mirror of
https://mirror.skon.top/https://github.com/FFmpeg/FFmpeg
synced 2026-04-24 02:42:35 +08:00
d0e215fffcb4cf0fb9876bf5722dacdee71580be
This can be useful if doing testing of uncommon CPU extensions by running tests with QEMU (by configuring with e.g. "target_exec=qemu-aarch64"), by only running the checkasm tests, to get a reasonable test coverage without excessive test runtime. For such a config, setting fate_targets="fate-checkasm fate-cpu" can be a good tradeoff. Signed-off-by: Martin Storsjö <martin@martin.st>
…
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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.
Description
Languages
C
89.4%
Assembly
8.3%
Makefile
1.3%
C++
0.3%
GLSL
0.3%
Other
0.2%