9cd4bc4176
ac3dec: set AV_FRAME_DATA_DOWNMIX_INFO side data.
2014-02-15 22:25:00 +01:00
23d461fe87
ac3dec: Allow asymmetric application of DRC when drc_scale > 1
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Amplification of quiet sounds is enhanced.
Inspired by gbooker's A52Decoder.
2014-01-29 23:26:25 +01:00
ade75fb811
(e)ac3: clip surround mix level indexes.
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Values 0-2 are reserved, 3 (-1.5dB) should be used instead.
2014-01-19 19:12:52 +01:00
c229f571fd
(e)ac3: parse and store the Lt/Rt and LFE mix levels.
2014-01-19 19:12:42 +01:00
1f604f96ea
ac3: set default matrix encoding modes in parse_frame_header.
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Deduplicates some code.
2014-01-19 19:12:33 +01:00
7840c40445
(e)ac3dec: set AV_FRAME_DATA_MATRIXENCODING side data.
2014-01-05 16:41:56 +01:00
13345fc1f8
(e)ac3: parse and store the Dolby Surround, Surround EX and Headphone mode flags.
2014-01-05 16:41:56 +01:00
c9ca220ef2
ac3dec: make drc_scale exponentially
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The a52 spec suggests that "partial compression" should scale the
drc value in this manner.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-12-09 08:54:42 +01:00
48b24bd2d2
ac3dec: Fix out-of-array read
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2013-11-23 21:36:49 +01:00
d4df02131b
ac3dec: Remove write-only channel_layout field from AC3DecodeContext
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2013-11-22 23:27:34 +01:00
b532854622
ac3: implement request_channel_layout.
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2013-11-22 23:27:33 +01:00
ffb0af7f17
ac3dec: simplify an expression
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2013-11-19 18:52:17 +01:00
6c82c87dbb
ac3dec: fix outptr increment.
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Fixes corrupt data errors when downmixing in the AC-3 decoder.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
CC:libav-stable@libav.org
2013-10-28 08:33:21 -04:00
23a211cbba
lavc: change all decoders to behave consistently with AV_EF_CRCCHECK.
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Just crccheck prints a warning, crccheck+explode returns an error.
Also document this behavior.
2013-10-28 07:22:18 +01:00
b2bed9325d
cosmetics: Group .name and .long_name together in codec/format declarations
2013-10-03 23:32:01 +02:00
b1f9cdc37f
ac3: Return proper error codes
2013-08-27 16:19:12 +02:00
818d1f1a3e
ac3: Clean up the error paths
2013-08-27 16:19:12 +02:00
b6293e2798
fmtconvert: Explicitly use int32_t instead of int
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Signed-off-by: Martin Storsjö <martin@martin.st>
2013-07-17 11:02:47 +03:00
8f24c12be7
ac3dec: Don't consume more data than the actual input packet size
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This was handled properly in the normal return case at the end
of the function, but not in this special case.
Returning a value larger than the input packet size can cause
problems for certain library users.
Returning the actual input buffer size unconditionally, since
it is not guaranteed that frame_size is set to a sensible
value at this point.
Cc: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-07-15 21:37:21 +03:00
031be5b41b
ac3dec: Consistently use AC3_BLOCK_SIZE and sizeof
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Signed-off-by: Martin Storsjö <martin@martin.st>
2013-07-13 19:06:52 +03:00
68e57cde68
ac3dec: Increment channel pointers only once per channel
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If the channel mapping map multiple output channels to one
input channel, we should only increment the actual pointer once.
Cc: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-07-13 18:55:07 +03:00
12e25ed284
avcodec: av_log_missing_feature(1) ---> avpriv_request_sample()
2013-03-13 21:20:12 +01:00
759001c534
lavc decoders: work with refcounted frames.
2013-03-08 07:38:30 +01:00
d7c450436f
ac3dec: validate channel output mode against channel count
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Damaged frames can lead to a mismatch, which can cause a segfault
due to using an incorrect channel mapping.
CC:libav-stable@libav.org
2013-02-23 16:59:39 -05:00
55d2e12aef
ac3: decode directly to the user-provided AVFrame
2013-02-12 12:21:21 -05:00
04ea5491a8
ac3dec: fix non-optimal dithering of zero bit mantissas
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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>
2013-01-20 14:20:47 -05:00
e034cc6c60
lavc: Move vector_fmul_window to AVFloatDSPContext
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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-01-16 10:45:45 +01:00
511cf612ac
miscellaneous typo fixes
2012-12-21 00:18:34 +01:00
ec5da7aee2
ac3dec: decode directly into output buffers
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-12-09 15:52:01 +00:00
30b3916425
ac3dec: make downmix() take array of pointers to channel data
2012-12-09 15:52:01 +00:00
b8f3ab8e6a
ac3dec: output planar float only
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-12-09 15:52:01 +00:00
594d4d5df3
lavc: add a wrapper for AVCodecContext.get_buffer().
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It will be useful in the upcoming transition to refcounted AVFrames.
2012-12-04 21:41:59 +01:00
717addecad
Use proper return values in case of missing features
2012-10-12 20:56:54 +02:00
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
Tim Walker
John Stebbins
Michael Niedermayer
Anton Khirnov
Diego Biurrun
Luca Barbato
Christophe Gisquet
Martin Storsjö
Justin Ruggles
Mathias Rauen
Mans Rullgard
Chris Berov
Dustin Brody