
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/* stereo, no common window */
|
/* stereo, no common window */
|
||||||
if (blockSwitchingControlLeft->lastWindowSequence != SHORT_WINDOW) {
|
if (blockSwitchingControlLeft->lastWindowSequence != SHORT_WINDOW) {
|
||||||
blockSwitchingControlLeft->noOfGroups = 1;
|
blockSwitchingControlLeft->noOfGroups = 1;
|
||||||
blockSwitchingControlLeft->groupLen[0] = 1;
|
blockSwitchingControlLeft->groupLen[0] = 1;
|
||||||
for (i = 1; i < MAX_NO_OF_GROUPS; i++)
|
for (i = 1; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
{
|
|
||||||
blockSwitchingControlLeft->groupLen[i] = 0;
|
blockSwitchingControlLeft->groupLen[i] = 0;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
if (blockSwitchingControlRight->lastWindowSequence != SHORT_WINDOW) {
|
if (blockSwitchingControlRight->lastWindowSequence != SHORT_WINDOW) {
|
||||||
blockSwitchingControlRight->noOfGroups = 1;
|
blockSwitchingControlRight->noOfGroups = 1;
|
||||||
blockSwitchingControlRight->groupLen[0] = 1;
|
blockSwitchingControlRight->groupLen[0] = 1;
|
||||||
for (i = 1; i < MAX_NO_OF_GROUPS; i++)
|
for (i = 1; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
{
|
|
||||||
blockSwitchingControlRight->groupLen[i] = 0;
|
blockSwitchingControlRight->groupLen[i] = 0;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@ -510,29 +553,25 @@ int FDKaacEnc_SyncBlockSwitching (
|
|||||||
blockSwitchingControlLeft->noOfGroups = 1;
|
blockSwitchingControlLeft->noOfGroups = 1;
|
||||||
blockSwitchingControlLeft->groupLen[0] = 1;
|
blockSwitchingControlLeft->groupLen[0] = 1;
|
||||||
|
|
||||||
for (i = 1; i < MAX_NO_OF_GROUPS; i++)
|
for (i = 1; i < MAX_NO_OF_GROUPS; i++) {
|
||||||
{
|
|
||||||
blockSwitchingControlLeft->groupLen[i] = 0;
|
blockSwitchingControlLeft->groupLen[i] = 0;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
} /* allowShortFrames */
|
} /* allowShortFrames */
|
||||||
|
|
||||||
|
|
||||||
/* Translate LOWOV_WINDOW block type to a meaningful window shape. */
|
/* Translate LOWOV_WINDOW block type to a meaningful window shape. */
|
||||||
if (!blockSwitchingControlLeft->allowShortFrames) {
|
if (!blockSwitchingControlLeft->allowShortFrames) {
|
||||||
if ( blockSwitchingControlLeft->lastWindowSequence != LONG_WINDOW
|
if (blockSwitchingControlLeft->lastWindowSequence != LONG_WINDOW &&
|
||||||
&& blockSwitchingControlLeft->lastWindowSequence != STOP_WINDOW )
|
blockSwitchingControlLeft->lastWindowSequence != STOP_WINDOW) {
|
||||||
{
|
|
||||||
blockSwitchingControlLeft->lastWindowSequence = LONG_WINDOW;
|
blockSwitchingControlLeft->lastWindowSequence = LONG_WINDOW;
|
||||||
blockSwitchingControlLeft->windowShape = LOL_WINDOW;
|
blockSwitchingControlLeft->windowShape = LOL_WINDOW;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
if (nChannels == 2) {
|
if (nChannels == 2) {
|
||||||
if (!blockSwitchingControlRight->allowShortFrames) {
|
if (!blockSwitchingControlRight->allowShortFrames) {
|
||||||
if ( blockSwitchingControlRight->lastWindowSequence != LONG_WINDOW
|
if (blockSwitchingControlRight->lastWindowSequence != LONG_WINDOW &&
|
||||||
&& blockSwitchingControlRight->lastWindowSequence != STOP_WINDOW )
|
blockSwitchingControlRight->lastWindowSequence != STOP_WINDOW) {
|
||||||
{
|
|
||||||
blockSwitchingControlRight->lastWindowSequence = LONG_WINDOW;
|
blockSwitchingControlRight->lastWindowSequence = LONG_WINDOW;
|
||||||
blockSwitchingControlRight->windowShape = LOL_WINDOW;
|
blockSwitchingControlRight->windowShape = LOL_WINDOW;
|
||||||
}
|
}
|
||||||
@ -541,5 +580,3 @@ int FDKaacEnc_SyncBlockSwitching (
|
|||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,17 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/***************************** MPEG-4 AAC Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Author(s): M. Werner
|
Author(s): M. Werner
|
||||||
|
|
||||||
Description: Block switching
|
Description: Block switching
|
||||||
|
|
||||||
******************************************************************************/
|
*******************************************************************************/
|
||||||
|
|
||||||
#ifndef _BLOCK_SWITCH_H
|
#ifndef BLOCK_SWITCH_H
|
||||||
#define _BLOCK_SWITCH_H
|
#define BLOCK_SWITCH_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
@ -98,13 +110,15 @@ amm-info@iis.fraunhofer.de
|
|||||||
/****************** Defines ******************************/
|
/****************** Defines ******************************/
|
||||||
#define BLOCK_SWITCH_WINDOWS 8 /* number of windows for energy calculation */
|
#define BLOCK_SWITCH_WINDOWS 8 /* number of windows for energy calculation */
|
||||||
|
|
||||||
#define BLOCK_SWITCHING_IIR_LEN 2 /* Length of HighPass-IIR-Filter for Attack-Detection */
|
#define BLOCK_SWITCHING_IIR_LEN \
|
||||||
#define BLOCK_SWITCH_ENERGY_SHIFT 7 /* should be logDualis(BLOCK_SWITCH_WINDOW_LEN) to avoid overflow in windowNrgs. */
|
2 /* Length of HighPass-IIR-Filter for Attack-Detection */
|
||||||
|
#define BLOCK_SWITCH_ENERGY_SHIFT \
|
||||||
|
7 /* should be logDualis(BLOCK_SWITCH_WINDOW_LEN) to avoid overflow in \
|
||||||
|
windowNrgs. */
|
||||||
|
|
||||||
#define LAST_WINDOW 0
|
#define LAST_WINDOW 0
|
||||||
#define THIS_WINDOW 1
|
#define THIS_WINDOW 1
|
||||||
|
|
||||||
|
|
||||||
/****************** Structures ***************************/
|
/****************** Structures ***************************/
|
||||||
typedef struct {
|
typedef struct {
|
||||||
INT lastWindowSequence;
|
INT lastWindowSequence;
|
||||||
@ -121,26 +135,28 @@ typedef struct{
|
|||||||
INT groupLen[MAX_NO_OF_GROUPS];
|
INT groupLen[MAX_NO_OF_GROUPS];
|
||||||
FIXP_DBL maxWindowNrg; /* max energy in subwindows */
|
FIXP_DBL maxWindowNrg; /* max energy in subwindows */
|
||||||
|
|
||||||
FIXP_DBL windowNrg[2][BLOCK_SWITCH_WINDOWS]; /* time signal energy in Subwindows (last and current) */
|
FIXP_DBL
|
||||||
FIXP_DBL windowNrgF[2][BLOCK_SWITCH_WINDOWS]; /* filtered time signal energy in segments (last and current) */
|
windowNrg[2][BLOCK_SWITCH_WINDOWS]; /* time signal energy in Subwindows
|
||||||
|
(last and current) */
|
||||||
|
FIXP_DBL windowNrgF[2][BLOCK_SWITCH_WINDOWS]; /* filtered time signal energy
|
||||||
|
in segments (last and
|
||||||
|
current) */
|
||||||
FIXP_DBL accWindowNrg; /* recursively accumulated windowNrgF */
|
FIXP_DBL accWindowNrg; /* recursively accumulated windowNrgF */
|
||||||
|
|
||||||
FIXP_DBL iirStates[BLOCK_SWITCHING_IIR_LEN]; /* filter delay-line */
|
FIXP_DBL iirStates[BLOCK_SWITCHING_IIR_LEN]; /* filter delay-line */
|
||||||
|
|
||||||
} BLOCK_SWITCHING_CONTROL;
|
} BLOCK_SWITCHING_CONTROL;
|
||||||
|
|
||||||
|
void FDKaacEnc_InitBlockSwitching(
|
||||||
|
BLOCK_SWITCHING_CONTROL *blockSwitchingControl, INT isLowDelay);
|
||||||
|
|
||||||
|
int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl,
|
||||||
|
const INT granuleLength, const int isLFE,
|
||||||
|
const INT_PCM *pTimeSignal);
|
||||||
void FDKaacEnc_InitBlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, INT isLowDelay);
|
|
||||||
|
|
||||||
int FDKaacEnc_BlockSwitching(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, const INT granuleLength, const int isLFE, const INT_PCM *pTimeSignal);
|
|
||||||
|
|
||||||
int FDKaacEnc_SyncBlockSwitching(
|
int FDKaacEnc_SyncBlockSwitching(
|
||||||
BLOCK_SWITCHING_CONTROL *blockSwitchingControlLeft,
|
BLOCK_SWITCHING_CONTROL *blockSwitchingControlLeft,
|
||||||
BLOCK_SWITCHING_CONTROL *blockSwitchingControlRight,
|
BLOCK_SWITCHING_CONTROL *blockSwitchingControlRight, const INT noOfChannels,
|
||||||
const INT noOfChannels,
|
|
||||||
const INT commonWindow);
|
const INT commonWindow);
|
||||||
|
|
||||||
#endif /* #ifndef _BLOCK_SWITCH_H */
|
#endif /* #ifndef BLOCK_SWITCH_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,21 +90,22 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/************************* Fast MPEG AAC Audio Encoder **********************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: A. Groeschel
|
Author(s): A. Groeschel
|
||||||
contents/description: channel mapping functionality
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: channel mapping functionality
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "channel_map.h"
|
#include "channel_map.h"
|
||||||
#include "bitenc.h"
|
#include "bitenc.h"
|
||||||
#include "psy_const.h"
|
#include "psy_const.h"
|
||||||
#include "qc_data.h"
|
#include "qc_data.h"
|
||||||
#include "aacEnc_ram.h"
|
#include "aacEnc_ram.h"
|
||||||
|
#include "FDK_tools_rom.h"
|
||||||
|
|
||||||
/* channel_assignment treats the relationship of Input file channels
|
/* channel_assignment treats the relationship of Input file channels
|
||||||
to the encoder channels.
|
to the encoder channels.
|
||||||
@ -121,93 +133,43 @@ amm-info@iis.fraunhofer.de
|
|||||||
LFE 3 5 (LFE)
|
LFE 3 5 (LFE)
|
||||||
*/
|
*/
|
||||||
|
|
||||||
typedef struct {
|
|
||||||
|
|
||||||
CHANNEL_MODE encoderMode;
|
|
||||||
INT channel_assignment[/*(8)*/12];
|
|
||||||
|
|
||||||
} CHANNEL_ASSIGNMENT_INFO_TAB;
|
|
||||||
|
|
||||||
|
|
||||||
static const CHANNEL_ASSIGNMENT_INFO_TAB assignmentInfoTabMpeg[] =
|
|
||||||
{
|
|
||||||
{ MODE_INVALID, {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* invalid */
|
|
||||||
{ MODE_1, { 0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* mono */
|
|
||||||
{ MODE_2, { 0, 1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* stereo */
|
|
||||||
{ MODE_1_2, { 0, 1, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* 3ch */
|
|
||||||
{ MODE_1_2_1, { 0, 1, 2, 3,-1,-1,-1,-1,-1,-1,-1,-1} }, /* 4ch */
|
|
||||||
{ MODE_1_2_2, { 0, 1, 2, 3, 4,-1,-1,-1,-1,-1,-1,-1} }, /* 5ch */
|
|
||||||
{ MODE_1_2_2_1, { 0, 1, 2, 3, 4, 5,-1,-1,-1,-1,-1,-1} }, /* 5.1ch */
|
|
||||||
{ MODE_1_2_2_2_1, { 0, 1, 2, 3, 4, 5, 6, 7,-1,-1,-1,-1} }, /* 7.1ch */
|
|
||||||
{ MODE_7_1_REAR_SURROUND, { 0, 1, 2, 3, 4, 5, 6, 7,-1,-1,-1,-1} }, /* 7.1ch */
|
|
||||||
{ MODE_7_1_FRONT_CENTER, { 0, 1, 2, 3, 4, 5, 6, 7,-1,-1,-1,-1} } /* 7.1ch */
|
|
||||||
};
|
|
||||||
|
|
||||||
static const CHANNEL_ASSIGNMENT_INFO_TAB assignmentInfoTabWav[] =
|
|
||||||
{
|
|
||||||
{ MODE_INVALID, {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* invalid */
|
|
||||||
{ MODE_1, { 0,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* mono */
|
|
||||||
{ MODE_2, { 0, 1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* stereo */
|
|
||||||
{ MODE_1_2, { 2, 0, 1,-1,-1,-1,-1,-1,-1,-1,-1,-1} }, /* 3ch */
|
|
||||||
{ MODE_1_2_1, { 2, 0, 1, 3,-1,-1,-1,-1,-1,-1,-1,-1} }, /* 4ch */
|
|
||||||
{ MODE_1_2_2, { 2, 0, 1, 3, 4,-1,-1,-1,-1,-1,-1,-1} }, /* 5ch */
|
|
||||||
{ MODE_1_2_2_1, { 2, 0, 1, 4, 5, 3,-1,-1,-1,-1,-1,-1} }, /* 5.1ch */
|
|
||||||
{ MODE_1_2_2_2_1, { 2, 6, 7, 0, 1, 4, 5, 3,-1,-1,-1,-1} }, /* 7.1ch */
|
|
||||||
{ MODE_7_1_REAR_SURROUND, { 2, 0, 1, 6, 7, 4, 5, 3,-1,-1,-1,-1} }, /* 7.1ch */
|
|
||||||
{ MODE_7_1_FRONT_CENTER, { 2, 6, 7, 0, 1, 4, 5, 3,-1,-1,-1,-1} }, /* 7.1ch */
|
|
||||||
};
|
|
||||||
|
|
||||||
/* Channel mode configuration tab provides,
|
/* Channel mode configuration tab provides,
|
||||||
corresponding number of channels and elements
|
corresponding number of channels and elements
|
||||||
*/
|
*/
|
||||||
static const CHANNEL_MODE_CONFIG_TAB channelModeConfig[] =
|
static const CHANNEL_MODE_CONFIG_TAB channelModeConfig[] = {
|
||||||
{
|
{MODE_1, 1, 1, 1}, /* chCfg 1, SCE */
|
||||||
{ MODE_1, 1, 1, 1 }, /* SCE */
|
{MODE_2, 2, 2, 1}, /* chCfg 2, CPE */
|
||||||
{ MODE_2, 2, 2, 1 }, /* CPE */
|
{MODE_1_2, 3, 3, 2}, /* chCfg 3, SCE,CPE */
|
||||||
{ MODE_1_2, 3, 3, 2 }, /* SCE,CPE */
|
{MODE_1_2_1, 4, 4, 3}, /* chCfg 4, SCE,CPE,SCE */
|
||||||
{ MODE_1_2_1, 4, 4, 3 }, /* SCE,CPE,SCE */
|
{MODE_1_2_2, 5, 5, 3}, /* chCfg 5, SCE,CPE,CPE */
|
||||||
{ MODE_1_2_2, 5, 5, 3 }, /* SCE,CPE,CPE */
|
{MODE_1_2_2_1, 6, 5, 4}, /* chCfg 6, SCE,CPE,CPE,LFE */
|
||||||
{ MODE_1_2_2_1, 6, 5, 4 }, /* SCE,CPE,CPE,LFE */
|
{MODE_1_2_2_2_1, 8, 7, 5}, /* chCfg 7, SCE,CPE,CPE,CPE,LFE */
|
||||||
{ MODE_1_2_2_2_1, 8, 7, 5 }, /* SCE,CPE,CPE,CPE,LFE */
|
{MODE_6_1, 7, 6, 5}, /* chCfg 11, SCE,CPE,CPE,SCE,LFE */
|
||||||
{ MODE_7_1_REAR_SURROUND, 8, 7, 5 },
|
{MODE_7_1_BACK, 8, 7, 5}, /* chCfg 12, SCE,CPE,CPE,CPE,LFE */
|
||||||
{ MODE_7_1_FRONT_CENTER, 8, 7, 5 },
|
{MODE_7_1_TOP_FRONT, 8, 7, 5}, /* chCfg 14, SCE,CPE,CPE,LFE,CPE */
|
||||||
|
{MODE_7_1_REAR_SURROUND, 8, 7,
|
||||||
|
5}, /* same as MODE_7_1_BACK, SCE,CPE,CPE,CPE,LFE */
|
||||||
|
{MODE_7_1_FRONT_CENTER, 8, 7,
|
||||||
|
5}, /* same as MODE_1_2_2_2_1, SCE,CPE,CPE,CPE,LFE */
|
||||||
|
|
||||||
};
|
};
|
||||||
|
|
||||||
#define MAX_MODES (sizeof(assignmentInfoTabWav)/sizeof(CHANNEL_ASSIGNMENT_INFO_TAB))
|
AAC_ENCODER_ERROR FDKaacEnc_DetermineEncoderMode(CHANNEL_MODE* mode,
|
||||||
|
INT nChannels) {
|
||||||
const INT* FDKaacEnc_getChannelAssignment(CHANNEL_MODE encMode, CHANNEL_ORDER co)
|
|
||||||
{
|
|
||||||
const CHANNEL_ASSIGNMENT_INFO_TAB *pTab;
|
|
||||||
int i;
|
|
||||||
|
|
||||||
if (co == CH_ORDER_MPEG)
|
|
||||||
pTab = assignmentInfoTabMpeg;
|
|
||||||
else
|
|
||||||
pTab = assignmentInfoTabWav;
|
|
||||||
|
|
||||||
for(i=MAX_MODES-1; i>0; i--) {
|
|
||||||
if (encMode== pTab[i].encoderMode) {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return (pTab[i].channel_assignment);
|
|
||||||
}
|
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_DetermineEncoderMode(CHANNEL_MODE* mode, INT nChannels)
|
|
||||||
{
|
|
||||||
INT i;
|
INT i;
|
||||||
CHANNEL_MODE encMode = MODE_INVALID;
|
CHANNEL_MODE encMode = MODE_INVALID;
|
||||||
|
|
||||||
if (*mode == MODE_UNKNOWN) {
|
if (*mode == MODE_UNKNOWN) {
|
||||||
for (i=0; i<(INT)sizeof(channelModeConfig)/(INT)sizeof(CHANNEL_MODE_CONFIG_TAB); i++) {
|
for (i = 0; i < (INT)sizeof(channelModeConfig) /
|
||||||
|
(INT)sizeof(CHANNEL_MODE_CONFIG_TAB);
|
||||||
|
i++) {
|
||||||
if (channelModeConfig[i].nChannels == nChannels) {
|
if (channelModeConfig[i].nChannels == nChannels) {
|
||||||
encMode = channelModeConfig[i].encMode;
|
encMode = channelModeConfig[i].encMode;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
*mode = encMode;
|
*mode = encMode;
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/* check if valid channel configuration */
|
/* check if valid channel configuration */
|
||||||
if (FDKaacEnc_GetChannelModeConfiguration(*mode)->nChannels == nChannels) {
|
if (FDKaacEnc_GetChannelModeConfiguration(*mode)->nChannels == nChannels) {
|
||||||
encMode = *mode;
|
encMode = *mode;
|
||||||
@ -221,27 +183,31 @@ AAC_ENCODER_ERROR FDKaacEnc_DetermineEncoderMode(CHANNEL_MODE* mode, INT nChanne
|
|||||||
return AAC_ENC_OK;
|
return AAC_ENC_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
static INT FDKaacEnc_initElement (ELEMENT_INFO* elInfo, MP4_ELEMENT_ID elType, INT* cnt, CHANNEL_MODE mode, CHANNEL_ORDER co, INT* it_cnt, const FIXP_DBL relBits) {
|
static INT FDKaacEnc_initElement(ELEMENT_INFO* elInfo, MP4_ELEMENT_ID elType,
|
||||||
|
INT* cnt, FDK_channelMapDescr* mapDescr,
|
||||||
|
UINT mapIdx, INT* it_cnt,
|
||||||
|
const FIXP_DBL relBits) {
|
||||||
INT error = 0;
|
INT error = 0;
|
||||||
INT counter = *cnt;
|
INT counter = *cnt;
|
||||||
|
|
||||||
const INT *assign = FDKaacEnc_getChannelAssignment(mode, co);
|
|
||||||
|
|
||||||
elInfo->elType = elType;
|
elInfo->elType = elType;
|
||||||
elInfo->relativeBits = relBits;
|
elInfo->relativeBits = relBits;
|
||||||
|
|
||||||
switch (elInfo->elType) {
|
switch (elInfo->elType) {
|
||||||
case ID_SCE: case ID_LFE: case ID_CCE:
|
case ID_SCE:
|
||||||
|
case ID_LFE:
|
||||||
|
case ID_CCE:
|
||||||
elInfo->nChannelsInEl = 1;
|
elInfo->nChannelsInEl = 1;
|
||||||
elInfo->ChannelIndex[0]=assign[counter++];
|
elInfo->ChannelIndex[0] =
|
||||||
|
FDK_chMapDescr_getMapValue(mapDescr, counter++, mapIdx);
|
||||||
elInfo->instanceTag = it_cnt[elType]++;
|
elInfo->instanceTag = it_cnt[elType]++;
|
||||||
|
|
||||||
break;
|
break;
|
||||||
case ID_CPE:
|
case ID_CPE:
|
||||||
elInfo->nChannelsInEl = 2;
|
elInfo->nChannelsInEl = 2;
|
||||||
elInfo->ChannelIndex[0]=assign[counter++];
|
elInfo->ChannelIndex[0] =
|
||||||
elInfo->ChannelIndex[1]=assign[counter++];
|
FDK_chMapDescr_getMapValue(mapDescr, counter++, mapIdx);
|
||||||
|
elInfo->ChannelIndex[1] =
|
||||||
|
FDK_chMapDescr_getMapValue(mapDescr, counter++, mapIdx);
|
||||||
elInfo->instanceTag = it_cnt[elType]++;
|
elInfo->instanceTag = it_cnt[elType]++;
|
||||||
break;
|
break;
|
||||||
case ID_DSE:
|
case ID_DSE:
|
||||||
@ -250,28 +216,31 @@ static INT FDKaacEnc_initElement (ELEMENT_INFO* elInfo, MP4_ELEMENT_ID elType, I
|
|||||||
elInfo->ChannelIndex[1] = 0;
|
elInfo->ChannelIndex[1] = 0;
|
||||||
elInfo->instanceTag = it_cnt[elType]++;
|
elInfo->instanceTag = it_cnt[elType]++;
|
||||||
break;
|
break;
|
||||||
default: error=1;
|
default:
|
||||||
|
error = 1;
|
||||||
};
|
};
|
||||||
*cnt = counter;
|
*cnt = counter;
|
||||||
return error;
|
return error;
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_InitChannelMapping(CHANNEL_MODE mode, CHANNEL_ORDER co, CHANNEL_MAPPING* cm)
|
AAC_ENCODER_ERROR FDKaacEnc_InitChannelMapping(CHANNEL_MODE mode,
|
||||||
{
|
CHANNEL_ORDER co,
|
||||||
|
CHANNEL_MAPPING* cm) {
|
||||||
INT count = 0; /* count through coder channels */
|
INT count = 0; /* count through coder channels */
|
||||||
INT it_cnt[ID_END + 1];
|
INT it_cnt[ID_END + 1];
|
||||||
INT i;
|
INT i;
|
||||||
|
UINT mapIdx;
|
||||||
|
FDK_channelMapDescr mapDescr;
|
||||||
|
|
||||||
for (i=0; i<ID_END; i++)
|
for (i = 0; i < ID_END; i++) it_cnt[i] = 0;
|
||||||
it_cnt[i]=0;
|
|
||||||
|
|
||||||
FDKmemclear(cm, sizeof(CHANNEL_MAPPING));
|
FDKmemclear(cm, sizeof(CHANNEL_MAPPING));
|
||||||
|
|
||||||
/* init channel mapping*/
|
/* init channel mapping*/
|
||||||
for (i=0; i<(INT)sizeof(channelModeConfig)/(INT)sizeof(CHANNEL_MODE_CONFIG_TAB); i++) {
|
for (i = 0; i < (INT)sizeof(channelModeConfig) /
|
||||||
if (channelModeConfig[i].encMode==mode)
|
(INT)sizeof(CHANNEL_MODE_CONFIG_TAB);
|
||||||
{
|
i++) {
|
||||||
|
if (channelModeConfig[i].encMode == mode) {
|
||||||
cm->encMode = channelModeConfig[i].encMode;
|
cm->encMode = channelModeConfig[i].encMode;
|
||||||
cm->nChannels = channelModeConfig[i].nChannels;
|
cm->nChannels = channelModeConfig[i].nChannels;
|
||||||
cm->nChannelsEff = channelModeConfig[i].nChannelsEff;
|
cm->nChannelsEff = channelModeConfig[i].nChannelsEff;
|
||||||
@ -281,73 +250,133 @@ AAC_ENCODER_ERROR FDKaacEnc_InitChannelMapping(CHANNEL_MODE mode, CHANNEL_ORDER
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/* init map descriptor */
|
||||||
|
FDK_chMapDescr_init(&mapDescr, NULL, 0, (co == CH_ORDER_MPEG) ? 1 : 0);
|
||||||
|
switch (mode) {
|
||||||
|
case MODE_7_1_REAR_SURROUND: /* MODE_7_1_REAR_SURROUND is equivalent to
|
||||||
|
MODE_7_1_BACK */
|
||||||
|
mapIdx = (INT)MODE_7_1_BACK;
|
||||||
|
break;
|
||||||
|
case MODE_7_1_FRONT_CENTER: /* MODE_7_1_FRONT_CENTER is equivalent to
|
||||||
|
MODE_1_2_2_2_1 */
|
||||||
|
mapIdx = (INT)MODE_1_2_2_2_1;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
mapIdx =
|
||||||
|
(INT)mode > 14
|
||||||
|
? 0
|
||||||
|
: (INT)
|
||||||
|
mode; /* if channel config > 14 MPEG mapping will be used */
|
||||||
|
}
|
||||||
|
|
||||||
/* init element info struct */
|
/* init element info struct */
|
||||||
switch (mode) {
|
switch (mode) {
|
||||||
case MODE_1:
|
case MODE_1:
|
||||||
/* (mono) sce */
|
/* (mono) sce */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, mode, co, it_cnt, (FIXP_DBL)MAXVAL_DBL);
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, (FIXP_DBL)MAXVAL_DBL);
|
||||||
break;
|
break;
|
||||||
case MODE_2:
|
case MODE_2:
|
||||||
/* (stereo) cpe */
|
/* (stereo) cpe */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[0], ID_CPE, &count, mode, co, it_cnt, (FIXP_DBL)MAXVAL_DBL);
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, (FIXP_DBL)MAXVAL_DBL);
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case MODE_1_2:
|
case MODE_1_2:
|
||||||
/* sce + cpe */
|
/* sce + cpe */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.4f));
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.6f));
|
it_cnt, FL2FXCONST_DBL(0.4f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.6f));
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case MODE_1_2_1:
|
case MODE_1_2_1:
|
||||||
/* sce + cpe + sce */
|
/* sce + cpe + sce */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.3f));
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.4f));
|
it_cnt, FL2FXCONST_DBL(0.3f));
|
||||||
FDKaacEnc_initElement(&cm->elInfo[2], ID_SCE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.3f));
|
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.4f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[2], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.3f));
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case MODE_1_2_2:
|
case MODE_1_2_2:
|
||||||
/* sce + cpe + cpe */
|
/* sce + cpe + cpe */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.26f));
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.37f));
|
it_cnt, FL2FXCONST_DBL(0.26f));
|
||||||
FDKaacEnc_initElement(&cm->elInfo[2], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.37f));
|
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.37f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[2], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.37f));
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case MODE_1_2_2_1:
|
case MODE_1_2_2_1:
|
||||||
/* (5.1) sce + cpe + cpe + lfe */
|
/* (5.1) sce + cpe + cpe + lfe */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.24f));
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.35f));
|
it_cnt, FL2FXCONST_DBL(0.24f));
|
||||||
FDKaacEnc_initElement(&cm->elInfo[2], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.35f));
|
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
FDKaacEnc_initElement(&cm->elInfo[3], ID_LFE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.06f));
|
it_cnt, FL2FXCONST_DBL(0.35f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[2], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.35f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[3], ID_LFE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.06f));
|
||||||
|
break;
|
||||||
|
|
||||||
|
case MODE_6_1:
|
||||||
|
/* (6.1) sce + cpe + cpe + sce + lfe */
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.2f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.275f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[2], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.275f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[3], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.2f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[4], ID_LFE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.05f));
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case MODE_1_2_2_2_1:
|
case MODE_1_2_2_2_1:
|
||||||
|
case MODE_7_1_BACK:
|
||||||
|
case MODE_7_1_TOP_FRONT:
|
||||||
case MODE_7_1_REAR_SURROUND:
|
case MODE_7_1_REAR_SURROUND:
|
||||||
case MODE_7_1_FRONT_CENTER:
|
case MODE_7_1_FRONT_CENTER: {
|
||||||
/* (7.1) sce + cpe + cpe + cpe + lfe */
|
/* (7.1) sce + cpe + cpe + cpe + lfe */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.18f));
|
/* (7.1 top) sce + cpe + cpe + lfe + cpe */
|
||||||
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.26f));
|
|
||||||
FDKaacEnc_initElement(&cm->elInfo[2], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.26f));
|
FDKaacEnc_initElement(&cm->elInfo[0], ID_SCE, &count, &mapDescr, mapIdx,
|
||||||
FDKaacEnc_initElement(&cm->elInfo[3], ID_CPE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.26f));
|
it_cnt, FL2FXCONST_DBL(0.18f));
|
||||||
FDKaacEnc_initElement(&cm->elInfo[4], ID_LFE, &count, mode, co, it_cnt, FL2FXCONST_DBL(0.04f));
|
FDKaacEnc_initElement(&cm->elInfo[1], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.26f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[2], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.26f));
|
||||||
|
if (mode != MODE_7_1_TOP_FRONT) {
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[3], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.26f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[4], ID_LFE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.04f));
|
||||||
|
} else {
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[3], ID_LFE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.04f));
|
||||||
|
FDKaacEnc_initElement(&cm->elInfo[4], ID_CPE, &count, &mapDescr, mapIdx,
|
||||||
|
it_cnt, FL2FXCONST_DBL(0.26f));
|
||||||
|
}
|
||||||
break;
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
default:
|
default:
|
||||||
//*chMap=0;
|
//*chMap=0;
|
||||||
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
|
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
FDK_ASSERT(cm->nElements <= ((8)));
|
||||||
FDK_ASSERT(cm->nElements<=(8));
|
|
||||||
|
|
||||||
|
|
||||||
return AAC_ENC_OK;
|
return AAC_ENC_OK;
|
||||||
}
|
}
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE* hQC, CHANNEL_MAPPING* cm,
|
||||||
CHANNEL_MAPPING *cm,
|
INT bitrateTot, INT averageBitsTot,
|
||||||
INT bitrateTot,
|
INT maxChannelBits) {
|
||||||
INT averageBitsTot,
|
|
||||||
INT maxChannelBits)
|
|
||||||
{
|
|
||||||
int sc_brTot = CountLeadingBits(bitrateTot);
|
int sc_brTot = CountLeadingBits(bitrateTot);
|
||||||
|
|
||||||
switch (cm->encMode) {
|
switch (cm->encMode) {
|
||||||
@ -372,8 +401,10 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
|||||||
FIXP_DBL sceRate = cm->elInfo[0].relativeBits;
|
FIXP_DBL sceRate = cm->elInfo[0].relativeBits;
|
||||||
FIXP_DBL cpeRate = cm->elInfo[1].relativeBits;
|
FIXP_DBL cpeRate = cm->elInfo[1].relativeBits;
|
||||||
|
|
||||||
hQC->elementBits[0]->chBitrateEl = fMult(sceRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
hQC->elementBits[0]->chBitrateEl =
|
||||||
hQC->elementBits[1]->chBitrateEl = fMult(cpeRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
fMult(sceRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
|
hQC->elementBits[1]->chBitrateEl =
|
||||||
|
fMult(cpeRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
|
||||||
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
||||||
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
||||||
@ -388,9 +419,12 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
|||||||
FIXP_DBL cpeRate = cm->elInfo[1].relativeBits;
|
FIXP_DBL cpeRate = cm->elInfo[1].relativeBits;
|
||||||
FIXP_DBL sce2Rate = cm->elInfo[2].relativeBits;
|
FIXP_DBL sce2Rate = cm->elInfo[2].relativeBits;
|
||||||
|
|
||||||
hQC->elementBits[0]->chBitrateEl = fMult(sce1Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
hQC->elementBits[0]->chBitrateEl =
|
||||||
hQC->elementBits[1]->chBitrateEl = fMult(cpeRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
fMult(sce1Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
hQC->elementBits[2]->chBitrateEl = fMult(sce2Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
hQC->elementBits[1]->chBitrateEl =
|
||||||
|
fMult(cpeRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[2]->chBitrateEl =
|
||||||
|
fMult(sce2Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
|
|
||||||
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
||||||
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
||||||
@ -406,16 +440,18 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
|||||||
FIXP_DBL cpe1Rate = cm->elInfo[1].relativeBits;
|
FIXP_DBL cpe1Rate = cm->elInfo[1].relativeBits;
|
||||||
FIXP_DBL cpe2Rate = cm->elInfo[2].relativeBits;
|
FIXP_DBL cpe2Rate = cm->elInfo[2].relativeBits;
|
||||||
|
|
||||||
hQC->elementBits[0]->chBitrateEl = fMult(sceRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
hQC->elementBits[0]->chBitrateEl =
|
||||||
hQC->elementBits[1]->chBitrateEl = fMult(cpe1Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
fMult(sceRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
hQC->elementBits[2]->chBitrateEl = fMult(cpe2Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
hQC->elementBits[1]->chBitrateEl =
|
||||||
|
fMult(cpe1Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[2]->chBitrateEl =
|
||||||
|
fMult(cpe2Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
|
||||||
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
||||||
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
||||||
hQC->elementBits[2]->maxBitsEl = 2 * maxChannelBits;
|
hQC->elementBits[2]->maxBitsEl = 2 * maxChannelBits;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
case MODE_1_2_2_1: {
|
case MODE_1_2_2_1: {
|
||||||
/* (5.1) sce + cpe + cpe + lfe */
|
/* (5.1) sce + cpe + cpe + lfe */
|
||||||
hQC->elementBits[0]->relativeBitsEl = cm->elInfo[0].relativeBits;
|
hQC->elementBits[0]->relativeBitsEl = cm->elInfo[0].relativeBits;
|
||||||
@ -427,20 +463,30 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
|||||||
FIXP_DBL cpe2Rate = cm->elInfo[2].relativeBits;
|
FIXP_DBL cpe2Rate = cm->elInfo[2].relativeBits;
|
||||||
FIXP_DBL lfeRate = cm->elInfo[3].relativeBits;
|
FIXP_DBL lfeRate = cm->elInfo[3].relativeBits;
|
||||||
|
|
||||||
int maxBitsTot = maxChannelBits * 5; /* LFE does not add to bit reservoir */
|
int maxBitsTot =
|
||||||
|
maxChannelBits * 5; /* LFE does not add to bit reservoir */
|
||||||
int sc = CountLeadingBits(fixMax(maxChannelBits, averageBitsTot));
|
int sc = CountLeadingBits(fixMax(maxChannelBits, averageBitsTot));
|
||||||
int maxLfeBits = (int) FDKmax ( (INT)((fMult(lfeRate,(FIXP_DBL)(maxChannelBits<<sc))>>sc)<<1),
|
int maxLfeBits = (int)fMax(
|
||||||
(INT)((fMult(FL2FXCONST_DBL(1.1f/2.f),fMult(lfeRate,(FIXP_DBL)(averageBitsTot<<sc)))<<1)>>sc) );
|
(INT)((fMult(lfeRate, (FIXP_DBL)(maxChannelBits << sc)) >> sc) << 1),
|
||||||
|
(INT)((fMult(FL2FXCONST_DBL(1.1f / 2.f),
|
||||||
|
fMult(lfeRate, (FIXP_DBL)(averageBitsTot << sc)))
|
||||||
|
<< 1) >>
|
||||||
|
sc));
|
||||||
|
|
||||||
maxChannelBits = (maxBitsTot - maxLfeBits);
|
maxChannelBits = (maxBitsTot - maxLfeBits);
|
||||||
sc = CountLeadingBits(maxChannelBits);
|
sc = CountLeadingBits(maxChannelBits);
|
||||||
|
|
||||||
maxChannelBits = fMult((FIXP_DBL)maxChannelBits<<sc,GetInvInt(5))>>sc;
|
maxChannelBits =
|
||||||
|
fMult((FIXP_DBL)maxChannelBits << sc, GetInvInt(5)) >> sc;
|
||||||
|
|
||||||
hQC->elementBits[0]->chBitrateEl = fMult(sceRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
hQC->elementBits[0]->chBitrateEl =
|
||||||
hQC->elementBits[1]->chBitrateEl = fMult(cpe1Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
fMult(sceRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
hQC->elementBits[2]->chBitrateEl = fMult(cpe2Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
hQC->elementBits[1]->chBitrateEl =
|
||||||
hQC->elementBits[3]->chBitrateEl = fMult(lfeRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
fMult(cpe1Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[2]->chBitrateEl =
|
||||||
|
fMult(cpe2Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[3]->chBitrateEl =
|
||||||
|
fMult(lfeRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
|
|
||||||
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
||||||
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
||||||
@ -449,31 +495,91 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
|||||||
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
case MODE_6_1: {
|
||||||
|
/* (6.1) sce + cpe + cpe + sce + lfe */
|
||||||
|
FIXP_DBL sceRate = hQC->elementBits[0]->relativeBitsEl =
|
||||||
|
cm->elInfo[0].relativeBits;
|
||||||
|
FIXP_DBL cpe1Rate = hQC->elementBits[1]->relativeBitsEl =
|
||||||
|
cm->elInfo[1].relativeBits;
|
||||||
|
FIXP_DBL cpe2Rate = hQC->elementBits[2]->relativeBitsEl =
|
||||||
|
cm->elInfo[2].relativeBits;
|
||||||
|
FIXP_DBL sce2Rate = hQC->elementBits[3]->relativeBitsEl =
|
||||||
|
cm->elInfo[3].relativeBits;
|
||||||
|
FIXP_DBL lfeRate = hQC->elementBits[4]->relativeBitsEl =
|
||||||
|
cm->elInfo[4].relativeBits;
|
||||||
|
|
||||||
|
int maxBitsTot =
|
||||||
|
maxChannelBits * 6; /* LFE does not add to bit reservoir */
|
||||||
|
int sc = CountLeadingBits(fixMax(maxChannelBits, averageBitsTot));
|
||||||
|
int maxLfeBits = (int)fMax(
|
||||||
|
(INT)((fMult(lfeRate, (FIXP_DBL)(maxChannelBits << sc)) >> sc) << 1),
|
||||||
|
(INT)((fMult(FL2FXCONST_DBL(1.1f / 2.f),
|
||||||
|
fMult(lfeRate, (FIXP_DBL)(averageBitsTot << sc)))
|
||||||
|
<< 1) >>
|
||||||
|
sc));
|
||||||
|
|
||||||
|
maxChannelBits = (maxBitsTot - maxLfeBits) / 6;
|
||||||
|
|
||||||
|
hQC->elementBits[0]->chBitrateEl =
|
||||||
|
fMult(sceRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
|
hQC->elementBits[1]->chBitrateEl =
|
||||||
|
fMult(cpe1Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[2]->chBitrateEl =
|
||||||
|
fMult(cpe2Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[3]->chBitrateEl =
|
||||||
|
fMult(sce2Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[4]->chBitrateEl =
|
||||||
|
fMult(lfeRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
|
|
||||||
|
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
||||||
|
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
||||||
|
hQC->elementBits[2]->maxBitsEl = 2 * maxChannelBits;
|
||||||
|
hQC->elementBits[3]->maxBitsEl = maxChannelBits;
|
||||||
|
hQC->elementBits[4]->maxBitsEl = maxLfeBits;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case MODE_7_1_TOP_FRONT:
|
||||||
|
case MODE_7_1_BACK:
|
||||||
case MODE_7_1_REAR_SURROUND:
|
case MODE_7_1_REAR_SURROUND:
|
||||||
case MODE_7_1_FRONT_CENTER:
|
case MODE_7_1_FRONT_CENTER:
|
||||||
case MODE_1_2_2_2_1: {
|
case MODE_1_2_2_2_1: {
|
||||||
int cpe3Idx = 3;
|
int cpe3Idx = (cm->encMode != MODE_7_1_TOP_FRONT) ? 3 : 4;
|
||||||
int lfeIdx = 4;
|
int lfeIdx = (cm->encMode != MODE_7_1_TOP_FRONT) ? 4 : 3;
|
||||||
|
|
||||||
/* (7.1) sce + cpe + cpe + cpe + lfe */
|
/* (7.1) sce + cpe + cpe + cpe + lfe */
|
||||||
FIXP_DBL sceRate = hQC->elementBits[0]->relativeBitsEl = cm->elInfo[0].relativeBits;
|
FIXP_DBL sceRate = hQC->elementBits[0]->relativeBitsEl =
|
||||||
FIXP_DBL cpe1Rate = hQC->elementBits[1]->relativeBitsEl = cm->elInfo[1].relativeBits;
|
cm->elInfo[0].relativeBits;
|
||||||
FIXP_DBL cpe2Rate = hQC->elementBits[2]->relativeBitsEl = cm->elInfo[2].relativeBits;
|
FIXP_DBL cpe1Rate = hQC->elementBits[1]->relativeBitsEl =
|
||||||
FIXP_DBL cpe3Rate = hQC->elementBits[cpe3Idx]->relativeBitsEl = cm->elInfo[cpe3Idx].relativeBits;
|
cm->elInfo[1].relativeBits;
|
||||||
FIXP_DBL lfeRate = hQC->elementBits[lfeIdx]->relativeBitsEl = cm->elInfo[lfeIdx].relativeBits;
|
FIXP_DBL cpe2Rate = hQC->elementBits[2]->relativeBitsEl =
|
||||||
|
cm->elInfo[2].relativeBits;
|
||||||
|
FIXP_DBL cpe3Rate = hQC->elementBits[cpe3Idx]->relativeBitsEl =
|
||||||
|
cm->elInfo[cpe3Idx].relativeBits;
|
||||||
|
FIXP_DBL lfeRate = hQC->elementBits[lfeIdx]->relativeBitsEl =
|
||||||
|
cm->elInfo[lfeIdx].relativeBits;
|
||||||
|
|
||||||
int maxBitsTot = maxChannelBits * 7; /* LFE does not add to bit reservoir */
|
int maxBitsTot =
|
||||||
|
maxChannelBits * 7; /* LFE does not add to bit reservoir */
|
||||||
int sc = CountLeadingBits(fixMax(maxChannelBits, averageBitsTot));
|
int sc = CountLeadingBits(fixMax(maxChannelBits, averageBitsTot));
|
||||||
int maxLfeBits = (int) FDKmax ( (INT)((fMult(lfeRate,(FIXP_DBL)(maxChannelBits<<sc))>>sc)<<1),
|
int maxLfeBits = (int)fMax(
|
||||||
(INT)((fMult(FL2FXCONST_DBL(1.1f/2.f),fMult(lfeRate,(FIXP_DBL)(averageBitsTot<<sc)))<<1)>>sc) );
|
(INT)((fMult(lfeRate, (FIXP_DBL)(maxChannelBits << sc)) >> sc) << 1),
|
||||||
|
(INT)((fMult(FL2FXCONST_DBL(1.1f / 2.f),
|
||||||
|
fMult(lfeRate, (FIXP_DBL)(averageBitsTot << sc)))
|
||||||
|
<< 1) >>
|
||||||
|
sc));
|
||||||
|
|
||||||
maxChannelBits = (maxBitsTot - maxLfeBits) / 7;
|
maxChannelBits = (maxBitsTot - maxLfeBits) / 7;
|
||||||
|
|
||||||
hQC->elementBits[0]->chBitrateEl = fMult(sceRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
hQC->elementBits[0]->chBitrateEl =
|
||||||
hQC->elementBits[1]->chBitrateEl = fMult(cpe1Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
fMult(sceRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
hQC->elementBits[2]->chBitrateEl = fMult(cpe2Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
hQC->elementBits[1]->chBitrateEl =
|
||||||
hQC->elementBits[cpe3Idx]->chBitrateEl = fMult(cpe3Rate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>(sc_brTot+1);
|
fMult(cpe1Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
hQC->elementBits[lfeIdx]->chBitrateEl = fMult(lfeRate, (FIXP_DBL)(bitrateTot<<sc_brTot))>>sc_brTot;
|
hQC->elementBits[2]->chBitrateEl =
|
||||||
|
fMult(cpe2Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[cpe3Idx]->chBitrateEl =
|
||||||
|
fMult(cpe3Rate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> (sc_brTot + 1);
|
||||||
|
hQC->elementBits[lfeIdx]->chBitrateEl =
|
||||||
|
fMult(lfeRate, (FIXP_DBL)(bitrateTot << sc_brTot)) >> sc_brTot;
|
||||||
|
|
||||||
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
hQC->elementBits[0]->maxBitsEl = maxChannelBits;
|
||||||
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
hQC->elementBits[1]->maxBitsEl = 2 * maxChannelBits;
|
||||||
@ -482,6 +588,7 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
|||||||
hQC->elementBits[lfeIdx]->maxBitsEl = maxLfeBits;
|
hQC->elementBits[lfeIdx]->maxBitsEl = maxLfeBits;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
default:
|
default:
|
||||||
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
|
return AAC_ENC_UNSUPPORTED_CHANNELCONFIG;
|
||||||
}
|
}
|
||||||
@ -510,23 +617,27 @@ AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
|||||||
/********************************************************************************/
|
/********************************************************************************/
|
||||||
|
|
||||||
ELEMENT_MODE FDKaacEnc_GetMonoStereoMode(const CHANNEL_MODE mode) {
|
ELEMENT_MODE FDKaacEnc_GetMonoStereoMode(const CHANNEL_MODE mode) {
|
||||||
|
|
||||||
ELEMENT_MODE monoStereoSetting = EL_MODE_INVALID;
|
ELEMENT_MODE monoStereoSetting = EL_MODE_INVALID;
|
||||||
|
|
||||||
switch (mode) {
|
switch (mode) {
|
||||||
case MODE_1: /* mono setups */
|
case MODE_1: /* mono setups */
|
||||||
monoStereoSetting = EL_MODE_MONO;
|
monoStereoSetting = EL_MODE_MONO;
|
||||||
break;
|
break;
|
||||||
|
|
||||||
case MODE_2: /* stereo setups */
|
case MODE_2: /* stereo setups */
|
||||||
case MODE_1_2:
|
case MODE_1_2:
|
||||||
case MODE_1_2_1:
|
case MODE_1_2_1:
|
||||||
case MODE_1_2_2:
|
case MODE_1_2_2:
|
||||||
case MODE_1_2_2_1:
|
case MODE_1_2_2_1:
|
||||||
|
case MODE_6_1:
|
||||||
case MODE_1_2_2_2_1:
|
case MODE_1_2_2_2_1:
|
||||||
case MODE_7_1_REAR_SURROUND:
|
case MODE_7_1_REAR_SURROUND:
|
||||||
case MODE_7_1_FRONT_CENTER:
|
case MODE_7_1_FRONT_CENTER:
|
||||||
|
case MODE_7_1_BACK:
|
||||||
|
case MODE_7_1_TOP_FRONT:
|
||||||
monoStereoSetting = EL_MODE_STEREO;
|
monoStereoSetting = EL_MODE_STEREO;
|
||||||
break;
|
break;
|
||||||
|
|
||||||
default: /* error */
|
default: /* error */
|
||||||
monoStereoSetting = EL_MODE_INVALID;
|
monoStereoSetting = EL_MODE_INVALID;
|
||||||
break;
|
break;
|
||||||
@ -535,15 +646,16 @@ ELEMENT_MODE FDKaacEnc_GetMonoStereoMode(const CHANNEL_MODE mode){
|
|||||||
return monoStereoSetting;
|
return monoStereoSetting;
|
||||||
}
|
}
|
||||||
|
|
||||||
const CHANNEL_MODE_CONFIG_TAB* FDKaacEnc_GetChannelModeConfiguration(const CHANNEL_MODE mode)
|
const CHANNEL_MODE_CONFIG_TAB* FDKaacEnc_GetChannelModeConfiguration(
|
||||||
{
|
const CHANNEL_MODE mode) {
|
||||||
INT i;
|
INT i;
|
||||||
const CHANNEL_MODE_CONFIG_TAB* cm_config = NULL;
|
const CHANNEL_MODE_CONFIG_TAB* cm_config = NULL;
|
||||||
|
|
||||||
/* get channel mode config */
|
/* get channel mode config */
|
||||||
for (i=0; i<(INT)sizeof(channelModeConfig)/(INT)sizeof(CHANNEL_MODE_CONFIG_TAB); i++) {
|
for (i = 0; i < (INT)sizeof(channelModeConfig) /
|
||||||
if (channelModeConfig[i].encMode==mode)
|
(INT)sizeof(CHANNEL_MODE_CONFIG_TAB);
|
||||||
{
|
i++) {
|
||||||
|
if (channelModeConfig[i].encMode == mode) {
|
||||||
cm_config = &channelModeConfig[i];
|
cm_config = &channelModeConfig[i];
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,18 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/************************* Fast MPEG AAC Audio Encoder **********************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: A. Groeschel
|
Author(s): A. Groeschel
|
||||||
contents/description: channel mapping functionality
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: channel mapping functionality
|
||||||
|
|
||||||
#ifndef _CHANNEL_MAP_H
|
*******************************************************************************/
|
||||||
#define _CHANNEL_MAP_H
|
|
||||||
|
|
||||||
|
#ifndef CHANNEL_MAP_H
|
||||||
|
#define CHANNEL_MAP_H
|
||||||
|
|
||||||
#include "aacenc.h"
|
#include "aacenc.h"
|
||||||
#include "psy_const.h"
|
#include "psy_const.h"
|
||||||
@ -103,14 +114,8 @@ typedef struct {
|
|||||||
INT nElements;
|
INT nElements;
|
||||||
} CHANNEL_MODE_CONFIG_TAB;
|
} CHANNEL_MODE_CONFIG_TAB;
|
||||||
|
|
||||||
|
|
||||||
/* Element mode */
|
/* Element mode */
|
||||||
typedef enum {
|
typedef enum { EL_MODE_INVALID = 0, EL_MODE_MONO, EL_MODE_STEREO } ELEMENT_MODE;
|
||||||
EL_MODE_INVALID = 0,
|
|
||||||
EL_MODE_MONO,
|
|
||||||
EL_MODE_STEREO
|
|
||||||
} ELEMENT_MODE;
|
|
||||||
|
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_DetermineEncoderMode(CHANNEL_MODE* mode,
|
AAC_ENCODER_ERROR FDKaacEnc_DetermineEncoderMode(CHANNEL_MODE* mode,
|
||||||
INT nChannels);
|
INT nChannels);
|
||||||
@ -119,14 +124,13 @@ AAC_ENCODER_ERROR FDKaacEnc_InitChannelMapping(CHANNEL_MODE mode,
|
|||||||
CHANNEL_ORDER co,
|
CHANNEL_ORDER co,
|
||||||
CHANNEL_MAPPING* chMap);
|
CHANNEL_MAPPING* chMap);
|
||||||
|
|
||||||
AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE *hQC,
|
AAC_ENCODER_ERROR FDKaacEnc_InitElementBits(QC_STATE* hQC, CHANNEL_MAPPING* cm,
|
||||||
CHANNEL_MAPPING *cm,
|
INT bitrateTot, INT averageBitsTot,
|
||||||
INT bitrateTot,
|
|
||||||
INT averageBitsTot,
|
|
||||||
INT maxChannelBits);
|
INT maxChannelBits);
|
||||||
|
|
||||||
ELEMENT_MODE FDKaacEnc_GetMonoStereoMode(const CHANNEL_MODE mode);
|
ELEMENT_MODE FDKaacEnc_GetMonoStereoMode(const CHANNEL_MODE mode);
|
||||||
|
|
||||||
const CHANNEL_MODE_CONFIG_TAB* FDKaacEnc_GetChannelModeConfiguration(const CHANNEL_MODE mode);
|
const CHANNEL_MODE_CONFIG_TAB* FDKaacEnc_GetChannelModeConfiguration(
|
||||||
|
const CHANNEL_MODE mode);
|
||||||
|
|
||||||
#endif /* CHANNEL_MAP_H */
|
#endif /* CHANNEL_MAP_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Werner
|
Author(s): M. Werner
|
||||||
contents/description: Chaos measure calculation
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Chaos measure calculation
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "chaosmeasure.h"
|
#include "chaosmeasure.h"
|
||||||
|
|
||||||
@ -94,40 +106,63 @@ amm-info@iis.fraunhofer.de
|
|||||||
functionname: FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast
|
functionname: FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast
|
||||||
description: Eberlein method of chaos measure calculation by high-pass
|
description: Eberlein method of chaos measure calculation by high-pass
|
||||||
filtering amplitude spectrum
|
filtering amplitude spectrum
|
||||||
A special case of FDKaacEnc_CalculateChaosMeasureTonalGeneric --
|
A special case of FDKaacEnc_CalculateChaosMeasureTonalGeneric
|
||||||
highly optimized
|
-- highly optimized
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
static void
|
static void FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast(
|
||||||
FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast( FIXP_DBL *RESTRICT paMDCTDataNM0,
|
FIXP_DBL *RESTRICT paMDCTDataNM0, INT numberOfLines,
|
||||||
INT numberOfLines,
|
FIXP_DBL *RESTRICT chaosMeasure) {
|
||||||
FIXP_DBL *RESTRICT chaosMeasure )
|
|
||||||
{
|
|
||||||
INT i, j;
|
INT i, j;
|
||||||
|
|
||||||
/* calculate chaos measure by "peak filter" */
|
/* calculate chaos measure by "peak filter" */
|
||||||
for (i=0; i<2; i++) {
|
|
||||||
/* make even and odd pass through data */
|
/* make even and odd pass through data */
|
||||||
FIXP_DBL left,center; /* left, center tap of filter */
|
FIXP_DBL left_0_div2,
|
||||||
|
center_0; /* left, center tap of filter, even numbered */
|
||||||
|
FIXP_DBL left_1_div2, center_1; /* left, center tap of filter, odd numbered */
|
||||||
|
|
||||||
left = (FIXP_DBL)((LONG)paMDCTDataNM0[i]^((LONG)paMDCTDataNM0[i]>>(DFRACT_BITS-1)));
|
left_0_div2 = (FIXP_DBL)(((LONG)paMDCTDataNM0[0] ^
|
||||||
center = (FIXP_DBL)((LONG)paMDCTDataNM0[i+2]^((LONG)paMDCTDataNM0[i+2]>>(DFRACT_BITS-1)));
|
((LONG)paMDCTDataNM0[0] >> (DFRACT_BITS - 1))) >>
|
||||||
|
1);
|
||||||
|
left_1_div2 = (FIXP_DBL)(((LONG)paMDCTDataNM0[1] ^
|
||||||
|
((LONG)paMDCTDataNM0[1] >> (DFRACT_BITS - 1))) >>
|
||||||
|
1);
|
||||||
|
center_0 = (FIXP_DBL)((LONG)paMDCTDataNM0[2] ^
|
||||||
|
((LONG)paMDCTDataNM0[2] >> (DFRACT_BITS - 1)));
|
||||||
|
center_1 = (FIXP_DBL)((LONG)paMDCTDataNM0[3] ^
|
||||||
|
((LONG)paMDCTDataNM0[3] >> (DFRACT_BITS - 1)));
|
||||||
|
|
||||||
for (j = i+2; j < numberOfLines - 2; j+=2) {
|
for (j = 2; j < numberOfLines - 2; j += 2) {
|
||||||
FIXP_DBL right = (FIXP_DBL)((LONG)paMDCTDataNM0[j+2]^((LONG)paMDCTDataNM0[j+2]>>(DFRACT_BITS-1)));
|
FIXP_DBL right_0 =
|
||||||
FIXP_DBL tmp = (left>>1)+(right>>1);
|
(FIXP_DBL)((LONG)paMDCTDataNM0[j + 2] ^
|
||||||
|
((LONG)paMDCTDataNM0[j + 2] >> (DFRACT_BITS - 1)));
|
||||||
|
FIXP_DBL tmp_0 = left_0_div2 + (right_0 >> 1);
|
||||||
|
FIXP_DBL right_1 =
|
||||||
|
(FIXP_DBL)((LONG)paMDCTDataNM0[j + 3] ^
|
||||||
|
((LONG)paMDCTDataNM0[j + 3] >> (DFRACT_BITS - 1)));
|
||||||
|
FIXP_DBL tmp_1 = left_1_div2 + (right_1 >> 1);
|
||||||
|
|
||||||
if (tmp < center ) {
|
if (tmp_0 < center_0) {
|
||||||
INT leadingBits = CntLeadingZeros(center)-1;
|
INT leadingBits = CntLeadingZeros(center_0) - 1;
|
||||||
tmp = schur_div(tmp<<leadingBits, center<<leadingBits, 8);
|
tmp_0 = schur_div(tmp_0 << leadingBits, center_0 << leadingBits, 8);
|
||||||
chaosMeasure[j] = fMult(tmp,tmp);
|
tmp_0 = fMult(tmp_0, tmp_0);
|
||||||
|
} else {
|
||||||
|
tmp_0 = (FIXP_DBL)MAXVAL_DBL;
|
||||||
}
|
}
|
||||||
else {
|
chaosMeasure[j + 0] = tmp_0;
|
||||||
chaosMeasure[j] = (FIXP_DBL)MAXVAL_DBL;
|
left_0_div2 = center_0 >> 1;
|
||||||
|
center_0 = right_0;
|
||||||
|
|
||||||
|
if (tmp_1 < center_1) {
|
||||||
|
INT leadingBits = CntLeadingZeros(center_1) - 1;
|
||||||
|
tmp_1 = schur_div(tmp_1 << leadingBits, center_1 << leadingBits, 8);
|
||||||
|
tmp_1 = fMult(tmp_1, tmp_1);
|
||||||
|
} else {
|
||||||
|
tmp_1 = (FIXP_DBL)MAXVAL_DBL;
|
||||||
}
|
}
|
||||||
|
|
||||||
left = center;
|
left_1_div2 = center_1 >> 1;
|
||||||
center = right;
|
center_1 = right_1;
|
||||||
}
|
chaosMeasure[j + 1] = tmp_1;
|
||||||
}
|
}
|
||||||
|
|
||||||
/* provide chaos measure for first few lines */
|
/* provide chaos measure for first few lines */
|
||||||
@ -139,7 +174,6 @@ FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast( FIXP_DBL *RESTRICT paMDCTDat
|
|||||||
chaosMeasure[i] = FL2FXCONST_DBL(0.5);
|
chaosMeasure[i] = FL2FXCONST_DBL(0.5);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*****************************************************************************
|
/*****************************************************************************
|
||||||
functionname: FDKaacEnc_CalculateChaosMeasure
|
functionname: FDKaacEnc_CalculateChaosMeasure
|
||||||
description: calculates a chaosmeasure for every line, different methods
|
description: calculates a chaosmeasure for every line, different methods
|
||||||
@ -148,14 +182,10 @@ FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast( FIXP_DBL *RESTRICT paMDCTDat
|
|||||||
input: MDCT data, number of lines
|
input: MDCT data, number of lines
|
||||||
output: chaosMeasure
|
output: chaosMeasure
|
||||||
*****************************************************************************/
|
*****************************************************************************/
|
||||||
void
|
void FDKaacEnc_CalculateChaosMeasure(FIXP_DBL *paMDCTDataNM0, INT numberOfLines,
|
||||||
FDKaacEnc_CalculateChaosMeasure( FIXP_DBL *paMDCTDataNM0,
|
|
||||||
INT numberOfLines,
|
|
||||||
FIXP_DBL *chaosMeasure)
|
FIXP_DBL *chaosMeasure)
|
||||||
|
|
||||||
{
|
{
|
||||||
FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast( paMDCTDataNM0,
|
FDKaacEnc_FDKaacEnc_CalculateChaosMeasurePeakFast(
|
||||||
numberOfLines,
|
paMDCTDataNM0, numberOfLines, chaosMeasure);
|
||||||
chaosMeasure );
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,25 +90,23 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M. Werner
|
Author(s): M. Werner
|
||||||
contents/description: Chaos measure calculation
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Chaos measure calculation
|
||||||
|
|
||||||
#ifndef __CHAOSMEASURE_H
|
*******************************************************************************/
|
||||||
#define __CHAOSMEASURE_H
|
|
||||||
|
#ifndef CHAOSMEASURE_H
|
||||||
|
#define CHAOSMEASURE_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
#include "psy_const.h"
|
#include "psy_const.h"
|
||||||
|
|
||||||
void
|
void FDKaacEnc_CalculateChaosMeasure(FIXP_DBL *paMDCTDataNM0, INT numberOfLines,
|
||||||
FDKaacEnc_CalculateChaosMeasure( FIXP_DBL *paMDCTDataNM0,
|
|
||||||
INT numberOfLines,
|
|
||||||
FIXP_DBL *chaosMeasure);
|
FIXP_DBL *chaosMeasure);
|
||||||
|
|
||||||
#endif
|
#endif /* CHAOSMEASURE_H */
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,14 +90,15 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M.Werner
|
Author(s): M.Werner
|
||||||
contents/description: Noiseless coder module
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Noiseless coder module
|
||||||
|
|
||||||
|
*******************************************************************************/
|
||||||
|
|
||||||
#include "dyn_bits.h"
|
#include "dyn_bits.h"
|
||||||
#include "bit_cnt.h"
|
#include "bit_cnt.h"
|
||||||
@ -97,18 +109,15 @@ amm-info@iis.fraunhofer.de
|
|||||||
|
|
||||||
typedef INT (*lookUpTable)[CODE_BOOK_ESC_NDX + 1];
|
typedef INT (*lookUpTable)[CODE_BOOK_ESC_NDX + 1];
|
||||||
|
|
||||||
static INT FDKaacEnc_getSideInfoBits(
|
static INT FDKaacEnc_getSideInfoBits(const SECTION_INFO* const huffsection,
|
||||||
const SECTION_INFO* const huffsection,
|
|
||||||
const SHORT* const sideInfoTab,
|
const SHORT* const sideInfoTab,
|
||||||
const INT useHCR
|
const INT useHCR) {
|
||||||
)
|
|
||||||
{
|
|
||||||
INT sideInfoBits;
|
INT sideInfoBits;
|
||||||
|
|
||||||
if ( useHCR && ((huffsection->codeBook == 11) || (huffsection->codeBook >= 16)) ) {
|
if (useHCR &&
|
||||||
|
((huffsection->codeBook == 11) || (huffsection->codeBook >= 16))) {
|
||||||
sideInfoBits = 5;
|
sideInfoBits = 5;
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
sideInfoBits = sideInfoTab[huffsection->sfbCnt];
|
sideInfoBits = sideInfoTab[huffsection->sfbCnt];
|
||||||
}
|
}
|
||||||
|
|
||||||
@ -117,43 +126,32 @@ static INT FDKaacEnc_getSideInfoBits(
|
|||||||
|
|
||||||
/* count bits using all possible tables */
|
/* count bits using all possible tables */
|
||||||
static void FDKaacEnc_buildBitLookUp(
|
static void FDKaacEnc_buildBitLookUp(
|
||||||
const SHORT* const quantSpectrum,
|
const SHORT* const quantSpectrum, const INT maxSfb,
|
||||||
const INT maxSfb,
|
const INT* const sfbOffset, const UINT* const sfbMax,
|
||||||
const INT* const sfbOffset,
|
|
||||||
const UINT* const sfbMax,
|
|
||||||
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
||||||
SECTION_INFO* const huffsection
|
SECTION_INFO* const huffsection) {
|
||||||
)
|
|
||||||
{
|
|
||||||
INT i, sfbWidth;
|
INT i, sfbWidth;
|
||||||
|
|
||||||
for (i = 0; i < maxSfb; i++)
|
for (i = 0; i < maxSfb; i++) {
|
||||||
{
|
|
||||||
huffsection[i].sfbCnt = 1;
|
huffsection[i].sfbCnt = 1;
|
||||||
huffsection[i].sfbStart = i;
|
huffsection[i].sfbStart = i;
|
||||||
huffsection[i].sectionBits = INVALID_BITCOUNT;
|
huffsection[i].sectionBits = INVALID_BITCOUNT;
|
||||||
huffsection[i].codeBook = -1;
|
huffsection[i].codeBook = -1;
|
||||||
sfbWidth = sfbOffset[i + 1] - sfbOffset[i];
|
sfbWidth = sfbOffset[i + 1] - sfbOffset[i];
|
||||||
FDKaacEnc_bitCount(quantSpectrum + sfbOffset[i], sfbWidth, sfbMax[i], bitLookUp[i]);
|
FDKaacEnc_bitCount(quantSpectrum + sfbOffset[i], sfbWidth, sfbMax[i],
|
||||||
|
bitLookUp[i]);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/* essential helper functions */
|
/* essential helper functions */
|
||||||
static INT FDKaacEnc_findBestBook(
|
static inline INT FDKaacEnc_findBestBook(const INT* const bc, INT* const book,
|
||||||
const INT* const bc,
|
const INT useVCB11) {
|
||||||
INT* const book,
|
|
||||||
const INT useVCB11
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT minBits = INVALID_BITCOUNT, j;
|
INT minBits = INVALID_BITCOUNT, j;
|
||||||
|
|
||||||
int end = CODE_BOOK_ESC_NDX;
|
int end = CODE_BOOK_ESC_NDX;
|
||||||
|
|
||||||
|
for (j = 0; j <= end; j++) {
|
||||||
for (j = 0; j <= end; j++)
|
if (bc[j] < minBits) {
|
||||||
{
|
|
||||||
if (bc[j] < minBits)
|
|
||||||
{
|
|
||||||
minBits = bc[j];
|
minBits = bc[j];
|
||||||
*book = j;
|
*book = j;
|
||||||
}
|
}
|
||||||
@ -161,114 +159,94 @@ static INT FDKaacEnc_findBestBook(
|
|||||||
return (minBits);
|
return (minBits);
|
||||||
}
|
}
|
||||||
|
|
||||||
static INT FDKaacEnc_findMinMergeBits(
|
static inline INT FDKaacEnc_findMinMergeBits(const INT* const bc1,
|
||||||
const INT* const bc1,
|
|
||||||
const INT* const bc2,
|
const INT* const bc2,
|
||||||
const INT useVCB11
|
const INT useVCB11) {
|
||||||
)
|
|
||||||
{
|
|
||||||
INT minBits = INVALID_BITCOUNT, j;
|
INT minBits = INVALID_BITCOUNT, j;
|
||||||
|
|
||||||
int end = CODE_BOOK_ESC_NDX;
|
DWORD_ALIGNED(bc1);
|
||||||
|
DWORD_ALIGNED(bc2);
|
||||||
|
|
||||||
|
for (j = 0; j <= CODE_BOOK_ESC_NDX; j++) {
|
||||||
for (j = 0; j <= end; j++)
|
minBits = fixMin(minBits, bc1[j] + bc2[j]);
|
||||||
{
|
|
||||||
if (bc1[j] + bc2[j] < minBits)
|
|
||||||
{
|
|
||||||
minBits = bc1[j] + bc2[j];
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
return (minBits);
|
return (minBits);
|
||||||
}
|
}
|
||||||
|
|
||||||
static void FDKaacEnc_mergeBitLookUp(
|
static inline void FDKaacEnc_mergeBitLookUp(INT* const RESTRICT bc1,
|
||||||
INT* const bc1,
|
const INT* const RESTRICT bc2) {
|
||||||
const INT* const bc2
|
|
||||||
)
|
|
||||||
{
|
|
||||||
int j;
|
int j;
|
||||||
|
|
||||||
for (j = 0; j <= CODE_BOOK_ESC_NDX; j++)
|
for (j = 0; j <= CODE_BOOK_ESC_NDX; j++) {
|
||||||
{
|
FDK_ASSERT(INVALID_BITCOUNT == 0x1FFFFFFF);
|
||||||
bc1[j] = fixMin(bc1[j] + bc2[j], INVALID_BITCOUNT);
|
bc1[j] = fixMin(bc1[j] + bc2[j], INVALID_BITCOUNT);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
static INT FDKaacEnc_findMaxMerge(
|
static inline INT FDKaacEnc_findMaxMerge(const INT* const mergeGainLookUp,
|
||||||
const INT* const mergeGainLookUp,
|
|
||||||
const SECTION_INFO* const huffsection,
|
const SECTION_INFO* const huffsection,
|
||||||
const INT maxSfb,
|
const INT maxSfb, INT* const maxNdx) {
|
||||||
INT* const maxNdx
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT i, maxMergeGain = 0;
|
INT i, maxMergeGain = 0;
|
||||||
|
int lastMaxNdx = 0;
|
||||||
|
|
||||||
for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt)
|
for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt) {
|
||||||
{
|
if (mergeGainLookUp[i] > maxMergeGain) {
|
||||||
if (mergeGainLookUp[i] > maxMergeGain)
|
|
||||||
{
|
|
||||||
maxMergeGain = mergeGainLookUp[i];
|
maxMergeGain = mergeGainLookUp[i];
|
||||||
*maxNdx = i;
|
lastMaxNdx = i;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
*maxNdx = lastMaxNdx;
|
||||||
return (maxMergeGain);
|
return (maxMergeGain);
|
||||||
}
|
}
|
||||||
|
|
||||||
static INT FDKaacEnc_CalcMergeGain(
|
static inline INT FDKaacEnc_CalcMergeGain(
|
||||||
const SECTION_INFO* const huffsection,
|
const SECTION_INFO* const huffsection,
|
||||||
const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
||||||
const SHORT* const sideInfoTab,
|
const SHORT* const sideInfoTab, const INT ndx1, const INT ndx2,
|
||||||
const INT ndx1,
|
const INT useVCB11) {
|
||||||
const INT ndx2,
|
|
||||||
const INT useVCB11
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT MergeGain, MergeBits, SplitBits;
|
INT MergeGain, MergeBits, SplitBits;
|
||||||
|
|
||||||
MergeBits = sideInfoTab[huffsection[ndx1].sfbCnt + huffsection[ndx2].sfbCnt] + FDKaacEnc_findMinMergeBits(bitLookUp[ndx1], bitLookUp[ndx2], useVCB11);
|
MergeBits =
|
||||||
SplitBits = huffsection[ndx1].sectionBits + huffsection[ndx2].sectionBits; /* Bit amount for splitted huffsections */
|
sideInfoTab[huffsection[ndx1].sfbCnt + huffsection[ndx2].sfbCnt] +
|
||||||
|
FDKaacEnc_findMinMergeBits(bitLookUp[ndx1], bitLookUp[ndx2], useVCB11);
|
||||||
|
SplitBits =
|
||||||
|
huffsection[ndx1].sectionBits +
|
||||||
|
huffsection[ndx2].sectionBits; /* Bit amount for splitted huffsections */
|
||||||
MergeGain = SplitBits - MergeBits;
|
MergeGain = SplitBits - MergeBits;
|
||||||
|
|
||||||
if ( (huffsection[ndx1].codeBook==CODE_BOOK_PNS_NO)||(huffsection[ndx2].codeBook==CODE_BOOK_PNS_NO)
|
if ((huffsection[ndx1].codeBook == CODE_BOOK_PNS_NO) ||
|
||||||
|| (huffsection[ndx1].codeBook==CODE_BOOK_IS_OUT_OF_PHASE_NO)||(huffsection[ndx2].codeBook==CODE_BOOK_IS_OUT_OF_PHASE_NO)
|
(huffsection[ndx2].codeBook == CODE_BOOK_PNS_NO) ||
|
||||||
|| (huffsection[ndx1].codeBook==CODE_BOOK_IS_IN_PHASE_NO)||(huffsection[ndx2].codeBook==CODE_BOOK_IS_IN_PHASE_NO)
|
(huffsection[ndx1].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
|
||||||
)
|
(huffsection[ndx2].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
|
||||||
{
|
(huffsection[ndx1].codeBook == CODE_BOOK_IS_IN_PHASE_NO) ||
|
||||||
|
(huffsection[ndx2].codeBook == CODE_BOOK_IS_IN_PHASE_NO)) {
|
||||||
MergeGain = -1;
|
MergeGain = -1;
|
||||||
}
|
}
|
||||||
|
|
||||||
return (MergeGain);
|
return (MergeGain);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* sectioning Stage 0:find minimum codbooks */
|
/* sectioning Stage 0:find minimum codbooks */
|
||||||
static void FDKaacEnc_gmStage0(
|
static void FDKaacEnc_gmStage0(
|
||||||
SECTION_INFO* const RESTRICT huffsection,
|
SECTION_INFO* const RESTRICT huffsection,
|
||||||
const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
const INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1], const INT maxSfb,
|
||||||
const INT maxSfb,
|
const INT* const noiseNrg, const INT* const isBook) {
|
||||||
const INT* const noiseNrg,
|
|
||||||
const INT* const isBook
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT i;
|
INT i;
|
||||||
|
|
||||||
for (i = 0; i < maxSfb; i++)
|
for (i = 0; i < maxSfb; i++) {
|
||||||
{
|
|
||||||
/* Side-Info bits will be calculated in Stage 1! */
|
/* Side-Info bits will be calculated in Stage 1! */
|
||||||
if (huffsection[i].sectionBits == INVALID_BITCOUNT)
|
if (huffsection[i].sectionBits == INVALID_BITCOUNT) {
|
||||||
{
|
|
||||||
/* intensity and pns codebooks are already allocated in bitcount.c */
|
/* intensity and pns codebooks are already allocated in bitcount.c */
|
||||||
if (noiseNrg[i] != NO_NOISE_PNS) {
|
if (noiseNrg[i] != NO_NOISE_PNS) {
|
||||||
huffsection[i].codeBook = CODE_BOOK_PNS_NO;
|
huffsection[i].codeBook = CODE_BOOK_PNS_NO;
|
||||||
huffsection[i].sectionBits = 0;
|
huffsection[i].sectionBits = 0;
|
||||||
}
|
} else if (isBook[i]) {
|
||||||
else if( isBook[i] ) {
|
|
||||||
huffsection[i].codeBook = isBook[i];
|
huffsection[i].codeBook = isBook[i];
|
||||||
huffsection[i].sectionBits = 0;
|
huffsection[i].sectionBits = 0;
|
||||||
}
|
} else {
|
||||||
else {
|
huffsection[i].sectionBits =
|
||||||
huffsection[i].sectionBits = FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook), 0); /* useVCB11 must be 0!!! */
|
FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook),
|
||||||
|
0); /* useVCB11 must be 0!!! */
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
@ -280,23 +258,17 @@ static void FDKaacEnc_gmStage0(
|
|||||||
*/
|
*/
|
||||||
static void FDKaacEnc_gmStage1(
|
static void FDKaacEnc_gmStage1(
|
||||||
SECTION_INFO* const RESTRICT huffsection,
|
SECTION_INFO* const RESTRICT huffsection,
|
||||||
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1], const INT maxSfb,
|
||||||
const INT maxSfb,
|
const SHORT* const sideInfoTab, const INT useVCB11) {
|
||||||
const SHORT* const sideInfoTab,
|
|
||||||
const INT useVCB11
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT mergeStart = 0, mergeEnd;
|
INT mergeStart = 0, mergeEnd;
|
||||||
|
|
||||||
do
|
do {
|
||||||
{
|
for (mergeEnd = mergeStart + 1; mergeEnd < maxSfb; mergeEnd++) {
|
||||||
for (mergeEnd = mergeStart + 1; mergeEnd < maxSfb; mergeEnd++)
|
|
||||||
{
|
|
||||||
if (huffsection[mergeStart].codeBook != huffsection[mergeEnd].codeBook)
|
if (huffsection[mergeStart].codeBook != huffsection[mergeEnd].codeBook)
|
||||||
break;
|
break;
|
||||||
|
|
||||||
|
/* we can merge. update tables, side info bits will be updated outside of
|
||||||
/* we can merge. update tables, side info bits will be updated outside of this loop */
|
* this loop */
|
||||||
huffsection[mergeStart].sfbCnt++;
|
huffsection[mergeStart].sfbCnt++;
|
||||||
huffsection[mergeStart].sectionBits += huffsection[mergeEnd].sectionBits;
|
huffsection[mergeStart].sectionBits += huffsection[mergeEnd].sectionBits;
|
||||||
|
|
||||||
@ -305,8 +277,10 @@ static void FDKaacEnc_gmStage1(
|
|||||||
}
|
}
|
||||||
|
|
||||||
/* add side info info bits */
|
/* add side info info bits */
|
||||||
huffsection[mergeStart].sectionBits += FDKaacEnc_getSideInfoBits(&huffsection[mergeStart], sideInfoTab, useVCB11);
|
huffsection[mergeStart].sectionBits += FDKaacEnc_getSideInfoBits(
|
||||||
huffsection[mergeEnd - 1].sfbStart = huffsection[mergeStart].sfbStart; /* speed up prev search */
|
&huffsection[mergeStart], sideInfoTab, useVCB11);
|
||||||
|
huffsection[mergeEnd - 1].sfbStart =
|
||||||
|
huffsection[mergeStart].sfbStart; /* speed up prev search */
|
||||||
|
|
||||||
mergeStart = mergeEnd;
|
mergeStart = mergeEnd;
|
||||||
|
|
||||||
@ -317,98 +291,71 @@ static void FDKaacEnc_gmStage1(
|
|||||||
sectioning Stage 2:greedy merge algorithm, merge connected sections with
|
sectioning Stage 2:greedy merge algorithm, merge connected sections with
|
||||||
maximum bit gain until no more gain is possible
|
maximum bit gain until no more gain is possible
|
||||||
*/
|
*/
|
||||||
static void
|
static inline void FDKaacEnc_gmStage2(
|
||||||
FDKaacEnc_gmStage2(
|
|
||||||
SECTION_INFO* const RESTRICT huffsection,
|
SECTION_INFO* const RESTRICT huffsection,
|
||||||
INT* const RESTRICT mergeGainLookUp,
|
INT* const RESTRICT mergeGainLookUp,
|
||||||
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1], const INT maxSfb,
|
||||||
const INT maxSfb,
|
const SHORT* const sideInfoTab, const INT useVCB11) {
|
||||||
const SHORT* const sideInfoTab,
|
|
||||||
const INT useVCB11
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT i;
|
INT i;
|
||||||
|
|
||||||
for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt)
|
for (i = 0; i + huffsection[i].sfbCnt < maxSfb; i += huffsection[i].sfbCnt) {
|
||||||
{
|
mergeGainLookUp[i] =
|
||||||
mergeGainLookUp[i] = FDKaacEnc_CalcMergeGain(huffsection,
|
FDKaacEnc_CalcMergeGain(huffsection, bitLookUp, sideInfoTab, i,
|
||||||
bitLookUp,
|
i + huffsection[i].sfbCnt, useVCB11);
|
||||||
sideInfoTab,
|
|
||||||
i,
|
|
||||||
i + huffsection[i].sfbCnt,
|
|
||||||
useVCB11);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
while (TRUE)
|
while (TRUE) {
|
||||||
{
|
INT maxMergeGain, maxNdx, maxNdxNext, maxNdxLast;
|
||||||
INT maxMergeGain, maxNdx = 0, maxNdxNext, maxNdxLast;
|
|
||||||
|
|
||||||
maxMergeGain = FDKaacEnc_findMaxMerge(mergeGainLookUp, huffsection, maxSfb, &maxNdx);
|
maxMergeGain =
|
||||||
|
FDKaacEnc_findMaxMerge(mergeGainLookUp, huffsection, maxSfb, &maxNdx);
|
||||||
|
|
||||||
/* exit while loop if no more gain is possible */
|
/* exit while loop if no more gain is possible */
|
||||||
if (maxMergeGain <= 0)
|
if (maxMergeGain <= 0) break;
|
||||||
break;
|
|
||||||
|
|
||||||
maxNdxNext = maxNdx + huffsection[maxNdx].sfbCnt;
|
maxNdxNext = maxNdx + huffsection[maxNdx].sfbCnt;
|
||||||
|
|
||||||
/* merge sections with maximum bit gain */
|
/* merge sections with maximum bit gain */
|
||||||
huffsection[maxNdx].sfbCnt += huffsection[maxNdxNext].sfbCnt;
|
huffsection[maxNdx].sfbCnt += huffsection[maxNdxNext].sfbCnt;
|
||||||
huffsection[maxNdx].sectionBits += huffsection[maxNdxNext].sectionBits - maxMergeGain;
|
huffsection[maxNdx].sectionBits +=
|
||||||
|
huffsection[maxNdxNext].sectionBits - maxMergeGain;
|
||||||
|
|
||||||
/* update bit look up table for merged huffsection */
|
/* update bit look up table for merged huffsection */
|
||||||
FDKaacEnc_mergeBitLookUp(bitLookUp[maxNdx], bitLookUp[maxNdxNext]);
|
FDKaacEnc_mergeBitLookUp(bitLookUp[maxNdx], bitLookUp[maxNdxNext]);
|
||||||
|
|
||||||
/* update mergeLookUpTable */
|
/* update mergeLookUpTable */
|
||||||
if (maxNdx != 0)
|
if (maxNdx != 0) {
|
||||||
{
|
|
||||||
maxNdxLast = huffsection[maxNdx - 1].sfbStart;
|
maxNdxLast = huffsection[maxNdx - 1].sfbStart;
|
||||||
mergeGainLookUp[maxNdxLast] = FDKaacEnc_CalcMergeGain(huffsection,
|
mergeGainLookUp[maxNdxLast] = FDKaacEnc_CalcMergeGain(
|
||||||
bitLookUp,
|
huffsection, bitLookUp, sideInfoTab, maxNdxLast, maxNdx, useVCB11);
|
||||||
sideInfoTab,
|
|
||||||
maxNdxLast,
|
|
||||||
maxNdx,
|
|
||||||
useVCB11);
|
|
||||||
|
|
||||||
}
|
}
|
||||||
maxNdxNext = maxNdx + huffsection[maxNdx].sfbCnt;
|
maxNdxNext = maxNdx + huffsection[maxNdx].sfbCnt;
|
||||||
|
|
||||||
huffsection[maxNdxNext - 1].sfbStart = huffsection[maxNdx].sfbStart;
|
huffsection[maxNdxNext - 1].sfbStart = huffsection[maxNdx].sfbStart;
|
||||||
|
|
||||||
if (maxNdxNext < maxSfb)
|
if (maxNdxNext < maxSfb)
|
||||||
mergeGainLookUp[maxNdx] = FDKaacEnc_CalcMergeGain(huffsection,
|
mergeGainLookUp[maxNdx] = FDKaacEnc_CalcMergeGain(
|
||||||
bitLookUp,
|
huffsection, bitLookUp, sideInfoTab, maxNdx, maxNdxNext, useVCB11);
|
||||||
sideInfoTab,
|
|
||||||
maxNdx,
|
|
||||||
maxNdxNext,
|
|
||||||
useVCB11);
|
|
||||||
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
/* count bits used by the noiseless coder */
|
/* count bits used by the noiseless coder */
|
||||||
static void FDKaacEnc_noiselessCounter(
|
static void FDKaacEnc_noiselessCounter(
|
||||||
SECTION_DATA* const RESTRICT sectionData,
|
SECTION_DATA* const RESTRICT sectionData, INT mergeGainLookUp[MAX_SFB_LONG],
|
||||||
INT mergeGainLookUp[MAX_SFB_LONG],
|
|
||||||
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
INT bitLookUp[MAX_SFB_LONG][CODE_BOOK_ESC_NDX + 1],
|
||||||
const SHORT* const quantSpectrum,
|
const SHORT* const quantSpectrum, const UINT* const maxValueInSfb,
|
||||||
const UINT* const maxValueInSfb,
|
const INT* const sfbOffset, const INT blockType, const INT* const noiseNrg,
|
||||||
const INT* const sfbOffset,
|
const INT* const isBook, const INT useVCB11) {
|
||||||
const INT blockType,
|
|
||||||
const INT* const noiseNrg,
|
|
||||||
const INT* const isBook,
|
|
||||||
const INT useVCB11
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT grpNdx, i;
|
INT grpNdx, i;
|
||||||
const SHORT* sideInfoTab = NULL;
|
const SHORT* sideInfoTab = NULL;
|
||||||
SECTION_INFO* huffsection;
|
SECTION_INFO* huffsection;
|
||||||
|
|
||||||
/* use appropriate side info table */
|
/* use appropriate side info table */
|
||||||
switch (blockType)
|
switch (blockType) {
|
||||||
{
|
|
||||||
case LONG_WINDOW:
|
case LONG_WINDOW:
|
||||||
case START_WINDOW:
|
case START_WINDOW:
|
||||||
case STOP_WINDOW:
|
case STOP_WINDOW:
|
||||||
|
default:
|
||||||
sideInfoTab = FDKaacEnc_sideInfoTabLong;
|
sideInfoTab = FDKaacEnc_sideInfoTabLong;
|
||||||
break;
|
break;
|
||||||
case SHORT_WINDOW:
|
case SHORT_WINDOW:
|
||||||
@ -420,29 +367,25 @@ static void FDKaacEnc_noiselessCounter(
|
|||||||
sectionData->huffmanBits = 0;
|
sectionData->huffmanBits = 0;
|
||||||
sectionData->sideInfoBits = 0;
|
sectionData->sideInfoBits = 0;
|
||||||
|
|
||||||
|
if (sectionData->maxSfbPerGroup == 0) return;
|
||||||
if (sectionData->maxSfbPerGroup == 0)
|
|
||||||
return;
|
|
||||||
|
|
||||||
/* loop trough groups */
|
/* loop trough groups */
|
||||||
for (grpNdx = 0; grpNdx < sectionData->sfbCnt; grpNdx += sectionData->sfbPerGroup)
|
for (grpNdx = 0; grpNdx < sectionData->sfbCnt;
|
||||||
{
|
grpNdx += sectionData->sfbPerGroup) {
|
||||||
huffsection = sectionData->huffsection + sectionData->noOfSections;
|
huffsection = sectionData->huffsection + sectionData->noOfSections;
|
||||||
|
|
||||||
/* count bits in this group */
|
/* count bits in this group */
|
||||||
FDKaacEnc_buildBitLookUp(quantSpectrum,
|
FDKaacEnc_buildBitLookUp(quantSpectrum, sectionData->maxSfbPerGroup,
|
||||||
sectionData->maxSfbPerGroup,
|
sfbOffset + grpNdx, maxValueInSfb + grpNdx,
|
||||||
sfbOffset + grpNdx,
|
bitLookUp, huffsection);
|
||||||
maxValueInSfb + grpNdx,
|
|
||||||
bitLookUp,
|
|
||||||
huffsection);
|
|
||||||
|
|
||||||
/* 0.Stage :Find minimum Codebooks */
|
/* 0.Stage :Find minimum Codebooks */
|
||||||
FDKaacEnc_gmStage0(huffsection, bitLookUp, sectionData->maxSfbPerGroup, noiseNrg+grpNdx, isBook+grpNdx);
|
FDKaacEnc_gmStage0(huffsection, bitLookUp, sectionData->maxSfbPerGroup,
|
||||||
|
noiseNrg + grpNdx, isBook + grpNdx);
|
||||||
|
|
||||||
/* 1.Stage :Merge all connected regions with the same code book */
|
/* 1.Stage :Merge all connected regions with the same code book */
|
||||||
FDKaacEnc_gmStage1(huffsection, bitLookUp, sectionData->maxSfbPerGroup, sideInfoTab, useVCB11);
|
FDKaacEnc_gmStage1(huffsection, bitLookUp, sectionData->maxSfbPerGroup,
|
||||||
|
sideInfoTab, useVCB11);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
2.Stage
|
2.Stage
|
||||||
@ -450,14 +393,8 @@ static void FDKaacEnc_noiselessCounter(
|
|||||||
gain until no more gain is possible
|
gain until no more gain is possible
|
||||||
*/
|
*/
|
||||||
|
|
||||||
FDKaacEnc_gmStage2(huffsection,
|
FDKaacEnc_gmStage2(huffsection, mergeGainLookUp, bitLookUp,
|
||||||
mergeGainLookUp,
|
sectionData->maxSfbPerGroup, sideInfoTab, useVCB11);
|
||||||
bitLookUp,
|
|
||||||
sectionData->maxSfbPerGroup,
|
|
||||||
sideInfoTab,
|
|
||||||
useVCB11);
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
compress output, calculate total huff and side bits
|
compress output, calculate total huff and side bits
|
||||||
@ -465,31 +402,33 @@ static void FDKaacEnc_noiselessCounter(
|
|||||||
to save time, we must set it here for later use in bitenc
|
to save time, we must set it here for later use in bitenc
|
||||||
*/
|
*/
|
||||||
|
|
||||||
for (i = 0; i < sectionData->maxSfbPerGroup; i += huffsection[i].sfbCnt)
|
for (i = 0; i < sectionData->maxSfbPerGroup; i += huffsection[i].sfbCnt) {
|
||||||
{
|
|
||||||
if ((huffsection[i].codeBook == CODE_BOOK_PNS_NO) ||
|
if ((huffsection[i].codeBook == CODE_BOOK_PNS_NO) ||
|
||||||
(huffsection[i].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
|
(huffsection[i].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
|
||||||
(huffsection[i].codeBook==CODE_BOOK_IS_IN_PHASE_NO))
|
(huffsection[i].codeBook == CODE_BOOK_IS_IN_PHASE_NO)) {
|
||||||
{
|
|
||||||
huffsection[i].sectionBits = 0;
|
huffsection[i].sectionBits = 0;
|
||||||
} else {
|
} else {
|
||||||
/* the sections in the sectionData are now marked with the optimal code book */
|
/* the sections in the sectionData are now marked with the optimal code
|
||||||
|
* book */
|
||||||
|
|
||||||
FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook), useVCB11);
|
FDKaacEnc_findBestBook(bitLookUp[i], &(huffsection[i].codeBook),
|
||||||
|
useVCB11);
|
||||||
|
|
||||||
sectionData->huffmanBits += huffsection[i].sectionBits - FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
|
sectionData->huffmanBits +=
|
||||||
|
huffsection[i].sectionBits -
|
||||||
|
FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
|
||||||
}
|
}
|
||||||
|
|
||||||
huffsection[i].sfbStart += grpNdx;
|
huffsection[i].sfbStart += grpNdx;
|
||||||
|
|
||||||
/* sum up side info bits (section data bits) */
|
/* sum up side info bits (section data bits) */
|
||||||
sectionData->sideInfoBits += FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
|
sectionData->sideInfoBits +=
|
||||||
|
FDKaacEnc_getSideInfoBits(&huffsection[i], sideInfoTab, useVCB11);
|
||||||
sectionData->huffsection[sectionData->noOfSections++] = huffsection[i];
|
sectionData->huffsection[sectionData->noOfSections++] = huffsection[i];
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*******************************************************************************
|
/*******************************************************************************
|
||||||
|
|
||||||
functionname: FDKaacEnc_scfCount
|
functionname: FDKaacEnc_scfCount
|
||||||
@ -525,13 +464,10 @@ static void FDKaacEnc_noiselessCounter(
|
|||||||
scalfacGain (75) and the future scalefacGain (5) is 70.
|
scalfacGain (75) and the future scalefacGain (5) is 70.
|
||||||
|
|
||||||
********************************************************************************/
|
********************************************************************************/
|
||||||
static void FDKaacEnc_scfCount(
|
static void FDKaacEnc_scfCount(const INT* const scalefacGain,
|
||||||
const INT* const scalefacGain,
|
|
||||||
const UINT* const maxValueInSfb,
|
const UINT* const maxValueInSfb,
|
||||||
SECTION_DATA* const RESTRICT sectionData,
|
SECTION_DATA* const RESTRICT sectionData,
|
||||||
const INT* const isScale
|
const INT* const isScale) {
|
||||||
)
|
|
||||||
{
|
|
||||||
INT i, j, k, m, n;
|
INT i, j, k, m, n;
|
||||||
|
|
||||||
INT lastValScf = 0;
|
INT lastValScf = 0;
|
||||||
@ -542,63 +478,54 @@ static void FDKaacEnc_scfCount(
|
|||||||
|
|
||||||
sectionData->scalefacBits = 0;
|
sectionData->scalefacBits = 0;
|
||||||
|
|
||||||
if (scalefacGain == NULL)
|
if (scalefacGain == NULL) return;
|
||||||
return;
|
|
||||||
|
|
||||||
sectionData->firstScf = 0;
|
sectionData->firstScf = 0;
|
||||||
|
|
||||||
for (i=0; i<sectionData->noOfSections; i++)
|
for (i = 0; i < sectionData->noOfSections; i++) {
|
||||||
{
|
if (sectionData->huffsection[i].codeBook != CODE_BOOK_ZERO_NO) {
|
||||||
if (sectionData->huffsection[i].codeBook != CODE_BOOK_ZERO_NO)
|
|
||||||
{
|
|
||||||
sectionData->firstScf = sectionData->huffsection[i].sfbStart;
|
sectionData->firstScf = sectionData->huffsection[i].sfbStart;
|
||||||
lastValScf = scalefacGain[sectionData->firstScf];
|
lastValScf = scalefacGain[sectionData->firstScf];
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
for (i=0; i<sectionData->noOfSections; i++)
|
for (i = 0; i < sectionData->noOfSections; i++) {
|
||||||
{
|
if ((sectionData->huffsection[i].codeBook ==
|
||||||
if ((sectionData->huffsection[i].codeBook == CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
|
CODE_BOOK_IS_OUT_OF_PHASE_NO) ||
|
||||||
(sectionData->huffsection[i].codeBook == CODE_BOOK_IS_IN_PHASE_NO))
|
(sectionData->huffsection[i].codeBook == CODE_BOOK_IS_IN_PHASE_NO)) {
|
||||||
{
|
|
||||||
for (j = sectionData->huffsection[i].sfbStart;
|
for (j = sectionData->huffsection[i].sfbStart;
|
||||||
j < sectionData->huffsection[i].sfbStart + sectionData->huffsection[i].sfbCnt;
|
j < sectionData->huffsection[i].sfbStart +
|
||||||
j++)
|
sectionData->huffsection[i].sfbCnt;
|
||||||
{
|
j++) {
|
||||||
INT deltaIs = isScale[j] - lastValIs;
|
INT deltaIs = isScale[j] - lastValIs;
|
||||||
lastValIs = isScale[j];
|
lastValIs = isScale[j];
|
||||||
sectionData->scalefacBits+=FDKaacEnc_bitCountScalefactorDelta(deltaIs);
|
sectionData->scalefacBits +=
|
||||||
|
FDKaacEnc_bitCountScalefactorDelta(deltaIs);
|
||||||
}
|
}
|
||||||
} /* Intensity */
|
} /* Intensity */
|
||||||
else if ((sectionData->huffsection[i].codeBook != CODE_BOOK_ZERO_NO) &&
|
else if ((sectionData->huffsection[i].codeBook != CODE_BOOK_ZERO_NO) &&
|
||||||
(sectionData->huffsection[i].codeBook != CODE_BOOK_PNS_NO))
|
(sectionData->huffsection[i].codeBook != CODE_BOOK_PNS_NO)) {
|
||||||
{
|
INT tmp = sectionData->huffsection[i].sfbStart +
|
||||||
INT tmp = sectionData->huffsection[i].sfbStart + sectionData->huffsection[i].sfbCnt;
|
sectionData->huffsection[i].sfbCnt;
|
||||||
for (j = sectionData->huffsection[i].sfbStart; j<tmp; j++)
|
for (j = sectionData->huffsection[i].sfbStart; j < tmp; j++) {
|
||||||
{
|
|
||||||
/* check if we can repeat the last value to save bits */
|
/* check if we can repeat the last value to save bits */
|
||||||
if (maxValueInSfb[j] == 0)
|
if (maxValueInSfb[j] == 0) {
|
||||||
{
|
|
||||||
found = 0;
|
found = 0;
|
||||||
/* are scalefactors skipped? */
|
/* are scalefactors skipped? */
|
||||||
if (scfSkipCounter == 0)
|
if (scfSkipCounter == 0) {
|
||||||
{
|
|
||||||
/* end of section */
|
/* end of section */
|
||||||
if (j == (tmp - 1))
|
if (j == (tmp - 1))
|
||||||
found = 0; /* search in other sections for maxValueInSfb != 0 */
|
found = 0; /* search in other sections for maxValueInSfb != 0 */
|
||||||
else
|
else {
|
||||||
{
|
|
||||||
/* search in this section for the next maxValueInSfb[] != 0 */
|
/* search in this section for the next maxValueInSfb[] != 0 */
|
||||||
for (k = (j+1); k < tmp; k++)
|
for (k = (j + 1); k < tmp; k++) {
|
||||||
{
|
if (maxValueInSfb[k] != 0) {
|
||||||
if (maxValueInSfb[k] != 0)
|
|
||||||
{
|
|
||||||
found = 1;
|
found = 1;
|
||||||
if ( (fixp_abs(scalefacGain[k] - lastValScf)) <= CODE_BOOK_SCF_LAV)
|
if ((fixp_abs(scalefacGain[k] - lastValScf)) <=
|
||||||
|
CODE_BOOK_SCF_LAV)
|
||||||
deltaScf = 0; /* save bits */
|
deltaScf = 0; /* save bits */
|
||||||
else
|
else {
|
||||||
{
|
|
||||||
/* do not save bits */
|
/* do not save bits */
|
||||||
deltaScf = lastValScf - scalefacGain[j];
|
deltaScf = lastValScf - scalefacGain[j];
|
||||||
lastValScf = scalefacGain[j];
|
lastValScf = scalefacGain[j];
|
||||||
@ -612,20 +539,19 @@ static void FDKaacEnc_scfCount(
|
|||||||
}
|
}
|
||||||
|
|
||||||
/* search for the next maxValueInSfb[] != 0 in all other sections */
|
/* search for the next maxValueInSfb[] != 0 in all other sections */
|
||||||
for (m=(i+1); (m < sectionData->noOfSections) && (found == 0); m++)
|
for (m = (i + 1); (m < sectionData->noOfSections) && (found == 0);
|
||||||
{
|
m++) {
|
||||||
if ((sectionData->huffsection[m].codeBook != CODE_BOOK_ZERO_NO) && (sectionData->huffsection[m].codeBook != CODE_BOOK_PNS_NO))
|
if ((sectionData->huffsection[m].codeBook != CODE_BOOK_ZERO_NO) &&
|
||||||
{
|
(sectionData->huffsection[m].codeBook != CODE_BOOK_PNS_NO)) {
|
||||||
INT end = sectionData->huffsection[m].sfbStart + sectionData->huffsection[m].sfbCnt;
|
INT end = sectionData->huffsection[m].sfbStart +
|
||||||
for (n = sectionData->huffsection[m].sfbStart; n<end; n++)
|
sectionData->huffsection[m].sfbCnt;
|
||||||
{
|
for (n = sectionData->huffsection[m].sfbStart; n < end; n++) {
|
||||||
if (maxValueInSfb[n] != 0)
|
if (maxValueInSfb[n] != 0) {
|
||||||
{
|
|
||||||
found = 1;
|
found = 1;
|
||||||
if (fixp_abs(scalefacGain[n] - lastValScf) <= CODE_BOOK_SCF_LAV)
|
if (fixp_abs(scalefacGain[n] - lastValScf) <=
|
||||||
|
CODE_BOOK_SCF_LAV)
|
||||||
deltaScf = 0; /* save bits */
|
deltaScf = 0; /* save bits */
|
||||||
else
|
else {
|
||||||
{
|
|
||||||
/* do not save bits */
|
/* do not save bits */
|
||||||
deltaScf = lastValScf - scalefacGain[j];
|
deltaScf = lastValScf - scalefacGain[j];
|
||||||
lastValScf = scalefacGain[j];
|
lastValScf = scalefacGain[j];
|
||||||
@ -639,64 +565,29 @@ static void FDKaacEnc_scfCount(
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
/* no maxValueInSfb[] != 0 found */
|
/* no maxValueInSfb[] != 0 found */
|
||||||
if (found == 0)
|
if (found == 0) {
|
||||||
{
|
|
||||||
deltaScf = 0;
|
deltaScf = 0;
|
||||||
scfSkipCounter = 0;
|
scfSkipCounter = 0;
|
||||||
}
|
}
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/* consider skipped scalefactors */
|
/* consider skipped scalefactors */
|
||||||
deltaScf = 0;
|
deltaScf = 0;
|
||||||
scfSkipCounter--;
|
scfSkipCounter--;
|
||||||
}
|
}
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
deltaScf = lastValScf - scalefacGain[j];
|
deltaScf = lastValScf - scalefacGain[j];
|
||||||
lastValScf = scalefacGain[j];
|
lastValScf = scalefacGain[j];
|
||||||
}
|
}
|
||||||
sectionData->scalefacBits += FDKaacEnc_bitCountScalefactorDelta(deltaScf);
|
sectionData->scalefacBits +=
|
||||||
|
FDKaacEnc_bitCountScalefactorDelta(deltaScf);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
} /* for (i=0; i<sectionData->noOfSections; i++) */
|
} /* for (i=0; i<sectionData->noOfSections; i++) */
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef PNS_PRECOUNT_ENABLE
|
|
||||||
/*
|
|
||||||
preCount bits used pns
|
|
||||||
*/
|
|
||||||
/* estimate bits used by pns for correction of static bits */
|
|
||||||
/* no codebook switch estimation, see AAC LD FASTENC */
|
|
||||||
INT noisePreCount(const INT *noiseNrg, INT maxSfb)
|
|
||||||
{
|
|
||||||
INT noisePCMFlag = TRUE;
|
|
||||||
INT lastValPns = 0, deltaPns;
|
|
||||||
int i, bits=0;
|
|
||||||
|
|
||||||
for (i = 0; i < maxSfb; i++) {
|
|
||||||
if (noiseNrg[i] != NO_NOISE_PNS) {
|
|
||||||
|
|
||||||
if (noisePCMFlag) {
|
|
||||||
bits+=PNS_PCM_BITS;
|
|
||||||
lastValPns = noiseNrg[i];
|
|
||||||
noisePCMFlag = FALSE;
|
|
||||||
}else {
|
|
||||||
deltaPns = noiseNrg[i]-lastValPns;
|
|
||||||
lastValPns = noiseNrg[i];
|
|
||||||
bits+=FDKaacEnc_bitCountScalefactorDelta(deltaPns);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return ( bits );
|
|
||||||
}
|
|
||||||
#endif /* PNS_PRECOUNT_ENABLE */
|
|
||||||
|
|
||||||
/* count bits used by pns */
|
/* count bits used by pns */
|
||||||
static void FDKaacEnc_noiseCount(
|
static void FDKaacEnc_noiseCount(SECTION_DATA* const RESTRICT sectionData,
|
||||||
SECTION_DATA* const RESTRICT sectionData,
|
const INT* const noiseNrg) {
|
||||||
const INT* const noiseNrg
|
|
||||||
)
|
|
||||||
{
|
|
||||||
INT noisePCMFlag = TRUE;
|
INT noisePCMFlag = TRUE;
|
||||||
INT lastValPns = 0, deltaPns;
|
INT lastValPns = 0, deltaPns;
|
||||||
int i, j;
|
int i, j;
|
||||||
@ -708,7 +599,6 @@ static void FDKaacEnc_noiseCount(
|
|||||||
int sfbStart = sectionData->huffsection[i].sfbStart;
|
int sfbStart = sectionData->huffsection[i].sfbStart;
|
||||||
int sfbEnd = sfbStart + sectionData->huffsection[i].sfbCnt;
|
int sfbEnd = sfbStart + sectionData->huffsection[i].sfbCnt;
|
||||||
for (j = sfbStart; j < sfbEnd; j++) {
|
for (j = sfbStart; j < sfbEnd; j++) {
|
||||||
|
|
||||||
if (noisePCMFlag) {
|
if (noisePCMFlag) {
|
||||||
sectionData->noiseNrgBits += PNS_PCM_BITS;
|
sectionData->noiseNrgBits += PNS_PCM_BITS;
|
||||||
lastValPns = noiseNrg[j];
|
lastValPns = noiseNrg[j];
|
||||||
@ -716,90 +606,58 @@ static void FDKaacEnc_noiseCount(
|
|||||||
} else {
|
} else {
|
||||||
deltaPns = noiseNrg[j] - lastValPns;
|
deltaPns = noiseNrg[j] - lastValPns;
|
||||||
lastValPns = noiseNrg[j];
|
lastValPns = noiseNrg[j];
|
||||||
sectionData->noiseNrgBits+=FDKaacEnc_bitCountScalefactorDelta(deltaPns);
|
sectionData->noiseNrgBits +=
|
||||||
|
FDKaacEnc_bitCountScalefactorDelta(deltaPns);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
INT FDKaacEnc_dynBitCount(
|
INT FDKaacEnc_dynBitCount(BITCNTR_STATE* const hBC,
|
||||||
BITCNTR_STATE* const hBC,
|
|
||||||
const SHORT* const quantSpectrum,
|
const SHORT* const quantSpectrum,
|
||||||
const UINT* const maxValueInSfb,
|
const UINT* const maxValueInSfb,
|
||||||
const INT* const scalefac,
|
const INT* const scalefac, const INT blockType,
|
||||||
const INT blockType,
|
const INT sfbCnt, const INT maxSfbPerGroup,
|
||||||
const INT sfbCnt,
|
const INT sfbPerGroup, const INT* const sfbOffset,
|
||||||
const INT maxSfbPerGroup,
|
|
||||||
const INT sfbPerGroup,
|
|
||||||
const INT* const sfbOffset,
|
|
||||||
SECTION_DATA* const RESTRICT sectionData,
|
SECTION_DATA* const RESTRICT sectionData,
|
||||||
const INT* const noiseNrg,
|
const INT* const noiseNrg, const INT* const isBook,
|
||||||
const INT* const isBook,
|
const INT* const isScale, const UINT syntaxFlags) {
|
||||||
const INT* const isScale,
|
|
||||||
const UINT syntaxFlags
|
|
||||||
)
|
|
||||||
{
|
|
||||||
sectionData->blockType = blockType;
|
sectionData->blockType = blockType;
|
||||||
sectionData->sfbCnt = sfbCnt;
|
sectionData->sfbCnt = sfbCnt;
|
||||||
sectionData->sfbPerGroup = sfbPerGroup;
|
sectionData->sfbPerGroup = sfbPerGroup;
|
||||||
sectionData->noOfGroups = sfbCnt / sfbPerGroup;
|
sectionData->noOfGroups = sfbCnt / sfbPerGroup;
|
||||||
sectionData->maxSfbPerGroup = maxSfbPerGroup;
|
sectionData->maxSfbPerGroup = maxSfbPerGroup;
|
||||||
|
|
||||||
FDKaacEnc_noiselessCounter(
|
FDKaacEnc_noiselessCounter(sectionData, hBC->mergeGainLookUp,
|
||||||
sectionData,
|
(lookUpTable)hBC->bitLookUp, quantSpectrum,
|
||||||
hBC->mergeGainLookUp,
|
maxValueInSfb, sfbOffset, blockType, noiseNrg,
|
||||||
(lookUpTable)hBC->bitLookUp,
|
isBook, (syntaxFlags & AC_ER_VCB11) ? 1 : 0);
|
||||||
quantSpectrum,
|
|
||||||
maxValueInSfb,
|
|
||||||
sfbOffset,
|
|
||||||
blockType,
|
|
||||||
noiseNrg,
|
|
||||||
isBook,
|
|
||||||
(syntaxFlags & AC_ER_VCB11)?1:0);
|
|
||||||
|
|
||||||
FDKaacEnc_scfCount(
|
FDKaacEnc_scfCount(scalefac, maxValueInSfb, sectionData, isScale);
|
||||||
scalefac,
|
|
||||||
maxValueInSfb,
|
|
||||||
sectionData,
|
|
||||||
isScale);
|
|
||||||
|
|
||||||
FDKaacEnc_noiseCount(sectionData,
|
FDKaacEnc_noiseCount(sectionData, noiseNrg);
|
||||||
noiseNrg);
|
|
||||||
|
|
||||||
return (sectionData->huffmanBits +
|
return (sectionData->huffmanBits + sectionData->sideInfoBits +
|
||||||
sectionData->sideInfoBits +
|
sectionData->scalefacBits + sectionData->noiseNrgBits);
|
||||||
sectionData->scalefacBits +
|
|
||||||
sectionData->noiseNrgBits);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
INT FDKaacEnc_BCNew(BITCNTR_STATE **phBC
|
INT FDKaacEnc_BCNew(BITCNTR_STATE** phBC, UCHAR* dynamic_RAM) {
|
||||||
,UCHAR* dynamic_RAM
|
|
||||||
)
|
|
||||||
{
|
|
||||||
BITCNTR_STATE* hBC = GetRam_aacEnc_BitCntrState();
|
BITCNTR_STATE* hBC = GetRam_aacEnc_BitCntrState();
|
||||||
|
|
||||||
if (hBC)
|
if (hBC) {
|
||||||
{
|
|
||||||
*phBC = hBC;
|
*phBC = hBC;
|
||||||
hBC->bitLookUp = GetRam_aacEnc_BitLookUp(0, dynamic_RAM);
|
hBC->bitLookUp = GetRam_aacEnc_BitLookUp(0, dynamic_RAM);
|
||||||
hBC->mergeGainLookUp = GetRam_aacEnc_MergeGainLookUp(0, dynamic_RAM);
|
hBC->mergeGainLookUp = GetRam_aacEnc_MergeGainLookUp(0, dynamic_RAM);
|
||||||
if (hBC->bitLookUp == 0 ||
|
if (hBC->bitLookUp == 0 || hBC->mergeGainLookUp == 0) {
|
||||||
hBC->mergeGainLookUp == 0)
|
|
||||||
{
|
|
||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
return (hBC == 0) ? 1 : 0;
|
return (hBC == 0) ? 1 : 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
void FDKaacEnc_BCClose(BITCNTR_STATE **phBC)
|
void FDKaacEnc_BCClose(BITCNTR_STATE** phBC) {
|
||||||
{
|
|
||||||
if (*phBC != NULL) {
|
if (*phBC != NULL) {
|
||||||
|
|
||||||
FreeRam_aacEnc_BitCntrState(phBC);
|
FreeRam_aacEnc_BitCntrState(phBC);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
@ -1,74 +1,85 @@
|
|||||||
|
/* -----------------------------------------------------------------------------
|
||||||
/* -----------------------------------------------------------------------------------------------------------
|
|
||||||
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
||||||
|
|
||||||
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
|
||||||
All rights reserved.
|
Forschung e.V. All rights reserved.
|
||||||
|
|
||||||
1. INTRODUCTION
|
1. INTRODUCTION
|
||||||
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
|
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
|
||||||
the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
|
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
|
||||||
This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
|
scheme for digital audio. This FDK AAC Codec software is intended to be used on
|
||||||
|
a wide variety of Android devices.
|
||||||
|
|
||||||
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
|
AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
|
||||||
audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
|
general perceptual audio codecs. AAC-ELD is considered the best-performing
|
||||||
independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
|
full-bandwidth communications codec by independent studies and is widely
|
||||||
of the MPEG specifications.
|
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
|
||||||
|
specifications.
|
||||||
|
|
||||||
Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
|
Patent licenses for necessary patent claims for the FDK AAC Codec (including
|
||||||
may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
|
those of Fraunhofer) may be obtained through Via Licensing
|
||||||
individually for the purpose of encoding or decoding bit streams in products that are compliant with
|
(www.vialicensing.com) or through the respective patent owners individually for
|
||||||
the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
|
the purpose of encoding or decoding bit streams in products that are compliant
|
||||||
these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
|
with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
|
||||||
software may already be covered under those patent licenses when it is used for those licensed purposes only.
|
Android devices already license these patent claims through Via Licensing or
|
||||||
|
directly from the patent owners, and therefore FDK AAC Codec software may
|
||||||
|
already be covered under those patent licenses when it is used for those
|
||||||
|
licensed purposes only.
|
||||||
|
|
||||||
Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
|
Commercially-licensed AAC software libraries, including floating-point versions
|
||||||
are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
|
with enhanced sound quality, are also available from Fraunhofer. Users are
|
||||||
applications information and documentation.
|
encouraged to check the Fraunhofer website for additional applications
|
||||||
|
information and documentation.
|
||||||
|
|
||||||
2. COPYRIGHT LICENSE
|
2. COPYRIGHT LICENSE
|
||||||
|
|
||||||
Redistribution and use in source and binary forms, with or without modification, are permitted without
|
Redistribution and use in source and binary forms, with or without modification,
|
||||||
payment of copyright license fees provided that you satisfy the following conditions:
|
are permitted without payment of copyright license fees provided that you
|
||||||
|
satisfy the following conditions:
|
||||||
|
|
||||||
You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
|
You must retain the complete text of this software license in redistributions of
|
||||||
your modifications thereto in source code form.
|
the FDK AAC Codec or your modifications thereto in source code form.
|
||||||
|
|
||||||
You must retain the complete text of this software license in the documentation and/or other materials
|
You must retain the complete text of this software license in the documentation
|
||||||
provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
|
and/or other materials provided with redistributions of the FDK AAC Codec or
|
||||||
You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
|
your modifications thereto in binary form. You must make available free of
|
||||||
|
charge copies of the complete source code of the FDK AAC Codec and your
|
||||||
modifications thereto to recipients of copies in binary form.
|
modifications thereto to recipients of copies in binary form.
|
||||||
|
|
||||||
The name of Fraunhofer may not be used to endorse or promote products derived from this library without
|
The name of Fraunhofer may not be used to endorse or promote products derived
|
||||||
prior written permission.
|
from this library without prior written permission.
|
||||||
|
|
||||||
You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
|
You may not charge copyright license fees for anyone to use, copy or distribute
|
||||||
software or your modifications thereto.
|
the FDK AAC Codec software or your modifications thereto.
|
||||||
|
|
||||||
Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
|
Your modified versions of the FDK AAC Codec must carry prominent notices stating
|
||||||
and the date of any change. For modified versions of the FDK AAC Codec, the term
|
that you changed the software and the date of any change. For modified versions
|
||||||
"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
|
of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
|
||||||
"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
|
must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
|
||||||
|
AAC Codec Library for Android."
|
||||||
|
|
||||||
3. NO PATENT LICENSE
|
3. NO PATENT LICENSE
|
||||||
|
|
||||||
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
|
NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
|
||||||
ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
|
limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
|
||||||
respect to this software.
|
Fraunhofer provides no warranty of patent non-infringement with respect to this
|
||||||
|
software.
|
||||||
|
|
||||||
You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
|
You may use this FDK AAC Codec software or modifications thereto only for
|
||||||
by appropriate patent licenses.
|
purposes that are authorized by appropriate patent licenses.
|
||||||
|
|
||||||
4. DISCLAIMER
|
4. DISCLAIMER
|
||||||
|
|
||||||
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
|
This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
|
||||||
"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
|
holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||||
of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
including but not limited to the implied warranties of merchantability and
|
||||||
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
|
fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
||||||
including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
|
CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
|
||||||
or business interruption, however caused and on any theory of liability, whether in contract, strict
|
or consequential damages, including but not limited to procurement of substitute
|
||||||
liability, or tort (including negligence), arising in any way out of the use of this software, even if
|
goods or services; loss of use, data, or profits, or business interruption,
|
||||||
advised of the possibility of such damage.
|
however caused and on any theory of liability, whether in contract, strict
|
||||||
|
liability, or tort (including negligence), arising in any way out of the use of
|
||||||
|
this software, even if advised of the possibility of such damage.
|
||||||
|
|
||||||
5. CONTACT INFORMATION
|
5. CONTACT INFORMATION
|
||||||
|
|
||||||
@ -79,17 +90,18 @@ Am Wolfsmantel 33
|
|||||||
|
|
||||||
www.iis.fraunhofer.de/amm
|
www.iis.fraunhofer.de/amm
|
||||||
amm-info@iis.fraunhofer.de
|
amm-info@iis.fraunhofer.de
|
||||||
----------------------------------------------------------------------------------------------------------- */
|
----------------------------------------------------------------------------- */
|
||||||
|
|
||||||
/******************************** MPEG Audio Encoder **************************
|
/**************************** AAC encoder library ******************************
|
||||||
|
|
||||||
Initial author: M.Werner
|
Author(s): M.Werner
|
||||||
contents/description: Noiseless coder module
|
|
||||||
|
|
||||||
******************************************************************************/
|
Description: Noiseless coder module
|
||||||
|
|
||||||
#ifndef __DYN_BITS_H
|
*******************************************************************************/
|
||||||
#define __DYN_BITS_H
|
|
||||||
|
#ifndef DYN_BITS_H
|
||||||
|
#define DYN_BITS_H
|
||||||
|
|
||||||
#include "common_fix.h"
|
#include "common_fix.h"
|
||||||
|
|
||||||
@ -104,17 +116,14 @@ amm-info@iis.fraunhofer.de
|
|||||||
#define SECT_BITS_SHORT 3
|
#define SECT_BITS_SHORT 3
|
||||||
#define PNS_PCM_BITS 9
|
#define PNS_PCM_BITS 9
|
||||||
|
|
||||||
typedef struct
|
typedef struct {
|
||||||
{
|
|
||||||
INT codeBook;
|
INT codeBook;
|
||||||
INT sfbStart;
|
INT sfbStart;
|
||||||
INT sfbCnt;
|
INT sfbCnt;
|
||||||
INT sectionBits; /* huff + si ! */
|
INT sectionBits; /* huff + si ! */
|
||||||
} SECTION_INFO;
|
} SECTION_INFO;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
typedef struct
|
|
||||||
{
|
|
||||||
INT blockType;
|
INT blockType;
|
||||||
INT noOfGroups;
|
INT noOfGroups;
|
||||||
INT sfbCnt;
|
INT sfbCnt;
|
||||||
@ -129,39 +138,23 @@ typedef struct
|
|||||||
INT firstScf; /* first scf to be coded */
|
INT firstScf; /* first scf to be coded */
|
||||||
} SECTION_DATA;
|
} SECTION_DATA;
|
||||||
|
|
||||||
|
struct BITCNTR_STATE {
|
||||||
struct BITCNTR_STATE
|
|
||||||
{
|
|
||||||
INT* bitLookUp;
|
INT* bitLookUp;
|
||||||
INT* mergeGainLookUp;
|
INT* mergeGainLookUp;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
INT FDKaacEnc_BCNew(BITCNTR_STATE** phBC, UCHAR* dynamic_RAM);
|
||||||
INT FDKaacEnc_BCNew(BITCNTR_STATE **phBC
|
|
||||||
,UCHAR* dynamic_RAM
|
|
||||||
);
|
|
||||||
|
|
||||||
void FDKaacEnc_BCClose(BITCNTR_STATE** phBC);
|
void FDKaacEnc_BCClose(BITCNTR_STATE** phBC);
|
||||||
|
|
||||||
#if defined(PNS_PRECOUNT_ENABLE)
|
INT FDKaacEnc_dynBitCount(BITCNTR_STATE* const hBC,
|
||||||
INT noisePreCount(const INT *noiseNrg, INT maxSfb);
|
|
||||||
#endif
|
|
||||||
|
|
||||||
INT FDKaacEnc_dynBitCount(
|
|
||||||
BITCNTR_STATE* const hBC,
|
|
||||||
const SHORT* const quantSpectrum,
|
const SHORT* const quantSpectrum,
|
||||||
const UINT* const maxValueInSfb,
|
const UINT* const maxValueInSfb,
|
||||||
const INT* const scalefac,
|
const INT* const scalefac, const INT blockType,
|
||||||
const INT blockType,
|
const INT sfbCnt, const INT maxSfbPerGroup,
|
||||||
const INT sfbCnt,
|
const INT sfbPerGroup, const INT* const sfbOffset,
|
||||||
const INT maxSfbPerGroup,
|
|
||||||
const INT sfbPerGroup,
|
|
||||||
const INT* const sfbOffset,
|
|
||||||
SECTION_DATA* const RESTRICT sectionData,
|
SECTION_DATA* const RESTRICT sectionData,
|
||||||
const INT* const noiseNrg,
|
const INT* const noiseNrg, const INT* const isBook,
|
||||||
const INT* const isBook,
|
const INT* const isScale, const UINT syntaxFlags);
|
||||||
const INT* const isScale,
|
|
||||||
const UINT syntaxFlags
|
|
||||||
);
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|||||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user