how to use dvr_rdk 3.0 capture HD vedio?

I use dvr_rdk 3.0.1 8168 platform .

Now when  I capture Hd video,I can't get a  complete picture.  The YUV file I captured as follow show:

If in EZSDk the vedio captured is ok,but in dvr paltform the vedio captured  can't show peferct.

Is the dvr_3.0.1' xem3 file only for D1 and can't use it for capturing HD vedio?

or other reason?