I need to design a 4:1 video switch with an HDMI output. Each of the input channels has 4 inputs: 1) composite video, 2)S video, 3)RGB, HDMI pass through.
The input multiplexing is no problem. The signals do not have to be upscaled only to be converted. Can this be done without a DSP chip ? Are there any IC available that does the conversion ?. Any advice will be welcome.