- Posts: 3
- Joined: Tue Nov 05, 2019 1:04 pm
- Real Name: Joe Brown
Yes, this is possible. The configured keyer (when enabled) is an overlay on top of the program video source.
So if you set the Program video source to Input 1 and then configure the keyer to be a chroma key using Input 2. Then once you turn on the keyer, whatever content the keyer extracts from Input 2 (the person in this case) will be overlaid over Input 1.
There's a demonstration of green screen keying with the ATEM Mini in the introduction video here:
https://player.vimeo.com/video/35970294 ... 1#t=45m30s
In the video they are keying a green screen animation from a computer over a live video source, but the setup is the same if keying a live video source over a static (or animated) background from a computer. To the switcher, all of the HDMI inputs are video sources, so it makes no difference whether the video is coming from a computer, a camera, or some other video equipment. The switcher will key whatever input source you have configured over any other input.
One other note is that if the background is just a static image, you could actually load it into one of the media players in the ATEM Mini, then set the media player as the program source and key the live video on top of that. In this configuration, you wouldn't need a separate laptop with an HDMI output to generate your background and it would also free up Input 1 for some other video source.