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1 /* |
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2 * Copyright (c) 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: |
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15 * |
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16 */ |
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17 #ifndef CMETADATA_UTILITY_ITF_H |
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18 #define CMETADATA_UTILITY_ITF_H |
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19 |
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20 |
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21 #ifdef __cplusplus |
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22 |
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23 #include <e32base.h> |
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24 #include <e32std.h> |
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25 #include <e32hashtab.h> |
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26 #include <OpenMAXAL.h> |
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27 |
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28 #include <Hxmetadatautil.h> |
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29 #include <MetaDataUtility.h> |
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30 #include <MetaDataFieldContainer.h> |
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31 #include <MetaDataField.hrh> |
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32 |
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33 |
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34 #define MAX_EXTENSION_SIZE 10 |
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35 #define uint32 unsigned int |
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36 |
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37 class CS60MetadataUtilityItf; |
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38 class CHXMetadataUtilityItf; |
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39 |
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40 NONSHARABLE_CLASS(CMetadataUtilityItf) |
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41 { |
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42 public: |
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43 |
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44 enum TValueEncodingType |
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45 { |
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46 EUnknownEncoding, |
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47 EAsciiEncoding, |
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48 EUnicodeEncoding, |
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49 EBinaryEncoding, |
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50 }; |
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51 |
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52 static CMetadataUtilityItf* New(char* uri); |
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53 |
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54 CMetadataUtilityItf(); |
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55 virtual ~CMetadataUtilityItf(); |
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56 TInt ParseSource(char* uri); |
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57 TInt OpenSource(char* uri); |
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58 TInt CalculateNumMetadataItems(TUint*); |
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59 char* GetKey(TInt index); |
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60 TInt GetValueSize(TInt index); |
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61 TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize, TInt* encodingType); |
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62 |
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63 //helper function |
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64 //extracts left part of input descriptor upto (maxLen-1) and copies content in outPtr |
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65 //append a null terminator |
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66 static TInt ExtractUCS2(TDesC& inDes, char* outPtr,TInt maxLen); |
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67 |
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68 private: |
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69 CS60MetadataUtilityItf* m_pS60Util; |
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70 CHXMetadataUtilityItf* m_pHXUtil; |
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71 }; |
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72 |
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73 |
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74 NONSHARABLE_CLASS(CS60MetadataUtilityItf) |
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75 { |
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76 public: |
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77 |
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78 static CS60MetadataUtilityItf* New(); |
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79 ~CS60MetadataUtilityItf(); |
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80 |
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81 TInt CalculateNumMetadataItems(TUint*); |
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82 |
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83 char* GetKey(TInt index); |
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84 TInt GetValueSize(TInt index); |
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85 TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize, TInt* encodingType); |
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86 |
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87 TInt ParseSource(TDesC&); |
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88 |
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89 char* KeyMapping(TMetaDataFieldId); |
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90 TInt ValueEncoding(TMetaDataFieldId); |
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91 |
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92 static bool IsSupportedExtension(char* extn); |
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93 |
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94 TInt Reset(); |
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95 |
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96 private: |
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97 |
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98 CS60MetadataUtilityItf(); |
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99 void ConstructL(); |
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100 |
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101 CMetaDataUtility* pMetaDataUtility; //S60MetadataUtility |
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102 |
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103 TUint uNumMetadataItems; |
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104 |
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105 }; |
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106 |
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107 NONSHARABLE_CLASS(CHXMetadataUtilityItf) |
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108 { |
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109 public: |
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110 |
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111 static CHXMetadataUtilityItf* New(); |
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112 ~CHXMetadataUtilityItf(); |
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113 |
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114 TInt CalculateNumMetadataItems(TUint*); |
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115 |
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116 char* GetKey(TInt index); |
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117 |
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118 TInt ValueEncoding(HXMetaDataKeys::EHXMetaDataId fldID); |
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119 TInt GetValueSize(TInt index); |
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120 TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize, TInt* encodingType); |
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121 |
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122 TInt ParseSource(TDesC&); |
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123 char* KeyMapping(HXMetaDataKeys::EHXMetaDataId); |
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124 |
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125 TInt Reset(); |
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126 |
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127 private: |
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128 CHXMetadataUtilityItf(); |
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129 void ConstructL(); |
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130 |
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131 CHXMetaDataUtility *pHXMetaDataUtility; |
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132 |
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133 TUint uNumMetadataItems; |
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134 }; |
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135 |
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136 |
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137 #else |
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138 |
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139 extern void* mmf_metadata_utility_init(char*); |
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140 extern void mmf_metadata_utility_destroy(void* context); |
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141 extern XAresult mmf_metadata_utility_parse_source(void* , char*); |
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142 extern XAresult mmf_get_item_count(void* context, XAuint32* itemCount); |
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143 extern XAresult mmf_get_key_size(void* context, XAuint32 keyIndex, XAuint32* keySize); |
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144 extern XAresult mmf_get_key(void* context, XAuint32 index,XAuint32 keySize, XAMetadataInfo *pKey); |
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145 extern XAresult mmf_get_value_size(void* context, XAuint32 index, XAuint32 *pValueSize); |
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146 extern XAresult mmf_get_value(void* context, XAuint32 index, XAuint32 valueSize, XAMetadataInfo *pValue); |
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147 #endif //__cplusplus |
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148 |
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149 #endif |