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James Almer 6e80079a28 avcodec: increase AV_INPUT_BUFFER_PADDING_SIZE to 64 
AVX-512 support has been introduced, and even if no functions currently
use zmm registers (able to load as much as 64 bytes of consecutive data
per instruction), they will be added eventually.

Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Tested-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
2018-01-11 23:46:31 -03:00
compat compat/os2threads: support static mutexes 2018-01-07 00:14:12 -03:00
doc doc/filters: fix error in aiir options names 2018-01-10 20:32:22 +01:00
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libavcodec avcodec: increase AV_INPUT_BUFFER_PADDING_SIZE to 64 2018-01-11 23:46:31 -03:00
libavdevice lavd/alsa: Double maximum alsa buffer size. 2017-11-27 14:05:28 +01:00
libavfilter avfilter/x86/vf_interlace : add AVX2 version 2018-01-11 21:03:19 +01:00
libavformat avformat/aiffdec: AIFF fix in case of ANNO 2018-01-11 03:29:25 +01:00
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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.