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Anton Khirnov fa26e17747 lavfi/vf_v360: implement output mask for barrelsplit 
The top/bottom of the barrel are each coded as two semicircles inside a
square block in the frame. Mask out the parts of the square that lie
outside of these semicircles, so they are made transparent when
alpha_mask=1.

Fixes the other part of #9725.
2022-05-24 13:41:24 +02:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc avfilter: Add blockdetect filter 2022-05-24 11:21:36 +02:00
ffbuild lib*/version: Move library version functions into files of their own 2022-05-10 06:49:32 +02:00
fftools fftools/ffmpeg: fix 2pass log file names 2022-05-24 13:35:16 +02:00
libavcodec avcodec/libdavs2: export has_b_frames info 2022-05-24 18:03:12 +08:00
libavdevice avdevice/dshow: reuse unused variables. 2022-05-12 22:06:44 -03:00
libavfilter lavfi/vf_v360: implement output mask for barrelsplit 2022-05-24 13:41:24 +02:00
libavformat Switch uses of av_fopen_utf8 to avpriv_fopen_utf8 2022-05-23 13:52:45 +03:00
libavutil libavutil: Deprecate av_fopen_utf8, provide an avpriv version 2022-05-23 13:52:26 +03:00
libpostproc lib*/version: Move library version functions into files of their own 2022-05-10 06:49:32 +02:00
libswresample lib*/version: Move library version functions into files of their own 2022-05-10 06:49:32 +02:00
libswscale lib*/version: Move library version functions into files of their own 2022-05-10 06:49:32 +02:00
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tests tests/fate/vcodec: add tests for ffv1 2pass mode 2022-05-24 13:35:16 +02:00
tools avcodec/codec_internal: Add FFCodec, hide internal part of AVCodec 2022-03-21 01:33:09 +01:00
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Changelog avfilter: Add blockdetect filter 2022-05-24 11:21:36 +02:00
configure avformat/movenc: Add support for AVIF muxing 2022-05-13 12:46:21 +05:30
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INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS avformat/image2: add Jpeg XL as image2 format 2022-04-23 19:51:46 +02:00
Makefile lib*/version: Move library version functions into files of their own 2022-05-10 06:49:32 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
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 means to alter decoded audio and video through a directed graph of connected 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.