Commit Graph

19844 Commits

Author SHA1 Message Date
Michael Niedermayer
5e99df019a alacdec: several players have problems with planar audio still thus temporary put packed output back by default
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-20 04:48:25 +02:00
Justin Ruggles
4cd22b7738 alac: fix channel pointer assignment for 24 and 32-bit
Needs to be done separately for each element.
2012-07-19 20:14:29 -04:00
Nicolas George
cd08900393 lavc: update pkt_duration for skipped samples.
Also: factor the the computation of the timestamp difference.
2012-07-19 23:41:03 +02:00
Nicolas George
0e18ac5611 lavc: warn when impossible to adjust timestamps for skipped samples.
It is likely to happen if pkt_timebase was not set.
2012-07-19 23:41:03 +02:00
Nicolas George
11ce1cf9a7 lavc: add debug info about skipped samples. 2012-07-19 23:41:03 +02:00
Michael Niedermayer
e4c00aca96 Merge remote-tracking branch 'qatar/master'
* qatar/master: (38 commits)
  alac: cosmetics: general pretty-printing and comment clean up
  alac: calculate buffer size outside the loop in allocate_buffers()
  alac: change some data types to plain int
  alac: cosmetics: rename some variables and function names
  alac: multi-channel decoding support
  alac: split element parsing into a separate function
  alac: support a read sample size of up to 32
  alac: output in planar sample format
  alac: add 32-bit decoding support
  alac: simplify channel interleaving
  alac: use AVPacket fields directly in alac_decode_frame()
  alac: fix check for valid max_samples_per_frame
  alac: use get_sbits() to read LPC coefficients instead of casting
  alac: move the current samples per frame to the ALACContext
  alac: avoid using a double-negative when checking if the frame is compressed
  alac: factor out output_size check in predictor_decompress_fir_adapt()
  alac: factor out loading of next decoded sample in LPC prediction
  alac: use index into buffer_out instead of incrementing the pointer
  alac: simplify lpc coefficient adaptation
  alac: reduce the number of local variables needed in lpc prediction
  ...

Conflicts:
	libavcodec/alac.c
	libavformat/cafdec.c
	libavformat/mov.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-19 23:31:04 +02:00
Michael Niedermayer
85044358f6 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  Print full compiler identification, not only version number
  flacdec: reverse lpc coeff order, simplify filter
  x86: dsputil: drop some unused CPU flag debug code

Conflicts:
	cmdutils.c
	configure

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-19 22:01:31 +02:00
Justin Ruggles
eeb55f5f2f alac: cosmetics: general pretty-printing and comment clean up 2012-07-19 13:26:48 -04:00
Justin Ruggles
f3e5a7844b alac: calculate buffer size outside the loop in allocate_buffers() 2012-07-19 13:26:48 -04:00
Justin Ruggles
bae83f2c74 alac: change some data types to plain int 2012-07-19 13:26:48 -04:00
Justin Ruggles
2aebac6918 alac: cosmetics: rename some variables and function names 2012-07-19 13:26:48 -04:00
Andrew D'Addesio
1b3ef155d7 alac: multi-channel decoding support
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-07-19 13:26:48 -04:00
Justin Ruggles
81c9e2e6d0 alac: split element parsing into a separate function
This will make multi-channel implementation simpler.
Based partially on a patch by Andrew D'Addesio <modchipv12@gmail.com>.
2012-07-19 13:26:48 -04:00
Justin Ruggles
cd632619d9 alac: support a read sample size of up to 32
Use get_bits_long() in decode_scalar().
Use unsigned int for decoded value.
2012-07-19 13:26:48 -04:00
Justin Ruggles
73dc0db486 alac: output in planar sample format
Avoids unneeded interleaving and allows for reusing the AVFrame output buffer
as the internal buffer for 24-bit and 32-bit sample size.
2012-07-19 13:26:48 -04:00
Justin Ruggles
6482bd8831 alac: add 32-bit decoding support 2012-07-19 13:26:48 -04:00
Andrew D'Addesio
6cda74c155 alac: simplify channel interleaving
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-07-19 13:26:48 -04:00
Justin Ruggles
5138ff143f alac: use AVPacket fields directly in alac_decode_frame() 2012-07-19 13:26:47 -04:00
Justin Ruggles
7a206eb32f alac: fix check for valid max_samples_per_frame 2012-07-19 13:26:47 -04:00
Justin Ruggles
1193d3fedd alac: use get_sbits() to read LPC coefficients instead of casting 2012-07-19 13:26:47 -04:00
Justin Ruggles
7a50ec6799 alac: move the current samples per frame to the ALACContext
This will simplify the multi-channel implementation.
2012-07-19 13:26:47 -04:00
Justin Ruggles
46043962ea alac: avoid using a double-negative when checking if the frame is compressed 2012-07-19 13:26:47 -04:00
Justin Ruggles
9a6c528e08 alac: factor out output_size check in predictor_decompress_fir_adapt() 2012-07-19 13:26:47 -04:00
Justin Ruggles
ebd4c3add1 alac: factor out loading of next decoded sample in LPC prediction 2012-07-19 13:26:47 -04:00
Justin Ruggles
a4ecd41442 alac: use index into buffer_out instead of incrementing the pointer 2012-07-19 13:26:47 -04:00
Justin Ruggles
f2515cd629 alac: simplify lpc coefficient adaptation 2012-07-19 13:26:47 -04:00
Justin Ruggles
abc4376b31 alac: reduce the number of local variables needed in lpc prediction 2012-07-19 13:26:47 -04:00
Justin Ruggles
01880d287b alac: simplify 1st order prediction and reading of warm-up samples 2012-07-19 13:26:46 -04:00
Justin Ruggles
d0c0bf0d3e alac: cosmetics: reindent after last commit 2012-07-19 13:26:46 -04:00
Justin Ruggles
79def4c523 alac: remove unneeded conditionals in predictor_decompress_fir_adapt() 2012-07-19 13:26:46 -04:00
Justin Ruggles
4bcd637dcb alac: use sizeof() instead of hardcoded data sizes 2012-07-19 13:26:46 -04:00
Justin Ruggles
91620a04f1 alac: make block_size signed
It does not need to be unsigned.
2012-07-19 13:26:46 -04:00
Justin Ruggles
2fc24b3273 alac: remove a duplicate local variable 2012-07-19 13:26:46 -04:00
Justin Ruggles
5177413d20 alac: conditionally set sign_modifier to 1
It is already unconditionally set to 0 prior to this, so we can modify it
only when needed.
2012-07-19 13:26:46 -04:00
Justin Ruggles
7e6593e977 alac: eliminate 2 unneeded local variables in bastardized_rice_decompress()
x_modified is just unnecessary, and final_val can be removed by simplifying
the unsigned-to-signed conversion.
2012-07-19 13:26:46 -04:00
Justin Ruggles
6fd8a28b59 alac: adjust conditions for updating entropy decoder history
avoids some unnecessary arithmetic in certain situations
2012-07-19 13:26:46 -04:00
Justin Ruggles
a06fdadd97 alac: cosmetics: reindent after last commit 2012-07-19 13:26:46 -04:00
Justin Ruggles
d9837434a9 alac: limit the rice param before passing to decode_scalar()
reduces the number of parameters to decode_scalar() and slightly simplifies
the code
2012-07-19 13:26:45 -04:00
Justin Ruggles
6e91f62256 alac: reduce the number of parameters to bastardized_rice_decompress()
Use the ALACContext fields directly instead.
2012-07-19 13:26:45 -04:00
Justin Ruggles
836e8b9ba0 alac: cosmetics: rename some ALACContext parameters 2012-07-19 13:26:45 -04:00
Justin Ruggles
2ac1737583 alac: clean up and update comments leftover from reverse-engineering 2012-07-19 13:26:45 -04:00
Clément Bœsch
55ed91c856 threads: fix a potential race spotted by helgrind. 2012-07-19 19:08:36 +02:00
Michael Niedermayer
e03cd1049e Fix misspellings of FFmpeg
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-19 18:44:46 +02:00
Mans Rullgard
bf1cf4d5a5 flacdec: reverse lpc coeff order, simplify filter
Reversing the lpc coefficient order simplifies indexing in
the filter.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-07-19 10:21:32 +01:00
Diego Biurrun
9f97af2688 x86: dsputil: drop some unused CPU flag debug code 2012-07-19 10:17:56 +02:00
Michael Niedermayer
204c4e953d Merge remote-tracking branch 'qatar/master'
* qatar/master:
  ppc: fix build with altivec disabled
  vp3: move idct and loop filter pointers to new vp3dsp context
  build: add CONFIG_VP3DSP, reduce repetition in OBJS lists
  tscc2: do not add/subtract 128 bias during DCT
  tscc2: fix typo in DCT
  configure: clarify external library section of help output
  configure: mark libfdk-aac as nonfree
  configure: cosmetics: drop some unnecessary backslashes
  os_support: K&R formatting cosmetics

Conflicts:
	configure
	libavcodec/vp3.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-18 22:34:48 +02:00
Michael Niedermayer
31a192f387 imgconvert: favor pixel formats without resolution loss
Fixes Ticket1517

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-18 17:22:17 +02:00
Michael Niedermayer
60f3291086 mlpdec: switch to av_assert
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-18 16:22:41 +02:00
Mans Rullgard
ffdd93a25e ppc: fix build with altivec disabled
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-07-18 13:34:42 +01:00
Mans Rullgard
28f9ab7029 vp3: move idct and loop filter pointers to new vp3dsp context
This moves all VP3-specific function pointers from dsputil to a
new vp3dsp context.  There is no reason to ever use the VP3 IDCT
where an MPEG2 IDCT is expected or vice versa.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-07-18 10:32:19 +01:00
Mans Rullgard
ab9f987661 build: add CONFIG_VP3DSP, reduce repetition in OBJS lists
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-07-18 10:32:18 +01:00
Kostya Shishkov
4cfb0d871d tscc2: do not add/subtract 128 bias during DCT
It turns out that the reference decoder subtracts 128 from DC during block
decode but adds it back during reordering block with zigzag pattern.
Transforming block with incorrect DC caused heavy visual artifacts for
many quantisers.
2012-07-18 07:05:59 +02:00
Kostya Shishkov
3c6c19184c tscc2: fix typo in DCT 2012-07-18 07:05:53 +02:00
Michael Niedermayer
56ae5926f7 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  libopenjpeg: introduce encoding support
  libopenjpeg: rename decoder source file.
  RTMPTS protocol support
  RTMPS protocol support
  avconv: print an error message when demuxing fails.
  tscc2: DCT output should not be clipped
  rtmp: Rename rtmphttp to ffrtmphttp

Conflicts:
	Changelog
	configure
	doc/general.texi
	libavcodec/libopenjpegenc.c
	libavcodec/version.h
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-18 01:27:19 +02:00
Paul B Mahol
0b74b8f649 ptx: correct decoding
The image data is in BGR and not in RGB.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-17 17:06:24 +00:00
Michael Bradshaw
453c02f971 libopenjpeg: introduce encoding support
Based on FFmpeg version from
commit 713a7854e0

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-07-17 14:56:58 +02:00
Michael Bradshaw
b43a7bb4f9 libopenjpeg: rename decoder source file.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-07-17 14:56:22 +02:00
chinshou
81dd908c6e Fix libilbc compilation.
Fixes ticket #1540
2012-07-17 08:53:36 +02:00
Carl Eugen Hoyos
7f5fae1e48 mpeg4videodec: Add two missing format specifiers for debug output. 2012-07-17 08:12:49 +02:00
Carl Eugen Hoyos
34aa61a36d mpeg4videodec: Use format specifier PRId64 for int64_t. 2012-07-17 08:11:31 +02:00
Kostya Shishkov
0b40153d20 tscc2: DCT output should not be clipped
This fixes decoding some TSCC2 files with large quantisers.
2012-07-17 07:21:24 +02:00
Paul B Mahol
3071af6cf2 tiff: read more tags of type string
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-17 01:23:35 +00:00
Paul B Mahol
292850b634 tiff: add smarter checks if there is enough data left
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-17 01:23:34 +00:00
Paul B Mahol
1ec83d9a9e tiff: port to bytestream2
Prevents out of array reads.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-17 01:12:55 +00:00
Michael Niedermayer
9db747b2a3 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  rtmp: rtmp_parse_result() add case for video and audio packets to avoid undesired debug output.
  configure: Move the getaddrinfo function check into the network block
  configure: Remove an unused 'have' item
  mpeg: remove disabled code
  libfdk-aac: Check if cutoff value is valid
  network: Always use our version of gai_strerror on windows
  network: Undefine existing gai_strerror definitions
  network: Extend the fallback gai_strerror implementation to handle more error codes

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 20:45:41 +02:00
Michael Niedermayer
b45a313e97 ffv1dec: fix error concealment for gop>1
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 16:48:09 +02:00
Nick Brereton
e03077c432 Fix DCA-XXCH extension scaling for embedded downmixes.
Reviewed-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 16:06:01 +02:00
Nick Brereton
73154feec1 Fix ordering of XXCH downmix coefficients.
Reviewed-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 16:05:25 +02:00
Michael Niedermayer
ac9389a663 ffv1dec: detect errors in bytestream end mismatches for EC
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 15:48:04 +02:00
Michael Niedermayer
b0d674ec10 ffv1dec: set the first slices bytestream end correctly
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 15:48:04 +02:00
Michael Niedermayer
f5af3568f6 ffv1dec: keep track of errors in slice headers for EC
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 15:48:04 +02:00
Michael Niedermayer
094845aad8 ffv1dec: add simple error concealment in case of CRC errors on slices.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 15:48:04 +02:00
Michael Niedermayer
371d37fcf5 ffv1: keep last_frame (to be used for error concealment)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 15:38:27 +02:00
Paul B Mahol
7543fd80e5 exr: check size of uncompressed buffer returned by uncompress()
The actual size of uncompressed buffer returned by uncompress() may be
smaller than expected, so abort decoding in such cases.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-16 00:39:37 +00:00
Michael Niedermayer
fbe02459dc Merge remote-tracking branch 'qatar/master'
* qatar/master:
  configure: Check for CommandLineToArgvW
  vc1dec: Do not use random pred_flag if motion vector data is skipped
  vp8: Enclose pthread function calls in ifdefs
  snow: refactor code to work around a compiler bug in MSVC.
  vp8: Include the thread headers before using the pthread types
  configure: Check for getaddrinfo in ws2tcpip.h, too
  vp8: implement sliced threading
  vp8: move data from VP8Context->VP8Macroblock
  vp8: refactor decoding a single mb_row
  doc: update api changes with the right commit hashes
  mem: introduce av_malloc_array and av_mallocz_array

Conflicts:
	configure
	doc/APIchanges
	libavcodec/vp8.c
	libavutil/mem.h
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 01:32:52 +02:00
Mohammad Alsaleh
c37c383e59 libfdk-aac: Check if cutoff value is valid
Passing a cutoff value < sample_rate/256 will cause a crash.
Also, values >20000 will have no effect and 20000 will be used anyway.

Signed-off-by: Mohammad Alsaleh <msal@tormail.org>
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-15 21:59:51 +03:00
Carl Eugen Hoyos
a1e52c9441 Simplify ptx decoding on big-endian.
Reviewed-by: Reimar Döffinger
2012-07-15 15:04:44 +02:00
Piotr Bandurski
96e2507363 isom: add "NO16" FourCC
samples:

http://www.datafilehost.com/download-46d9a0fa.html

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-15 14:49:32 +02:00
Michael Niedermayer
209f92d94a lavc: add seperate AVCodec for CODEC_ID_H263P so demuxers can use that id.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-15 14:49:32 +02:00
Mashiat Sarker Shakkhar
082829520e vc1dec: Do not use random pred_flag if motion vector data is skipped
This fixes SA10143.vc1 from test-suite. Also partially fixes MC-VC1.ts
from videolan streams archive.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-15 14:02:38 +03:00
Martin Storsjö
25f056e6d4 vp8: Enclose pthread function calls in ifdefs
This fixes building with threads disabled.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-07-15 13:55:18 +03:00
Paul B Mahol
2c31ed3330 exr: make channel_offsets int instead of int8_t
Prior to this change max number of channels for float data which was
going to be correctly decoded was 32, which is rather small
considering that exr allows multiple channel layers.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-15 02:53:51 +00:00
Paul B Mahol
1463bd902a cosmetics: reindent after d3abbb1d1
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-15 02:31:40 +00:00
Paul B Mahol
a8f6df8a4f libfdk-aacenc: remove redundant log message if ff_alloc_packet2 fails
The whole point of ff_alloc_packet2 is to not bloat code with
duplicated error messages.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-15 02:19:48 +00:00
Ronald S. Bultje
c44091a9f7 snow: refactor code to work around a compiler bug in MSVC.
This fixes the compiler error "cannot convert from 'BlockNode' to
'int16_t'".
2012-07-14 19:19:34 -07:00
Martin Storsjö
a794600c00 vp8: Include the thread headers before using the pthread types
This was unnoticed on linux, since stdlib.h apparently includes
files declaring the pthread_mutex_t and pthread_cond_t types.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-07-14 19:19:33 -07:00
Paul B Mahol
6ad4560031 mss1: improve check if decoded pivot is invalid
The pivot has to lie between 0 and base.
Check of ==base is insufficient.
Thus replace it by a proper check.

Fixes out of array write.

Fixes bug #1531.

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2012-07-15 02:12:02 +00:00
Michael Niedermayer
ab46300078 Merge remote-tracking branch 'dwbuiten/master'
* dwbuiten/master:
  doc: Remove stray @item from git-howto
  libfdk-aac: Port to ff_alloc_packet2
  doxy: move av_guess_sample_aspect_ratio to correct place

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-15 03:40:19 +02:00
Michael Niedermayer
39afcf1d7e Merge remote-tracking branch 'qatar/master'
* qatar/master:
  eval: add gt(), gte(), lt() and lte() fate tests
  eval: fix swapping of lt() and lte()
  imgconvert: deprecate avcodec_find_best_pix_fmt()
  imgconvert: add avcodec_find_best_pix_fmt2()
  imgconvert: avoid undefined left shift in avcodec_find_best_pix_fmt

Conflicts:
	libavcodec/imgconvert.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-15 01:23:16 +02:00
Philip Langdale
2c501ae82b movtextdec: 3GPP TS 26.245 Timed Text Decoder.
This change introduces a basic decoder for 3GPP Timed Text subtitles,
also known as TX3G, Quicktime subtitles, or "movtext" in the existing
code.

This initial change doesn't attempt to parse styling information,
and just reads the plain text of the subtitles. I intend to add
support for styles eventually, but it's challenging due to a lack
of existing players that support them.

Signed-off-by: Philip Langdale <philipl@overt.org>
2012-07-14 14:50:02 -07:00
Daniel Kang
951455c1c1 vp8: implement sliced threading
Testing gives 25-30% gain on HD clips with two threads and
up to 50% gain with eight threads.

Sliced threading uses more memory than single or frame threading.

Frame threading and single threading keep the previous memory
layout.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-07-14 20:18:54 +02:00
Daniel Kang
17343e3952 vp8: move data from VP8Context->VP8Macroblock
In preparation for sliced threading.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-07-14 20:18:54 +02:00
Daniel Kang
337ade52de vp8: refactor decoding a single mb_row
This is in preperation for sliced threading.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-07-14 20:18:54 +02:00
Nicolas George
3aba391fb5 libx264: list possible presets and tunes.
The values are listed if setting them fails.
Using "-preset help" or "-preset list" have that effect.
2012-07-14 13:37:50 +02:00
Stefano Sabatini
160df9797e lavc/tiffenc: apply misc doxy fixes 2012-07-14 13:02:51 +02:00
Thomas Kühnel
75abfab6c6 lavc/tiff: add GeoTIFF support to the TIFF decoder
Work done for SOCIS 2011.

See thread:
Subject: [libav-devel] [PATCH 2/3] tiff: Add GeoTIFF support to the TIFF decoder
Date: Tue,  4 Oct 2011 00:19:52 +0200

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
2012-07-14 13:02:38 +02:00
Stefano Sabatini
fb57180698 lavc/avcodec.h: keep avframe_* field setter and getter close
Slightly more readable, now that the list is getting longer.
2012-07-14 13:02:25 +02:00
Thomas Kühnel
f49ec1b404 lavc: add metadata to AVFrame
See thread:
Subject: [libav-devel] [PATCH 1/3] avcodec: add metadata to AVFrame
Date: Tue,  4 Oct 2011 00:19:51 +0200
2012-07-14 13:00:18 +02:00
Michael Niedermayer
aa32971d2b lavc: adjust timestamp in case of skiping initial samples
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-14 03:49:41 +02:00
Michael Niedermayer
2fe186409b lavc: skip initial silence when requested
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-14 03:49:11 +02:00