- // “whatever goes”, so we don't get VDPAU or CUDA here without enumerating
- // through several different types. VA-API will do for now.
+ // “whatever goes”, so we don't get CUDA or VULKAN or whatever here
+ // without enumerating through several different types.
+ // VA-API and VDPAU will do for now. We prioritize VDPAU for the
+ // simple reason that there's a VA-API-via-VDPAU emulation for NVidia
+ // cards that seems to work, but just hangs when trying to transfer the frame.
+ //
+ // Note that we don't actually check codec support beforehand,
+ // so if you have a low-end VDPAU device but a high-end VA-API device,
+ // you lose out on the extra codec support from the latter.