rtpeventreceiver.h

symbian平台S60_2nd_FP2_SC rtp实现

#ifndef RTPEVENTRECEIVER_HXX
#define RTPEVENTRECEIVER_HXX

/* ====================================================================
 * The Vovida Software License, Version 1.0 
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 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
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 * This software consists of voluntary contributions made by Vovida
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#include "RtpPacket.h"
#include "DTMFInterface.h"

/**
   A device which receives RTP events (mostly DTMF events).

   @see RtpSession
*/
class RtpEventReceiver
{
    public:
        ///
        RtpEventReceiver();
        ///
        virtual ~RtpEventReceiver();

        /// receives DTMFEvent from RTP
        /// calls the registered callback fucntion
        bool recvEvent( RtpPacket* p );

        ///
        const DTMFInterface* const getDTMFInterface()
        {
            return _DTMFInterface;
        }

        /// set DTMF callback function
        void setDTMFInterface( DTMFInterface* t )
        {
            _DTMFInterface = t;
        }

        /// unset DTMF callback function
        void unsetDTMFInterface( DTMFInterface* /*t*/ )
        {
            _DTMFInterface = 0;
        }

        /// send message to the DTMFinterface callback.
        void eventDTMF( int a, int b )
        {
            _DTMFInterface->sendDTMF( a, b );
        }
         DTMFEvent getDTMFEvent()
         {
         return  _DTMFEvent;
         }
    private:
        // reading events
        bool recvEventRFC2833( RtpPacket* p );
        void recvEventCiscoRTP( RtpPacket* p );
        void sendToDTMFInterface( const DTMFEvent event, unsigned int duration );

        DTMFEvent DTMFToEvent( int event );

        // device interface
        DTMFInterface* _DTMFInterface;

        // state information
        KeyEvent _keyEvent;
        DTMFEvent _DTMFEvent;
};

#endif