5ecf5b93dd
Some parts of mpegvideo.c behave differently depending upon whether AVCodecContext.draw_horiz_band is set or not. This differing behaviour makes lots of FATE tests fail and leads to garbage output, although setting this callback is not supposed to change the output at all. These checks have been added in commits 3994623df2efd2749631c3492184dd8d4ffa9d1b and b68ab2609c67d07b6f12ed65125d76bf9a054479. The commit messages do not contain a real reason for adding the checks and it is indeed a mystery to me. But removing these checks fixes the FATE tests when one adds an (empty) draw_horiz_band when using a codec that claims to support it. 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
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.