56b6a43056
ac3dec: ensure get_buffer() gets a buffer for the correct number of channels
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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
2012-10-01 00:10:59 -04:00
97cb9236cf
ac3: move ac3_downmix() from dsputil to ac3dsp
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-09-12 23:39:50 +01:00
c7b610aa0b
avopt: Explicitly store float/double option defaults in .dbl
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:51 +03:00
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
2012-08-07 16:00:24 +02:00
a92be9b856
Replace memset(0) by zero initializations.
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Also remove one pointless zero initialization in rangecoder.c.
2012-03-28 09:38:33 +02:00
3798205a77
mov: set channel layout for AC-3 streams based on the 'dac3' atom info
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fixes Bug 225
2012-02-22 20:07:02 -05:00
9cf0841ef3
dsputil: Add ff_ prefix to the dsputil*_init* functions
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-02-15 22:06:34 +02:00
e6d9fa66f1
ac3dec: Move center and surround mix level tables to the parser.
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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>
2012-02-09 16:36:02 -08:00
f326501a65
lavc: remove disabled FF_API_DRC_SCALE cruft.
2012-01-27 10:38:34 +01:00
3dc99a18d4
cosmetics: drop some pointless parentheses
2012-01-07 22:13:07 +01:00
541d083a40
ac3dec: cosmetics: pretty-printing
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Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2011-12-04 16:15:48 -05:00
0eea212943
Add avcodec_decode_audio4().
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Deprecate avcodec_decode_audio3().
Implement audio support in avcodec_default_get_buffer().
Implement the new audio decoder API in all audio decoders.
2011-12-02 17:40:40 -05:00
9abc98737f
lavc: replace references to deprecated AVCodecContext.error_recognition to use AVCodecContext.err_recognition
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
2011-10-22 14:49:55 +02:00
6f89efeaa7
lavc: use avpriv_ prefix for ff_ac3_parse_header.
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It's used in lavf.
2011-10-20 21:06:58 +02:00
145f741e11
AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*
2011-10-12 16:51:16 +02:00
633ddb8519
ac3dec: use get_sbits() instead of manually sign-extending
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-10-09 23:21:31 +01:00
a4ea00d021
lavc/lavf: use unique private classes.
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This is needed by the new AVOptions API.
2011-10-05 07:52:30 +02:00
feedc0754b
ac3dec: actually use drc_scale private option
2011-09-21 13:51:53 +02:00
459fe331e9
ac3dec: avoid pointless alloc and indirection for input_buffer
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Since we now always allocate it, it can simply be made part of the context
instead.
2011-09-06 12:43:16 -04:00
9b83919f44
ac3dec: add a drc_scale private option
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Deprecate corresponding AVCodecContext option.
This is the first test of decoder private options.
2011-07-10 17:07:12 +02:00
e6c52cee54
Replace usages of av_get_bits_per_sample_fmt() with av_get_bytes_per_sample().
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av_get_bits_per_sample_fmt() is deprecated.
2011-06-20 18:56:06 -04:00
9aa8193a23
Add floating-point sample format support to the ac3, eac3, dca, aac, and vorbis
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decoders.
Based on patches by clsid2 in ffdshow-tryout.
2011-05-18 17:27:06 -04:00
4c64c8e95a
ac3dec: fix processing of delta bit allocation information.
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The number of dba segments is the coded value + 1.
The coupling dba offset starts at the first coupling band, not at zero.
2011-04-17 12:33:41 -04:00
6d9f52b2cd
ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-29 19:31:45 +01:00
991f3de1bb
ac3enc: Add codec-specific options for writing AC-3 metadata.
2011-03-27 11:30:09 -04:00
be18738801
Get audio_service_type for AC-3 based on bitstream mode in the AC-3 parser
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and decoder, and vice-versa for the AC-3 encoder.
2011-03-25 16:59:00 -04:00
4c886d613d
Detect byte-swapped AC-3 and support decoding it directly.
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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.
2011-03-22 15:36:47 -04:00
40728b5169
cosmetics: indentation
2011-03-22 15:36:47 -04:00
67fc8652b9
Always copy input data for AC3 decoder.
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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>
2011-03-22 15:36:47 -04:00
a45fbda994
Move ff_kbd_window_init() to a separate file
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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>
2011-03-19 19:49:27 +00:00
26f548bb59
fft: remove inline wrappers for function pointers
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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>
2011-03-19 19:49:18 +00:00
2912e87a6c
Replace FFmpeg with Libav in licence headers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
c73d99e672
Separate format conversion DSP functions from DSPContext.
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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>
2011-02-02 02:44:53 +00:00
80ba1ddb58
Remove unneeded add bias from 3 functions.
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DSPContext.vector_fmul_window()
DCADSPContext.lfe_fir()
SynthFilterContext.synth_filter_float()
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-31 20:28:42 +00:00
b5ec638343
cosmetics: indentation and spacing
2011-01-28 00:21:46 +00:00
9d06d7bce3
Remove the add bias hack for the C version of DSPContext.float_to_int16_*().
2011-01-28 00:07:35 +00:00
d36beb3f69
Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
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None of these symbols should be accessed directly, so declare them as
hidden.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-26 16:08:45 +00:00
4c57cde942
Add ff_ prefix to ac3_common_init().
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-01-26 15:35:27 +00:00
5d6e4c160a
Replace deprecated symbols SAMPLE_FMT_* with AV_SAMPLE_FMT_*, and enum
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SampleFormat with AVSampleFormat.
Originally committed as revision 25730 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-11-12 11:04:40 +00:00
eb0a4d3222
Fix compilation of AC3 decoder if E-AC3 decoder was disabled.
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Originally committed as revision 23131 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-13 20:41:36 +00:00
cc8538ff93
ac3dec: return smaller of buf_size and frame_size instead of always returning
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frame_size.
Originally committed as revision 22950 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-22 21:43:36 +00:00
2874c81cc8
Replace all remaining occurrences of AVERROR_NOMEM with
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AVERROR(ENOMEM).
AVERROR_NOMEM is deprecated and will be dropped at the next libavutil
major bump.
Originally committed as revision 22791 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-03 14:15:00 +00:00
72415b2adb
Define AVMediaType enum, and use it instead of enum CodecType, which
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is deprecated and will be dropped at the next major bump.
Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-30 23:30:55 +00:00
ca6e7708b4
Add spectral extension to the E-AC-3 decoder.
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Original patch by Justin, updated and resubmitted by
Christophe Gisquet, christophe D gisquet A gmail
Originally committed as revision 22734 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-30 22:09:14 +00:00
2c2cdc0bfb
Simplify error handling by processing header errors separate from CRC and
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buffer size vs. frame size errors.
Originally committed as revision 21519 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-28 23:19:33 +00:00
008f872f61
Only check frame size if the header is valid.
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Originally committed as revision 21439 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-24 23:55:33 +00:00
1460c79097
Use MULH instead of 64x64 multiplication, around 5% overall speedup on Intel Atom.
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Patch by myself and Yuriy Kaminskiy [yumkam mail ru]
Originally committed as revision 21175 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-01-12 23:02:07 +00:00
7934cbb3be
ac3dec: apply dynamic range compression to correct channels in dual-mono mode.
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Originally committed as revision 20533 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-14 00:25:48 +00:00
187bc061e4
ac3dec: revert r20089. The change was just wrong. 10l for me.
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Originally committed as revision 20473 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-08 03:06:05 +00:00
535497f193
Change an error to a warning to support broken AC-3 files known to exist.
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Fixes Issue 1426.
Originally committed as revision 20110 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-01 00:06:54 +00:00
Justin Ruggles
Mans Rullgard
Martin Storsjö
Anton Khirnov
Diego Biurrun
Michael Niedermayer
Chris Berov
Dustin Brody
Reimar Döffinger
Diego Elio Pettenò
Stefano Sabatini
Carl Eugen Hoyos