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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "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 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * Implementation of audio processor class. |
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17 * |
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18 */ |
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19 |
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20 |
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21 // Include Files |
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22 #include "movieprocessorimpl.h" |
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23 #include "AudSong.h" |
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24 #include "audioprocessor.h" |
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25 |
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26 #ifdef _DEBUG |
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27 #include <e32svr.h> |
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28 #define PRINT(x) RDebug::Print x; |
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29 #else |
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30 #define PRINT(x) |
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31 #endif |
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32 |
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33 // Macros |
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34 #define APASSERT(x) __ASSERT_DEBUG(x, User::Panic(_L("CAudioProcessor"), -30000)) |
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35 |
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36 const TUint KNumFramesInOneRun = 20; |
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37 |
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38 |
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39 // ================= MEMBER FUNCTIONS ======================= |
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40 |
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41 |
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42 // --------------------------------------------------------- |
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43 // CAudioProcessor::NewL |
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44 // Two-phased constructor. |
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45 // --------------------------------------------------------- |
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46 // |
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47 CAudioProcessor* CAudioProcessor::NewL(CMovieProcessorImpl *aMovieProcessor, CAudSong* aSong) |
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48 { |
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49 CAudioProcessor* self = NewLC(aMovieProcessor, aSong); |
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50 CleanupStack::Pop(self); |
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51 return self; |
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52 } |
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53 |
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54 CAudioProcessor* CAudioProcessor::NewLC(CMovieProcessorImpl *aMovieProcessor, CAudSong* aSong) |
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55 { |
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56 CAudioProcessor* self = new (ELeave) CAudioProcessor(aMovieProcessor, aSong); |
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57 CleanupStack::PushL(self); |
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58 self->ConstructL(); |
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59 return self; |
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60 } |
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61 |
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62 |
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63 // --------------------------------------------------------- |
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64 // CAudioProcessor::NewL |
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65 // C++ default constructor |
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66 // --------------------------------------------------------- |
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67 // |
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68 CAudioProcessor::CAudioProcessor(CMovieProcessorImpl *aMovieProcessor, CAudSong* aSong) : CActive(EPriorityNormal) |
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69 { |
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70 iMovieProcessor = aMovieProcessor; |
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71 iSong = aSong; |
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72 iProcessing = EFalse; |
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73 } |
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74 |
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75 // ----------------------------------------------------------------------------- |
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76 // CAudioProcessor::ConstructL |
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77 // Symbian 2nd phase constructor |
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78 // ----------------------------------------------------------------------------- |
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79 // |
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80 void CAudioProcessor::ConstructL() |
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81 { |
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82 |
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83 if(!iSong) |
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84 { |
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85 User::Leave(KErrArgument); |
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86 } |
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87 |
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88 SetPriority( EPriorityNormal ); |
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89 // Add to active scheduler |
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90 CActiveScheduler::Add(this); |
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91 |
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92 // Make us active |
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93 SetActive(); |
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94 iStatus = KRequestPending; |
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95 |
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96 } |
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97 |
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98 // ----------------------------------------------------------------------------- |
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99 // CAudioProcessor::~CAudioProcessor |
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100 // Destructor |
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101 // ----------------------------------------------------------------------------- |
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102 // |
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103 CAudioProcessor::~CAudioProcessor() |
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104 { |
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105 PRINT((_L("CAudioProcessor::~CAudioProcessor() begin"))); |
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106 |
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107 Cancel(); |
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108 |
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109 PRINT((_L("CAudioProcessor::~CAudioProcessor() end"))); |
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110 } |
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111 |
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112 |
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113 // ----------------------------------------------------------------------------- |
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114 // CAudioProcessor::DoCancel() |
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115 // DoCancel for AO framework |
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116 // (other items were commented in a header). |
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117 // ----------------------------------------------------------------------------- |
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118 // |
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119 void CAudioProcessor::DoCancel() |
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120 { |
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121 // Cancel our internal request |
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122 if ( iStatus == KRequestPending ) |
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123 { |
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124 PRINT((_L("CAudioProcessor::DoCancel() cancel request"))) |
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125 TRequestStatus *status = &iStatus; |
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126 User::RequestComplete(status, KErrCancel); |
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127 } |
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128 } |
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129 |
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130 // ----------------------------------------------------------------------------- |
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131 // CAudioProcessor::RunL() |
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132 // Running method of AO framework |
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133 // (other items were commented in a header). |
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134 // ----------------------------------------------------------------------------- |
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135 // |
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136 void CAudioProcessor::RunL() |
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137 { |
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138 |
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139 if (!iProcessing) |
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140 return; |
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141 |
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142 ProcessFramesL(); |
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143 |
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144 } |
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145 |
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146 |
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147 // ----------------------------------------------------------------------------- |
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148 // CAudioProcessor::ProcessFramesL() |
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149 // Process audio frames |
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150 // (other items were commented in a header). |
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151 // ----------------------------------------------------------------------------- |
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152 // |
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153 void CAudioProcessor::ProcessFramesL() |
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154 { |
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155 |
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156 TInt progress = 0; |
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157 HBufC8* frame = 0; |
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158 TPtr8 ptr(0,0); |
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159 TTimeIntervalMicroSeconds time(0); |
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160 |
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161 TBool gotFrame = ETrue; // true indicates end of sequence |
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162 |
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163 TInt framesProcessed = 0; |
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164 |
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165 do |
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166 { |
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167 gotFrame = iSong->SyncProcessFrameL(frame,progress,time); |
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168 |
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169 if(gotFrame) |
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170 { |
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171 break; |
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172 } |
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173 |
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174 if (frame == NULL || frame->Size() == 0) |
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175 { |
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176 continue; |
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177 } |
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178 |
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179 CleanupStack::PushL(frame); |
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180 |
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181 TInt duration = I64INT(time.Int64()); |
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182 |
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183 ptr.Set((TUint8*)frame->Ptr(),frame->Length(),frame->Length()); |
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184 |
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185 User::LeaveIfError(iMovieProcessor->WriteAllAudioFrames((TDesC8&)ptr,duration)); |
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186 |
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187 CleanupStack::Pop(); |
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188 |
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189 if(frame != 0) |
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190 { |
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191 delete frame; |
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192 frame = 0; |
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193 } |
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194 |
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195 // Increment the frame number |
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196 framesProcessed++; |
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197 |
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198 if (framesProcessed >= KNumFramesInOneRun) |
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199 { |
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200 iStatus = KRequestPending; |
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201 SetActive(); |
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202 TRequestStatus *tmp = &iStatus; |
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203 User::RequestComplete( tmp, KErrNone ); |
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204 return; |
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205 } |
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206 |
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207 } while(!gotFrame); |
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208 |
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209 if(frame!=0) |
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210 { |
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211 delete frame; |
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212 frame = 0; |
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213 } |
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214 |
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215 // finished |
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216 iProcessing = EFalse; |
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217 |
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218 iMovieProcessor->AudioProcessingComplete(KErrNone); |
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219 |
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220 } |
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221 |
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222 // ----------------------------------------------------------------------------- |
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223 // CAudioProcessor::RunError() |
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224 // RunError method of AO framework |
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225 // (other items were commented in a header). |
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226 // ----------------------------------------------------------------------------- |
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227 // |
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228 TInt CAudioProcessor::RunError(TInt aError) |
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229 { |
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230 iProcessing = EFalse; |
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231 |
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232 iMovieProcessor->AudioProcessingComplete(aError); |
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233 |
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234 return KErrNone; |
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235 } |
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236 |
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237 // ----------------------------------------------------------------------------- |
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238 // CAudioProcessor::StartL() |
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239 // Stops audio processing |
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240 // (other items were commented in a header). |
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241 // ----------------------------------------------------------------------------- |
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242 // |
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243 void CAudioProcessor::StartL() |
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244 { |
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245 PRINT((_L("CAudioProcessor::StartL() begin"))); |
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246 |
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247 if ( iProcessing ) |
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248 return; |
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249 |
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250 if (iSong->ClipCount(KAllTrackIndices) == 0) |
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251 { |
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252 iMovieProcessor->AudioProcessingComplete(KErrNone); |
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253 return; |
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254 } |
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255 |
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256 iSong->SyncStartProcessingL(); |
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257 |
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258 TRequestStatus *status = &iStatus; |
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259 User::RequestComplete(status, KErrNone); |
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260 |
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261 iProcessing = ETrue; |
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262 |
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263 PRINT((_L("CAudioProcessor::StartL() end"))); |
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264 } |
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265 |
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266 // ----------------------------------------------------------------------------- |
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267 // CAudioProcessor::StopL() |
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268 // Stops audio processing |
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269 // (other items were commented in a header). |
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270 // ----------------------------------------------------------------------------- |
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271 // |
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272 void CAudioProcessor::StopL() |
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273 { |
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274 PRINT((_L("CAudioProcessor::StopL() begin"))); |
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275 |
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276 if ( !iProcessing ) |
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277 return; |
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278 |
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279 Cancel(); |
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280 |
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281 iSong->SyncCancelProcess(); |
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282 |
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283 iMovieProcessor->AudioProcessingComplete(KErrNone); |
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284 |
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285 iProcessing = EFalse; |
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286 |
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287 PRINT((_L("CAudioProcessor::StopL() end"))); |
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288 } |
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289 |
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290 // End of file |
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291 |