mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2026-08-13 06:28:06 +00:00
de1b20a82b
Up until now, when using frame threaded encoding, an AVFrame would be allocated for every frame to be encoded. These AVFrames would reach the worker threads via a FIFO of tasks, a structure which contained the AVFrame as well as an index into an array which gives the place where the worker thread shall put the returned packet; in addition to that, said structure also contained several unused fields. This commit changes this: The AVFrames are now allocated during init in the array that is up until now only used to return the packets. The contents to be encoded are put into the AVFrame in the same array element that is also used to return the packets. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
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 a mean to alter decoded Audio and Video through chain of 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.