Wed Nov 17, 2021 9:26 am
My opinion: You can't get 4 times the visual information (2K to 4K) by upscaling. If you can start with 4K information, use that for the final render. Even if you have to render at a slow speed, like 10fps or 4fps, that'll be better than upscaling HD.
If you're shooting in HD, then it's arguable what advantage you would get in uploading 4K. I would run a 5-minute test: do one where you just upload HD, and one where you upload in 4K, and see which looks better to you. I'm pretty certain that YouTube re-encodes everything uploaded, so the idea is the better the source material, and the higher the bitrate, "in theory," the better it will look. But there's only so much you can squeeze out of a GoPro.
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