ccRTP
|
00001 // Copyright (C) 2001,2002,2004 Federico Montesino Pouzols <fedemp@altern.org>. 00002 // 00003 // This program is free software; you can redistribute it and/or modify 00004 // it under the terms of the GNU General Public License as published by 00005 // the Free Software Foundation; either version 2 of the License, or 00006 // (at your option) any later version. 00007 // 00008 // This program is distributed in the hope that it will be useful, 00009 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00010 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00011 // GNU General Public License for more details. 00012 // 00013 // You should have received a copy of the GNU General Public License 00014 // along with this program; if not, write to the Free Software 00015 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00016 // 00017 // As a special exception, you may use this file as part of a free software 00018 // library without restriction. Specifically, if other files instantiate 00019 // templates or use macros or inline functions from this file, or you compile 00020 // this file and link it with other files to produce an executable, this 00021 // file does not by itself cause the resulting executable to be covered by 00022 // the GNU General Public License. This exception does not however 00023 // invalidate any other reasons why the executable file might be covered by 00024 // the GNU General Public License. 00025 // 00026 // This exception applies only to the code released under the name GNU 00027 // ccRTP. If you copy code from other releases into a copy of GNU 00028 // ccRTP, as the General Public License permits, the exception does 00029 // not apply to the code that you add in this way. To avoid misleading 00030 // anyone as to the status of such modified files, you must delete 00031 // this exception notice from them. 00032 // 00033 // If you write modifications of your own for GNU ccRTP, it is your choice 00034 // whether to permit this exception to apply to your modifications. 00035 // If you do not wish that, delete this exception notice. 00036 // 00037 00044 #ifndef CCXX_RTP_QUEUEBASE_H_ 00045 #define CCXX_RTP_QUEUEBASE_H_ 00046 00047 #include <commoncpp/pointer.h> 00048 #include <ccrtp/rtppkt.h> 00049 #include <ccrtp/sources.h> 00050 00051 NAMESPACE_COMMONCPP 00052 00069 class __EXPORT AppDataUnit 00070 { 00071 public: 00072 AppDataUnit(const IncomingRTPPkt& packet, const SyncSource& src); 00073 00074 inline ~AppDataUnit() 00075 { } 00076 00080 AppDataUnit(const AppDataUnit& src); 00081 00088 AppDataUnit& 00089 operator=(const AppDataUnit& source); 00090 00094 inline PayloadType 00095 getType() const 00096 { return datablock->getPayloadType(); } 00097 00105 inline const uint8* const 00106 getData() const 00107 { return datablock->getPayload(); } 00108 00112 size_t 00113 getSize() const 00114 { return datablock->getPayloadSize(); } 00115 00119 inline const SyncSource& 00120 getSource() const 00121 { return *source; } 00122 00128 inline bool 00129 isMarked() const 00130 { return datablock->isMarked(); } 00131 00135 inline uint16 00136 getSeqNum() const 00137 { return datablock->getSeqNum(); } 00138 00142 inline uint8 00143 getContributorsCount() const 00144 { return (uint8)datablock->getCSRCsCount(); } 00145 00151 inline const uint32* 00152 getContributorsID() const 00153 { return datablock->getCSRCs(); } 00154 00155 private: 00156 Pointer<const IncomingRTPPkt> datablock; 00157 const SyncSource* source; 00158 }; 00159 00167 class __EXPORT RTPQueueBase 00168 { 00169 public: 00177 inline bool 00178 setPayloadFormat(const PayloadFormat& pf) 00179 { 00180 currentPayloadType = pf.getPayloadType(); 00181 currentRTPClockRate = pf.getRTPClockRate(); 00182 return true; 00183 } 00184 00185 inline uint32 getLocalSSRC() const 00186 { return localSSRC; } 00187 00196 inline uint32 getCurrentRTPClockRate() const 00197 { return currentRTPClockRate; } 00198 00199 inline PayloadType getCurrentPayloadType() const 00200 { return currentPayloadType; } 00201 00202 inline timeval getInitialTime() const 00203 { return initialTime; } 00204 00205 protected: 00210 RTPQueueBase(uint32 *ssrc = NULL); 00211 00212 inline void setLocalSSRC(uint32 ssrc) 00213 { localSSRC = ssrc; localSSRCNetwork = htonl(ssrc); } 00214 00215 inline uint32 getLocalSSRCNetwork() const 00216 { return localSSRCNetwork; } 00217 00218 virtual 00219 ~RTPQueueBase() 00220 { } 00221 00228 inline virtual size_t 00229 dispatchBYE(const std::string&) 00230 { return 0; } 00231 00232 inline virtual void 00233 renewLocalSSRC() 00234 { } 00235 00236 private: 00237 // local SSRC 32-bit identifier 00238 uint32 localSSRC; 00239 // SSRC in network byte order 00240 uint32 localSSRCNetwork; 00241 // RTP clock rate for the current payload type. 00242 uint32 currentRTPClockRate; 00243 // Current payload type set for outgoing packets and expected 00244 // from incoming packets. 00245 PayloadType currentPayloadType; 00246 // when the queue is created 00247 timeval initialTime; 00248 }; 00249 00255 class __EXPORT OutgoingDataQueueBase: 00256 public virtual RTPQueueBase 00257 { 00258 public: 00259 inline size_t 00260 getDefaultMaxSendSegmentSize() 00261 { return defaultMaxSendSegmentSize;} 00262 00269 inline void 00270 setMaxSendSegmentSize(size_t size) 00271 { maxSendSegmentSize = size; } 00272 00273 inline size_t 00274 getMaxSendSegmentSize() 00275 { return maxSendSegmentSize; } 00276 00277 protected: 00278 OutgoingDataQueueBase(); 00279 00280 inline virtual 00281 ~OutgoingDataQueueBase() 00282 { } 00283 00284 private: 00285 static const size_t defaultMaxSendSegmentSize; 00286 // maximum packet size before fragmenting sends. 00287 size_t maxSendSegmentSize; 00288 }; 00289 00295 class __EXPORT IncomingDataQueueBase: 00296 public virtual RTPQueueBase 00297 { 00298 public: 00299 inline size_t getDefaultMaxRecvPacketSize() const 00300 { return defaultMaxRecvPacketSize; } 00301 00302 inline size_t 00303 getMaxRecvPacketSize() const 00304 { return maxRecvPacketSize; } 00305 00316 inline void 00317 setMaxRecvPacketSize(size_t maxsize) 00318 { maxRecvPacketSize = maxsize; } 00319 00320 protected: 00321 IncomingDataQueueBase() 00322 { setMaxRecvPacketSize(getDefaultMaxRecvPacketSize()); } 00323 00324 inline virtual 00325 ~IncomingDataQueueBase() 00326 { } 00327 00328 private: 00329 static const size_t defaultMaxRecvPacketSize; 00330 // filter value for received packets length. 00331 size_t maxRecvPacketSize; 00332 }; 00333 // queuebase 00335 00336 END_NAMESPACE 00337 00338 #endif //CCXX_RTP_QUEUEBASE_H_ 00339