1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-04-02 20:35:37 +02:00
Niklas Haas c65e481330 lavfi/vf_libplacebo: allow operation without avhwdevice
Recent versions of libplacebo have required Vulkan versions incompatible
with lavu Vulkan hwcontexts. While this is expected to change
eventually, breaking vf_libplacebo every time there is such a transition
period is obviously undesired behavior, as the following sea of bug
reports shows.

This commit adds a fallback path for init_vulkan failures which simply
creates an internal device if there was no user-supplied Vulkan hwaccel.
Useful when no interop with lavu vulkan hwframes is needed or desired,
and makes using this filter easier inside certain applications.

Fixes: https://github.com/haasn/libplacebo/issues/170
Fixes: https://github.com/mpv-player/mpv/issues/9589#issuecomment-1535432185
Fixes: https://github.com/mpv-player/mpv/issues/11363
Fixes: https://github.com/mpv-player/mpv/issues/11685#issuecomment-1546627082
Closes: https://code.videolan.org/videolan/libplacebo/-/issues/270
2023-05-13 17:38:20 +02:00
2017-01-27 17:06:42 +01:00
2022-03-17 18:35:41 -03:00
2016-09-18 10:02:13 +01:00
2023-03-01 21:59:10 +01:00
2019-01-31 10:29:16 -09:00
2019-12-28 11:20:48 +01:00
2022-07-13 00:31:42 +02:00

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.

Languages
C 90.3%
Assembly 7.8%
Makefile 1.3%
C++ 0.2%
Objective-C 0.1%
Other 0.1%