mac25h wrote:I'm in a similar situation.
Did you find a solution to this?
I too am in a similar situation. Currently, we use a DataVideo KMU-200 to take a fixed 4K camera signal and effectively turn it into 4 cropped “virtual” 1080p cameras. The KMU-200 also does the streaming as well, allowing the operator to switch between these 4 (touchscreen adjustable) 1080p virtual cameras, a 1080p version of the full 4K view, and an HDMI/PC 1080p input(slides or secondary camera).
Before we got the KMU-200, I utilized my ATEM Mini Pro with multiple temporary cameras set up for each event, which (as we all know) has a feature set second to none - and my preference would be to utilize an ATEM Extreme. However, to do so, I would need some way to take the 4K HDMI signal and split it into multiple cropped 1080p signals to feed into the multiple ATEM Extreme inputs.
We should be able to use a 4K 1-to-8 signal splitter to duplicate the main 4K camera for processing. However, while there may or may not be a way to do cropping of each distinct ATEM HDMI input, I’m assuming that the cropping is done post-down conversion from 4K to 1080p…..and so using the built-in ATEM crop, we would take a a 4K signal, turn into 1080p, then take a 600p-480p crop of that and upscale it to 1080p for the stream. As the current KMU-200 native cropping is already somewhat problematic for clarity during some lighting conditions, I am concerned about this 4K-1080-480-1080 down/upscale routing (if it’s even possible).
It also occurs to me that I could create an OBS setup with a computer with 4 1080p HDMI outputs, that rendered a different crop to each output, that is then fed to 4 of the ATEM Extreme inputs. However, this seems to be a much more complex solution, which could add significant risk for a non-technical volunteer operator.
Ideally, there would be a device that could take one 4K input and have multiple cropped 1080p outputs - or even one that just goes from 1 4K to a 1080p user-defined crop(and get one cropping device for each input).
Anyone know of such a device? Or perhaps if there will be a future ATEM with 4K input?