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Jun Zhao
4394a36c6b
Add a shell script that validates commit messages against FFmpeg conventions. Based on the lint_commit_msg.py checker from mpv (Kacper Michajłow, Timo Rothenpieler). Supports three entry points: stdin (for CI pipelines), file argument (for pre-commit commit-msg hook), and revision range (for manual batch checking). Checks enforced (errors block): - Subject matches "component[/module]: description" pattern - No conventional-commits style (feat:/fix:/chore:/refactor:) - Blank line between subject and body - No duplicate Signed-off-by from same person - No multiple subject-like lines in body (squash-mess detection) Checks that only warn: - Subject line > 120 characters - Trailing whitespace on subject line - Subject should not end with a period - Prefix should not contain file extension (.c, .h, etc.) Merge, Revert and Reapply subjects are exempted from format checks. Usage: echo "avcodec/vvc: fix pred" | sh tools/check_commit_msg.sh sh tools/check_commit_msg.sh .git/COMMIT_EDITMSG sh tools/check_commit_msg.sh HEAD~5..HEAD Signed-off-by: Jun Zhao <barryjzhao@tencent.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.