drngr said:
Download GraphEdit, open it, hit CTRL+F, expand the sections "Video Capture Sources" and "WDM Streaming Crossbars" and take a screenshot for us to see.
http://imageshack.us/a/img18/6806/s345.png
http://imageshack.us/a/img849/7519/j0ce.png
http://imageshack.us/a/img440/6302/jen.png
Here you go,work from bottom up. thanks.