What are the trade-offs for using VPP vs. IPP for RGB to NV12 color conversion? I am currently using IPP but am unsure what the implication would be for switching to VPP. Is VPP a GPU implementation of color conversion on the GPU's EUs?
From the VPP tutorial sample #6, it seems that VPP can save memory copies by keeping all execution on the GPU:
"VPPParams.IOPattern = MFX_IOPATTERN_IN_VIDEO_MEMORY | MFX_IOPATTERN_OUT_VIDEO_MEMORY;"
That seems to be a big difference vs. IPP color conversion where it is necessary to copy data to the CPU before doing a color conversion. Is my understanding correct?