FIR 2D behavioural

I think the following will work but perhaps you should confirm that the IP is doing the right thing:

For the splitter:

din0 is C Y, please make sure that this is the correct order in time (or correct endianess if in parallel)

dout0 should be C and you should halve the width of the control packets

dout1 should be Y

A slightly different way of doing the same thing is given in the VIP user guide with the 2 pixels per port option

For the joiner:

din0 should be Y

din1 should be C

dout0 should be C Y and the source of non-image packet should be din0