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Anton Khirnov f480c43dfa lavu/fifo: return errors on trying to read/write too much 
Trying to write too much will currently overwrite previous data. Trying
to read too much will either av_assert2() in av_fifo_drain() or return
old data. Trying to peek too much will either av_assert2() in
av_fifo_generic_peek_at() or return old data.

Return an error code in all these cases, which is safer and more
consistent.
 		2022-01-10 16:11:34 +01:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc doc/encoders.texi: Add doc for qsv 2022-01-07 14:06:10 +08:00
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fftools ffmpeg: remove a redundant assignment of interrupt_callback 2022-01-10 15:57:22 +01:00
libavcodec lavc/flac_parser: use a custom FIFO implementation 2022-01-10 15:59:52 +01:00
libavdevice avdevice/iec61883: #if unused code away, fix -O0 compilation 2022-01-08 18:15:18 +01:00
libavfilter lavfi/vf_libplacebo: fix side data stripping logic 2022-01-10 09:11:02 +01:00
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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 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.