00001 /* 00002 * h224.h 00003 * 00004 * H.224 PDU implementation for the OpenH323 Project. 00005 * 00006 * Copyright (c) 2006 Network for Educational Technology, ETH Zurich. 00007 * Written by Hannes Friederich. 00008 * 00009 * The contents of this file are subject to the Mozilla Public License 00010 * Version 1.0 (the "License"); you may not use this file except in 00011 * compliance with the License. You may obtain a copy of the License at 00012 * http://www.mozilla.org/MPL/ 00013 * 00014 * Software distributed under the License is distributed on an "AS IS" 00015 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See 00016 * the License for the specific language governing rights and limitations 00017 * under the License. 00018 * 00019 * Contributor(s): ______________________________________. 00020 * 00021 * $Revision: 19279 $ 00022 * $Author: rjongbloed $ 00023 * $Date: 2008-01-17 04:08:34 +0000 (Thu, 17 Jan 2008) $ 00024 */ 00025 00026 #ifndef __OPAL_H224_H 00027 #define __OPAL_H224_H 00028 00029 #ifdef P_USE_PRAGMA 00030 #pragma interface 00031 #endif 00032 00033 #ifndef _PTLIB_H 00034 #include <ptlib.h> 00035 #endif 00036 00037 #include <h224/q922.h> 00038 00039 #define H224_HEADER_SIZE 6 00040 00041 #define H224_BROADCAST 0x0000 00042 00043 class H224_Frame : public Q922_Frame 00044 { 00045 PCLASSINFO(H224_Frame, Q922_Frame); 00046 00047 public: 00048 00049 H224_Frame(PINDEX clientDataSize = 254); 00050 ~H224_Frame(); 00051 00052 PBoolean IsHighPriority() const { return (GetLowOrderAddressOctet() == 0x71); } 00053 void SetHighPriority(PBoolean flag); 00054 00055 WORD GetDestinationTerminalAddress() const; 00056 void SetDestinationTerminalAddress(WORD destination); 00057 00058 WORD GetSourceTerminalAddress() const; 00059 void SetSourceTerminalAddress(WORD source); 00060 00061 // Only standard client IDs are supported at the moment 00062 BYTE GetClientID() const; 00063 void SetClientID(BYTE clientID); 00064 00065 PBoolean GetBS() const; 00066 void SetBS(PBoolean bs); 00067 00068 PBoolean GetES() const; 00069 void SetES(PBoolean es); 00070 00071 PBoolean GetC1() const; 00072 void SetC1(PBoolean c1); 00073 00074 PBoolean GetC0() const; 00075 void SetC0(PBoolean c0); 00076 00077 BYTE GetSegmentNumber() const; 00078 void SetSegmentNumber(BYTE segmentNumber); 00079 00080 BYTE *GetClientDataPtr() const { return (GetInformationFieldPtr() + H224_HEADER_SIZE); } 00081 00082 PINDEX GetClientDataSize() const { return (GetInformationFieldSize() - H224_HEADER_SIZE); } 00083 void SetClientDataSize(PINDEX size) { SetInformationFieldSize(size + H224_HEADER_SIZE); } 00084 00085 PBoolean Decode(const BYTE *data, PINDEX size); 00086 }; 00087 00088 #endif // __OPAL_H224_H 00089