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It is possible because the requirements are fulfilled; it is also beneficial performance and code-size wise. For GCC 14 (with -O3), this reduced codesize by 26750B here; for Clang 20, it was 432B. Old benchmarks: mul_thrmat_c: 4.3 ( 1.00x) mul_thrmat_sse2: 4.3 ( 1.00x) store_slice_c: 2810.8 ( 1.00x) store_slice_sse2: 542.5 ( 5.18x) store_slice2_c: 3817.0 ( 1.00x) store_slice2_sse2: 410.4 ( 9.30x) New benchmarks: mul_thrmat_c: 4.3 ( 1.00x) mul_thrmat_sse2: 4.3 ( 1.00x) store_slice_c: 1510.1 ( 1.00x) store_slice_sse2: 545.2 ( 2.77x) store_slice2_c: 1763.5 ( 1.00x) store_slice2_sse2: 408.3 ( 4.32x) Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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.