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Zhao Zhili 5ac6925803 aarch64/vvc: Add put_qpel_hv 
With Apple M1 (no i8mm):

put_luma_hv_8_4x4_c:                                     2.2 ( 1.00x)
put_luma_hv_8_4x4_neon:                                  0.8 ( 3.00x)
put_luma_hv_8_8x8_c:                                     7.0 ( 1.00x)
put_luma_hv_8_8x8_neon:                                  0.8 ( 9.33x)
put_luma_hv_8_16x16_c:                                  22.8 ( 1.00x)
put_luma_hv_8_16x16_neon:                                2.5 ( 9.10x)
put_luma_hv_8_32x32_c:                                  84.8 ( 1.00x)
put_luma_hv_8_32x32_neon:                                9.5 ( 8.92x)
put_luma_hv_8_64x64_c:                                 333.0 ( 1.00x)
put_luma_hv_8_64x64_neon:                               35.5 ( 9.38x)
put_luma_hv_8_128x128_c:                              1294.5 ( 1.00x)
put_luma_hv_8_128x128_neon:                            137.8 ( 9.40x)

With Pixel 8 Pro:

put_luma_hv_8_4x4_c:                                     5.0 ( 1.00x)
put_luma_hv_8_4x4_neon:                                  0.8 ( 6.67x)
put_luma_hv_8_4x4_i8mm:                                  0.2 (20.00x)
put_luma_hv_8_8x8_c:                                    13.2 ( 1.00x)
put_luma_hv_8_8x8_neon:                                  1.2 (10.60x)
put_luma_hv_8_8x8_i8mm:                                  1.2 (10.60x)
put_luma_hv_8_16x16_c:                                  44.2 ( 1.00x)
put_luma_hv_8_16x16_neon:                                4.5 ( 9.83x)
put_luma_hv_8_16x16_i8mm:                                4.2 (10.41x)
put_luma_hv_8_32x32_c:                                 160.8 ( 1.00x)
put_luma_hv_8_32x32_neon:                               17.5 ( 9.19x)
put_luma_hv_8_32x32_i8mm:                               16.0 (10.05x)
put_luma_hv_8_64x64_c:                                 611.2 ( 1.00x)
put_luma_hv_8_64x64_neon:                               68.0 ( 8.99x)
put_luma_hv_8_64x64_i8mm:                               62.2 ( 9.82x)
put_luma_hv_8_128x128_c:                              2384.8 ( 1.00x)
put_luma_hv_8_128x128_neon:                            268.8 ( 8.87x)
put_luma_hv_8_128x128_i8mm:                            245.8 ( 9.70x)
2024-09-14 16:36:34 +08:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc avdevice/decklink_dec: extend available actions on signal loss 2024-09-09 23:47:49 +02:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_demux: narrow variable scope 2024-09-13 19:41:23 +02:00
libavcodec aarch64/vvc: Add put_qpel_hv 2024-09-14 16:36:34 +08:00
libavdevice avdevice/jack: use av_err2str to simplify code 2024-09-13 00:30:48 +02:00
libavfilter lavfi/af_channelmap: fix channelmap_init error handling 2024-09-13 19:12:58 +02:00
libavformat avformat/dashdec: The segments in dash file doesn't read completely when segment's size and duration is very small. 2024-09-14 11:42:09 +08:00
libavutil avutil/file: use av_err2str to simplify code 2024-09-13 00:29:10 +02:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample swresample/swresample: Rectify invalid function in the documentation 2024-07-02 21:57:17 +02:00
libswscale swscale/aarch64/rgb2rgb: add neon implementation for rgb24toyv12 2024-09-06 23:11:13 +02:00
presets
tests tests/fate/hevc: add a periodic intra refresh decode test 2024-09-13 12:10:11 +02:00
tools tools/target_swr_fuzzer: Check av_samples_fill_arrays() for failure 2024-08-28 16:27:55 +02:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog Changelog: elaborate on what YUVJ is 2024-09-13 11:56:53 +02:00
configure aarch64: Implement support for elf_aux_info(3) on FreeBSD and OpenBSD 2024-09-09 07:17:49 -04:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: remove Aurelien and David from matroska* 2024-09-08 17:51:39 +02:00
Makefile add tools/target_swr_fuzzer 2024-08-08 15:26:52 +02:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update after 7.0 branch 2024-04-02 13:02:39 -03:00

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.