This is a bug fix patch from Fraunhofer, amending/replacing/extending
the previous commit which only extended the table to 55 elements.
(In my previous fix, 55 seemed to be enough for the issue at hand at
least. A few of the coefficients had slightly different rounding than
what Fraunhofer had used though).
This will show up in AOSP in the next code drop as well.
For sample rates >= 64 kHz with short blocks, the largest sfb
width is 36, which after grouping can be multiplied with 3,
ending up as 108. GetInvInt needs to be able to support
the largest grouped sfb width, divided by two (3 * 36 / 2 = 54).
This fixes VBR encoding with sample rates >= 64 kHz.
fseek(SEEK_CUR) doesn't work for nonseekable streams (such
as pipes).
Only do this for skipping past small chunks; don't use it for
skipping past the actual data for non-streamed input.
Fix AIX build failure with IBM xlC compiler due to conflicting
definition of M_PI. The libSYS/include/genericStds.h definition is
guarded with #ifndef M_PI, but was included before <math.h> which
defines M_PI with more significant digits.
Revise decoder output delay determination. The output delay consisted of
concealment and limiter delay. SBR delay was not covered but must be
considered for gapless playback delay compensation.
Bug 9428126
Change-Id: I67483712c284de9b5378694f9db7acbed2547dd7
Provide relevant DRC metadata information via API needed for DRC
presentation mode wrapper.
Bug 9428126
Change-Id: I827cd6bdfd2a8799c21935ae32af23739c90a9b6
Improve flushing and seeking.
Add field to the API stream info structure signaling the additional output
delay for flushing and delay compensation.
Bug 9428126
Change-Id: I808412905563ea3de50a2e77a9b5dfee829cd2ed
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
The libSYS/include/machine_type.h header file states LONG should be
"Data type representing 4 byte signed integer on all supported
platforms" but only provided for defining LONG as INT and ULONG as
UINT when __x86_64__ was defined. This has been changed to when
__LP64__ is defined, so that it also applies to AArch64. The change
to libFDK/include/common_fix.h is then needed to get the project to
compile.
Change-Id: Iea42d7eca97dcc9da772a05b207d134cb999a72a
Signed-off-by: Marcus Oakland <marcus.oakland@arm.com>
The enum only contains the constant values 0, 1 and 2. This produces
the warning "comparison of constant 6 with expression of type
'PS_RESOLUTION' is always false" in clang for the first check
in the getNoBands function (but apparently not for the second one
even though mode>=3 shouldn't ever happen for a valid PS_RESOLUTION
value either). This could allow the compiler to completely remove
the conditions that shouldn't be able to occur even though they
actually are used and are necessary.
By passing the value as UINT instead, it is clear to the compiler
that all the checks are necessary.
* AAC-Encoder
- Introduce ELD auto configurator to get predefined configuration at given
bitrate and sampling rate. The configurator selects SBR on/off and if SBR
enabled distinguishes between dualrate and downsampled SBR. In default
configuration the ELD auto configurator is enabled.
Modified file(s):
libAACenc\include\aacenc_lib.h
libAACenc\src\aacenc_lib.cpp
Bug 9428126
Change-Id: I01acc9c37e57c4154b3a818d496d538b7f8b227d
* 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
* 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
* AAC-Decoder
- Only set the program reference level if it has changed compared to the
previous value. This allows setting it on a frame-by-frame basis without
limitations.
Modified file(s):
libAACdec/src/aacdec_drc.cpp
libAACdec/src/aacdec_drc.h
- Add expiry counter for the program reference level.
Modified file(s):
libAACdec/src/aacdec_drc.cpp
libAACdec/src/aacdec_drc_types.h
- Disable scaling of light compression gain values when heavy compression
mode is enabled to have the full light compression as fallback if no heavy
values are available.
Modified file(s):
libAACdec/src/aacdec_drc.cpp
libAACdec/src/aacdecoder_lib.cpp
libAACdec/src/aacdec_drc_types.h
- Change initialization and channel disabling to improve start-up behavior in
SBR decoder.
Modified file(s):
libSBRdec/src/sbrdecoder.cpp
libSBRdec/src/sbrdec_drc.cpp
Bug 9428126
Change-Id: Ie1d3949c53910506da2547d32fe3bf6ee7606eb4
AAC encoder: Connect SBR and PS header repetition rate with AACENC_HEADER_PERIOD
parameter of the encoder API.
Bug 9428126
Change-Id: Ia1ab965de9eaa2ac229d0c395a337cbd4d20cba1
AAC encoder: Make the bit rate limiting functionality more stable for multichannel
configurations where element bit rate for SBR can differ significantly.
Bug 9428126
Change-Id: I35b134c5b3c160a8f5a16b4314782b731fe49cd8
SBR encoder: Introduce coupling energy ratio limitation to prevent undesirable SBR band
amplification while decoding.
Bug 9428126
Change-Id: I18a77cd1a178fff7531b490779a29a0df7d993af
Chih-Hung Hsieh
Keun-young Park
Martin Storsjo
Duane Sand
Mark Harris
Jean-Michel Trivi
Glenn Kasten
Marcus Oakland
Terrance