Google Git
Sign in
fuchsia/third_party/ffmpeg/upstream/master
commit
eb7f4b4e792cd8f96cd05b156618a8d88840b25b
[log]
author
Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Sun Jun 14 14:27:00 2026 +0200
committer
Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Wed Jun 17 14:33:28 2026 +0200
tree
e73e8fc4d6fa1df816d906b64d3bcc1c9ca2c8ca
parent
93412ff6024c85958f49b40d1b04270f9552adcb [diff]
avcodec/x86/h264_intrapred: Add AVX2 horizontal pred versions

pred8x8_horizontal_8_c:                   6.9
pred8x8_horizontal_8_sse2:                9.9 ( 0.70x)
pred8x8_horizontal_8_ssse3:               9.5 ( 0.73x)
pred8x8_horizontal_8_avx2:                5.1 ( 1.35x)

pred16x16_horizontal_8_c:                10.9
pred16x16_horizontal_8_sse2:             15.0 ( 0.72x)
pred16x16_horizontal_8_ssse3:            11.7 ( 0.93x)
pred16x16_horizontal_8_avx2:              9.6 ( 1.13x)

The new functions are cheap and only occupy 2*48B.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2 files changed
tree: e73e8fc4d6fa1df816d906b64d3bcc1c9ca2c8ca
  1. .forgejo/
  2. compat/
  3. doc/
  4. ffbuild/
  5. fftools/
  6. libavcodec/
  7. libavdevice/
  8. libavfilter/
  9. libavformat/
  10. libavutil/
  11. libswresample/
  12. libswscale/
  13. presets/
  14. tests/
  15. tools/
  16. .gitattributes
  17. .gitignore
  18. .mailmap
  19. Changelog
  20. configure
  21. CONTRIBUTING.md
  22. COPYING.GPLv2
  23. COPYING.GPLv3
  24. COPYING.LGPLv2.1
  25. COPYING.LGPLv3
  26. CREDITS
  27. FUNDING.json
  28. INSTALL.md
  29. LICENSE.md
  30. MAINTAINERS
  31. Makefile
  32. README.md
  33. RELEASE
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 means to alter decoded audio and video through a directed graph of connected 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.