I use my own-coded ffmpeg based video player and since video color spaces are a gigantic mess, I don't use the vulkan hardware for that, but convert via ffmpeg

I use my own-coded ffmpeg based video player and since video color spaces are a gigantic mess, I don't use the vulkan hardware for that, but convert via ffmpeg the video color space directly to my vulkan framebuffer color space. Still, I would use the vulkan 2D scaler with filtering.