FFmpeg git repo
Go to file
Rémi Denis-Courmont b0b3bea10b lavc/h264dsp: use saturing add/sub for R-V V 8-bit DC add
T-Head C908 (cycles):
h264_idct4_dc_add_8bpp_c:      109.2
h264_idct4_dc_add_8bpp_rvv_i32: 34.5 (before)
h264_idct4_dc_add_8bpp_rvv_i32: 25.5 (after)
h264_idct8_dc_add_8bpp_c:      418.7
h264_idct8_dc_add_8bpp_rvv_i64: 69.5 (before)
h264_idct8_dc_add_8bpp_rvv_i64: 33.5 (after)
2024-07-28 21:24:12 +03:00
compat
doc avutil/dovi_meta: add dv_md_compression to cfg record 2024-07-28 12:20:07 +02:00
ffbuild
fftools fftools/ffprobe: implement dv_md_compression 2024-07-28 12:20:07 +02:00
libavcodec lavc/h264dsp: use saturing add/sub for R-V V 8-bit DC add 2024-07-28 21:24:12 +03:00
libavdevice avdevice/dshow: Don't skip audio devices if no video device is present 2024-07-24 14:45:20 +02:00
libavfilter lavfi/riscv: add forward-edge CFI landing pads 2024-07-25 23:10:14 +03:00
libavformat avformat/dump: implement dv_md_compression 2024-07-28 12:20:07 +02:00
libavutil avutil/dovi_meta: add dv_md_compression to cfg record 2024-07-28 12:20:07 +02:00
libpostproc
libswresample
libswscale swscale: [loongarch] Fix checkasm-sw_yuv2rgb failure. 2024-07-28 19:02:16 +02:00
presets
tests fftools/ffprobe: implement dv_md_compression 2024-07-28 12:20:07 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for RV30 2024-07-16 18:43:15 +02:00
.gitattributes
.gitignore
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog Changelog: mention cropping support in Matroska and MP4 2024-07-11 21:35:40 -03:00
configure configure: Fix Apple framework dependencies in .pc file 2024-07-16 22:50:41 +08:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add myself as d3d12va_encode maintainer 2024-07-10 18:10:08 +02:00
Makefile
README.md
RELEASE

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.