I am using adv7280 to capture video through s-video and output to sii9022a

Hello.

The original solution was adv7280+adv7513 but now I cannot get the adv7513 chip. This shows that the supply is tight, so I use sii9022a instead. As a result, black bars appeared in the upper part of the video.

And the image display resolution is 720x508 instead of 720x480.

Remove the signal source, the display color bar can be covered.

By adjusting the 0x04 register to adjust the output bt656 format, the black box will be adjusted to the following

what should I do?