I'm using DM8168 EVM + Daughter I/O card (with two TVP7002 on it ) to capture 1080I/ YPBPR video source now. The software is DVRRDK4.0. Because the usage of TVP7002 on A8 side seems not presented in the SDK, I realize it myself refering to the usage of TVP5158 which is given. Finally when I run the demo ( OPT.3 VCAP+VENC+VDEC+VDIS HD progressive.), most of the result is correct except that a grey semitransparent mask covers the video window. Under it , the video is smooth. The grey mask will also appears a short time during demo is initialled. If video source is removed , the mask become a totally grey background.. I have checked the config of TVP7002 many times , but it dosn't like the error . So could somebody help me? Where and how should I check?