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e3bcb9ac76
The existing fate-lavf-yuv420p.y4m covers only the default format. Add four entries that pass -pix_fmt explicitly to the lavf_video macro: yuv422p, yuv444p, yuv411p, and gray. These exercise the branches in yuv4mpegpipe_write_header() that write the "C422", "C444", "C411", and "Cmono" chroma descriptor strings in the stream header. All four are gated on ENCDEC(RAWVIDEO,YUV4MPEGPIPE) and added to FATE_LAVF_VIDEO_SCALE so they inherit the requirement for CONFIG_SCALE_FILTER that lavf_video's -auto_conversion_filters needs. Reference files were generated from the actual encoder output and follow the md5+size+CRC format used by the other lavf references. Signed-off-by: Soham Kute <officialsohamkute@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 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.