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Michael Niedermayer bfd0d09637
avformat/movenc: Check that cts fits in 32bit 
Fixes: Assertion av_rescale_rnd(start_dts, mov->movie_timescale, track->timescale, AV_ROUND_DOWN) <= 0 failed at libavformat/movenc.c:3694
Fixes: poc2

Found-by: Wang Dawei and Zhou Geng, from Zhongguancun Laboratory
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d88c284c18)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-04-03 01:45:59 +02:00
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libavcodec avcodec/truemotion1: Height not being a multiple of 4 is unsupported 2024-04-03 00:58:59 +02:00
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libavfilter avfilter/vf_signature: Dont crash on no frames 2024-04-03 01:33:39 +02:00
libavformat avformat/movenc: Check that cts fits in 32bit 2024-04-03 01:45:59 +02:00
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libavutil avformat/timecode: use 64bit for intermediate for rounding in fps_from_frame_rate() 2024-04-03 01:02:22 +02:00
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RELEASE Update for 3.4.13 2023-06-04 20:26:33 +02:00
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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 a mean to alter decoded Audio and Video through chain of 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.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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.