#This Python and OpenCV code shall add a line between start and end points
#defined by the user. Not that audio shall not get copied. Also, the code
#does not check availability of input files in the appropriate folder.
#------ -------- ------ -------- ------ -------- ------ -------- ------ -------
import cv2

vin = 'v1.mp4'
vex = 'v1_lined.mp4'

cap = cv2.VideoCapture(vin)

h = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
w = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
fps = cap.get(cv2.CAP_PROP_FPS)
s = (5, h-5)
e = (w-10, h)

c = (255, 0, 0)  #Adjust BGR values to get desired colour.
size = (w, h)

fourcc = cv2.VideoWriter_fourcc('m','p','4','v')
videowriter = cv2.VideoWriter(vex,fourcc,fps,size)
while (True):
	ret, f = cap.read()
	if ret == True:
		im=cv2.line(f, pt1=s,pt2=e,color=c, thickness=5,lineType=8,shift=0)
		videowriter.write(im)
	else:
		break  

cap.release()
cv2.destroyAllWindows()