jrtplib
3.7.1
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00001 /* 00002 00003 This file is a part of JRTPLIB 00004 Copyright (c) 1999-2007 Jori Liesenborgs 00005 00006 Contact: jori.liesenborgs@gmail.com 00007 00008 This library was developed at the "Expertisecentrum Digitale Media" 00009 (http://www.edm.uhasselt.be), a research center of the Hasselt University 00010 (http://www.uhasselt.be). The library is based upon work done for 00011 my thesis at the School for Knowledge Technology (Belgium/The Netherlands). 00012 00013 Permission is hereby granted, free of charge, to any person obtaining a 00014 copy of this software and associated documentation files (the "Software"), 00015 to deal in the Software without restriction, including without limitation 00016 the rights to use, copy, modify, merge, publish, distribute, sublicense, 00017 and/or sell copies of the Software, and to permit persons to whom the 00018 Software is furnished to do so, subject to the following conditions: 00019 00020 The above copyright notice and this permission notice shall be included 00021 in all copies or substantial portions of the Software. 00022 00023 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 00024 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00025 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 00026 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00027 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 00028 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 00029 IN THE SOFTWARE. 00030 00031 */ 00032 00037 #ifndef RTCPSRPACKET_H 00038 00039 #define RTCPSRPACKET_H 00040 00041 #include "rtpconfig.h" 00042 #include "rtcppacket.h" 00043 #include "rtptimeutilities.h" 00044 #include "rtpstructs.h" 00045 #if ! (defined(WIN32) || defined(_WIN32_WCE)) 00046 #include <netinet/in.h> 00047 #endif // WIN32 00048 00049 class RTCPCompoundPacket; 00050 00052 class RTCPSRPacket : public RTCPPacket 00053 { 00054 public: 00060 RTCPSRPacket(uint8_t *data,size_t datalength); 00061 ~RTCPSRPacket() { } 00062 00064 uint32_t GetSenderSSRC() const; 00065 00067 RTPNTPTime GetNTPTimestamp() const; 00068 00070 uint32_t GetRTPTimestamp() const; 00071 00073 uint32_t GetSenderPacketCount() const; 00074 00076 uint32_t GetSenderOctetCount() const; 00077 00079 int GetReceptionReportCount() const; 00080 00085 uint32_t GetSSRC(int index) const; 00086 00091 uint8_t GetFractionLost(int index) const; 00092 00097 int32_t GetLostPacketCount(int index) const; 00098 00103 uint32_t GetExtendedHighestSequenceNumber(int index) const; 00104 00109 uint32_t GetJitter(int index) const; 00110 00115 uint32_t GetLSR(int index) const; 00116 00121 uint32_t GetDLSR(int index) const; 00122 00123 #ifdef RTPDEBUG 00124 void Dump(); 00125 #endif // RTPDEBUG 00126 private: 00127 RTCPReceiverReport *GotoReport(int index) const; 00128 }; 00129 00130 inline uint32_t RTCPSRPacket::GetSenderSSRC() const 00131 { 00132 if (!knownformat) 00133 return 0; 00134 00135 uint32_t *ssrcptr = (uint32_t *)(data+sizeof(RTCPCommonHeader)); 00136 return ntohl(*ssrcptr); 00137 } 00138 00139 inline RTPNTPTime RTCPSRPacket::GetNTPTimestamp() const 00140 { 00141 if (!knownformat) 00142 return RTPNTPTime(0,0); 00143 00144 RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); 00145 return RTPNTPTime(ntohl(sr->ntptime_msw),ntohl(sr->ntptime_lsw)); 00146 } 00147 00148 inline uint32_t RTCPSRPacket::GetRTPTimestamp() const 00149 { 00150 if (!knownformat) 00151 return 0; 00152 RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); 00153 return ntohl(sr->rtptimestamp); 00154 } 00155 00156 inline uint32_t RTCPSRPacket::GetSenderPacketCount() const 00157 { 00158 if (!knownformat) 00159 return 0; 00160 RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); 00161 return ntohl(sr->packetcount); 00162 } 00163 00164 inline uint32_t RTCPSRPacket::GetSenderOctetCount() const 00165 { 00166 if (!knownformat) 00167 return 0; 00168 RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); 00169 return ntohl(sr->octetcount); 00170 } 00171 00172 inline int RTCPSRPacket::GetReceptionReportCount() const 00173 { 00174 if (!knownformat) 00175 return 0; 00176 RTCPCommonHeader *hdr = (RTCPCommonHeader *)data; 00177 return ((int)hdr->count); 00178 } 00179 00180 inline RTCPReceiverReport *RTCPSRPacket::GotoReport(int index) const 00181 { 00182 RTCPReceiverReport *r = (RTCPReceiverReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)+sizeof(RTCPSenderReport)+index*sizeof(RTCPReceiverReport)); 00183 return r; 00184 } 00185 00186 inline uint32_t RTCPSRPacket::GetSSRC(int index) const 00187 { 00188 if (!knownformat) 00189 return 0; 00190 RTCPReceiverReport *r = GotoReport(index); 00191 return ntohl(r->ssrc); 00192 } 00193 00194 inline uint8_t RTCPSRPacket::GetFractionLost(int index) const 00195 { 00196 if (!knownformat) 00197 return 0; 00198 RTCPReceiverReport *r = GotoReport(index); 00199 return r->fractionlost; 00200 } 00201 00202 inline int32_t RTCPSRPacket::GetLostPacketCount(int index) const 00203 { 00204 if (!knownformat) 00205 return 0; 00206 RTCPReceiverReport *r = GotoReport(index); 00207 uint32_t count = ((uint32_t)r->packetslost[2])|(((uint32_t)r->packetslost[1])<<8)|(((uint32_t)r->packetslost[0])<<16); 00208 if ((count&0x00800000) != 0) // test for negative number 00209 count |= 0xFF000000; 00210 int32_t *count2 = (int32_t *)(&count); 00211 return (*count2); 00212 } 00213 00214 inline uint32_t RTCPSRPacket::GetExtendedHighestSequenceNumber(int index) const 00215 { 00216 if (!knownformat) 00217 return 0; 00218 RTCPReceiverReport *r = GotoReport(index); 00219 return ntohl(r->exthighseqnr); 00220 } 00221 00222 inline uint32_t RTCPSRPacket::GetJitter(int index) const 00223 { 00224 if (!knownformat) 00225 return 0; 00226 RTCPReceiverReport *r = GotoReport(index); 00227 return ntohl(r->jitter); 00228 } 00229 00230 inline uint32_t RTCPSRPacket::GetLSR(int index) const 00231 { 00232 if (!knownformat) 00233 return 0; 00234 RTCPReceiverReport *r = GotoReport(index); 00235 return ntohl(r->lsr); 00236 } 00237 00238 inline uint32_t RTCPSRPacket::GetDLSR(int index) const 00239 { 00240 if (!knownformat) 00241 return 0; 00242 RTCPReceiverReport *r = GotoReport(index); 00243 return ntohl(r->dlsr); 00244 } 00245 00246 #endif // RTCPSRPACKET_H 00247