when you look the stream on Twitch, image quality looks really worse. So I use Medium and no problem at all with the configuration.īut. If I try to go to Slow profile, CPU doesn't take load to 100% but encoding lag makes me lost about 45% of my frames. Around 45% of CPU use and no frames lost due to rendering lag or encoding lag.
I use x264, Medium profile, preset high, 7500 kbps bitrate. With that settings, streaming preview on that PC looks good, with high image quality and a good colour matching to the original HDR source. To do so, in the video capture source I use two filters: a LUT filter (3dlut) and a colour filter (a version of both for each game, fine tuned for them). Obviously, OBS capture can not read HDR metadata, so imput video needs to be tonemapped to SDR. Downscalling in source properties seemed to be the more efficient than setting the canvas in 4K and output in HD.
In OBS I use a source for video capture device, and on its properties I set resollution to 1920x1080 (canvas in same 1920x1080). I play games in the gaming one at 4K HDR 60 fps.
The streaming one has a Avermedia live gamer 4K capture card and a Ryzen 7 2700x.
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