I am trying to use OBS Studio to record a camera; input through HDMI.
Because of storage limitations I’m trying to take the 4K signal and record it as 1080p. Ideally I’d like to have the full 4K signal hit the encoder, and have the encoder do all the transformation, since h.265 can do more advanced things like change the color format and apply dithering. Unfortunately there doesn’t seem to be a way to do this though..
I’d expect some command like (–output-resolution) or something like that. Maybe I’m missing something obvious.
For those who are curious, the reason I’m asking is because an 8-bit 1080p 4:2:0 frame stores the exact same pixel data as a 10-bit 4:4:4 frame, but at a significantly smaller file size. The only issue is that so far I haven’t figured out how to make that transformation without losing data along the chain. In this case, we are losing data when OBS does the downscaling pre-encoder.
