python opencv生成 html5 支持的mp4

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opencv4.0

stream = cv2.VideoCapture(0)

创建ok:

fourcc = cv2.VideoWriter_fourcc(*'avc1')#7579

fourcc = cv2.VideoWriter_fourcc(*'H264') #7473

fourcc = cv2.VideoWriter_fourcc(*'x264')

有mp4，播不了：
fourcc = cv2.VideoWriter_fourcc('m', 'p', '4', 'v')

fourcc = cv2.VideoWriter_fourcc(*'DIVX')

data='123.mp4'

以前的代码：

#!/usr/local/bin/python3

import cv2

videoCapture = cv2.VideoCapture('test.avi')

# fourcc = cv2.VideoWriter_fourcc(*'mp4v')
fourcc = cv2.VideoWriter_fourcc(*'DIVX')
out = cv2.VideoWriter('output.mp4', fourcc, 5.0, (1280, 720))

while(1):
    ret, frame=videoCapture.read()
    if frame is None:
        break
    out.write(frame) # Write out frame to video

    cv2.imshow('video',frame)
    if (cv2.waitKey(1) & 0xFF) == ord('q'): # Hit `q` to exit
        break

# Release everything if job is finished
out.release()
cv2.destroyAllWindows()