How to add ffmpeg options to VideoCapture

[crackwitz]

@wqh17101

cap = cv2.cudacodec.createVideoReader(url)
ret, frame = cap.nextFrame()
while ret:
    frame = cv2.cuda.cvtColor(frame,cv2.COLOR_BGRA2BGR)
    image = frame.download()  
    pushing(image)
    ret, frame = cap.nextFrame()

whatever that did, please do this instead. I only rearranged the code to use a single nextFrame. while-true loops are okay.

cap = cv2.cudacodec.createVideoReader(url)
while True:
    (ret, frame) = cap.nextFrame()
    if not ret: break
    frame = cv2.cuda.cvtColor(frame,cv2.COLOR_BGRA2BGR)
    image = frame.download()  
    pushing(image)