You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
Wenbin Chen a3c0a3ec60 libavcodec/qsvenc: Let runtime to set default parameter. 2 years ago
compat compat/cuda: switch from powf to __powf intrinsic 2 years ago
doc libavcodec/qsvenc: Add pic_timing_sei reset support to qsv 2 years ago
ffbuild configure: probe RISC-V Vector extension 2 years ago
fftools ffprobe: Check for invalid matrix error when printing rotation 2 years ago
libavcodec libavcodec/qsvenc: Let runtime to set default parameter. 2 years ago
libavdevice avformat/internal: Don't include avcodec.h 2 years ago
libavfilter avfilter/vf_extractplanes: add missing break; statement 2 years ago
libavformat format/imfdec: improve error handling when selecting tracks for playback 2 years ago
libavutil avutil/display: Drop wrong comments about matrices being allocated 2 years ago
libpostproc configure: always enable gnu_windres if available 2 years ago
libswresample swsresample/swresample: error out on invalid layouts 2 years ago
libswscale swscale/output: Don't call av_pix_fmt_desc_get() in a loop 2 years ago
presets
tests lavu/cpu: CPU flags for the RISC-V Vector extension 2 years ago
tools tools/target_dec_fuzzer: Adjust threshold for Jpeg2000 2 years ago
.gitattributes fate: add SCC test 8 years ago
.gitignore gitignore: add config_components.h 3 years ago
.mailmap mailmap: add entry for myself 4 years ago
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 6 years ago
CONTRIBUTING.md Add CONTRIBUTING.md 8 years ago
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
Changelog avformat: add APAC demuxer 2 years ago
INSTALL.md INSTALL.md: Fix Markdown formatting 6 years ago
LICENSE.md avfilter/vf_geq: Relicense to LGPL 5 years ago
MAINTAINERS MAINTAINERS: remove the project leader section 2 years ago
Makefile configure: probe RISC-V Vector extension 2 years ago
README.md README: fix typo and description of libavfilter 3 years ago
RELEASE RELEASE: update after 5.1 branch 2 years ago
configure configure: remove mdct15 from the encoder/decoder's list of requirements 2 years ago

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.