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Andreas Rheinhardt 5766c8e968 avcodec/utils: Remove ff_codec_open2_recursive() 
This function existed to enable codecs with non-threadsafe init functions
to initialize other codecs despite the fact that normally no two codecs
with non-threadsafe init functions can be initialized at the same time
(there is a mutex guarding this). Yet there are no users of this
function any more as all users have been made thread-safe (switching
away from ff_codec_open2_recursive() was required for this as said
function requires the caller to hold the lock to the mutex guarding the
initializations and this is only true for codecs with the
FF_CODEC_CAP_INIT_THREADSAFE flag unset); so remove it.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-12-04 15:46:46 +01:00
compat
doc avfilter/af_stereotools: add support for commands 2020-12-04 15:40:42 +01:00
ffbuild
fftools fftools/cmdutils: also print warnings when using -sinks and -sources 2020-12-03 18:32:57 +01:00
libavcodec avcodec/utils: Remove ff_codec_open2_recursive() 2020-12-04 15:46:46 +01:00
libavdevice avdevice/decklink: warn about too old decklink API version 2020-12-03 18:32:57 +01:00
libavfilter avfilter/af_stereotools: add support for commands 2020-12-04 15:40:42 +01:00
libavformat avformat/cafdec: Check the return code from av_add_index_entry() 2020-11-29 16:10:56 +01:00
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libavutil avutil/timecode: add av_timecode_init_from_components 2020-12-03 18:32:54 +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 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.
  • 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.