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Derek Buitenhuis d70dde2712 avcodec/h264_metadata_bsf: Allow zeroing constraint_set4_flag and constraint_set5_flag 
These bits are reserved in earlier versions of the H.264 spec, and
some poor hardware decoders require they are zero. Thus, it is useful
to be able to zero these on streams that may have them set. The result
is still a valid H.264 bitstream.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 		2021-06-29 15:31:06 +01:00
compat avfilter: compress CUDA PTX code if possible 2021-06-22 14:05:44 +02:00
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fftools ffmpeg: silence a thread_safe_callbacks deprecation warning 2021-06-10 21:57:44 -03:00
libavcodec avcodec/h264_metadata_bsf: Allow zeroing constraint_set4_flag and constraint_set5_flag 2021-06-29 15:31:06 +01:00
libavdevice avdevice/libcdio: fix AVStream.cur_dts usage 2021-06-09 13:55:25 -03:00
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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.