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Zhong Li 6434b84460 fftools/qsv: add extra_hw_frames support 
Currently extra_hw_frames can't be applied to qsv since it
doesn't call function avcodec_get_hw_frames_parameters().

Give an option to fix ticket #7261 though it is not a perfect soultion
(allocate the minimum pool size internally and automatically).

Signed-off-by: Zhong Li <zhong.li@intel.com>
2018-08-07 11:26:40 +08:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc doc/formats: Add documentation for skip_estimate_duration_from_pts 2018-07-30 10:00:04 +05:30
ffbuild Merge commit '17b6c7efb471e8ff1b8a7271f6531ba1d52bf69c' 2017-11-12 01:02:02 -03:00
fftools fftools/qsv: add extra_hw_frames support 2018-08-07 11:26:40 +08:00
libavcodec lavc/qsvenc: expose qp of encoded frames 2018-08-07 11:26:37 +08:00
libavdevice avdevice/v4l2enc: add video4linux2 name alias 2018-06-18 16:26:23 -08:00
libavfilter vf_tonemap: Update hdr metadata with the new peak value 2018-08-06 18:35:52 +02:00
libavformat avformat/flvenc: Check audio packet size 2018-08-04 16:17:01 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil x86/pixelutils: don't use the AVX2 functions on CPUs known to be slow with them 2018-07-31 22:14:53 -03:00
libpostproc Bump minor versions after release/4.0 branching 2018-04-16 12:35:12 +02:00
libswresample swresample/swresample: Fix input channel count in resample_first computation 2018-07-26 02:42:42 +02:00
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Changelog lavc, doc, configure: add avs2 video decoder wrapper 2018-07-27 20:07:56 +08:00
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MAINTAINERS avfilter: Add colorconstancy filter 2018-07-23 22:34:52 +02:00
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RELEASE RELEASE: update for git after 3.4 branchpoint 2017-10-11 02:46:23 +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.