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sunyuechi ba7d0d5fc3 lavc/vvc_mc: R-V V avg w_avg C908 X60 avg_8_2x2_c : 1.2 1.0 avg_8_2x2_rvv_i32 : 0.7 0.7 avg_8_2x4_c : 2.0 2.2 avg_8_2x4_rvv_i32 : 1.2 1.2 avg_8_2x8_c : 3.7 4.0 avg_8_2x8_rvv_i32 : 1.7 1.5 avg_8_2x16_c : 7.2 7.7 avg_8_2x16_rvv_i32 : 3.0 2.7 avg_8_2x32_c : 14.2 15.2 avg_8_2x32_rvv_i32 : 5.5 5.0 avg_8_2x64_c : 51.0 43.7 avg_8_2x64_rvv_i32 : 39.2 29.7 avg_8_2x128_c : 100.5 79.2 avg_8_2x128_rvv_i32 : 79.7 68.2 avg_8_4x2_c : 1.7 2.0 avg_8_4x2_rvv_i32 : 1.0 0.7 avg_8_4x4_c : 3.5 3.7 avg_8_4x4_rvv_i32 : 1.2 1.2 avg_8_4x8_c : 6.7 7.0 avg_8_4x8_rvv_i32 : 1.7 1.5 avg_8_4x16_c : 13.5 14.0 avg_8_4x16_rvv_i32 : 3.0 2.7 avg_8_4x32_c : 26.2 27.7 avg_8_4x32_rvv_i32 : 5.5 4.7 avg_8_4x64_c : 73.0 73.7 avg_8_4x64_rvv_i32 : 39.0 32.5 avg_8_4x128_c : 143.0 137.2 avg_8_4x128_rvv_i32 : 72.7 68.0 avg_8_8x2_c : 3.5 3.5 avg_8_8x2_rvv_i32 : 1.0 0.7 avg_8_8x4_c : 6.2 6.5 avg_8_8x4_rvv_i32 : 1.5 1.0 avg_8_8x8_c : 12.7 13.2 avg_8_8x8_rvv_i32 : 2.0 1.5 avg_8_8x16_c : 25.0 26.5 avg_8_8x16_rvv_i32 : 3.2 2.7 avg_8_8x32_c : 50.0 52.7 avg_8_8x32_rvv_i32 : 6.2 5.0 avg_8_8x64_c : 118.7 122.5 avg_8_8x64_rvv_i32 : 40.2 31.5 avg_8_8x128_c : 236.7 220.2 avg_8_8x128_rvv_i32 : 85.2 67.7 avg_8_16x2_c : 6.2 6.7 avg_8_16x2_rvv_i32 : 1.2 0.7 avg_8_16x4_c : 12.5 13.0 avg_8_16x4_rvv_i32 : 1.7 1.0 avg_8_16x8_c : 24.5 26.0 avg_8_16x8_rvv_i32 : 3.0 1.7 avg_8_16x16_c : 49.0 51.5 avg_8_16x16_rvv_i32 : 5.5 3.0 avg_8_16x32_c : 97.5 102.5 avg_8_16x32_rvv_i32 : 10.5 5.5 avg_8_16x64_c : 213.7 222.0 avg_8_16x64_rvv_i32 : 48.5 34.2 avg_8_16x128_c : 434.7 420.0 avg_8_16x128_rvv_i32 : 97.7 74.0 avg_8_32x2_c : 12.2 12.7 avg_8_32x2_rvv_i32 : 1.5 1.0 avg_8_32x4_c : 24.5 25.5 avg_8_32x4_rvv_i32 : 3.0 1.7 avg_8_32x8_c : 48.5 50.7 avg_8_32x8_rvv_i32 : 5.2 2.7 avg_8_32x16_c : 96.7 101.2 avg_8_32x16_rvv_i32 : 10.2 5.0 avg_8_32x32_c : 192.7 202.2 avg_8_32x32_rvv_i32 : 19.7 9.5 avg_8_32x64_c : 427.5 426.5 avg_8_32x64_rvv_i32 : 64.2 18.2 avg_8_32x128_c : 816.5 821.0 avg_8_32x128_rvv_i32 : 135.2 75.5 avg_8_64x2_c : 24.0 25.2 avg_8_64x2_rvv_i32 : 2.7 1.5 avg_8_64x4_c : 48.2 50.5 avg_8_64x4_rvv_i32 : 5.0 2.7 avg_8_64x8_c : 96.0 100.7 avg_8_64x8_rvv_i32 : 9.7 4.5 avg_8_64x16_c : 207.7 201.2 avg_8_64x16_rvv_i32 : 19.0 9.0 avg_8_64x32_c : 383.2 402.0 avg_8_64x32_rvv_i32 : 37.5 17.5 avg_8_64x64_c : 837.2 828.7 avg_8_64x64_rvv_i32 : 84.7 35.5 avg_8_64x128_c : 1640.7 1640.2 avg_8_64x128_rvv_i32 : 206.0 153.0 avg_8_128x2_c : 48.7 51.0 avg_8_128x2_rvv_i32 : 5.2 2.7 avg_8_128x4_c : 96.7 101.5 avg_8_128x4_rvv_i32 : 10.2 5.0 avg_8_128x8_c : 192.2 202.0 avg_8_128x8_rvv_i32 : 19.7 9.2 avg_8_128x16_c : 400.7 403.2 avg_8_128x16_rvv_i32 : 38.7 18.5 avg_8_128x32_c : 786.7 805.7 avg_8_128x32_rvv_i32 : 77.0 36.2 avg_8_128x64_c : 1615.5 1655.5 avg_8_128x64_rvv_i32 : 189.7 80.7 avg_8_128x128_c : 3182.0 3238.0 avg_8_128x128_rvv_i32 : 397.5 308.5 w_avg_8_2x2_c : 1.7 1.2 w_avg_8_2x2_rvv_i32 : 1.2 1.0 w_avg_8_2x4_c : 2.7 2.7 w_avg_8_2x4_rvv_i32 : 1.7 1.5 w_avg_8_2x8_c : 21.7 4.7 w_avg_8_2x8_rvv_i32 : 2.7 2.5 w_avg_8_2x16_c : 9.5 9.2 w_avg_8_2x16_rvv_i32 : 4.7 4.2 w_avg_8_2x32_c : 19.0 18.7 w_avg_8_2x32_rvv_i32 : 9.0 8.0 w_avg_8_2x64_c : 62.0 50.2 w_avg_8_2x64_rvv_i32 : 47.7 33.5 w_avg_8_2x128_c : 116.7 87.7 w_avg_8_2x128_rvv_i32 : 80.0 69.5 w_avg_8_4x2_c : 2.5 2.5 w_avg_8_4x2_rvv_i32 : 1.2 1.0 w_avg_8_4x4_c : 4.7 4.5 w_avg_8_4x4_rvv_i32 : 1.7 1.7 w_avg_8_4x8_c : 9.0 8.7 w_avg_8_4x8_rvv_i32 : 2.7 2.5 w_avg_8_4x16_c : 17.7 17.5 w_avg_8_4x16_rvv_i32 : 4.7 4.2 w_avg_8_4x32_c : 35.0 35.0 w_avg_8_4x32_rvv_i32 : 9.0 8.0 w_avg_8_4x64_c : 100.5 84.5 w_avg_8_4x64_rvv_i32 : 42.2 33.7 w_avg_8_4x128_c : 203.5 151.2 w_avg_8_4x128_rvv_i32 : 83.0 69.5 w_avg_8_8x2_c : 4.5 4.5 w_avg_8_8x2_rvv_i32 : 1.2 1.2 w_avg_8_8x4_c : 8.7 8.7 w_avg_8_8x4_rvv_i32 : 2.0 1.7 w_avg_8_8x8_c : 17.0 17.0 w_avg_8_8x8_rvv_i32 : 3.2 2.5 w_avg_8_8x16_c : 34.0 33.5 w_avg_8_8x16_rvv_i32 : 5.5 4.2 w_avg_8_8x32_c : 86.0 67.5 w_avg_8_8x32_rvv_i32 : 10.5 8.0 w_avg_8_8x64_c : 187.2 149.5 w_avg_8_8x64_rvv_i32 : 45.0 35.5 w_avg_8_8x128_c : 342.7 290.0 w_avg_8_8x128_rvv_i32 : 108.7 70.2 w_avg_8_16x2_c : 8.5 8.2 w_avg_8_16x2_rvv_i32 : 2.0 1.2 w_avg_8_16x4_c : 16.7 16.7 w_avg_8_16x4_rvv_i32 : 3.0 1.7 w_avg_8_16x8_c : 33.2 33.5 w_avg_8_16x8_rvv_i32 : 5.5 3.0 w_avg_8_16x16_c : 66.2 66.7 w_avg_8_16x16_rvv_i32 : 10.5 5.0 w_avg_8_16x32_c : 132.5 131.0 w_avg_8_16x32_rvv_i32 : 20.0 9.7 w_avg_8_16x64_c : 340.0 283.5 w_avg_8_16x64_rvv_i32 : 60.5 37.2 w_avg_8_16x128_c : 641.2 597.5 w_avg_8_16x128_rvv_i32 : 118.7 77.7 w_avg_8_32x2_c : 16.5 16.7 w_avg_8_32x2_rvv_i32 : 3.2 1.7 w_avg_8_32x4_c : 33.2 33.2 w_avg_8_32x4_rvv_i32 : 5.5 2.7 w_avg_8_32x8_c : 66.0 62.5 w_avg_8_32x8_rvv_i32 : 10.5 5.0 w_avg_8_32x16_c : 131.5 132.0 w_avg_8_32x16_rvv_i32 : 20.2 9.5 w_avg_8_32x32_c : 261.7 272.0 w_avg_8_32x32_rvv_i32 : 39.7 18.0 w_avg_8_32x64_c : 575.2 545.5 w_avg_8_32x64_rvv_i32 : 105.5 58.7 w_avg_8_32x128_c : 1154.2 1088.0 w_avg_8_32x128_rvv_i32 : 207.0 98.0 w_avg_8_64x2_c : 33.0 33.0 w_avg_8_64x2_rvv_i32 : 6.2 2.7 w_avg_8_64x4_c : 65.5 66.0 w_avg_8_64x4_rvv_i32 : 11.5 5.0 w_avg_8_64x8_c : 131.2 132.5 w_avg_8_64x8_rvv_i32 : 22.5 9.5 w_avg_8_64x16_c : 268.2 262.5 w_avg_8_64x16_rvv_i32 : 44.2 18.0 w_avg_8_64x32_c : 561.5 528.7 w_avg_8_64x32_rvv_i32 : 88.0 35.2 w_avg_8_64x64_c : 1136.2 1124.0 w_avg_8_64x64_rvv_i32 : 222.0 82.2 w_avg_8_64x128_c : 2345.0 2312.7 w_avg_8_64x128_rvv_i32 : 423.0 190.5 w_avg_8_128x2_c : 65.7 66.5 w_avg_8_128x2_rvv_i32 : 11.2 5.5 w_avg_8_128x4_c : 131.2 132.2 w_avg_8_128x4_rvv_i32 : 22.0 10.2 w_avg_8_128x8_c : 263.5 312.0 w_avg_8_128x8_rvv_i32 : 43.2 19.7 w_avg_8_128x16_c : 528.7 526.2 w_avg_8_128x16_rvv_i32 : 85.5 39.5 w_avg_8_128x32_c : 1067.7 1062.7 w_avg_8_128x32_rvv_i32 : 171.7 78.2 w_avg_8_128x64_c : 2234.7 2168.7 w_avg_8_128x64_rvv_i32 : 400.0 159.0 w_avg_8_128x128_c : 4752.5 4295.0 w_avg_8_128x128_rvv_i32 : 757.7 365.5 Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>		6 months ago
compat	compat: Fix the fallback definition of stdc_trailing_zeros	6 months ago
doc	doc/APIchanges: Add 7.1 Cut line	6 months ago
ffbuild	riscv: add Zvbb vector bit manipulation extension	10 months ago
fftools	fftools/ffmpeg: add support for multiview video	6 months ago
libavcodec	lavc/vvc_mc: R-V V avg w_avg	6 months ago
libavdevice	*/version.h: bump after release/7.1 branch	6 months ago
libavfilter	*/version.h: bump after release/7.1 branch	6 months ago
libavformat	*/version.h: bump after release/7.1 branch	6 months ago
libavutil	*/version.h: bump after release/7.1 branch	6 months ago
libpostproc	*/version.h: bump after release/7.1 branch	6 months ago
libswresample	*/version.h: bump after release/7.1 branch	6 months ago
libswscale	*/version.h: bump after release/7.1 branch	6 months ago
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tools	tools/target_swr_fuzzer: Limit the number of samples	6 months ago
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LICENSE.md	avfilter/vf_geq: Relicense to LGPL	5 years ago
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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.