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Rémi Denis-Courmont 417957ec5e sws/range_convert: R-V V to/from JPEG 
C908   X60
chrRangeFromJpeg_8_c:          2.7    2.5
chrRangeFromJpeg_8_rvv_i32:    1.7    1.5
chrRangeFromJpeg_24_c:         7.5    6.7
chrRangeFromJpeg_24_rvv_i32:   1.7    1.5
chrRangeFromJpeg_128_c:       55.2   34.7
chrRangeFromJpeg_128_rvv_i32:  6.5    3.0
chrRangeFromJpeg_144_c:       44.0   39.2
chrRangeFromJpeg_144_rvv_i32:  7.7    4.5
chrRangeFromJpeg_256_c:       78.2   69.5
chrRangeFromJpeg_256_rvv_i32: 12.2    6.0
chrRangeFromJpeg_512_c:      172.2  138.5
chrRangeFromJpeg_512_rvv_i32: 24.5   11.7
chrRangeToJpeg_8_c:            4.7    4.2
chrRangeToJpeg_8_rvv_i32:      2.0    1.7
chrRangeToJpeg_24_c:          13.7   12.2
chrRangeToJpeg_24_rvv_i32:     2.0    1.5
chrRangeToJpeg_128_c:         72.0   63.7
chrRangeToJpeg_128_rvv_i32:    6.7    3.2
chrRangeToJpeg_144_c:         80.7   71.7
chrRangeToJpeg_144_rvv_i32:    8.5    4.7
chrRangeToJpeg_256_c:        143.2  127.2
chrRangeToJpeg_256_rvv_i32:   13.5    6.5
chrRangeToJpeg_512_c:        285.7  253.7
chrRangeToJpeg_512_rvv_i32:   27.0   13.0
lumRangeFromJpeg_8_c:          1.7    1.5
lumRangeFromJpeg_8_rvv_i32:    1.2    1.0
lumRangeFromJpeg_24_c:         4.2    3.7
lumRangeFromJpeg_24_rvv_i32:   1.2    1.0
lumRangeFromJpeg_128_c:       21.7   19.2
lumRangeFromJpeg_128_rvv_i32:  3.7    1.7
lumRangeFromJpeg_144_c:       24.7   22.0
lumRangeFromJpeg_144_rvv_i32:  4.7    2.7
lumRangeFromJpeg_256_c:       43.7   39.0
lumRangeFromJpeg_256_rvv_i32:  7.5    3.2
lumRangeFromJpeg_512_c:       87.0   77.2
lumRangeFromJpeg_512_rvv_i32: 14.5    6.7
lumRangeToJpeg_8_c:            2.7    2.2
lumRangeToJpeg_8_rvv_i32:      1.0    1.0
lumRangeToJpeg_24_c:           7.2    6.5
lumRangeToJpeg_24_rvv_i32:     1.2    1.0
lumRangeToJpeg_128_c:         37.7   33.7
lumRangeToJpeg_128_rvv_i32:    3.7    2.0
lumRangeToJpeg_144_c:         42.5   37.7
lumRangeToJpeg_144_rvv_i32:    4.7    2.7
lumRangeToJpeg_256_c:         75.0   66.7
lumRangeToJpeg_256_rvv_i32:    7.5    3.5
lumRangeToJpeg_512_c:        149.5  133.0
lumRangeToJpeg_512_rvv_i32:   14.7    7.0
2024-06-10 22:48:52 +03:00
compat avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
doc lavc: bump minor and add APIchanges entry for new USAC profile 2024-06-08 00:22:36 +02:00
ffbuild riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
fftools fftools/ffmpeg_mux_init: Free pts on error 2024-06-07 21:42:26 +02:00
libavcodec x86/aacencdsp: fix ff_aac_quantize_bands_avx on unix64 ABI 2024-06-09 17:16:02 -03:00
libavdevice avdevice/pulse_audio_enc: Use av_rescale() to avoid integer overflow 2024-06-01 18:01:05 +02:00
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 avutil/timer: Add clock_gettime as a fallback of AV_READ_TIME 2024-06-11 01:11:36 +08:00
libpostproc avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswresample avutil/common: Don't auto-include mem.h 2024-03-31 00:08:43 +01:00
libswscale sws/range_convert: R-V V to/from JPEG 2024-06-10 22:48:52 +03:00
presets
tests tests/checkasm: Fix build error when enable linux perf on Android 2024-06-11 01:11:46 +08:00
tools tools/decode_simple: Check avcodec_send_packet() for errors on flushing 2024-05-28 03:48:06 +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: Update my mailmap entry 2024-02-23 00:17:21 +01:00
Changelog changelog: add entry for xHE-AAC 2024-06-02 18:34:46 +02:00
configure configure: correct libopenjpeg description 2024-05-31 21:20:28 +05:30
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 myself as *BSD maintainer 2024-05-13 03:40:16 +02:00
Makefile riscv: add Zvbb vector bit manipulation extension 2024-05-11 11:38:49 +03:00
README.md
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.