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Andreas Rheinhardt
d90d0a715f
avcodec/msmpeg4dec: Reuse identical RL VLCs
Some of the RLTables used by msmpeg4dec actually coincide with other RLTables: ff_rl_table[5] coincides with ff_h263_rl_inter (and ff_rl_table[2] with ff_mpeg4_rl_intra). Given that ff_h263_rl_inter is always initialized before msmpeg4dec's RLTables are initialized, one can just reuse the VLC tables by copying the pointers; after all, there are no ownership issues for static data. This saves 70912B from the .bss segment, translating into actual memory savings when this decoder is actually used. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.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 a mean to alter decoded Audio and Video through chain of 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%