Change stream source for your wenbcam
You can make your webcam
output stream from a video file or a image file:

Setting steps:
To output a
image to your webcam, select “Image file” in sub menu of “Stream Source” select
image file you want to out put.

To output a
video to your webcam, select “Video file”
in submenu of “Stream Source” select video file you want to out put.
To output
webcam device again, select “Webcam Device” in submenu of “Stream Source”.