1 /* |
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2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Audio thumbnail provider plugin |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <ecom/ecom.h> |
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20 #include <implementationproxy.h> |
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21 |
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22 #include "thumbnailaudioprovider.h" |
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23 #include "thumbnailimagedecoderv3.h" |
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24 #include "thumbnailmanageruids.hrh" |
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25 #include "thumbnaillog.h" |
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26 #include <MetaDataUtility.h> |
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27 #include <MetaDataFieldContainer.h> |
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28 #include "thumbnailmanagerconstants.h" |
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29 #include "OstTraceDefinitions.h" |
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30 #ifdef OST_TRACE_COMPILER_IN_USE |
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31 #include "thumbnailaudioproviderTraces.h" |
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32 #endif |
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33 |
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34 |
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35 |
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36 #ifndef IMPLEMENTATION_PROXY_ENTRY |
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37 typedef TAny* TProxyNewLPtr; |
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38 #define IMPLEMENTATION_PROXY_ENTRY(aUid, aFuncPtr) \ |
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39 { {aUid}, static_cast<TProxyNewLPtr>(aFuncPtr) } |
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40 #endif |
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41 |
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42 |
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43 // ======== MEMBER FUNCTIONS ======== |
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44 |
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45 // --------------------------------------------------------------------------- |
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46 // CThumbnailImageProvider::NewL() |
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47 // Two-phased constructor. |
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48 // --------------------------------------------------------------------------- |
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49 // |
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50 CThumbnailAudioProvider* CThumbnailAudioProvider::NewL() |
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51 { |
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52 CThumbnailAudioProvider* self = new( ELeave )CThumbnailAudioProvider(); |
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53 return self; |
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54 } |
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55 |
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56 |
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57 // --------------------------------------------------------------------------- |
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58 // CThumbnailAudioProvider::CThumbnailAudioProvider() |
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59 // C++ default constructor can NOT contain any code, that might leave. |
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60 // --------------------------------------------------------------------------- |
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61 // |
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62 CThumbnailAudioProvider::CThumbnailAudioProvider() |
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63 { |
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64 TN_DEBUG1( "CThumbnailAudioProvider::CThumbnailAudioProvider()" ); |
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65 OstTrace0( TRACE_NORMAL, CTHUMBNAILAUDIOPROVIDER_CTHUMBNAILAUDIOPROVIDER, "CThumbnailAudioProvider::CThumbnailAudioProvider" ); |
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66 } |
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67 |
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68 |
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69 // --------------------------------------------------------------------------- |
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70 // CThumbnailAudioProvider::~CThumbnailAudioProvider() |
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71 // Destructor. |
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72 // --------------------------------------------------------------------------- |
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73 // |
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74 CThumbnailAudioProvider::~CThumbnailAudioProvider() |
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75 { |
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76 TN_DEBUG1( "CThumbnailAudioProvider::~CThumbnailAudioProvider()" ); |
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77 OstTrace0( TRACE_NORMAL, DUP1_CTHUMBNAILAUDIOPROVIDER_CTHUMBNAILAUDIOPROVIDER, "CThumbnailAudioProvider::~CThumbnailAudioProvider" ); |
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78 |
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79 delete iImageDecoderv3; |
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80 iImageDecoderv3 = NULL; |
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81 REComSession::DestroyedImplementation( iDtor_ID_Key ); |
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82 } |
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83 |
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84 |
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85 // --------------------------------------------------------------------------- |
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86 // CThumbnailAudioProvider::GetThumbnailL() |
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87 // Provides the thumbnail image |
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88 // --------------------------------------------------------------------------- |
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89 // |
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90 void CThumbnailAudioProvider::GetThumbnailL( RFs& aFs, RFile64& aFile, const |
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91 TDataType& aMimeType , const CThumbnailManager::TThumbnailFlags aFlags, |
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92 const TDisplayMode /*aDisplayMode*/, const CThumbnailManager::TThumbnailQualityPreference /*aQualityPreference*/ ) |
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93 { |
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94 TN_DEBUG1( "CThumbnailAudioProvider::GetThumbnailL() - rfile " ); |
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95 OstTrace0( TRACE_NORMAL, CTHUMBNAILAUDIOPROVIDER_GETTHUMBNAILL, "CThumbnailAudioProvider::GetThumbnailL - rfile" ); |
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96 CMetaDataUtility* metaDataUtil = CMetaDataUtility::NewL(); |
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97 CleanupStack::PushL( metaDataUtil ); |
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98 |
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99 RArray<TMetaDataFieldId> wantedFields; |
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100 CleanupClosePushL(wantedFields); |
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101 wantedFields.AppendL(EMetaDataJpeg); |
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102 |
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103 metaDataUtil->OpenFileL(aFile, wantedFields, aMimeType.Des8()); |
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104 const CMetaDataFieldContainer& metaCont = metaDataUtil->MetaDataFieldsL(); |
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105 TPtrC8 ptr = metaCont.Field8( EMetaDataJpeg ); |
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106 HBufC8* data = ptr.AllocL(); |
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107 |
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108 CleanupStack::PopAndDestroy(&wantedFields); |
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109 CleanupStack::PopAndDestroy(metaDataUtil); |
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110 CleanupStack::PushL( data ); |
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111 |
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112 if(data->Length() == 0) |
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113 { |
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114 User::Leave( KErrNotFound ); |
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115 } |
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116 |
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117 if ( !iImageDecoderv3 ) |
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118 { |
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119 iImageDecoderv3 = new( ELeave )CThumbnailImageDecoderv3( aFs ); |
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120 } |
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121 |
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122 iMimeType = TDataType(KJpegMime); |
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123 iFlags = aFlags; |
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124 //set default mode displaymode from global constants |
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125 iDisplayMode = KStoreDisplayMode; |
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126 TRAPD( err, iImageDecoderv3->CreateL( data, *iObserver, iFlags, iMimeType, iTargetSize ) ); |
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127 if (err == KErrNone) |
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128 { |
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129 CleanupStack::Pop( data ); |
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130 } |
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131 else |
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132 { |
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133 // this is because data buffer is already released in CreateDecoderL |
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134 // and we must prevent automatic PopAndDestroy |
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135 CleanupStack::Pop( data ); |
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136 User::Leave(err); |
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137 } |
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138 |
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139 iOriginalSize = iImageDecoderv3->OriginalSize(); |
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140 iImageDecoderv3->DecodeL( iDisplayMode ); |
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141 } |
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142 |
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143 // --------------------------------------------------------------------------- |
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144 // CThumbnailAudioProvider::GetThumbnailL() |
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145 // Provides the thumbnail image |
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146 // --------------------------------------------------------------------------- |
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147 // |
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148 void CThumbnailAudioProvider::GetThumbnailL( RFs& /* aFs */, TDesC8* /* aBuffer */, const |
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149 TDataType& /*aMimeType */, const CThumbnailManager::TThumbnailFlags /* aFlags */, |
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150 const TDisplayMode /* aDisplayMode */, const CThumbnailManager::TThumbnailQualityPreference /*aQualityPreference*/ ) |
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151 { |
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152 TN_DEBUG1( "CThumbnailAudioProvider::GetThumbnailL() - buffer" ); |
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153 OstTrace0( TRACE_NORMAL, DUP1_CTHUMBNAILAUDIOPROVIDER_GETTHUMBNAILL, "CThumbnailAudioProvider::GetThumbnailL - buffer" ); |
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154 __ASSERT_DEBUG((EFalse), User::Panic(_L("CThumbnailAudioProvider::GetThumbnailL"), KErrNotSupported)); |
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155 } |
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156 |
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157 // --------------------------------------------------------------------------- |
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158 // CThumbnailAudioProvider::GetThumbnailL() |
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159 // Provides the thumbnail image |
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160 // --------------------------------------------------------------------------- |
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161 // |
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162 void CThumbnailAudioProvider::GetThumbnailL( RFs& /* aFs */, TDesC8& /*aBuffer */) |
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163 { |
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164 TN_DEBUG1( "CThumbnailAudioProvider::GetThumbnailL() - buffer no mime" ); |
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165 OstTrace0( TRACE_NORMAL, DUP2_CTHUMBNAILAUDIOPROVIDER_GETTHUMBNAILL, "CThumbnailAudioProvider::GetThumbnailL - buffer no mime" ); |
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166 __ASSERT_DEBUG((EFalse), User::Panic(_L("CThumbnailAudioProvider::GetThumbnailL"), KErrNotSupported)); |
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167 User::Leave( KErrNotSupported ); |
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168 } |
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169 |
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170 // --------------------------------------------------------------------------- |
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171 // Cancel thumbnail request |
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172 // --------------------------------------------------------------------------- |
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173 // |
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174 void CThumbnailAudioProvider::CancelGetThumbnail() |
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175 { |
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176 if ( iImageDecoderv3) |
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177 { |
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178 iImageDecoderv3->Cancel(); |
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179 } |
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180 |
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181 } |
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182 |
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183 // ======== GLOBAL FUNCTIONS ======== |
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184 |
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185 // ----------------------------------------------------------------------------- |
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186 // ImplementationTable |
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187 // Define the interface UIDs |
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188 // ----------------------------------------------------------------------------- |
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189 // |
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190 const TImplementationProxy ImplementationTable[] = |
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191 { |
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192 IMPLEMENTATION_PROXY_ENTRY( THUMBNAIL_AUDIO_PROVIDER_IMP_UID, |
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193 CThumbnailAudioProvider::NewL ) |
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194 }; |
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195 |
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196 |
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197 // ----------------------------------------------------------------------------- |
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198 // ImplementationGroupProxy |
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199 // The one and only exported function that is the ECom entry point |
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200 // ----------------------------------------------------------------------------- |
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201 // |
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202 EXPORT_C const TImplementationProxy* ImplementationGroupProxy( TInt& |
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203 aTableCount ) |
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204 { |
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205 aTableCount = sizeof( ImplementationTable ) / sizeof( TImplementationProxy ); |
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206 return ImplementationTable; |
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207 } |
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208 |
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209 //End of file |
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