mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-08-04 22:03:09 +02:00
a5ff6ea32d9aafc3a8da9ce40c510a6858794c40
It is confusing, because the AV_RL32("ASUS") already returns an endian-independent value, so converting it via av_le2ne32() makes no real sense: one would need to transform the native value to le and write it as a natie endian uint32_t for it to make sense (the current code only works because le2ne32 and ne2le32 are the same for both endianness that we care about). Or one can just use AV_RL32 and create the number via MKTAG(). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
…
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
90.1%
Assembly
7.9%
Makefile
1.3%
C++
0.2%
Objective-C
0.2%
Other
0.1%