Hi guys,

I am getting this error when running the following code through LabVIEW which is interacting with Python through the cmd line.

import cv2 import sys

argv 0 = This py code

cap = cv2.VideoCapture(sys.argv[1]) print sys.argv[1] new = sys.argv[2] print new if cap.grab() == True: fourcc = cv2.cv.CV_FOURCC('C','V','I','D')

fps = int(cap.get(5))
width = int(cap.get(3))
height = int(cap.get(4)) 

out = cv2.VideoWriter(new,fourcc, fps, (width,height))

delay = int(1000/fps)#delay in s

num = int(cap.get(7)) #number of frames
z = float(0.0)

for k in range(1,num):
    ret, frame = cap.read()

    z += 1
    percent = float((z/num)*100)
    out.write(frame)#write flipped frame

    print percent
    cv2.waitKey(1)

cap.release()
out.release()

I am calling it using a LabVIEW code but effectively I'm just giving a filename to convert from mp4 to AVI.

Any help appreciated.

Woody

Hi guys,

I am getting this error when running the following code through LabVIEW which is interacting with Python through the cmd line.