417957ec5e
C908 X60 chrRangeFromJpeg_8_c: 2.7 2.5 chrRangeFromJpeg_8_rvv_i32: 1.7 1.5 chrRangeFromJpeg_24_c: 7.5 6.7 chrRangeFromJpeg_24_rvv_i32: 1.7 1.5 chrRangeFromJpeg_128_c: 55.2 34.7 chrRangeFromJpeg_128_rvv_i32: 6.5 3.0 chrRangeFromJpeg_144_c: 44.0 39.2 chrRangeFromJpeg_144_rvv_i32: 7.7 4.5 chrRangeFromJpeg_256_c: 78.2 69.5 chrRangeFromJpeg_256_rvv_i32: 12.2 6.0 chrRangeFromJpeg_512_c: 172.2 138.5 chrRangeFromJpeg_512_rvv_i32: 24.5 11.7 chrRangeToJpeg_8_c: 4.7 4.2 chrRangeToJpeg_8_rvv_i32: 2.0 1.7 chrRangeToJpeg_24_c: 13.7 12.2 chrRangeToJpeg_24_rvv_i32: 2.0 1.5 chrRangeToJpeg_128_c: 72.0 63.7 chrRangeToJpeg_128_rvv_i32: 6.7 3.2 chrRangeToJpeg_144_c: 80.7 71.7 chrRangeToJpeg_144_rvv_i32: 8.5 4.7 chrRangeToJpeg_256_c: 143.2 127.2 chrRangeToJpeg_256_rvv_i32: 13.5 6.5 chrRangeToJpeg_512_c: 285.7 253.7 chrRangeToJpeg_512_rvv_i32: 27.0 13.0 lumRangeFromJpeg_8_c: 1.7 1.5 lumRangeFromJpeg_8_rvv_i32: 1.2 1.0 lumRangeFromJpeg_24_c: 4.2 3.7 lumRangeFromJpeg_24_rvv_i32: 1.2 1.0 lumRangeFromJpeg_128_c: 21.7 19.2 lumRangeFromJpeg_128_rvv_i32: 3.7 1.7 lumRangeFromJpeg_144_c: 24.7 22.0 lumRangeFromJpeg_144_rvv_i32: 4.7 2.7 lumRangeFromJpeg_256_c: 43.7 39.0 lumRangeFromJpeg_256_rvv_i32: 7.5 3.2 lumRangeFromJpeg_512_c: 87.0 77.2 lumRangeFromJpeg_512_rvv_i32: 14.5 6.7 lumRangeToJpeg_8_c: 2.7 2.2 lumRangeToJpeg_8_rvv_i32: 1.0 1.0 lumRangeToJpeg_24_c: 7.2 6.5 lumRangeToJpeg_24_rvv_i32: 1.2 1.0 lumRangeToJpeg_128_c: 37.7 33.7 lumRangeToJpeg_128_rvv_i32: 3.7 2.0 lumRangeToJpeg_144_c: 42.5 37.7 lumRangeToJpeg_144_rvv_i32: 4.7 2.7 lumRangeToJpeg_256_c: 75.0 66.7 lumRangeToJpeg_256_rvv_i32: 7.5 3.5 lumRangeToJpeg_512_c: 149.5 133.0 lumRangeToJpeg_512_rvv_i32: 14.7 7.0
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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.