1 /* |
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2 * Copyright (c) 2007 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 the License "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: Class that takes packet from buffer and does not put them* |
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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 // INCLUDE FILES |
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21 #include "CCRNullSink.h" |
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22 #include "CCRPacketBuffer.h" |
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23 #include "CCRStreamingSession.h" |
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24 #include "CCRTimer.h" |
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25 #include "MCRConnectionObserver.h" |
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26 #include "videoserviceutilsLogger.h" |
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27 |
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28 // CONSTANTS |
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29 // None |
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30 |
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31 // ============================ MEMBER FUNCTIONS =============================== |
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32 |
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33 // ----------------------------------------------------------------------------- |
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34 // CCRNullSink::NewL |
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35 // Two-phased constructor. |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 CCRNullSink* CCRNullSink::NewL( |
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39 CCRStreamingSession::TCRSinkId aSinkId, |
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40 CCRStreamingSession& aOwningSession ) |
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41 { |
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42 CCRNullSink* self = new( ELeave ) CCRNullSink( aSinkId, aOwningSession ); |
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43 CleanupStack::PushL( self ); |
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44 self->ConstructL(); |
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45 CleanupStack::Pop( self ); |
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46 return self; |
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47 } |
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48 |
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49 // ----------------------------------------------------------------------------- |
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50 // CCRNullSink::CCRNullSink |
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51 // C++ default constructor can NOT contain any code, that might leave. |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 CCRNullSink::CCRNullSink( |
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55 CCRStreamingSession::TCRSinkId aSinkId, |
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56 CCRStreamingSession& aOwningSession ) |
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57 : CCRPacketSinkBase( aOwningSession, aSinkId ) |
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58 { |
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59 // None |
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60 } |
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61 |
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62 // ----------------------------------------------------------------------------- |
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63 // CCRNullSink::ConstructL |
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64 // 2nd phase. |
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65 // ----------------------------------------------------------------------------- |
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66 // |
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67 void CCRNullSink::ConstructL() |
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68 { |
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69 // None |
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70 } |
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71 |
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72 // ----------------------------------------------------------------------------- |
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73 // CCRNullSink::~CCRNullSink |
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74 // Destructor. |
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75 // ----------------------------------------------------------------------------- |
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76 // |
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77 CCRNullSink::~CCRNullSink() |
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78 { |
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79 delete iSdp; |
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80 delete iFlowTimer; |
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81 iBuffer = NULL; // does not delete and it is right thing. |
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82 } |
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83 |
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84 // ----------------------------------------------------------------------------- |
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85 // CCRNullSink::SetSdpL |
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86 // as a side-effect causes parsing of the sdp. |
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87 // ----------------------------------------------------------------------------- |
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88 // |
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89 void CCRNullSink::SetSdpL( const TDesC8& aSdp ) |
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90 { |
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91 LOG1( "CCRNullSink::SetSdpL(), aSdp len: %d", aSdp.Length() ); |
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92 |
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93 delete iSdp; iSdp = NULL; |
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94 iSdp = aSdp.AllocL(); |
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95 iOwningSession.PlayCommand( KRealZero, KRealMinusOne ); |
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96 } |
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97 |
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98 // ----------------------------------------------------------------------------- |
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99 // CCRNullSink::NewPacketAvailable |
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100 // |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 void CCRNullSink::NewPacketAvailable() |
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104 { |
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105 if ( iBuffer ) |
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106 { |
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107 TPtr8 packet( NULL, 0 ); |
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108 MCRPacketSource::TCRPacketStreamId streamId; |
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109 const TInt book( iBuffer->GetStream( iSinkId, streamId ) ); |
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110 iBuffer->GetPacket( book, packet ); |
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111 const TUint8* pointer( &packet[2] ); |
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112 TInt seq( BigEndian::Get16( pointer ) ); |
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113 LOG2( "CCRNullSink::NewPacketAvailable(), streamId: %u, seq: %u", |
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114 streamId, seq ); |
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115 // Keep buffer size reasonable |
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116 iBuffer->HandleBufferSize(); |
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117 |
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118 // Handle flow control |
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119 if ( !iBuffer->ContinousStream() && !iFlowTimer ) |
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120 { |
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121 TRAPD( err, iFlowTimer = CCRTimer::NewL( CActive::EPriorityLow, *this ) ); |
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122 if ( !err ) |
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123 { |
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124 if ( iBuffer->PacketsCount( iSinkId ) > KErrNotFound ) |
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125 { |
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126 iFlowTimer->After( 0 ); |
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127 } |
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128 else |
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129 { |
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130 iFlowTimer->At( 2e6 ); |
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131 } |
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132 } |
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133 else |
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134 { |
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135 delete iFlowTimer; iFlowTimer = NULL; |
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136 } |
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137 } |
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138 } |
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139 } |
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140 |
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141 // ----------------------------------------------------------------------------- |
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142 // CCRNullSink::TimerExpired |
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143 // ----------------------------------------------------------------------------- |
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144 // |
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145 void CCRNullSink::TimerExpired( CCRTimer* /*aTimer*/ ) |
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146 { |
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147 if ( iBuffer->PacketsCount( iSinkId ) > KErrNotFound ) |
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148 { |
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149 NewPacketAvailable(); |
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150 } |
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151 else |
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152 { |
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153 iOwningSession.SourceRestore(); |
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154 } |
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155 |
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156 delete iFlowTimer; iFlowTimer = NULL; |
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157 } |
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158 |
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159 // ----------------------------------------------------------------------------- |
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160 // CCRNullSink::RegisterConnectionObs |
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161 // ----------------------------------------------------------------------------- |
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162 // |
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163 void CCRNullSink::RegisterConnectionObs( MCRConnectionObserver* aObserver ) |
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164 { |
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165 iObserver = aObserver; |
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166 } |
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167 |
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168 // ----------------------------------------------------------------------------- |
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169 // CCRNullSink::StatusChanged |
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170 // ----------------------------------------------------------------------------- |
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171 // |
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172 void CCRNullSink::StatusChanged( MCRPacketSource::TCRPacketSourceState aNewState ) |
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173 { |
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174 if( iObserver ) |
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175 { |
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176 TCRTestSinkData data = aNewState==MCRPacketSource::ERtpStateIdle ? ECRTestSinkStateIdle : |
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177 aNewState==MCRPacketSource::ERtpStateSdpAvailable ? ECRTestSinkStateSdpAvailable : |
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178 aNewState==MCRPacketSource::ERtpStateSeqAndTSAvailable ? ECRTestSinkStateSeqAndTSAvailable : |
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179 aNewState==MCRPacketSource::ERtpStatePlaying ? ECRTestSinkStatePlaying : |
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180 /*aNewState==MCRPacketSource::ERtpStateClosing?*/ ECRTestSinkStateClosing; |
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181 |
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182 LOG3( "CCRNullSink::StatusChanged: newState=%d -> ECRTestSinkData, checksum=%d, data=%d", |
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183 (TInt)aNewState, (TInt)iOwningSession.SourceChecksum(), (TInt)data ); |
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184 iObserver->ConnectionStatusChange( iOwningSession.SourceChecksum(), |
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185 MCRConnectionObserver::ECRTestSinkData, |
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186 (TInt)data ); |
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187 } |
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188 } |
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189 |
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190 |
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191 // End of File |
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