Question

我想使用python在openCV中播放视频并随时关闭该窗口，但是它不起作用。

import numpy as np
import cv2

fileName='test.mp4'  # change the file name if needed

cap = cv2.VideoCapture(fileName)   # load the video

while(cap.isOpened()):
    # play the video by reading frame by frame
    ret, frame = cap.read()
    if ret==True:
        # optional: do some image processing here 

        cv2.imshow('frame',frame)              # show the video
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
    else:
        break

cv2.waitKey(1)
cv2.destroyAllWindows()
cv2.waitKey(1)

窗口打开并开始播放视频，但是我无法关闭窗口。

Answer 1

您可以使用Counter({('network discover', '192.168.0.15'): 3, ('network discover', '192.168.0.12'): 1, ('ETERNALBLUE tool', '192.168.0.15'): 1, ('ETERNALBLUE tool', '192.168.0.12'): 1})检测窗口是否关闭。我对索引不确定，但这对我有用：

pad_width = 8 - length_of_your_array
pad_array = np.zeros(pad_width)
desired_array = np.concatenate((pad_array, your_array))

无法在OpenCV中关闭视频窗口

1 个答案: