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-Decoder
- Improved PCE handling for saver (re-)configuration and metadata processing.
Modified file(s):
libAACdec/src/aacdecoder.cpp
libAACdec/src/aacdecoder_lib.cpp
- Transport layer changes (config found) -> to be evaluated.
Modified file(s):
libMpegTPDec/include/tpdec_lib.h
libMpegTPDec/src/tpdec_latm.h
libMpegTPDec/src/version
libMpegTPDec/src/tpdec_asc.cpp
libMpegTPDec/src/tpdec_lib.cpp
libMpegTPDec/src/tpdec_adts.cpp
libMpegTPDec/src/tpdec_latm.cpp
libSYS/include/FDK_audio.h
libSYS/src/genericStds.cpp
- Enable concealment state machine to skip states if the corresponding
parameter is set to zero.
Modified file(s):
libAACdec/src/conceal.cpp
- Add some more sanity checks to avoid segmentation faults especially when
setting dynamic API params.
Modified file(s):
libAACdec/src/aacdecoder_lib.cpp
- Fix to do a fail-safe initialization of IMDCT for all channels even with
corrupt streams.
Modified file(s):
libAACdec/src/aacdecoder.cpp
- HCR decoder fix (remove warnings).
Modified file(s):
libAACdec/src/block.cpp
- Fix border calculation in SBR decoder's LPP transposer patch determination.
Modified file(s):
libSBRdec/src/env_dec.cpp
libSBRdec/src/sbrdecoder.cpp
libSBRdec/src/lpp_tran.cpp
Bug 9428126
Change-Id: Ib415b702b88a7ec8e9a55789d79cafb39296d26b
- Update disclaimer in all source files.
- Increment library version in each FDK sub-module.
Bug 9428126
Change-Id: I490b96d4ee472246b01483202b0bb4f1e9c2a5d7
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
Addresses bug 7140347.
When flushing the decoder, you need to make sure to zero out any
lingering spectral coefficients as well as zero out the overlap buffer
state after decoding the final access unit. Zeroing out the spec
coefficients *before* you decode the last block, however, seems like a
mistake. If the final block contains any useful information for the
stream, then you end up outputting the overlap portion of the second
to last decoded block combined with zeros. Because of the shape of
the second to last block's windows, this results in what appears to be
a fade out, but actually is a zero'ed out final block.
Signed-off-by: John Grossman <johngro@google.com>
Change-Id: I0fab9ee1a5899811d5519a91dc05631e9bf4963c
Jean-Michel Trivi
John Grossman
The Android Open Source Project