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path: root/libavcodec/ac3dec.c
AgeCommit message (Collapse)Author
2013-02-12ac3: decode directly to the user-provided AVFrameJustin Ruggles
2013-01-20ac3dec: fix non-optimal dithering of zero bit mantissasMathias Rauen
Use a noise range of -0.707 to 0.707 instead of -0.5 to 0.5 Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2013-01-16lavc: Move vector_fmul_window to AVFloatDSPContextJustin Ruggles
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-12-21miscellaneous typo fixesDiego Biurrun
2012-12-09ac3dec: decode directly into output buffersMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-12-09ac3dec: make downmix() take array of pointers to channel dataMans Rullgard
2012-12-09ac3dec: output planar float onlyMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-12-05lavc: add a wrapper for AVCodecContext.get_buffer().Anton Khirnov
It will be useful in the upcoming transition to refcounted AVFrames.
2012-10-12Use proper return values in case of missing featuresDiego Biurrun
2012-10-01ac3dec: ensure get_buffer() gets a buffer for the correct number of channelsJustin Ruggles
If there is an error during frame parsing, but AVCodecContext.channels was changed and AC3DecodeContext.out_channels was set previously, the two may not match. Fixes CVE-2012-2802 Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org
2012-09-13ac3: move ac3_downmix() from dsputil to ac3dspMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-09-05avopt: Explicitly store float/double option defaults in .dblMartin Storsjö
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-07Replace all CODEC_ID_* with AV_CODEC_ID_*Anton Khirnov
2012-03-28Replace memset(0) by zero initializations.Diego Biurrun
Also remove one pointless zero initialization in rangecoder.c.
2012-02-23mov: set channel layout for AC-3 streams based on the 'dac3' atom infoJustin Ruggles
fixes Bug 225
2012-02-16dsputil: Add ff_ prefix to the dsputil*_init* functionsMartin Storsjö
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-02-10ac3dec: Move center and surround mix level tables to the parser.Michael Niedermayer
That way all mix levels as exported by avpriv_ac3_parse_header() will have the same meaning. Previously the 3-bit center mix level for E-AC-3 was used to index in a 4-entry table, leading to out-of-array reads. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com> Signed-off-by: Alex Converse <alex.converse@gmail.com>
2012-01-27lavc: remove disabled FF_API_DRC_SCALE cruft.Anton Khirnov
2012-01-08cosmetics: drop some pointless parenthesesDiego Biurrun
2011-12-05ac3dec: cosmetics: pretty-printingChris Berov
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2011-12-03Add avcodec_decode_audio4().Justin Ruggles
Deprecate avcodec_decode_audio3(). Implement audio support in avcodec_default_get_buffer(). Implement the new audio decoder API in all audio decoders.
2011-10-22lavc: replace references to deprecated AVCodecContext.error_recognition to ↵Dustin Brody
use AVCodecContext.err_recognition Signed-off-by: Anton Khirnov <anton@khirnov.net>
2011-10-20lavc: use avpriv_ prefix for ff_ac3_parse_header.Anton Khirnov
It's used in lavf.
2011-10-12AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*Anton Khirnov
2011-10-10ac3dec: use get_sbits() instead of manually sign-extendingMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-10-05lavc/lavf: use unique private classes.Anton Khirnov
This is needed by the new AVOptions API.
2011-09-21ac3dec: actually use drc_scale private optionAnton Khirnov
2011-09-06ac3dec: avoid pointless alloc and indirection for input_bufferReimar Döffinger
Since we now always allocate it, it can simply be made part of the context instead.
2011-07-10ac3dec: add a drc_scale private optionAnton Khirnov
Deprecate corresponding AVCodecContext option. This is the first test of decoder private options.
2011-06-21Replace usages of av_get_bits_per_sample_fmt() with av_get_bytes_per_sample().Justin Ruggles
av_get_bits_per_sample_fmt() is deprecated.
2011-05-19Add floating-point sample format support to the ac3, eac3, dca, aac, and vorbisJustin Ruggles
decoders. Based on patches by clsid2 in ffdshow-tryout.
2011-04-17ac3dec: fix processing of delta bit allocation information.Justin Ruggles
The number of dba segments is the coded value + 1. The coupling dba offset starts at the first coupling band, not at zero.
2011-03-29ac3: move ff_ac3_bit_alloc_calc_bap to ac3dspMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-27ac3enc: Add codec-specific options for writing AC-3 metadata.Justin Ruggles
2011-03-25Get audio_service_type for AC-3 based on bitstream mode in the AC-3 parserJustin Ruggles
and decoder, and vice-versa for the AC-3 encoder.
2011-03-22Detect byte-swapped AC-3 and support decoding it directly.Reimar Döffinger
This allows the AC-3 decoder to be used directly with RealMedia decoders that unlike the libavformat one do not byte-swap automatically. Since the new code is only used in case we would fail directly otherwise there should be no risk for regressions.
2011-03-22cosmetics: indentationJustin Ruggles
2011-03-22Always copy input data for AC3 decoder.Justin Ruggles
Depending on error_recognition is not correct, low values do certainly not mean it is ok to crash. Based on a patch by Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2011-03-19Move ff_kbd_window_init() to a separate fileMans Rullgard
This function is not tightly coupled to mdct, and it's in the way of making a fixed-point mdct implementation. Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19fft: remove inline wrappers for function pointersMans Rullgard
This removes the rather pointless wrappers (one not even inline) for calling the fft_calc and related function pointers. Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19Replace FFmpeg with Libav in licence headersMans Rullgard
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-02-02Separate format conversion DSP functions from DSPContext.Justin Ruggles
This will be beneficial for use with the audio conversion API without requiring it to depend on all of dsputil. Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-31Remove unneeded add bias from 3 functions.Justin Ruggles
DSPContext.vector_fmul_window() DCADSPContext.lfe_fir() SynthFilterContext.synth_filter_float() Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-28cosmetics: indentation and spacingJustin Ruggles
2011-01-28Remove the add bias hack for the C version of DSPContext.float_to_int16_*().Justin Ruggles
2011-01-26Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.Diego Elio Pettenò
None of these symbols should be accessed directly, so declare them as hidden. Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-26Add ff_ prefix to ac3_common_init().Justin Ruggles
Signed-off-by: Mans Rullgard <mans@mansr.com>
2010-11-12Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enumStefano Sabatini
SampleFormat with AVSampleFormat. Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-14Fix compilation of AC3 decoder if E-AC3 decoder was disabled.Carl Eugen Hoyos
Originally committed as revision 23131 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-23ac3dec: return smaller of buf_size and frame_size instead of always returningJustin Ruggles
frame_size. Originally committed as revision 22950 to svn://svn.ffmpeg.org/ffmpeg/trunk
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