import cv2
import numpy as np

file_name = "f:\\MOV_20170813_0318580.mp4"
window_name = "window"
interframe_wait_ms = 30

cap = cv2.VideoCapture(file_name)
if not cap.isOpened():
    print "Error: Could not open video."
    exit()

cv2.namedWindow(window_name, cv2.WND_PROP_FULLSCREEN)
cv2.setWindowProperty(window_name, cv2.WND_PROP_FULLSCREEN, cv2.WINDOW_FULLSCREEN)

while (True):
    ret, frame = cap.read()
    if not ret:
        print "Reached end of video, exiting."
        break

    cv2.imshow(window_name, frame)
    if cv2.waitKey(interframe_wait_ms) & 0x7F == ord('q'):
        print "Exit requested."
        break

cap.release()
cv2.destroyAllWindows()