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With Apple M1 (no i8mm): put_luma_hv_8_4x4_c: 2.2 ( 1.00x) put_luma_hv_8_4x4_neon: 0.8 ( 3.00x) put_luma_hv_8_8x8_c: 7.0 ( 1.00x) put_luma_hv_8_8x8_neon: 0.8 ( 9.33x) put_luma_hv_8_16x16_c: 22.8 ( 1.00x) put_luma_hv_8_16x16_neon: 2.5 ( 9.10x) put_luma_hv_8_32x32_c: 84.8 ( 1.00x) put_luma_hv_8_32x32_neon: 9.5 ( 8.92x) put_luma_hv_8_64x64_c: 333.0 ( 1.00x) put_luma_hv_8_64x64_neon: 35.5 ( 9.38x) put_luma_hv_8_128x128_c: 1294.5 ( 1.00x) put_luma_hv_8_128x128_neon: 137.8 ( 9.40x) With Pixel 8 Pro: put_luma_hv_8_4x4_c: 5.0 ( 1.00x) put_luma_hv_8_4x4_neon: 0.8 ( 6.67x) put_luma_hv_8_4x4_i8mm: 0.2 (20.00x) put_luma_hv_8_8x8_c: 13.2 ( 1.00x) put_luma_hv_8_8x8_neon: 1.2 (10.60x) put_luma_hv_8_8x8_i8mm: 1.2 (10.60x) put_luma_hv_8_16x16_c: 44.2 ( 1.00x) put_luma_hv_8_16x16_neon: 4.5 ( 9.83x) put_luma_hv_8_16x16_i8mm: 4.2 (10.41x) put_luma_hv_8_32x32_c: 160.8 ( 1.00x) put_luma_hv_8_32x32_neon: 17.5 ( 9.19x) put_luma_hv_8_32x32_i8mm: 16.0 (10.05x) put_luma_hv_8_64x64_c: 611.2 ( 1.00x) put_luma_hv_8_64x64_neon: 68.0 ( 8.99x) put_luma_hv_8_64x64_i8mm: 62.2 ( 9.82x) put_luma_hv_8_128x128_c: 2384.8 ( 1.00x) put_luma_hv_8_128x128_neon: 268.8 ( 8.87x) put_luma_hv_8_128x128_i8mm: 245.8 ( 9.70x)
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.