I am a filmmaker who wants to be able to use my macbook as an external monitor for a video camera in a studio-interview type setting. The camera is decent, but its screen is small and I don't have any external monitors handy (money is tight). Is there some software that would be able to receive an HDMI-out signal from my camera and then display it on the macbook screen via an HDMI → Thunderbolt adaptor (I have one)?
So the flow would look like this:
Camera → HDMI Cord → HDMI-to-ThBt Adaptor → Software to look at what the camera is sending → my eyes.
Recording the feed is not necessary.