h323rtp.h

Go to the documentation of this file.

/*
 * h323rtp.h
 *
 * H.323 RTP protocol handler
 *
 * Open H323 Library
 *
 * Copyright (c) 1998-2001 Equivalence Pty. Ltd.
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Open H323 Library.
 *
 * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
 *
 * Portions of this code were written with the assisance of funding from
 * Vovida Networks, Inc. http://www.vovida.com.
 *
 * Contributor(s): ______________________________________.
 *
 * $Log: h323rtp.h,v $
 * Revision 2.6  2005/11/30 13:35:26  csoutheren
 * Changed tags for Doxygen
 *
 * Revision 2.5  2004/02/24 11:28:45  rjongbloed
 * Normalised RTP session management across protocols
 *
 * Revision 2.4  2004/02/19 10:46:44  rjongbloed
 * Merged OpenH323 version 1.13.1 changes.
 *
 * Revision 2.3  2002/11/10 11:33:17  robertj
 * Updated to OpenH323 v1.10.3
 *
 * Revision 2.2  2002/09/16 02:52:34  robertj
 * Added #define so can select if #pragma interface/implementation is used on
 *   platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
 *
 * Revision 2.1  2002/09/04 06:01:47  robertj
 * Updated to OpenH323 v1.9.6
 *
 * Revision 2.0  2001/07/27 15:48:24  robertj
 * Conversion of OpenH323 to Open Phone Abstraction Library (OPAL)
 *
 * Revision 1.11  2003/10/27 06:03:39  csoutheren
 * Added support for QoS
 *   Thanks to Henry Harrison of AliceStreet
 *
 * Revision 1.10  2003/02/07 00:27:59  robertj
 * Changed function to virtual to help in using external multiicast RTP stacks.
 *
 * Revision 1.9  2002/09/16 01:14:15  robertj
 * Added #define so can select if #pragma interface/implementation is used on
 *   platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
 *
 * Revision 1.8  2002/09/03 06:19:37  robertj
 * Normalised the multi-include header prevention ifdef/define symbol.
 *
 * Revision 1.7  2002/08/05 10:03:47  robertj
 * Cosmetic changes to normalise the usage of pragma interface/implementation.
 *
 * Revision 1.6  2001/02/09 05:16:24  robertj
 * Added #pragma interface for GNU C++.
 *
 * Revision 1.5  2000/08/31 08:15:32  robertj
 * Added support for dynamic RTP payload types in H.245 OpenLogicalChannel negotiations.
 *
 * Revision 1.4  2000/05/18 11:53:34  robertj
 * Changes to support doc++ documentation generation.
 *
 * Revision 1.3  2000/05/02 04:32:24  robertj
 * Fixed copyright notice comment.
 *
 * Revision 1.2  2000/04/05 03:17:31  robertj
 * Added more RTP statistics gathering and H.245 round trip delay calculation.
 *
 * Revision 1.1  1999/12/23 23:02:35  robertj
 * File reorganision for separating RTP from H.323 and creation of LID for VPB support.
 *
 */

#ifndef __OPAL_H323RTP_H
#define __OPAL_H323RTP_H

#ifdef P_USE_PRAGMA
#pragma interface
#endif


#include <rtp/rtp.h>


class H225_RTPSession;

class H245_TransportAddress;
class H245_H2250LogicalChannelParameters;
class H245_H2250LogicalChannelAckParameters;

class H323Connection;
class H323_RTPChannel;



class H323_RTP_Session : public RTP_UserData
{
  PCLASSINFO(H323_RTP_Session, RTP_UserData);

    virtual void OnTxStatistics(
      const RTP_Session & session   
    ) const;

    virtual void OnRxStatistics(
      const RTP_Session & session   
    ) const;

    virtual BOOL OnSendingPDU(
      const H323_RTPChannel & channel,            
      H245_H2250LogicalChannelParameters & param  
    ) const = 0;

    virtual void OnSendingAckPDU(
      const H323_RTPChannel & channel,              
      H245_H2250LogicalChannelAckParameters & param 
    ) const = 0;

    virtual BOOL OnReceivedPDU(
      H323_RTPChannel & channel,                  
      const H245_H2250LogicalChannelParameters & param, 
      unsigned & errorCode                              
    ) = 0;

    virtual BOOL OnReceivedAckPDU(
      H323_RTPChannel & channel,                  
      const H245_H2250LogicalChannelAckParameters & param 
    ) = 0;

    virtual void OnSendRasInfo(
      H225_RTPSession & info  
    ) = 0;


  protected:
    H323_RTP_Session(
      const H323Connection & connection  
    );

    const H323Connection & connection; 
};


class H323_RTP_UDP : public H323_RTP_Session
{
  PCLASSINFO(H323_RTP_UDP, H323_RTP_Session);

  public:
    H323_RTP_UDP(
      const H323Connection & connection, 
      RTP_UDP & rtp                      
    );

    virtual BOOL OnSendingPDU(
      const H323_RTPChannel & channel,            
      H245_H2250LogicalChannelParameters & param  
    ) const;

    virtual void OnSendingAckPDU(
      const H323_RTPChannel & channel,              
      H245_H2250LogicalChannelAckParameters & param 
    ) const;

    virtual BOOL OnReceivedPDU(
      H323_RTPChannel & channel,                  
      const H245_H2250LogicalChannelParameters & param, 
      unsigned & errorCode                              
    );

    virtual BOOL OnReceivedAckPDU(
      H323_RTPChannel & channel,                  
      const H245_H2250LogicalChannelAckParameters & param 
    );

    virtual void OnSendRasInfo(
      H225_RTPSession & info  
    );

  protected:
    virtual BOOL ExtractTransport(
      const H245_TransportAddress & pdu,
      BOOL isDataPort,
      unsigned & errorCode
    );

    RTP_UDP & rtp;
};


#endif // __OPAL_H323RTP_H

---