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chromium / chromium / third_party / ffmpeg / c6a889f3e09249d2a643a6beb7d44a8e42ea3541
commitc6a889f3e09249d2a643a6beb7d44a8e42ea3541[log] [tgz]
authorMichael Niedermayer <[email protected]>Tue Feb 04 02:58:45 2025
committerMichael Niedermayer <[email protected]>Thu Apr 10 01:01:33 2025
treeb1dbaba587dc802ff139e4d78f7bf46fed72f801
parentd16a058dbc9974f5919da3315e8cb41f8e6102f0 [diff]
avcodec/osq: avoid undefined negation

Fixes: negation of -2147483648 cannot be represented in type 'int32_t' (aka 'int'); cast to an unsigned type to negate this value to itself
Fixes: 390646659/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_OSQ_fuzzer-5040277374435328

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
1 file changed
tree: b1dbaba587dc802ff139e4d78f7bf46fed72f801
  1. compat/
  2. doc/
  3. ffbuild/
  4. fftools/
  5. libavcodec/
  6. libavdevice/
  7. libavfilter/
  8. libavformat/
  9. libavutil/
  10. libpostproc/
  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. INSTALL.md
  28. LICENSE.md
  29. MAINTAINERS
  30. Makefile
  31. README.md
  32. 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 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.