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Lynne b84ce56589 hwcontext_vulkan: remove VK_EXT_hdr_metadata from autoloaded extensions list 
We don't use it. Was copied from libplacebo's recommended defaults.
Creates problems with validation on Intel devices, where the driver
still advertizes it, even though it's not usable without a swapchain.
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compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc lavc/{av1, h264, h265}_metadata_bsf: fix description of tick_rate 2022-01-01 10:43:17 +08:00
ffbuild build: simplify rules for metal 2021-12-20 12:05:39 -08:00
fftools fftools: provide media type info for devices 2021-12-24 14:06:56 +05:30
libavcodec avcodec/speexdec: Consider mode in frame size check 2022-01-01 19:30:04 +01:00
libavdevice avdevice/dshow: don't mix declarations and code 2021-12-24 14:24:07 -03:00
libavfilter avfilter: add anlmf filter 2021-12-25 11:32:41 +01:00
libavformat avformat/Makefile: add imf.h to SKIPHEADERS 2021-12-31 19:22:47 -03:00
libavutil hwcontext_vulkan: remove VK_EXT_hdr_metadata from autoloaded extensions list 2022-01-03 03:16:45 +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 swscale/x86/init: use isSemiPlanarYUV 2021-12-23 01:41:03 -06:00
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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.