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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 "rtpcomm.h" |
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23 |
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24 // ================= MEMBER FUNCTIONS ======================= |
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25 |
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26 // --------------------------------------------------------------------------- |
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27 // C++ default constructor can NOT contain any code, that |
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28 // might leave. |
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29 // --------------------------------------------------------------------------- |
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30 // |
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31 CRtpComm::CRtpComm() |
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32 { |
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33 } |
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34 |
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35 // --------------------------------------------------------------------------- |
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36 // Symbian 2nd phase constructor can leave. |
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37 // --------------------------------------------------------------------------- |
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38 // |
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39 void CRtpComm::ConstructL( TUint& aLocalPort, |
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40 RSocketServ& aSocketServ, |
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41 RConnection& aRConn, |
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42 const TCreateSessionParams& aParams, |
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43 MRtpErrNotify& aErrNotify, |
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44 TBool aEnableRtcp ) |
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45 { |
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46 |
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47 |
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48 RTP_DEBUG_DETAIL_DVALUE( "CRtpComm::ConstructL(), local port = ", aLocalPort ); |
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49 |
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50 TInt err( 0 ); |
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51 TBool bRequiredPortsOpen( EFalse ); |
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52 TUint dynLocalPort( aLocalPort ); |
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53 |
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54 if ( ( dynLocalPort % 2 ) != 0 ) |
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55 { |
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56 // If an odd number is supplied then the application should replace |
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57 // that number with the next lower (even) number to use as the base |
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58 // of the port pair. (RFC3550) |
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59 dynLocalPort--; |
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60 } |
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61 |
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62 if ( dynLocalPort == 0 ) // use default port |
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63 { |
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64 dynLocalPort = KDefaultLocalPort; |
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65 } |
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66 |
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67 TInetAddr localRtpAddress( dynLocalPort ); |
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68 TInetAddr localRtcpAddress( dynLocalPort + 1 ); |
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69 |
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70 // Open RTP socket |
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71 CleanupClosePushL( iSocket[ERTPPort] ); |
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72 err = iSocket[ERTPPort].Open( aSocketServ, |
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73 KAfInet, |
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74 KSockDatagram, |
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75 KProtocolInetUdp, |
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76 aRConn |
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77 ); |
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78 User::LeaveIfError( err ); |
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79 |
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80 if ( aEnableRtcp ) |
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81 { |
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82 // Open RTCP socket |
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83 CleanupClosePushL( iSocket[ERTCPPort] ); |
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84 err = iSocket[ERTCPPort].Open( aSocketServ, |
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85 KAfInet, |
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86 KSockDatagram, |
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87 KProtocolInetUdp, |
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88 aRConn |
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89 ); |
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90 User::LeaveIfError( err ); |
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91 } |
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92 |
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93 // Find consecutive ports for RTP and RTCP |
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94 while ( !bRequiredPortsOpen ) |
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95 { |
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96 err = iSocket[ERTPPort].SetLocalPort(dynLocalPort); |
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97 if ( err == KErrNone && aEnableRtcp ) |
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98 { |
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99 err = iSocket[ERTCPPort].SetLocalPort(dynLocalPort + 1 ); |
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100 } |
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101 if ( err == KErrNone ) |
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102 { |
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103 bRequiredPortsOpen = ETrue; |
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104 } |
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105 else |
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106 { |
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107 // RTP always uses even ports, so increment by 2 and retry. |
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108 dynLocalPort += 2; |
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109 if ( dynLocalPort >= KMaxLocalPort ) |
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110 { |
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111 // Reached maximum port number |
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112 User::LeaveIfError( KErrTooBig ); |
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113 } |
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114 } |
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115 } |
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116 |
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117 err = iSocket[ERTPPort].SetOpt( KSORecvBuf, KSOLSocket, |
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118 aParams.iSocketBufSize ); |
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119 User::LeaveIfError( err ); |
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120 |
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121 err = iSocket[ERTPPort].SetOpt( KSOSendBuf, KSOLSocket, aParams.iSocketBufSize ); |
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122 User::LeaveIfError( err ); |
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123 |
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124 err = iSocket[ERTPPort].SetOpt( KSoUdpSynchronousSend, KSolInetUdp, |
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125 ETrue ); |
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126 User::LeaveIfError( err ); |
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127 |
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128 if ( aEnableRtcp ) |
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129 { |
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130 err = iSocket[ERTCPPort].SetOpt( KSORecvBuf, KSOLSocket, |
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131 KSocketBufSize ); |
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132 User::LeaveIfError( err ); |
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133 |
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134 err = iSocket[ERTCPPort].SetOpt( KSOSendBuf, KSOLSocket, |
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135 KSocketBufSize ); |
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136 User::LeaveIfError( err ); |
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137 |
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138 err = iSocket[ERTCPPort].SetOpt( KSoUdpSynchronousSend, KSolInetUdp, |
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139 ETrue ); |
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140 User::LeaveIfError( err ); |
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141 } |
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142 |
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143 // Let the application know what port we ended up using |
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144 aLocalPort = dynLocalPort; |
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145 |
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146 RTP_DEBUG_DETAIL_DVALUE( "CRtpComm::ConstructL(), local port chosen = ", aLocalPort ); |
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147 |
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148 iPriority = aParams.iPriority; |
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149 iErrNotify = &aErrNotify; |
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150 iRtcpEnabled = aEnableRtcp; |
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151 iSocketSize = aParams.iSocketBufSize; |
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152 |
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153 // The sender and receiver objects are created separately |
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154 // in ConstructSenderL and ConstructReceiverL |
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155 |
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156 CleanupStack::Pop(); // iSocket[ERTPPort] |
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157 if ( aEnableRtcp ) |
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158 { |
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159 CleanupStack::Pop(); // iSocket[ERTCPPort] |
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160 } |
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161 } |
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162 |
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163 // --------------------------------------------------------------------------- |
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164 // Two-phased constructor. |
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165 // --------------------------------------------------------------------------- |
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166 // |
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167 CRtpComm* CRtpComm::NewL( TUint& aLocalPort, |
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168 RSocketServ& aSocketServ, |
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169 RConnection& aRConn, |
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170 const TCreateSessionParams& aParams, |
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171 MRtpErrNotify& aErrNotify, |
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172 TBool aEnableRtcp ) |
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173 { |
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174 CRtpComm* self = new ( ELeave ) CRtpComm(); |
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175 CleanupStack::PushL( self ); |
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176 self->ConstructL( aLocalPort, aSocketServ, aRConn, aParams, aErrNotify, |
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177 aEnableRtcp ); |
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178 CleanupStack::Pop(); //self |
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179 return self; |
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180 } |
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181 |
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182 // --------------------------------------------------------------------------- |
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183 // Destructor |
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184 // --------------------------------------------------------------------------- |
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185 // |
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186 CRtpComm::~CRtpComm() |
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187 { |
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188 for ( TInt k = 0; k < KMaxPorts; k++ ) |
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189 { |
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190 if ( iReceiver[ k ] ) |
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191 { |
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192 delete iReceiver[ k ]; |
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193 } |
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194 if ( iSender[ k ] ) |
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195 { |
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196 delete iSender[ k ]; |
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197 } |
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198 } |
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199 |
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200 Close(); |
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201 } |
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202 |
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203 // --------------------------------------------------------------------------- |
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204 // CRtpComm::ConstructSenderL() |
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205 // |
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206 // --------------------------------------------------------------------------- |
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207 // |
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208 void CRtpComm::ConstructSenderL(TInetAddr& aRtpAddr, TInetAddr& aRtcpAddr) |
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209 { |
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210 if ( !iSender[ERTPPort] ) |
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211 { |
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212 iSender[ERTPPort] = CRtpCommSend::NewL( iSocket[ERTPPort], *iErrNotify, |
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213 /*KMaxPackets * 1024,*/ aRtpAddr ); |
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214 } |
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215 if ( iRtcpEnabled && !iSender[ERTCPPort] ) |
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216 { |
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217 iSender[ERTCPPort] = CRtpCommSend::NewL( iSocket[ERTCPPort], |
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218 *iErrNotify, |
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219 /*KMaxPackets * 256,*/ aRtcpAddr ); |
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220 // Boost the priority of the RTCP transmission, to make sure those |
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221 // few packets reach their destination. |
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222 iSender[ERTCPPort]->SetPriority( TCreateSessionParams::EPriorityHigh ); |
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223 } |
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224 } |
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225 |
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226 // --------------------------------------------------------------------------- |
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227 // CRtpComm::ConstructReceiverL() |
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228 // |
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229 // --------------------------------------------------------------------------- |
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230 // |
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231 void CRtpComm::ConstructReceiverL(TBool aNonRtpObserverSet) |
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232 { |
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233 if ( !iReceiver[ERTPPort] ) |
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234 { |
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235 iReceiver[ERTPPort] = CRtpCommRecv::NewL( ERTPPort, iSocket[ERTPPort], |
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236 iPriority, *iErrNotify, aNonRtpObserverSet ); |
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237 iReceiver[ERTPPort]->RegisterReceivedNotify( iReceivedNotify ); |
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238 } |
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239 if ( iRtcpEnabled && !iReceiver[ERTCPPort] ) |
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240 { |
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241 iReceiver[ERTCPPort] = CRtpCommRecv::NewL( ERTCPPort, |
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242 iSocket[ERTCPPort], |
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243 TCreateSessionParams::EPriorityHigh, |
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244 *iErrNotify, aNonRtpObserverSet ); |
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245 iReceiver[ERTCPPort]->RegisterReceivedNotify( iReceivedNotify ); |
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246 } |
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247 } |
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248 |
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249 // --------------------------------------------------------------------------- |
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250 // CRtpComm::Close() |
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251 // |
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252 // --------------------------------------------------------------------------- |
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253 // |
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254 void CRtpComm::Close() |
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255 { |
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256 |
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257 for ( TInt k = 0; k < KMaxPorts; k++ ) |
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258 { |
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259 iSocket[k].Close(); |
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260 } |
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261 } |
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262 |
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263 // --------------------------------------------------------------------------- |
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264 // CRtpComm::SetToAddress() |
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265 // Return TRequestStatus.Int() |
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266 // --------------------------------------------------------------------------- |
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267 // |
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268 TInt CRtpComm::SetToAddress( TPortType aPortType, TInetAddr& aAddr ) |
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269 { |
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270 TInt ret = KErrNone; |
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271 |
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272 CRtpCommSend* aCommSend = iSender[aPortType]; |
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273 |
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274 if (aCommSend) |
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275 { |
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276 aCommSend->SetToAddress(aAddr); |
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277 } |
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278 |
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279 CRtpCommRecv* aCommRecv = iReceiver[aPortType]; |
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280 |
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281 if (aCommRecv) |
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282 { |
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283 aCommRecv->SetRemoteAddress(aAddr); |
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284 } |
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285 |
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286 return ret; |
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287 } |
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288 |
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289 // --------------------------------------------------------------------------- |
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290 // CRtpComm::SetAcceptedFromAddress() |
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291 // |
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292 // --------------------------------------------------------------------------- |
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293 // |
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294 void CRtpComm::SetAcceptedFromAddress(TInetAddr& aAddr) |
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295 { |
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296 iReceiver[ERTPPort]->SetRemoteAddress(aAddr); |
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297 |
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298 if ( iRtcpEnabled && iReceiver[ERTCPPort] ) |
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299 { |
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300 iReceiver[ERTCPPort]->SetRemoteAddress(aAddr); |
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301 } |
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302 } |
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303 |
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304 // --------------------------------------------------------------------------- |
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305 // CRtpComm::SetNonRtpObserverFlag() |
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306 // |
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307 // --------------------------------------------------------------------------- |
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308 // |
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309 void CRtpComm::SetNonRtpObserverFlag(TBool aValue) |
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310 { |
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311 if (iReceiver[ERTPPort] ) |
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312 { |
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313 iReceiver[ERTPPort]->SetNonRtpObserverFlag(aValue); |
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314 } |
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315 if (iReceiver[ERTCPPort] ) |
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316 { |
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317 iReceiver[ERTCPPort]->SetNonRtpObserverFlag(aValue); |
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318 } |
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319 } |
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320 |
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321 // --------------------------------------------------------------------------- |
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322 // CRtpComm::MaxSocketSize() |
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323 // |
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324 // --------------------------------------------------------------------------- |
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325 // |
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326 TInt CRtpComm::MaxSocketSize() |
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327 { |
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328 return iSocketSize; |
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329 } |
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330 |
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331 // --------------------------------------------------------------------------- |
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332 // CRtpComm::Send() |
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333 // |
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334 // --------------------------------------------------------------------------- |
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335 // |
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336 TInt CRtpComm::Send( TPortType aPortType, const TDesC8& aSendBuf ) |
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337 { |
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338 TInt result( KErrNotReady ); |
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339 if ( iSender[aPortType] ) |
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340 { |
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341 result = iSender[aPortType]->Send( aSendBuf ); |
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342 } |
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343 return result; |
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344 } |
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345 |
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346 // --------------------------------------------------------------------------- |
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347 // CRtpComm::Send() |
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348 // |
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349 // --------------------------------------------------------------------------- |
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350 // |
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351 void CRtpComm::Send( TPortType aPortType, const TDesC8& aSendBuf, TRequestStatus& aStatus ) |
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352 { |
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353 if ( iSender[aPortType] ) |
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354 { |
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355 iSender[aPortType]->Send( aSendBuf, aStatus ); |
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356 } |
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357 else |
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358 { |
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359 TRequestStatus* status = &aStatus; |
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360 User::RequestComplete( status, KErrNotReady ); |
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361 } |
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362 } |
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363 |
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364 // --------------------------------------------------------------------------- |
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365 // CRtpComm::CancelSend() |
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366 // |
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367 // --------------------------------------------------------------------------- |
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368 // |
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369 void CRtpComm::CancelSend( TPortType aPortType ) |
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370 { |
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371 if ( iSender[aPortType] ) |
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372 { |
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373 iSender[aPortType]->CancelAsyncSend(); |
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374 } |
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375 } |
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376 |
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377 // --------------------------------------------------------------------------- |
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378 // CRtpComm::Receive() |
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379 // |
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380 // --------------------------------------------------------------------------- |
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381 // |
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382 TInt CRtpComm::Receive( TPortType aPortType, TDes8& aRecvBuf ) |
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383 { |
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384 TInt result( KErrNotReady ); |
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385 if ( iReceiver[aPortType] ) |
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386 { |
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387 result = iReceiver[aPortType]->Recv( aRecvBuf ); |
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388 } |
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389 return result; |
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390 } |
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391 |
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392 // --------------------------------------------------------------------------- |
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393 // CRtpComm::RegisterReceivedNotify() |
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394 // |
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395 // --------------------------------------------------------------------------- |
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396 // |
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397 void CRtpComm::RegisterReceivedNotify( MReceivedNotify* aNotify ) |
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398 { |
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399 iReceivedNotify = aNotify; |
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400 if ( iReceiver[ERTPPort] ) |
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401 { |
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402 iReceiver[ERTPPort]->RegisterReceivedNotify( aNotify ); |
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403 } |
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404 if ( iReceiver[ERTCPPort] ) |
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405 { |
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406 iReceiver[ERTCPPort]->RegisterReceivedNotify( aNotify ); |
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407 } |
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408 } |
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409 |
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410 // --------------------------------------------------------------------------- |
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411 // RSocket* CRtpComm::GetSocketObject() |
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412 // |
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413 // --------------------------------------------------------------------------- |
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414 // |
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415 RSocket* CRtpComm::GetSocket( TPortType aPortType ) |
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416 { |
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417 return &iSocket[aPortType]; |
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418 } |
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419 |
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420 // End of File |