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1 /* |
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2 * Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 // INCLUDE FILES |
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22 #include "rtpsession.h" |
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23 |
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24 |
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25 // CONSTANTS |
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26 const TInt TStream::iOffset = _FOFF( TStream, iMagicKey ); |
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27 |
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28 // Used to calculate the average size of an RTCP packet, this represents |
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29 // the fraction by which the most recent RTCP packet influences the average. |
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30 const TReal KRtcpSizeGain = ( 1.0 / 16.0 ); |
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31 const TReal KRtcpSizeGainRemainder = 1 - KRtcpSizeGain; |
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32 const TInt KRtpLimitNumberOfRecvStream=100; |
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33 |
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34 // ================= MEMBER FUNCTIONS ======================= |
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35 |
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36 // --------------------------------------------------------------------------- |
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37 // C++ default constructor can NOT contain any code, that |
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38 // might leave. |
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39 // --------------------------------------------------------------------------- |
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40 // |
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41 CRtpSession::CRtpSession( const TRtpId aSessionId, |
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42 const TUint32* aProfileRTPTimeRates, |
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43 const TBool aStandardRtp, |
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44 MRtpErrNotify& aErrNotify, |
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45 const CRtpSDES* aSdesInfo , |
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46 MRtpAsignUniqueID& aAssignUniqueID) |
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47 : |
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48 iStandardRtp( aStandardRtp ), |
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49 iSessionId( aSessionId ), |
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50 iLocalSdes( aSdesInfo ), |
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51 iNewSdes( NULL ), |
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52 // Send one SDES packet after every KDES_SEND_PACKET SR or RR |
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53 iSendSdesCounter( KSDES_SEND_PACKET ), |
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54 iRtpRecvBuf( NULL, 0 ), |
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55 iRtcpRecvBuf( NULL, 0 ), |
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56 iRtcpEnabled( EFalse ), |
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57 iFirstRTCPSent( EFalse ), |
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58 iFPortsInit( EFalse ), |
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59 iNumOfTxStreams( 0 ), |
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60 iNumOfRxStreams( 0 ), |
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61 iProfileRTPTimeRates( aProfileRTPTimeRates ), |
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62 iAverageRtcpSize( static_cast<TReal>( KAverageRtcpPacketLength ) ), |
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63 iRtcpTimeInterval( KMinRtcpTimeInterval ), |
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64 // default: the session has one participant |
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65 iTotalParticipantsSession( 1 ), |
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66 iRtpObserver( NULL ), |
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67 iRtcpObserver( NULL ), |
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68 iNonRTPDataObserver( NULL ), |
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69 iErrNotify( aErrNotify ), |
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70 iAssignUniqueID( aAssignUniqueID), |
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71 iSessionStarted( EFalse ), |
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72 iSSRCJumps( 0 ), |
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73 iRtcpErrors( 0 ), |
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74 iRtcpSendingSuspended( EFalse ), |
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75 iSeed( 0 ) |
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76 { |
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77 } |
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78 |
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79 // --------------------------------------------------------------------------- |
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80 // Symbian 2nd phase constructor can leave. |
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81 // --------------------------------------------------------------------------- |
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82 // |
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83 void CRtpSession::ConstructL( const TCreateSessionParams& aParams, |
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84 TUint& aPort, |
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85 TBool aEnableRtcp, |
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86 const TRtcpParams* aRtcpParams, |
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87 RSocketServ& aSocketServ, |
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88 RConnection& aRConn, |
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89 const RLibrary& aLibrary, |
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90 MRtpErrNotify& aErrNotify ) |
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91 { |
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92 RTP_DEBUG_DETAIL_DVALUE( "CRtpSession::ConstructL, socket size:", |
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93 aParams.iSocketBufSize ); |
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94 |
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95 // Create at least packets of size KMaxRtpPacketSize. If client |
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96 // wants to use bigger socket than that, also packets need to |
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97 // have the same size. |
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98 TInt packetSize = ( aParams.iSocketBufSize > KMaxRtpPacketSize ) ? |
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99 aParams.iSocketBufSize : KMaxRtpPacketSize; |
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100 |
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101 if ( iStandardRtp ) |
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102 { |
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103 // allocate 1 packet to RTP sending |
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104 iPktSnd = CRtpPacket::NewL( packetSize, iProfileRTPTimeRates ); |
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105 iPktSnd->SetType( ERTP ); |
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106 |
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107 // allocate 1 packet to RTP receiving |
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108 iPktRcv = CRtpPacket::NewL( packetSize, iProfileRTPTimeRates ); |
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109 iPktRcv->SetType( ERTP ); |
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110 TPtr8 aux1( iPktRcv->GetHBuf()->Des() ); |
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111 iRtpRecvBuf.Set( aux1 ); |
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112 } |
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113 else |
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114 { |
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115 // Function at ordinal 1 creates new CRtpPacketExt |
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116 TLibraryFunction entry = aLibrary.Lookup( 1 ); |
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117 |
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118 iPktExtRcv = ( MRtpPacketExt * ) entry(); //NewL() |
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119 iPktExtRcv->ConstructL( packetSize, iSessionId ); |
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120 TPtr8 aux1( iPktExtRcv->GetHBuf()->Des() ); |
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121 iRtpRecvBuf.Set( aux1 ); |
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122 |
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123 iPktExtSnd = ( MRtpPacketExt * ) entry(); //NewL() |
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124 iPktExtSnd->ConstructL( packetSize, iSessionId ); |
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125 } |
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126 |
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127 if ( aEnableRtcp ) |
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128 { |
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129 iRtcpEnabled = ETrue; |
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130 |
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131 // allocate 1 packet for RTCP sending |
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132 iPktRtcpSnd = CRtpPacket::NewL( KMaxRtcpPacketSize, |
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133 iProfileRTPTimeRates ); |
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134 |
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135 // allocate 1 packet for RTCP receiving |
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136 iPktRtcpRcv = CRtpPacket::NewL( KMaxRtcpPacketSize, |
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137 iProfileRTPTimeRates ); |
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138 TPtr8 aux2( iPktRtcpRcv->GetHBuf()->Des() ); |
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139 iRtcpRecvBuf.Set( aux2 ); |
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140 |
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141 iSndRtcpTimer = CRtpTimer::NewL( CActive::EPriorityStandard, *this ); |
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142 |
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143 InitialiseRtcp( aRtcpParams ); |
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144 } |
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145 |
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146 iCommNet = CRtpComm::NewL( aPort, aSocketServ, aRConn, aParams, aErrNotify, |
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147 aEnableRtcp ); |
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148 |
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149 iCommNet->RegisterReceivedNotify( this ); |
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150 |
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151 // instantiate RTP stream arrays |
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152 iStreamTxArray = new ( ELeave ) CArrayFixFlat<TStream>( 2 ); |
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153 iStreamRxArray = new ( ELeave ) CArrayFixFlat<TStream>( 2 ); |
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154 iSdesArray = new ( ELeave ) CArrayPtrFlat<CRtpSDES>( 2 ); |
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155 |
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156 // Assigned default SSRC |
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157 iDefaultSSRC = GenerateSSRC(); |
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158 iIsSrtp=EFalse; |
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159 } |
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160 |
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161 // --------------------------------------------------------------------------- |
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162 // Two-phased constructor. |
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163 // --------------------------------------------------------------------------- |
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164 // |
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165 CRtpSession* CRtpSession::NewL( const TCreateSessionParams& aParams, |
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166 TUint& aPort, |
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167 TBool aEnableRtcp, |
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168 const TRtcpParams* aRtcpParams, |
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169 RSocketServ& aSocketServ, |
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170 RConnection& aRConn, |
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171 const TRtpId aSessionId, |
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172 const CRtpSDES* aSdes, // application's SDES |
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173 const TUint32* aProfileRTPTimeRates, |
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174 const TBool aStandardRtp, |
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175 const RLibrary& aLibrary, |
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176 MRtpErrNotify& aErrNotify, |
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177 MRtpAsignUniqueID& aAssignUniqueID ) |
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178 { |
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179 CRtpSession* self = new ( ELeave ) CRtpSession( aSessionId, |
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180 aProfileRTPTimeRates, |
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181 aStandardRtp, aErrNotify, |
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182 aSdes,aAssignUniqueID); |
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183 CleanupStack::PushL( self ); |
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184 self->ConstructL( aParams, aPort, aEnableRtcp, aRtcpParams, aSocketServ, |
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185 aRConn, aLibrary, aErrNotify ); |
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186 CleanupStack::Pop(); // self |
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187 return self; |
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188 } |
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189 |
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190 // --------------------------------------------------------------------------- |
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191 // Destructor |
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192 // --------------------------------------------------------------------------- |
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193 // |
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194 CRtpSession::~CRtpSession() |
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195 { |
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196 RemoveAllStreams(); |
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197 delete iStreamTxArray; |
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198 delete iStreamRxArray; |
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199 if (iSdesArray) |
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200 { |
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201 iSdesArray->ResetAndDestroy(); |
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202 } |
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203 delete iSdesArray; |
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204 delete iCommNet; |
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205 if ( iRtcpEnabled ) |
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206 { |
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207 delete iSndRtcpTimer; |
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208 } |
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209 if ( iNewSdes ) |
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210 { |
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211 delete iNewSdes; |
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212 } |
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213 if ( iStandardRtp ) |
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214 { |
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215 delete iPktSnd; |
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216 delete iPktRcv; |
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217 if ( iRtcpEnabled ) |
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218 { |
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219 delete iPktRtcpSnd; |
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220 delete iPktRtcpRcv; |
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221 } |
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222 } |
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223 else |
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224 { |
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225 if (iPktExtSnd) |
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226 { |
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227 iPktExtSnd->Close(); // delete iPktExtSnd; |
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228 } |
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229 if (iPktExtRcv) |
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230 { |
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231 iPktExtRcv->Close(); // delete iPktExtRcv; |
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232 } |
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233 } |
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234 iRxSSRCArray.Close(); |
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235 } |
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236 |
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237 // --------------------------------------------------------------------------- |
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238 // TInt CRtpSession::SetRemoteAddress() |
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239 // |
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240 // --------------------------------------------------------------------------- |
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241 // |
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242 TInt CRtpSession::SetRemoteAddress( TInetAddr& aRemoteAddr ) |
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243 { |
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244 if ( !iCommNet ) |
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245 { |
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246 return KErrGeneral; |
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247 } |
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248 |
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249 TInt error( KErrNone ); |
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250 |
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251 if ( iSessionStarted ) |
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252 { |
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253 ResetTxStreamStats(); |
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254 ResetRxStreamStats(); |
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255 } |
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256 |
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257 iRemoteAddr[ERTPPort].SetAddress( aRemoteAddr.Address() ); |
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258 iRemoteAddr[ERTPPort].SetPort( aRemoteAddr.Port() ); |
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259 |
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260 error = iCommNet->SetToAddress( ERTPPort, aRemoteAddr ); |
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261 if (aRemoteAddr.Family() == KAfInet6 ) |
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262 { |
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263 iRemoteAddr[ERTPPort].SetAddress( aRemoteAddr.Ip6Address() ); |
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264 } |
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265 |
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266 if ( error == KErrNone && iRtcpEnabled ) |
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267 { |
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268 TInetAddr remoteAddr( aRemoteAddr ); |
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269 |
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270 // Set RTCP port |
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271 remoteAddr.SetPort( remoteAddr.Port() + 1 ); |
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272 |
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273 iRemoteAddr[ERTCPPort].SetAddress( remoteAddr.Address() ); |
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274 iRemoteAddr[ERTCPPort].SetPort( remoteAddr.Port() ); |
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275 if (aRemoteAddr.Family() == KAfInet6 ) |
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276 { |
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277 iRemoteAddr[ERTCPPort].SetAddress( aRemoteAddr.Ip6Address() ); |
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278 } |
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279 error = iCommNet->SetToAddress( ERTCPPort, remoteAddr ); |
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280 } |
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281 |
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282 if ( error == KErrNone && !iSessionStarted ) |
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283 { |
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284 iCommNet->RegisterReceivedNotify( this ); |
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285 } |
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286 |
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287 iRemoteAddrSet = ETrue; |
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288 return error; |
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289 } |
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290 |
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291 |
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292 // --------------------------------------------------------------------------- |
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293 // TInt CRtpSession::SetRemoteRtcpAddress() |
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294 // |
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295 // --------------------------------------------------------------------------- |
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296 // |
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297 TInt CRtpSession::SetRemoteRtcpAddress( TInetAddr& aRemoteAddr ) |
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298 { |
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299 TInt error( KErrNone ); |
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300 |
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301 if ( !iRtcpEnabled ) |
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302 { |
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303 return KErrNotSupported; |
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304 } |
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305 else |
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306 { |
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307 |
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308 iRemoteAddr[ERTCPPort].SetAddress( aRemoteAddr.Address() ); |
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309 iRemoteAddr[ERTCPPort].SetPort( aRemoteAddr.Port() ); |
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310 if (aRemoteAddr.Family() == KAfInet6 ) |
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311 { |
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312 iRemoteAddr[ERTCPPort].SetAddress( aRemoteAddr.Ip6Address() ); |
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313 } |
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314 error = iCommNet->SetToAddress( ERTCPPort, aRemoteAddr ); |
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315 } |
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316 |
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317 return error; |
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318 } |
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319 |
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320 // --------------------------------------------------------------------------- |
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321 // TInt CRtpSession::CreateReceiveStreamL() |
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322 // |
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323 // --------------------------------------------------------------------------- |
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324 // |
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325 TInt CRtpSession::CreateReceiveStreamL( TRtpId aRcvStreamId, |
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326 const TRtpPayloadType aPayloadType ) |
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327 { |
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328 if ( iNumOfRxStreams == 0 ) |
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329 { |
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330 // This is the first Rx stream |
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331 iCommNet->ConstructReceiverL(iNonRTPDataObserver!=NULL); |
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332 if (iRemoteAddrSet) |
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333 { |
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334 iCommNet->SetAcceptedFromAddress(iRemoteAddr[ERTPPort]); |
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335 } |
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336 } |
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337 |
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338 CRtpRecvStream* newReceiveStream = |
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339 CRtpRecvStream::NewL( aPayloadType, iSessionId, aRcvStreamId, |
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340 &iRtpObserver, iRtcpObserver, |
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341 iProfileRTPTimeRates, this ); |
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342 |
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343 |
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344 // store new receive stream address in stream array |
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345 TStream arrayData( aRcvStreamId, ( TUint ) newReceiveStream ); |
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346 |
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347 TInt err( AddStream( arrayData, ERxStream ) ); |
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348 |
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349 if ( err == KErrNone ) |
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350 { |
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351 iNumOfRxStreams++; |
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352 } |
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353 else |
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354 { |
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355 delete newReceiveStream; |
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356 } |
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357 |
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358 return err; |
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359 } |
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360 |
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361 // --------------------------------------------------------------------------- |
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362 // TInt CRtpSession::GetUniqueSSRC() |
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363 // |
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364 // --------------------------------------------------------------------------- |
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365 // |
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366 TRtpSSRC CRtpSession::GetUniqueSSRC() |
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367 { |
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368 TRtpSSRC ssrc( 0 ); |
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369 if ( iNumOfTxStreams != 0 ) |
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370 { |
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371 ssrc = GenerateSSRC(); |
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372 |
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373 // find if SSRC is already in use |
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374 while ( FindStreamForSSRC( ssrc ) ) |
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375 { |
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376 // if SSRC is already in use, create a new one |
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377 ssrc = GenerateSSRC(); |
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378 } |
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379 } |
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380 else // first TX stream, set transmit stream SSRC equal default SSRC |
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381 { |
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382 ssrc = iDefaultSSRC; |
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383 } |
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384 return ssrc; |
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385 } |
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386 |
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387 // --------------------------------------------------------------------------- |
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388 // TInt CRtpSession::CreateTransmitStreamL() |
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389 // |
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390 // --------------------------------------------------------------------------- |
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391 // |
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392 TInt CRtpSession::CreateTransmitStreamL( TRtpId aTranStreamId, |
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393 const TRtpPayloadType aPayloadType, |
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394 TRtpSSRC& aSSRC ) |
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395 { |
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396 if ( iNumOfTxStreams == 0 ) |
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397 { |
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398 // This is the first Tx stream |
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399 iCommNet->ConstructSenderL(iRemoteAddr[ERTPPort], iRemoteAddr[ERTCPPort]); |
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400 } |
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401 |
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402 aSSRC = GetUniqueSSRC(); |
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403 |
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404 CRtpTranStream* newTranStream = |
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405 CRtpTranStream::NewL( aPayloadType, iSessionId, aTranStreamId, aSSRC, |
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406 iRtcpObserver, iProfileRTPTimeRates ); |
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407 |
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408 // store new transmit stream address in stream array |
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409 TStream arrayData( aTranStreamId, ( TUint ) newTranStream ); |
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410 |
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411 TInt ret( AddStream( arrayData, ETxStream ) ); |
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412 |
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413 if ( ret == KErrNone ) |
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414 { |
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415 iNumOfTxStreams++; |
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416 RedistributeBandwidth(); |
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417 } |
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418 else |
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419 { |
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420 delete newTranStream; |
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421 } |
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422 |
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423 RTP_DEBUG_DETAIL_DVALUE( "Created TX Stream with Session ID = ", iSessionId ); |
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424 RTP_DEBUG_DETAIL_DVALUE( "Created TX Stream ID = ", aTranStreamId ); |
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425 RTP_DEBUG_DETAIL_DVALUE( "Created TX Stream SSRC = ", aSSRC ); |
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426 |
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427 return ret; |
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428 } |
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429 |
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430 // --------------------------------------------------------------------------- |
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431 // TInt CRtpSession::CreateTransmitStreamExtL() |
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432 // |
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433 // --------------------------------------------------------------------------- |
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434 // |
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435 TInt CRtpSession::CreateTransmitStreamExtL( TRtpId aTranStreamId, |
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436 const TRtpPayloadType aPayloadType, |
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437 const TRtpSSRC aSSRC ) |
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438 { |
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439 if ( iNumOfTxStreams == 0 ) |
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440 { |
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441 // This is the first Tx stream |
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442 iCommNet->ConstructSenderL(iRemoteAddr[ERTPPort], iRemoteAddr[ERTCPPort]); |
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443 } |
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444 |
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445 iDefaultSSRC = aSSRC; // asigned this value to the default just in case |
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446 |
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447 CRtpTranStream* newTranStream = |
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448 CRtpTranStream::NewL( aPayloadType, iSessionId, aTranStreamId, aSSRC, |
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449 iRtcpObserver, iProfileRTPTimeRates ); |
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450 |
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451 // store new receive stream address in stream array |
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452 TStream arrayData( aTranStreamId, ( TUint ) newTranStream ); |
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453 |
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454 TInt ret( AddStream( arrayData, ETxStream ) ); |
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455 |
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456 if ( ret == KErrNone ) |
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457 { |
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458 iNumOfTxStreams++; |
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459 RedistributeBandwidth(); |
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460 } |
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461 else |
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462 { |
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463 delete newTranStream; |
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464 } |
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465 |
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466 RTP_DEBUG_DETAIL_DVALUE( "Created TX Stream with Session ID = ", iSessionId ); |
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467 RTP_DEBUG_DETAIL_DVALUE( "Created TX Stream ID = ", aTranStreamId ); |
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468 RTP_DEBUG_DETAIL_DVALUE( "Created TX Stream SSRC = ", aSSRC ); |
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469 |
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470 return ret; |
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471 } |
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472 |
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473 // --------------------------------------------------------------------------- |
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474 // CRtpSession::CloseStream() |
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475 // |
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476 // --------------------------------------------------------------------------- |
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477 // |
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478 void CRtpSession::CloseStream( TRtpId aRcvStreamID ) |
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479 { |
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480 TStreamType streamType; |
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481 |
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482 // remove stream |
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483 TInt error( RemoveStream( aRcvStreamID, streamType ) ); |
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484 |
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485 if ( error == KErrNone ) |
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486 { |
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487 if ( streamType == ERxStream ) |
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488 { |
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489 iNumOfRxStreams--; |
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490 } |
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491 else //ETxStream |
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492 { |
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493 iNumOfTxStreams--; |
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494 RedistributeBandwidth(); |
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495 } |
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496 } |
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497 } |
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498 |
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499 |
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500 // --------------------------------------------------------------------------- |
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501 // CRtpSession::RedistributeBandwidths() |
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502 // |
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503 // Calculate a new bandwidth for the TX streams. |
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504 // |
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505 // iFraction is the procent reserved for RTCP. |
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506 // |
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507 // Note, the bandwith is just the theoretical bandwidth which is used |
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508 // for RTCP and has nothing to do with the real bandwith. |
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509 // So if RTCP is not enabled, it will return (no calculation needed). |
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510 // |
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511 // --------------------------------------------------------------------------- |
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512 // |
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513 void CRtpSession::RedistributeBandwidth() |
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514 { |
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515 if ( iRtcpEnabled && ( iStreamTxArray != NULL ) ) |
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516 { |
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517 |
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518 CRtpTranStream* tempTxStream; |
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519 |
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520 TInt count = iStreamTxArray->Count(); |
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521 if ( count == 0 ) |
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522 { |
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523 return; |
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524 } |
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525 TUint32 bandwidth = static_cast<TUint32>( |
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526 ( iBandWidth * ( 1 - iFraction ) ) / count ); |
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527 |
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528 for( int index = 0; index < count; index++ ) |
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529 { |
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530 tempTxStream = reinterpret_cast<CRtpTranStream*>( |
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531 ( iStreamTxArray->At( index ).GetStreamAddress() ) |
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532 ); |
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533 tempTxStream->SetBandwidth( bandwidth ); |
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534 } |
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535 } |
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536 } |
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537 |
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538 // --------------------------------------------------------------------------- |
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539 // CRtpSession::ResetRxStreamStats() |
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540 // |
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541 // --------------------------------------------------------------------------- |
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542 // |
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543 void CRtpSession::ResetRxStreamStats() |
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544 { |
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545 CRtpRecvStream* tempStream; |
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546 |
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547 TInt count = iStreamRxArray->Count(); |
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548 |
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549 for(int index = 0; index < count; index++ ) |
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550 { |
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551 tempStream = ( CRtpRecvStream* ) |
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552 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
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553 tempStream->ResetStreamStat(); |
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554 } |
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555 } |
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556 |
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557 // --------------------------------------------------------------------------- |
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558 // CRtpSession::ResetTxStreamStats() |
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559 // |
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560 // --------------------------------------------------------------------------- |
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561 // |
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562 void CRtpSession::ResetTxStreamStats() |
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563 { |
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564 CRtpTranStream* tempStream; |
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565 |
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566 TInt count = iStreamTxArray->Count(); |
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567 |
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568 for ( TInt index( 0 ); index < count; index++ ) |
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569 { |
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570 tempStream = ( CRtpTranStream* ) |
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571 ( iStreamTxArray->At( index ).GetStreamAddress() ); |
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572 tempStream->ResetStreamStat(); |
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573 } |
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574 } |
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575 |
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576 // --------------------------------------------------------------------------- |
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577 // TInt CRtpSession::SendRtpPacket() |
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578 // |
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579 // --------------------------------------------------------------------------- |
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580 // |
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581 TInt CRtpSession::SendRtpPacket( TRtpId aTranStreamId, |
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582 const TRtpSendHeader& aHeaderInfo, |
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583 const TDesC8& aPayloadData ) |
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584 { |
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585 if ( static_cast<TUint> (aPayloadData.Size()) > iCommNet->MaxSocketSize() ) |
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586 { |
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587 return KErrOverflow; |
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588 } |
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589 |
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590 // find stream |
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591 TUint streamAddress = 0; |
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592 TInt ret( FindStream( aTranStreamId, streamAddress ) ); |
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593 |
|
594 if ( ret == KErrNone ) |
|
595 { |
|
596 CRtpTranStream* tempStream = ( CRtpTranStream* ) streamAddress; |
|
597 tempStream->BuildRtpPacket( aHeaderInfo, aPayloadData, 0, EFalse, |
|
598 iPktSnd ); |
|
599 ret = iCommNet->Send( ERTPPort, iPktSnd->Des() ); |
|
600 } |
|
601 return ret; |
|
602 } |
|
603 |
|
604 // --------------------------------------------------------------------------- |
|
605 // TInt CRtpSession::SendRtpPacket() |
|
606 // |
|
607 // --------------------------------------------------------------------------- |
|
608 // |
|
609 TInt CRtpSession::SendRtpPacket( TRtpId aTranStreamId, |
|
610 const TRtpSendHeader& aHeaderInfo, |
|
611 const TDesC8& aPayloadData, |
|
612 TRequestStatus& aStatus ) |
|
613 { |
|
614 if ( static_cast<TUint>( aPayloadData.Size() ) > iCommNet->MaxSocketSize() ) |
|
615 { |
|
616 return KErrOverflow; |
|
617 } |
|
618 |
|
619 // find stream |
|
620 TUint streamAddress = 0; |
|
621 TInt ret( FindStream( aTranStreamId, streamAddress ) ); |
|
622 |
|
623 if ( ret == KErrNone ) |
|
624 { |
|
625 CRtpTranStream* tempStream = |
|
626 reinterpret_cast<CRtpTranStream*>( streamAddress ); |
|
627 tempStream->BuildRtpPacket( aHeaderInfo, aPayloadData, 0, EFalse, |
|
628 iPktSnd ); |
|
629 iCommNet->Send( ERTPPort, iPktSnd->Des(), aStatus ); |
|
630 } |
|
631 return ret; |
|
632 } |
|
633 |
|
634 // --------------------------------------------------------------------------- |
|
635 // TInt CRtpSession::SendRtpPacket() |
|
636 // |
|
637 // --------------------------------------------------------------------------- |
|
638 // |
|
639 TInt CRtpSession::SendRtpPacket( const TRtpSendHeader& aHeaderInfo, |
|
640 const TDesC8& aPayloadData ) |
|
641 { |
|
642 if ( static_cast<TUint>( aPayloadData.Size() ) > iCommNet->MaxSocketSize() ) |
|
643 { |
|
644 return KErrOverflow; |
|
645 } |
|
646 |
|
647 TInt ret( iPktExtSnd->RtpPacketBuild( aHeaderInfo, aPayloadData ) ); |
|
648 |
|
649 if( ret == KErrNone ) |
|
650 { |
|
651 ret = iCommNet->Send( ERTPPort, iPktExtSnd->Des() ); |
|
652 } |
|
653 |
|
654 return ret; |
|
655 } |
|
656 |
|
657 // --------------------------------------------------------------------------- |
|
658 // TInt CRtpSession::SendRtpPacket() |
|
659 // |
|
660 // --------------------------------------------------------------------------- |
|
661 // |
|
662 TInt CRtpSession::SendRtpPacket( const TRtpSendHeader& aHeaderInfo, |
|
663 const TDesC8& aPayloadData, |
|
664 TRequestStatus& aStatus ) |
|
665 { |
|
666 if ( static_cast<TUint>( aPayloadData.Size() ) > iCommNet->MaxSocketSize() ) |
|
667 { |
|
668 return KErrOverflow; |
|
669 } |
|
670 |
|
671 TInt ret( iPktExtSnd->RtpPacketBuild( aHeaderInfo, aPayloadData ) ); |
|
672 |
|
673 if( ret == KErrNone ) |
|
674 { |
|
675 iCommNet->Send( ERTPPort, iPktExtSnd->Des(), aStatus ); |
|
676 } |
|
677 |
|
678 |
|
679 return ret; |
|
680 } |
|
681 |
|
682 // --------------------------------------------------------------------------- |
|
683 // void CRtpSession::SendData() |
|
684 // |
|
685 // --------------------------------------------------------------------------- |
|
686 // |
|
687 void CRtpSession::SendData( TBool aUseRTPSocket, |
|
688 const TDesC8& aData, |
|
689 TRequestStatus& aStatus ) |
|
690 { |
|
691 if (aUseRTPSocket) |
|
692 { |
|
693 iCommNet->Send( ERTPPort, aData, aStatus ); |
|
694 } |
|
695 else |
|
696 { |
|
697 iCommNet->Send( ERTCPPort, aData, aStatus ); |
|
698 } |
|
699 } |
|
700 |
|
701 // --------------------------------------------------------------------------- |
|
702 // TInt CRtpSession::SendRtpPacket() |
|
703 // |
|
704 // --------------------------------------------------------------------------- |
|
705 // |
|
706 TInt CRtpSession::SendRtpPacket( TRtpId aTranStreamId, |
|
707 TRtpSequence aSequenceNum, |
|
708 const TRtpSendHeader& aHeaderInfo, |
|
709 const TDesC8& aPayloadData, |
|
710 TRequestStatus& aStatus ) |
|
711 { |
|
712 if ( static_cast<TUint>( aPayloadData.Size() ) > iCommNet->MaxSocketSize() ) |
|
713 { |
|
714 return KErrOverflow; |
|
715 } |
|
716 |
|
717 // find stream |
|
718 TUint streamAddress = 0; |
|
719 TInt ret( FindStream( aTranStreamId, streamAddress ) ); |
|
720 |
|
721 if ( ret == KErrNone ) |
|
722 { |
|
723 CRtpTranStream* tempStream = |
|
724 reinterpret_cast<CRtpTranStream*>( streamAddress ); |
|
725 tempStream->BuildRtpPacket( aHeaderInfo, aPayloadData, aSequenceNum, |
|
726 ETrue, iPktSnd ); |
|
727 iCommNet->Send( ERTPPort, iPktSnd->Des(), aStatus ); |
|
728 } |
|
729 return ret; |
|
730 } |
|
731 |
|
732 // --------------------------------------------------------------------------- |
|
733 // CRtpSession::CancelSend() |
|
734 // |
|
735 // --------------------------------------------------------------------------- |
|
736 // |
|
737 void CRtpSession::CancelSend() |
|
738 { |
|
739 iCommNet->CancelSend( ERTPPort ); |
|
740 } |
|
741 |
|
742 // --------------------------------------------------------------------------- |
|
743 // TInt CRtpSession::SendRtcpByePacket() |
|
744 // |
|
745 // --------------------------------------------------------------------------- |
|
746 // |
|
747 TInt CRtpSession::SendRtcpByePacketL( TRtpId aTranStreamId, |
|
748 const TDesC8& aReason ) |
|
749 { |
|
750 if ( !iRtcpEnabled ) |
|
751 { |
|
752 return KErrNotSupported; |
|
753 } |
|
754 if ( !iSessionStarted ) |
|
755 { |
|
756 RTP_DEBUG_DETAIL("CRtpSession::SendRtcpByePacket, Session not started" ); |
|
757 |
|
758 return KErrNotReady; |
|
759 } |
|
760 if ( aReason.Size() >= KMaxRtcpReason ) |
|
761 { |
|
762 return KErrTooBig; |
|
763 } |
|
764 |
|
765 // find stream |
|
766 TUint streamAddress( 0 ); |
|
767 TInt ret( FindStream( aTranStreamId, streamAddress ) ); |
|
768 |
|
769 if ( ret == KErrNone ) |
|
770 { |
|
771 CRtpTranStream* tempStream = |
|
772 reinterpret_cast<CRtpTranStream*>( streamAddress ); |
|
773 ret = BuildRTCPReport( tempStream, NULL ); |
|
774 if ( ret == KErrNone ) |
|
775 { |
|
776 ret = tempStream->BuildRtcpBYEPacket( aReason, iPktRtcpSnd ); |
|
777 } |
|
778 if ( ret == KErrNone ) |
|
779 { |
|
780 if(IsSrtp()) |
|
781 { |
|
782 SendSRTCPReportL(tempStream->GetLocalSSRC()); |
|
783 } |
|
784 else |
|
785 { |
|
786 SendRTCPReport(); |
|
787 } |
|
788 } |
|
789 } |
|
790 return ret; |
|
791 } |
|
792 |
|
793 // --------------------------------------------------------------------------- |
|
794 // TInt CRtpSession::SendRtcpAppPacketL() |
|
795 // |
|
796 // --------------------------------------------------------------------------- |
|
797 // |
|
798 TInt CRtpSession::SendRtcpAppPacketL( TRtpId aTranStreamId, |
|
799 const TRtcpApp& aApp ) |
|
800 { |
|
801 if ( !iRtcpEnabled ) |
|
802 { |
|
803 return KErrNotSupported; |
|
804 } |
|
805 if ( !iSessionStarted ) |
|
806 { |
|
807 RTP_DEBUG_DETAIL("CRtpSession::SendRtcpAppPacket, Session not started" ); |
|
808 |
|
809 return KErrNotReady; |
|
810 } |
|
811 if ( aApp.iAppDataLen >= KMaxRtcpAppData ) |
|
812 { |
|
813 return KErrTooBig; |
|
814 } |
|
815 |
|
816 // find stream |
|
817 TUint streamAddress = 0; |
|
818 TInt ret( FindStream( aTranStreamId, streamAddress ) ); |
|
819 |
|
820 if ( ret == KErrNone ) |
|
821 { |
|
822 CRtpTranStream* tempStream = |
|
823 reinterpret_cast<CRtpTranStream*>( streamAddress ); |
|
824 ret = BuildRTCPReport( tempStream, NULL ); |
|
825 if ( ret == KErrNone ) |
|
826 { |
|
827 ret = tempStream->BuildRtcpAPPPacket( aApp, iPktRtcpSnd ); |
|
828 } |
|
829 if ( ret == KErrNone ) |
|
830 { |
|
831 if(IsSrtp()) |
|
832 { |
|
833 SendSRTCPReportL(tempStream->GetLocalSSRC()); |
|
834 } |
|
835 else |
|
836 { |
|
837 SendRTCPReport(); |
|
838 } |
|
839 } |
|
840 } |
|
841 return ret; |
|
842 } |
|
843 |
|
844 // --------------------------------------------------------------------------- |
|
845 // TInt CRtpSession::SendRtcpSrPacketL() |
|
846 // |
|
847 // --------------------------------------------------------------------------- |
|
848 // |
|
849 TInt CRtpSession::SendRtcpSrPacketL( TRtpId aTranStreamId ) |
|
850 { |
|
851 if ( !iRtcpEnabled ) |
|
852 { |
|
853 return KErrNotSupported; |
|
854 } |
|
855 if ( !iSessionStarted ) |
|
856 { |
|
857 RTP_DEBUG_DETAIL( "CRtpSession::SendRtcpSrPacket, Session not started" ); |
|
858 return KErrNotReady; |
|
859 } |
|
860 |
|
861 TInt ret( KErrNone ); |
|
862 |
|
863 // find stream |
|
864 TUint streamAddress = 0; |
|
865 ret = FindStream( aTranStreamId, streamAddress ); |
|
866 |
|
867 if ( ret == KErrNone ) |
|
868 { |
|
869 CRtpTranStream* tempStream = |
|
870 reinterpret_cast<CRtpTranStream*>( streamAddress ); |
|
871 ret = BuildRTCPReport( tempStream, NULL ); |
|
872 if ( ret == KErrNone ) |
|
873 { |
|
874 if(IsSrtp()) |
|
875 { |
|
876 SendSRTCPReportL(tempStream->GetLocalSSRC()); |
|
877 } |
|
878 else |
|
879 { |
|
880 SendRTCPReport(); |
|
881 } |
|
882 } |
|
883 } |
|
884 return ret; |
|
885 } |
|
886 |
|
887 // --------------------------------------------------------------------------- |
|
888 // TInt CRtpSession::SendRtcpRrPacketL() |
|
889 // |
|
890 // --------------------------------------------------------------------------- |
|
891 // |
|
892 TInt CRtpSession::SendRtcpRrPacketL( TRtpId aRecvStreamId ) |
|
893 { |
|
894 RTP_DEBUG_DETAIL( "CRtpSession::SendRtcpRrPacket entry" ); |
|
895 |
|
896 if ( !iRtcpEnabled ) |
|
897 { |
|
898 return KErrNotSupported; |
|
899 } |
|
900 if ( !iSessionStarted ) |
|
901 { |
|
902 RTP_DEBUG_DETAIL( "Error: Session not started"); |
|
903 |
|
904 return KErrNotReady; |
|
905 } |
|
906 |
|
907 TInt ret( KErrNone ); |
|
908 CRtpRecvStream* tempStream( NULL ); |
|
909 // find stream |
|
910 TUint streamAddress = 0; |
|
911 ret = FindStream( aRecvStreamId, streamAddress ); |
|
912 |
|
913 if ( ret == KErrNone ) |
|
914 { |
|
915 // Make sure the stream has received packets |
|
916 tempStream = |
|
917 reinterpret_cast<CRtpRecvStream*>( streamAddress ); |
|
918 if ( tempStream->FirstPkg() ) |
|
919 { |
|
920 RTP_DEBUG_DETAIL( "Error: Must send RTP packets before RTCP" ); |
|
921 |
|
922 ret = KErrNotReady; |
|
923 } |
|
924 } |
|
925 |
|
926 if ( ret == KErrNone ) |
|
927 { |
|
928 // Build the RR version of the RTCP header |
|
929 TRtpPacketStreamParam streamParam; |
|
930 TRtpPacketIOParam initParam; |
|
931 |
|
932 initParam.TRTCP_HEADER.pt = ERTCP_RR; |
|
933 initParam.TRTCP_HEADER.sourceCount = 1; |
|
934 |
|
935 // The length of one RR block in 32-bit units is 6 |
|
936 // Added to this the source SSRC makes the total length 7 |
|
937 initParam.TRTCP_HEADER.length = 7; |
|
938 |
|
939 streamParam.TRTCP_HEADER.SSRC = iDefaultSSRC; |
|
940 |
|
941 iPktRtcpSnd->SetType( ERTCP_HEADER ); |
|
942 ret = iPktRtcpSnd->RtpPacketBuild( &streamParam, &initParam ); |
|
943 } |
|
944 |
|
945 if ( ret == KErrNone ) |
|
946 { |
|
947 // Build the RR and SDES sections, then send the packet |
|
948 tempStream->RtpStreamCreateRtcpReportSection( iPktRtcpSnd ); |
|
949 BuildSdesSection( NULL ); |
|
950 if(IsSrtp()) |
|
951 { |
|
952 SendSRTCPReportL(tempStream->GetLocalSSRC()); |
|
953 } |
|
954 else |
|
955 { |
|
956 SendRTCPReport(); |
|
957 } |
|
958 } |
|
959 return ret; |
|
960 } |
|
961 |
|
962 // --------------------------------------------------------------------------- |
|
963 // RSocket* CRtpSession::GetRtpSocket() |
|
964 // |
|
965 // --------------------------------------------------------------------------- |
|
966 // |
|
967 RSocket* CRtpSession::GetRtpSocket() |
|
968 { |
|
969 if ( iCommNet ) |
|
970 return iCommNet->GetSocket( ERTPPort ); |
|
971 else |
|
972 return NULL; |
|
973 } |
|
974 |
|
975 // --------------------------------------------------------------------------- |
|
976 // RSocket* CRtpSession::GetRtcpSocket() |
|
977 // |
|
978 // --------------------------------------------------------------------------- |
|
979 // |
|
980 RSocket* CRtpSession::GetRtcpSocket() |
|
981 { |
|
982 if ( iCommNet && iRtcpEnabled ) |
|
983 return iCommNet->GetSocket( ERTCPPort ); |
|
984 else |
|
985 return NULL; |
|
986 } |
|
987 |
|
988 // --------------------------------------------------------------------------- |
|
989 // TInt CRtpSession::GetStreamStatistics() |
|
990 // |
|
991 // --------------------------------------------------------------------------- |
|
992 // |
|
993 TInt CRtpSession::GetStreamStatistics( TRtpId aStreamId, TRtpPeerStat& aStat ) |
|
994 { |
|
995 TInt ret; |
|
996 |
|
997 // find stream |
|
998 TUint streamAddress = 0; |
|
999 TStreamType aStreamType; |
|
1000 |
|
1001 ret = FindStream( aStreamId, streamAddress, aStreamType ); |
|
1002 |
|
1003 if ( ret != KErrNone ) |
|
1004 { |
|
1005 return ret; |
|
1006 } |
|
1007 |
|
1008 if ( aStreamType == ERxStream ) |
|
1009 { |
|
1010 CRtpRecvStream* tempStream = ( CRtpRecvStream* ) streamAddress; |
|
1011 ret = tempStream->GetStreamStat( aStat ); |
|
1012 } |
|
1013 else //ETxStream |
|
1014 { |
|
1015 CRtpTranStream* tempStream = ( CRtpTranStream* ) streamAddress; |
|
1016 ret = tempStream->GetStreamStat( aStat ); |
|
1017 } |
|
1018 |
|
1019 return ret; |
|
1020 } |
|
1021 |
|
1022 // --------------------------------------------------------------------------- |
|
1023 // TInt CRtpSession::InitialiseRtcp() |
|
1024 // |
|
1025 // --------------------------------------------------------------------------- |
|
1026 // |
|
1027 TInt CRtpSession::InitialiseRtcp( const TRtcpParams* aParams ) |
|
1028 { |
|
1029 if ( !iRtcpEnabled ) |
|
1030 { |
|
1031 return KErrGeneral; |
|
1032 } |
|
1033 |
|
1034 if ( aParams == NULL ) |
|
1035 { |
|
1036 TRtcpParams params; |
|
1037 params.iSessionBWidth = KRtpDefaultBandWidth; |
|
1038 params.iRtcpFraction = KRtpDefaultRtcpFrac; |
|
1039 SetRtcpParameters( params ); |
|
1040 } |
|
1041 else |
|
1042 { |
|
1043 SetRtcpParameters( *aParams ); |
|
1044 } |
|
1045 |
|
1046 // 1000 - milliseconds per second |
|
1047 // 8 - bits in one byte |
|
1048 iRtcpTimeInterval = ( TUint ) ( 1000 * KAverageRtcpPacketLength * 8 / |
|
1049 ( iBandWidth * iFraction ) ); |
|
1050 |
|
1051 // The first RTCP interval should be half the usual amount. Hence, we |
|
1052 // divide by two here. |
|
1053 if ( iRtcpTimeInterval < KMinRtcpTimeInterval / 2 ) |
|
1054 { |
|
1055 iRtcpTimeInterval = KMinRtcpTimeInterval / 2; |
|
1056 } |
|
1057 |
|
1058 // Randomise |
|
1059 TReal rtcpTimeInterval64 = iRtcpTimeInterval * ( Random64() + 0.5 ); |
|
1060 iRtcpTimeInterval = static_cast<TUint>( rtcpTimeInterval64 ); |
|
1061 |
|
1062 RTCP_DEBUG_DETAIL_DVALUE( "CRtpSession::InitialiseRtcp - RTCP Interval(ms) = ", iRtcpTimeInterval ); |
|
1063 return KErrNone; |
|
1064 } |
|
1065 |
|
1066 // --------------------------------------------------------------------------- |
|
1067 // TInt CRtpSession::SetRtcpParameters() |
|
1068 // |
|
1069 // --------------------------------------------------------------------------- |
|
1070 // |
|
1071 TInt CRtpSession::SetRtcpParameters( const TRtcpParams& aRtcpParams ) |
|
1072 { |
|
1073 if ( !iRtcpEnabled ) |
|
1074 { |
|
1075 return KErrGeneral; |
|
1076 } |
|
1077 |
|
1078 if ( aRtcpParams.iSessionBWidth < KRtpMinimumBandWidth ) |
|
1079 { |
|
1080 iBandWidth = KRtpDefaultBandWidth; |
|
1081 } |
|
1082 else |
|
1083 { |
|
1084 iBandWidth = aRtcpParams.iSessionBWidth; |
|
1085 } |
|
1086 if ( aRtcpParams.iRtcpFraction == 0 || aRtcpParams.iRtcpFraction > 1 ) |
|
1087 { |
|
1088 iFraction = KRtpDefaultRtcpFrac; |
|
1089 } |
|
1090 else |
|
1091 { |
|
1092 iFraction = aRtcpParams.iRtcpFraction; |
|
1093 } |
|
1094 |
|
1095 RedistributeBandwidth(); |
|
1096 |
|
1097 return KErrNone; |
|
1098 } |
|
1099 |
|
1100 // --------------------------------------------------------------------------- |
|
1101 // TInt CRtpSession::RegisterRtpObserver() |
|
1102 // |
|
1103 // --------------------------------------------------------------------------- |
|
1104 // |
|
1105 TInt CRtpSession::RegisterRtpObserver( MRtpObserver& aObserver ) |
|
1106 { |
|
1107 if ( iPktExtRcv ) |
|
1108 iPktExtRcv->RegisterRtpObserver( aObserver ); |
|
1109 |
|
1110 iRtpObserver = &aObserver; |
|
1111 |
|
1112 // now update observers in receiver streams |
|
1113 CRtpRecvStream* tempStream; |
|
1114 TInt count = iStreamRxArray->Count(); |
|
1115 for(int index = 0; index < count; index++ ) |
|
1116 { |
|
1117 tempStream = ( CRtpRecvStream* ) |
|
1118 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
1119 tempStream->RegisterRtpObserver(&aObserver); |
|
1120 } |
|
1121 |
|
1122 return KErrNone; |
|
1123 } |
|
1124 |
|
1125 // --------------------------------------------------------------------------- |
|
1126 // CRtpSession::UnregisterRtpObserver() |
|
1127 // |
|
1128 // --------------------------------------------------------------------------- |
|
1129 // |
|
1130 void CRtpSession::UnregisterRtpObserver() |
|
1131 { |
|
1132 if ( iPktExtRcv ) |
|
1133 iPktExtRcv->UnregisterRtpObserver(); |
|
1134 |
|
1135 iRtpObserver = NULL; |
|
1136 |
|
1137 // now unregister receiver stream RTP observer |
|
1138 CRtpRecvStream* tempStream; |
|
1139 TInt count = iStreamRxArray->Count(); |
|
1140 |
|
1141 for(int index = 0; index < count; index++ ) |
|
1142 { |
|
1143 tempStream = ( CRtpRecvStream* ) |
|
1144 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
1145 tempStream->UnRegisterRtpObserver(); |
|
1146 } |
|
1147 } |
|
1148 |
|
1149 // --------------------------------------------------------------------------- |
|
1150 // TInt CRtpSession::RegisterRtcpObserver() |
|
1151 // |
|
1152 // --------------------------------------------------------------------------- |
|
1153 // |
|
1154 TInt CRtpSession::RegisterRtcpObserver( MRtcpObserver& aObserver ) |
|
1155 { |
|
1156 if ( !iRtcpEnabled ) |
|
1157 { |
|
1158 return KErrGeneral; |
|
1159 } |
|
1160 |
|
1161 iRtcpObserver = &aObserver; |
|
1162 |
|
1163 // now register receiver stream RTCP observers |
|
1164 CRtpRecvStream* tempRecvStream; |
|
1165 TInt count = iStreamRxArray->Count(); |
|
1166 for(int index = 0; index < count; index++ ) |
|
1167 { |
|
1168 tempRecvStream = ( CRtpRecvStream* ) |
|
1169 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
1170 tempRecvStream->RegisterRtcpObserver(aObserver); |
|
1171 } |
|
1172 |
|
1173 // now register transmit stream RTCP observers |
|
1174 CRtpTranStream* tempTxStream; |
|
1175 count = iStreamTxArray->Count(); |
|
1176 for(int index = 0; index < count; index++ ) |
|
1177 { |
|
1178 tempTxStream = ( CRtpTranStream* ) |
|
1179 ( iStreamTxArray->At( index ).GetStreamAddress() ); |
|
1180 tempTxStream->RegisterRtcpObserver(aObserver); |
|
1181 } |
|
1182 |
|
1183 return KErrNone; |
|
1184 } |
|
1185 |
|
1186 // --------------------------------------------------------------------------- |
|
1187 // CRtpSession::UnregisterRtcpObserver() |
|
1188 // |
|
1189 // --------------------------------------------------------------------------- |
|
1190 // |
|
1191 void CRtpSession::UnregisterRtcpObserver() |
|
1192 { |
|
1193 iRtcpObserver = NULL; |
|
1194 |
|
1195 // now unregister receiver stream RTCP observers |
|
1196 CRtpRecvStream* tempRecvStream; |
|
1197 TInt count = iStreamRxArray->Count(); |
|
1198 |
|
1199 for(int index = 0; index < count; index++ ) |
|
1200 { |
|
1201 tempRecvStream = ( CRtpRecvStream* ) |
|
1202 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
1203 tempRecvStream->UnRegisterRtcpObserver(); |
|
1204 } |
|
1205 |
|
1206 // now unregister transmit stream RTCP observers |
|
1207 CRtpTranStream* tempTxStream; |
|
1208 count = iStreamTxArray->Count(); |
|
1209 |
|
1210 for(int index = 0; index < count; index++ ) |
|
1211 { |
|
1212 tempTxStream = ( CRtpTranStream* ) |
|
1213 ( iStreamTxArray->At( index ).GetStreamAddress() ); |
|
1214 tempTxStream->UnRegisterRtcpObserver(); |
|
1215 } |
|
1216 |
|
1217 } |
|
1218 |
|
1219 // --------------------------------------------------------------------------- |
|
1220 // TInt CRtpSession::SetNonRTPDataObserver() |
|
1221 // |
|
1222 // --------------------------------------------------------------------------- |
|
1223 // |
|
1224 TInt CRtpSession::SetNonRTPDataObserver( MNonRTPDataObserver* aNonRTPDataObserver ) |
|
1225 { |
|
1226 iNonRTPDataObserver = aNonRTPDataObserver; |
|
1227 if (iNonRTPDataObserver) |
|
1228 { |
|
1229 iCommNet->SetNonRtpObserverFlag(ETrue); |
|
1230 } |
|
1231 else |
|
1232 { |
|
1233 iCommNet->SetNonRtpObserverFlag(EFalse); |
|
1234 } |
|
1235 return KErrNone; |
|
1236 } |
|
1237 |
|
1238 |
|
1239 |
|
1240 // --------------------------------------------------------------------------- |
|
1241 // CRtpSession::StartSession() |
|
1242 // |
|
1243 // --------------------------------------------------------------------------- |
|
1244 // |
|
1245 TInt CRtpSession::StartSession() |
|
1246 { |
|
1247 TInt result( KErrNone ); |
|
1248 if ( iNumOfRxStreams == 0 && iNumOfTxStreams == 0 ) |
|
1249 { |
|
1250 return KErrNotReady; |
|
1251 } |
|
1252 if ( iNumOfRxStreams != 0 ) |
|
1253 { |
|
1254 // Start receiving RTP streams |
|
1255 result = IssueRtpRecv(); |
|
1256 // IssueRtpRecv() returns KErrNone the first time, KErrInUse if it |
|
1257 // has been called before and KErrNotReady if the receive resources |
|
1258 // are not constructed. |
|
1259 if ( iRtcpEnabled && ( result == KErrNone ) ) |
|
1260 { |
|
1261 result = IssueRtcpRecv(); |
|
1262 } |
|
1263 // If the sockets are already active listening for packets, this is OK |
|
1264 if ( result == KErrInUse ) |
|
1265 { |
|
1266 result = KErrNone; |
|
1267 } |
|
1268 } |
|
1269 if ( iRtcpEnabled && iNumOfTxStreams != 0 && !iSndRtcpTimer->IsActive() ) |
|
1270 { |
|
1271 // Start sending RTCP packets |
|
1272 iSndRtcpTimer->After( iRtcpTimeInterval * KMicrosecondPerMillSecond ); |
|
1273 } |
|
1274 if ( result == KErrNone ) |
|
1275 { |
|
1276 iSessionStarted = ETrue; |
|
1277 } |
|
1278 return result; |
|
1279 } |
|
1280 |
|
1281 // --------------------------------------------------------------------------- |
|
1282 // CRtpSession::IssueRtpRecv() |
|
1283 // |
|
1284 // --------------------------------------------------------------------------- |
|
1285 // |
|
1286 TInt CRtpSession::IssueRtpRecv() |
|
1287 { |
|
1288 return iCommNet->Receive( ERTPPort, iRtpRecvBuf ); |
|
1289 } |
|
1290 |
|
1291 // --------------------------------------------------------------------------- |
|
1292 // CRtpSession::IssueRtcpRecv() |
|
1293 // |
|
1294 // --------------------------------------------------------------------------- |
|
1295 // |
|
1296 TInt CRtpSession::IssueRtcpRecv() |
|
1297 { |
|
1298 if ( !iRtcpEnabled ) |
|
1299 { |
|
1300 return KErrGeneral; |
|
1301 } |
|
1302 return iCommNet->Receive( ERTCPPort, iRtcpRecvBuf ); |
|
1303 } |
|
1304 |
|
1305 // --------------------------------------------------------------------------- |
|
1306 // CRtpSession::DoBuildSendRTCPReportIfNotSentL() |
|
1307 // |
|
1308 // --------------------------------------------------------------------------- |
|
1309 // |
|
1310 TBool CRtpSession::DoBuildSendRTCPReportIfNotSentL() |
|
1311 { |
|
1312 if ( !iRtcpEnabled ) |
|
1313 { |
|
1314 return EFalse; |
|
1315 } |
|
1316 TInt index( 0 ); |
|
1317 TBool reportSent( EFalse ); |
|
1318 TInt totalTxStream( iStreamTxArray->Count() ); |
|
1319 |
|
1320 for ( index = 0; index < totalTxStream; index++ ) |
|
1321 { |
|
1322 CRtpTranStream* tempStream = reinterpret_cast<CRtpTranStream*> |
|
1323 ( iStreamTxArray->At( index ).GetStreamAddress() ); |
|
1324 if ( !tempStream->SentRtcpReport() && !reportSent ) |
|
1325 { |
|
1326 // if no report has been sent, send it now |
|
1327 // totalTxStream - index - 1 makes sure method knows when this is |
|
1328 // the last RTCP report to be sent |
|
1329 if ( BuildRTCPReport( tempStream, totalTxStream - index - 1 ) |
|
1330 == KErrNone ) |
|
1331 { |
|
1332 RTP_DEBUG_DETAIL_DVALUE( "BuildSendRTCPReport: Sending SR RTCP REPORT TX stream ID = ", |
|
1333 iStreamTxArray->At( index ).GetMagicKey() ); |
|
1334 |
|
1335 if(IsSrtp()) |
|
1336 { |
|
1337 SendSRTCPReportL(tempStream->GetLocalSSRC()); |
|
1338 } |
|
1339 else |
|
1340 { |
|
1341 SendRTCPReport(); |
|
1342 } |
|
1343 } |
|
1344 else |
|
1345 { |
|
1346 RTP_DEBUG_DETAIL_DVALUE( "BuildSendRTCPReport: No report sent for TX stream ID = ", |
|
1347 iStreamTxArray->At( index ).GetMagicKey() ); |
|
1348 } |
|
1349 |
|
1350 tempStream->SetRtcpReportFlag(); |
|
1351 reportSent = ETrue; |
|
1352 |
|
1353 } |
|
1354 } |
|
1355 return reportSent; |
|
1356 } |
|
1357 |
|
1358 // --------------------------------------------------------------------------- |
|
1359 // CRtpSession::DoBuildSendRTCPReportL() |
|
1360 // |
|
1361 // --------------------------------------------------------------------------- |
|
1362 // |
|
1363 void CRtpSession::DoBuildSendRTCPReportL() |
|
1364 { |
|
1365 if ( !iRtcpEnabled ) |
|
1366 { |
|
1367 return; |
|
1368 } |
|
1369 |
|
1370 TInt index( 0 ); |
|
1371 TInt totalTxStream( iStreamTxArray->Count() ); |
|
1372 |
|
1373 for ( index = 0; index < totalTxStream; index++ ) |
|
1374 { |
|
1375 CRtpTranStream* tempStream = reinterpret_cast<CRtpTranStream*>( |
|
1376 ( iStreamTxArray->At( index ).GetStreamAddress() ) ); |
|
1377 tempStream->ResetRtcpReportFlag(); |
|
1378 |
|
1379 // totalTxStream - index - 1 makes sure method knows when this is |
|
1380 // the last RTCP report to be send |
|
1381 if ( BuildRTCPReport( tempStream, totalTxStream - index - 1 ) |
|
1382 == KErrNone ) |
|
1383 { |
|
1384 |
|
1385 RTP_DEBUG_DETAIL_DVALUE( "BuildSendRTCPReport: Sending (AFTER) SR RTCP REPORT TX stream ID = ", |
|
1386 iStreamTxArray->At( index ).GetMagicKey() ); |
|
1387 |
|
1388 if(IsSrtp()) |
|
1389 { |
|
1390 SendSRTCPReportL(tempStream->GetLocalSSRC()); |
|
1391 } |
|
1392 else |
|
1393 { |
|
1394 SendRTCPReport(); |
|
1395 } |
|
1396 } |
|
1397 else |
|
1398 { |
|
1399 RTP_DEBUG_DETAIL_DVALUE( "BuildSendRTCPReport: No report sent for TX stream ID = ", |
|
1400 iStreamTxArray->At( index ).GetMagicKey() ); |
|
1401 } |
|
1402 tempStream->SetRtcpReportFlag(); |
|
1403 } |
|
1404 } |
|
1405 |
|
1406 // --------------------------------------------------------------------------- |
|
1407 // CRtpSession::BuildSendRTCPReportL() |
|
1408 // |
|
1409 // --------------------------------------------------------------------------- |
|
1410 // |
|
1411 void CRtpSession::BuildSendRTCPReportL() |
|
1412 { |
|
1413 if ( !iRtcpEnabled ) |
|
1414 { |
|
1415 return; |
|
1416 } |
|
1417 |
|
1418 TInt totalRxStream( iStreamRxArray->Count() ); |
|
1419 TInt totalTxStream( iStreamTxArray->Count() ); |
|
1420 TBool reportSent( ETrue ); |
|
1421 |
|
1422 if ( totalTxStream > 0 ) |
|
1423 { |
|
1424 reportSent = DoBuildSendRTCPReportIfNotSentL(); |
|
1425 // if no reports were sent for any of the TX streams, reset flags and |
|
1426 // send an RTCP report this assures that if 2 or more Tx streams will |
|
1427 // not send at the same time |
|
1428 if ( !reportSent ) |
|
1429 { |
|
1430 DoBuildSendRTCPReportL(); |
|
1431 } |
|
1432 } |
|
1433 else if ( totalRxStream > 0 ) |
|
1434 { |
|
1435 |
|
1436 RTCP_DEBUG_DETAIL_DVALUE( "BuildSendRTCPReport::Sending RR RTCP REPORT sender SSRC = ", |
|
1437 iDefaultSSRC ); |
|
1438 |
|
1439 if ( BuildRTCPReport( NULL, NULL ) == KErrNone ) |
|
1440 { |
|
1441 if(IsSrtp()) |
|
1442 { |
|
1443 SendSRTCPReportL(iDefaultSSRC); |
|
1444 } |
|
1445 else |
|
1446 { |
|
1447 SendRTCPReport(); |
|
1448 } |
|
1449 } |
|
1450 } |
|
1451 else |
|
1452 { |
|
1453 // Do Nothing |
|
1454 } |
|
1455 |
|
1456 } |
|
1457 |
|
1458 // --------------------------------------------------------------------------- |
|
1459 // TInt CRtpSession::ShouldBuildEmptyRR() |
|
1460 // |
|
1461 // --------------------------------------------------------------------------- |
|
1462 // |
|
1463 TBool CRtpSession::ShouldBuildEmptyRR( CRtpTranStream* aTempTranStream ) |
|
1464 { |
|
1465 if ( !iRtcpEnabled ) |
|
1466 { |
|
1467 return EFalse; |
|
1468 } |
|
1469 |
|
1470 TBool fEmptyRR( ETrue ); |
|
1471 if ( aTempTranStream ) |
|
1472 { |
|
1473 // check if no data has been sent lately |
|
1474 if ( aTempTranStream->SentRTPPackets() ) |
|
1475 { |
|
1476 fEmptyRR = EFalse; |
|
1477 } |
|
1478 } |
|
1479 |
|
1480 // find if any receive stream has received an RTP packet |
|
1481 if ( AnyRcvStreamReceivedRtpPacket() ) |
|
1482 { |
|
1483 fEmptyRR = EFalse; |
|
1484 } |
|
1485 return fEmptyRR; |
|
1486 } |
|
1487 |
|
1488 // --------------------------------------------------------------------------- |
|
1489 // TInt CRtpSession::DetermineSourceCountAndLength() |
|
1490 // |
|
1491 // --------------------------------------------------------------------------- |
|
1492 // |
|
1493 void CRtpSession::DetermineSourceCountAndLength( |
|
1494 TInt& aSourceCount, |
|
1495 TInt& aLength, |
|
1496 TBool aRxActive[KMaxNumActiveRcvStreams] ) |
|
1497 { |
|
1498 if ( !iRtcpEnabled ) |
|
1499 { |
|
1500 return; |
|
1501 } |
|
1502 |
|
1503 TInt k( 0 ); |
|
1504 TInt numRcvStreams( iStreamRxArray->Count() ); |
|
1505 for ( k = 0; k < numRcvStreams; k++ ) |
|
1506 { |
|
1507 if ( aRxActive[k] ) |
|
1508 { |
|
1509 if ( RcvStreamReceivedRtpPacket( k ) ) |
|
1510 { |
|
1511 aSourceCount++; |
|
1512 aLength += 6; // Length of one RR block in 32-bit units |
|
1513 |
|
1514 |
|
1515 RTCP_DEBUG_DETAIL_DVALUE( "SEND: RX RR ID = ", |
|
1516 iStreamRxArray->At( k ).GetMagicKey() ); |
|
1517 RTCP_DEBUG_DETAIL_DVALUE( "SEND: RX RR SSRC = ", |
|
1518 ( ( CRtpRecvStream* )iStreamRxArray->At( k ). |
|
1519 GetStreamAddress() )->GetLocalSSRC() ); |
|
1520 |
|
1521 } |
|
1522 } |
|
1523 } |
|
1524 } |
|
1525 |
|
1526 |
|
1527 // --------------------------------------------------------------------------- |
|
1528 // TInt CRtpSession::SetParamsForFullRTCPReport() |
|
1529 // |
|
1530 // --------------------------------------------------------------------------- |
|
1531 // |
|
1532 void CRtpSession::SetParamsForFullRTCPReport( |
|
1533 CRtpTranStream* aTranStream, |
|
1534 TRtpPacketStreamParam* aStreamParam, |
|
1535 TRtpPacketIOParam* aInitParam, |
|
1536 TBool aRxActive[KMaxNumActiveRcvStreams] ) |
|
1537 { |
|
1538 if ( !iRtcpEnabled ) |
|
1539 { |
|
1540 return; |
|
1541 } |
|
1542 |
|
1543 TInt sourceCount = 0; |
|
1544 TInt length = 1; |
|
1545 |
|
1546 if ( aTranStream != NULL ) |
|
1547 { |
|
1548 if ( aTranStream->SentRTPPackets() ) |
|
1549 { |
|
1550 |
|
1551 RTCP_DEBUG_DETAIL_DVALUE( "SEND: TX SR ID = ", |
|
1552 aTranStream->GetStreamID() ); |
|
1553 RTCP_DEBUG_DETAIL_DVALUE( "SEND: TX SR SSRC = ", |
|
1554 aTranStream->GetLocalSSRC() ); |
|
1555 |
|
1556 |
|
1557 length += 5; |
|
1558 aInitParam->TRTCP_HEADER.pt = ERTCP_SR; |
|
1559 } |
|
1560 else |
|
1561 { |
|
1562 aInitParam->TRTCP_HEADER.pt = ERTCP_RR; |
|
1563 } |
|
1564 aStreamParam->TRTCP_HEADER.SSRC = aTranStream->GetLocalSSRC(); |
|
1565 } |
|
1566 else |
|
1567 { |
|
1568 aInitParam->TRTCP_HEADER.pt = ERTCP_RR; |
|
1569 aStreamParam->TRTCP_HEADER.SSRC = iDefaultSSRC; |
|
1570 } |
|
1571 |
|
1572 DetermineSourceCountAndLength( sourceCount, length, aRxActive ); |
|
1573 |
|
1574 aInitParam->TRTCP_HEADER.sourceCount = sourceCount; |
|
1575 aInitParam->TRTCP_HEADER.length = length; |
|
1576 } |
|
1577 |
|
1578 // --------------------------------------------------------------------------- |
|
1579 // TInt CRtpSession::BuildRTCPReport() |
|
1580 // |
|
1581 // --------------------------------------------------------------------------- |
|
1582 // |
|
1583 TInt CRtpSession::BuildRTCPReport( CRtpTranStream* aTempTranStream, |
|
1584 TInt aLastReport ) |
|
1585 { |
|
1586 if ( !iRtcpEnabled ) |
|
1587 { |
|
1588 return KErrGeneral; |
|
1589 } |
|
1590 |
|
1591 RTCP_DEBUG_DETAIL( "CRtpSession::BuildRTCPReport" ); |
|
1592 |
|
1593 |
|
1594 TBool activeStreams( EFalse ); |
|
1595 TRtpPacketStreamParam streamParam; |
|
1596 TRtpPacketIOParam initParam; |
|
1597 TBool rxActive[KMaxNumActiveRcvStreams]; |
|
1598 TInt numRcvStreams( iStreamRxArray->Count() ); |
|
1599 TInt k( 0 ); |
|
1600 TBool streamExists( EFalse ); |
|
1601 |
|
1602 iPktRtcpSnd->RtpPacketReset(); |
|
1603 |
|
1604 // send an SDES packet if no Tx or Rx streams are available |
|
1605 if ( aTempTranStream != NULL || numRcvStreams != NULL ) |
|
1606 { |
|
1607 streamExists = ETrue; |
|
1608 } |
|
1609 else |
|
1610 { |
|
1611 |
|
1612 RTCP_DEBUG_DETAIL( "Error: no suitable stream exists" ); |
|
1613 |
|
1614 return KErrGeneral; |
|
1615 } |
|
1616 |
|
1617 Mem::FillZ( rxActive, KMaxNumActiveRcvStreams ); |
|
1618 |
|
1619 // check which streams are active |
|
1620 for ( k = 0; k < numRcvStreams; k++ ) |
|
1621 { |
|
1622 if ( RcvStreamActive( k ) ) |
|
1623 { |
|
1624 rxActive[k] = ETrue; |
|
1625 activeStreams = ETrue; |
|
1626 } |
|
1627 else |
|
1628 { |
|
1629 rxActive[k] = EFalse; |
|
1630 } |
|
1631 } |
|
1632 |
|
1633 if ( aTempTranStream ) |
|
1634 { |
|
1635 if ( aTempTranStream->FirstPkg() ) |
|
1636 { |
|
1637 RTCP_DEBUG_DETAIL( "Error: must send RTP packets before RTCP" ); |
|
1638 |
|
1639 return KErrGeneral; |
|
1640 } |
|
1641 } |
|
1642 else |
|
1643 { |
|
1644 if ( !activeStreams ) |
|
1645 { |
|
1646 RTCP_DEBUG_DETAIL( "Error: no active receive streams found" ); |
|
1647 |
|
1648 return KErrGeneral; |
|
1649 } |
|
1650 } |
|
1651 |
|
1652 if ( streamExists ) |
|
1653 { |
|
1654 TBool fEmptyRR( ShouldBuildEmptyRR( aTempTranStream ) ); |
|
1655 |
|
1656 if ( fEmptyRR == EFalse ) |
|
1657 { |
|
1658 // find which stream are active and send report accordingly |
|
1659 SetParamsForFullRTCPReport( aTempTranStream, &streamParam, |
|
1660 &initParam, rxActive ); |
|
1661 // first build the standard RTCP header |
|
1662 iPktRtcpSnd->SetType( ERTCP_HEADER ); |
|
1663 iPktRtcpSnd->RtpPacketBuild( &streamParam, &initParam ); |
|
1664 |
|
1665 // always send report about itself (stream) and all the other |
|
1666 // active receiving streams |
|
1667 BuildSrSection( aTempTranStream ); |
|
1668 BuildRrSection( numRcvStreams, rxActive, aLastReport ); |
|
1669 } |
|
1670 else |
|
1671 { |
|
1672 // build empty RR packet if we have inactive Tx and/or Rx streams |
|
1673 BuildEmptyRr( aTempTranStream ); |
|
1674 } |
|
1675 } |
|
1676 |
|
1677 BuildSdesSection( aTempTranStream ); |
|
1678 |
|
1679 return KErrNone; |
|
1680 } |
|
1681 |
|
1682 // --------------------------------------------------------------------------- |
|
1683 // CRtpSession::BuildSrSection() |
|
1684 // |
|
1685 // --------------------------------------------------------------------------- |
|
1686 // |
|
1687 void CRtpSession::BuildSrSection( CRtpTranStream* aTempTranStream ) |
|
1688 { |
|
1689 if ( !iRtcpEnabled ) |
|
1690 { |
|
1691 return; |
|
1692 } |
|
1693 |
|
1694 if ( aTempTranStream ) |
|
1695 { |
|
1696 if ( aTempTranStream->SentRTPPackets() ) |
|
1697 { |
|
1698 RTCP_DEBUG_DETAIL( "SEND: Sent SR packet" ); |
|
1699 |
|
1700 aTempTranStream->RtpStreamCreateRtcpReportSection( iPktRtcpSnd ); |
|
1701 aTempTranStream->SetSentRTPPackets( EFalse ); |
|
1702 } |
|
1703 } |
|
1704 } |
|
1705 |
|
1706 // --------------------------------------------------------------------------- |
|
1707 // TInt CRtpSession::BuildRrSection() |
|
1708 // |
|
1709 // --------------------------------------------------------------------------- |
|
1710 // |
|
1711 void CRtpSession::BuildRrSection( TInt aNumRcvStreams, |
|
1712 TBool aRxActive[KMaxNumActiveRcvStreams], |
|
1713 TInt aLastReport ) |
|
1714 { |
|
1715 if ( !iRtcpEnabled ) |
|
1716 { |
|
1717 return; |
|
1718 } |
|
1719 |
|
1720 for ( TInt k = 0; k < aNumRcvStreams; k++ ) |
|
1721 { |
|
1722 if ( aRxActive[k] && RcvStreamReceivedRtpPacket( k ) ) |
|
1723 { |
|
1724 // get stream with the indicated index value |
|
1725 CRtpRecvStream* tempRcvStream = GetRcvStreamByIndex( k ); |
|
1726 |
|
1727 RTCP_DEBUG_DETAIL( "SEND: Sent RR packet" ); |
|
1728 |
|
1729 |
|
1730 tempRcvStream->RtpStreamCreateRtcpReportSection( iPktRtcpSnd ); |
|
1731 // do not set the receive stream until this is the last RTCP |
|
1732 // report to be sent |
|
1733 if ( !aLastReport ) |
|
1734 { |
|
1735 tempRcvStream->SetReceivedRTPPackets( EFalse ); |
|
1736 } |
|
1737 } |
|
1738 } |
|
1739 } |
|
1740 |
|
1741 // --------------------------------------------------------------------------- |
|
1742 // CRtpSession::BuildEmptyRr() |
|
1743 // |
|
1744 // --------------------------------------------------------------------------- |
|
1745 // |
|
1746 void CRtpSession::BuildEmptyRr( CRtpTranStream* aTempTranStream ) |
|
1747 { |
|
1748 if ( !iRtcpEnabled ) |
|
1749 { |
|
1750 return; |
|
1751 } |
|
1752 |
|
1753 TRtpPacketStreamParam streamParam; |
|
1754 TRtpPacketIOParam initParam; |
|
1755 |
|
1756 initParam.TRTCP_HEADER.pt = ERTCP_RR; |
|
1757 initParam.TRTCP_HEADER.sourceCount = 0; |
|
1758 initParam.TRTCP_HEADER.length = 1; |
|
1759 |
|
1760 if ( aTempTranStream == NULL ) //No Tx stream |
|
1761 { |
|
1762 streamParam.TRTCP_HEADER.SSRC = iDefaultSSRC; |
|
1763 } |
|
1764 else |
|
1765 { |
|
1766 streamParam.TRTCP_HEADER.SSRC = aTempTranStream->GetLocalSSRC(); |
|
1767 } |
|
1768 |
|
1769 iPktRtcpSnd->SetType( ERTCP_HEADER ); |
|
1770 iPktRtcpSnd->RtpPacketBuild( &streamParam, &initParam ); |
|
1771 |
|
1772 |
|
1773 RTCP_DEBUG_DETAIL_DVALUE( "SEND: Sent EMPTY RR report sender SSRC = ", |
|
1774 streamParam.TRTCP_HEADER.SSRC ); |
|
1775 |
|
1776 } |
|
1777 |
|
1778 // --------------------------------------------------------------------------- |
|
1779 // CRtpSession::BuildSdesSection() |
|
1780 // |
|
1781 // --------------------------------------------------------------------------- |
|
1782 // |
|
1783 void CRtpSession::BuildSdesSection( CRtpTranStream* aTempTranStream ) |
|
1784 { |
|
1785 if ( !iRtcpEnabled ) |
|
1786 { |
|
1787 return; |
|
1788 } |
|
1789 |
|
1790 TBool fCNameOnly( EFalse ); |
|
1791 |
|
1792 // start counter, when it equals 5, send full SDES information, |
|
1793 // other wise send CNAME only |
|
1794 iSendSdesCounter++; |
|
1795 |
|
1796 // create SDES packet |
|
1797 if ( iSendSdesCounter >= KSDES_SEND_PACKET ) |
|
1798 { |
|
1799 fCNameOnly = EFalse; |
|
1800 |
|
1801 |
|
1802 RTCP_DEBUG_DETAIL( "SEND: Sent FULL SDES packet" ); |
|
1803 |
|
1804 |
|
1805 iSendSdesCounter = 0; |
|
1806 |
|
1807 if ( !aTempTranStream ) //No Tx stream |
|
1808 { |
|
1809 CreateSDES( fCNameOnly, iDefaultSSRC ); |
|
1810 } |
|
1811 else |
|
1812 { |
|
1813 CreateSDES( fCNameOnly, aTempTranStream->GetLocalSSRC() ); |
|
1814 } |
|
1815 } |
|
1816 else |
|
1817 { |
|
1818 fCNameOnly = ETrue; |
|
1819 |
|
1820 |
|
1821 RTCP_DEBUG_DETAIL( "SEND: Sent only CNAME SDES packet" ); |
|
1822 |
|
1823 |
|
1824 if ( !aTempTranStream ) //No Tx stream |
|
1825 { |
|
1826 CreateSDES( fCNameOnly, iDefaultSSRC ); |
|
1827 } |
|
1828 else |
|
1829 { |
|
1830 CreateSDES( fCNameOnly, aTempTranStream->GetLocalSSRC() ); |
|
1831 } |
|
1832 } |
|
1833 |
|
1834 |
|
1835 if ( !aTempTranStream ) //No Tx stream |
|
1836 { |
|
1837 RTCP_DEBUG_DETAIL( "SEND: SENDING NEW RTCP REPORT ONLY RR" ); |
|
1838 |
|
1839 } |
|
1840 else |
|
1841 { |
|
1842 RTCP_DEBUG_DETAIL_DVALUE( "SEND: SENDING NEW RTCP REPORT SR and RR(?) for TX Stream ID = ", |
|
1843 aTempTranStream->GetStreamID() ); |
|
1844 |
|
1845 } |
|
1846 } |
|
1847 |
|
1848 // --------------------------------------------------------------------------- |
|
1849 // CRtpSession::SendRTCPReport() |
|
1850 // |
|
1851 // --------------------------------------------------------------------------- |
|
1852 // |
|
1853 void CRtpSession::SendRTCPReport() |
|
1854 { |
|
1855 if ( !iRtcpEnabled ) |
|
1856 { |
|
1857 return; |
|
1858 } |
|
1859 if ( iCommNet->Send( ERTCPPort, iPktRtcpSnd->Des() ) == KErrDisconnected ) |
|
1860 { |
|
1861 RTCP_DEBUG_DETAIL( "Fail to send RTCP packet due to network disconnected" ); |
|
1862 |
|
1863 ( void ) StopRtcpSending(); |
|
1864 } |
|
1865 |
|
1866 // update RTCP average packet size |
|
1867 AverageRtcpSize( iPktRtcpSnd->Size() ); |
|
1868 iPktRtcpSnd->RtpPacketReset(); |
|
1869 } |
|
1870 |
|
1871 // --------------------------------------------------------------------------- |
|
1872 // CRtpSession::CreateSDES() |
|
1873 // |
|
1874 // --------------------------------------------------------------------------- |
|
1875 // |
|
1876 void CRtpSession::CreateSDES( TInt aFCNameOnly, TRtpSSRC aSSRC ) |
|
1877 { |
|
1878 if ( !iRtcpEnabled ) |
|
1879 { |
|
1880 return; |
|
1881 } |
|
1882 |
|
1883 TInt paddingSize = 0; |
|
1884 |
|
1885 // build RTCP SDES packet header |
|
1886 |
|
1887 TRtpPacketStreamParam streamParam; |
|
1888 TRtpPacketIOParam initParam; |
|
1889 |
|
1890 TInt theIndex = 0; |
|
1891 TInt sourceCount = 1; |
|
1892 TInt length = 0; |
|
1893 TInt sdesCount = 0; |
|
1894 |
|
1895 initParam.TRTCP_HEADER.pt = ERTCP_SDES; |
|
1896 |
|
1897 // get number of chunks in this SDES report |
|
1898 if ( aFCNameOnly ) |
|
1899 { |
|
1900 // send only the CNAME information |
|
1901 for ( theIndex = 0; theIndex <= ERTCP_SDES_CNAME; theIndex++ ) |
|
1902 { |
|
1903 if ( iLocalSdes->iSDESItemsSize[theIndex] != 0 ) |
|
1904 { |
|
1905 sdesCount++; |
|
1906 } |
|
1907 // calculate size of all SDES items in bytes |
|
1908 length += iLocalSdes->iSDESItemsSize[theIndex]; |
|
1909 } |
|
1910 } |
|
1911 else |
|
1912 { |
|
1913 // send FULL SDES information |
|
1914 for ( theIndex = 0; theIndex < ERTCP_NUM_OF_SDES_ITEMS; theIndex++ ) |
|
1915 { |
|
1916 if ( iLocalSdes->iSDESItemsSize[theIndex] != 0 ) |
|
1917 { |
|
1918 sdesCount++; |
|
1919 } |
|
1920 // calculate size of all SDES items in bytes |
|
1921 length += iLocalSdes->iSDESItemsSize[theIndex]; |
|
1922 } |
|
1923 } |
|
1924 |
|
1925 // sdesCount*2 is the bytes for 8-bit type field and octet count |
|
1926 if ( ( sdesCount * 2 + length + 1 ) % 4 == 0 ) |
|
1927 { |
|
1928 // multiples of 4 bytes, no padding is needed |
|
1929 // Calcultate total number of 32 bit words in SDES packet, |
|
1930 // including end of list null octet |
|
1931 length = ( sdesCount * 2 + length + 1 ) / 4 + sourceCount; |
|
1932 } |
|
1933 else |
|
1934 { |
|
1935 // not multiples of 4 bytes, padding is needed |
|
1936 paddingSize = 4 - ( sdesCount * 2 + length + 1 ) % 4; |
|
1937 length = ( sdesCount * 2 + length + 1 ) / 4 + 1 + sourceCount; |
|
1938 } |
|
1939 |
|
1940 initParam.TRTCP_HEADER.sourceCount = sourceCount; |
|
1941 initParam.TRTCP_HEADER.length = length; |
|
1942 |
|
1943 iPktRtcpSnd->SetType( ERTCP_HEADER ); |
|
1944 iPktRtcpSnd->RtpPacketBuild( &streamParam, &initParam ); |
|
1945 |
|
1946 streamParam.TRTCP_SDES.SSRC = aSSRC; |
|
1947 |
|
1948 if ( aFCNameOnly ) |
|
1949 { |
|
1950 for ( theIndex = 0; theIndex <= ERTCP_SDES_CNAME; theIndex++ ) |
|
1951 { |
|
1952 initParam.TRTCP_SDES.sdesItems[theIndex] = |
|
1953 iLocalSdes->iSDESItems[theIndex]; |
|
1954 initParam.TRTCP_SDES.sdesItemsSize[theIndex] = |
|
1955 iLocalSdes->iSDESItemsSize[theIndex]; |
|
1956 } |
|
1957 |
|
1958 // set other sdes item sizes to zero |
|
1959 for ( theIndex = ERTCP_SDES_CNAME + 1; |
|
1960 theIndex < ERTCP_NUM_OF_SDES_ITEMS; theIndex++ ) |
|
1961 { |
|
1962 initParam.TRTCP_SDES.sdesItemsSize[theIndex] = 0; |
|
1963 } |
|
1964 } |
|
1965 else |
|
1966 { |
|
1967 for ( theIndex = 0; theIndex < ERTCP_NUM_OF_SDES_ITEMS; theIndex++ ) |
|
1968 { |
|
1969 initParam.TRTCP_SDES.sdesItems[theIndex] = |
|
1970 iLocalSdes->iSDESItems[theIndex]; |
|
1971 initParam.TRTCP_SDES.sdesItemsSize[theIndex] = |
|
1972 iLocalSdes->iSDESItemsSize[theIndex]; |
|
1973 } |
|
1974 } |
|
1975 |
|
1976 initParam.TRTCP_SDES.paddingSize = paddingSize; |
|
1977 iPktRtcpSnd->SetType( ERTCP_SDES ); |
|
1978 iPktRtcpSnd->RtpPacketBuild( &streamParam, &initParam ); |
|
1979 |
|
1980 RTCP_DEBUG_DETAIL( "SEND: Sending SDES message as" ); |
|
1981 for ( TInt k = 0; k <= ERTCP_SDES_CNAME; k++ ) |
|
1982 { |
|
1983 RTCP_DEBUG_DETAIL( initParam.TRTCP_SDES.sdesItems[k] ); |
|
1984 } |
|
1985 |
|
1986 |
|
1987 } |
|
1988 |
|
1989 // --------------------------------------------------------------------------- |
|
1990 // TRtpRtcpEnum CRtpSession::ProcessRTCPReportSection() |
|
1991 // |
|
1992 // --------------------------------------------------------------------------- |
|
1993 // |
|
1994 TRtpRtcpEnum CRtpSession::ProcessOneRTCPReportSectionL( |
|
1995 const TRtpPacketIOParam& aExtractParam, |
|
1996 TRtpSSRC aSourceSSRC ) |
|
1997 { |
|
1998 if ( !iRtcpEnabled ) |
|
1999 { |
|
2000 return ERTCP_PACKET_ERROR; |
|
2001 } |
|
2002 |
|
2003 TRtpRtcpEnum parseResult( ERTCP_NO_ERROR ); |
|
2004 iPktRtcpRcv->SetType( aExtractParam.TRTCP_HEADER.pt ); |
|
2005 |
|
2006 // handle compound packets |
|
2007 switch( iPktRtcpRcv->Type() ) |
|
2008 { |
|
2009 case ERTCP_SDES: |
|
2010 parseResult = ProcessSDESSectionL( aSourceSSRC ); |
|
2011 |
|
2012 |
|
2013 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Parsed SDES Info source SSRC ", aSourceSSRC ); |
|
2014 |
|
2015 |
|
2016 break; |
|
2017 |
|
2018 case ERTCP_BYE: |
|
2019 parseResult = ProcessBYESectionL(); |
|
2020 |
|
2021 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Parsed BYE Info source SSRC ", aSourceSSRC ); |
|
2022 |
|
2023 |
|
2024 if ( parseResult == ERTCP_FOUND_RXSTREAM ) |
|
2025 { |
|
2026 return ERTCP_FOUND_RXSTREAM; |
|
2027 } |
|
2028 break; |
|
2029 |
|
2030 case ERTCP_APP: |
|
2031 parseResult = ProcessAPPSectionL( aExtractParam.TRTCP_HEADER.length, |
|
2032 aExtractParam.TRTCP_HEADER.sourceCount ); |
|
2033 |
|
2034 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Parsed APP Info source SSRC ", aSourceSSRC ); |
|
2035 |
|
2036 |
|
2037 if ( parseResult == ERTCP_FOUND_RXSTREAM ) |
|
2038 { |
|
2039 return ERTCP_FOUND_RXSTREAM; |
|
2040 } |
|
2041 break; |
|
2042 |
|
2043 case ERTCP_SR: |
|
2044 |
|
2045 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Received RTCP_SR, sender SSRC ", aSourceSSRC ); |
|
2046 |
|
2047 |
|
2048 parseResult = ProcessSRSectionL( |
|
2049 aExtractParam.TRTCP_HEADER.sourceCount ); |
|
2050 break; |
|
2051 |
|
2052 case ERTCP_RR: |
|
2053 |
|
2054 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Received RTCP_RR, sender SSRC ", aSourceSSRC ); |
|
2055 |
|
2056 |
|
2057 // update average RTCP report size |
|
2058 AverageRtcpSize( iPktRtcpRcv->Size() ); |
|
2059 |
|
2060 if ( aExtractParam.TRTCP_HEADER.sourceCount == 0 ) |
|
2061 { |
|
2062 // this is for the special case where we have an empty RR |
|
2063 // section (RC=0) |
|
2064 |
|
2065 RTCP_DEBUG_DETAIL( "RECEIVE: Empty RR Report" ); |
|
2066 |
|
2067 if ( iRtcpObserver ) |
|
2068 { |
|
2069 iRtcpObserver->RrReceived( iSessionId, iDefaultSSRC ); |
|
2070 } |
|
2071 // expect an SDES after the empty RR |
|
2072 parseResult = ERTCP_PACKET_MORE; |
|
2073 } |
|
2074 else |
|
2075 { |
|
2076 // parse all RR reports |
|
2077 parseResult = ProcessRRSectionL( |
|
2078 aExtractParam.TRTCP_HEADER.sourceCount ); |
|
2079 } |
|
2080 break; |
|
2081 |
|
2082 default: |
|
2083 parseResult = ERTCP_PACKET_ERROR; |
|
2084 break; |
|
2085 } // switch |
|
2086 return parseResult; |
|
2087 } |
|
2088 |
|
2089 // --------------------------------------------------------------------------- |
|
2090 // TRtpRtcpEnum CRtpSession::ProcessRTCPReportL() |
|
2091 // |
|
2092 // --------------------------------------------------------------------------- |
|
2093 // |
|
2094 TRtpRtcpEnum CRtpSession::ProcessRTCPReportL() |
|
2095 { |
|
2096 if ( !iRtcpEnabled ) |
|
2097 { |
|
2098 return ERTCP_PACKET_ERROR; |
|
2099 } |
|
2100 |
|
2101 TRtpPacketStreamParam streamParam; |
|
2102 TRtpPacketIOParam extractParam; |
|
2103 TRtpRtcpEnum parseResult( ERTCP_NO_ERROR ); |
|
2104 TRtpSSRC sourceSSRC( NULL ); |
|
2105 TInt iPacketLength( 0 ); |
|
2106 TBool bHeader( ETrue ); |
|
2107 TBool bContinue = ETrue; |
|
2108 |
|
2109 // set packet pointer to the beginning |
|
2110 iPktRtcpRcv->RtpPacketResetPtr(); |
|
2111 |
|
2112 /* All RTCP reports are compound packets, consisting of at least: |
|
2113 * - an SR section (potentially containing RR sections) or an RR section |
|
2114 * - an SDES |
|
2115 * In addition, the packet may contain one APP or BYE section. |
|
2116 * This loop processes one section at a time. |
|
2117 */ |
|
2118 while ( bContinue ) |
|
2119 { |
|
2120 // parse RTCP packet header |
|
2121 iPktRtcpRcv->SetType( ERTCP_HEADER ); |
|
2122 // Get SSRC of packet sender for this report |
|
2123 // (This operation does not move the packet pointer) |
|
2124 sourceSSRC = iPktRtcpRcv->RtpPacketGetSSRC(); |
|
2125 parseResult = iPktRtcpRcv->RtpPacketProcessL( |
|
2126 &streamParam, &extractParam ); |
|
2127 |
|
2128 if ( parseResult == ERTCP_PACKET_ERROR || |
|
2129 parseResult == ERTCP_NO_ERROR ) |
|
2130 { |
|
2131 return parseResult; |
|
2132 } |
|
2133 |
|
2134 /** |
|
2135 * The payload type field of the first RTCP packet in a compound packet |
|
2136 * must be equal to SR or RR |
|
2137 **/ |
|
2138 if( bHeader && ( extractParam.TRTCP_HEADER.pt != ERTCP_SR && |
|
2139 extractParam.TRTCP_HEADER.pt != ERTCP_RR ) ) |
|
2140 { |
|
2141 return ERTCP_PACKET_ERROR; |
|
2142 } |
|
2143 |
|
2144 if( bHeader ) |
|
2145 { |
|
2146 /** |
|
2147 * The padding bit should be zero for for the first packet of a |
|
2148 * compound RTCP packet because padding should only be applied, |
|
2149 * if it is needed, to the last packet [RFC3550] |
|
2150 **/ |
|
2151 if( extractParam.TRTP.padding != 0 ) |
|
2152 { |
|
2153 return ERTCP_PACKET_ERROR; |
|
2154 } |
|
2155 else |
|
2156 { |
|
2157 bHeader = EFalse; |
|
2158 } |
|
2159 } |
|
2160 |
|
2161 parseResult = ProcessOneRTCPReportSectionL( extractParam, sourceSSRC ); |
|
2162 |
|
2163 if ( parseResult == ERTCP_FOUND_RXSTREAM ) |
|
2164 { |
|
2165 return ERTCP_FOUND_RXSTREAM; |
|
2166 } |
|
2167 |
|
2168 /** |
|
2169 * The length fields of the individual RTCP packets must add |
|
2170 * up to the overall length of the compound RTCP packet as |
|
2171 * received. [RFC3550] |
|
2172 **/ |
|
2173 if ( parseResult != ERTCP_PACKET_MORE ) |
|
2174 { |
|
2175 TInt iTruePacketLength = iPktRtcpRcv->Size(); |
|
2176 |
|
2177 iPacketLength += ( ( extractParam.TRTCP_HEADER.length + 1 ) * 4 ); |
|
2178 |
|
2179 if ( iPacketLength != iTruePacketLength ) |
|
2180 { |
|
2181 return ERTCP_PACKET_ERROR; |
|
2182 } |
|
2183 } |
|
2184 else //if( parseResult != ERTCP_NO_ERROR) |
|
2185 { |
|
2186 //Get the packet length and convert the 8 bit value to 32 bit |
|
2187 iPacketLength += ( ( extractParam.TRTCP_HEADER.length + 1 ) * 4 ); |
|
2188 } |
|
2189 |
|
2190 |
|
2191 if ( parseResult == ERTCP_PACKET_ERROR || |
|
2192 parseResult == ERTCP_NO_ERROR ) |
|
2193 { |
|
2194 return parseResult; |
|
2195 } |
|
2196 } // for loop |
|
2197 |
|
2198 // We should never get here |
|
2199 return ERTCP_NO_ERROR; |
|
2200 } |
|
2201 |
|
2202 // --------------------------------------------------------------------------- |
|
2203 // TRtpRtcpEnum CRtpSession::ProcessSRSection() |
|
2204 // |
|
2205 // --------------------------------------------------------------------------- |
|
2206 // |
|
2207 TRtpRtcpEnum CRtpSession::ProcessSRSectionL( TInt aSourceCount ) |
|
2208 { |
|
2209 if ( !iRtcpEnabled ) |
|
2210 { |
|
2211 return ERTCP_PACKET_ERROR; |
|
2212 } |
|
2213 |
|
2214 TRtpRtcpEnum parseResult( ERTCP_NO_ERROR ); |
|
2215 CRtpStream* stream; |
|
2216 TRtpSSRC tempSSRC( NULL ); |
|
2217 TUint streamAddress( 0 ); |
|
2218 TStreamType streamType; |
|
2219 TInt ret( 0 ); |
|
2220 |
|
2221 // update average RTCP report size |
|
2222 AverageRtcpSize( iPktRtcpRcv->Size() ); |
|
2223 |
|
2224 // Get SSRC of SR packet, or SSRC_1 in RR Packet |
|
2225 tempSSRC = iPktRtcpRcv->RtpPacketGetSSRC(); |
|
2226 ret = MatchSSRCToStream( streamAddress, tempSSRC, streamType ); |
|
2227 |
|
2228 if ( ret != KErrNone ) |
|
2229 { |
|
2230 return ERTCP_PACKET_ERROR; |
|
2231 } |
|
2232 if ( streamType == ERxStream ) |
|
2233 { |
|
2234 stream = ( CRtpRecvStream* ) streamAddress; |
|
2235 } |
|
2236 else //ETxStream |
|
2237 { |
|
2238 stream = ( CRtpTranStream* ) streamAddress; |
|
2239 } |
|
2240 if ( stream == NULL ) |
|
2241 { |
|
2242 return ERTCP_PACKET_ERROR; |
|
2243 } |
|
2244 parseResult = stream->RtpStreamProcessRtcpReportSectionL( iPktRtcpRcv ); |
|
2245 if ( parseResult == ERTCP_PACKET_ERROR || |
|
2246 parseResult == ERTCP_NO_ERROR ) |
|
2247 { |
|
2248 return parseResult; |
|
2249 } |
|
2250 |
|
2251 |
|
2252 RTCP_DEBUG_DETAIL( "RECEIVE: Parsing SR Report source SSRC secion" ); |
|
2253 |
|
2254 |
|
2255 if ( aSourceCount > 0 ) |
|
2256 { |
|
2257 iPktRtcpRcv->SetType( ERTCP_RR ); |
|
2258 parseResult = ProcessRRSectionL( aSourceCount ); |
|
2259 } |
|
2260 return parseResult; |
|
2261 } |
|
2262 |
|
2263 // --------------------------------------------------------------------------- |
|
2264 // TRtpRtcpEnum CRtpSession::ProcessRRSection() |
|
2265 // |
|
2266 // --------------------------------------------------------------------------- |
|
2267 // |
|
2268 TRtpRtcpEnum CRtpSession::ProcessRRSectionL( TInt aSourceCount ) |
|
2269 { |
|
2270 if ( !iRtcpEnabled ) |
|
2271 { |
|
2272 return ERTCP_PACKET_ERROR; |
|
2273 } |
|
2274 |
|
2275 TRtpRtcpEnum parseResult( ERTCP_NO_ERROR ); |
|
2276 CRtpStream* stream; |
|
2277 TRtpSSRC tempSSRC( NULL ); |
|
2278 TUint streamAddress( 0 ); |
|
2279 TStreamType streamType; |
|
2280 TBool bExit( EFalse ); |
|
2281 TInt ret( 0 ); |
|
2282 |
|
2283 while ( aSourceCount && !bExit ) |
|
2284 { |
|
2285 // extract SSRC_X of RR packet in SR Report packet |
|
2286 tempSSRC = iPktRtcpRcv->RtpPacketGetSSRC(); |
|
2287 |
|
2288 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Parsing RR Report source SSRC ", tempSSRC ); |
|
2289 |
|
2290 |
|
2291 ret = MatchSSRCToStream( streamAddress, tempSSRC, streamType ); |
|
2292 if ( ret != KErrNone ) |
|
2293 { |
|
2294 return ERTCP_PACKET_ERROR; |
|
2295 } |
|
2296 |
|
2297 if ( streamType == ERxStream ) |
|
2298 { |
|
2299 stream = reinterpret_cast<CRtpRecvStream*>( streamAddress ); |
|
2300 } |
|
2301 else //ETxStream |
|
2302 { |
|
2303 stream = reinterpret_cast<CRtpTranStream*>( streamAddress ); |
|
2304 } |
|
2305 // If this is an RR, the sender participant is identified by |
|
2306 // streamParam.TRTCP_HEADER.SSRC |
|
2307 // DETAIL: Processing RTCP_RR Packet |
|
2308 parseResult = stream->RtpStreamProcessRtcpReportSectionL( iPktRtcpRcv ); |
|
2309 if ( parseResult == ERTCP_PACKET_ERROR || |
|
2310 parseResult == ERTCP_NO_ERROR ) |
|
2311 // parseResult should not be ERTCP_NO_ERROR, as the packet must |
|
2312 // include an SDES section |
|
2313 { |
|
2314 |
|
2315 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Error/unexpected end of RTCP packet, sender SSRC ", |
|
2316 tempSSRC ); |
|
2317 |
|
2318 |
|
2319 return parseResult; |
|
2320 } |
|
2321 |
|
2322 aSourceCount--; |
|
2323 |
|
2324 if ( aSourceCount == 0 ) |
|
2325 { |
|
2326 RTCP_DEBUG_DETAIL( "RECEIVE: Parsed Last RR Report" ); |
|
2327 |
|
2328 |
|
2329 bExit = ETrue; |
|
2330 } |
|
2331 } |
|
2332 return parseResult; |
|
2333 } |
|
2334 |
|
2335 // --------------------------------------------------------------------------- |
|
2336 // TRtpRtcpEnum CRtpSession::ProcessSDESSection() |
|
2337 // |
|
2338 // --------------------------------------------------------------------------- |
|
2339 // |
|
2340 void CRtpSession::DeallocateMemoryForSdes( TRtpPacketIOParam* aParam ) |
|
2341 { |
|
2342 if ( !iRtcpEnabled ) |
|
2343 { |
|
2344 return; |
|
2345 } |
|
2346 |
|
2347 TInt index( 0 ); |
|
2348 if ( aParam == NULL ) |
|
2349 { |
|
2350 return; |
|
2351 } |
|
2352 // deallocate memory for SDES report packet |
|
2353 for ( index = 0; index < ERTCP_NUM_OF_SDES_ITEMS; index++ ) |
|
2354 { |
|
2355 if ( aParam->TRTCP_SDES.sdesItems[index] != NULL ) |
|
2356 { |
|
2357 User::Free( aParam->TRTCP_SDES.sdesItems[index] ); |
|
2358 aParam->TRTCP_SDES.sdesItems[index] = NULL; |
|
2359 } |
|
2360 aParam->TRTCP_SDES.sdesItemsSize[index] = 0; |
|
2361 } |
|
2362 } |
|
2363 |
|
2364 // --------------------------------------------------------------------------- |
|
2365 // TRtpRtcpEnum CRtpSession::GetSDESFromSDESData() |
|
2366 // |
|
2367 // --------------------------------------------------------------------------- |
|
2368 // |
|
2369 TInt CRtpSession::GetSDESFromSDESData( TRtpSdesParams* aTargetSdes, |
|
2370 const CRtpRecvStream* aRecvStream, |
|
2371 CRtpSDES* aSourceSdes ) |
|
2372 { |
|
2373 if ( !iRtcpEnabled ) |
|
2374 { |
|
2375 return KErrGeneral; |
|
2376 } |
|
2377 |
|
2378 if ( aRecvStream ) |
|
2379 { |
|
2380 aRecvStream->iRemoteSDES->GetSDES( *aTargetSdes ); |
|
2381 } |
|
2382 else |
|
2383 { |
|
2384 if ( !aSourceSdes ) |
|
2385 { |
|
2386 return KErrGeneral; |
|
2387 } |
|
2388 aSourceSdes->GetSDES( *aTargetSdes ); |
|
2389 } |
|
2390 return KErrNone; |
|
2391 } |
|
2392 |
|
2393 |
|
2394 // --------------------------------------------------------------------------- |
|
2395 // TRtpRtcpEnum CRtpSession::LogSDESData() |
|
2396 // |
|
2397 // --------------------------------------------------------------------------- |
|
2398 // |
|
2399 #ifdef _DEBUG |
|
2400 void CRtpSession::LogSDESData( const TRtpPacketStreamParam& aStreamParam, |
|
2401 const CRtpRecvStream* aRecvStream, |
|
2402 const CRtpSDES* aSdes, |
|
2403 const TBool aSdesSession ) |
|
2404 { |
|
2405 |
|
2406 if ( !iRtcpEnabled ) |
|
2407 { |
|
2408 return; |
|
2409 } |
|
2410 |
|
2411 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: NEW SDES item for SSRC = ", |
|
2412 aStreamParam.TRTCP_SDES.SSRC ); |
|
2413 |
|
2414 if ( !aSdesSession ) |
|
2415 { |
|
2416 RTCP_DEBUG_DETAIL( "RECEIVE: Receiving NEW SDES items as" ); |
|
2417 for ( TInt k = 0; k < ERTCP_NUM_OF_SDES_ITEMS; k++ ) |
|
2418 { |
|
2419 RTCP_DEBUG_DETAIL( aRecvStream->iRemoteSDES->iSDESItems[k] ); |
|
2420 } |
|
2421 } |
|
2422 else |
|
2423 { |
|
2424 RTCP_DEBUG_DETAIL( "RECEIVE: Receiving NEW SDES items as" ); |
|
2425 for ( TInt k = 0; k < ERTCP_NUM_OF_SDES_ITEMS; k++ ) |
|
2426 { |
|
2427 RTCP_DEBUG_DETAIL( aSdes->iSDESItems[k] ); |
|
2428 } |
|
2429 } |
|
2430 |
|
2431 } |
|
2432 |
|
2433 #endif |
|
2434 // --------------------------------------------------------------------------- |
|
2435 // TRtpRtcpEnum CRtpSession::ProcessSDESData() |
|
2436 // |
|
2437 // --------------------------------------------------------------------------- |
|
2438 // |
|
2439 TRtpRtcpEnum CRtpSession::ProcessSDESDataL( TRtpPacketStreamParam& aStreamParam, |
|
2440 TRtpPacketIOParam& aExtractParam, |
|
2441 TRtpSSRC aSourceSSRC ) |
|
2442 { |
|
2443 if ( !iRtcpEnabled ) |
|
2444 { |
|
2445 return ERTCP_PACKET_ERROR; |
|
2446 } |
|
2447 |
|
2448 CRtpSDES* tempSdes = NULL; |
|
2449 // Flag to indicate whether SDES is to be assigned to the session |
|
2450 TBool fSdesSession( EFalse ); |
|
2451 TInt newSDESSenderItemFlag( EFalse ); |
|
2452 TInt err; |
|
2453 |
|
2454 // For finding the receiving stream that belongs to remote participant SSRC |
|
2455 TStreamType streamType; |
|
2456 TUint streamAddress( NULL ); |
|
2457 TInt matchResult( KErrNone ); |
|
2458 CRtpRecvStream* tempStream = NULL; |
|
2459 matchResult = MatchSSRCToStream( streamAddress, |
|
2460 aStreamParam.TRTCP_SDES.SSRC, |
|
2461 streamType ); |
|
2462 |
|
2463 // If there are no RX streams, only TX streams, then assign the remote |
|
2464 // SDES to the session |
|
2465 if ( matchResult != KErrNone && iNumOfTxStreams && !iNumOfRxStreams ) |
|
2466 { |
|
2467 TUint tempSdesAdress = NULL; |
|
2468 TBool result( EFalse ); |
|
2469 TRAP( err, result = AddSdesToArrayL( tempSdesAdress, |
|
2470 &aExtractParam ) ); |
|
2471 if ( result ) |
|
2472 { |
|
2473 tempSdes = ( CRtpSDES * ) tempSdesAdress; |
|
2474 TRAP( err, tempSdes->AddSsrcToSdesL( aSourceSSRC ) ); |
|
2475 |
|
2476 if ( err ) |
|
2477 return ERTCP_PACKET_ERROR; |
|
2478 |
|
2479 fSdesSession = ETrue; |
|
2480 // increase number of members in session |
|
2481 if ( iTotalParticipantsSession <= KRtcpMaximumParticipants ) |
|
2482 { |
|
2483 iTotalParticipantsSession++; |
|
2484 } |
|
2485 } |
|
2486 } |
|
2487 else if ( matchResult != KErrNone ) |
|
2488 { |
|
2489 // did not find a matching stream |
|
2490 return ERTCP_PACKET_ERROR; |
|
2491 } |
|
2492 else // check stream type |
|
2493 { |
|
2494 if ( streamType == ERxStream ) //Rx stream |
|
2495 { |
|
2496 tempStream = reinterpret_cast<CRtpRecvStream*>( streamAddress ); |
|
2497 } |
|
2498 else // ETxStream |
|
2499 { |
|
2500 return ERTCP_PACKET_ERROR; |
|
2501 } |
|
2502 // update/add SDES in session SDES array |
|
2503 TUint tempSdesAdress = NULL; |
|
2504 TBool result( EFalse ); |
|
2505 TRAP( err, result = AddSdesToArrayL( tempSdesAdress, |
|
2506 &aExtractParam ) ); |
|
2507 if ( result ) |
|
2508 { |
|
2509 tempSdes = reinterpret_cast<CRtpSDES*>( tempSdesAdress ); |
|
2510 TRAP( err, tempSdes->AddSsrcToSdesL( aSourceSSRC ) ); |
|
2511 |
|
2512 if ( err ) |
|
2513 return ERTCP_PACKET_ERROR; |
|
2514 |
|
2515 // increase number of members in session |
|
2516 if ( iTotalParticipantsSession <= KRtcpMaximumParticipants ) |
|
2517 { |
|
2518 iTotalParticipantsSession++; |
|
2519 } |
|
2520 } |
|
2521 } |
|
2522 |
|
2523 if ( matchResult == KErrNone && !fSdesSession ) |
|
2524 { |
|
2525 newSDESSenderItemFlag = CompareAndUpdateSdes( tempStream->iRemoteSDES, |
|
2526 &aExtractParam, |
|
2527 ETrue /* Update all */ ); |
|
2528 } |
|
2529 |
|
2530 if ( iNewSdes ) |
|
2531 { |
|
2532 delete iNewSdes; |
|
2533 iNewSdes = NULL; |
|
2534 } |
|
2535 iNewSdes = new ( ELeave ) TRtpSdesParams() ; |
|
2536 if ( !iNewSdes ) |
|
2537 { |
|
2538 delete iNewSdes; |
|
2539 iNewSdes = NULL; |
|
2540 return ERTCP_PACKET_ERROR; |
|
2541 } |
|
2542 |
|
2543 if ( newSDESSenderItemFlag || fSdesSession ) |
|
2544 { |
|
2545 if ( fSdesSession ) |
|
2546 { |
|
2547 GetSDESFromSDESData( iNewSdes, NULL, tempSdes ); |
|
2548 } |
|
2549 else |
|
2550 { |
|
2551 GetSDESFromSDESData( iNewSdes, tempStream, NULL ); |
|
2552 } |
|
2553 #ifdef _DEBUG |
|
2554 LogSDESData( aStreamParam, tempStream, tempSdes, fSdesSession ); |
|
2555 #endif |
|
2556 } |
|
2557 else |
|
2558 { |
|
2559 // No changes in SDES |
|
2560 |
|
2561 RTCP_DEBUG_DETAIL_DVALUE( "NO CHANGES in SDES item for SSRC = ", |
|
2562 aStreamParam.TRTCP_SDES.SSRC ); |
|
2563 |
|
2564 } |
|
2565 |
|
2566 // Finally, let the observer know what we received |
|
2567 if ( iRtcpObserver ) |
|
2568 { |
|
2569 iRtcpObserver->SdesReceived( aStreamParam.TRTCP_SDES.SSRC, *iNewSdes ); |
|
2570 } |
|
2571 |
|
2572 return ERTCP_NO_ERROR; |
|
2573 } |
|
2574 |
|
2575 // --------------------------------------------------------------------------- |
|
2576 // TRtpRtcpEnum CRtpSession::ProcessSDESSectionL() |
|
2577 // |
|
2578 // --------------------------------------------------------------------------- |
|
2579 // |
|
2580 TRtpRtcpEnum CRtpSession::ProcessSDESSectionL( TRtpSSRC aSourceSSRC ) |
|
2581 { |
|
2582 if ( !iRtcpEnabled ) |
|
2583 { |
|
2584 return ERTCP_PACKET_ERROR; |
|
2585 } |
|
2586 |
|
2587 TRtpPacketStreamParam streamParam; |
|
2588 TRtpPacketIOParam extractParam; |
|
2589 TRtpRtcpEnum parseResult( ERTCP_NO_ERROR ); |
|
2590 TRtpRtcpEnum processDataResult( ERTCP_NO_ERROR ); |
|
2591 TRtpRtcpEnum returnValue( ERTCP_NO_ERROR ); |
|
2592 |
|
2593 parseResult = iPktRtcpRcv->RtpPacketProcessL( &streamParam, &extractParam ); |
|
2594 |
|
2595 if ( parseResult < ERTCP_NO_ERROR ) |
|
2596 { |
|
2597 returnValue = parseResult; |
|
2598 } |
|
2599 else |
|
2600 { |
|
2601 processDataResult = ProcessSDESDataL( streamParam, extractParam, |
|
2602 aSourceSSRC ); |
|
2603 if ( processDataResult != ERTCP_NO_ERROR ) |
|
2604 { |
|
2605 returnValue = processDataResult; |
|
2606 } |
|
2607 else |
|
2608 { |
|
2609 // parseResult may be ERTCP_NO_ERROR or ERTCP_PACKET_MORE (BYE/APP) |
|
2610 returnValue = parseResult; |
|
2611 } |
|
2612 } |
|
2613 |
|
2614 DeallocateMemoryForSdes( &extractParam ); |
|
2615 return returnValue; |
|
2616 } |
|
2617 |
|
2618 // --------------------------------------------------------------------------- |
|
2619 // TRtpRtcpEnum CRtpSession::ProcessBYESection() |
|
2620 // |
|
2621 // --------------------------------------------------------------------------- |
|
2622 // |
|
2623 TRtpRtcpEnum CRtpSession::ProcessBYESectionL() |
|
2624 { |
|
2625 if ( !iRtcpEnabled ) |
|
2626 { |
|
2627 return ERTCP_PACKET_ERROR; |
|
2628 } |
|
2629 |
|
2630 TRtpPacketStreamParam streamParam; |
|
2631 TRtpPacketIOParam extractParam; |
|
2632 |
|
2633 TRtpRtcpEnum parseResult = ERTCP_NO_ERROR; |
|
2634 |
|
2635 parseResult = iPktRtcpRcv->RtpPacketProcessL( &streamParam, &extractParam ); |
|
2636 |
|
2637 if ( parseResult < ERTCP_NO_ERROR ) |
|
2638 { |
|
2639 if ( extractParam.TRTCP_BYE.reason != NULL ) |
|
2640 { |
|
2641 User::Free( extractParam.TRTCP_BYE.reason ); |
|
2642 } |
|
2643 return ERTCP_PACKET_ERROR; |
|
2644 } |
|
2645 |
|
2646 // find the receiving stream that belongs to remote participant SSRC |
|
2647 TStreamType streamType; |
|
2648 TUint rcvStreamAddress = NULL; |
|
2649 TRtpId rcvStreamId = 0; |
|
2650 TInt ret = KErrNone; |
|
2651 CRtpRecvStream* rcvStream; |
|
2652 ret = MatchSSRCToStream( rcvStreamAddress, streamParam.TRTCP_BYE.SSRC, |
|
2653 streamType ); |
|
2654 if ( streamType == ERxStream ) |
|
2655 { |
|
2656 rcvStream = reinterpret_cast<CRtpRecvStream*>( rcvStreamAddress ); |
|
2657 } |
|
2658 else |
|
2659 { |
|
2660 if ( extractParam.TRTCP_BYE.reason != NULL ) |
|
2661 { |
|
2662 User::Free( extractParam.TRTCP_BYE.reason ); |
|
2663 } |
|
2664 return ERTCP_PACKET_ERROR; |
|
2665 } |
|
2666 if ( ret == KErrNone ) |
|
2667 { |
|
2668 rcvStreamId = rcvStream->GetStreamID(); |
|
2669 TPtrC8 reason( const_cast<const TUint8*>( extractParam.TRTCP_BYE.reason ), |
|
2670 extractParam.TRTCP_BYE.reasonSize ); |
|
2671 |
|
2672 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Receiving BYE message RX stream ID ", rcvStreamId ); |
|
2673 RTCP_DEBUG_DETAIL( extractParam.TRTCP_BYE.reason ); |
|
2674 |
|
2675 |
|
2676 if ( iRtcpObserver ) |
|
2677 { |
|
2678 iRtcpObserver->ByeReceived( rcvStreamId, |
|
2679 streamParam.TRTCP_BYE.SSRC, reason ); |
|
2680 } |
|
2681 |
|
2682 // Delete the SDES information in the array for this SSRC and decrease |
|
2683 // number participants in session |
|
2684 ret = RemoveSdesFromArray( streamParam.TRTCP_BYE.SSRC ); |
|
2685 if ( ret == KErrNone ) |
|
2686 { |
|
2687 if ( iTotalParticipantsSession > 1 ) |
|
2688 { |
|
2689 iTotalParticipantsSession--; |
|
2690 } |
|
2691 } |
|
2692 |
|
2693 if ( extractParam.TRTCP_BYE.reason != NULL ) |
|
2694 { |
|
2695 User::Free( extractParam.TRTCP_BYE.reason ); |
|
2696 } |
|
2697 parseResult = ERTCP_FOUND_RXSTREAM; |
|
2698 } |
|
2699 |
|
2700 return parseResult; |
|
2701 } |
|
2702 |
|
2703 // --------------------------------------------------------------------------- |
|
2704 // TRtpRtcpEnum CRtpSession::ProcessAPPSection() |
|
2705 // |
|
2706 // --------------------------------------------------------------------------- |
|
2707 // |
|
2708 TRtpRtcpEnum CRtpSession::ProcessAPPSectionL( TInt aTotalPacketLen, |
|
2709 TInt aSubType ) |
|
2710 { |
|
2711 if ( !iRtcpEnabled ) |
|
2712 { |
|
2713 return ERTCP_PACKET_ERROR; |
|
2714 } |
|
2715 |
|
2716 TRtpPacketStreamParam streamParam; |
|
2717 TRtpPacketIOParam extractParam; |
|
2718 TRtpRtcpEnum parseResult = ERTCP_NO_ERROR; |
|
2719 |
|
2720 streamParam.TRTCP_APP.totalPacketLen = aTotalPacketLen; |
|
2721 parseResult = iPktRtcpRcv->RtpPacketProcessL( &streamParam, &extractParam ); |
|
2722 |
|
2723 if ( parseResult < ERTCP_NO_ERROR ) |
|
2724 { |
|
2725 return ERTCP_PACKET_ERROR; |
|
2726 } |
|
2727 // find the receiving stream that belongs to remote participant SSRC |
|
2728 TStreamType streamType; |
|
2729 TUint rcvStreamAddress = NULL; |
|
2730 TRtpId rcvStreamId = 0; |
|
2731 TInt ret = KErrNone; |
|
2732 CRtpRecvStream* rcvStream; |
|
2733 ret = MatchSSRCToStream( rcvStreamAddress, streamParam.TRTCP_APP.SSRC, |
|
2734 streamType ); |
|
2735 if ( streamType == ERxStream ) |
|
2736 { |
|
2737 rcvStream = reinterpret_cast<CRtpRecvStream*>( rcvStreamAddress ); |
|
2738 } |
|
2739 else |
|
2740 { |
|
2741 return ERTCP_PACKET_ERROR; |
|
2742 } |
|
2743 |
|
2744 if ( ret == KErrNone ) |
|
2745 { |
|
2746 rcvStreamId = rcvStream->GetStreamID(); |
|
2747 |
|
2748 TRtcpApp app; |
|
2749 app.iSubType = aSubType; |
|
2750 Mem::Copy( app.iName, extractParam.TRTCP_APP.name, |
|
2751 sizeof( TRtcpAppName ) ); |
|
2752 Mem::Copy( app.iAppData, extractParam.TRTCP_APP.appData, |
|
2753 extractParam.TRTCP_APP.appDataLen ); |
|
2754 app.iAppDataLen = extractParam.TRTCP_APP.appDataLen; |
|
2755 |
|
2756 if ( iRtcpObserver ) |
|
2757 { |
|
2758 iRtcpObserver->AppReceived( rcvStreamId, |
|
2759 streamParam.TRTCP_APP.SSRC, app ); |
|
2760 } |
|
2761 |
|
2762 RTCP_DEBUG_DETAIL_DVALUE( "RECEIVE: Receiving APP message RX stream ID ", rcvStreamId ); |
|
2763 RTCP_DEBUG_DETAIL( extractParam.TRTCP_APP.appData ); |
|
2764 |
|
2765 |
|
2766 User::Free( extractParam.TRTCP_APP.appData ); |
|
2767 parseResult = ERTCP_FOUND_RXSTREAM; |
|
2768 } |
|
2769 |
|
2770 return parseResult; |
|
2771 } |
|
2772 |
|
2773 // --------------------------------------------------------------------------- |
|
2774 // void CRtpSession::StopRtcpSending() |
|
2775 // |
|
2776 // --------------------------------------------------------------------------- |
|
2777 // |
|
2778 TInt CRtpSession::StopRtcpSending() |
|
2779 { |
|
2780 TInt result( KErrNotSupported ); |
|
2781 if ( iRtcpEnabled ) |
|
2782 { |
|
2783 iSndRtcpTimer->Cancel(); |
|
2784 iRtcpSendingSuspended = ETrue; |
|
2785 result = KErrNone; |
|
2786 } |
|
2787 return result; |
|
2788 } |
|
2789 |
|
2790 // --------------------------------------------------------------------------- |
|
2791 // void CRtpSession::IsRtcpSendingSuspended() |
|
2792 // |
|
2793 // --------------------------------------------------------------------------- |
|
2794 // |
|
2795 TInt CRtpSession::IsRtcpSendingSuspended( TBool& aAutoSending ) |
|
2796 { |
|
2797 TInt result( KErrNotSupported ); |
|
2798 if ( iRtcpEnabled ) |
|
2799 { |
|
2800 aAutoSending = !iRtcpSendingSuspended; |
|
2801 result = KErrNone; |
|
2802 } |
|
2803 return result; |
|
2804 } |
|
2805 |
|
2806 // --------------------------------------------------------------------------- |
|
2807 // void CRtpSession::ResumeRtcpSending() |
|
2808 // |
|
2809 // --------------------------------------------------------------------------- |
|
2810 // |
|
2811 TInt CRtpSession::ResumeRtcpSending() |
|
2812 { |
|
2813 TInt result( KErrNotSupported ); |
|
2814 if ( iRtcpEnabled ) |
|
2815 { |
|
2816 iRtcpSendingSuspended = EFalse; |
|
2817 result = KErrNone; |
|
2818 if ( iSessionStarted ) |
|
2819 { |
|
2820 if ( !iSndRtcpTimer->IsActive() ) |
|
2821 { |
|
2822 iSndRtcpTimer->After( iRtcpTimeInterval * |
|
2823 KMicrosecondPerMillSecond ); |
|
2824 } |
|
2825 else |
|
2826 { |
|
2827 result = KErrInUse; |
|
2828 } |
|
2829 } |
|
2830 } |
|
2831 return result; |
|
2832 } |
|
2833 |
|
2834 // --------------------------------------------------------------------------- |
|
2835 // CRtpSession::ScheduleRtcpSend() |
|
2836 // |
|
2837 // --------------------------------------------------------------------------- |
|
2838 // |
|
2839 void CRtpSession::ScheduleRtcpSendL() |
|
2840 { |
|
2841 if ( iRtcpEnabled && !iRtcpSendingSuspended ) |
|
2842 { |
|
2843 BuildSendRTCPReportL(); |
|
2844 NextRtcpInterval(); |
|
2845 iSndRtcpTimer->After( iRtcpTimeInterval * KMicrosecondPerMillSecond ); |
|
2846 } |
|
2847 } |
|
2848 |
|
2849 // --------------------------------------------------------------------------- |
|
2850 // CRtpSession::OnExpiredL() |
|
2851 // Rtcp scheduler time out call back |
|
2852 // --------------------------------------------------------------------------- |
|
2853 // |
|
2854 void CRtpSession::OnExpiredL( TInt /*aStatus*/ ) |
|
2855 { |
|
2856 if ( iRtcpEnabled ) |
|
2857 { |
|
2858 ScheduleRtcpSendL(); |
|
2859 } |
|
2860 } |
|
2861 |
|
2862 // --------------------------------------------------------------------------- |
|
2863 // CRtpSession::OnRtpReceivedL() |
|
2864 // Rtp received callback |
|
2865 // --------------------------------------------------------------------------- |
|
2866 // |
|
2867 void CRtpSession::OnRtpReceivedL() |
|
2868 { |
|
2869 RTP_DEBUG_DETAIL( "CRtpSession::OnRtpReceivedL Entry" ); |
|
2870 |
|
2871 TInt ret; |
|
2872 if ( iStandardRtp ) |
|
2873 { |
|
2874 if ( iRtpRecvBuf.Size() < KMinRtpHeaderSize ) |
|
2875 { |
|
2876 // The packet is too short to be valid (min 96 bits in header). |
|
2877 // Discard and continue to issue packet receiving. |
|
2878 |
|
2879 RTP_DEBUG_DETAIL( "Rtp packet too small, discarded" ); |
|
2880 |
|
2881 |
|
2882 // if someone is interested receiving non-RTP control packets |
|
2883 if (iNonRTPDataObserver != NULL) |
|
2884 { |
|
2885 // notify user |
|
2886 iNonRTPDataObserver->NonRTPDataReceived(GetRtpSocket()->LocalPort(), |
|
2887 ETrue, iRtpRecvBuf); |
|
2888 } |
|
2889 } |
|
2890 else |
|
2891 { |
|
2892 |
|
2893 iPktRcv->SetSize( iRtpRecvBuf.Size() ); |
|
2894 |
|
2895 RTP_DEBUG_DETAIL_DVALUE( "Rtp Packet size = ", iRtpRecvBuf.Size() ); |
|
2896 |
|
2897 // Give the packet to each Rx stream until the stream SSRC matches |
|
2898 // the SSRC of the RTP packet |
|
2899 |
|
2900 RTP_DEBUG_DETAIL( "FindRtpRxStream by SSRC" ); |
|
2901 |
|
2902 ret = FindRtpRxStreamL(); |
|
2903 |
|
2904 if ( ret != KErrNone ) |
|
2905 { |
|
2906 // If no RX streams match remote SSRC, then allow any RX stream |
|
2907 // with Null SSRC to accept RTP packet |
|
2908 |
|
2909 RTP_DEBUG_DETAIL( "No RX streams match set remote SSRC" ); |
|
2910 |
|
2911 RTP_DEBUG_DETAIL( "Check if any RX stream with Null SSRC to accept RTP packet" ); |
|
2912 ret = AssignRtpRxStreamL(); |
|
2913 |
|
2914 if ( ret != KErrNone ) |
|
2915 { |
|
2916 //FindAnotherSSRC |
|
2917 |
|
2918 if( ret == KErrNotFound ) |
|
2919 { |
|
2920 |
|
2921 RTP_DEBUG_DETAIL( "Find another remote SSRC " ); |
|
2922 |
|
2923 RTP_DEBUG_DETAIL( "Either is NonRtp data or a new RTP SSRC stream has to be created" ); |
|
2924 |
|
2925 iPktRcv->RtpPacketResetPtr(); |
|
2926 |
|
2927 TRtpPacketStreamParam streamParam; |
|
2928 TRtpPacketIOParam extractParam; |
|
2929 |
|
2930 // process RTP packet |
|
2931 iPktRcv->SetType( ERTP ); |
|
2932 |
|
2933 extractParam.TRTP.extension.data = NULL; |
|
2934 |
|
2935 if ( iPktRcv->RtpPacketProcessL( &streamParam, &extractParam ) < 0 ) |
|
2936 { |
|
2937 RTP_DEBUG_DETAIL( "Invalid Rtp packet is received" ); |
|
2938 |
|
2939 if (iNonRTPDataObserver != NULL) |
|
2940 { |
|
2941 // notify user |
|
2942 iNonRTPDataObserver->NonRTPDataReceived(GetRtpSocket()->LocalPort(), |
|
2943 ETrue, iRtpRecvBuf); |
|
2944 } |
|
2945 } |
|
2946 else |
|
2947 { |
|
2948 //Valid RTP packet only |
|
2949 RTP_DEBUG_DETAIL( "Create new Recv Stream for valid RTP packet " ); |
|
2950 CreateNewRecvStreamL(); |
|
2951 } |
|
2952 |
|
2953 } |
|
2954 |
|
2955 else |
|
2956 { |
|
2957 // Maybe invalid packet received, continue to receive |
|
2958 // if someone is interested receiving non-RTP control packets |
|
2959 |
|
2960 if (iNonRTPDataObserver != NULL) |
|
2961 { |
|
2962 RTP_DEBUG_DETAIL( "NonRtpDataReceived" ); |
|
2963 // notify user |
|
2964 iNonRTPDataObserver->NonRTPDataReceived(GetRtpSocket()->LocalPort(), |
|
2965 ETrue, iRtpRecvBuf); |
|
2966 } |
|
2967 } |
|
2968 |
|
2969 } |
|
2970 |
|
2971 } |
|
2972 } |
|
2973 } |
|
2974 else |
|
2975 { |
|
2976 RTP_DEBUG_DETAIL( "Not standard RTP packets" ); |
|
2977 |
|
2978 iPktExtRcv->SetSize( iRtpRecvBuf.Size() ); |
|
2979 TUint8* buf = 0; |
|
2980 TInt length; |
|
2981 ret = iPktExtRcv->RtpPacketProcess( buf, &length ); |
|
2982 } |
|
2983 RTP_DEBUG_DETAIL( "CRtpSession::OnRtpReceivedL Exit" ); |
|
2984 |
|
2985 IssueRtpRecv(); |
|
2986 } |
|
2987 |
|
2988 // --------------------------------------------------------------------------- |
|
2989 // CRtpSession::OnRtcpReceivedL() |
|
2990 // Rtcp received call back |
|
2991 // --------------------------------------------------------------------------- |
|
2992 // |
|
2993 void CRtpSession::OnRtcpReceivedL() |
|
2994 { |
|
2995 if ( !iRtcpEnabled ) |
|
2996 { |
|
2997 return; |
|
2998 } |
|
2999 |
|
3000 TRtpRtcpEnum errPacket; |
|
3001 iPktRtcpRcv->SetSize( iRtcpRecvBuf.Size() ); |
|
3002 |
|
3003 errPacket = ProcessRTCPReportL(); |
|
3004 |
|
3005 // if someone is interested receiving non-RTP control packets |
|
3006 if (errPacket == ERTCP_PACKET_ERROR && iNonRTPDataObserver != NULL) |
|
3007 { |
|
3008 // notify user |
|
3009 iNonRTPDataObserver->NonRTPDataReceived(GetRtcpSocket()->LocalPort(), EFalse, |
|
3010 iRtcpRecvBuf); |
|
3011 } |
|
3012 |
|
3013 IssueRtcpRecv(); |
|
3014 |
|
3015 if ( errPacket == ERTCP_PACKET_ERROR ) |
|
3016 { |
|
3017 iRtcpErrors++; |
|
3018 |
|
3019 |
|
3020 RTCP_DEBUG_DETAIL_DVALUE( "ERROR: Packet error Session ID = ", iSessionId ); |
|
3021 |
|
3022 } |
|
3023 } |
|
3024 |
|
3025 // --------------------------------------------------------------------------- |
|
3026 // CRtpSession::OnReceptionError() |
|
3027 // Rtcp reception error call back |
|
3028 // --------------------------------------------------------------------------- |
|
3029 // |
|
3030 void CRtpSession::OnReceptionError( TPortType aPort, TInt aError ) |
|
3031 { |
|
3032 |
|
3033 RTP_DEBUG_DETAIL( "CRtpSession::OnReceptionError" ); |
|
3034 |
|
3035 |
|
3036 switch ( aError ) |
|
3037 { |
|
3038 case KErrDisconnected: |
|
3039 |
|
3040 RTP_DEBUG_DETAIL( "Socket Disconnected" ); |
|
3041 |
|
3042 break; |
|
3043 |
|
3044 default: |
|
3045 if ( aPort == ERTCPPort ) |
|
3046 { |
|
3047 |
|
3048 RTCP_DEBUG_DETAIL_DVALUE( "RTCP reception error", |
|
3049 aError ); |
|
3050 |
|
3051 IssueRtcpRecv(); |
|
3052 } |
|
3053 else |
|
3054 { |
|
3055 |
|
3056 RTP_DEBUG_DETAIL_DVALUE( "RTP reception error", |
|
3057 aError ); |
|
3058 |
|
3059 IssueRtpRecv(); |
|
3060 } |
|
3061 |
|
3062 RTP_DEBUG_DETAIL( "Restarting reception" ); |
|
3063 |
|
3064 break; |
|
3065 } |
|
3066 } |
|
3067 |
|
3068 // --------------------------------------------------------------------------- |
|
3069 // TRtpSSRC CRtpSession::OnPacketRejected() |
|
3070 // |
|
3071 // --------------------------------------------------------------------------- |
|
3072 // |
|
3073 void CRtpSession::OnPacketRejected(TPortType aPort) |
|
3074 { |
|
3075 |
|
3076 RTP_DEBUG_DETAIL( "OnPacketRejected" ); |
|
3077 |
|
3078 |
|
3079 if ( aPort == ERTPPort ) |
|
3080 { |
|
3081 IssueRtpRecv(); |
|
3082 } |
|
3083 else |
|
3084 { |
|
3085 IssueRtcpRecv(); |
|
3086 } |
|
3087 |
|
3088 } |
|
3089 |
|
3090 // --------------------------------------------------------------------------- |
|
3091 // TRtpSSRC CRtpSession::GenerateSSRC() |
|
3092 // |
|
3093 // --------------------------------------------------------------------------- |
|
3094 // |
|
3095 TRtpSSRC CRtpSession::GenerateSSRC() |
|
3096 { |
|
3097 return static_cast<TUint32>( Random() ); |
|
3098 } |
|
3099 |
|
3100 // --------------------------------------------------------------------------- |
|
3101 // TInt CRtpSession::AddStream() |
|
3102 // Add Stream object to array |
|
3103 // --------------------------------------------------------------------------- |
|
3104 // |
|
3105 TInt CRtpSession::AddStream( const TStream aArrayID, TStreamType aStreamType ) |
|
3106 { |
|
3107 if ( aStreamType == ERxStream ) |
|
3108 { |
|
3109 TRAPD( ret, iStreamRxArray->AppendL( aArrayID ) ); |
|
3110 return ret; |
|
3111 } |
|
3112 else //ETxStream |
|
3113 { |
|
3114 TRAPD( ret, iStreamTxArray->AppendL( aArrayID ) ); |
|
3115 return ret; |
|
3116 } |
|
3117 } |
|
3118 |
|
3119 // --------------------------------------------------------------------------- |
|
3120 // TInt CRtpSession::FindStream() |
|
3121 // Find Stream Object in array |
|
3122 // --------------------------------------------------------------------------- |
|
3123 // |
|
3124 TInt CRtpSession::FindStream( const TRtpId aMagicKey, TUint& aStreamAddress ) |
|
3125 { |
|
3126 TKeyArrayFix magicKey( TStream::iOffset, ECmpTUint ); |
|
3127 TInt index = -1; |
|
3128 |
|
3129 TStream match( aMagicKey, 0 ); |
|
3130 if ( ( iStreamRxArray->Find( match, magicKey, index ) == KErrNone ) |
|
3131 && ( index >= 0 ) ) |
|
3132 { |
|
3133 aStreamAddress = iStreamRxArray->At( index ).GetStreamAddress(); |
|
3134 } |
|
3135 else if ( ( iStreamTxArray->Find( match, magicKey, index ) == KErrNone ) |
|
3136 && ( index >= 0 ) ) |
|
3137 { |
|
3138 aStreamAddress = iStreamTxArray->At( index ).GetStreamAddress(); |
|
3139 } |
|
3140 else |
|
3141 { |
|
3142 return KErrNotFound; |
|
3143 } |
|
3144 |
|
3145 return KErrNone; |
|
3146 } |
|
3147 |
|
3148 // --------------------------------------------------------------------------- |
|
3149 // TInt CRtpSession::FindStream() |
|
3150 // Find Stream Object in array |
|
3151 // --------------------------------------------------------------------------- |
|
3152 // |
|
3153 TInt CRtpSession::FindStream( const TRtpId aMagicKey, TUint& aStreamAddress, |
|
3154 TStreamType& aStreamType ) |
|
3155 { |
|
3156 TKeyArrayFix magicKey( TStream::iOffset, ECmpTUint ); |
|
3157 TUint temp = 0; |
|
3158 TInt index = -1; |
|
3159 |
|
3160 TStream match( aMagicKey, temp ); |
|
3161 if ( ( iStreamRxArray->Find( match, magicKey, index ) == KErrNone ) |
|
3162 && ( index >= 0 ) ) |
|
3163 { |
|
3164 aStreamAddress = iStreamRxArray->At( index ).GetStreamAddress(); |
|
3165 aStreamType = ERxStream; |
|
3166 } |
|
3167 else if ( ( iStreamTxArray->Find( match, magicKey, index ) == KErrNone ) |
|
3168 && ( index >= 0 ) ) |
|
3169 { |
|
3170 aStreamAddress = iStreamTxArray->At( index ).GetStreamAddress(); |
|
3171 aStreamType = ETxStream; |
|
3172 } |
|
3173 else |
|
3174 { |
|
3175 return KErrNotFound; |
|
3176 } |
|
3177 |
|
3178 return KErrNone; |
|
3179 } |
|
3180 |
|
3181 // --------------------------------------------------------------------------- |
|
3182 // TInt CRtpSession::RemoveStream() |
|
3183 // Delete Stream object from array |
|
3184 // --------------------------------------------------------------------------- |
|
3185 // |
|
3186 TInt CRtpSession::RemoveStream( const TRtpId aMagicKey, |
|
3187 TStreamType& aStreamType ) |
|
3188 { |
|
3189 TKeyArrayFix magicKey( TStream::iOffset, ECmpTUint ); |
|
3190 TInt index = -1; |
|
3191 |
|
3192 TStream match( aMagicKey ); |
|
3193 if ( ( iStreamRxArray->Find( match, magicKey, index ) == KErrNone ) |
|
3194 && ( index >= 0 ) ) |
|
3195 { |
|
3196 |
|
3197 RTP_DEBUG_DETAIL_DVALUE( "RX STREAM ARRAY: Remove Stream ID = ", |
|
3198 iStreamRxArray->At( index ).GetMagicKey() ); |
|
3199 |
|
3200 |
|
3201 CRtpRecvStream* tempStream = reinterpret_cast<CRtpRecvStream*>( |
|
3202 ( iStreamRxArray->At( index ).GetStreamAddress() ) ); |
|
3203 |
|
3204 |
|
3205 aStreamType = ERxStream; |
|
3206 delete tempStream; |
|
3207 iStreamRxArray->Delete( index ); |
|
3208 iStreamRxArray->Compress(); |
|
3209 } |
|
3210 else if ( ( iStreamTxArray->Find( match, magicKey, index ) == KErrNone ) |
|
3211 && ( index >= 0 ) ) |
|
3212 { |
|
3213 |
|
3214 RTP_DEBUG_DETAIL_DVALUE( "TX STREAM ARRAY: Remove Stream ID = ", |
|
3215 iStreamTxArray->At( index ).GetMagicKey() ); |
|
3216 |
|
3217 |
|
3218 CRtpTranStream* tempStream = reinterpret_cast<CRtpTranStream*>( |
|
3219 ( iStreamTxArray->At( index ).GetStreamAddress() ) ); |
|
3220 aStreamType = ETxStream; |
|
3221 delete tempStream; |
|
3222 iStreamTxArray->Delete( index ); |
|
3223 iStreamTxArray->Compress(); |
|
3224 } |
|
3225 else |
|
3226 { |
|
3227 return KErrNotFound; |
|
3228 } |
|
3229 |
|
3230 return KErrNone; |
|
3231 } |
|
3232 |
|
3233 // --------------------------------------------------------------------------- |
|
3234 // CRtpSession::RemoveAllStreams() |
|
3235 // Delete all stream objects from array |
|
3236 // --------------------------------------------------------------------------- |
|
3237 // |
|
3238 void CRtpSession::RemoveAllStreams() |
|
3239 { |
|
3240 if ( iStreamRxArray ) |
|
3241 { |
|
3242 TInt totalRxStream( iStreamRxArray->Count() ); |
|
3243 |
|
3244 //Delete all RX Streams starting with the last one |
|
3245 while( totalRxStream > 0 ) |
|
3246 { |
|
3247 //totalRxStream - 1 is the last element in the array |
|
3248 |
|
3249 RTP_DEBUG_DETAIL_DVALUE("RX STREAM ARRAY: Remove ALL RX Stream ID = ", |
|
3250 iStreamRxArray->At( totalRxStream - 1 ).GetMagicKey() ); |
|
3251 |
|
3252 |
|
3253 CRtpRecvStream* tempStream = reinterpret_cast<CRtpRecvStream*>( |
|
3254 ( iStreamRxArray->At( totalRxStream - 1 ).GetStreamAddress() ) ); |
|
3255 delete tempStream; |
|
3256 |
|
3257 iStreamRxArray->Delete( totalRxStream - 1 ); |
|
3258 totalRxStream = iStreamRxArray->Count(); |
|
3259 } |
|
3260 |
|
3261 iStreamRxArray->Reset(); |
|
3262 iStreamRxArray->Compress(); |
|
3263 } |
|
3264 |
|
3265 if ( iStreamTxArray ) |
|
3266 { |
|
3267 TInt totalTxStream( iStreamTxArray->Count() ); |
|
3268 |
|
3269 //Delete all TX Streams starting with the last one |
|
3270 while ( totalTxStream > 0 ) |
|
3271 { |
|
3272 //totalTxStream - 1 is the last element in the array |
|
3273 |
|
3274 RTP_DEBUG_DETAIL_DVALUE( "TX STREAM ARRAY: Remove ALL TX Stream ID = ", |
|
3275 iStreamTxArray->At( totalTxStream - 1 ).GetMagicKey() ); |
|
3276 |
|
3277 |
|
3278 CRtpTranStream* tempStream = reinterpret_cast<CRtpTranStream*>( |
|
3279 ( iStreamTxArray->At( totalTxStream - 1 ).GetStreamAddress() ) ); |
|
3280 delete tempStream; |
|
3281 |
|
3282 iStreamTxArray->Delete( totalTxStream - 1 ); |
|
3283 totalTxStream = iStreamTxArray->Count(); |
|
3284 } |
|
3285 |
|
3286 iStreamTxArray->Reset(); |
|
3287 iStreamTxArray->Compress(); |
|
3288 } |
|
3289 } |
|
3290 |
|
3291 // --------------------------------------------------------------------------- |
|
3292 // TInt CRtpSession::FindRtpRxStreamSSRC() |
|
3293 // Find a RX stream that matches RTP packet SSRC |
|
3294 // --------------------------------------------------------------------------- |
|
3295 // |
|
3296 void CRtpSession::FindRtpRxStreamSSRC(TRtpSSRC& aSSRC) |
|
3297 { |
|
3298 aSSRC=0; |
|
3299 TInt totalStream = iStreamRxArray->Count(); |
|
3300 |
|
3301 if ( totalStream > 0 ) |
|
3302 { |
|
3303 for ( TInt index = 0; index < totalStream; index++ ) |
|
3304 { |
|
3305 CRtpRecvStream* tempStream = ( CRtpRecvStream* ) |
|
3306 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
3307 |
|
3308 iPktRcv->RtpPacketResetPtr(); |
|
3309 |
|
3310 TRtpSSRC aRemoteSSRC( NULL ); |
|
3311 iPktRcv->SetType( ERTP ); |
|
3312 aRemoteSSRC = iPktRcv->RtpPacketGetSSRC(); |
|
3313 //first if the stream has been assigned else assign it with this packetSSRC |
|
3314 if ( tempStream->GetRemoteSSRC() == aRemoteSSRC ) |
|
3315 { |
|
3316 aSSRC=aRemoteSSRC; |
|
3317 |
|
3318 } |
|
3319 } |
|
3320 if (aSSRC==0) |
|
3321 { |
|
3322 for ( TInt index = 0; index < totalStream; index++ ) |
|
3323 { |
|
3324 CRtpRecvStream* tempStream = ( CRtpRecvStream* ) |
|
3325 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
3326 |
|
3327 //find stream with emptly ssrc |
|
3328 if ( tempStream->GetRemoteSSRC()==NULL ) |
|
3329 { |
|
3330 iPktRcv->RtpPacketResetPtr(); |
|
3331 aSSRC = iPktRcv->RtpPacketGetSSRC(); |
|
3332 } |
|
3333 } |
|
3334 } |
|
3335 } |
|
3336 |
|
3337 } |
|
3338 // --------------------------------------------------------------------------- |
|
3339 // TInt CRtpSession::FindRtpRxStreamL() |
|
3340 // Find a RX stream that matches RTP packet SSRC |
|
3341 // --------------------------------------------------------------------------- |
|
3342 // |
|
3343 TInt CRtpSession::FindRtpRxStreamL() |
|
3344 { |
|
3345 TInt ret = KErrNotFound; |
|
3346 TBool assignRcvStream = EFalse; |
|
3347 TInt totalStream = iStreamRxArray->Count(); |
|
3348 |
|
3349 if ( totalStream > 0 ) |
|
3350 { |
|
3351 for ( TInt index = 0; index < totalStream; index++ ) |
|
3352 { |
|
3353 CRtpRecvStream* tempStream = ( CRtpRecvStream* ) |
|
3354 ( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
3355 ret = tempStream->RtpStreamProcessRtpPacketL( iPktRcv, |
|
3356 assignRcvStream ); |
|
3357 if ( ret == KErrNone ) |
|
3358 { |
|
3359 |
|
3360 RTP_DEBUG_DETAIL_DVALUE( "RX STREAM ARRAY: FOUND RX (RTP) stream ID = ", |
|
3361 tempStream->GetStreamID() ); |
|
3362 |
|
3363 |
|
3364 return ret; |
|
3365 } |
|
3366 } |
|
3367 } |
|
3368 return ret; |
|
3369 } |
|
3370 |
|
3371 // --------------------------------------------------------------------------- |
|
3372 // TInt CRtpSession::AssignRtpRxStreamL() |
|
3373 // Assigns a RX stream to the RTP packet SSRC |
|
3374 // --------------------------------------------------------------------------- |
|
3375 // |
|
3376 TInt CRtpSession::AssignRtpRxStreamL() |
|
3377 { |
|
3378 RTP_DEBUG_DETAIL( "CRtpSession::AssignRtpRxStream Entry" ); |
|
3379 TInt index; |
|
3380 TInt ret = KErrNotFound; |
|
3381 TBool assignRcvStream = ETrue; |
|
3382 TInt totalStream = iStreamRxArray->Count(); |
|
3383 |
|
3384 if ( totalStream > 0 ) |
|
3385 { |
|
3386 for ( index = 0; index < totalStream; index++ ) |
|
3387 { |
|
3388 |
|
3389 RTP_DEBUG_DETAIL_DVALUE( |
|
3390 "RX STREAM ARRAY: Assigning RTP to RX stream ID = ", |
|
3391 iStreamRxArray->At( index ).GetMagicKey() ); |
|
3392 |
|
3393 |
|
3394 CRtpRecvStream* tempStream = reinterpret_cast<CRtpRecvStream*>( |
|
3395 ( iStreamRxArray->At( index ).GetStreamAddress() ) ); |
|
3396 ret = tempStream->RtpStreamProcessRtpPacketL( iPktRcv, |
|
3397 assignRcvStream ); |
|
3398 if ( ret == KErrNone ) |
|
3399 { |
|
3400 |
|
3401 RTP_DEBUG_DETAIL_DVALUE( "RX STREAM ARRAY: ASSIGNED RX stream SSRC = ", |
|
3402 tempStream->GetLocalSSRC() ); |
|
3403 |
|
3404 RTP_DEBUG_DETAIL( "CRtpSession::AssignRtpRxStream Exit" ); |
|
3405 return ret; |
|
3406 } |
|
3407 } |
|
3408 } |
|
3409 RTP_DEBUG_DETAIL( "no stream in RTP Sesssion" ); |
|
3410 |
|
3411 RTP_DEBUG_DETAIL( "CRtpSession::AssignRtpRxStream Exit" ); |
|
3412 |
|
3413 return ret; |
|
3414 } |
|
3415 |
|
3416 // --------------------------------------------------------------------------- |
|
3417 // TInt CRtpSession::MatchSSRCToStream() |
|
3418 // finds a stream for a given source SSRC |
|
3419 // --------------------------------------------------------------------------- |
|
3420 // |
|
3421 TInt CRtpSession::MatchSSRCToStream( TUint& aStreamAddress, |
|
3422 TRtpSSRC aSSRC, |
|
3423 TStreamType& aStreamType ) |
|
3424 { |
|
3425 TInt index; |
|
3426 TInt totalRxStream = iStreamRxArray->Count(); |
|
3427 TInt totalTxStream = iStreamTxArray->Count(); |
|
3428 |
|
3429 if ( totalRxStream > 0 ) |
|
3430 { |
|
3431 for ( index = 0; index < totalRxStream; index++ ) |
|
3432 { |
|
3433 TUint streamAddr( iStreamRxArray->At( index ).GetStreamAddress() ); |
|
3434 CRtpRecvStream* tempStream = |
|
3435 reinterpret_cast<CRtpRecvStream*>( streamAddr ); |
|
3436 if ( tempStream->GetRemoteSSRC() == aSSRC ) |
|
3437 { |
|
3438 |
|
3439 RTP_DEBUG_DETAIL_DVALUE( "RX STREAM ARRAY: MATCHED RX stream ID = ", |
|
3440 tempStream->GetStreamID() ); |
|
3441 RTP_DEBUG_DETAIL_DVALUE( "RX STREAM ARRAY: MATCHED RX stream Key = ", |
|
3442 iStreamRxArray->At( index ).GetMagicKey() ); |
|
3443 RTP_DEBUG_DETAIL_DVALUE( "RX STREAM ARRAY: MATCHED RX stream SSRC = ", |
|
3444 tempStream->GetLocalSSRC() ); |
|
3445 |
|
3446 |
|
3447 aStreamAddress = streamAddr; |
|
3448 aStreamType = ERxStream; |
|
3449 return KErrNone; |
|
3450 } |
|
3451 } |
|
3452 } |
|
3453 |
|
3454 if ( totalTxStream > 0 ) |
|
3455 { |
|
3456 for ( index = 0; index < totalTxStream; index++ ) |
|
3457 { |
|
3458 TUint streamAddr( iStreamTxArray->At( index ).GetStreamAddress() ); |
|
3459 CRtpTranStream* tempStream = |
|
3460 reinterpret_cast<CRtpTranStream*>( streamAddr ); |
|
3461 if ( tempStream->GetLocalSSRC() == aSSRC ) |
|
3462 { |
|
3463 |
|
3464 RTP_DEBUG_DETAIL_DVALUE( "TX STREAM ARRAY: MATCHED TX stream ID = ", |
|
3465 tempStream->GetStreamID() ); |
|
3466 RTP_DEBUG_DETAIL_DVALUE( "TX STREAM ARRAY: MATCHED TX stream Key = ", |
|
3467 iStreamTxArray->At( index ).GetMagicKey() ); |
|
3468 RTP_DEBUG_DETAIL_DVALUE( "TX STREAM ARRAY: MATCHED TX stream SSRC = ", |
|
3469 tempStream->GetLocalSSRC() ); |
|
3470 |
|
3471 |
|
3472 aStreamAddress = streamAddr; |
|
3473 aStreamType = ETxStream; |
|
3474 return KErrNone; |
|
3475 } |
|
3476 } |
|
3477 } |
|
3478 |
|
3479 return KErrNotFound; |
|
3480 } |
|
3481 |
|
3482 // --------------------------------------------------------------------------- |
|
3483 // TBool CRtpSession::FindStreamForSSRC() |
|
3484 // Finds if a send stream is already using the given SSRC |
|
3485 // --------------------------------------------------------------------------- |
|
3486 // |
|
3487 TBool CRtpSession::FindStreamForSSRC( TRtpSSRC aSSRC ) |
|
3488 { |
|
3489 TInt index; |
|
3490 TInt totalRxStream = iStreamRxArray->Count(); |
|
3491 TInt totalTxStream = iStreamTxArray->Count(); |
|
3492 |
|
3493 if ( totalRxStream > 0 ) |
|
3494 { |
|
3495 for ( index = 0; index < totalRxStream; index++ ) |
|
3496 { |
|
3497 CRtpRecvStream* tempStream = reinterpret_cast<CRtpRecvStream*>( |
|
3498 iStreamRxArray->At( index ).GetStreamAddress() ); |
|
3499 if ( tempStream->GetLocalSSRC() == aSSRC ) |
|
3500 { |
|
3501 |
|
3502 RTP_DEBUG_DETAIL_DVALUE( "RX STREAM ARRAY: SSRC Being Used = ", aSSRC ); |
|
3503 |
|
3504 |
|
3505 return ETrue; |
|
3506 } |
|
3507 } |
|
3508 } |
|
3509 |
|
3510 if ( totalTxStream > 0 ) |
|
3511 { |
|
3512 for ( index = 0; index < totalTxStream; index++ ) |
|
3513 { |
|
3514 CRtpTranStream* tempStream = reinterpret_cast<CRtpTranStream*>( |
|
3515 iStreamTxArray->At( index ).GetStreamAddress() ); |
|
3516 if ( tempStream->GetLocalSSRC() == aSSRC ) |
|
3517 { |
|
3518 RTP_DEBUG_DETAIL_DVALUE( "TX STREAM ARRAY: SSRC Being Used = ", aSSRC ); |
|
3519 |
|
3520 |
|
3521 return ETrue; |
|
3522 } |
|
3523 } |
|
3524 } |
|
3525 return EFalse; |
|
3526 } |
|
3527 |
|
3528 // --------------------------------------------------------------------------- |
|
3529 // TBool CRtpSession::FindTxStreamForSSRC() |
|
3530 // Finds if a send stream is already using the given SSRC |
|
3531 // --------------------------------------------------------------------------- |
|
3532 // |
|
3533 TBool CRtpSession::FindTxStreamForSSRC( TRtpSSRC aSSRC, |
|
3534 CRtpTranStream** streamPointerPointer ) |
|
3535 { |
|
3536 TInt index( 0 ); |
|
3537 TInt totalTxStream( iStreamTxArray->Count() ); |
|
3538 |
|
3539 if ( totalTxStream > 0 ) |
|
3540 { |
|
3541 for ( index = 0; index < totalTxStream; index++ ) |
|
3542 { |
|
3543 CRtpTranStream* tempStream = reinterpret_cast<CRtpTranStream*>( |
|
3544 iStreamTxArray->At( index ).GetStreamAddress() ); |
|
3545 if ( tempStream->GetLocalSSRC() == aSSRC ) |
|
3546 { |
|
3547 RTP_DEBUG_DETAIL_DVALUE( "TX STREAM ARRAY: SSRC Being Used = ", aSSRC ); |
|
3548 |
|
3549 if ( streamPointerPointer ) |
|
3550 { |
|
3551 // put the address of the CRtpTranStream object into the |
|
3552 // specified pointer |
|
3553 *streamPointerPointer = tempStream; |
|
3554 } |
|
3555 return ETrue; |
|
3556 } |
|
3557 } |
|
3558 } |
|
3559 |
|
3560 return EFalse; |
|
3561 } |
|
3562 |
|
3563 // --------------------------------------------------------------------------- |
|
3564 // TBool CRtpSession::RcvStreamActive() |
|
3565 // checks if a receive stream is active |
|
3566 // --------------------------------------------------------------------------- |
|
3567 // |
|
3568 TBool CRtpSession::RcvStreamActive( TInt aIndex ) |
|
3569 { |
|
3570 CRtpRecvStream* tempRcvStream = reinterpret_cast<CRtpRecvStream*>( |
|
3571 iStreamRxArray->At( aIndex ).GetStreamAddress() ); |
|
3572 if ( !tempRcvStream->FirstPkg() ) |
|
3573 { |
|
3574 return ETrue; |
|
3575 } |
|
3576 else |
|
3577 { |
|
3578 return EFalse; |
|
3579 } |
|
3580 } |
|
3581 |
|
3582 // --------------------------------------------------------------------------- |
|
3583 // TBool CRtpSession::AnyRcvStreamReceivedRtpPacket() |
|
3584 // checks if any receive stream has received an RTP packet |
|
3585 // --------------------------------------------------------------------------- |
|
3586 // |
|
3587 TBool CRtpSession::AnyRcvStreamReceivedRtpPacket() |
|
3588 { |
|
3589 TInt totalRcvStream = iStreamRxArray->Count(); |
|
3590 for ( TInt index = 0; index < totalRcvStream; index++ ) |
|
3591 { |
|
3592 CRtpRecvStream* tempRcvStream = reinterpret_cast<CRtpRecvStream*>( |
|
3593 iStreamRxArray->At( index ).GetStreamAddress() ); |
|
3594 if ( tempRcvStream->ReceivedRTPPackets() ) |
|
3595 { |
|
3596 return ETrue; |
|
3597 } |
|
3598 } |
|
3599 return EFalse; |
|
3600 } |
|
3601 |
|
3602 |
|
3603 // --------------------------------------------------------------------------- |
|
3604 // TBool CRtpSession::RcvStreamReceivedRtpPacket() |
|
3605 // checks if a receive stream has received an RTP packet |
|
3606 // --------------------------------------------------------------------------- |
|
3607 // |
|
3608 TBool CRtpSession::RcvStreamReceivedRtpPacket( TInt aIndex ) |
|
3609 { |
|
3610 CRtpRecvStream* tempRcvStream = reinterpret_cast<CRtpRecvStream*>( |
|
3611 iStreamRxArray->At( aIndex ).GetStreamAddress() ); |
|
3612 if ( tempRcvStream->ReceivedRTPPackets() ) |
|
3613 { |
|
3614 return ETrue; |
|
3615 } |
|
3616 else |
|
3617 { |
|
3618 return EFalse; |
|
3619 } |
|
3620 } |
|
3621 |
|
3622 // --------------------------------------------------------------------------- |
|
3623 // CRtpRecvStream* CRtpSession::GetRcvStreamByIndex() |
|
3624 // gets a receive stream based on an index value |
|
3625 // --------------------------------------------------------------------------- |
|
3626 // |
|
3627 CRtpRecvStream* CRtpSession::GetRcvStreamByIndex( TInt aIndex ) |
|
3628 { |
|
3629 CRtpRecvStream* tempRcvStream = reinterpret_cast<CRtpRecvStream*>( |
|
3630 iStreamRxArray->At( aIndex ).GetStreamAddress() ); |
|
3631 return tempRcvStream; |
|
3632 } |
|
3633 |
|
3634 // --------------------------------------------------------------------------- |
|
3635 // TBool CRtpSession::DoAddSdesToEmptyArrayL() |
|
3636 // Adds a new SDES object to the SDES array |
|
3637 // --------------------------------------------------------------------------- |
|
3638 // |
|
3639 CRtpSDES* CRtpSession::DoAddSdesToArrayL( TRtpPacketIOParam* aExtractParam ) |
|
3640 { |
|
3641 if ( !iRtcpEnabled ) |
|
3642 { |
|
3643 return NULL; |
|
3644 } |
|
3645 |
|
3646 CRtpSDES* tempSdes = CRtpSDES::NewL(); |
|
3647 CleanupStack::PushL( tempSdes ); |
|
3648 // check for empty SDES sections |
|
3649 for ( TInt k = 0; k < ERTCP_NUM_OF_SDES_ITEMS; k++ ) |
|
3650 { |
|
3651 if ( ( aExtractParam->TRTCP_SDES.sdesItemsSize[k] ) > 0 ) |
|
3652 { |
|
3653 TRtpUtil::Strcpy( tempSdes->iSDESItems[k], |
|
3654 aExtractParam->TRTCP_SDES.sdesItems[k] ); |
|
3655 tempSdes->iSDESItemsSize[k] = |
|
3656 aExtractParam->TRTCP_SDES.sdesItemsSize[k]; |
|
3657 } |
|
3658 } |
|
3659 iSdesArray->AppendL( tempSdes ); |
|
3660 CleanupStack::Pop( tempSdes ); |
|
3661 return tempSdes; |
|
3662 } |
|
3663 |
|
3664 // --------------------------------------------------------------------------- |
|
3665 // TBool CRtpSession::CompareAndUpdateSdes() |
|
3666 // Compares the specified SDES values with the ones in the parameters and |
|
3667 // updates the SDES where the values differ, starting from the specified index |
|
3668 // --------------------------------------------------------------------------- |
|
3669 // |
|
3670 TBool CRtpSession::CompareAndUpdateSdes( CRtpSDES* aTempSdes, |
|
3671 TRtpPacketIOParam* aExtractParam, |
|
3672 TBool aUpdateCName ) |
|
3673 { |
|
3674 TBool updatedSdes( EFalse ); |
|
3675 TInt startValue( 0 ); |
|
3676 if ( !aUpdateCName ) |
|
3677 { |
|
3678 startValue = 1; |
|
3679 } |
|
3680 for ( TInt k = startValue; k < ERTCP_NUM_OF_SDES_ITEMS; k++ ) |
|
3681 { |
|
3682 if ( ( aExtractParam->TRTCP_SDES.sdesItemsSize[k] ) > 0 ) |
|
3683 { |
|
3684 TPtrC8 s2( _L8( aTempSdes->iSDESItems[k] ) ); |
|
3685 if ( s2.Compare( _L8( aExtractParam->TRTCP_SDES.sdesItems[k] ) ) |
|
3686 != 0 ) |
|
3687 { |
|
3688 TRtpUtil::Strcpy( aTempSdes->iSDESItems[k], |
|
3689 aExtractParam->TRTCP_SDES.sdesItems[k] ); |
|
3690 aTempSdes->iSDESItemsSize[k] = |
|
3691 aExtractParam->TRTCP_SDES.sdesItemsSize[k]; |
|
3692 updatedSdes = ETrue; |
|
3693 } |
|
3694 } |
|
3695 } |
|
3696 return updatedSdes; |
|
3697 } |
|
3698 |
|
3699 // --------------------------------------------------------------------------- |
|
3700 // TBool CRtpSession::AddSdesToArrayL() |
|
3701 // adds SDES object to SDES array if it is new SDES or updates SDES information |
|
3702 // if it has changed |
|
3703 // --------------------------------------------------------------------------- |
|
3704 // |
|
3705 TBool CRtpSession::AddSdesToArrayL( TUint& aSdesAddress, |
|
3706 TRtpPacketIOParam* aExtractParam ) |
|
3707 { |
|
3708 if ( !iRtcpEnabled ) |
|
3709 { |
|
3710 return EFalse; |
|
3711 } |
|
3712 |
|
3713 TBool fFoundSDES( EFalse ); |
|
3714 TBool fUpdatedSDES( EFalse ); |
|
3715 CRtpSDES* tempSdes = NULL; |
|
3716 // find if SDES exists or has been changed |
|
3717 TInt totalSdes( iSdesArray->Count() ); |
|
3718 |
|
3719 if ( totalSdes == 0 ) |
|
3720 { |
|
3721 // First SDES item, add it to the array |
|
3722 aSdesAddress = |
|
3723 reinterpret_cast<TUint>( DoAddSdesToArrayL( aExtractParam ) ); |
|
3724 return ETrue; |
|
3725 } |
|
3726 |
|
3727 // SDES items exist, check if this one needs to be added |
|
3728 TBool bExit = EFalse; |
|
3729 |
|
3730 for ( TInt index = 0; index < totalSdes && !bExit; index++ ) |
|
3731 { |
|
3732 tempSdes = iSdesArray->At( index ); |
|
3733 // assuming CNAME is always included and does not change, |
|
3734 // then a new SDES will have a different CNAME |
|
3735 |
|
3736 if ( ( aExtractParam->TRTCP_SDES. |
|
3737 sdesItemsSize[ERTCP_SDES_CNAME] ) == 0 ) |
|
3738 { |
|
3739 return EFalse; |
|
3740 } |
|
3741 |
|
3742 TPtrC8 s1( _L8( tempSdes->iSDESItems[ERTCP_SDES_CNAME] ) ); |
|
3743 if ( s1.Compare( _L8( aExtractParam->TRTCP_SDES. |
|
3744 sdesItems[ERTCP_SDES_CNAME] ) ) == 0 ) |
|
3745 { |
|
3746 fFoundSDES = ETrue; |
|
3747 bExit = ETrue; |
|
3748 // Update SDES, but exclude CName |
|
3749 fUpdatedSDES = CompareAndUpdateSdes( tempSdes, aExtractParam, |
|
3750 EFalse ); |
|
3751 } |
|
3752 } |
|
3753 |
|
3754 if ( !fFoundSDES ) // new SDES, must add it to the array |
|
3755 { |
|
3756 aSdesAddress = |
|
3757 reinterpret_cast<TUint>( DoAddSdesToArrayL( aExtractParam ) ); |
|
3758 return ETrue; |
|
3759 } |
|
3760 else if ( fUpdatedSDES ) |
|
3761 { |
|
3762 aSdesAddress = reinterpret_cast<TUint>( tempSdes ); |
|
3763 return EFalse; |
|
3764 } |
|
3765 else |
|
3766 { |
|
3767 return EFalse; |
|
3768 } |
|
3769 } |
|
3770 |
|
3771 // --------------------------------------------------------------------------- |
|
3772 // TInt CRtpSession::RemoveSdesFromArray() |
|
3773 // Removes SDES object from SDES array |
|
3774 // --------------------------------------------------------------------------- |
|
3775 // |
|
3776 TInt CRtpSession::RemoveSdesFromArray( TRtpSSRC aSSRC ) |
|
3777 { |
|
3778 if ( !iRtcpEnabled ) |
|
3779 { |
|
3780 return KErrGeneral; |
|
3781 } |
|
3782 |
|
3783 TInt totalSdes( iSdesArray->Count() ); |
|
3784 |
|
3785 for ( TInt index = 0; index < totalSdes; index++ ) |
|
3786 { |
|
3787 CRtpSDES* tempSdes = iSdesArray->At( index ); |
|
3788 if ( tempSdes->GetSdesSsrc( aSSRC ) ) |
|
3789 { |
|
3790 delete tempSdes; |
|
3791 iSdesArray->Delete( index ); |
|
3792 iSdesArray->Compress(); |
|
3793 |
|
3794 |
|
3795 RTCP_DEBUG_DETAIL_DVALUE( "SDES ARRAY: Remove SDES Info for SSRC = ", aSSRC ); |
|
3796 |
|
3797 |
|
3798 return KErrNone; |
|
3799 } |
|
3800 } |
|
3801 return KErrNotFound; |
|
3802 } |
|
3803 |
|
3804 // --------------------------------------------------------------------------- |
|
3805 // CRtpSession::NextRtcpInterval() |
|
3806 // calculates new RTCP interval which depends on number of |
|
3807 // sender and receiver in session (see RFC 1889 for description) |
|
3808 // --------------------------------------------------------------------------- |
|
3809 // |
|
3810 void CRtpSession::NextRtcpInterval() |
|
3811 { |
|
3812 if ( !iRtcpEnabled ) |
|
3813 { |
|
3814 return; |
|
3815 } |
|
3816 |
|
3817 TUint senders( 0 ); |
|
3818 TUint rtcpBandwidth( static_cast<TUint>( iBandWidth * iFraction ) ); |
|
3819 TUint members( iTotalParticipantsSession ); |
|
3820 |
|
3821 |
|
3822 RTCP_DEBUG_DETAIL_DVALUE( "CRtpSession::NextRtcpInterval - total participants = ", |
|
3823 iTotalParticipantsSession ); |
|
3824 |
|
3825 |
|
3826 senders = iNumOfRxStreams + iNumOfTxStreams; |
|
3827 |
|
3828 if ( senders > 0 && senders < members * KRtpDefaultSenderBWFrac ) |
|
3829 { |
|
3830 if ( iNumOfTxStreams ) |
|
3831 { |
|
3832 rtcpBandwidth = static_cast<TUint> |
|
3833 ( rtcpBandwidth * KRtpDefaultSenderBWFrac ); |
|
3834 members = senders; |
|
3835 } |
|
3836 else |
|
3837 { |
|
3838 rtcpBandwidth = static_cast<TUint> |
|
3839 ( rtcpBandwidth * KRtpDefaultObserverBWFrac ); |
|
3840 members -= senders; |
|
3841 } |
|
3842 } |
|
3843 |
|
3844 |
|
3845 RTCP_DEBUG_DETAIL_DVALUE( "CRtpSession::NextRtcpInterval - members = ", |
|
3846 members ); |
|
3847 |
|
3848 RTCP_DEBUG_DETAIL_DVALUE( "CRtpSession::NextRtcpInterval - rtcpBandwidth = ", |
|
3849 rtcpBandwidth ); |
|
3850 |
|
3851 |
|
3852 // 1000 - milliseconds in one second |
|
3853 // 8 - bits in one byte |
|
3854 iRtcpTimeInterval = static_cast<TUint>( ( 1000 * iAverageRtcpSize * 8 * members ) |
|
3855 / rtcpBandwidth ); |
|
3856 if ( iRtcpTimeInterval < KMinRtcpTimeInterval ) |
|
3857 { |
|
3858 iRtcpTimeInterval = KMinRtcpTimeInterval; |
|
3859 } |
|
3860 TReal rtcpTimeInterval64 = iRtcpTimeInterval * ( Random64() + 0.5 ); |
|
3861 iRtcpTimeInterval = static_cast<TUint>( rtcpTimeInterval64 ); |
|
3862 iRtcpTimeInterval = static_cast<TUint>( iRtcpTimeInterval / KCompensationRtcp ); |
|
3863 |
|
3864 |
|
3865 RTCP_DEBUG_DETAIL_DVALUE( "CRtpSession::NextRtcpInterval - RTCP Interval (ms) = ", |
|
3866 iRtcpTimeInterval ); |
|
3867 |
|
3868 } |
|
3869 |
|
3870 // --------------------------------------------------------------------------- |
|
3871 // CRtpSession::AverageRtcpSize() |
|
3872 // updates average RTCP report size |
|
3873 // --------------------------------------------------------------------------- |
|
3874 // |
|
3875 void CRtpSession::AverageRtcpSize( TUint aRtcpReportSize ) |
|
3876 { |
|
3877 if ( !iRtcpEnabled ) |
|
3878 { |
|
3879 return; |
|
3880 } |
|
3881 |
|
3882 iAverageRtcpSize = ( aRtcpReportSize ) * KRtcpSizeGain + |
|
3883 ( iAverageRtcpSize * KRtcpSizeGainRemainder ); |
|
3884 |
|
3885 |
|
3886 RTCP_DEBUG_DETAIL_DVALUE( "RTCP: Actual RTCP report size ", aRtcpReportSize ); |
|
3887 RTCP_DEBUG_DETAIL_DVALUE( "RTCP: Average RTCP report size ", (TInt) iAverageRtcpSize ); |
|
3888 |
|
3889 } |
|
3890 |
|
3891 // --------------------------------------------------------------------------- |
|
3892 // CRtpSession::CheckRemoteSsrcL() |
|
3893 // SSRC collision handling |
|
3894 // --------------------------------------------------------------------------- |
|
3895 // |
|
3896 TInt CRtpSession::CheckRemoteSsrcL( TRtpSSRC& aSSRC ) |
|
3897 { |
|
3898 CRtpTranStream* tranStream; |
|
3899 TBuf8<15> buf; |
|
3900 TRtpSSRC ssrc( 0 ); |
|
3901 |
|
3902 // In case of collision, we change SSRC only once (RFC3550) |
|
3903 // So if we already jumped once, this function does nothing. |
|
3904 if ( iSSRCJumps > 0 ) |
|
3905 { |
|
3906 return KErrNone; |
|
3907 } |
|
3908 |
|
3909 if ( FindTxStreamForSSRC( aSSRC, &tranStream ) ) |
|
3910 { |
|
3911 // One of our Tx streams uses an SSRC value that collides with the |
|
3912 // specified value. |
|
3913 |
|
3914 RTCP_DEBUG_DETAIL( "RTCP: Jumping to new SSRC" ); |
|
3915 |
|
3916 |
|
3917 // Send a BYE packet for this SSRC |
|
3918 buf.Format( _L8( "SSRC collision" ) ); |
|
3919 buf.ZeroTerminate(); |
|
3920 ( void ) SendRtcpByePacketL( tranStream->GetStreamID(), buf ); |
|
3921 |
|
3922 // Find a new unoccupied SSRC |
|
3923 ssrc = GetUniqueSSRC(); |
|
3924 |
|
3925 // Take the new SSRC into use |
|
3926 tranStream->SetLocalSSRC( ssrc ); |
|
3927 if ( iDefaultSSRC == aSSRC ) |
|
3928 { |
|
3929 iDefaultSSRC = ssrc; |
|
3930 } |
|
3931 // Also let the receive stream know the new SSRC |
|
3932 aSSRC = ssrc; |
|
3933 |
|
3934 // Increment jump counter |
|
3935 iSSRCJumps++; |
|
3936 return 1; // a value larger than 0 indicates that the SSRC changed |
|
3937 } |
|
3938 return KErrNone; |
|
3939 } |
|
3940 |
|
3941 // --------------------------------------------------------------------------- |
|
3942 // CRtpSession::Random() |
|
3943 // Get a random 32-bit number |
|
3944 // --------------------------------------------------------------------------- |
|
3945 // |
|
3946 TInt CRtpSession::Random() |
|
3947 { |
|
3948 if ( iSeed == 0 ) |
|
3949 { |
|
3950 TTime tmp_time; |
|
3951 tmp_time.HomeTime(); |
|
3952 iSeed = tmp_time.Int64(); |
|
3953 } |
|
3954 return TRtpUtil::Random( iSeed ); |
|
3955 } |
|
3956 |
|
3957 // --------------------------------------------------------------------------- |
|
3958 // CRtpSession::Random64() |
|
3959 // Get a random 64-bit number |
|
3960 // --------------------------------------------------------------------------- |
|
3961 // |
|
3962 TReal CRtpSession::Random64() |
|
3963 { |
|
3964 if ( iSeed == 0 ) |
|
3965 { |
|
3966 TTime tmp_time; |
|
3967 tmp_time.HomeTime(); |
|
3968 iSeed = tmp_time.Int64(); |
|
3969 } |
|
3970 return TRtpUtil::FloatRandom( iSeed ); |
|
3971 } |
|
3972 |
|
3973 // --------------------------------------------------------------------------- |
|
3974 // CRtpSession::SSRC() |
|
3975 // Get Session default ssrc |
|
3976 // --------------------------------------------------------------------------- |
|
3977 // |
|
3978 TRtpSSRC CRtpSession::SSRC() const |
|
3979 { |
|
3980 return iDefaultSSRC; |
|
3981 }; |
|
3982 |
|
3983 // --------------------------------------------------------------------------- |
|
3984 // CRtpSession::GetSessionId() |
|
3985 // Get Session ID |
|
3986 // --------------------------------------------------------------------------- |
|
3987 // |
|
3988 TRtpId CRtpSession::GetSessionId() |
|
3989 { |
|
3990 return iSessionId; |
|
3991 } |
|
3992 |
|
3993 // --------------------------------------------------------------------------- |
|
3994 // CRtpSession::SendRTCPByewithBanedSSRCL() |
|
3995 // |
|
3996 // --------------------------------------------------------------------------- |
|
3997 // |
|
3998 void CRtpSession::SendRTCPByewithBanedSSRCL() |
|
3999 { |
|
4000 TInt count = iStreamTxArray->Count(); |
|
4001 |
|
4002 for ( TInt index( 0 ); index < count; index++ ) |
|
4003 { |
|
4004 |
|
4005 TBuf8<15> buf; |
|
4006 CRtpTranStream* tempStream = ( CRtpTranStream* ) |
|
4007 ( iStreamTxArray->At( index ).GetStreamAddress() ); |
|
4008 //when sending RTCP report will use the localSSRC |
|
4009 //here we want to sendRTCPBye with specific SSRC which baned |
|
4010 //so set back the original value at the end |
|
4011 TRtpSSRC originSSRC= tempStream->GetLocalSSRC(); |
|
4012 tempStream->SetLocalSSRC(iPktRcv->RtpPacketGetSSRC()); |
|
4013 buf.Format( _L8( "SSRC baned" ) ); |
|
4014 buf.ZeroTerminate(); |
|
4015 ( void ) SendRtcpByePacketL( tempStream->GetStreamID(), buf ); |
|
4016 tempStream->SetLocalSSRC(originSSRC); |
|
4017 } |
|
4018 } |
|
4019 |
|
4020 // --------------------------------------------------------------------------- |
|
4021 // CRtpSession::IsSrtp() |
|
4022 // |
|
4023 // --------------------------------------------------------------------------- |
|
4024 // |
|
4025 TBool CRtpSession::IsSrtp() |
|
4026 { |
|
4027 return iIsSrtp; |
|
4028 } |
|
4029 // --------------------------------------------------------------------------- |
|
4030 // CRtpSession::SendSRTCPReport(TRtpSSRC aSSRC) |
|
4031 // virtual function |
|
4032 // --------------------------------------------------------------------------- |
|
4033 // |
|
4034 void CRtpSession::SendSRTCPReportL(TRtpSSRC /*aSSRC*/) |
|
4035 { |
|
4036 //should not called base class |
|
4037 User::Leave(KErrNotSupported); |
|
4038 } |
|
4039 |
|
4040 // --------------------------------------------------------------------------- |
|
4041 // CRtpSession::CheckifBanded(TRtpSSRC aSSRC) |
|
4042 // |
|
4043 // --------------------------------------------------------------------------- |
|
4044 // |
|
4045 TBool CRtpSession::CheckifBanded() |
|
4046 { |
|
4047 TBool idFound = EFalse; |
|
4048 RTP_DEBUG_DETAIL( "CRtpSession::CheckifBanded Entry" ); |
|
4049 RTP_DEBUG_DETAIL_DVALUE( "iPktRcv->RtpPacketGetSSRC() =", iPktRcv->RtpPacketGetSSRC() ); |
|
4050 for ( TInt i=0; ( i<iRxSSRCArray.Count() && !idFound ); i++) |
|
4051 { |
|
4052 if( iRxSSRCArray[i] == iPktRcv->RtpPacketGetSSRC()) |
|
4053 { |
|
4054 idFound = ETrue; |
|
4055 } |
|
4056 } |
|
4057 //baned the packet send RTCP bye |
|
4058 // Originally it sent here but now it has to be removed |
|
4059 // in case of RTCP Bye packet flooding causing by intrusion |
|
4060 // also in RFC, it is not required. |
|
4061 RTP_DEBUG_DETAIL( "CRtpSession::CheckifBanded Exit" ); |
|
4062 return idFound; |
|
4063 } |
|
4064 |
|
4065 // --------------------------------------------------------------------------- |
|
4066 // CRtpSession::CheckRemoteAddr() |
|
4067 // |
|
4068 // --------------------------------------------------------------------------- |
|
4069 // |
|
4070 TBool CRtpSession::CheckRemoteAddr() |
|
4071 { |
|
4072 TBool isSetRemoteAddr=iCommNet->iReceiver[ERTPPort]->IsSetRemoteAdress(); |
|
4073 return isSetRemoteAddr; |
|
4074 } |
|
4075 |
|
4076 // --------------------------------------------------------------------------- |
|
4077 // CRtpSession::CreateRecvStream(TRtpSSRC aSSRC) |
|
4078 // |
|
4079 // --------------------------------------------------------------------------- |
|
4080 // |
|
4081 void CRtpSession::CreateNewRecvStreamL() |
|
4082 { |
|
4083 //create new rcvstream |
|
4084 //Related to RFC 3550 8.2 |
|
4085 |
|
4086 RTP_DEBUG_DETAIL( "CRtpSession::CreateNewRecvStream entry" ); |
|
4087 |
|
4088 if(iCommNet->iReceiver[ERTPPort]->IsSetRemoteAdress()) |
|
4089 { |
|
4090 RTP_DEBUG_DETAIL( "Packet comes from set remote address" ); |
|
4091 |
|
4092 if (iNumOfRxStreams<= KRtpLimitNumberOfRecvStream) |
|
4093 { |
|
4094 TRtpId newStreamId= iAssignUniqueID.AssignUniqueID(); |
|
4095 if (!iAssignUniqueID.AddStreamToSession(iSessionId, newStreamId)) |
|
4096 { |
|
4097 // It is valid RTP packet, not checking if stream created |
|
4098 TRAPD( err, CreateReceiveStreamL( newStreamId, iPktRcv->RtpPacketGetPayloadType() )); |
|
4099 if ( err != KErrNone ) |
|
4100 { |
|
4101 RTP_DEBUG_DETAIL( "error occured when tried to create Recv Stream" ); |
|
4102 return; |
|
4103 } |
|
4104 RTP_DEBUG_DETAIL( "Assign new Rx stream" ); |
|
4105 AssignRtpRxStreamL(); |
|
4106 } |
|
4107 } |
|
4108 //Can not create the Recv once it runs to the limit |
|
4109 //This is in case of device running out of memory |
|
4110 RTP_DEBUG_DETAIL( "Can not create new recv stream!" ); |
|
4111 RTP_DEBUG_DETAIL( "The number of Recv streams is over 100" ); |
|
4112 } |
|
4113 |
|
4114 else |
|
4115 { |
|
4116 //baned |
|
4117 RTP_DEBUG_DETAIL( "Band SSRC" ); |
|
4118 iPktRcv->SetType( ERTP ); |
|
4119 TRtpSSRC remoteSSRC( NULL ); |
|
4120 remoteSSRC = iPktRcv->RtpPacketGetSSRC(); |
|
4121 //Add to baned SSRC list |
|
4122 if (remoteSSRC ) |
|
4123 { |
|
4124 if (!CheckifBanded()) |
|
4125 { |
|
4126 //In the future it might also checked with SDES or CSRC |
|
4127 TRAPD( err, iRxSSRCArray.Append(remoteSSRC) ) ; |
|
4128 if ( err != KErrNone ) |
|
4129 { |
|
4130 RTP_DEBUG_DETAIL( "Error ocured where to append banded ssrc" ); |
|
4131 return; |
|
4132 } |
|
4133 RTP_DEBUG_DETAIL_DVALUE( "Band ssrc =", remoteSSRC ); |
|
4134 SendRTCPByewithBanedSSRCL(); |
|
4135 } |
|
4136 //abort packet |
|
4137 } |
|
4138 //abort packet |
|
4139 } |
|
4140 RTP_DEBUG_DETAIL( "CRtpSession::CreateNewRecvStream exit" ); |
|
4141 } |
|
4142 // End of File |
|
4143 |