cap=cv2.VideoCapture(0)# change 0 1
fourcc=cv2.VideoWriter_fourcc(*"XVID")

out=cv2.VideoWriter("outut.avi",fourcc,20,(640,480))
while True:
    ret, frame=cap.read()
    cv2.imshow("frame",frame)
    out.write(frame)
    if cv2.waitKey(1) & 0xFF==ord('q'):
        break
cap.release()
out.release()
cv2.destroyAllWindows()