def peer_subscribe(self, topic_name, topic_publish, peer_publish):
    'Lazy-start the image-publisher.'
    if (self._streaming_thread is None):
        self._streaming_thread = ImageStreamingThread(self)
        self._streaming_thread.start()
    else:
        self._streaming_thread.resume()
Lazy-start the image-publisher.
def peer_subscribe(self, topic_name, topic_publish, peer_publish):
    
    if (self._streaming_thread is None):
        self._streaming_thread = ImageStreamingThread(self)
        self._streaming_thread.start()
    else:
        self._streaming_thread.resume()