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Marton Balint f076a5fef6 Revert "aviobuf: Discard old buffered, previously read data in ffio_read_partial" 
This is unneeded after 2ca48e4666 and it breaks
ffio_ensure_seekback().

This reverts commit 53c25ee073.

Signed-off-by: Marton Balint <cus@passwd.hu>
2020-10-16 23:16:46 +02:00
compat compat/cuda/ptx2c: remove shell loop; fix BSD sed compat 2020-06-01 22:10:41 -05:00
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fftools fftools/ffprobe: use av_timecode_make_smpte_tc_string2 2020-09-13 17:51:57 +02:00
libavcodec avcodec/av1dec: add cur_frame.spatial_id and temporal_id to AV1Frame 2020-10-16 13:34:31 -03:00
libavdevice avdevice/lavfi: av_malloc -> av_malloc_array 2020-09-21 09:30:55 +08:00
libavfilter avfilter/af_aiir: use transposed II form for biquad sections 2020-10-16 23:07:27 +02:00
libavformat Revert "aviobuf: Discard old buffered, previously read data in ffio_read_partial" 2020-10-16 23:16:46 +02:00
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libavutil avutil/pixdesc: add missing FF_API_PSEUDOPAL check 2020-10-02 00:18:13 -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.