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1 /* |
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2 * Copyright (c) 2002-2006 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 #include <mmf/server/mmfaudioinput.h> |
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22 #include <ecom/implementationproxy.h> |
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23 #include <mmf/server/mmfformat.h> |
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24 #include <mmf/plugin/mmfaudioiointerfaceuids.hrh> |
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25 |
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26 |
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27 |
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28 void InputPanic(TInt aPanicCode) |
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29 { |
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30 _LIT(KMMFAudioInputPanicCategory, "MMFAudioInput"); |
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31 User::Panic(KMMFAudioInputPanicCategory, aPanicCode); |
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32 } |
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33 |
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34 /** |
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35 Static standard SymbianOS 2 phase constuction method. |
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36 |
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37 Constucts this audio device. |
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38 |
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39 @return A pointer to a MDataSource returned on successful construction. |
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40 */ |
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41 MDataSource* CMMFAudioInput::NewSourceL() |
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42 { |
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43 CMMFAudioInput* self = new (ELeave) CMMFAudioInput ; |
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44 CleanupStack::PushL(self); |
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45 self->ConstructL(); |
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46 CleanupStack::Pop(); |
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47 return STATIC_CAST( MDataSource*, self ); |
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48 } |
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49 |
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50 /** |
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51 Standard SymbianOS ConstructL. |
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52 |
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53 Used to initialise member varibles with device specific behaviour. |
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54 */ |
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55 void CMMFAudioInput::ConstructL() |
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56 { |
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57 iDataTypeCode = KMMFFourCCCodePCM16; |
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58 } |
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59 |
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60 /** |
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61 Standard SymbianOS destructor. |
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62 */ |
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63 CMMFAudioInput::~CMMFAudioInput() |
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64 { |
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65 if (iMMFDevSound) |
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66 { |
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67 iMMFDevSound->Stop(); |
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68 delete iMMFDevSound; |
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69 } |
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70 } |
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71 |
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72 |
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73 /** |
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74 Overridable constuctor specific to this datasource. |
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75 |
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76 @param aInitData |
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77 The initialisation data. |
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78 */ |
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79 void CMMFAudioInput::ConstructSourceL( const TDesC8& /*aInitData*/ ) |
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80 { |
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81 } |
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82 |
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83 /** |
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84 @deprecated |
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85 |
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86 Gets audio from hardware device abstracted MMFDevsound (not used). |
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87 |
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88 @param aBuffer |
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89 The data to read in from a Hardware Device |
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90 @param aConsumer |
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91 The MDataSink consuming the data contained in aBuffer. |
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92 */ |
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93 void CMMFAudioInput::HWFillBufferL(CMMFBuffer* /*aBuffer*/, MDataSink* /*aConsumer*/) |
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94 { |
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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 Gets audio from MMFDevsound. |
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100 |
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101 @pre |
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102 iMMFDevSound must be loaded. |
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103 |
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104 @param aBuffer |
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105 The data to read in from a Devsound device. |
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106 @param aConsumer |
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107 The MDataSink consuming the data contained in aBuffer. |
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108 @param aMediaId |
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109 Type of data supplied - currently ignored. |
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110 */ |
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111 void CMMFAudioInput::FillBufferL(CMMFBuffer* aBuffer, MDataSink* aConsumer, TMediaId /* aMediaId */) |
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112 { |
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113 iConsumer = aConsumer; |
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114 |
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115 if (!iMMFDevSound) |
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116 InputPanic(EMMFAudioInputDevSoundNotLoaded); |
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117 |
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118 if ((iState == EPaused) && (iPausePending != EFalse) && (iFirstBufferRequested) ) |
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119 { |
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120 User::Leave(KErrNotReady); |
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121 } |
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122 |
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123 if ((aBuffer != NULL) && (!CMMFBuffer::IsSupportedDataBuffer(aBuffer->Type()))) |
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124 User::Leave(KErrNotSupported); |
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125 |
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126 if (aConsumer == NULL) |
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127 User::Leave(KErrArgument); |
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128 |
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129 //this is a one-shot "prime" funtion for MMFDevSound as first buffer is uninitialised |
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130 if (!iFirstBufferRequested) |
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131 { |
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132 iMMFDevSound->RecordInitL(); |
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133 iFirstBufferRequested = ETrue; |
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134 return; |
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135 } |
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136 |
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137 if (iState != EDevSoundReady && iState != EPaused) |
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138 { |
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139 User::Leave(KErrNotReady); |
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140 } |
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141 |
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142 iMMFDevSound->RecordData(); |
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143 } |
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144 |
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145 /** |
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146 Indicates the data sink has emptied the buffer. |
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147 |
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148 Called by the data path's MDataSink when it has emptied the buffer. |
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149 |
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150 The default implementation is empty. |
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151 |
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152 @param aBuffer |
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153 The data buffer that has been emptied (not used). |
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154 */ |
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155 void CMMFAudioInput::BufferEmptiedL(CMMFBuffer* /*aBuffer*/) |
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156 { |
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157 } |
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158 |
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159 |
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160 /** |
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161 Tests whether a source buffer can be created. |
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162 |
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163 The default imlpementation returns true. |
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164 |
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165 @return A boolean indicating if the buffer can be made. ETrue if the buffer can be created, false |
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166 otherwise. |
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167 */ |
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168 TBool CMMFAudioInput::CanCreateSourceBuffer() |
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169 { |
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170 return ETrue; |
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171 } |
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172 |
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173 /** |
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174 Creates a source buffer. |
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175 |
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176 Intended for asynchronous usage (buffers supplied by Devsound device) |
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177 |
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178 @param aMediaId |
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179 The Media ID. Not used in the default implementation. |
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180 @param aReference |
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181 A boolean indicating if MDataSource owns the buffer. ETrue if it does, EFalse if it does |
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182 not. |
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183 |
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184 @return The buffer created (this will always be NULL when asychronous). |
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185 */ |
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186 CMMFBuffer* CMMFAudioInput::CreateSourceBufferL(TMediaId /*aMediaId*/, TBool &aReference) |
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187 { |
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188 CMMFDataBuffer* buf = NULL; |
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189 |
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190 aReference = ETrue; // This is a reference from DevSound |
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191 return buf; |
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192 } |
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193 |
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194 /** |
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195 Creates a source buffer. |
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196 |
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197 Intended for synchronous usage. |
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198 |
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199 @param aMediaId |
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200 The Media ID. Not used in the default implementation. |
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201 |
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202 @return The buffer created |
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203 */ |
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204 CMMFBuffer* CMMFAudioInput::CreateSourceBufferL(TMediaId /*aMediaId*/) |
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205 { |
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206 CMMFDataBuffer* buf = CMMFDataBuffer::NewL(KAudioInputDefaultFrameSize); |
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207 return buf; |
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208 } |
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209 |
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210 |
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211 /** |
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212 Primes the source. |
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213 |
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214 This is a virtual function that each derived class must implement, but may be left blank for |
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215 default behaviour. |
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216 |
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217 Overridable PrimeL method. Additional Prime method specific to this DataSource. |
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218 */ |
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219 void CMMFAudioInput::SourcePrimeL() |
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220 { |
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221 iState = EDevSoundReady; |
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222 } |
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223 |
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224 /** |
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225 Pauses the source. |
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226 |
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227 This is a virtual function that each derived class must implement, but may be left blank for default |
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228 behaviour. |
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229 |
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230 Overridable PauseL method. Additional Pause method specific to this DataSource. |
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231 */ |
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232 void CMMFAudioInput::SourcePauseL() |
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233 { |
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234 if (iState == EDevSoundReady) |
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235 {//not waiting on a buffer being played so stop devsound now |
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236 iState = EPaused; |
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237 if (iFirstBufferRead) |
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238 { |
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239 if (!iMMFDevSound) |
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240 InputPanic(EMMFAudioInputDevSoundNotLoaded); |
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241 else |
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242 iMMFDevSound->Pause(); |
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243 } |
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244 else |
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245 iPausePending = ETrue; // Wait for recording to get started. |
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246 } |
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247 //else if Devsound isn't ready then no point in stopping it |
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248 } |
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249 |
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250 |
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251 /** |
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252 Stops the source. |
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253 |
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254 This is a virtual function that each derived class must implement, but may be left blank for default |
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255 behaviour. |
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256 |
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257 Overridable StopL method. Additional Stop method specific to this DataSource. |
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258 */ |
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259 void CMMFAudioInput::SourceStopL() |
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260 { |
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261 iStopped = ETrue; |
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262 // This is done in Audio Output as well, not sure whether its needed here or not. |
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263 // Pause will be called before SourceStopL() and pause will take care of closing |
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264 // DevSound |
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265 if (iState == EDevSoundReady || iState == EPaused) |
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266 {//not waiting on a buffer being played so stop devsound now |
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267 iState = EIdle; |
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268 if (iFirstBufferRequested) |
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269 { |
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270 if (!iMMFDevSound) |
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271 InputPanic(EMMFAudioInputDevSoundNotLoaded); |
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272 else |
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273 { |
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274 iMMFDevSound->Stop(); |
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275 } |
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276 |
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277 iFirstBufferRequested = EFalse; |
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278 iFirstBufferRead = EFalse; |
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279 } |
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280 } |
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281 //else if Devsound isn't ready then no point in stopping it |
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282 } |
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283 |
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284 /** |
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285 Plays the source. |
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286 |
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287 This is a virtual function that each derived class must implement, but may be left blank for default |
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288 behaviour. |
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289 |
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290 Overridable PlayL method. Additional Play method specific to this DataSource. |
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291 */ |
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292 void CMMFAudioInput::SourcePlayL() |
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293 { |
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294 } |
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295 |
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296 /** |
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297 Logs on the source thread. |
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298 |
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299 Thread specific initialization procedure for this device. Runs automatically on thread construction. |
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300 |
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301 @param aEventHandler |
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302 The event handler. |
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303 |
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304 @return An error code indicating if the function call was successful. KErrNone on success, otherwise |
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305 another of the system-wide error codes. |
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306 */ |
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307 TInt CMMFAudioInput::SourceThreadLogon(MAsyncEventHandler& aEventHandler) |
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308 { |
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309 iEventHandler = &aEventHandler; |
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310 TInt err = KErrNone; |
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311 if (!iDevSoundLoaded) |
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312 TRAP(err, LoadL()); |
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313 return err; |
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314 } |
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315 |
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316 /** |
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317 Logs off the source thread. |
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318 |
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319 Thread specific destruction procedure for this device. Runs automatically on thread destruction. |
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320 */ |
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321 void CMMFAudioInput::SourceThreadLogoff() |
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322 { |
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323 if(iMMFDevSound) |
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324 { |
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325 iMMFDevSound->Stop(); |
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326 delete iMMFDevSound; |
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327 iMMFDevSound = NULL; |
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328 } |
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329 iDevSoundLoaded = EFalse; |
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330 iState = EIdle; |
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331 } |
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332 |
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333 /* |
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334 @internaTechnology |
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335 |
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336 @pre |
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337 dev sound should be created and loaded. |
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338 */ |
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339 void CMMFAudioInput::ConfigDevSoundL() |
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340 { |
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341 //[precondition dev sound created ] |
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342 ASSERT( iMMFDevSound ); |
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343 |
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344 // Query DevSound capabilities and Try to use DevSound sample rate and |
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345 // mono/stereo capability |
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346 TMMFCapabilities devSoundCaps = iMMFDevSound->Capabilities(); |
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347 // get current config |
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348 TMMFCapabilities devSoundConfig = iMMFDevSound->Config(); |
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349 |
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350 // Default PCM16 |
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351 devSoundConfig.iEncoding = EMMFSoundEncoding16BitPCM; |
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352 |
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353 // 1 = Monophonic and 2 == Stereo |
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354 if (((iSinkChannels == 1) && (devSoundCaps.iChannels & EMMFMono)) || |
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355 ((iSinkChannels == 2) && (devSoundCaps.iChannels & EMMFStereo))) |
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356 devSoundConfig.iChannels = iSinkChannels; |
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357 |
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358 devSoundConfig.iRate = EMMFSampleRate96000Hz; |
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359 |
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360 iMMFDevSound->SetConfigL(devSoundConfig); |
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361 } |
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362 |
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363 /** |
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364 Negotiates with the sink. |
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365 |
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366 Called if the source's setup depends on sink. |
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367 |
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368 @param aSink |
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369 The Data sink. Takes an MDataSink reference so a DataSource can negotiate with this |
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370 MDataSource. |
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371 */ |
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372 void CMMFAudioInput::NegotiateSourceL(MDataSink& aSink) |
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373 { |
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374 if (aSink.DataSinkType() == KUidMmfFormatEncode) |
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375 {//sink is a clip so for now set sink settings to match sink |
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376 iSinkSampleRate = ((CMMFFormatEncode&)aSink).SampleRate(); |
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377 iSinkChannels = ((CMMFFormatEncode&)aSink).NumChannels(); |
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378 iSinkFourCC.Set(aSink.SinkDataTypeCode(TMediaId(KUidMediaTypeAudio))); |
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379 |
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380 // if the sink's sample rate is undefined, try to obtain and use a |
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381 // default sample rate from the sink. If this is zero, use 8K |
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382 if (iSinkSampleRate == 0) |
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383 { |
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384 iSinkSampleRate = ((CMMFFormatEncode&)aSink).GetDefaultSampleRate(); |
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385 if (iSinkSampleRate == 0) |
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386 iSinkSampleRate = 8000; |
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387 } |
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388 |
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389 } |
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390 |
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391 if (iMMFDevSound == NULL) |
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392 User::Leave(KErrNotReady); |
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393 |
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394 TMMFState prioritySettingsState = iPrioritySettings.iState; //should be EMMFStateRecording |
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395 //to use the GetSupportedOutputDatatypes but we'll save it just in case it's not |
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396 iPrioritySettings.iState = EMMFStateRecording; //if playing does not support any output data types |
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397 iDataTypeCode = KMMFFourCCCodePCM16; |
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398 |
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399 |
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400 // moved from LoadL - fix for DEF037168 - AD |
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401 iMMFDevSound->InitializeL(*this, iDataTypeCode, EMMFStateRecording); |
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402 iMMFDevSound->SetPrioritySettings(iPrioritySettings); |
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403 |
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404 // Attempt to configure DevSound to the same settings as the sink. |
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405 // Need to do this after calling CMMFDevSound::InitializeL() as |
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406 // this sets up the device capabilities |
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407 // (returned by iMMFDevSound->Capabilities()). |
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408 ConfigDevSoundL(); |
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409 } |
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410 |
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411 /** |
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412 Sets the source's priority settings. |
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413 |
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414 @param aPrioritySettings |
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415 The source priority settings. Takes enumerations to determine audio record priority. Higher |
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416 numbers mean high priority (can interrupt lower priorities). |
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417 */ |
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418 void CMMFAudioInput::SetSourcePrioritySettings(const TMMFPrioritySettings& aPrioritySettings) |
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419 { |
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420 iPrioritySettings = aPrioritySettings; |
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421 if (!iMMFDevSound) |
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422 InputPanic(EMMFAudioInputDevSoundNotLoaded); |
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423 else |
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424 iMMFDevSound->SetPrioritySettings(iPrioritySettings); |
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425 } |
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426 |
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427 |
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428 /** |
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429 Gets the data type code for the source specified by the media ID. |
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430 |
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431 @param aMediaId |
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432 An optional parameter to specifiy a specific stream when the datasource contains more than |
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433 one stream of data. |
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434 |
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435 @return The 4CC of the data supplied by this source. |
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436 */ |
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437 TFourCC CMMFAudioInput::SourceDataTypeCode(TMediaId /*aMediaId*/) |
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438 { |
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439 return iDataTypeCode; |
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440 } |
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441 |
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442 /** |
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443 Sets the data type code for the source. |
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444 |
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445 @param aSourceFourCC |
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446 The 4CC of the data supplied by this source. |
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447 @param aMediaId |
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448 The Media ID. An optional parameter to specifiy specific stream when datasource contains |
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449 more than one stream of data. |
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450 |
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451 @return An error code indicating if the function call was successful. KErrNone on success, otherwise |
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452 another of the system-wide error codes. |
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453 */ |
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454 TInt CMMFAudioInput::SetSourceDataTypeCode(TFourCC aSourceFourCC, TMediaId /*aMediaId*/) |
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455 { |
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456 iDataTypeCode = aSourceFourCC; |
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457 return KErrNone; |
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458 } |
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459 |
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460 /** |
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461 Gets the number of bytes played. |
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462 |
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463 @return The number of bytes played. If 16-bit divide this number returned by 2 to get word length. |
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464 */ |
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465 TInt CMMFAudioInput::BytesPlayed() |
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466 { |
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467 if (!iMMFDevSound) |
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468 InputPanic(EMMFAudioInputDevSoundNotLoaded); |
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469 return iMMFDevSound->SamplesPlayed(); |
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470 } |
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471 |
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472 /** |
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473 Returns the sound device. |
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474 |
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475 @pre |
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476 Dev Sound should be loaded. |
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477 |
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478 Accessor function exposing public CMMFDevsound methods. |
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479 |
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480 @return A reference to a CMMFDevSound objector. |
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481 */ |
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482 CMMFDevSound& CMMFAudioInput::SoundDevice() |
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483 { |
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484 if (!iMMFDevSound) |
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485 { |
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486 InputPanic(EMMFAudioInputDevSoundNotLoaded); |
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487 } |
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488 return *iMMFDevSound; |
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489 } |
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490 |
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491 |
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492 /** |
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493 @deprecated |
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494 |
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495 This method should not be used - it is provided to maintain SC with v7.0s. |
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496 |
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497 @param aAudioType |
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498 The 4CC of the data supplied by this source. |
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499 */ |
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500 void CMMFAudioInput::SetDataTypeL(TFourCC aAudioType) |
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501 { |
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502 if (aAudioType != KMMFFourCCCodePCM16) |
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503 { |
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504 User::Leave(KErrNotSupported); |
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505 } |
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506 } |
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507 |
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508 |
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509 /** |
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510 @deprecated |
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511 |
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512 This method should not be used - it is provided to maintain SC with v7.0s. |
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513 |
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514 @return The 4CC of the data supplied by this source. |
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515 */ |
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516 TFourCC CMMFAudioInput::DataType() const |
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517 { |
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518 return KMMFFourCCCodePCM16; |
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519 } |
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520 |
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521 |
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522 /** |
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523 Loads audio device drivers and initialise this device. |
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524 */ |
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525 void CMMFAudioInput::LoadL() |
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526 { |
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527 //[ do all the work that can fail first |
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528 // before we modify the internal state ] |
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529 |
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530 iMMFDevSound = CMMFDevSound::NewL(); |
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531 iFirstBufferRequested = EFalse; |
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532 iFirstBufferRead = EFalse; |
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533 if (iState != EDevSoundReady) |
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534 { |
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535 iState = EIdle; |
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536 } |
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537 |
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538 iDevSoundLoaded = ETrue; |
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539 |
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540 //[ assert dev sound has been constructed] |
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541 ASSERT( iMMFDevSound ); |
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542 ASSERT( iDevSoundLoaded ); |
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543 ASSERT( !iFirstBufferRead ); |
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544 } |
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545 |
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546 void CMMFAudioInput::DeviceMessage(TUid /*aMessageType*/, const TDesC8& /* aMsg */) |
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547 { |
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548 } |
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549 |
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550 void CMMFAudioInput::InitializeComplete(TInt aError) |
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551 { |
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552 if (aError == KErrNone) |
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553 iState = EDevSoundReady; |
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554 } |
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555 |
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556 |
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557 /** |
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558 ToneFinished MMFDevSoundObserver - should never get called. |
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559 */ |
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560 void CMMFAudioInput::ToneFinished(TInt /*aError*/) |
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561 { |
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562 //we should never get here during a record session! |
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563 __ASSERT_DEBUG(EFalse,InputPanic(EMMFAudioInputPanicToneFinishedNotSupported)); |
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564 } |
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565 |
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566 |
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567 /** |
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568 BuffferToBeEmptied MMFDevSoundObserver |
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569 Called when stopped due to error. |
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570 */ |
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571 void CMMFAudioInput::BufferToBeEmptied(CMMFBuffer* aBuffer) |
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572 { |
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573 iDevSoundBuf = aBuffer; |
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574 |
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575 if (iFirstBufferRequested) |
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576 { |
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577 if (iPausePending) |
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578 { |
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579 aBuffer->SetLastBuffer(ETrue); |
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580 iPausePending = EFalse; |
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581 } |
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582 |
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583 #ifdef _DEBUG |
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584 TRAPD(err, iConsumer->BufferFilledL(aBuffer)); |
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585 __ASSERT_DEBUG(!err, InputPanic(err)); |
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586 #else |
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587 TRAP_IGNORE(iConsumer->BufferFilledL(aBuffer)); |
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588 #endif |
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589 |
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590 iFirstBufferRead = ETrue; |
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591 } |
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592 } |
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593 |
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594 |
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595 /** |
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596 RecordError MMFDevSoundObserver |
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597 Called when stopped due to error. |
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598 */ |
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599 void CMMFAudioInput::RecordError(TInt aError) |
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600 { |
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601 //[ two event categories will be used |
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602 // which mirrors the datapath response ] |
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603 |
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604 //[ record the error ] |
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605 iMMFDevsoundError = aError; |
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606 TMMFEvent event( KMMFEventCategoryPlaybackComplete, aError); |
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607 |
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608 //[ send the event to the client. |
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609 SendEventToClient(event); |
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610 |
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611 // clear flags if there is an error. |
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612 iPausePending = EFalse; |
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613 |
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614 //[ we are not going to stop devsound ] |
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615 } |
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616 |
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617 |
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618 /** |
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619 BufferToBeFilled MMFDevSoundObserver - should never get called. |
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620 */ |
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621 void CMMFAudioInput::BufferToBeFilled(CMMFBuffer* /*aBuffer*/) |
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622 { |
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623 //we should never get here during a play session! |
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624 __ASSERT_DEBUG(EFalse, InputPanic(EMMFAudioInputPanicPlayerDataUsedNotSupported)); |
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625 } |
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626 |
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627 |
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628 /** |
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629 PlayError MMFDevSoundObserver - should never get called. |
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630 */ |
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631 void CMMFAudioInput::PlayError(TInt /*aError*/) |
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632 { |
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633 //we should never get here during a record session! |
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634 __ASSERT_DEBUG(EFalse, InputPanic(EMMFAudioInputPanicPlayErrorNotSupported)); |
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635 } |
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636 |
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637 |
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638 /** |
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639 ConvertError MMFDevSoundObserver - should never get called. |
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640 */ |
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641 void CMMFAudioInput::ConvertError(TInt /*aError*/) |
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642 { |
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643 } |
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644 |
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645 |
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646 void CMMFAudioInput::SendEventToClient(const TMMFEvent& aEvent) |
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647 { |
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648 iEventHandler->SendEventToClient(aEvent); |
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649 } |
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650 |
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651 // _________________________________________________________________________ |
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652 // Exported proxy for instantiation method resolution |
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653 // Define the interface UIDs |
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654 |
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655 const TImplementationProxy ImplementationTable[] = |
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656 { |
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657 IMPLEMENTATION_PROXY_ENTRY(KMmfUidAudioInputInterface, CMMFAudioInput::NewSourceL) |
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658 }; |
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659 |