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hax@riseup.net 118e63dff1 libavformat/nut: Support SSA and ASS subtitles 
ffmpeg documentation says the NUT container supports SubStation Alpha
This brings actual functionality in line with documentation.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 		2020-08-22 22:51:07 +02:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
doc avfilter/af_biquads: add different transform types 2020-08-21 22:46:07 +02:00
ffbuild ffbuild: Refine MIPS handling 2020-07-23 16:30:02 +02:00
fftools ffplay: do not set redundant channel count on abuffersink. 2020-08-20 12:49:08 +02:00
libavcodec avcodec/dvbsubdec: error out on unsupported coding methods 2020-08-22 19:02:01 +02:00
libavdevice avdevice/xcbgrab: check return values of xcb query functions 2020-08-15 15:32:52 -04:00
libavfilter avfilter/af_biquads: add different transform types 2020-08-21 22:46:07 +02:00
libavformat libavformat/nut: Support SSA and ASS subtitles 2020-08-22 22:51:07 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil lavu/buffer: forward av_buffer_realloc() error code. 2020-08-21 11:44:30 +02:00
libpostproc Bump minor versions after branching 4.3 2020-06-08 22:49:04 +02:00
libswresample swresample/rematrix: handle 22.2 as a 9 channel layout 2020-08-18 22:47:35 +03:00
libswscale swscale/x86/output: add missing AVX2 support preprocessor wrappers 2020-08-20 15:14:56 -03:00
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tests fate: add fate-sub-dvb test 2020-08-22 19:02:01 +02:00
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Changelog avcodec: add RPZA encoder 2020-08-21 22:46:07 +02:00
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LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
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configure avcodec: move ff_alloc_a53_sei() to atsc_53 2020-08-15 13:01:25 -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.