播放视频

import cv2
import numpy as np

cap = cv2.VideoCapture('http://vodkgeyttp8.vod.126.net/cloudmusic/MjQ3NDQ3MjUw/89a6a279dc2acfcd068b45ce72b1f560/533e4183a709699d566180ed0cd9abe9.mp4?wsSecret=d77f9aeaadd53999e520ec03bbbc3626&wsTime=1595944539')

while(cap.isOpened()):

    ret, frame = cap.read()
    canny = cv2.Canny(frame, 85, 255)
    height, width = canny.shape

    first_black_array = []

    for x in range(width-1):
    # Slice the relevant column from the image
    # The image 'column' is a tall skinny image, only 1px thick
        column = np.array(canny[:,x:x+30])
    # Use numpy to find the first non-zero value
        railPoint = np.argmax(column)

    cv2.imshow('frame',frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break
cap.release()
cv2.destroyAllWindows()