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FFmpeg git repo
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Note: this implementation is limited to x86_64 due to general purpose register pressure. checkasm --bench on an Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz: yuv420p_gbrp_8_c: 118.5 yuv420p_gbrp_8_ssse3: 93.3 yuv420p_gbrp_128_c: 1068.3 yuv420p_gbrp_128_ssse3: 319.3 yuv420p_gbrp_1080_c: 8841.8 yuv420p_gbrp_1080_ssse3: 2211.8 yuv420p_gbrp_1920_c: 15903.8 yuv420p_gbrp_1920_ssse3: 3814.3 yuv422p_gbrp_8_c: 144.8 yuv422p_gbrp_8_ssse3: 93.8 yuv422p_gbrp_128_c: 1395.8 yuv422p_gbrp_128_ssse3: 313.0 yuv422p_gbrp_1080_c: 11551.5 yuv422p_gbrp_1080_ssse3: 2240.8 yuv422p_gbrp_1920_c: 20585.3 yuv422p_gbrp_1920_ssse3: 5249.5 yuva420p_gbrp_8_c: 117.5 yuva420p_gbrp_8_ssse3: 92.0 yuva420p_gbrp_128_c: 1593.0 yuva420p_gbrp_128_ssse3: 319.3 yuva420p_gbrp_1080_c: 8694.5 yuva420p_gbrp_1080_ssse3: 2186.0 yuva420p_gbrp_1920_c: 15946.5 yuva420p_gbrp_1920_ssse3: 3805.3 |
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compat | ||
doc | ||
ffbuild | ||
fftools | ||
libavcodec | ||
libavdevice | ||
libavfilter | ||
libavformat | ||
libavutil | ||
libpostproc | ||
libswresample | ||
libswscale | ||
presets | ||
tests | ||
tools | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
Changelog | ||
configure | ||
CONTRIBUTING.md | ||
COPYING.GPLv2 | ||
COPYING.GPLv3 | ||
COPYING.LGPLv2.1 | ||
COPYING.LGPLv3 | ||
CREDITS | ||
INSTALL.md | ||
LICENSE.md | ||
MAINTAINERS | ||
Makefile | ||
README.md | ||
RELEASE |
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.