See this it be help on setup the video input see 13.
http://www.shspvr.com/graph_build/realtime_perview.html
All you need to do is fine
1. Under “WDM Streaming Capture Devices” insert the following
a) ATI Capture.
2. Under “WDM Streaming Crossbar Devices” insert the following
a) ATI Xbar.
Draw a line Pining the Decoder to the Input on both Audio and Video
Rigth click on ATI Pervierw on both audio and Video pin and chosee Render Pin