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1 /* |
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2 * Copyright (c) 2007,2009 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: Implementation of playback time for rendering state machine |
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15 * |
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16 */ |
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17 |
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18 // INCLUDES |
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19 #include "upnprenderingplaytimecalculator.h" |
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20 |
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21 _LIT( KComponentLogfile, "upnprenderingstatemachine.txt"); |
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22 #include "upnplog.h" |
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23 |
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24 // CONSTANTS |
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25 const TInt KMicrosecondsInMillisecond = 1000; |
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26 const TInt KMillisecondsInSecond = 1000; |
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27 const TInt KDurationErrorMargin = 3000; // 3 seconds |
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28 |
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29 // ======== MEMBER FUNCTIONS ======== |
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30 |
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31 // -------------------------------------------------------------------------- |
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32 // CUpnpRenderingPlaytimeCalculator::CUpnpRenderingPlaytimeCalculator |
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33 // -------------------------------------------------------------------------- |
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34 // |
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35 CUpnpRenderingPlaytimeCalculator::CUpnpRenderingPlaytimeCalculator() |
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36 { |
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37 iPlaying = EFalse; |
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38 iPaused = EFalse; |
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39 iStartMark = 0; |
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40 iStopMark = 0; |
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41 iPauseMark = 0; |
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42 iPauseTime = 0; |
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43 iOffset = 0; |
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44 iDuration = KErrNotFound; |
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45 } |
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46 |
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47 // -------------------------------------------------------------------------- |
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48 // CUpnpRenderingPlaytimeCalculator::Start |
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49 // -------------------------------------------------------------------------- |
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50 // |
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51 void CUpnpRenderingPlaytimeCalculator::Start() |
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52 { |
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53 __LOG("PlaytimeCalculator: Start()" ); |
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54 iStartMark.UniversalTime(); |
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55 iPauseTime = 0; |
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56 iPlaying = ETrue; |
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57 iPaused = EFalse; |
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58 iOffset = 0; |
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59 } |
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60 |
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61 // -------------------------------------------------------------------------- |
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62 // CUpnpRenderingPlaytimeCalculator::Pause |
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63 // -------------------------------------------------------------------------- |
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64 // |
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65 void CUpnpRenderingPlaytimeCalculator::Pause() |
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66 { |
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67 __LOG("PlaytimeCalculator: Pause()" ); |
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68 if( !iPaused ) |
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69 { |
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70 iPauseMark.UniversalTime(); |
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71 iPaused = ETrue; |
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72 } |
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73 } |
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74 |
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75 // -------------------------------------------------------------------------- |
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76 // CUpnpRenderingPlaytimeCalculator::Resume |
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77 // -------------------------------------------------------------------------- |
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78 // |
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79 void CUpnpRenderingPlaytimeCalculator::Resume() |
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80 { |
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81 __LOG("PlaytimeCalculator: Resume()" ); |
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82 TTime resumeMark; |
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83 resumeMark.UniversalTime(); |
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84 iPauseTime += PausetimeAt( resumeMark ); |
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85 iPaused = EFalse; |
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86 } |
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87 |
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88 // -------------------------------------------------------------------------- |
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89 // CUpnpRenderingPlaytimeCalculator::Stop |
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90 // -------------------------------------------------------------------------- |
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91 // |
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92 void CUpnpRenderingPlaytimeCalculator::Stop() |
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93 { |
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94 __LOG("PlaytimeCalculator: Stop()" ); |
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95 iStopMark.UniversalTime(); |
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96 iPlaying = EFalse; |
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97 } |
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98 |
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99 // -------------------------------------------------------------------------- |
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100 // CUpnpRenderingPlaytimeCalculator::SetDuration |
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101 // -------------------------------------------------------------------------- |
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102 // |
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103 void CUpnpRenderingPlaytimeCalculator::SetDuration( TInt aDuration ) |
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104 { |
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105 iDuration = aDuration; |
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106 __LOG1("PlaytimeCalculator:SetDuration iDuration %d", iDuration ); |
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107 } |
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108 |
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109 // -------------------------------------------------------------------------- |
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110 // CUpnpRenderingPlaytimeCalculator::Duration |
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111 // -------------------------------------------------------------------------- |
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112 // |
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113 TInt CUpnpRenderingPlaytimeCalculator::Duration() const |
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114 { |
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115 __LOG1("PlaytimeCalculator: iDuration %d", iDuration ); |
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116 return iDuration; |
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117 } |
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118 |
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119 // -------------------------------------------------------------------------- |
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120 // CUpnpRenderingPlaytimeCalculator::AcknowledgePositionInfo |
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121 // -------------------------------------------------------------------------- |
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122 // |
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123 void CUpnpRenderingPlaytimeCalculator::AcknowledgePositionInfo( |
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124 TInt aDuration, TInt aPosition ) |
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125 { |
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126 __LOG3("PlaytimeCalculator::AcknowledgePositionInfo \ |
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127 aDuration %d aPosition %d, iPlaying %d ", |
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128 aDuration, aPosition, iPlaying ); |
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129 |
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130 // handle DURATION |
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131 if ( aDuration > 0 ) |
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132 { |
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133 if ( iDuration <= 0) |
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134 { |
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135 // we did not know duration before, set it |
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136 iDuration = aDuration; |
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137 } |
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138 else if ( aDuration > iDuration ) |
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139 { |
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140 // renderer thinks track is longer. trust longer value! |
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141 // too long is more safe than too short. |
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142 // TOO LONG -> playlist play may discontinue. (annoying) |
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143 // TOO SHORT -> pressing stop may cause track skip and |
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144 // user can't stop the music (critical) |
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145 iDuration = aDuration; |
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146 } |
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147 } |
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148 // handle POSITION |
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149 if ( iPlaying ) |
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150 { |
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151 // calculate playtime now, compare to given position |
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152 // and manipulate offset accordingly |
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153 iOffset = OffsetFromNow( aPosition ); |
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154 __LOG1("PlaytimeCalculator: New Offset %d", iOffset ); |
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155 } |
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156 else |
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157 { |
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158 // start timer and set position according to ongoing playback |
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159 Start(); |
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160 TTimeIntervalSeconds origPos = aPosition / KMillisecondsInSecond; |
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161 iStartMark -= origPos; |
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162 iOffset = OffsetFromNow( aPosition ); |
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163 } |
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164 |
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165 __LOG2("PlaytimeCalculator::AcknowledgePositionInfo \ |
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166 iDuration %d Current Position %d ", iDuration, Position() ); |
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167 } |
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168 |
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169 // -------------------------------------------------------------------------- |
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170 // CUpnpRenderingPlaytimeCalculator::Position |
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171 // -------------------------------------------------------------------------- |
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172 // |
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173 TInt CUpnpRenderingPlaytimeCalculator::Position() const |
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174 { |
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175 TTime tempTime; |
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176 if ( iPlaying ) |
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177 { |
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178 __LOG("PlaytimeCalculator: Position() - using current time" ); |
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179 // measure time until NOW. |
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180 tempTime.UniversalTime(); |
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181 } |
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182 else |
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183 { |
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184 // measure time until last track STOPPED. |
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185 tempTime = iStopMark; |
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186 } |
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187 return PositionAt( tempTime ); |
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188 } |
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189 |
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190 // -------------------------------------------------------------------------- |
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191 // CUpnpRenderingPlaytimeCalculator::IsTrackComplete |
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192 // -------------------------------------------------------------------------- |
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193 // |
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194 TBool CUpnpRenderingPlaytimeCalculator::IsTrackComplete() const |
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195 { |
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196 TBool isCompleted = ETrue; |
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197 TInt playtime = Position(); |
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198 if ( playtime >= 0 && |
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199 playtime < iDuration - KDurationErrorMargin ) |
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200 { |
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201 // [0 - duration-margin] |
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202 isCompleted= EFalse; |
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203 } |
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204 else if ( playtime >= iDuration - KDurationErrorMargin && |
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205 playtime <= iDuration + KDurationErrorMargin ) |
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206 { |
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207 // [duration-margin - duration+margin] |
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208 isCompleted= ETrue; |
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209 } |
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210 else |
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211 { |
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212 // position either negative or greater than duration ?? |
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213 __LOG2("PlaytimeCalculator: WARNING: playtime=%d duration=%d", |
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214 playtime, |
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215 iDuration ); |
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216 isCompleted= ETrue; |
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217 } |
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218 return isCompleted; |
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219 } |
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220 |
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221 // -------------------------------------------------------------------------- |
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222 // CUpnpRenderingPlaytimeCalculator::IsPlaying |
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223 // -------------------------------------------------------------------------- |
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224 // |
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225 TBool CUpnpRenderingPlaytimeCalculator::IsPlaying() const |
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226 { |
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227 return iPlaying; |
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228 } |
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229 |
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230 // -------------------------------------------------------------------------- |
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231 // CUpnpRenderingPlaytimeCalculator::RestartAt |
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232 // -------------------------------------------------------------------------- |
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233 // |
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234 void CUpnpRenderingPlaytimeCalculator::RestartAt( TInt aNewPosition ) |
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235 { |
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236 __LOG("PlaytimeCalculator: RestartAt()" ); |
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237 Stop(); |
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238 Start(); |
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239 // Consider new position to be equivalent to current position |
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240 TTimeIntervalSeconds newPos = |
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241 aNewPosition / KMillisecondsInSecond; |
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242 iStartMark -= newPos; |
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243 } |
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244 |
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245 // -------------------------------------------------------------------------- |
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246 // CUpnpRenderingPlaytimeCalculator::PositionAt |
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247 // -------------------------------------------------------------------------- |
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248 // |
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249 TInt CUpnpRenderingPlaytimeCalculator::PositionAt( TTime& aMark ) const |
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250 { |
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251 TTimeIntervalMicroSeconds played = |
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252 aMark.MicroSecondsFrom( iStartMark ); |
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253 TInt playtime = ( played.Int64() / KMicrosecondsInMillisecond ); |
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254 __LOG1("PlaytimeCalculator: PositionAt played %d", playtime ); |
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255 |
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256 playtime -= iPauseTime; |
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257 playtime -= PausetimeAt( aMark ); |
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258 playtime += iOffset; |
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259 __LOG3("PlaytimeCalculator: playtime=%d pausetime=%d offset=%d", |
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260 playtime, |
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261 (iPauseTime + PausetimeAt( aMark )), |
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262 iOffset ); |
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263 return playtime; |
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264 } |
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265 |
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266 // -------------------------------------------------------------------------- |
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267 // CUpnpRenderingPlaytimeCalculator::PausetimeAt |
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268 // -------------------------------------------------------------------------- |
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269 // |
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270 TInt CUpnpRenderingPlaytimeCalculator::PausetimeAt( TTime& aMark ) const |
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271 { |
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272 TInt pausetime = 0; |
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273 if ( iPaused ) |
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274 { |
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275 TTimeIntervalMicroSeconds latestPause = |
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276 aMark.MicroSecondsFrom( iPauseMark ); |
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277 pausetime = ( latestPause.Int64() / KMicrosecondsInMillisecond ); |
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278 __LOG1("PlaytimeCalculator: PausetimeAt pause time %d", pausetime ); |
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279 } |
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280 return pausetime; |
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281 } |
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282 |
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283 // -------------------------------------------------------------------------- |
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284 // CUpnpRenderingPlaytimeCalculator::OffsetFromNow |
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285 // -------------------------------------------------------------------------- |
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286 // |
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287 TInt CUpnpRenderingPlaytimeCalculator::OffsetFromNow( TInt aPosition ) const |
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288 { |
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289 TTime timeNow; |
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290 timeNow.UniversalTime(); |
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291 TInt tempPlaytime = PositionAt( timeNow ); |
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292 TInt o = aPosition - tempPlaytime; |
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293 __LOG2("PlaytimeCalculator: renderer position (%d), \ |
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294 tempPlaytime (%d)", aPosition, tempPlaytime ); |
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295 __LOG3("PlaytimeCalculator: old off(%d) current off(%d), \ |
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296 new offset(%d)", iOffset, o, iOffset+o); |
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297 return iOffset+o; |
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298 } |
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299 |
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300 // end of file |