[virtuald]

I use this:

        vc = cv2.VideoCapture()
        vc.set(cv2.cv.CV_CAP_PROP_FPS, 1)
        
        if not vc.open('http://%s/mjpg/video.mjpg' % self.camera_ip):
            return

        while True:
            retval, img = vc.read(buffer)
            ...

One bug present in OpenCV that hasn't been fixed can be found on their bug tracker here: http://code.opencv.org/issues/2877 . If you compile your own OpenCV you can patch the bug. I've been meaning to patch it in a better way but haven't done so yet, as I don't have an axis camera easily available for testing.