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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 1.11  2003/10/27 06:03:39  csoutheren
00031  * Added support for QoS
00032  *   Thanks to Henry Harrison of AliceStreet
00033  *
00034  * Revision 1.10  2003/02/07 00:27:59  robertj
00035  * Changed function to virtual to help in using external multiicast RTP stacks.
00036  *
00037  * Revision 1.9  2002/09/16 01:14:15  robertj
00038  * Added #define so can select if #pragma interface/implementation is used on
00039  *   platform basis (eg MacOS) rather than compiler, thanks Robert Monaghan.
00040  *
00041  * Revision 1.8  2002/09/03 06:19:37  robertj
00042  * Normalised the multi-include header prevention ifdef/define symbol.
00043  *
00044  * Revision 1.7  2002/08/05 10:03:47  robertj
00045  * Cosmetic changes to normalise the usage of pragma interface/implementation.
00046  *
00047  * Revision 1.6  2001/02/09 05:16:24  robertj
00048  * Added #pragma interface for GNU C++.
00049  *
00050  * Revision 1.5  2000/08/31 08:15:32  robertj
00051  * Added support for dynamic RTP payload types in H.245 OpenLogicalChannel negotiations.
00052  *
00053  * Revision 1.4  2000/05/18 11:53:34  robertj
00054  * Changes to support doc++ documentation generation.
00055  *
00056  * Revision 1.3  2000/05/02 04:32:24  robertj
00057  * Fixed copyright notice comment.
00058  *
00059  * Revision 1.2  2000/04/05 03:17:31  robertj
00060  * Added more RTP statistics gathering and H.245 round trip delay calculation.
00061  *
00062  * Revision 1.1  1999/12/23 23:02:35  robertj
00063  * File reorganision for separating RTP from H.323 and creation of LID for VPB support.
00064  *
00065  */
00066 
00067 #ifndef __OPAL_H323RTP_H
00068 #define __OPAL_H323RTP_H
00069 
00070 #ifdef P_USE_PRAGMA
00071 #pragma interface
00072 #endif
00073 
00074 
00075 #include "rtp.h"
00076 
00077 
00078 class H225_RTPSession;
00079 
00080 class H245_TransportAddress;
00081 class H245_H2250LogicalChannelParameters;
00082 class H245_H2250LogicalChannelAckParameters;
00083 
00084 class H323Connection;
00085 class H323_RTPChannel;
00086 
00087 
00088 
00090 
00093 class H323_RTP_Session : public RTP_UserData
00094 {
00095   PCLASSINFO(H323_RTP_Session, RTP_UserData);
00096 
00105     virtual void OnTxStatistics(
00106       const RTP_Session & session   
00107     ) const;
00108 
00115     virtual void OnRxStatistics(
00116       const RTP_Session & session   
00117     ) const;
00119 
00124     virtual BOOL OnSendingPDU(
00125       const H323_RTPChannel & channel,            
00126       H245_H2250LogicalChannelParameters & param  
00127     ) const = 0;
00128 
00132     virtual void OnSendingAckPDU(
00133       const H323_RTPChannel & channel,              
00134       H245_H2250LogicalChannelAckParameters & param 
00135     ) const = 0;
00136 
00141     virtual BOOL OnReceivedPDU(
00142       H323_RTPChannel & channel,                  
00143       const H245_H2250LogicalChannelParameters & param, 
00144       unsigned & errorCode                              
00145     ) = 0;
00146 
00151     virtual BOOL OnReceivedAckPDU(
00152       H323_RTPChannel & channel,                  
00153       const H245_H2250LogicalChannelAckParameters & param 
00154     ) = 0;
00155 
00162     virtual void OnSendRasInfo(
00163       H225_RTPSession & info  
00164     ) = 0;
00166 
00167 
00168   protected:
00173     H323_RTP_Session(
00174       const H323Connection & connection  
00175     );
00177 
00178     const H323Connection & connection; 
00179 };
00180 
00181 
00184 class H323_RTP_UDP : public H323_RTP_Session
00185 {
00186   PCLASSINFO(H323_RTP_UDP, H323_RTP_Session);
00187 
00188   public:
00193     H323_RTP_UDP(
00194       const H323Connection & connection, 
00195       RTP_UDP & rtp,                     
00196       RTP_QOS * rtpqos = NULL            
00197     );
00199 
00204     virtual BOOL OnSendingPDU(
00205       const H323_RTPChannel & channel,            
00206       H245_H2250LogicalChannelParameters & param  
00207     ) const;
00208 
00212     virtual void OnSendingAckPDU(
00213       const H323_RTPChannel & channel,              
00214       H245_H2250LogicalChannelAckParameters & param 
00215     ) const;
00216 
00223     virtual BOOL OnReceivedPDU(
00224       H323_RTPChannel & channel,                  
00225       const H245_H2250LogicalChannelParameters & param, 
00226       unsigned & errorCode                              
00227     );
00228 
00235     virtual BOOL OnReceivedAckPDU(
00236       H323_RTPChannel & channel,                  
00237       const H245_H2250LogicalChannelAckParameters & param 
00238     );
00239 
00246     virtual void OnSendRasInfo(
00247       H225_RTPSession & info  
00248     );
00250 
00251   protected:
00252     virtual BOOL ExtractTransport(
00253       const H245_TransportAddress & pdu,
00254       BOOL isDataPort,
00255       unsigned & errorCode
00256     );
00257 
00258     RTP_UDP & rtp;
00259 };
00260 
00261 
00262 #endif // __OPAL_H323RTP_H
00263 
00264 

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