Question / Help NVENC2 Blocking in VBR 50mbit 1080p

jacenat

New Member
I am a bit of a loss here. I recently set up my HD PVR 2 with my PS4 Pro to capture in OBS. For the most part, this works out fine.
I still run into troubles capturing archival footage with minimal compression. Other Specs in my PC (also in the Log):
CPU: i5-8600K non-OC
GPU: GTX 1060 6GB non-OC

Log of the last run here: https://pastebin.com/yciybr2L
Still image (1:1 px) grab here:
tDzf9tf.png

The video was encoded with NVENC2 VBR 50mbit (75mbit max), Max. Quality, Profile high, Look ahead and PVT enabled, Max B-Frames 2.

I think I am doing something wrong here. The image seems to pixelate much more than I am used to from direct catpure on PC. However, things to note:
I am running the PS4 at 60fps and record in OBS in 60fps, but the HD PVR 2 obviously only gives me 30fps. Are these pixelations actually from the HD PVR 2 limited by it's USB 2.0 interface? It should give me 40mbit and the device is connected to it's own USB 3.0 socket, just to be sure.

Anyone got any more input why the pixelation happens? Amy I doing something wrong on the encoding side?
 

jacenat

New Member
Just as a comparison, I looked at directly capturing the PC version (75% resolution) and it looks drastically different:

87YtsK9.png

While the image overall is much softer, the blocking is much much less pronounced. Is the different really just that the PS4 version just has much higher contrast edges?
 
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