1 /* |
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2 * Copyright (c) 2006-2007 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 "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: ?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 #include <AudioPreference.h> |
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20 |
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21 #include "irbuffercontainer.h" |
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22 #include "irctrlcmdobserver.h" |
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23 #include "irdebug.h" |
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24 #include "irmediaenginebuffer.h" |
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25 #include "irmp3player.h" |
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26 #include "irmp3playerlocal.h" |
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27 |
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28 #ifdef __WINS__ |
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29 #include "irtestingaudioplayer.h" |
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30 #endif //__WINS__ |
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31 |
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32 |
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33 |
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34 // Constants |
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35 const TInt KZero = 0; |
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36 const TInt KOne = 1; |
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37 const TInt KTwo = 2; |
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38 const TInt KThree = 3; |
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39 |
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40 const TInt KTwentyFour = 24; |
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41 const TInt KSixteen = 16; |
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42 const TInt KEight = 8; |
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43 const TInt KSamplesPerFrame1 = 576; |
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44 const TInt KSamplesPerFrame2 = 1152; |
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45 const TInt KOneFourFour = 144; |
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46 const TInt KThousand = 1000; |
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47 |
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48 // ============================ MEMBER FUNCTIONS =============================== |
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49 |
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50 // --------------------------------------------------------------------------- |
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51 // Function : NewL |
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52 // function returns an instance of CIRMP3Player |
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53 // Two phase constructor |
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54 // --------------------------------------------------------------------------- |
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55 // |
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56 CIRMP3Player* CIRMP3Player::NewL() |
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57 { |
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58 IRLOG_DEBUG( "CIRMP3Player::NewL" ); |
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59 CIRMP3Player* self = CIRMP3Player::NewLC(); |
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60 CleanupStack::Pop(self); |
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61 IRLOG_DEBUG( "CIRMP3Player::NewL - Exiting." ); |
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62 return self; |
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63 } |
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64 |
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65 // --------------------------------------------------------------------------- |
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66 // Function : NewLC |
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67 // function creates an instance of CIRMP3Player |
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68 // Two phase constructor |
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69 // --------------------------------------------------------------------------- |
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70 // |
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71 CIRMP3Player* CIRMP3Player::NewLC() |
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72 { |
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73 IRLOG_DEBUG( "CIRMP3Player::NewLC" ); |
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74 CIRMP3Player* self = new (ELeave) CIRMP3Player; |
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75 CleanupStack::PushL(self); |
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76 self->ConstructL(); |
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77 IRLOG_DEBUG( "CIRMP3Player::NewLC - Exiting." ); |
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78 return self; |
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79 } |
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80 |
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81 // --------------------------------------------------------------------------- |
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82 // Function : ~CIRMP3Player |
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83 // Default Destructor |
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84 // --------------------------------------------------------------------------- |
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85 // |
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86 CIRMP3Player::~CIRMP3Player() |
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87 { |
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88 IRLOG_DEBUG( "CIRMP3Player::~CIRMP3Player" ); |
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89 //delete the instance of the player |
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90 delete iAudioPlayer; |
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91 |
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92 #ifdef __WINS__ |
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93 if(iTestingAudioPlayer) |
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94 { |
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95 iTestingAudioPlayer->Close(); |
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96 delete iTestingAudioPlayer; |
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97 iTestingAudioPlayer = NULL; |
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98 } |
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99 CActiveScheduler::Delete(iTestingAudioPlayer); |
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100 |
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101 #endif //__WINS__ |
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102 |
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103 while(!iSinkBufferQ.IsEmpty()) |
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104 { |
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105 //Deleting all the entries in sink buffers queue |
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106 iTempBufferHolder = iSinkBufferQ.First(); |
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107 iSinkBufferQ.Remove(*iTempBufferHolder); |
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108 delete iTempBufferHolder; |
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109 } |
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110 while(!iSourceBufferQ.IsEmpty()) |
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111 { |
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112 //deleting all the entries in source buffers queue |
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113 iTempBufferHolder = iSourceBufferQ.First(); |
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114 iSourceBufferQ.Remove(*iTempBufferHolder); |
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115 delete iTempBufferHolder; |
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116 } |
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117 IRLOG_DEBUG( "CIRMP3Player::~CIRMP3Player - Exiting." ); |
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118 } |
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119 //Function for Play control |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // Function : Play |
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123 // function to which intiate the player |
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124 // --------------------------------------------------------------------------- |
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125 // |
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126 void CIRMP3Player::Play() |
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127 { |
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128 IRLOG_DEBUG( "CIRMP3Player::Play" ); |
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129 //! then we have to stop it then restart the play from begining |
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130 if ( EPlaying == iState ) |
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131 { |
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132 //internally stopped before playing so no need of sending |
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133 //stop status |
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134 iSkipPlayCompleted = ETrue; |
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135 |
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136 #ifdef __WINS__ |
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137 iTestingAudioPlayer->Stop(); |
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138 #else |
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139 iAudioPlayer->Stop(); |
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140 #endif //__WINS__ |
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141 |
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142 iSkipPlayCompleted = EFalse; |
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143 } |
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144 iState = ENotReady; |
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145 iStopState = EFalse; |
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146 iBufferPercentage = KZeroPercentage; |
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147 |
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148 //note : using TRAP_IGNORE to suppress a codescanner warning |
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149 //"Ignoring the return value from Open() functions" |
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150 //this cannot be checked as this symbian API returns void |
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151 #ifdef __WINS__ |
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152 TRAP_IGNORE ( iTestingAudioPlayer->Open() ); |
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153 #else |
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154 //opening the current player component |
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155 TRAP_IGNORE ( iAudioPlayer->Open(&iSettings) ); |
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156 #endif //__WINS__ |
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157 iChannel->SentRequest(EPlayingState,KErrNone); |
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158 IRLOG_DEBUG( "CIRMP3Player::Play - Exiting." ); |
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159 } |
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160 |
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161 // --------------------------------------------------------------------------- |
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162 // Function : Stop |
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163 // function to which stop the player |
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164 // --------------------------------------------------------------------------- |
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165 // |
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166 void CIRMP3Player::Stop() |
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167 { |
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168 IRLOG_DEBUG( "CIRMP3Player::Stop" ); |
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169 //If the current state is playing |
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170 if ( EPlaying == iState ) |
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171 { |
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172 #ifdef __WINS__ |
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173 iTestingAudioPlayer->Stop(); |
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174 #else |
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175 iAudioPlayer->Stop(); |
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176 #endif //__WINS__ |
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177 |
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178 } |
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179 else |
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180 { |
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181 IRRDEBUG2("CIRMP3Player::Stop EStoppedPlaying", KNullDesC); |
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182 //sending the updated status as stopped |
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183 iChannel->SentRequest( EStoppedPlaying, KErrNone ); |
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184 } |
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185 iState = EReadyToPlay; |
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186 iStopState = ETrue; |
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187 IRLOG_DEBUG( "CIRMP3Player::Stop - Exiting." ); |
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188 } |
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189 |
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190 //Functions for Volume Control |
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191 |
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192 // --------------------------------------------------------------------------- |
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193 // Function : SetVolume |
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194 // function to set the volume |
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195 // --------------------------------------------------------------------------- |
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196 // |
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197 void CIRMP3Player::SetVolume(TInt aVolume ) |
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198 { |
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199 IRLOG_DEBUG( "CIRMP3Player::SetVolume" ); |
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200 //! If volume should be less than maximum value and greater than or equal to zero then set the volume |
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201 if( KZeroVolume <= aVolume && iAudioPlayer->MaxVolume() >= aVolume ) |
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202 { |
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203 iAudioPlayer->SetVolume( aVolume ); |
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204 iConfig.iVolume = iCurrentVolume = aVolume; |
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205 } |
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206 IRLOG_DEBUG( "CIRMP3Player::SetVolume - Exiting." ); |
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207 } |
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208 |
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209 // --------------------------------------------------------------------------- |
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210 // Function : MaxVolume |
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211 // function to returns the maximum volume |
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212 // --------------------------------------------------------------------------- |
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213 // |
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214 TInt CIRMP3Player::MaxVolume() const |
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215 { |
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216 IRLOG_DEBUG( "CIRMP3Player::MaxVolume" ); |
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217 return iAudioPlayer->MaxVolume(); |
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218 } |
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219 |
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220 // --------------------------------------------------------------------------- |
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221 // Function : Volume |
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222 // function to returns the volume, integer level of volume is the Output |
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223 // --------------------------------------------------------------------------- |
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224 // |
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225 TInt CIRMP3Player::Volume() const |
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226 { |
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227 IRLOG_DEBUG( "CIRMP3Player::Volume" ); |
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228 return iAudioPlayer->Volume(); |
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229 } |
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230 |
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231 //Intialization of Codec Settings |
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232 |
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233 // --------------------------------------------------------------------------- |
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234 // Function: Intialize |
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235 // Set the codec type and sampling rate channel of stream |
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236 // This is set to initial settings which is required to start the player |
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237 // --------------------------------------------------------------------------- |
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238 // |
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239 void CIRMP3Player::Intialize(TConfig& aConfig,TUint8* aInitParams, |
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240 CIRCtrlCmdObserver* aChannel) |
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241 { |
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242 IRLOG_DEBUG( "CIRMP3Player::Intialize" ); |
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243 iInputBufferPtr = reinterpret_cast<TUint8*> (aInitParams); //instance of buffer |
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244 iConfig = aConfig; //! Set all the configuration information like volume |
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245 iPlayBufferSize = iConfig.iPlayBufferSize; |
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246 iInputBufferSize = iConfig.iPlayBufferCount*iPlayBufferSize; |
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247 iBufferOffset = iPlayBufferSize; |
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248 iDataType.Set(KMMFFourCCCodeMP3); //! Set the data type as MP3 |
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249 iChannel = reinterpret_cast<CIRCtrlCmdObserver*> (aChannel); |
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250 TRAPD(err,CreateBufferL()); // allocates buffer to the queue |
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251 if( err ) |
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252 { |
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253 IRRDEBUG2("CIRMP3Player::Intialize - EError", KNullDesC); |
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254 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
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255 return; |
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256 } |
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257 iChannel->SentRequest(EPlayerChanged,KErrNone); //creates an instance of the player |
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258 IRLOG_DEBUG( "CIRMP3Player::Intialize - Exiting." ); |
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259 } |
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260 |
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261 // --------------------------------------------------------------------------- |
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262 // Function: StopPlayerBuffering |
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263 // Function is used to stop buffering |
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264 // --------------------------------------------------------------------------- |
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265 // |
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266 void CIRMP3Player::StopPlayerBuffering() |
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267 { |
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268 IRLOG_DEBUG( "CIRMP3Player::StopPlayerBuffering" ); |
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269 //stops the player from buffering |
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270 iStopPlayerBuffering = ETrue; |
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271 } |
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272 |
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273 // --------------------------------------------------------------------------- |
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274 // Function: BufferFilled |
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275 // Function which is called when network gets the buffer filled with data |
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276 // --------------------------------------------------------------------------- |
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277 // |
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278 void CIRMP3Player::BufferFilled() |
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279 { |
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280 IRLOG_DEBUG( "CIRMP3Player::BufferFilled" ); |
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281 if( !iNewPlayer ) |
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282 { |
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283 if( !iSourceBufferQ.IsEmpty() ) |
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284 { |
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285 //! Initially all unfilled buffers are in source buffer Queue |
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286 //! Once the buffer in the source buffer queue is filled it is moved to queue of buffer |
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287 //! to the sink |
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288 iTempBufferHolder = iSourceBufferQ.First(); |
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289 iSourceBufferQ.Remove(*iTempBufferHolder); |
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290 iSinkBufferQ.AddLast(*iTempBufferHolder); |
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291 } |
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292 } |
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293 |
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294 if( iFirstTime ) |
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295 { |
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296 if( !iNewPlayer ) |
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297 { |
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298 // During rebuffering only |
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299 if( !iSourceBufferQ.IsEmpty() ) |
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300 { |
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301 //if source buffer is empty |
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302 //first buffer of source buffer is taken and refilled |
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303 iTempBufferHolder = iSourceBufferQ.First(); |
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304 iTempbuffer = iTempBufferHolder->Des(); |
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305 iInputBuffer.Set(iTempbuffer,iPlayBufferSize,iPlayBufferSize); |
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306 if( iStopState ) |
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307 { |
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308 IRLOG_DEBUG( "CIRMP3Player::BufferFilled - Exiting (1)." ); |
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309 return; |
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310 } |
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311 if( !iStopPlayerBuffering ) |
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312 { |
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313 //Calls the fill the buffer for next subsequent times |
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314 //until the source buffer queue is empty |
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315 iChannel->FilltheBuffer(iInputBuffer); |
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316 } |
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317 else |
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318 { |
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319 IRLOG_DEBUG( "CIRMP3Player::BufferFilled - Exiting (2)." ); |
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320 //if stopPlayerBuffering is set it has return without buffering |
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321 return; |
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322 } |
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323 } |
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324 else |
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325 { |
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326 //once it is rebuffered it has trigger play |
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327 //it has to indicate that rebuffering has completed for client |
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328 |
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329 TInt err( KErrNone ); |
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330 if( !iReBuffering ) |
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331 { |
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332 GetMP3AudioProperties(); |
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333 //Sets the audio properties of the player like sampling rate and channel |
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334 TRAP(err, iAudioPlayer->SetAudioPropertiesL(iSettings.iSampleRate, |
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335 iSettings.iChannels)); |
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336 if ( err ) |
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337 { |
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338 IRRDEBUG2("CIRMP3Player::BufferFilled - EError", KNullDesC); |
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339 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
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340 IRLOG_DEBUG( "CIRMP3Player::BufferFilled - Exiting (3)." ); |
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341 return; |
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342 } |
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343 } |
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344 iReBuffering = EFalse; |
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345 //buffer reached 100% headers are decoded ready to play |
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346 iBufferPercentage = K100Percentage; |
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347 iChannel->SentRequest( EBufferFillStop, iBufferPercentage ); |
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348 |
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349 if( !iSinkBufferQ.IsEmpty() ) |
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350 { |
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351 iTempBufferHolder = iSinkBufferQ.First(); |
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352 } |
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353 iTempbuffer = iTempBufferHolder->Des(); |
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354 |
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355 //Take first source buffer queue to be filled |
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356 iInput.Set(iTempbuffer,iPlayBufferSize,iPlayBufferSize); |
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357 iFirstTime = EFalse; |
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358 iState = EPlaying; |
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359 if( !iStopState ) |
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360 { |
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361 |
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362 #ifdef __WINS__ |
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363 iTestingAudioPlayer->Write(); |
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364 #else |
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365 //writing to mmp based buffer to trigger play |
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366 TRAP(err,iAudioPlayer->WriteL(iInput)); |
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367 |
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368 if( err ) |
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369 { |
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370 //error condition |
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371 IRRDEBUG2("CIRMP3Player::BufferFilled - EError1", KNullDesC); |
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372 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
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373 IRLOG_DEBUG( "CIRMP3Player::BufferFilled - Exiting (4)." ); |
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374 return; |
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375 } |
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376 #endif //__WINS__ |
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377 } |
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378 //! Calls the play for the first time after rebuffering |
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379 |
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380 } |
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381 } |
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382 else |
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383 { |
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384 //First time when the player is created |
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385 TInt err( KErrNone ); |
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386 GetMP3AudioProperties(); |
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387 |
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388 //! Sets the audio properties of the player like sampling rate and channel |
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389 //Sets the audio properties of the player like sampling rate and channel |
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390 TRAP(err, iAudioPlayer->SetAudioPropertiesL(iSettings.iSampleRate, |
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391 iSettings.iChannels)); |
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392 if ( err ) |
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393 { |
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394 IRRDEBUG2("CIRMP3Player::BufferFilled - EError2", KNullDesC); |
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395 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
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396 IRLOG_DEBUG( "CIRMP3Player::BufferFilled - Exiting (5)." ); |
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397 return; |
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398 } |
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399 //buffer percentage is 100% |
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400 iBufferPercentage = K100Percentage; |
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401 //indicating it has rebuffered |
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402 iChannel->SentRequest( EBufferFadeInReady, iBufferPercentage ); |
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403 |
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404 if( !iSinkBufferQ.IsEmpty() ) |
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405 { |
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406 iTempBufferHolder = iSinkBufferQ.First(); |
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407 } |
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408 iTempbuffer = iTempBufferHolder->Des(); |
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409 |
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410 //first buffer of sink is taken and played |
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411 iInput.Set(iTempbuffer,iPlayBufferSize,iPlayBufferSize); |
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412 iNewPlayer = EFalse; |
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413 iFirstTime = EFalse; |
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414 iState = EPlaying; |
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415 |
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416 //Calls the play for the first time |
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417 if( !iStopState ) |
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418 { |
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419 #ifdef __WINS__ |
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420 iTestingAudioPlayer->Write(); |
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421 #else |
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422 //writing to MMF buffers |
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423 TRAP(err,iAudioPlayer->WriteL(iInput)); |
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424 if( err ) |
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425 { |
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426 IRRDEBUG2("CIRMP3Player::BufferFilled - EError3", KNullDesC); |
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427 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
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428 IRLOG_DEBUG( "CIRMP3Player::BufferFilled - Exiting (6)." ); |
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429 return; |
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430 } |
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431 #endif //__WINS__ |
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432 } |
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433 } |
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434 } |
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435 IRLOG_DEBUG( "CIRMP3Player::BufferFilled - Exiting (7)." ); |
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436 } |
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437 |
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438 // --------------------------------------------------------------------------- |
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439 // Function: CIRMP3Player |
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440 // This function is the default constructor |
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441 // --------------------------------------------------------------------------- |
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442 // |
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443 CIRMP3Player::CIRMP3Player() : iInputBuffer(NULL,0,0), iInput(NULL,0,0) |
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444 { |
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445 IRLOG_DEBUG( "CIRMP3Player::CIRMP3Player" ); |
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446 } |
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447 |
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448 // --------------------------------------------------------------------------- |
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449 // Function: ConstructL |
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450 // Two phase constructor is used to intialize data members |
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451 // Function can leave if CMdaAudioOutputStream::NewL leaves |
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452 // --------------------------------------------------------------------------- |
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453 // |
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454 void CIRMP3Player::ConstructL() |
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455 { |
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456 IRLOG_DEBUG( "CIRMP3Player::ConstructL" ); |
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457 |
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458 iAudioPlayer = CMdaAudioOutputStream::NewL(*this,KAudioPriorityRealOnePlayer, |
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459 (TMdaPriorityPreference)KAudioPrefRealOneStreaming ); |
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460 |
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461 //creates an instance of the player |
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462 |
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463 #ifdef __WINS__ |
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464 iTestingAudioPlayer = CIRTestingAudioPlayer::NewL(*this); |
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465 CActiveScheduler::Add(iTestingAudioPlayer); |
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466 #endif //__WINS__ |
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467 |
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468 TInt f_off = _FOFF(CIRBufferContainer,iLink); //for the buffer queue which is maintained |
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469 |
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470 iSinkBufferQ.SetOffset(f_off); //It is Queue of buffer used by media Sink |
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471 iSourceBufferQ.SetOffset(f_off); // Source of buffer which is ready to fill |
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472 |
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473 iNewPlayer = ETrue; //indicates that this a newly created player |
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474 iStopPlayerBuffering = EFalse; //indicates whether to stop buffering |
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475 iState = ENotReady; //current state not ready |
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476 iNeedReBuffering = EFalse;//if rebuffering is required this is to set true |
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477 iStopState = EFalse; // |
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478 IRLOG_DEBUG( "CIRMP3Player::ConstructL - Exiting." ); |
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479 } |
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480 |
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481 // --------------------------------------------------------------------------- |
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482 // Function: CreateBufferL |
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483 // Created buffers in sink buffer queue and allocates memory to sink buffer queues |
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484 // --------------------------------------------------------------------------- |
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485 // |
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486 void CIRMP3Player::CreateBufferL() |
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487 { |
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488 IRLOG_DEBUG( "CIRMP3Player::CreatebufferL" ); |
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489 TUint8* bufferaddress = iInputBufferPtr; |
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490 //! source buffers not created since initially all buffers are filled with data and is ready to play |
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491 //! Created buffers in sink buffer queue and allocates memory to sink buffer queues |
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492 for(TInt buffercount = 0; buffercount < KIRInputBufferCount; buffercount++) |
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493 { |
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494 iTempBufferHolder = CIRBufferContainer::NewL(bufferaddress, |
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495 iPlayBufferSize); |
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496 iSinkBufferQ.AddLast(*iTempBufferHolder); |
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497 bufferaddress += iBufferOffset; |
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498 } |
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499 IRLOG_DEBUG( "CIRMP3Player::CreatebufferL - Exiting." ); |
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500 } |
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501 |
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502 // --------------------------------------------------------------------------- |
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503 // Function: ReCreateBufferL |
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504 // Recreates buffers of source queue |
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505 // --------------------------------------------------------------------------- |
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506 // |
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507 void CIRMP3Player::ReCreateBufferL() |
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508 { |
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509 IRLOG_DEBUG( "CIRMP3Player::ReCreateBufferL " ); |
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510 while(!iSinkBufferQ.IsEmpty()) |
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511 { |
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512 //Deleting all the entries in sink buffers queue |
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513 iTempBufferHolder = iSinkBufferQ.First(); |
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514 iSinkBufferQ.Remove(*iTempBufferHolder); |
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515 delete iTempBufferHolder; |
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516 iTempBufferHolder = NULL; |
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517 } |
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518 while(!iSourceBufferQ.IsEmpty()) |
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519 { |
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520 //deleting all the entries in source buffers queue |
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521 iTempBufferHolder = iSourceBufferQ.First(); |
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522 iSourceBufferQ.Remove(*iTempBufferHolder); |
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523 delete iTempBufferHolder; |
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524 iTempBufferHolder = NULL; |
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525 } |
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526 TUint8* bufferaddress = iInputBufferPtr; |
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527 //reallocates the buffer to source buffer queue |
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528 for(TInt buffercount = 0; buffercount < KIRInputBufferCount; buffercount++) |
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529 { |
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530 iTempBufferHolder = CIRBufferContainer::NewL(bufferaddress, |
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531 iPlayBufferSize); |
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532 iSourceBufferQ.AddLast(*iTempBufferHolder); |
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533 bufferaddress += iBufferOffset; |
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534 } |
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535 IRLOG_DEBUG( "CIRMP3Player::ReCreateBufferL - Exiting." ); |
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536 } |
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537 |
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538 |
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539 // --------------------------------------------------------------------------- |
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540 // Function: GetMP3AudioProperties |
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541 // extract all the information required to start the play from the stream |
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542 // --------------------------------------------------------------------------- |
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543 // |
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544 void CIRMP3Player::GetMP3AudioProperties() |
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545 { |
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546 IRLOG_DEBUG( "CIRMP3Player::GetMP3AudioProperties" ); |
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547 //Decoding MP3 header |
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548 DoFindnDecodeMP3Header(); |
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549 |
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550 //! Sets the sampling rate and channel information to data members |
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551 switch(iAudioInfo.iSamplingRate) |
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552 { |
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553 case EMp3SamplingFreq8000: //sampling frequency 8000 |
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554 { |
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555 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate8000Hz; |
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556 } |
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557 break; |
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558 case EMp3SamplingFreq11025: //sampling frequency 11025 |
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559 { |
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560 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate11025Hz; |
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561 } |
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562 break; |
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563 case EMp3SamplingFreq12000: //sampling frequency 12000 |
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564 { |
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565 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate12000Hz; |
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566 } |
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567 break; |
|
568 case EMp3SamplingFreq16000: //sampling frequency 16000 |
|
569 { |
|
570 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate16000Hz; |
|
571 } |
|
572 break; |
|
573 case EMp3SamplingFreq22050: //sampling frequency 22050 |
|
574 { |
|
575 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate22050Hz; |
|
576 } |
|
577 break; |
|
578 case EMp3SamplingFreq24000: //sampling frequency 24000 |
|
579 { |
|
580 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate24000Hz; |
|
581 } |
|
582 break; |
|
583 case EMp3SamplingFreq32000: //sampling frequency 32000 |
|
584 { |
|
585 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate32000Hz; |
|
586 } |
|
587 break; |
|
588 case EMp3SamplingFreq44100: //sampling frequency 44100 |
|
589 { |
|
590 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate44100Hz; |
|
591 } |
|
592 break; |
|
593 case EMp3SamplingFreq48000: //sampling frequency 48000 |
|
594 { |
|
595 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate48000Hz; |
|
596 } |
|
597 break; |
|
598 default: //default sampling frequency 22050 |
|
599 { |
|
600 iSettings.iSampleRate = TMdaAudioDataSettings::ESampleRate22050Hz; |
|
601 } |
|
602 break; |
|
603 } |
|
604 //sets the channel information |
|
605 if( KMp3ChannelMono == iAudioInfo.iChannel ) //0 indicates mono |
|
606 { |
|
607 iSettings.iChannels = TMdaAudioDataSettings::EChannelsMono; |
|
608 } |
|
609 else //else 1 it indicates it is stereo |
|
610 { |
|
611 iSettings.iChannels = TMdaAudioDataSettings::EChannelsStereo; |
|
612 } |
|
613 IRLOG_DEBUG( "CIRMP3Player::GetMP3AudioProperties - Exiting." ); |
|
614 } |
|
615 |
|
616 // --------------------------------------------------------------------------- |
|
617 // Function: DoFindnDecodeMP3Header |
|
618 // Function is used to find the mp3 header and decode the mp3 header |
|
619 // This function do have hard coded values and these value remains as such |
|
620 // as long as the standard remains, so used as such |
|
621 // --------------------------------------------------------------------------- |
|
622 // |
|
623 void CIRMP3Player::DoFindnDecodeMP3Header() |
|
624 { |
|
625 IRLOG_DEBUG( "CIRMP3Player::DoFindnDecodeMP3Header" ); |
|
626 //first buffer is discarded |
|
627 TUint8* input = iInputBufferPtr; |
|
628 //end ptr is calculated |
|
629 TUint8* endptr = iInputBufferPtr + iInputBufferSize; |
|
630 |
|
631 //holds the 4 bytes of data |
|
632 TUint value = 0; //value zero is intialized |
|
633 TBool headerfound = EFalse; |
|
634 |
|
635 //value are to hardcoded as this is the standard way of implement |
|
636 // the MP3 header decoding |
|
637 while( input < endptr && !headerfound ) |
|
638 { |
|
639 //stepsuccess indicates the success in each step or stage of header decoding, |
|
640 //incase of failure we will not go for next step |
|
641 TBool stepsuccess = EFalse; |
|
642 //initially no header is found |
|
643 //assign the value to zero initially for clearing the value |
|
644 //then assign next 32 bits of data to value |
|
645 value = 0; //value is cleared |
|
646 value |= input[0]<<KTwentyFour; //first 8 bit is shift 24bits copied (or) to "value" |
|
647 value |= input[1]<<KSixteen; //second 8 bit is shift 24bits copied (or) to "value" |
|
648 value |= input[2]<<KEight;//third 8 bit is shift 24bits copied (or) to "value" |
|
649 value |= input[KThree];//last 8 bit is shift 24bits copied (or) to "value" |
|
650 |
|
651 // sync bytes found |
|
652 // for performance reasons check already that it is not data within an empty frame (all bits set) |
|
653 // therefore check wether the bits for bitrate are all set -> means that this is no header |
|
654 if ( (input[0] == 0xFF) && ( ( input[1] & 0xE0 ) == 0xE0 ) && ( ( input[2] & 0xF0 ) != 0xF0 ) ) |
|
655 { |
|
656 //header is found |
|
657 //first level of header decoding is success, so stepsuccess = ETrue |
|
658 stepsuccess = ETrue; |
|
659 //version information is stored in 2 bits starting from 19th bit of header |
|
660 //two get only 2bits we are doing an AND operation with 0b011 (0x03) |
|
661 TInt index = (value >> 19) & 0x03; |
|
662 //! Gets the version information of MPEG |
|
663 |
|
664 TInt version = index; //MPEG 2.5 00 |
|
665 //reservered 01 |
|
666 //MPEG 2 10 |
|
667 //MPEG 1 11 |
|
668 //if header information is 0x01 |
|
669 iAudioInfo.iVersion = version; |
|
670 if( 0x01 == iAudioInfo.iVersion ) |
|
671 { |
|
672 //bit pattern 0x01 indicates that version is reserved |
|
673 // and is considered as incorrect header information |
|
674 stepsuccess = EFalse; |
|
675 } |
|
676 |
|
677 else |
|
678 { |
|
679 //bit pattern 0x00 indictes MPEG version is 2.5 |
|
680 //bit pattern 0x10 indictes MPEG version is 2 |
|
681 //MPEG 2.5 (0x00) and MPEG 2 (0x10) version |
|
682 if( (0x00 == iAudioInfo.iVersion) || |
|
683 (0x02 == iAudioInfo.iVersion) ) |
|
684 { |
|
685 //576 samples per frame |
|
686 //there is 576 samples per frame |
|
687 iAudioInfo.iSamplesPerFrame = KSamplesPerFrame1; |
|
688 } |
|
689 else |
|
690 { |
|
691 //MPEG 1 version (0x11) |
|
692 //for MPEG 1 there is 1152 samples per frame |
|
693 iAudioInfo.iSamplesPerFrame = KSamplesPerFrame2; |
|
694 } |
|
695 } |
|
696 |
|
697 if( stepsuccess ) |
|
698 { |
|
699 //layer information from the header is obtained from 2 bits starting 17th Bit |
|
700 //information is extracted to index. |
|
701 index = ( value >> 17 ) & 0x03; |
|
702 if( 0x01 != index ) //Layer 3 check if its layer 2 to layer 1 |
|
703 { //we will consider the header is not proper |
|
704 stepsuccess = EFalse; |
|
705 } |
|
706 else |
|
707 { |
|
708 iAudioInfo.iLayer = 2; //Layer 3 |
|
709 //for selection bitrate we have need a combination of MPEG version, layer information |
|
710 //and selection bits. the selection bits starts from 12th bits of mp3 header |
|
711 //the selection byte is extracted into the index |
|
712 index = (value >> 12) & 0x000F; |
|
713 TInt versionindex = 0; |
|
714 if( 0x11 == version ) |
|
715 { |
|
716 //index of the array is 0 |
|
717 versionindex = 0; |
|
718 } |
|
719 else |
|
720 { |
|
721 //index of array is 1 |
|
722 versionindex = 1; |
|
723 } |
|
724 //getting the bit rate |
|
725 iAudioInfo.iBitRate = |
|
726 KBitRate[versionindex][iAudioInfo.iLayer][index]; |
|
727 if( iAudioInfo.iBitRate == 0 ) //since bit rate is zero we consider as header is not proper |
|
728 { |
|
729 stepsuccess = EFalse; |
|
730 } |
|
731 } |
|
732 } |
|
733 |
|
734 if( stepsuccess ) |
|
735 { |
|
736 //sampling rate is obtained by a combination of MPEG version and |
|
737 //selection bits. There are 2 selection bits starting from 10th bit |
|
738 //and is extracted (AND with 0x03) from header and stored in index |
|
739 index = ( value >> 10 ) & 0x03; |
|
740 |
|
741 //! Gets the sampling frequency |
|
742 iAudioInfo.iSamplingRate = |
|
743 KMP3SamplingRate[iAudioInfo.iVersion][index]; |
|
744 if( 0 == iAudioInfo.iSamplingRate ) //if sampling rate is 0 it is invalidated |
|
745 { |
|
746 stepsuccess = EFalse; |
|
747 } |
|
748 //padding information is obtained from 9th bit of mp3 header |
|
749 iAudioInfo.iPadding = (value >> 9) & 0x01; //padding |
|
750 |
|
751 //the information for selection of channel is stored in 2bits starting from 6th bit of |
|
752 //mp3 header and is decoded and kept in index for selection of channel |
|
753 index = ( value >> 6 ) & 0x0003; |
|
754 iAudioInfo.iChannel = KChannelInfo[index]; //0 for mono and 1 for stereo |
|
755 |
|
756 //framesize = (144 * bitrate)/(padding + sampling rate) |
|
757 if( stepsuccess ) |
|
758 {//multiplication of 1000 is to convert kbs to bs |
|
759 iAudioInfo.iFrameSize = (KOneFourFour * iAudioInfo.iBitRate * KThousand) |
|
760 /(iAudioInfo.iPadding + iAudioInfo.iSamplingRate); |
|
761 } |
|
762 //cross checking the header with next header |
|
763 //both sampling frequency matches the function will return ETrue else EFalse |
|
764 if( !CrossCheckHeader(input) ) |
|
765 { |
|
766 stepsuccess = EFalse; |
|
767 } |
|
768 } |
|
769 if( stepsuccess ) |
|
770 { |
|
771 //header is found |
|
772 headerfound = ETrue; |
|
773 } |
|
774 else |
|
775 { |
|
776 //header is not found |
|
777 input++; |
|
778 } |
|
779 } // sync bytes found |
|
780 else |
|
781 { |
|
782 //header sync bits doesn't match |
|
783 input++; |
|
784 } |
|
785 } |
|
786 IRLOG_DEBUG( "CIRMP3Player::DoFindnDecodeMP3Header - Exiting." ); |
|
787 } |
|
788 |
|
789 // --------------------------------------------------------------------------- |
|
790 // Function: CrossCheckHeader |
|
791 // Function is cross checks sampling rate |
|
792 // This function do have hard coded values and these value remains as such |
|
793 // as long as the standard remains, so used as such |
|
794 // --------------------------------------------------------------------------- |
|
795 // |
|
796 TBool CIRMP3Player::CrossCheckHeader(TUint8* aInput) |
|
797 { |
|
798 IRLOG_DEBUG( "CIRMP3Player::CrossCheckHeader" ); |
|
799 if( !aInput ) |
|
800 { |
|
801 return EFalse; |
|
802 } |
|
803 //next header is to taken |
|
804 TUint8* input = aInput + iAudioInfo.iSamplesPerFrame; |
|
805 TUint8* endptr = iInputBufferPtr + iInputBufferSize |
|
806 - KMp3FrameHeaderSize; |
|
807 TUint32 samplingrate = 0; |
|
808 TBool headerfound = EFalse; |
|
809 |
|
810 TUint value = 0; |
|
811 TInt version = 0; |
|
812 TUint channel = 0; |
|
813 TUint layer = 0; |
|
814 while( input < endptr && !headerfound ) |
|
815 { |
|
816 //header is not found |
|
817 TInt successheader = EFalse; |
|
818 //assign the value to zero initially for clearing the value |
|
819 //then assign next 32 bits of data to value |
|
820 value = 0; |
|
821 value |= input[KZero]<<KTwentyFour; |
|
822 value |= input[KOne]<<KSixteen; |
|
823 value |= input[KTwo]<<KEight; |
|
824 value |= input[KThree]; |
|
825 |
|
826 // sync bytes found |
|
827 // for performance reasons check already that it is not data within an empty frame (all bits set) |
|
828 // therefore check wether the bits for bitrate are all set -> means that this is no header |
|
829 if ( (input[0] == 0xFF) && ( ( input[1] & 0xE0 ) == 0xE0 ) && ( ( input[2] & 0xF0 ) != 0xF0 ) ) |
|
830 { |
|
831 //header is obtained |
|
832 successheader = ETrue; |
|
833 //version information is stored in 2 bits starting from 19th bit of header |
|
834 //two get only 2bits we are doing an AND operation with 0b011 (0x03) |
|
835 TInt index = (value >> 19) & 0x03; |
|
836 //! Gets the version information of MPEG |
|
837 |
|
838 version = index; //MPEG 2.5 00 |
|
839 //reservered 01 |
|
840 //MPEG 2 10 |
|
841 //MPEG 1 11 |
|
842 //if header information is 0x01 |
|
843 if( 0x01 == version ) //indicates that version is reserved and is considered |
|
844 { //as incorrect header information |
|
845 //header is not valid |
|
846 successheader = EFalse; |
|
847 input++; |
|
848 headerfound = EFalse; |
|
849 } |
|
850 |
|
851 index = ( value >> 6 ) & 0x0003; |
|
852 channel = KChannelInfo[index]; //0 for mono and 1 for stereo |
|
853 |
|
854 index = ( value >> 17 ) & 0x03; |
|
855 if ( index == 0x01 ) |
|
856 layer = 2; |
|
857 |
|
858 if( successheader ) |
|
859 { |
|
860 //sampling rate is obtained by a combination of MPEG version and |
|
861 //selection bits. There are 2 selection bits starting from 10th bit |
|
862 //and is extracted (AND with 0x03) from header and stored in index |
|
863 index = (value >> 10) & 0x03; |
|
864 //! Gets the sampling frequency |
|
865 samplingrate = KMP3SamplingRate[version][index]; |
|
866 if( 0 == samplingrate ) //if sampling rate is 0 it is invalidated |
|
867 { |
|
868 //header is not valid |
|
869 input++; |
|
870 } |
|
871 else |
|
872 { |
|
873 //header is obtained |
|
874 headerfound = ETrue; |
|
875 } |
|
876 } |
|
877 } // sync bytes found |
|
878 else |
|
879 { |
|
880 //header is not valid |
|
881 input++; |
|
882 } |
|
883 } |
|
884 //if sampling rate match with one we initially decoded we return ETrue else EFalse |
|
885 // version change never possible |
|
886 // layer change never possible |
|
887 // sampling rate change never possible |
|
888 // from mono to stereo never possible |
|
889 if ( iAudioInfo.iSamplingRate == samplingrate && iAudioInfo.iVersion == version |
|
890 && iAudioInfo.iChannel == channel |
|
891 && iAudioInfo.iLayer == layer ) |
|
892 { |
|
893 IRLOG_DEBUG( "CIRMP3Player::CrossCheckHeader - Exiting (1)." ); |
|
894 return ETrue; |
|
895 } |
|
896 else |
|
897 { |
|
898 IRLOG_DEBUG( "CIRMP3Player::CrossCheckHeader - Exiting (2)."); |
|
899 return EFalse; |
|
900 } |
|
901 } |
|
902 |
|
903 |
|
904 //Call back functions |
|
905 |
|
906 // --------------------------------------------------------------------------- |
|
907 // Function: MaoscBufferCopied |
|
908 // call back to be implemented for using CMdaAudioOutputStream |
|
909 // Call as callback from the CMdaAudioOutputStream::WriteL |
|
910 // after frame work has copied stream to a buffer |
|
911 // --------------------------------------------------------------------------- |
|
912 // |
|
913 void CIRMP3Player::MaoscBufferCopied(TInt aError, const TDesC8& /*aBuffer*/) |
|
914 { |
|
915 IRLOG_DEBUG( "CIRMP3Player::MaoscBufferCopied" ); |
|
916 if( aError ) |
|
917 { |
|
918 IRLOG_ERROR2( "CIRMP3Player::MaoscBufferCopied - Error in buffering (%d)", aError ); |
|
919 //error in playing then return |
|
920 IRRDEBUG2("CIRMP3Player::MaoscBufferCopied - EError", KNullDesC); |
|
921 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
|
922 return; |
|
923 } |
|
924 else |
|
925 { |
|
926 if ( iCurrentVolume < iConfig.iVolume ) |
|
927 { |
|
928 iCurrentVolume = iConfig.iVolume; |
|
929 IRLOG_INFO2( "CIRMP3Player::MaoscBufferCopied - Setting volume to %d", iCurrentVolume ); |
|
930 iAudioPlayer->SetVolume( iCurrentVolume ); |
|
931 } |
|
932 if( iSinkBufferQ.IsEmpty() ) |
|
933 { |
|
934 //previously played buffer is empty |
|
935 //should never happen |
|
936 IRRDEBUG2("CIRMP3Player::MaoscBufferCopied - EError1", KNullDesC); |
|
937 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
|
938 return; |
|
939 } |
|
940 else |
|
941 { |
|
942 //previously played buffer is removed |
|
943 iTempBufferHolder = iSinkBufferQ.First(); |
|
944 //played buffer is removed from sink queue |
|
945 iSinkBufferQ.Remove(*iTempBufferHolder); |
|
946 //removed buffer is appended to end of source queue |
|
947 iSourceBufferQ.AddLast(*iTempBufferHolder); |
|
948 |
|
949 //the first buffer of the source buffer is given to refill |
|
950 if( !iSourceBufferQ.IsEmpty() ) |
|
951 { |
|
952 iTempBufferHolder = iSourceBufferQ.First(); |
|
953 } |
|
954 //if stop is called during rebuffering |
|
955 if( !iStopPlayerBuffering ) |
|
956 { |
|
957 // if player is stopped it has to stop buffering |
|
958 iTempbuffer = iTempBufferHolder->Des(); |
|
959 iInputBuffer.Set(iTempbuffer,iPlayBufferSize,iPlayBufferSize); |
|
960 iChannel->FilltheBuffer(iInputBuffer); |
|
961 } |
|
962 //if stop state we have to return |
|
963 if( iStopState ) |
|
964 { |
|
965 IRLOG_DEBUG( "CIRMP3Player::MaoscBufferCopied - Exiting (1)." ); |
|
966 //should continue this loop unless play is triggered |
|
967 return; |
|
968 } |
|
969 |
|
970 //plays buffer if there buffer to play |
|
971 if( !iSinkBufferQ.IsEmpty() ) |
|
972 { |
|
973 //sink Buffer queue has buffer to play |
|
974 iTempBufferHolder = iSinkBufferQ.First(); |
|
975 iTempbuffer = iTempBufferHolder->Des(); |
|
976 |
|
977 iInput.Set(iTempbuffer,iPlayBufferSize,iPlayBufferSize); |
|
978 |
|
979 #ifdef __WINS__ |
|
980 iTestingAudioPlayer->Write(); |
|
981 #else |
|
982 //writing to MMF buffer |
|
983 TRAPD(err,iAudioPlayer->WriteL(iInput)); |
|
984 |
|
985 if( err ) |
|
986 { |
|
987 IRRDEBUG2("CIRMP3Player::MaoscBufferCopied - EError2", KNullDesC); |
|
988 //if playing failed |
|
989 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
|
990 return; |
|
991 } |
|
992 #endif //__WINS__ |
|
993 } |
|
994 else |
|
995 { |
|
996 //rebuffering |
|
997 if( !iStopPlayerBuffering ) |
|
998 { |
|
999 //if sink buffer is empty |
|
1000 //we have to rebuffer |
|
1001 iReBuffering = ETrue; |
|
1002 Play(); |
|
1003 } |
|
1004 } |
|
1005 } |
|
1006 } |
|
1007 IRLOG_DEBUG( "CIRMP3Player::MaoscBufferCopied - Exiting (2)." ); |
|
1008 } |
|
1009 |
|
1010 // --------------------------------------------------------------------------- |
|
1011 // Function: MaoscPlayComplete |
|
1012 // call back to implement for using CMdaAudioOutputStream |
|
1013 // Call as callback from the CMdaAudioOutputStream::WriteL |
|
1014 // after play is completed |
|
1015 // --------------------------------------------------------------------------- |
|
1016 // |
|
1017 void CIRMP3Player::MaoscPlayComplete(TInt aError) |
|
1018 { |
|
1019 IRLOG_DEBUG( "CIRMP3Player::MaoscPlayComplete" ); |
|
1020 if( !iSkipPlayCompleted ) |
|
1021 { |
|
1022 IRRDEBUG2("CIRMP3Player::MaoscPlayComplete EStoppedPlaying", KNullDesC); |
|
1023 |
|
1024 //sending the stop status |
|
1025 iChannel->SentRequest( EStoppedPlaying, aError ); |
|
1026 } |
|
1027 IRLOG_DEBUG( "CIRMP3Player::MaoscPlayComplete - Exiting." ); |
|
1028 } |
|
1029 |
|
1030 // --------------------------------------------------------------------------- |
|
1031 // Function: MaoscOpenComplete |
|
1032 // call back implemented for using CMdaAudioOutputStream |
|
1033 // Call as callback from the CMdaAudioOutputStream::Open |
|
1034 // --------------------------------------------------------------------------- |
|
1035 // |
|
1036 void CIRMP3Player::MaoscOpenComplete( TInt aError ) |
|
1037 { |
|
1038 IRLOG_DEBUG( "CIRMP3Player::MaoscOpenComplete" ); |
|
1039 if( aError ) |
|
1040 { |
|
1041 IRLOG_ERROR( "CIRMP3Player::MaoscOpenComplete - error end" ); |
|
1042 IRRDEBUG2("CIRMP3Player::MaoscOpenComplete - EError", KNullDesC); |
|
1043 //open failed |
|
1044 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
|
1045 return; |
|
1046 } |
|
1047 else |
|
1048 { |
|
1049 TInt err( KErrNone ); |
|
1050 |
|
1051 #ifdef __WINS__ |
|
1052 err=0; |
|
1053 #else |
|
1054 //Setting the data type of player as MP3 |
|
1055 TRAP(err, iAudioPlayer->SetDataTypeL(iDataType.FourCC())); //set type the data as MP3 type |
|
1056 |
|
1057 if ( err ) |
|
1058 { |
|
1059 if ( KErrNotSupported == err ) |
|
1060 { |
|
1061 IRRDEBUG2("CIRMP3Player::MaoscOpenComplete - EError1", KNullDesC); |
|
1062 iChannel->SentRequest( EError, KErrNotSupported ); |
|
1063 } |
|
1064 else |
|
1065 { |
|
1066 IRRDEBUG2("CIRMP3Player::MaoscOpenComplete - EError2", KNullDesC); |
|
1067 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
|
1068 } |
|
1069 return; |
|
1070 } |
|
1071 #endif //__WINS__ |
|
1072 |
|
1073 |
|
1074 //during rebuffering current volume is to be taken |
|
1075 if( iNeedReBuffering ) |
|
1076 { |
|
1077 iConfig.iVolume = iChannel->FetchVolume(); |
|
1078 } |
|
1079 |
|
1080 //Computes the current volume and sets the volume |
|
1081 TInt index = iAudioPlayer->MaxVolume()/KNoVolumeLevels; |
|
1082 iConfig.iVolume = iConfig.iVolume * index; |
|
1083 //if the given volume is greater than max volume it made to maximum volume |
|
1084 //this may happen if the first time volume exceeds the limits |
|
1085 if( iConfig.iVolume > iAudioPlayer->MaxVolume() ) |
|
1086 { |
|
1087 iConfig.iVolume = iAudioPlayer->MaxVolume(); |
|
1088 } |
|
1089 //else if the given volume is less than zero it made to zero |
|
1090 //this may happen if the first time volume goes below the limits |
|
1091 if( iConfig.iVolume < KZeroVolume ) |
|
1092 { |
|
1093 iConfig.iVolume = KZeroVolume; |
|
1094 } |
|
1095 |
|
1096 // The actual setting of the volume is delayed to MaoscBufferCopied method. |
|
1097 // This was due to some error in N91 sound subsystem, which caused the |
|
1098 // volume not to adjust in some cases. |
|
1099 iCurrentVolume = 0; |
|
1100 iAudioPlayer->SetVolume( iCurrentVolume ); |
|
1101 |
|
1102 iFirstTime = ETrue; |
|
1103 iNeedReBuffering = ETrue; |
|
1104 |
|
1105 if( !iNewPlayer ) |
|
1106 { |
|
1107 //player is rebuffering or stop and played |
|
1108 TRAP(err,ReCreateBufferL()); |
|
1109 if ( err ) |
|
1110 { |
|
1111 IRRDEBUG2("CIRMP3Player::MaoscOpenComplete - EError3", KNullDesC); |
|
1112 iChannel->SentRequest( EError, KIRCtrlCmdGeneralPlayerError ); |
|
1113 return; |
|
1114 } |
|
1115 |
|
1116 //initiates the refilling of buffers |
|
1117 iTempBufferHolder = iSourceBufferQ.First(); |
|
1118 iTempbuffer = iTempBufferHolder->Des(); |
|
1119 iInputBuffer.Set(iTempbuffer,iPlayBufferSize,iPlayBufferSize); |
|
1120 iChannel->SentRequest( EBufferFillStart, iBufferPercentage ); |
|
1121 //Call FilltheBuffer for first time |
|
1122 iChannel->FilltheBuffer(iInputBuffer); //start fill the data |
|
1123 } |
|
1124 else |
|
1125 { |
|
1126 //First time playing |
|
1127 BufferFilled(); |
|
1128 } |
|
1129 } |
|
1130 IRLOG_DEBUG( "CIRMP3Player::MaoscOpenComplete - Exiting." ); |
|
1131 } |
|
1132 |
|
1133 // --------------------------------------------------------------------------- |
|
1134 // CIRMP3Player::GetMediaClientInstance() |
|
1135 // Returns the Audio Player Instance |
|
1136 // --------------------------------------------------------------------------- |
|
1137 // |
|
1138 CMdaAudioOutputStream* CIRMP3Player::GetAudioPlayer() |
|
1139 { |
|
1140 IRLOG_DEBUG( "CIRMP3Player::GetMediaClientInstance " ); |
|
1141 return iAudioPlayer; |
|
1142 } |
|