I'm using the code described below to record my webcam on macbook pro. The file being generated is not a valid video, and I can't open it in a video player When I try to use CV_FOURCC('X','V','I','D') the output is an 'output.mov' file with 414kb (everytime I run the program this size is the same). I tried to change FOURCC to: CV_FOURCC('m', 'p', '4', 'v'). In that case the file are geting bigger for every second that I kept the webcam on, but I still can't open the video file. How can I record this video?
cap = cv2.VideoCapture(0)
w=int(cap.get(cv2.cv.CV_CAP_PROP_FRAME_WIDTH ))
h=int(cap.get(cv2.cv.CV_CAP_PROP_FRAME_HEIGHT ))
fps = cap.get(cv2.cv.CV_CAP_PROP_FPS)
fourcc = cv2.cv.CV_FOURCC('X','V','I','D')
vout = cv2.VideoWriter()
capSize = (w, h)
success = vout.open('output.mov',fourcc,fps,capSize,True)
while(vid.isOpened()):
ret, frame = cap.read()
if ret == True:
vout.write(frame)
cv2.imshow("frame", frame)
if cv2.waitKey(1)& 0xFF == ord('q'):
break
PS: When I tried to open the mp4v format the error ir:
it generates the error:
> Application Specific Information:> *** Terminating app due to uncaught exception 'NSRangeException', reason:> '*** -[__NSArrayI objectAtIndex:]:> index 0 beyond bounds for empty array'> terminating with uncaught exception of> type NSException abort() called
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