Hi, I m using opencv 4.1.2 and Macbook to set camera properties but continously getting False in response for brightness and exposure while height and width are fine. Macbook OpenCV 4.1.2 Logitech Brio 4K

`import cv2 import time cap = cv2.VideoCapture(1,cv2.CAP_AVFOUNDATION) r=cap.set(3,1920) print(r) r=cap.set(4,1080) print(r) time.sleep(2) r1=cap.set(cv2.CAP_PROP_AUTO_EXPOSURE, 0) r=cap.set(cv2.CAP_PROP_EXPOSURE, -7) print(r1) print(r) r=cap.set(cv2.CAP_PROP_BRIGHTNESS,1.0) print(r) print(cap.get(cv2.CAP_PROP_BRIGHTNESS)) ret, img = cap.read() img1="1.jpg" cv2.imwrite(img1, img)

cv2.imshow(img)

cap.release() `

Response True True False False False 0.0

Hi, I m using opencv 4.1.2 and Macbook to set camera properties but continously getting False in response for brightness and exposure while height and width are fine. fine. Macbook OpenCV 4.1.2 Logitech Brio 4K

import cv2
import time
cap = cv2.VideoCapture(1,cv2.CAP_AVFOUNDATION)
r=cap.set(3,1920) 
print(r)
r=cap.set(4,1080)
print(r)
time.sleep(2)
r1=cap.set(cv2.CAP_PROP_AUTO_EXPOSURE, 0)
r=cap.set(cv2.CAP_PROP_EXPOSURE, -7)
print(r1)
print(r)
r=cap.set(cv2.CAP_PROP_BRIGHTNESS,1.0)
print(r)
print(cap.get(cv2.CAP_PROP_BRIGHTNESS))
ret, img = cap.read()
img1="1.jpg"
cv2.imwrite(img1, img)img)
#cv2.imshow(img)
cap.release()

True
True
False
False
False
0.0
0.0