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Logan Lyu 55f28eb627 lavc/aarch64: new optimization for 8-bit hevc_qpel_hv 
checkasm bench:
put_hevc_qpel_hv4_8_c: 422.1
put_hevc_qpel_hv4_8_i8mm: 101.6
put_hevc_qpel_hv6_8_c: 756.4
put_hevc_qpel_hv6_8_i8mm: 225.9
put_hevc_qpel_hv8_8_c: 1189.9
put_hevc_qpel_hv8_8_i8mm: 296.6
put_hevc_qpel_hv12_8_c: 2407.4
put_hevc_qpel_hv12_8_i8mm: 552.4
put_hevc_qpel_hv16_8_c: 4021.4
put_hevc_qpel_hv16_8_i8mm: 886.6
put_hevc_qpel_hv24_8_c: 8992.1
put_hevc_qpel_hv24_8_i8mm: 1968.9
put_hevc_qpel_hv32_8_c: 15197.9
put_hevc_qpel_hv32_8_i8mm: 3209.4
put_hevc_qpel_hv48_8_c: 32811.1
put_hevc_qpel_hv48_8_i8mm: 7442.1
put_hevc_qpel_hv64_8_c: 58106.1
put_hevc_qpel_hv64_8_i8mm: 12423.9

Co-Authored-By: J. Dekker <jdek@itanimul.li>
Signed-off-by: Martin Storsjö <martin@martin.st>
2023-10-31 14:14:21 +02:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc doc/filters: add one more example for feedback filter 2023-10-30 15:12:12 +01:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools ffprobe: print the non-diegetic stream disposition flag 2023-10-25 21:55:01 -03:00
libavcodec lavc/aarch64: new optimization for 8-bit hevc_qpel_hv 2023-10-31 14:14:21 +02:00
libavdevice Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libavfilter avfilter/vf_feedback: add timeline support 2023-10-30 16:06:46 +01:00
libavformat Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libavutil aarch64: Simplify the linux runtime cpu detection code 2023-10-31 12:23:27 +02:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswscale Bump versions after 6.1 2023-10-29 16:19:14 +01:00
presets
tests avutil/channel_layout: add a 3.1.2 channel layout 2023-10-27 08:46:34 -03:00
tools tools/target_dec_fuzzer: Adjust wmapro threshold 2023-10-03 20:09:27 +02:00
.gitattributes
.gitignore
.mailmap mailmap: stop git lying about who I commit things as 2022-11-04 19:37:46 +01:00
.travis.yml
Changelog Changelog: mark 6.1 2023-10-29 12:55:37 -03:00
configure configure: Improve aarch64 feature detection on older, broken Clang versions 2023-10-31 12:23:31 +02:00
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
LICENSE.md
MAINTAINERS MAINTAINERS: add entry for jpegxl* 2023-10-17 08:44:23 -04:00
Makefile tools: Don't include the direct library names when linking 2023-10-02 22:49:07 +03:00
README.md
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00

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.