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Andreas Rheinhardt b76f9bcfd0 avfilter/internal: Mark ff_filter_get_nb_threads() as av_pure 
It does not modify anything; it only returns a value, so it fulfills
the requirements for av_pure.
The deeper rationale behind this change is that this function is called
quite often inside arguments to FFMIN which may lead to two calls to it;
declaring this function as av_pure allows the compiler to optimize the
second call away.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 		2021-07-18 22:33:34 +02:00
compat avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
doc ffmpeg: add option readrate 2021-07-17 20:34:21 +05:30
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools fftools/ffmpeg: Fix declaration-after-statement warning 2021-07-18 21:09:02 +02:00
libavcodec Avoid calling functions repeatedly via FFMIN 2021-07-18 22:06:20 +02:00
libavdevice avdevice/libcdio: fix AVStream.cur_dts usage 2021-06-09 13:55:25 -03:00
libavfilter avfilter/internal: Mark ff_filter_get_nb_threads() as av_pure 2021-07-18 22:33:34 +02:00
libavformat Avoid calling functions repeatedly via FFMIN 2021-07-18 22:06:20 +02:00
libavutil avutil/hwcontext_videotoolbox: implement hwupload to convert AVFrame to CVPixelBuffer 2021-07-18 12:01:16 -07:00
libpostproc Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswresample Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswscale swscale/slice: Fix wrong return on error 2021-07-09 15:21:37 +02:00
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tests fate/ffprobe: Verify ffprobe XML output against schema file 2021-07-13 08:57:23 +02:00
tools tools/target_dec_fuzzer: Fuzz FF_DEBUG_* 2021-07-17 10:48:27 +02:00
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.gitignore avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
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Changelog avformat: add a concat protocol that takes a line break delimited list of resources 2021-07-02 10:21:06 -03:00
INSTALL.md
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LICENSE.md
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MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
README.md
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RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00
configure configure: use the correct header for the fallback libxext check 2021-07-15 16:53:56 -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 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.