Forum Post: how to use DMA to opration FVID2_FRAME

Hi  all
          I am using DVRRDK_04.01.00.02 with DM8168X_UD_DVR.

I have a problem:

there is a FVID2_FRAME  inFrame  and a FVID2_FRAME outFrame ,inFrame  video date reslution is 3840x2160 ，how to use DMA to get 1/4 part of the video date (1920x1080) ,and save  it  into outFrame.