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Marton Balint 1a90cf4410 avdevice/alsa_dec: make sure we have enough data in non-blocking mode 
Otherwise we might return 1-2 samples per packet if av_read_frame() call rate is
only sligthly less than the stream sample rate.

Signed-off-by: Marton Balint <cus@passwd.hu>
2021-03-12 23:55:30 +01:00
compat compat/cuda: correct ushort4 to use ushort 2021-02-22 17:03:52 +01:00
doc avcodec: add a get_encode_buffer() callback to AVCodecContext 2021-03-12 19:49:08 -03:00
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libavcodec avcodec: add a get_encode_buffer() callback to AVCodecContext 2021-03-12 19:49:08 -03:00
libavdevice avdevice/alsa_dec: make sure we have enough data in non-blocking mode 2021-03-12 23:55:30 +01:00
libavfilter avfilter/vf_uspp: Fix leak of packet side data 2021-03-12 19:05:37 +01:00
libavformat avformat/adp, svs: Remove redundant av_shrink_packet() 2021-03-12 17:13:10 +01:00
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libpostproc lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 2021-01-01 14:14:57 +01:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
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README.md
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +02:00

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.