# Not able to set some parameters of camera

**URL:** <https://forum.opencv.org/t/not-able-to-set-some-parameters-of-camera/10194>\
**Category:** Python\
**Tags:** camera, videoio\
**Created:** [September 14, 2022, 9:41am UTC](https://forum.opencv.org/t/not-able-to-set-some-parameters-of-camera/10194 "2022-09-14T09:41:22Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jan\_Egil\_Glaestad](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/jan_egil_glaestad/32/6051_2.png) [@Jan\_Egil\_Glaestad](https://forum.opencv.org/u/Jan_Egil_Glaestad)\
**Post date:** [September 14, 2022, 9:41am UTC](https://forum.opencv.org/t/not-able-to-set-some-parameters-of-camera/10194/1 "2022-09-14T09:41:23Z")

</div>

Im using a ps4 camera and this driver: [GitHub - Hackinside/PS4-CAMERA-DRIVERS: Windows drivers ( WIP)](https://github.com/Hackinside/PS4-CAMERA-DRIVERS)

with the “many-cam” sw, i am able to set gain and exposure time. when i try this in opencv, i dont succeed. Some parameters i can set in open cv,like fps. if i set parameters in many-cam and then open a opencv program in python, the previous settings done in manycam dont have any effect.

Any suggested solutions or workarounds?

```auto
type or paste code here

cap = cv2.VideoCapture(0, cv2.CAP_MSMF)

#captureDevice = cv2.VideoCapture(0, cv2.CAP_DSHOW)

cap.set(cv2.CAP_PROP_SPEED, -5)
print (cap.get(cv2.CAP_PROP_SPEED))

cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1748)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 408)
time.sleep(2)
cap.set(cv2.CAP_PROP_FPS, 120) 

cap.set(cv2.CAP_PROP_EXPOSURE, -5)
cap.set(cv2.CAP_PROP_GAIN,5.0)
print (cap.get(cv2.CAP_PROP_EXPOSURE))
print (cap.get(cv2.CAP_PROP_MODE))
print (cap.get(cv2.CAP_PROP_FORMAT))
print (cap.get(cv2.CAP_PROP_GAIN))

def decode(frame):
    left = np.zeros((400,800,3), np.uint8)
    right = np.zeros((400,800,3), np.uint8)
    
    
    for i in range(400):
        left[i] = frame[i, 32: 832] 
        right[i] = frame[i, 832: 1632] 
    
    return (left, right)

while(True):

    ret, frame = cap.read()
    #cv2.normalize(frame, frame, 0, 255, cv2.NORM_MINMAX)

    left, right = decode(frame)

    cv2.imshow('left',left)
    cv2.imshow('right',right)

    time.sleep(0.2)

    keywi=cv2.waitKey(1)

    if keywi & 0xFF == ord('q'):
        break

    if keywi & 0xFF == ord('r'):
        timesy=str(time.time())
        timesy=timesy.replace('.', '')
        cv2.imwrite(f'C:\PyPj\modbusTcp\data\d{timesy}d.png', left)
        print(f'bilde tatt')

cap.release()
cv2.destroyAllWindows()

```

---

<div class="post-metadata">

**Author:** ![Jan\_Egil\_Glaestad](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/jan_egil_glaestad/32/6051_2.png) [@Jan\_Egil\_Glaestad](https://forum.opencv.org/u/Jan_Egil_Glaestad)\
**Post date:** [September 14, 2022, 11:22am UTC](https://forum.opencv.org/t/not-able-to-set-some-parameters-of-camera/10194/2 "2022-09-14T11:22:32Z")

</div>

actually i see now that the changes i do in manycam do stick. even if opencv reports others values when i print them. so, hurdle passed for now.