Commit Graph

17 Commits

Author SHA1 Message Date
Martin Storsjo 48cfc02cbf Revert parts of "Use saturating adds to avoid overflow"
This reverts commit 839ae290c1.

This change is no longer necessary on top of the new upstream,
I cannot reproduce the crash that this fixed with the new upstream.
2012-11-01 11:30:40 +02:00
Martin Storsjo 54dfe1ec69 Merge remote-tracking branch 'aosp/jb-mr1-release' into master
Conflicts:
	libAACenc/src/band_nrg.cpp
	libAACenc/src/grp_data.cpp
	libSBRenc/src/env_est.cpp
2012-11-01 11:08:03 +02:00
Jeffrey Knockel fea3c1d0ff Make sure AACdynamic_RAM gets allocated aligned to 8 bytes
This fixes assert failures on platforms where malloc doesn't provide
8 byte alignment, such as Win9x.
2012-10-25 12:14:05 +03:00
Sergio Ammirata 790bf9f088 Add support for Workgroup 4 (WG4) channel mapping
This is the channel ordering used in DVD Audio, and is the standard
used internally in the VLC media player.
2012-10-05 12:17:37 +03:00
Jean-Michel Trivi 6ab36997af Bug 7170947 Update AAC codec
From Fraunhofer:
* AAC Decoder

   - Stick to the written MPEG standard instead of the MPEG reference software
     in terms of reference level normalization. Always set the program reference
     level equal to the target level. This disables level normalization using a
     default level for streams without embedded metadata.
     Modified file(s):
        libAACdec\src\aacdec_drc.cpp

   - Fix downmix channel assignment when using a WAV output channel ordering.
     Modified file(s):
        libPCMutils\src\pcmutils_lib.cpp

   - Retain signal accuracy and prevent LSB alteration when no level correction
     needs to be done.
     Modified file(s):
        libAACdec\src\aacdec_drc.h
        libAACdec\src\aacdec_drc.cpp
        libSBRdec\src\sbrdecoder.cpp
        libSBRdec\src\sbr_dec.cpp
        libSBRdec\src\sbrdec_drc.cpp

   - Align metadata processing with reference implementation.
     Modified file(s):
        libAACdec\src\aacdec_drc.h
        libAACdec\src\aacdecoder.cpp

* AAC-Encoder

   - Prevent potential overflow in energy calculation after TNS processing.
     Modified file(s):
       libAACenc\src\band_nrg.cpp

   - Added saturation for number of relevant lines which are used in pe
     calculation.
     Modified file(s):
       libAACenc\src\line_pe.cpp

   - Removed obsolete files.
     Deleded file(s):
       libAACenc\src\tns_param.h
       libAACenc\src\tns_param.cpp

* FDK-Library

   - Added x86 Count Leading Zeros intrinsic.
     Modified file(s):
        libFDK\include\clz.h
     Added file(s):
        libFDK\include\x86\clz_x86.h

   - Fixed compilation for MIPS GCC-4.4 and higher.
     Modified file(s):
        libFDK\include\mips\cplx_mul.h
        libFDK\include\mips\fixmul_mips.h

Change-Id: I4be65f07f88d412224c7fddc3f054e8f451176cc
2012-10-02 10:46:47 -07:00
Jean-Michel Trivi 381d69840a Bug fixes in AAC decoder, AAC encoder, FDK library
Latest code drop from Fraunhofer:

* AAC-Decoder

   - Expanded AAC-LD/ELD decoder TNS max band tables to avoid wrong data
     access for sampling rates <22kHz and >48kHz.
     Modified file(s):
        libAACdec\src\aacdec_tns.cpp
        libAACdec\src\aac_rom.h
        libAACdec\src\aac_rom.cpp

  - Fixed ELD synthesis QMF filterbank scaling for downsampled SBR.
    Modified file(s):
        libFDK\src\qmf.cpp

* AAC-Encoder

  - Fixed bit rate limiting for lower limit as introduced in the Delivery 2012-05-11.
    Modified file(s):
        libAACenc\include\aacenc_lib.h
        libAACenc\src\aacenc.h
        libAACenc\src\aacenc.cpp
        libSBRenc\src\sbr_rom.h
        libSBRenc\src\sbr_rom.cpp

  - Allow negative prediction gain as meaning that there is no coding gain.
    Make use of scaleValueSaturate in gauss window calculation.
    Modified file(s):
        libAACenc\src\aacenc_tns.cpp

  - Added energy saturation to prevent overflow in short blocks.
    Modified file(s):
        libAACenc\src\grp_data.cpp

  - Perform scalefactor adaption in case quantized lines are out of valid range.
    Modified file(s):
        libAACenc\src\quantize.cpp

  - Interrupt quantization loop when no spectral data is available.
    Adjustments in bitreservoir adaption.
    Modified file(s):
        libAACenc\src\qc_main.cpp

  - Indroduced dynamic scaling in none missing harmonic energy lowering compensation.
    Modified file(s):
        libSBRenc\src\env_est.cpp

* FDK-Library

  - Fixed saturation for negative values in scaleValueSaturate.
    Modified file(s):
        libFDK\include\scale.h

Change-Id: If830ea65caef6b5554281e4b7a77a8b2e08825ce
2012-09-09 11:52:09 -07:00
Martin Storsjo 8e4d5d9d2f Use a saturating shift to avoid overflow
When the shift overflowed, asserts were triggered later, where
the values were assumed to be non-negative.
2012-09-02 22:27:52 +02:00
Martin Storsjo 010c75901e Use saturating adds in all other similar loops in groupShortData as well 2012-08-10 11:21:10 +03:00
Martin Storsjo 6574569496 Don't try to shift more bits than the variable length
Shifting by more than (or equal to) the variable length is
undefined in C.

This caused the quantized spectrum values to go out of range,
triggering asserts later.

Change-Id: If81b6c8caa7b9c75941ad9d280b686d2069c968c
2012-08-10 11:05:56 +03:00
Martin Storsjo 24021f1909 Don't try to shift more bits than the variable length
Shifting by more than (or equal to) the variable length is
undefined in C.
2012-08-10 11:01:37 +03:00
Martin Storsjo 839ae290c1 Use saturating adds to avoid overflow
These additions can overflow, triggering assertions later.
2012-08-10 11:01:36 +03:00
The Android Open Source Project 2228e36059 Snapshot 2bda038c16
Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54
2012-07-11 10:15:24 -07:00
Martin Storsjo b431d100a3 Allow setting bitrate modes 1-5 too
These correspond to different VBR modes.
2012-07-11 14:28:03 +03:00
Dave Burke 2bda038c16 Add NOTICE file. Rework make file so it appears in settings.
Change-Id: I9d9ab17121e2db58f8a4ba4b40e14cab629b1a7e
2012-06-12 10:34:26 -07:00
Dave Burke 18a4af02f9 Added license boilerplate to all source files.
Change-Id: I42a702487e6db4953dca0027710ea4fe266052fd
Also:
 - Removed dead code in several source files.
 - Minor changes in comments.
 - No functional changes. No changes in executed code.
 - Added documentation PDFs.
2012-06-11 20:07:04 -07:00
Dave Burke 698b536f3b Update to 2012_05_11 version.
Fixes:
- Don't throw error for invalid bitrate but limit to functional value
- More robust ASC parsing
- More robust handling of corrupt bitstreams
- Handle multiple raw access units

Change-Id: Ib49fe2545ff4185fe924126da702fe84ac5c2d87
2012-05-12 13:47:46 -07:00
Dave Burke 9bf37cc971 Fraunhofer AAC codec.
License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5
2012-04-17 23:04:43 -07:00