* Second parameter is either 0 or a subtitle that should be on this frame.
*/
boost::signals2::signal<void (boost::shared_ptr<Image>, boost::shared_ptr<Subtitle>)> Video;
* Second parameter is either 0 or a subtitle that should be on this frame.
*/
boost::signals2::signal<void (boost::shared_ptr<Image>, boost::shared_ptr<Subtitle>)> Video;