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6c3a82f043
- Introduce ff_draw_init2, which takes explicit colorspace and range args - Use lavu/csp and lavfi/colorspace for conversion, rather than the lavu/colorspace.h macros - Use the passed-in colorspace when performing RGB->YUV conversions The upshot of this is: - Support for YUV spaces other than BT601 - Better rounding for all conversions - Particular rounding improvements in >8-bit formats, which previously used simple left-shifts - Support for limited-range RGB - Support for full-range YUV in non-J pixfmts Due to the rounding improvements, this results in a large number of minor changes to FATE tests. Signed-off-by: rcombs <rcombs@rcombs.me>
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.