ffmpeg Vulkan Video API/decoder and CUDA

[bhack]

Is it possible to use FFMPEG Vulkan decoder and then access with cuda using PyAV?

[WyattBlue]

Currently, no. Historically we haven't supported any hwaccels. I think we will add hwaccel support in the future, but it will probably take until v13.0.0 (October 2024) or v14.0.0 (2025) until we could ship such a feature.

[bhack]

We had some PR time ago like #331.
I think the vulkan advantage is that it is internal so we don't need third party dependency:
https://trac.ffmpeg.org/wiki/HWAccelIntro