Linux and HDMI grabbing in 2020

HDMI grabbing? These are devices you connect you a computer (might be a tiny one like a Raspberry Pi), and which convert HDMI input from a cable into something useful for further processing. I’m sharing here details from my experiments with 2 grab devices, and using Linux for processing. So practically, what can I do with this? My usecase is that I have just a single monitor, with just a [Read More]