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fuchsia/third_party/ffmpeg/refs/heads/upstream/master
commit
2546b6f061fe6bc869ac9a1c0ed892555bd24402
[log]
author
Kacper Michajłow <kasper93@gmail.com>
Fri Oct 30 01:43:12 2026 +0100
committer
Kacper Michajłow <kasper93@gmail.com>
Wed Nov 04 05:28:57 2026 +0000
tree
76af73055d334f3ba4e20811dbddc7dcb95f171f
parent
2753fa2fb8321356a5968580812ba14cecf068f4 [diff] 
avcodec/h264_direct: keep the colocated type interlaced in the field branch

A colocated field picture always takes the field branch, but macroblocks
that were never decoded in a broken field picture keep a stale mb_type
without MB_TYPE_INTERLACED. The later IS_INTERLACED(mb_type_col[0])
check then picked the frame to frame path with the field remapping,
which reads the colocated motion vectors past the end of the picture.
Set the flag on the colocated type whenever the field branch is taken,
decoded macroblocks have it already.

Fixes: heap-buffer-overflow (read)
Fixes: 553213954/clusterfuzz-testcase-minimized-fuzzer_loadfile_mkv-6112026834042880

Found-by: https://github.com/google/oss-fuzz/tree/master/projects/mpv
Signed-off-by: Kacper Michajłow <kasper93@gmail.com>
1 file changed
tree: 76af73055d334f3ba4e20811dbddc7dcb95f171f
  1. .forgejo/
  2. compat/
  3. doc/
  4. ffbuild/
  5. fftools/
  6. libavcodec/
  7. libavdevice/
  8. libavfilter/
  9. libavformat/
  10. libavutil/
  11. libswresample/
  12. libswscale/
  13. presets/
  14. tests/
  15. tools/
  16. .gitattributes
  17. .gitignore
  18. .mailmap
  19. Changelog
  20. configure
  21. CONTRIBUTING.md
  22. COPYING.GPLv2
  23. COPYING.GPLv3
  24. COPYING.LGPLv2.1
  25. COPYING.LGPLv3
  26. CREDITS
  27. FUNDING.json
  28. INSTALL.md
  29. LICENSE.md
  30. MAINTAINERS
  31. Makefile
  32. README.md
  33. RELEASE
README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides means to alter decoded audio and video through a directed graph of connected filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements 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, ismindex and qt-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 Forgejo or 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.

See https://ffmpeg.org/developer.html for more information.