h323rtp.h

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00001 /*
00002  * h323rtp.h
00003  *
00004  * H.323 RTP protocol handler
00005  *
00006  * Open H323 Library
00007  *
00008  * Copyright (c) 1998-2000 Equivalence Pty. Ltd.
00009  *
00010  * The contents of this file are subject to the Mozilla Public License
00011  * Version 1.0 (the "License"); you may not use this file except in
00012  * compliance with the License. You may obtain a copy of the License at
00013  * http://www.mozilla.org/MPL/
00014  *
00015  * Software distributed under the License is distributed on an "AS IS"
00016  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
00017  * the License for the specific language governing rights and limitations
00018  * under the License.
00019  *
00020  * The Original Code is Open H323 Library.
00021  *
00022  * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
00023  *
00024  * Portions of this code were written with the assisance of funding from
00025  * Vovida Networks, Inc. http://www.vovida.com.
00026  *
00027  * Contributor(s): ______________________________________.
00028  *
00029  * $Log: h323rtp.h,v $
00030  * Revision 1.12  2005/11/30 13:05:01  csoutheren
00031  * Changed tags for Doxygen
00032  *
00033  * Revision 1.11  2003/10/27 06:03:39  csoutheren
00034  * Added support for QoS
00035  *   Thanks to Henry Harrison of AliceStreet
00036  *
00037  * Revision 1.10  2003/02/07 00:27:59  robertj
00038  * Changed function to virtual to help in using external multiicast RTP stacks.
00039  *
00040  * Revision 1.9  2002/09/16 01:14:15  robertj
00041  * Added #define so can select if #pragma interface/implementation is used on
00042  *   platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
00043  *
00044  * Revision 1.8  2002/09/03 06:19:37  robertj
00045  * Normalised the multi-include header prevention ifdef/define symbol.
00046  *
00047  * Revision 1.7  2002/08/05 10:03:47  robertj
00048  * Cosmetic changes to normalise the usage of pragma interface/implementation.
00049  *
00050  * Revision 1.6  2001/02/09 05:16:24  robertj
00051  * Added #pragma interface for GNU C++.
00052  *
00053  * Revision 1.5  2000/08/31 08:15:32  robertj
00054  * Added support for dynamic RTP payload types in H.245 OpenLogicalChannel negotiations.
00055  *
00056  * Revision 1.4  2000/05/18 11:53:34  robertj
00057  * Changes to support doc++ documentation generation.
00058  *
00059  * Revision 1.3  2000/05/02 04:32:24  robertj
00060  * Fixed copyright notice comment.
00061  *
00062  * Revision 1.2  2000/04/05 03:17:31  robertj
00063  * Added more RTP statistics gathering and H.245 round trip delay calculation.
00064  *
00065  * Revision 1.1  1999/12/23 23:02:35  robertj
00066  * File reorganision for separating RTP from H.323 and creation of LID for VPB support.
00067  *
00068  */
00069 
00070 #ifndef __OPAL_H323RTP_H
00071 #define __OPAL_H323RTP_H
00072 
00073 #ifdef P_USE_PRAGMA
00074 #pragma interface
00075 #endif
00076 
00077 
00078 #include "rtp.h"
00079 
00080 
00081 class H225_RTPSession;
00082 
00083 class H245_TransportAddress;
00084 class H245_H2250LogicalChannelParameters;
00085 class H245_H2250LogicalChannelAckParameters;
00086 
00087 class H323Connection;
00088 class H323_RTPChannel;
00089 
00090 
00091 
00093 
00096 class H323_RTP_Session : public RTP_UserData
00097 {
00098   PCLASSINFO(H323_RTP_Session, RTP_UserData);
00099 
00108     virtual void OnTxStatistics(
00109       const RTP_Session & session   
00110     ) const;
00111 
00118     virtual void OnRxStatistics(
00119       const RTP_Session & session   
00120     ) const;
00122 
00127     virtual BOOL OnSendingPDU(
00128       const H323_RTPChannel & channel,            
00129       H245_H2250LogicalChannelParameters & param  
00130     ) const = 0;
00131 
00135     virtual void OnSendingAckPDU(
00136       const H323_RTPChannel & channel,              
00137       H245_H2250LogicalChannelAckParameters & param 
00138     ) const = 0;
00139 
00144     virtual BOOL OnReceivedPDU(
00145       H323_RTPChannel & channel,                  
00146       const H245_H2250LogicalChannelParameters & param, 
00147       unsigned & errorCode                              
00148     ) = 0;
00149 
00154     virtual BOOL OnReceivedAckPDU(
00155       H323_RTPChannel & channel,                  
00156       const H245_H2250LogicalChannelAckParameters & param 
00157     ) = 0;
00158 
00165     virtual void OnSendRasInfo(
00166       H225_RTPSession & info  
00167     ) = 0;
00169 
00170 
00171   protected:
00176     H323_RTP_Session(
00177       const H323Connection & connection  
00178     );
00180 
00181     const H323Connection & connection; 
00182 };
00183 
00184 
00187 class H323_RTP_UDP : public H323_RTP_Session
00188 {
00189   PCLASSINFO(H323_RTP_UDP, H323_RTP_Session);
00190 
00191   public:
00196     H323_RTP_UDP(
00197       const H323Connection & connection, 
00198       RTP_UDP & rtp,                     
00199       RTP_QOS * rtpqos = NULL            
00200     );
00202 
00207     virtual BOOL OnSendingPDU(
00208       const H323_RTPChannel & channel,            
00209       H245_H2250LogicalChannelParameters & param  
00210     ) const;
00211 
00215     virtual void OnSendingAckPDU(
00216       const H323_RTPChannel & channel,              
00217       H245_H2250LogicalChannelAckParameters & param 
00218     ) const;
00219 
00226     virtual BOOL OnReceivedPDU(
00227       H323_RTPChannel & channel,                  
00228       const H245_H2250LogicalChannelParameters & param, 
00229       unsigned & errorCode                              
00230     );
00231 
00238     virtual BOOL OnReceivedAckPDU(
00239       H323_RTPChannel & channel,                  
00240       const H245_H2250LogicalChannelAckParameters & param 
00241     );
00242 
00249     virtual void OnSendRasInfo(
00250       H225_RTPSession & info  
00251     );
00253 
00254   protected:
00255     virtual BOOL ExtractTransport(
00256       const H245_TransportAddress & pdu,
00257       BOOL isDataPort,
00258       unsigned & errorCode
00259     );
00260 
00261     RTP_UDP & rtp;
00262 };
00263 
00264 
00265 #endif // __OPAL_H323RTP_H
00266 
00267 

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