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Diederick Niehorster 7b21841ce4 avdevice/dshow: prevent NULL access 
list_options true would crash when both a video and an audio device were
specified as input. Crash would occur on line 784 because
ctx->device_unique_name[otherDevType] would be NULL

Signed-off-by: Diederick Niehorster <dcnieho@gmail.com>
Reviewed-by: Roger Pack <rogerdpack2@gmail.com>
2021-12-24 14:04:14 +05:30
compat Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
doc lavu/videotoolbox: expose routine to set CVPixelBufferRef metadata 2021-12-22 18:43:17 -06:00
ffbuild build: simplify rules for metal 2021-12-20 12:05:39 -08:00
fftools fftools/ffmpeg_filter: Avoid inserting hflip filter 2021-12-23 18:09:46 +01:00
libavcodec avcodec/h2645: Fix SEI->display matrix transformation 2021-12-23 18:09:46 +01:00
libavdevice avdevice/dshow: prevent NULL access 2021-12-24 14:04:14 +05:30
libavfilter lavfi/metal: fix build with pre-10.11 deployment targets 2021-12-22 18:43:34 -06:00
libavformat libavformat: add side_data copy in concat demuxer 2021-12-22 12:05:41 +01:00
libavutil libavutil/hwcontext_qsv: clean padding when upload qsv frames 2021-12-23 15:49:07 +08:00
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.