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Linjie Fu d31a290226 lavc/hevc_cabac: fix cbf_cb and cbf_cr for transform depth 4 
The max transform depth is 5(from 0 to 4), so we need 5 cabac states for
cbf_cb and cbf_cr.

See Table 9-4 for details.

Signed-off-by: Xu Guangxin <guangxin.xu@intel.com>
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: James Almer <jamrial@gmail.com>
 		2019-12-17 14:12:16 -03:00
compat
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doc avfilter: Add tonemap vaapi filter for H2S 2019-12-17 07:49:49 +08:00
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fftools configure: Check for the SetDllDirectory and GetModuleHandle functions 2019-12-13 10:53:05 +02:00
libavcodec lavc/hevc_cabac: fix cbf_cb and cbf_cr for transform depth 4 2019-12-17 14:12:16 -03:00
libavdevice avdevice/xcbgrab: wrap non-shm image replies in a buffer ref 2019-12-06 10:09:49 +01:00
libavfilter avfilter/vf_stack: set framerate to VFR when inputs frame rates differs 2019-12-17 13:30:16 +01:00
libavformat avformat: Don't free old extradata before ff_alloc/get_extradata 2019-12-12 19:25:33 +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.