FFmpeg  4.1
README.md
Go to the documentation of this file.
1 FFmpeg README
2 =============
3 
4 FFmpeg is a collection of libraries and tools to process multimedia content
5 such as audio, video, subtitles and related metadata.
6 
7 ## Libraries
8 
9 * `libavcodec` provides implementation of a wider range of codecs.
10 * `libavformat` implements streaming protocols, container formats and basic I/O access.
11 * `libavutil` includes hashers, decompressors and miscellaneous utility functions.
12 * `libavfilter` provides a mean to alter decoded Audio and Video through chain of filters.
13 * `libavdevice` provides an abstraction to access capture and playback devices.
14 * `libswresample` implements audio mixing and resampling routines.
15 * `libswscale` implements color conversion and scaling routines.
16 
17 ## Tools
18 
19 * [ffmpeg](https://ffmpeg.org/ffmpeg.html) is a command line toolbox to
20  manipulate, convert and stream multimedia content.
21 * [ffplay](https://ffmpeg.org/ffplay.html) is a minimalistic multimedia player.
22 * [ffprobe](https://ffmpeg.org/ffprobe.html) is a simple analysis tool to inspect
23  multimedia content.
24 * Additional small tools such as `aviocat`, `ismindex` and `qt-faststart`.
25 
26 ## Documentation
27 
28 The offline documentation is available in the **doc/** directory.
29 
30 The online documentation is available in the main [website](https://ffmpeg.org)
31 and in the [wiki](https://trac.ffmpeg.org).
32 
33 ### Examples
34 
35 Coding examples are available in the **doc/examples** directory.
36 
37 ## License
38 
39 FFmpeg codebase is mainly LGPL-licensed with optional components licensed under
40 GPL. Please refer to the LICENSE file for detailed information.
41 
42 ## Contributing
43 
44 Patches should be submitted to the ffmpeg-devel mailing list using
45 `git format-patch` or `git send-email`. Github pull requests should be
46 avoided because they are not part of our review process and will be ignored.