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Andreas Rheinhardt 4e0da7d311 avutil/buffer: Avoid allocation of AVBuffer when using buffer pool 
Do this by putting an AVBuffer structure into BufferPoolEntry and
reuse it for all subsequent uses of said BufferPoolEntry.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-18 23:16:49 +02:00
compat compat/cuda: add __expf() implementation 2021-08-14 15:06:47 +02:00
doc avutil/buffer: constify some function parameters 2021-09-17 13:28:09 -03:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools ffmpeg: take into account image flipping in the display matrix 2021-09-16 12:57:06 -03:00
libavcodec avcodec/mpeg12dec: Do not put mpeg_f_code into an invalid state on error return 2021-09-17 19:56:05 +02:00
libavdevice libavdevice/avfoundation.m: fix potential unreleased lock issue 2021-09-17 15:31:40 +02:00
libavfilter avfilter/vf_zscale: Don't make assumptions about zimg's range enums 2021-09-18 23:16:44 +02:00
libavformat avformat/libsrt: remove url_get_file_handle implementation 2021-09-18 22:10:03 +02:00
libavutil avutil/buffer: Avoid allocation of AVBuffer when using buffer pool 2021-09-18 23:16:49 +02:00
libpostproc postproc/postprocess: Remove legacy cruft 2021-07-29 22:02:06 +02:00
libswresample (postproc|swresample)/version: Don't include libavutil/avutil.h 2021-07-29 22:02:05 +02:00
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configure avfilter/frei0r: use win32dlfcn wrapper 2021-09-15 12:37:02 +02:00
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README.md
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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.