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Rémi Denis-Courmont 446b0090cb lavu/float_dsp: avoid reg-stride in R-V V reverse_fmul
This revectors the inner loop to reverse vectors element in vectors,
thus eliminating the negative register stride. Note that RVV does not
have a vector reverse instruction, so this uses a gather.
2023-10-03 20:48:47 +03:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
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libavfilter lavfi/yadif: update output frame durations 2023-10-03 16:57:02 +02:00
libavformat lavf/gifdec: do not mark as notimestamps 2023-10-03 16:57:02 +02:00
libavutil lavu/float_dsp: avoid reg-stride in R-V V reverse_fmul 2023-10-03 20:48:47 +03:00
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tests fftools/ffmpeg_enc: do not round frame durations prematurely 2023-10-03 16:57:02 +02:00
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Changelog lavc/vaapi_encode: Add VAAPI AV1 encoder 2023-09-22 13:15:00 +08:00
configure avcodec: Remove DCT, FFT, MDCT and RDFT 2023-10-01 02:25:09 +02:00
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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.