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Author SHA1 Message Date
Glenn Kasten 28099687b7 resolve merge conflicts of ad1e898 to nyc-dev-plus-aosp 
Change-Id: If143807a233d47fb7fd269fd263a8a898109b060
 2016-04-20 16:28:31 -07:00
Glenn Kasten 76b428d4b4 Remove redundant parentheses around == comparison operator 
Bug: 28026175
Change-Id: I8ff9d8d1dd73933dc181f2745292a0a3398a2479
 2016-04-18 16:10:57 -07:00
Jean-Michel Trivi 46ba3676b8 AAC/SBR encoder improvements 
* AAC-Encoder

  - AAC-ELD core encoder audio quality tuning. Update tuning tables, configure
    bitreservoir size and adapt afterburner iteration value.
     Modified file(s):
        libAACenc/src/aacenc.h
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/adj_thr.cpp
        libAACenc/src/adj_thr.h
        libAACenc/src/adj_thr_data.h
        libAACenc/src/bandwidth.cpp
        libAACenc/src/pnsparam.cpp
        libAACenc/src/qc_main.cpp

   - Introduze dead zone quantizer for ELD to improve audio quality at certain
     configurations.
     Modified file(s):
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/adj_thr.cpp
        libAACenc/src/adj_thr.h
        libAACenc/src/qc_data.h
        libAACenc/src/qc_main.cpp
        libAACenc/src/quantize.cpp
        libAACenc/src/quantize.h
        libAACenc/src/sf_estim.cpp
        libAACenc/src/sf_estim.h

   - Revise TNS module to improve ELD audio quality.
   - Use new window function and separate prediction gain according TNS filters.
   - Add missing memory initilization to TNS configuration.
     Modified file(s):
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/aacenc_tns.cpp
        libAACenc/src/aacenc_tns.h
        libAACenc/src/psy_main.cpp
        libAACenc/src/tns_func.h

* SBR-Encoder

   - Revise frequency resolution calculation and handle differently depending
     on number of envelopes and split frames decision.
   - Add and adjust ELD SBR tuning tables.
     Modified file(s):
        libSBRenc/include/sbr_encoder.h
        libSBRenc/src/bit_sbr.h
        libSBRenc/src/env_est.cpp
        libSBRenc/src/fram_gen.cpp
        libSBRenc/src/fram_gen.h
        libSBRenc/src/mh_det.cpp
        libSBRenc/src/sbr_def.h
        libSBRenc/src/sbr_encoder.cpp
        libSBRenc/src/sbr_rom.cpp
        libSBRenc/src/tran_det.cpp

   - Replace ELD transient detector with fast implementation.
     Modified file(s):
        libSBRenc/src/env_est.cpp
        libSBRenc/src/env_est.h
        libSBRenc/src/fram_gen.cpp
        libSBRenc/src/sbr_def.h
        libSBRenc/src/sbr_encoder.cpp
        libSBRenc/src/tran_det.cpp
        libSBRenc/src/tran_det.h

* FDK-Library
   - Introduce generic compare function in tools library.
     Modified file(s):
        libFDK/include/fixpoint_math.h
        libFDK/src/FDK_core.cpp

* SBR-Encoder

  -  Revise ELD frame splitter to improve bit distribution.
     Modified file(s):
        libSBRenc/include/sbr_encoder.h
        libSBRenc/src/bit_sbr.h
        libSBRenc/src/env_est.cpp
        libSBRenc/src/fram_gen.cpp
        libSBRenc/src/fram_gen.h
        libSBRenc/src/sbr_encoder.cpp
        libSBRenc/src/tran_det.cpp
        libSBRenc/src/tran_det.h

   - Configure amplitude resolution according the tonality of the audio signal.
     Modified file(s):
        libSBRenc/include/sbr_encoder.h
        libSBRenc/src/bit_sbr.h
        libSBRenc/src/env_est.cpp
        libSBRenc/src/nf_est.cpp
        libSBRenc/src/nf_est.h
        libSBRenc/src/sbr_def.h
        libSBRenc/src/sbr_encoder.cpp
        libSBRenc/src/ton_corr.cpp
        libSBRenc/src/ton_corr.h
        libSBRenc/src/tran_det.cpp
        libSBRenc/src/tran_det.h

Change-Id: Ie0672b989a06ee63b50240616b8d1d4b790b6cb2
 2016-04-08 10:52:42 -07:00
Jean-Michel Trivi e1c78ed73f SBR/AAC encoder updates, code clean up 
* SBR-Encoder

   - Prevent noise level overflow in noise floor detection.
   - Saturate threshold calculation in transient detection.
     Modified file(s):
        libSBRenc/src/nf_est.cpp
        libSBRenc/src/sbr_encoder.cpp
        libSBRenc/src/tran_det.cpp

* AAC-Encoder

   - Expand input data range of GetInvInt() function. There was an encoder
     assert observed in non-default bitrate configuration.
     Modified file(s):
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/intensity.cpp
        libFDK/include/fixpoint_math.h
        libFDK/src/FDK_core.cpp
        libFDK/src/FDK_tools_rom.cpp

   - Make sure that the encoder is stable with regard to very low audio bandwidth
     confguration parameter value.
   - Fix lowdelay blending for low audio bandwidth.
     Modified file(s):
        libAACenc/src/aacenc.cpp
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/adj_thr.cpp
        libAACenc/src/psy_configuration.cpp
        libAACenc/src/psy_main.cpp

   - Disable pseudo surround flag in case metadata matrix mixdown index is
     present in program config element.
     Modified file(s):
        libAACenc/src/aacenc_lib.cpp

   - Enable variable bitrate mode in encoder api.
   - Add AACENC_PEAK_BITRATE parameter to encoder api.
   - Add AACENC_AUDIOMUXVER parameter to encoder api.
     Modified file(s):
        libAACenc/include/aacenc_lib.h
        libAACenc/src/aacenc.cpp
        libAACenc/src/aacenc.h
        libAACenc/src/aacenc_lib.cpp
        libAACenc/src/qc_main.cpp
        libMpegTPEnc/src/tpenc_latm.cpp
        libMpegTPEnc/src/version

* FDK-Sources

   - Code clean up. Remove unneeded pseudo audio object types and transport types.
     Modified file(s):
        libAACdec/src/aacdecoder.cpp
        libAACdec/src/aacdecoder_lib.cpp
        libAACenc/include/aacenc_lib.h
        libAACenc/src/aacenc.cpp
        libAACenc/src/aacenc_lib.cpp
        libFDK/src/FDK_tools_rom.cpp
        libMpegTPDec/src/tpdec_lib.cpp
        libMpegTPDec/src/version
        libMpegTPEnc/src/tpenc_latm.cpp
        libMpegTPEnc/src/version
        libSBRdec/src/sbrdecoder.cpp
        libSBRenc/src/sbr_encoder.cpp
        libSYS/include/FDK_audio.h
        libSYS/src/genericStds.cpp

Change-Id: I807a53cb7f48c9ee7563cb8da1d0c52221576ca6
 2016-04-04 17:25:36 -07:00
Jean-Michel Trivi ef30836651 Remove compiler warnings, revised ARM QMF encoder 
Bug 8493170

Change-Id: I64d19a8a8059c5a96386b1eaac297fd2469515f8
 2016-04-04 15:03:26 -07:00
Dan Willemsen 6e8330732f Remove __DATE__/__TIME__ 
Building __DATE__/__TIME__ into the binaries means that every build will
create different binaries, even if all the sources are identical. This
also means that any libraries including this one will need to be patched
during every OTA.

Nothing appears to use the build_date/build_time fields, so just replace
them with empty strings.

Bug: 24204119
Change-Id: I9543eb388a1e8ab9284df9035a62fc8942cdc082
 2015-10-23 09:48:27 -07:00
Jean-Michel Trivi fa3eba1644 Encoder 7.1 support 
* AAC-Encoder

   - Add 7.1 rear surround and 7.1 front center support to supported encoder
     channel modes. Change max channels from 6 to 8 and add 7.1 configuration
     to bandwidth and channel mapping functions.
     Modified file(s):
        libAACenc\include\aacenc_lib.h
        libAACenc\src\aacEnc_ram.cpp
        libAACenc\src\aacEnc_ram.h
        libAACenc\src\aacenc.cpp
        libAACenc\src\aacenc.h
        libAACenc\src\aacenc_lib.cpp
        libAACenc\src\adj_thr.cpp
        libAACenc\src\adj_thr.h
        libAACenc\src\adj_thr_data.h
        libAACenc\src\bandwidth.cpp
        libAACenc\src\bitenc.cpp
        libAACenc\src\channel_map.cpp
        libAACenc\src\interface.h
        libAACenc\src\metadata_compressor.cpp
        libAACenc\src\psy_main.cpp
        libAACenc\src\psy_main.h
        libAACenc\src\qc_data.h
        libAACenc\src\qc_main.cpp
        libAACenc\src\qc_main.h

* SBR-Encoder

   - Support up to 7.1 audio channels. Changed max channels from 6 to 8.
     Modified file(s):
        libSBRenc\include\sbr_encoder.h
        libSBRenc\src\sbr.h
        libSBRenc\src\sbr_encoder.cpp
        libSBRenc\src\sbr_ram.cpp

* Transport-Encoder
   - Add 7.1 channel configuration to audio specific config writer in
     transport encoder library.
     Modified file(s):
        libMpegTPEnc\src\tpenc_asc.cpp
        libMpegTPEnc\src\version

* SYS-Library
   - Add 7.1 channel modes to CHANNEL_MODE description.
     Modified file(s):
        libSYS\include\FDK_audio.h
        libSYS\src\genericStds.cpp

Bug 9428126

Change-Id: Ide53583aa8e03df4537b98db80740dfe0e7a9e0f
 2013-09-03 14:19:38 -07:00
Jean-Michel Trivi 3aec97e388 Encoder downsampled SBR 
* AAC-Encoder

   - Introduce optional AACENC_SBR_RATIO encoder API parameter to configure
     dualrate or downsampled SBR explicitely. ELD makes use of downsampled SBR
     in default configuration.
     Modified file(s):
        documentation\aacEncoder.pdf
        libAACenc\include\aacenc_lib.h
        libAACenc\src\aacenc.h
        libAACenc\src\aacenc_lib.cpp

* SBR-Encoder

   - Implement downsampled SBR feature.
   - Revise sbr tuning parameter selection.
     Modified file(s):
        libSBRenc\include\sbr_encoder.h
        libSBRenc\src\bit_sbr.h
        libSBRenc\src\env_est.cpp
        libSBRenc\src\mh_det.cpp
        libSBRenc\src\nf_est.cpp
        libSBRenc\src\ps_main.cpp
        libSBRenc\src\sbr.h
        libSBRenc\src\sbr_def.h
        libSBRenc\src\sbr_encoder.cpp
        libSBRenc\src\sbr_rom.cpp
        libSBRenc\src\sbr_rom.h
        libSBRenc\src\sbrenc_freq_sca.cpp
        libSBRenc\src\sbrenc_freq_sca.h
        libSBRenc\src\ton_corr.cpp

Bug 9428126

Change-Id: I731720a10829272acaaf70b84525df00a09ff3d2
 2013-08-29 12:24:04 -07:00
Jean-Michel Trivi a84864deb7 SBR header period 
AAC encoder: Connect SBR and PS header repetition rate with AACENC_HEADER_PERIOD
     parameter of the encoder API.

Bug 9428126

Change-Id: Ia1ab965de9eaa2ac229d0c395a337cbd4d20cba1
 2013-08-20 15:30:07 -07:00
Jean-Michel Trivi fc4d7b0e73 SBR encoder improvement 
SBR encoder: Introduce coupling energy ratio limitation to prevent undesirable SBR band
     amplification while decoding.

Bug 9428126

Change-Id: I18a77cd1a178fff7531b490779a29a0df7d993af
 2013-08-20 15:05:08 -07:00
Jean-Michel Trivi 4f0d97057c Disclaimer update, lib version increment 
- Update disclaimer in all source files.
- Increment library version in each FDK sub-module.

Bug 9428126

Change-Id: I490b96d4ee472246b01483202b0bb4f1e9c2a5d7
 2013-08-20 14:38:55 -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
The Android Open Source Project 2228e36059 Snapshot 2bda038c16 
Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54
 2012-07-11 10:15:24 -07:00