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1 /* |
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2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Harvests meta data from video file.* |
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15 */ |
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16 |
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17 |
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18 #ifndef __CHARVESTERVIDEOPLUGIN_H__ |
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19 #define __CHARVESTERVIDEOPLUGIN_H__ |
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20 |
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21 #include <e32base.h> |
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22 #include "harvesterplugin.h" |
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23 |
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24 #include "mimetypemapping.h" |
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25 |
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26 // FORWARD DECLARATION |
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27 class CMdEObjectDef; |
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28 class CMdEPropertyDef; |
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29 class CMdEObject; |
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30 class CHarvesterData; |
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31 |
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32 class TVideoMetadataHandling |
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33 { |
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34 public: |
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35 enum TVideoMetadataHandlingLibrary |
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36 { |
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37 EMp4LibHandling, |
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38 EHexilMetadataHandling |
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39 }; |
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40 |
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41 TVideoMetadataHandlingLibrary iLibrary; |
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42 TPtrC iObjectDef; |
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43 TPtrC iVideoMime; |
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44 TPtrC iAudioMime; |
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45 |
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46 TVideoMetadataHandling() |
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47 { |
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48 } |
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49 |
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50 TVideoMetadataHandling(TVideoMetadataHandlingLibrary aLibrary, |
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51 TPtrC aObjectDef, TPtrC aVideoMime, TPtrC aAudioMime) : |
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52 iLibrary( aLibrary ), iObjectDef( aObjectDef ), |
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53 iVideoMime( aVideoMime ), iAudioMime( aAudioMime ) |
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54 { |
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55 } |
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56 |
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57 TVideoMetadataHandling(const TVideoMetadataHandling& aHandling) : |
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58 iLibrary( aHandling.iLibrary ), iObjectDef( aHandling.iObjectDef ), |
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59 iVideoMime( aHandling.iVideoMime ), iAudioMime( aHandling.iAudioMime ) |
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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 typedef TMimeTypeMapping<TVideoMetadataHandling> THarvestingHandling; |
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65 |
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66 /** |
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67 * A data transfer class for harvested video metadata. |
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68 */ |
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69 class CVideoHarvestData : public CBase |
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70 { |
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71 public: |
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72 TBool iVideoObject; // Is object video or audio |
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73 |
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74 TTime iModified; |
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75 TInt64 iFileSize; // in bytes |
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76 TReal32 iDuration; // in seconds |
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77 TReal32 iFrameRate; // in frames per second |
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78 TReal32 iSamplingFrequency; // in kHz |
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79 TInt iVideoBitrate; // in kbps |
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80 TInt iAudioBitrate; // in kbps |
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81 TInt iClipBitrate; // in kbps |
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82 TInt16 iFrameWidth; |
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83 TInt16 iFrameHeight; |
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84 HBufC* iCopyright; |
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85 HBufC* iAuthor; |
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86 HBufC* iGenre; |
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87 HBufC* iPerformer; // Artist |
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88 HBufC* iDescription; |
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89 |
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90 HBufC* iMimeBuf; |
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91 TUint32 iCodec; |
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92 |
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93 CVideoHarvestData() : CBase() |
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94 { |
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95 } |
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96 |
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97 ~CVideoHarvestData() |
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98 { |
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99 delete iCopyright; |
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100 delete iAuthor; |
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101 delete iGenre; |
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102 delete iPerformer; |
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103 delete iDescription; |
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104 |
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105 delete iMimeBuf; |
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106 } |
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107 }; |
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108 |
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109 /** |
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110 * Helper class to hold all property definitions |
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111 * (pointers are not owned) used in harvester video plug-in. |
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112 */ |
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113 class CHarvesterVideoPluginPropertyDefs : public CBase |
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114 { |
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115 public: |
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116 // Common property definitions |
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117 CMdEPropertyDef* iCreationDatePropertyDef; |
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118 CMdEPropertyDef* iLastModifiedDatePropertyDef; |
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119 CMdEPropertyDef* iSizePropertyDef; |
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120 CMdEPropertyDef* iTimeOffsetPropertyDef; |
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121 CMdEPropertyDef* iItemTypePropertyDef; |
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122 |
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123 // Media property definitions |
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124 CMdEPropertyDef* iReleaseDatePropertyDef; |
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125 CMdEPropertyDef* iCaptureDatePropertyDef; |
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126 CMdEPropertyDef* iDurationPropertyDef; |
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127 CMdEPropertyDef* iWidthPropertyDef; |
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128 CMdEPropertyDef* iHeightPropertyDef; |
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129 CMdEPropertyDef* iBitratePropertyDef; |
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130 CMdEPropertyDef* iCopyrightPropertyDef; |
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131 CMdEPropertyDef* iAuthorPropertyDef; |
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132 CMdEPropertyDef* iGenrePropertyDef; |
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133 CMdEPropertyDef* iArtistPropertyDef; |
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134 CMdEPropertyDef* iDescriptionPropertyDef; |
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135 |
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136 CMdEPropertyDef* iAudioFourCCDef; |
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137 |
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138 // Video property definitions |
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139 CMdEPropertyDef* iFrameratePropertyDef; |
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140 |
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141 // Audio property definitions |
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142 CMdEPropertyDef* iSamplingFrequencyPropertyDef; |
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143 |
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144 private: |
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145 CHarvesterVideoPluginPropertyDefs(); |
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146 |
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147 void ConstructL(CMdEObjectDef& aObjectDef); |
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148 |
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149 public: |
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150 static CHarvesterVideoPluginPropertyDefs* NewL(CMdEObjectDef& aObjectDef); |
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151 }; |
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152 |
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153 class CHarvesterVideoPlugin : public CHarvesterPlugin |
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154 { |
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155 public: |
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156 /** |
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157 * Constructs a new CHarvesterVideoPlugin implementation. |
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158 * |
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159 * @return A pointer to the new CHarvesterVideoPlugin implementation |
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160 */ |
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161 static CHarvesterVideoPlugin* NewL(); |
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162 |
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163 /** |
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164 * Destructor |
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165 */ |
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166 virtual ~CHarvesterVideoPlugin(); |
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167 |
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168 void GetObjectType( const TDesC& aUri, TDes& aObjectType ); |
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169 |
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170 /** |
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171 * Harvests several files. Inherited from CHarvestPlugin. |
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172 * |
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173 * @param aHarvesterData CHarvesterData datatype containing needed harvest data |
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174 * @param aClientData TAny* to client specific data |
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175 */ |
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176 void HarvestL( CHarvesterData* aHD ); |
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177 |
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178 private: |
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179 /** |
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180 * C++ constructor - not exported; |
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181 * implicitly called from NewL() |
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182 * |
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183 * @return an instance of CHarvesterVideoPlugin. |
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184 */ |
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185 CHarvesterVideoPlugin(); |
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186 |
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187 /** |
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188 * 2nd phase construction, called by NewLC() |
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189 */ |
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190 void ConstructL(); |
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191 |
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192 /** |
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193 * Gathers data from file to meta data object. |
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194 * |
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195 * @param aMetadataObject A reference to meta data object to gather the data. |
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196 * @param aHarvestData An object to store harvested video file data. |
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197 */ |
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198 void GatherDataL( CMdEObject& aMetadataObject, CVideoHarvestData& aHarvestData ); |
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199 |
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200 /** |
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201 * Handle addition of new mde video objects. |
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202 * |
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203 * @param aMetadataObject A reference to meta data object to gather the data. |
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204 * @param aHarvestData An object containing harvested video file data. |
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205 */ |
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206 void HandleObjectPropertiesL( CHarvesterData& aHD, CVideoHarvestData& aVHD, TBool aIsAdd ); |
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207 |
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208 private: |
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209 void GetMp4Type( RFile64& aFile, TDes& aType ); |
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210 |
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211 void GetRmTypeL( RFile64& aFile, TDes& aType ); |
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212 |
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213 const THarvestingHandling* FindHandler( const TDesC& aUri ); |
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214 |
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215 void CheckForCodecSupport( HBufC* aMimeBuffer, CVideoHarvestData& aVHD ); |
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216 |
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217 private: |
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218 RArray<THarvestingHandling> iMimeTypeMappings; |
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219 |
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220 CHarvesterVideoPluginPropertyDefs* iPropDefs; |
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221 }; |
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222 |
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223 #endif // __CHARVESTERVIDEOPLUGIN_H__ |