Looking at ppt from Robert , it seems v4l2 subdevices is the way to support different devices that may be involved in imaging processing chain, also from the ppt it seems a userside library for Media controller is needed particular to each platform which controls these subdevices.I have not been able to find detailed documentation on this but it seems we are talking about custom solution for every platform based on platform topology for image processing chain.
On Wed, Feb 9, 2011 at 11:53 AM, Subash Patel subash.rp@samsung.com wrote:
In the reference architecture in ppt, we can directly wait for the RSZ interrupt, if we configure the hardware pipe. It was my mis-understanding as each of those hardware blocks can deliver interrupts too. In that way ARM needs to just work at finished frame, like forward it to the display or codec engine etc. V4L2 can be easily used for such hardware architecture.
But if a ISP chooses to do the above work in a seperate (dsp)processor, can we still use V4L2? OMX seems better in such environment. Let me know if there is any other alternative.
Regards, Subash _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev