378fb40282
Today, cuda is not able to import multiplane images, and cuda requires images to be imported whether you trying to import to cuda or export from cuda (in the later case, the image is imported and then copied into on the cuda side). So any interop between cuda and vulkan requires that multiplane be disabled. The existing option for this is not sufficient, because when deriving devices it is not possible to specify any options. And, it is necessary to derive the Vulkan device, because any pipeline that involves uploading from cuda to vulkan and then back to cuda must use the same cuda context on both sides, and the only way to propagate the cuda context all the way through is to derive the device at each stage. ie: -vf hwupload=derive_device=vulkan,<filters>,hwupload=derive_device=cuda
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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.