cv2.VideoCapture get stride

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Hi,

I would like to know how I can retrieve the stride (or line size) value from a python VideoCapture?

I am only able to get width and height from the capabilities like this:

vc = cv2.VideoCapture(args.video)    
# Get capabilities         
width  = vc.get(cv2.cv.CV_CAP_PROP_FRAME_WIDTH)
height = vc.get(cv2.cv.CV_CAP_PROP_FRAME_HEIGHT)

Stride is always equal to width with VideoCapture?