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Ramiro Polla 58bcdeb742 swscale/aarch64/range_convert: saturate output instead of limiting input 
aarch64 A55:
chrRangeFromJpeg8_1920_c:    28836.2 (1.00x)
chrRangeFromJpeg8_1920_neon:  5312.6 (5.43x)  5313.9 (5.43x)
chrRangeToJpeg8_1920_c:      44196.2 (1.00x)
chrRangeToJpeg8_1920_neon:    6034.6 (7.32x)  5551.3 (7.96x)
lumRangeFromJpeg8_1920_c:    15388.5 (1.00x)
lumRangeFromJpeg8_1920_neon:  3150.7 (4.88x)  3152.3 (4.88x)
lumRangeToJpeg8_1920_c:      23069.7 (1.00x)
lumRangeToJpeg8_1920_neon:    3873.2 (5.96x)  3628.7 (6.36x)

aarch64 A76:
chrRangeFromJpeg8_1920_c:     6334.7 (1.00x)
chrRangeFromJpeg8_1920_neon:  2264.5 (2.80x)  2344.5 (2.70x)
chrRangeToJpeg8_1920_c:      11474.5 (1.00x)
chrRangeToJpeg8_1920_neon:    2646.5 (4.34x)  2824.2 (4.06x)
lumRangeFromJpeg8_1920_c:     4453.2 (1.00x)
lumRangeFromJpeg8_1920_neon:  1104.8 (4.03x)  1104.5 (4.03x)
lumRangeToJpeg8_1920_c:       6645.0 (1.00x)
lumRangeToJpeg8_1920_neon:    1310.5 (5.07x)  1329.8 (5.00x)
2024-12-05 21:10:29 +01:00
compat compat: Fix the fallback definition of stdc_trailing_zeros 2024-09-24 14:00:27 +03:00
doc avutil/csp: add EOTF function definitions 2024-12-05 12:27:32 +01:00
ffbuild configure: Add wasm as a fake arch 2024-12-04 16:43:06 +08:00
fftools fftools/ffmpeg_sched: signal the main thread when a task fails 2024-11-25 05:26:49 +01:00
libavcodec avcodec/hevc: Add wasm simd128 idct 2024-12-04 16:43:07 +08:00
libavdevice avdevice/dshow: fix unused variable warning 2024-10-17 13:04:17 +02:00
libavfilter avfilter/asrc_sine: increase frequency accuracy 2024-11-29 21:16:22 +01:00
libavformat avformat/mov: add support for pssh box 2024-12-05 14:22:16 -03:00
libavutil avutil/tests/color_utils: add tests for av_csp_itu_eotf 2024-12-05 12:27:33 +01:00
libpostproc */version.h: bump after release/7.1 branch 2024-09-24 17:10:35 +02:00
libswresample arm: Consistently use proper interworking function returns 2024-10-09 15:52:51 +03:00
libswscale swscale/aarch64/range_convert: saturate output instead of limiting input 2024-12-05 21:10:29 +01:00
presets
tests checkasm/sw_range_convert: test negative input values 2024-12-05 21:10:29 +01:00
tools tools/general_assembly: exclude Derek from GA emails 2024-11-28 15:51:37 +01:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore .gitignore: add exclusions for shader .c files 2024-11-18 07:54:21 +01:00
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog lavc: deprecate the omx encoders 2024-11-09 02:46:17 +01:00
configure configure: Add wasm as a fake arch 2024-12-04 16:43:06 +08:00
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: explain the circular dependency issue and solution 2024-11-03 19:35:23 +01:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: Lauri is still available but is really low on time nowadays 2024-11-28 23:19:00 +01:00
Makefile configure: Add wasm as a fake arch 2024-12-04 16:43:06 +08:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update release number after release/7.1 branch 2024-10-09 01:55:50 +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.