The compute module makes that second csi port available on it connector and I believe the kit makes it easy to connect to.jussi24 wrote:That's highly interesting. I thought of it since the first cam module I bought. Are there more information available? I know about a second CSI port that is available on the Broadcom chip. Is it identical in connectivity and (GPU-) features? How is double displaying/preview and other things realized in raspimjpeg? What about GPU-limitations when processing both streams simultaneously? Or is it a switching (either/or) concept?btidey wrote:Olegg had made a useful pull request adding support for a second camera if using the compute module not a standard Pi.
In the Olegg change it is just a selection switch in the MMAL layer. I.e we connect to the first interface or we connect to the second. Only one is active at a time. I don't know about whether the GPU or MMAL could handle both simultaneously. My guess would be not.
The other restriction in the raspimjpeg support is that both cameras share the same set of parameters. You can of course change parameters on the fly after making a switch but it is not maintaining them separately. That would be feasible in raspimjpeg but is a fairly largish change to the config set up as most items would need to be indexed.