# loop over frames from the video file stream
while True:
	# read the next frame from the file
	(grabbed, frame) = vs.read()

	# if the frame was not grabbed, then we have reached the end
	# of the stream
	if not grabbed:
		break

	# construct a blob from the frame and perform a forward pass
	# using the segmentation model
	frame = imutils.resize(frame, width=args["width"])
	blob = cv2.dnn.blobFromImage(frame, 1 / 255.0, (1024, 512), 0,
		swapRB=True, crop=False)
	net.setInput(blob)
	start = time.time()
	output = net.forward()
	end = time.time()