No description
39786f8cd5
int8_t[] is enough for offset_table of 8 bit streams.
On rpi5:
Before After
hevc_sao_band_8_8_c: 252.3 ( 1.00x) 252.3 ( 1.00x)
hevc_sao_band_8_8_neon: 95.8 ( 2.63x) 61.0 ( 4.57x)
hevc_sao_band_16_8_c: 875.2 ( 1.00x) 864.9 ( 1.00x)
hevc_sao_band_16_8_neon: 317.5 ( 2.76x) 150.0 ( 6.26x)
hevc_sao_band_32_8_c: 3853.5 ( 1.00x) 3871.6 ( 1.00x)
hevc_sao_band_32_8_neon: 1222.3 ( 3.15x) 550.6 ( 7.39)
hevc_sao_band_48_8_c: 8203.6 ( 1.00x) 8182.6 ( 1.00x)
hevc_sao_band_48_8_neon: 2685.7 ( 3.05x) 1185.8 ( 7.36x)
hevc_sao_band_64_8_c: 14023.0 ( 1.00x) 14038.9 ( 1.00x)
hevc_sao_band_64_8_neon: 4783.2 ( 2.93x) 2078.4 ( 7.15x)
Reviewed-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
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|---|---|---|
| compat | ||
| doc | ||
| ffbuild | ||
| fftools | ||
| libavcodec | ||
| libavdevice | ||
| libavfilter | ||
| libavformat | ||
| libavutil | ||
| libpostproc | ||
| libswresample | ||
| libswscale | ||
| presets | ||
| tests | ||
| tools | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| Changelog | ||
| configure | ||
| CONTRIBUTING.md | ||
| COPYING.GPLv2 | ||
| COPYING.GPLv3 | ||
| COPYING.LGPLv2.1 | ||
| COPYING.LGPLv3 | ||
| CREDITS | ||
| INSTALL.md | ||
| LICENSE.md | ||
| MAINTAINERS | ||
| Makefile | ||
| README.md | ||
| RELEASE | ||
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.