b710f881ce
butterflies_float_c: 1057.0 butterflies_float_rvv_f32: 351.0 (before) butterflies_float_rvv_f32: 329.5 (after) vector_dmac_scalar_c: 819.0 vector_dmac_scalar_rvv_f64: 670.5 (before) vector_dmac_scalar_rvv_f64: 431.0 (after) vector_dmul_c: 800.2 vector_dmul_rvv_f64: 541.5 (before) vector_dmul_rvv_f64: 426.0 (after) vector_dmul_scalar_c: 545.7 vector_dmul_scalar_rvv_f64: 670.7 (before) vector_dmul_scalar_rvv_f64: 324.7 (after) vector_fmac_scalar_c: 804.5 vector_fmac_scalar_rvv_f32: 412.7 (before) vector_fmac_scalar_rvv_f32: 214.5 (after) vector_fmul_c: 811.2 vector_fmul_rvv_f32: 285.7 (before) vector_fmul_rvv_f32: 214.2 (after) vector_fmul_add_c: 1313.0 vector_fmul_add_rvv_f32: 349.0 (before) vector_fmul_add_rvv_f32: 290.2 (after) vector_fmul_reverse_c: 815.7 vector_fmul_reverse_rvv_f32: 529.2 (before) vector_fmul_reverse_rvv_f32: 515.7 (after) vector_fmul_scalar_c: 546.0 vector_fmul_scalar_rvv_f32: 350.2 (before) vector_fmul_scalar_rvv_f32: 169.5 (after)
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.