get_video() to be called in response to this signal.
*/
_player_change_connection = _player->Change.connect (bind (&Butler::player_change, this, _1), boost::signals2::at_front);
get_video() to be called in response to this signal.
*/
_player_change_connection = _player->Change.connect (bind (&Butler::player_change, this, _1), boost::signals2::at_front);