1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-03 14:32:16 +02:00
Clément Bœsch 9a23b149c7 Merge commit '715f139c9bd407ef7f4d1f564ad683140ec61e6d'
* commit '715f139c9bd407ef7f4d1f564ad683140ec61e6d': (23 commits)
  vp9lpf/x86: make filter_16_h work on 32-bit.
  vp9lpf/x86: make filter_48/84/88_h work on 32-bit.
  vp9lpf/x86: make filter_44_h work on 32-bit.
  vp9lpf/x86: make filter_16_v work on 32-bit.
  vp9lpf/x86: make filter_48/84_v work on 32-bit.
  vp9lpf/x86: make filter_88_v work on 32-bit.
  vp9lpf/x86: make filter_44_v work on 32-bit.
  vp9lpf/x86: save one register in SIGN_ADD/SUB.
  vp9lpf/x86: store unpacked intermediates for filter6/14 on stack.
  vp9lpf/x86: move variable assigned inside macro branch.
  vp9lpf/x86: simplify ABSSUM_CMP by inverting the comparison meaning.
  vp9lpf/x86: remove unused register from ABSSUB_CMP macro.
  vp9lpf/x86: slightly simplify 44/48/84/88 h stores.
  vp9lpf/x86: make cglobal statement more conservative in register allocation.
  vp9lpf/x86: save one register in loopfilter surface coverage.
  vp9lpf/x86: add ff_vp9_loop_filter_[vh]_44_16_{sse2,ssse3,avx}.
  vp9lpf/x86: add ff_vp9_loop_filter_h_{48,84}_16_{sse2,ssse3,avx}().
  vp9lpf/x86: add an SSE2 version of vp9_loop_filter_[vh]_88_16
  vp9lpf/x86: add ff_vp9_loop_filter_[vh]_88_16_{ssse3,avx}.
  vp9lpf/x86: add ff_vp9_loop_filter_[vh]_16_16_sse2().
  ...

All these commits are cherry-picks from FFmpeg. Maybe some slight
differences sneaked in but the Libav codebase still differs too much
with our own to make a proper diff. This merge is a noop.

Merged-by: Clément Bœsch <u@pkh.me>
2017-03-23 11:43:48 +01:00
2017-03-21 12:15:50 +00:00
2017-03-17 13:12:25 -04:00

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.
  • ffserver is a multimedia streaming server for live broadcasts.
  • 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.

Languages
C 90.3%
Assembly 7.8%
Makefile 1.3%
C++ 0.2%
Objective-C 0.1%
Other 0.1%