* AAC-Decoder
- Add support for AOT 20 (ER-AAC scalable) (base layer only)
- Add support for AAC as used in Digital Radio Mondiale (DRM30/DRM+)
Modified file(s):
libAACdec/src/aacdecoder.cpp
libAACdec/src/aacdecoder_lib.cpp
libFDK/src/FDK_core.cpp
libFDK/src/FDK_tools_rom.cpp
libMpegTPDec/src/tpdec_asc.cpp
libMpegTPDec/src/tpdec_lib.cpp
libMpegTPDec/src/version
libSBRdec/include/sbrdecoder.h
libSBRdec/src/env_extr.h
libSBRdec/src/sbrdecoder.cpp
Added file(s):
libMpegTPDec/src/tpdec_drm.cpp
libMpegTPDec/src/tpdec_drm.h
- Fix sanity check in HCR module that was performed at the wrong point in time.
Modified file(s):
libAACdec/src/aacdecoder_lib.cpp
libAACdec/src/block.cpp
- Extend core sampling rate support up to 96 kHz.
Modified file(s):
libAACdec/src/aac_rom.cpp
libAACdec/src/aacdecoder.cpp
libAACdec/src/aacdecoder_lib.cpp
- Return correct audio output channel description according number of output
channels.
Modified file(s):
libAACdec/src/aacdecoder_lib.cpp
- Indroduce decoder intern output buffer. This change allows to use framework
output buffer with the actual size of the deocder output channels.
Modified file(s):
libAACdec/include/aacdecoder_lib.h
libAACdec/src/aacdecoder.h
libAACdec/src/aacdecoder_lib.cpp
* SBR-Decoder
- Increase robustness for erroneous input data.
- Improve error concealment performance.
- Fix handling of lowest sub-band for LD-SBR
Modified file(s):
libAACdec/src/aacdecoder.cpp
libAACdec/src/aacdecoder_lib.cpp
libSBRdec/src/env_calc.cpp
libSBRdec/src/env_dec.cpp
libSBRdec/src/env_extr.cpp
libSBRdec/src/env_extr.h
libSBRdec/src/sbr_dec.cpp
libSBRdec/src/sbr_rom.cpp
libSBRdec/src/sbr_rom.h
libSBRdec/src/sbrdecoder.cpp
- Add QMF delay compensation for ELD v2 streams decoded with the complex
low delay filter-bank.
Modified file(s):
libSBRdec/src/sbr_dec.cpp
libSBRdec/src/sbr_dec.h
libSBRdec/src/sbrdecoder.cpp
- Introduce a different handling of frames to be flushed
dependent on whether there are delayed frames available or not.
Modified file(s):
libSBRdec/src/sbr_ram.h
libSBRdec/src/sbrdecoder.cpp
- Calculate the correct number of samples for dual-mono copy in case of no
available PS data.
Modified file(s):
libSBRdec/src/sbrdecoder.cpp
* SYS-Library
- Change include order of genericStds.h to prevent conflict with definitions
which are also used in math.h.
Modified file(s):
libSYS/src/genericStds.cpp
Change-Id: I3ecffbad85f39b056213107955cfadbeb3f4b6e1
Introduce time domain limiter. The module is per default enabled for all
AAC-LC and HE-AAC v1/2 streams. For all ER-AAC-LD and ER-AAC-ELD streams
the limiter is disabled per default. The feature can be en- or disabled
via dynamic API parameter. Note that the limiter introduces an additional
output delay which depends on the module parameters and the streams
sampling rate.
Bug 9428126
Change-Id: I299a072340b33e2c324facbd347a72c8de3d380e
* AAC-Encoder
- Revise explicit signaling method which is required for downsampled SBR.
The parameter is optional and default configuration is implicit signaling
for dualrate SBR as before. In case of downsampled SBR and HE-AAC explicit
signaling is configured as default.
Modified file(s):
documentation\aacEncoder.pdf
libAACenc\include\aacenc_lib.h
libAACenc\src\aacenc_lib.cpp
libMpegTPEnc\src\tpenc_asc.cpp
libMpegTPEnc\src\version
libSYS\include\FDK_audio.h
libSYS\src\genericStds.cpp
Bug 9428126
Change-Id: I35138140346f17384d109ee5829be9ea5bab80fc
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
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
Fraunhofer IIS FDK
Jean-Michel Trivi
The Android Open Source Project