vwriter.py 文件源码

def red_and_black():
    red = cv2.imread('./data/redHDSolidBlock.jpg')
    black = cv2.imread('./data/blackHDSolidBlock.jpg')
    vwriter = VideoWriter('red_black_0.5Hz.avi')
    frames = 0
    for t in range(30):
        for f in range(20):
            vwriter.addFrame(black)
            frames+=1
        for f in range(20):
            vwriter.addFrame(red)
            frames+=1
    vwriter.finalise()
    print("Created movie with %d frames" % frames)