import cv2

cap = cv2.VideoCapture("BBunny_360x240_1mb.mp4")
print cap.isOpened()   # True = read video successfully. False - fail to read video.

fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter("output_video.avi", fourcc, 30.0, (320, 240))
print out.isOpened()  # True = write out video successfully. False - fail to write out video.

while True:
	ret, frame = cap.read()
	out.write(frame)
	cv2.imshow('frame',frame)
	if cv2.waitKey(1) & 0xFF ==ord('q'):
		break

cap.release()
out.release()
cv2.destroyAllWindows()