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Niklas Haas 459648761f avcodec/hevcdec: fix segfault on invalid film grain metadata 
Invalid input files may contain film grain metadata which survives
ff_h274_film_grain_params_supported() but does not pass
av_film_grain_params_select(), leading to a SIGSEGV on hevc_frame_end().

Fix this by duplicating the av_film_grain_params_select() check at frame
init time.

An alternative solution here would be to defer the incompatibility check
to hevc_frame_end(), but this has the downside of allocating a film
grain buffer even when we already know we can't apply film grain.

Fixes: https://trac.ffmpeg.org/ticket/10951
2024-04-09 15:01:58 +02:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc doc/ffmpeg: document that there can be multiple complex filtergraphs 2024-04-09 10:34:18 +02:00
ffbuild
fftools fftools/ffmpeg_filter: implement filtergraph chaining 2024-04-09 10:34:18 +02:00
libavcodec avcodec/hevcdec: fix segfault on invalid film grain metadata 2024-04-09 15:01:58 +02:00
libavdevice avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libavfilter lavfi/avfilter: add an "auto" constant to the threads option 2024-04-09 10:34:18 +02:00
libavformat lavf/lrc: fix comments in headers 2024-04-06 12:59:56 +02:00
libavutil avutil/pix{desc,fmt}: add new matrix coefficients from H.273 v3 2024-04-03 21:31:35 +03:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswscale swscale/utils: Fix xInc overflow 2024-04-04 19:38:29 +02:00
presets
tests avcodec/ac3: Implement sum_square_butterfly_float for aarch64 NEON 2024-04-08 13:36:40 +03:00
tools tools/target_dec_fuzzer: Adjust threshold for RV30 2024-04-03 00:44:37 +02:00
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Changelog fftools/ffmpeg_filter: implement filtergraph chaining 2024-04-09 10:34:18 +02:00
configure avcodec/libaomenc: bump the minimum required version to 2.0.0 2024-04-05 14:32:08 -03:00
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RELEASE RELEASE: update after 7.0 branch 2024-04-02 13:02:39 -03:00

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.