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ef651b84ce
Prepare for xyz12Torgb48 architecture-specific optimizations in subsequent patches by: - Grouping XYZ+RGB gamma LUTs and 3x3 matrices into SwsColorXform (ctx->xyz2rgb and ctx->rgb2xyz), replacing scattered fields. - Dropping the unused last matrix column giving the same or smaller SwsInternal size. - Renaming ff_xyz12Torgb48 and ff_rgb48Toxyz12 and routing calls via the new per-context function pointer (ctx->xyz12Torgb48 and ctx->rgb48Toxyz12) in graph.c and swscale.c. - Adding ff_sws_init_xyzdsp and invoking it in swscale init paths (normal and unscaled). - Making fill_xyztables public to ease its setup later in checkasm. These modifications do not introduce any functional changes. Signed-off-by: Arpad Panyik <Arpad.Panyik@arm.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 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.