khronosfws/openmax_al/src/mmf_adaptation/cmetadatautilityitf.h
changeset 31 8dfd592727cb
parent 22 128eb6a32b84
child 42 1fa3fb47b1e3
equal deleted inserted replaced
22:128eb6a32b84 31:8dfd592727cb
     1 /*
     1 /*
     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
     2  * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
     3 * All rights reserved.
     3  * All rights reserved.
     4 * This component and the accompanying materials are made available
     4  * This component and the accompanying materials are made available
     5 * under the terms of "Eclipse Public License v1.0"
     5  * under the terms of "Eclipse Public License v1.0"
     6 * which accompanies this distribution, and is available
     6  * which accompanies this distribution, and is available
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html".
     8 *
     8  *
     9 * Initial Contributors:
     9  * Initial Contributors:
    10 * Nokia Corporation - initial contribution.
    10  * Nokia Corporation - initial contribution.
    11 *
    11  *
    12 * Contributors:
    12  * Contributors:
    13 *
    13  *
    14 * Description: 
    14  * Description: Metadata backend engine
    15 *
    15  *
    16 */
    16  */
       
    17 
    17 #ifndef CMETADATA_UTILITY_ITF_H
    18 #ifndef CMETADATA_UTILITY_ITF_H
    18 #define CMETADATA_UTILITY_ITF_H
    19 #define CMETADATA_UTILITY_ITF_H
    19 
       
    20 
    20 
    21 #ifdef __cplusplus
    21 #ifdef __cplusplus
    22 
    22 
    23 #include <e32base.h>
    23 #include <e32base.h>
    24 #include <e32std.h>
    24 #include <e32std.h>
    28 #include <hxmetadatautil.h>
    28 #include <hxmetadatautil.h>
    29 #include <MetaDataUtility.h>
    29 #include <MetaDataUtility.h>
    30 #include <MetaDataFieldContainer.h>
    30 #include <MetaDataFieldContainer.h>
    31 #include <MetaDataField.hrh>
    31 #include <MetaDataField.hrh>
    32 
    32 
    33 
       
    34 #define MAX_EXTENSION_SIZE 10
    33 #define MAX_EXTENSION_SIZE 10
    35 #define uint32 unsigned int
    34 #define uint32 unsigned int
    36 
    35 
    37 class CS60MetadataUtilityItf;
    36 class CS60MetadataUtilityItf;
    38 class CHXMetadataUtilityItf;
    37 class CHXMetadataUtilityItf;
    39 
    38 
    40 NONSHARABLE_CLASS(CMetadataUtilityItf)
    39 NONSHARABLE_CLASS(CMetadataUtilityItf)
    41 {
    40     {
    42 public:
    41 public:
    43 
    42 
    44 	enum TValueEncodingType
    43     enum TValueEncodingType
    45 	{
    44         {
    46 		EUnknownEncoding,
    45         EUnknownEncoding, EAsciiEncoding, EUnicodeEncoding, EBinaryEncoding,
    47 		EAsciiEncoding,
    46         };
    48 		EUnicodeEncoding,
       
    49 		EBinaryEncoding,	
       
    50 	};
       
    51 	
       
    52 	static CMetadataUtilityItf* New(char* uri);
       
    53 
    47 
    54 	CMetadataUtilityItf();
    48     static CMetadataUtilityItf* New(char* uri);
    55 	virtual ~CMetadataUtilityItf();
       
    56 	TInt ParseSource(char* uri);
       
    57 	TInt OpenSource(char* uri);	
       
    58 	TInt CalculateNumMetadataItems(TUint*);
       
    59 	char* GetKey(TInt index);
       
    60 	TInt GetValueSize(TInt index);
       
    61 	TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize, TInt* encodingType);
       
    62 
    49 
    63 	//helper function
    50     CMetadataUtilityItf();
    64 	//extracts left part of input descriptor upto (maxLen-1) and copies content in outPtr
    51     virtual ~CMetadataUtilityItf();
    65 	//append a null terminator
    52     TInt ParseSource(char* uri);
    66 	static TInt ExtractUCS2(TDesC& inDes, char* outPtr,TInt maxLen);
    53     TInt OpenSource(char* uri);
       
    54     TInt CalculateNumMetadataItems(TUint*);
       
    55     char* GetKey(TInt index);
       
    56     TInt GetValueSize(TInt index);
       
    57     TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
       
    58             TInt* encodingType);
       
    59 
       
    60     //helper function
       
    61     //extracts left part of input descriptor upto (maxLen-1) and copies content in outPtr
       
    62     //append a null terminator
       
    63     static TInt ExtractUCS2(TDesC& inDes, char* outPtr, TInt maxLen);
    67 
    64 
    68 private:
    65 private:
    69 	CS60MetadataUtilityItf* m_pS60Util;
    66     CS60MetadataUtilityItf* m_pS60Util;
    70 	CHXMetadataUtilityItf*  m_pHXUtil;
    67     CHXMetadataUtilityItf* m_pHXUtil;
    71 };
    68     };
    72 
       
    73 
    69 
    74 NONSHARABLE_CLASS(CS60MetadataUtilityItf)
    70 NONSHARABLE_CLASS(CS60MetadataUtilityItf)
    75 {
    71     {
    76 public:
    72 public:
    77 
    73 
    78 	static CS60MetadataUtilityItf* New();
    74     static CS60MetadataUtilityItf* New();
    79   	~CS60MetadataUtilityItf();
    75     ~CS60MetadataUtilityItf();
    80 
    76 
    81 	TInt CalculateNumMetadataItems(TUint*);
    77     TInt CalculateNumMetadataItems(TUint*);
    82 	
       
    83 	char* GetKey(TInt index);
       
    84 	TInt  GetValueSize(TInt index);
       
    85 	TInt  GetValue(TInt index, char* data, TInt maxLength, TInt* outSize, TInt* encodingType);
       
    86 
    78 
    87 	TInt 	ParseSource(TDesC&);
    79     char* GetKey(TInt index);
       
    80     TInt GetValueSize(TInt index);
       
    81     TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
       
    82             TInt* encodingType);
    88 
    83 
    89 	char* KeyMapping(TMetaDataFieldId);
    84     TInt ParseSource(TDesC&);
    90 	TInt  ValueEncoding(TMetaDataFieldId);
       
    91 
    85 
    92 	static bool IsSupportedExtension(char* extn);
    86     char* KeyMapping(TMetaDataFieldId);
       
    87     TInt ValueEncoding(TMetaDataFieldId);
    93 
    88 
    94 	TInt Reset();
    89     static bool IsSupportedExtension(char* extn);
       
    90 
       
    91     TInt Reset();
    95 
    92 
    96 private:
    93 private:
    97 	
    94 
    98     CS60MetadataUtilityItf();
    95     CS60MetadataUtilityItf();
    99     void ConstructL();
    96     void ConstructL();
   100 	
    97 
   101    	CMetaDataUtility* pMetaDataUtility; //S60MetadataUtility
    98     CMetaDataUtility* pMetaDataUtility; //S60MetadataUtility
   102    	
    99 
   103 	TUint 		uNumMetadataItems;		
   100     TUint uNumMetadataItems;
   104 		
   101 
   105 };
   102     };
   106 
   103 
   107 NONSHARABLE_CLASS(CHXMetadataUtilityItf)
   104 NONSHARABLE_CLASS(CHXMetadataUtilityItf)
   108 {
   105     {
   109 public:
   106 public:
   110 
   107 
   111 	static CHXMetadataUtilityItf* New();
   108     static CHXMetadataUtilityItf* New();
   112   ~CHXMetadataUtilityItf();
   109     ~CHXMetadataUtilityItf();
   113 
   110 
   114 	TInt CalculateNumMetadataItems(TUint*);
   111     TInt CalculateNumMetadataItems(TUint*);
   115 	
   112 
   116 	char* GetKey(TInt index);
   113     char* GetKey(TInt index);
   117 	
   114 
   118 	TInt ValueEncoding(HXMetaDataKeys::EHXMetaDataId fldID);
   115     TInt ValueEncoding(HXMetaDataKeys::EHXMetaDataId fldID);
   119 	TInt  GetValueSize(TInt index);
   116     TInt GetValueSize(TInt index);
   120 	TInt  GetValue(TInt index, char* data, TInt maxLength, TInt* outSize, TInt* encodingType);
   117     TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
   121 	
   118             TInt* encodingType);
   122 	TInt 	ParseSource(TDesC&);
   119 
   123 	char* KeyMapping(HXMetaDataKeys::EHXMetaDataId);
   120     TInt ParseSource(TDesC&);
   124 	
   121     char* KeyMapping(HXMetaDataKeys::EHXMetaDataId);
   125 	TInt Reset();
   122 
       
   123     TInt Reset();
   126 
   124 
   127 private:
   125 private:
   128 	CHXMetadataUtilityItf();
   126     CHXMetadataUtilityItf();
   129     void ConstructL();
   127     void ConstructL();
   130    	
       
   131   CHXMetaDataUtility *pHXMetaDataUtility;
       
   132   
       
   133   TUint 	  uNumMetadataItems;	  
       
   134 };
       
   135 
   128 
       
   129     CHXMetaDataUtility *pHXMetaDataUtility;
       
   130 
       
   131     TUint uNumMetadataItems;
       
   132     };
   136 
   133 
   137 #else
   134 #else
   138 
   135 
   139 extern void* mmf_metadata_utility_init(char*);
   136 extern void* mmf_metadata_utility_init(char*);
   140 extern void  mmf_metadata_utility_destroy(void* context);
   137 extern void mmf_metadata_utility_destroy(void* context);
   141 extern XAresult mmf_metadata_utility_parse_source(void* , char*);
   138 extern XAresult mmf_metadata_utility_parse_source(void* , char*);
   142 extern XAresult  mmf_get_item_count(void* context, XAuint32* itemCount);
   139 extern XAresult mmf_get_item_count(void* context, XAuint32* itemCount);
   143 extern XAresult  mmf_get_key_size(void* context, XAuint32 keyIndex, XAuint32* keySize);
   140 extern XAresult mmf_get_key_size(void* context, XAuint32 keyIndex, XAuint32* keySize);
   144 extern XAresult  mmf_get_key(void* context, XAuint32 index,XAuint32 keySize, XAMetadataInfo *pKey);
   141 extern XAresult mmf_get_key(void* context, XAuint32 index,XAuint32 keySize, XAMetadataInfo *pKey);
   145 extern XAresult  mmf_get_value_size(void* context, XAuint32 index, XAuint32 *pValueSize);
   142 extern XAresult mmf_get_value_size(void* context, XAuint32 index, XAuint32 *pValueSize);
   146 extern XAresult  mmf_get_value(void* context, XAuint32 index, XAuint32 valueSize, XAMetadataInfo *pValue);
   143 extern XAresult mmf_get_value(void* context, XAuint32 index, XAuint32 valueSize, XAMetadataInfo *pValue);
   147 #endif //__cplusplus
   144 #endif //__cplusplus
   148 
       
   149 #endif
   145 #endif