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James Almer e9cfd53257 swscale/x86/input: add AVX2 optimized RGB32 to YUV functions 
abgr_to_uv_8_c: 43.3
abgr_to_uv_8_sse2: 14.3
abgr_to_uv_8_avx: 15.3
abgr_to_uv_8_avx2: 18.8
abgr_to_uv_128_c: 650.3
abgr_to_uv_128_sse2: 110.8
abgr_to_uv_128_avx: 112.3
abgr_to_uv_128_avx2: 64.8
abgr_to_uv_1080_c: 5456.3
abgr_to_uv_1080_sse2: 888.8
abgr_to_uv_1080_avx: 900.8
abgr_to_uv_1080_avx2: 518.3
abgr_to_uv_1920_c: 9692.3
abgr_to_uv_1920_sse2: 1593.8
abgr_to_uv_1920_avx: 1613.3
abgr_to_uv_1920_avx2: 864.8
abgr_to_y_8_c: 23.3
abgr_to_y_8_sse2: 12.8
abgr_to_y_8_avx: 13.3
abgr_to_y_8_avx2: 17.3
abgr_to_y_128_c: 308.3
abgr_to_y_128_sse2: 67.3
abgr_to_y_128_avx: 66.8
abgr_to_y_128_avx2: 44.8
abgr_to_y_1080_c: 2371.3
abgr_to_y_1080_sse2: 512.8
abgr_to_y_1080_avx: 505.8
abgr_to_y_1080_avx2: 314.3
abgr_to_y_1920_c: 4177.3
abgr_to_y_1920_sse2: 915.8
abgr_to_y_1920_avx: 926.8
abgr_to_y_1920_avx2: 519.3
bgra_to_uv_8_c: 37.3
bgra_to_uv_8_sse2: 13.3
bgra_to_uv_8_avx: 14.8
bgra_to_uv_8_avx2: 19.8
bgra_to_uv_128_c: 563.8
bgra_to_uv_128_sse2: 111.3
bgra_to_uv_128_avx: 112.3
bgra_to_uv_128_avx2: 64.8
bgra_to_uv_1080_c: 4691.8
bgra_to_uv_1080_sse2: 893.8
bgra_to_uv_1080_avx: 899.8
bgra_to_uv_1080_avx2: 517.8
bgra_to_uv_1920_c: 8332.8
bgra_to_uv_1920_sse2: 1590.8
bgra_to_uv_1920_avx: 1605.8
bgra_to_uv_1920_avx2: 867.3
bgra_to_y_8_c: 22.3
bgra_to_y_8_sse2: 12.8
bgra_to_y_8_avx: 12.8
bgra_to_y_8_avx2: 17.3
bgra_to_y_128_c: 291.3
bgra_to_y_128_sse2: 67.8
bgra_to_y_128_avx: 69.3
bgra_to_y_128_avx2: 45.3
bgra_to_y_1080_c: 2357.3
bgra_to_y_1080_sse2: 508.3
bgra_to_y_1080_avx: 518.3
bgra_to_y_1080_avx2: 399.8
bgra_to_y_1920_c: 4202.8
bgra_to_y_1920_sse2: 906.8
bgra_to_y_1920_avx: 907.3
bgra_to_y_1920_avx2: 526.3

Signed-off-by: James Almer <jamrial@gmail.com>
2024-06-09 13:43:11 -03:00
compat
doc lavc: bump minor and add APIchanges entry for new USAC profile 2024-06-08 00:22:36 +02:00
ffbuild
fftools fftools/ffmpeg_mux_init: Free pts on error 2024-06-07 21:42:26 +02:00
libavcodec x86/aacencdsp: add AVX version of quantize_bands 2024-06-09 12:29:49 -03:00
libavdevice
libavfilter libavfi/dnn: enable LibTorch xpu device option support 2024-06-08 19:45:21 +08:00
libavformat avformat/evc: Fix format specifiers 2024-06-09 10:59:33 +02:00
libavutil
libpostproc
libswresample
libswscale swscale/x86/input: add AVX2 optimized RGB32 to YUV functions 2024-06-09 13:43:11 -03:00
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tests checkasm/sw_rgb: test rgb32/rgb32_1 to yuv 2024-06-09 12:29:49 -03:00
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README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides means to alter decoded audio and video through a directed graph of connected filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements 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, ismindex and qt-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.