I'm about to upgrade my setup to use it with my 4K-Equipment.
I am using the Pioneer amp VSX-1131 which has 2 HDMI outputs. One is connected directly to the TV the other to a RCA-to-HDMI converter. It works fine with a 1080p setup.
A USB video grabber is connected to the RPi3 and the RCA of it to the conveter.
My question is could I replace the USB video grabber and the RCA-to-HDMI converter with a 4K USB capture card like this one:
Aoboco HDMI Loop Out 4K Videoaufzeichnung Videokonverter Übertragungen
Or do you suggest another solution?
I already tried different HDMI splitter/ scaler but it did not work. Due to the two outputs of the amp the splitter/ scaler always caused a downscaling of both ports to 1080p.
Thank for all feedback.