CODEWITHSUNDEEP
pythonopencvpython-2.7raspberry-pi
VaFancy
VaFancy

Reputation: 145

Can't save video on Raspberry PI by using python with OpenCV

import cv
import cv2
cap = cv2.VideoCapture(0)
cap.set(8,100)
out = cv2.VideoWriter('/home/pi/Desktop/output.mp4',cv2.cv.CV_FOURCC('D','I','V','X'),20.0,(640,480))
while(cap.isOpened()):
    ret, frame = cap.read()
    if ret==True:
        frame = cv2.flip(frame,0)
        out.write(frame)
        cv2.imshow('frame',frame)
        if cv2.waitKey(10) == 27: 
            break
cv2.VideoCapture(0).release()
out.release()
cv2.destroyAllWindows()

This code worked but it never stopped and no video file had been saved. Does anyone know how to solve this? Thanks a lot.

Upvotes: 0

Views: 2317

Answers (1)

w-m
w-m

Reputation: 11232

Both release() calls can be removed.

cv2.VideoCapture(0).release()

would call release() on a new VideoCapture, what you meant was cap.release().

For the VideoWriter, the release method doesn't exist - you don't have to care about releasing the VideoWriter or VideoCapture in Python. They will be released when their object is destroyed at the end of your program.

Upvotes: 2

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