virtual RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)=0;
virtual RESULT start()=0;
virtual RESULT stop()=0;
virtual RESULT connectEvent(const Slot2<void,iPlayableService*,int> &event, ePtr<eConnection> &connection)=0;
virtual RESULT start()=0;
virtual RESULT stop()=0;