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James Almer 28746a0e20 avcodec/libdav1d: use a custom picture allocator 
Replaces the libdav1d internal allocator. It uses an AVBufferPool to reduce the
amount of allocated buffers.
About 5% speed up when decoding 720p or higher streams.

Reviewed-by: "Vittorio Giovara <vittorio.giovara@gmail.com>"
Signed-off-by: James Almer <jamrial@gmail.com>
 		2019-03-12 19:17:45 -03:00
compat additional math.h functions for djgpp 2018-11-28 22:16:07 +11:00
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libavcodec avcodec/libdav1d: use a custom picture allocator 2019-03-12 19:17:45 -03:00
libavdevice libavdevice/gdigrab: fix HIDPI support for mouse positioning 2019-01-30 21:55:22 +01:00
libavfilter vf_showinfo: Fix timecode display 2019-03-09 18:42:34 +00:00
libavformat lavf/matroskaenc: Allow dvdsub remuxing from some containers. 2019-03-10 20:45:45 +01:00
libavresample
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libavutil avcodec/mips: [loongson] mmi optimizations for VP9 put and avg functions 2019-02-27 01:51:40 +01:00
libpostproc postproc/postprocess_template: remove FF_REG_sp from clobber list 2018-12-22 17:41:44 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
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Changelog avcodec/version: Bump micro-version for nvdec/cuviddec changes 2019-02-16 10:43:24 -08:00
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configure avcodec/libdav1d: route dav1d internal logs through av_log() 2019-03-12 19:07:50 -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.