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Andreas Rheinhardt
d4d87f2ac5
avcodec/mpegvideo: Fix crash when using lowres with 10bit MPEG-4
In this case the macroblocks written to are smaller, yet the MPEG-4 Simple Studio Profile code for 10bit DPCM ignored this; e.g. in case of lowres = 2 or = 3, the sample mpeg4_sstp_dpcm.m4v from the FATE-suite reads beyond the end of the buffer. This commit fixes this by taking lowres into account. The DPCM macroblocks of the aforementioned sample look as good as can be expected after this patch; yet the non-DPCM coded macroblocks are simply corrupt. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodec
provides implementation of a wider range of codecs.libavformat
implements streaming protocols, container formats and basic I/O access.libavutil
includes hashers, decompressors and miscellaneous utility functions.libavfilter
provides means to alter decoded audio and video through a directed graph of connected filters.libavdevice
provides an abstraction to access capture and playback devices.libswresample
implements audio mixing and resampling routines.libswscale
implements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis tool to inspect multimedia content.
- Additional small tools such as
aviocat
,ismindex
andqt-faststart
.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch
or git send-email
. Github pull requests should be
avoided because they are not part of our review process and will be ignored.
Languages
C
90.3%
Assembly
7.8%
Makefile
1.3%
C++
0.2%
Objective-C
0.2%
Other
0.1%