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Lynne 14b6805eb2
configure: improve non-pkgconfig Vulkan version check
Check for the patch version as well as the major+minor version.

The VK_API_VERSION macros are not usable in preprocessor code due
to casts.
The patch (header) version is meant to linearly increment and
not be reset, however it's better to trust, but verify.
2021-12-21 15:28:50 +01:00
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc avutil/display: fix inverted doc 2021-12-20 21:29:42 +01:00
ffbuild build: simplify rules for metal 2021-12-20 12:05:39 -08:00
fftools fftools/cmdutils: Avoid crash when opts could not be allocated 2021-12-16 11:56:00 +01:00
libavcodec avcodec/libx264: Don't unnecessarily add in-band extradata 2021-12-21 08:35:05 +01:00
libavdevice lavd/v4l2: detect device name truncation 2021-12-07 11:16:14 +01:00
libavfilter tests/dnn: Make DNN tests regular libavfilter tests 2021-12-19 00:46:29 +01:00
libavformat avformat/mvdec: explicitly set duration 2021-12-21 12:01:22 +11:00
libavutil avutil/display: fix inverted doc 2021-12-20 21:29:42 +01:00
libpostproc libpostproc/postprocess_template: Don't reimplement FFSWAP 2021-10-02 17:13:42 +02:00
libswresample libswresample/swresamplec: Err num(negative-size) was used as a function parameter 2021-12-09 13:12:45 +01:00
libswscale x86/scale_avx2: don't use $ for hex literals 2021-12-16 17:29:21 -03:00
presets
tests checkasm: Use the correct AVTXContext in av_tx tests 2021-12-20 23:58:05 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for prores 2021-12-16 21:06:47 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore build: detect Metal.framework and build .metal files 2021-12-18 11:55:47 -08:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml Merge commit '899ee03088' 2019-03-14 15:53:16 -03:00
Changelog avfilter: add vf_yadif_videotoolbox 2021-12-18 11:57:31 -08:00
configure configure: improve non-pkgconfig Vulkan version check 2021-12-21 15:28:50 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md INSTALL.md: Fix Markdown formatting 2019-01-31 10:29:16 -09:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: Add Haihao Xiang for vaapi 2021-12-20 14:31:57 -08:00
Makefile build: add .metal to vpath to fix build error 2021-12-20 12:05:07 -08:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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.