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Martin Vignali ff3b4f91cd avcodec/prores_aw : add support for prores 444 with alpha 
only 16b alpha is supported (not 8 bits)

following official encoder, alpha data doesn't impact
yuv plane quality.

So the alpha data encoding is done after the yuv part.
It's also avoid to loose quality in yuv part when
alpha is not uniform.

the alpha encoding funcs is mainly take from prores_ks
encoder, except for the alpha data reorganization
2018-11-08 22:21:13 +01:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc avfilter/af_afir: add minp/maxp options to control latency and speed 2018-11-08 22:07:14 +01:00
ffbuild
fftools ffmpeg: log corrupted packets and frames 2018-10-14 23:52:41 +02:00
libavcodec avcodec/prores_aw : add support for prores 444 with alpha 2018-11-08 22:21:13 +01:00
libavdevice Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libavfilter avfilter/af_afir: add minp/maxp options to control latency and speed 2018-11-08 22:07:14 +01:00
libavformat lavf/apngdec: Return EOF for incomplete files. 2018-11-08 13:38:08 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil libavutil: Undeprecate the AVFrame reordered_opaque field 2018-11-05 15:52:08 +02:00
libpostproc Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswscale Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
presets
tests fate/api-h264-slice-test: use cleaner error handling 2018-11-03 12:49:00 -03:00
tools tools/qt-faststart: Allow free atoms after moov atom. 2018-08-01 00:49:54 +02:00
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.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
.travis.yml
Changelog avcodec: libdav1d AV1 decoder wrapper. 2018-11-05 21:48:11 -03:00
configure avcodec: libdav1d AV1 decoder wrapper. 2018-11-05 21:48:11 -03:00
CONTRIBUTING.md
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MAINTAINERS MAINTAINERS: remove myself as hls demuxer maintainer 2018-10-16 01:18:00 +03:00
Makefile avcodec/parser: move parsers list and related API to its own file 2018-07-21 16:08:29 -03:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE RELEASE: bump to 4.1.git 2018-11-02 00:55:49 +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.