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James Almer af248fa117 matroskadec: Improve TTA duration calculation
Calculate the duration as accurately as possible to improve decoding of samples
where the last frame is smaller than the rest.

Example:
Take lossless-audio/luckynight-partial.tak from the FATE suit and convert it
to TTA muxed into matroska:

ffmpeg -i $(SAMPLES)/lossless-audio/luckynight-partial.tak -c:a tta lucky.mka

The framemd5 output for lucky.mka without this patch:

0,          0,          0,    46080,   184320, 7c3751ddd571d2903c3cf0ab4b3e3d0a
0,      46080,      46080,    46080,   184320, 6b70c782ba1da3f933fde2daa4f96b73
0,      92160,      92160,    46080,   184320, dcf70d89c54b9a4f0b302d4ec4fb302d
0,     138240,     138240,    46080,   184320, 48713ca38b388d2ea4abf5b86ed1226f
0,     184320,     184320,    46080,   184320, 12188a23648e7ebfb07cd6fe9197b2ea
0,     230400,     230400,    46080,   184320, 49653ab8186a5d4a044ed284671a26e0
0,     276480,     276480,    46080,   184320, 5e82c6a7fe58c7ea612c03a0a2927dd4
0,     322560,     322560,    46080,   184320, 83dc449dbd9eab5f2e8ad2b4403d6a21
0,     368640,     368640,    46080,   184320, bdd6b92c23d30978d4e802d305b0fc49

With this patch:

0,          0,          0,    46080,   184320, 7c3751ddd571d2903c3cf0ab4b3e3d0a
0,      46080,      46080,    46080,   184320, 6b70c782ba1da3f933fde2daa4f96b73
0,      92160,      92160,    46080,   184320, dcf70d89c54b9a4f0b302d4ec4fb302d
0,     138240,     138240,    46080,   184320, 48713ca38b388d2ea4abf5b86ed1226f
0,     184320,     184320,    46080,   184320, 12188a23648e7ebfb07cd6fe9197b2ea
0,     230400,     230400,    46080,   184320, 49653ab8186a5d4a044ed284671a26e0
0,     276480,     276480,    46080,   184320, 5e82c6a7fe58c7ea612c03a0a2927dd4
0,     322560,     322560,    46080,   184320, 83dc449dbd9eab5f2e8ad2b4403d6a21
0,     368640,     368640,    46080,   184320, bdd6b92c23d30978d4e802d305b0fc49
0,     414720,     414720,     4230,    16920, b50b440c5bbcecb8e9fbece643447593

The duration without this patch was calculated as 418950000000, which is bigger
than uint32_t and as such stored as 2338172288.
With this patch the duration is correctly calculated as 418950.

Signed-off-by: James Almer <jamrial@gmail.com>
Approved-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-18 02:34:39 +02:00
compat avisynth: Support video input from AviSynth 2.5 properly. 2013-08-17 14:27:25 +02:00
doc lavf/tee: add support for bitstream filtering 2013-08-16 17:58:58 +02:00
libavcodec wavpackenc: do not copy samples if they are not available 2013-08-17 22:25:49 +00:00
libavdevice
libavfilter avfilter/vf_mp: remove unused sws related functions 2013-08-16 16:07:29 +02:00
libavformat matroskadec: Improve TTA duration calculation 2013-08-18 02:34:39 +02:00
libavresample
libavutil
libpostproc
libswresample
libswscale swscale: change ff_dither_8x8_128 dimensions to be consistent with the others 2013-08-16 16:06:59 +02:00
presets
tests avcodec/lzwenc: Add 1 additional bit of padding for gif 2013-08-14 23:15:54 +02:00
tools
.gitignore
arch.mak
Changelog
cmdutils_common_opts.h
cmdutils.c
cmdutils.h
common.mak
configure Revert "Merge commit of 'vdpau: remove old-style decoders'" 2013-08-17 22:17:49 +02:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_filter.c ffmpeg_filter: check that the input media type match the filter 2013-08-14 03:03:41 +02:00
ffmpeg_opt.c
ffmpeg.c
ffmpeg.h
ffplay.c
ffprobe.c
ffserver.c
INSTALL
library.mak
LICENSE
MAINTAINERS
Makefile
README
RELEASE
version.sh

FFmpeg README
-------------

1) Documentation
----------------

* Read the documentation in the doc/ directory in git.
  You can also view it online at http://ffmpeg.org/documentation.html

2) Licensing
------------

* See the LICENSE file.

3) Build and Install
--------------------

* See the INSTALL file.