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CSI->VDI on i.MX53 IPU

Question asked by Leon Craven on Oct 31, 2012
Latest reply on Feb 1, 2016 by TomE
Branched to a new discussion



Has anyone actually managed to implement the "real time mode" of capturing a field from the CSI and sending it directly to the VDI, without double buffering the field in MEM first? An example flow would be CSI->VDI->>PRP_VF(IC)->MEM.


Freescale hasn't implemented any CSI->VDI flows. At the moment we are using CSI->MEM followed by MEM->VDI->PRP_VF(IC)->MEM, however this path adds too much latency. We don't care about tearing or other artifacts, our main concern is latency.


I've searched the Freescale forums (and used Google) but can't seem to find anyone that has managed to implement a CSI->VDI flow. I've also added a Service Request with Freescale, but I'm still waiting to hear back. My concern is that this flow isn't actually possible.


We are using Linux, but if someone has managed to implement a CSI->VDI flow in another OS, that would at least give me some confidence that it is actually possible.




Leon Craven