mirror of
https://mirror.skon.top/https://github.com/FFmpeg/FFmpeg
synced 2026-04-20 21:00:41 +08:00
2570f5d307
Instead convert the integers to floats and inspect the exponent. Old benchmarks: apply_bdof_8_8x16_c: 3295.2 ( 1.00x) apply_bdof_8_8x16_avx2: 312.7 (10.54x) apply_bdof_8_16x8_c: 3269.1 ( 1.00x) apply_bdof_8_16x8_avx2: 203.6 (16.05x) apply_bdof_8_16x16_c: 6584.8 ( 1.00x) apply_bdof_8_16x16_avx2: 413.6 (15.92x) apply_bdof_10_8x16_c: 3313.9 ( 1.00x) apply_bdof_10_8x16_avx2: 321.5 (10.31x) apply_bdof_10_16x8_c: 3306.5 ( 1.00x) apply_bdof_10_16x8_avx2: 200.4 (16.50x) apply_bdof_10_16x16_c: 6659.7 ( 1.00x) apply_bdof_10_16x16_avx2: 402.4 (16.55x) apply_bdof_12_8x16_c: 3305.7 ( 1.00x) apply_bdof_12_8x16_avx2: 321.8 (10.27x) apply_bdof_12_16x8_c: 3258.1 ( 1.00x) apply_bdof_12_16x8_avx2: 198.6 (16.41x) apply_bdof_12_16x16_c: 6600.2 ( 1.00x) apply_bdof_12_16x16_avx2: 392.6 (16.81x) New benchmarks: apply_bdof_8_8x16_c: 3269.9 ( 1.00x) apply_bdof_8_8x16_avx2: 266.5 (12.27x) apply_bdof_8_16x8_c: 3252.9 ( 1.00x) apply_bdof_8_16x8_avx2: 182.6 (17.81x) apply_bdof_8_16x16_c: 6596.7 ( 1.00x) apply_bdof_8_16x16_avx2: 362.7 (18.19x) apply_bdof_10_8x16_c: 3351.3 ( 1.00x) apply_bdof_10_8x16_avx2: 269.0 (12.46x) apply_bdof_10_16x8_c: 3329.1 ( 1.00x) apply_bdof_10_16x8_avx2: 174.5 (19.08x) apply_bdof_10_16x16_c: 6654.3 ( 1.00x) apply_bdof_10_16x16_avx2: 357.8 (18.60x) apply_bdof_12_8x16_c: 3274.1 ( 1.00x) apply_bdof_12_8x16_avx2: 276.0 (11.86x) apply_bdof_12_16x8_c: 3263.5 ( 1.00x) apply_bdof_12_16x8_avx2: 176.8 (18.46x) apply_bdof_12_16x16_c: 6576.4 ( 1.00x) apply_bdof_12_16x16_avx2: 357.8 (18.38x) 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.