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Haihao Xiang 7a856588dc lavfi/qsvvpp: provide a default framerate if needed 
VPP in the SDK requires the frame rate to be set to a valid value,
otherwise init will fail, so always set a default framerate when the
input link doesn't have a valid framerate.

Reviewed-by: Soft Works <softworkz@hotmail.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
 		2022-12-01 09:40:31 +08:00
compat
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doc avfilter/avf_showcwt: add yet another mode variant 2022-11-30 20:08:18 +01:00
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libavdevice avdevice/avfoundation: convert to new channel layout-API 2022-11-08 14:08:05 -03:00
libavfilter lavfi/qsvvpp: provide a default framerate if needed 2022-12-01 09:40:31 +08:00
libavformat avformat/mov: Set duration to zero if the duration is UINT_MAX 2022-11-29 08:39:32 -03:00
libavutil avutil/tx: Use unsigned in ff_tx_fft_sr_combine() to avoid undefined behavior 2022-11-28 20:58:05 +01:00
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Changelog avfilter: add showcwt multimedia filter 2022-11-28 23:18:03 +01:00
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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.