Get the video size in pixels as 2-tuple (width, height).

        @param num: video number (default 0).

def video_get_size(self, num=0):
        """Get the video size in pixels as 2-tuple (width, height).

        @param num: video number (default 0).
        """
        r = libvlc_video_get_size(self, num)
        if isinstance(r, tuple) and len(r) == 2:
            return r
        else:
            raise VLCException('invalid video number (%s)' % (num,))