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On Apple M1: put_chroma_hv_8_4x4_c: 1.7 ( 1.00x) put_chroma_hv_8_4x4_neon: 0.2 ( 7.67x) put_chroma_hv_8_8x8_c: 5.5 ( 1.00x) put_chroma_hv_8_8x8_neon: 0.5 (11.53x) put_chroma_hv_8_16x16_c: 18.5 ( 1.00x) put_chroma_hv_8_16x16_neon: 1.5 (12.53x) put_chroma_hv_8_32x32_c: 72.5 ( 1.00x) put_chroma_hv_8_32x32_neon: 4.7 (15.34x) put_chroma_hv_8_64x64_c: 274.0 ( 1.00x) put_chroma_hv_8_64x64_neon: 18.5 (14.83x) put_chroma_hv_8_128x128_c: 1058.7 ( 1.00x) put_chroma_hv_8_128x128_neon: 75.2 (14.07x) On Android Pixel 8 Pro: put_chroma_hv_8_4x4_c: 1.2 ( 1.00x) put_chroma_hv_8_4x4_neon: 0.0 ( 0.00x) put_chroma_hv_8_4x4_i8mm: 0.2 ( 5.00x) put_chroma_hv_8_8x8_c: 4.0 ( 1.00x) put_chroma_hv_8_8x8_neon: 0.5 ( 8.00x) put_chroma_hv_8_8x8_i8mm: 0.5 ( 8.00x) put_chroma_hv_8_16x16_c: 15.2 ( 1.00x) put_chroma_hv_8_16x16_neon: 2.5 ( 6.10x) put_chroma_hv_8_16x16_i8mm: 2.2 ( 6.78x) put_chroma_hv_8_32x32_c: 61.0 ( 1.00x) put_chroma_hv_8_32x32_neon: 9.8 ( 6.26x) put_chroma_hv_8_32x32_i8mm: 8.5 ( 7.18x) put_chroma_hv_8_64x64_c: 229.5 ( 1.00x) put_chroma_hv_8_64x64_neon: 38.5 ( 5.96x) put_chroma_hv_8_64x64_i8mm: 34.0 ( 6.75x) put_chroma_hv_8_128x128_c: 919.8 ( 1.00x) put_chroma_hv_8_128x128_neon: 154.5 ( 5.95x) put_chroma_hv_8_128x128_i8mm: 140.0 ( 6.57x)
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.