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Andreas Rheinhardt 631c4db13b avfilter/vf_colorkey: Don't manually make frame writable 
Instead, set AVFilterPad.needs_writable.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-08-15 22:48:46 +02:00
compat compat/cuda: add __expf() implementation 2021-08-14 15:06:47 +02:00
doc avfilter/avf_showspectrum: add unwrapped phase data mode 2021-08-15 17:01:11 +02:00
ffbuild avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
fftools qsvdec: add support for HW_DEVICE_CTX method 2021-08-11 13:45:36 -03:00
libavcodec avcodec/h264_sei: fix H.274 film grain parsing 2021-08-15 13:15:21 -03:00
libavdevice lavd/lavfi.c: Set time_base for 608 cc to container time_base. 2021-08-02 14:00:52 +02:00
libavfilter avfilter/vf_colorkey: Don't manually make frame writable 2021-08-15 22:48:46 +02:00
libavformat avformat/isom_tags: prefer in24 for 24bit PCM in MOV 2021-08-14 20:19:51 +03:00
libavutil lavu/internal: add FF_FIELD_AT(). 2021-08-14 09:17:45 +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
libswscale avutil/internal, swresample/audioconvert: Remove cpu.h inclusions 2021-07-22 14:33:45 +02:00
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tests FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
tools FATE: add a test for sliced scaling 2021-08-08 19:26:05 +02:00
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Changelog avfilter: add afwtdn filter 2021-07-24 12:24:40 +02:00
configure configure: [loongson] adjust MMI check in configure 2021-08-10 16:16:06 +02:00
CONTRIBUTING.md
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
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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.