Copying cv::Mat to Ipp

I was wondering if anyone had quick example code for this, I couldn't find any examples in this forum or OpenCV's website. If not, I have a few questions where I am most confused on.

1. OpenCV is interlaced, in bgr format. Ipp expects planar images though (as per the malloc definition.) For now I think I'll avoid this, and just only convert grayscale images, But this is useful for future work/questions.
2. The OpenCV widthstep is no longer 32 bit aligned. So my assumption is going to be to transfer row by row from a cv::Mat into an ipp_malloced memory. I'm assuming that OpenCV widthstep < IPP widthstep.
3. Is there anything else I should worry about?

Thank you in advance!Constantin