So I've got all intra encoding working in OBS via NvEnc and it's pretty simple! Just use the 'Custom Output (ffmpeg)' option and, er, set keyframe interval to 1, per the attachment.
However, default encoding is CBR. Selecting the 'Standard' type encoding opens the door to CQP but the only option there is keyframes spaced by seconds. A one second keyframe interval is still very quick in Premiere, but not really what I want - ini tweaks to set it to 0.1666666 don't help either
So I guess the question I have is this: on the video encoding settings on the Custom Output (ffmpeg) type, can I specify CQP encoding? And is it possible to get full 10-bit 4:4:4? Mediainfo suggests my captures are 8-bit 4:2:0 which is fine for my needs, but going for broke on fidelity would be a nice option.