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Lynne 98405422be
hwcontext_vulkan: actually use the frames exec context for prep/import/export 
This was never actually used, likely due to confusion, as the device context
also had one used for uploads and downloads.
Also, since we're only using it for very quick image barriers (which are
practically free on all hardware), use the compute queue instead of the
transfer queue.
2020-05-23 19:07:39 +01:00
compat compat/avisynth: remove avisynth headers 2020-04-05 01:17:55 +02:00
doc hwcontext: add av_hwdevice_ctx_create_derived_opts 2020-05-23 19:07:26 +01:00
ffbuild common.mak: Also clean Windows debug files. 2020-03-21 18:46:00 +01:00
fftools Stop hardcoding align=32 in av_frame_get_buffer() calls. 2020-05-22 14:38:57 +02:00
libavcodec avcodec/xiph: Return better error codes 2020-05-23 07:07:36 +02:00
libavdevice avdevice/v4l2enc: Allow writing non-rawvideos to v4l2. 2020-05-09 15:44:43 +01:00
libavfilter lavfi: add untile filter. 2020-05-23 15:52:27 +02:00
libavformat oggdec: remove the oggparsedaala subdemuxer 2020-05-23 19:07:20 +01:00
libavresample
libavutil hwcontext_vulkan: actually use the frames exec context for prep/import/export 2020-05-23 19:07:39 +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.