Issue in running a function that returns the frames captured by webcam using opencv

Question

I already wrote a code that can display the frames captured by webcam, but i want to write a function with can do the same, the code i wrote is below

import cv2

def cam2frame():

cap = cv2.VideoCapture(0)   

while(True):

    ret,frames = cap.read()
    gray = cv2.cvtColor(frames,cv2.COLOR_BGR2GRAY)
    cv2.imshow('frames',gray)
    return gray
    if cv2.waitKey(1) & 0xFF == ord('q'):

        break
cap.release()
cv2.destroyAllWindows()

cam2frame()

I am getting this error:

[ WARN:0] global C:\projects\opencv-python\opencv\modules\videoio\src\cap_msmf.cpp (674) SourceReaderCB::~SourceReaderCB terminating async callback

I want the function to return the frame captured and I also want to use the function in a different.py file

Answer 1

Use this setx OPENCV_VIDEOIO_PRIORITY_MSMF 0 before running your code.