Observation in bios6 application source code

Hi,

I am using DVR-RDK3.50 for DM8168 EVM. I have configured tvp7002 for 720p, 16 bit embedded sync mode from A8 using i2c utility. I ran my capture-display demo. It has successfully captured 720p but display on on-chip HDMI was not proper. Then I tried to debug bios6's application source for capture.

I have observed in CaptureLink_drvCreateInst function in captureLink_drv.c file that pInst->maxHeight is set to 748 for FVID2_STD_720P_60 standard. I have changed this value to 720. Now my demo is successfully able to capture and display 720p video.

So what is the reason for setting 748 to pInst->maxHeight ?

Thanks in advance,

Shabbir Limdiwala