diff -r a36789189b53 -r 095bea5f582e khronosfws/openmax_al/src/mmf_adaptation/cmetadatautilityitf.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/khronosfws/openmax_al/src/mmf_adaptation/cmetadatautilityitf.h	Tue Aug 31 15:43:02 2010 +0300
@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description: Metadata backend engine
+ *
+ */
+
+#ifndef CMETADATA_UTILITY_ITF_H
+#define CMETADATA_UTILITY_ITF_H
+
+#ifdef __cplusplus
+
+#include <e32base.h>
+#include <e32std.h>
+#include <e32hashtab.h>
+#include <openmaxalwrapper.h>
+
+#include <hxmetadatautil.h>
+#include <MetaDataUtility.h>
+#include <MetaDataFieldContainer.h>
+#include <MetaDataField.hrh>
+
+#define MAX_EXTENSION_SIZE 10
+#define uint32 unsigned int
+
+class CS60MetadataUtilityItf;
+class CHXMetadataUtilityItf;
+
+NONSHARABLE_CLASS(CMetadataUtilityItf)
+    {
+public:
+
+    enum TValueEncodingType
+        {
+        EUnknownEncoding, EAsciiEncoding, EUnicodeEncoding, EBinaryEncoding,
+        };
+
+    static CMetadataUtilityItf* New(char* uri);
+
+    CMetadataUtilityItf();
+    virtual ~CMetadataUtilityItf();
+    TInt ParseSource(char* uri);
+    TInt OpenSource(char* uri);
+    TInt CalculateNumMetadataItems(TUint*);
+    char* GetKey(TInt index);
+    TInt GetValueSize(TInt index);
+    TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
+            TInt* encodingType);
+
+    //helper function
+    //extracts left part of input descriptor upto (maxLen-1) and copies content in outPtr
+    //append a null terminator
+    static TInt ExtractUCS2(TDesC& inDes, char* outPtr, TInt maxLen);
+
+private:
+    CS60MetadataUtilityItf* m_pS60Util;
+    CHXMetadataUtilityItf* m_pHXUtil;
+    };
+
+NONSHARABLE_CLASS(CS60MetadataUtilityItf)
+    {
+public:
+
+    static CS60MetadataUtilityItf* New();
+    ~CS60MetadataUtilityItf();
+
+    TInt CalculateNumMetadataItems(TUint*);
+
+    char* GetKey(TInt index);
+    TInt GetValueSize(TInt index);
+    TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
+            TInt* encodingType);
+
+    TInt ParseSource(TDesC&);
+
+    char* KeyMapping(TMetaDataFieldId);
+    TInt ValueEncoding(TMetaDataFieldId);
+
+    static bool IsSupportedExtension(char* extn);
+
+    TInt Reset();
+
+private:
+
+    CS60MetadataUtilityItf();
+    void ConstructL();
+
+    CMetaDataUtility* pMetaDataUtility; //S60MetadataUtility
+
+    TUint uNumMetadataItems;
+
+    };
+
+NONSHARABLE_CLASS(CHXMetadataUtilityItf)
+    {
+public:
+
+    static CHXMetadataUtilityItf* New();
+    ~CHXMetadataUtilityItf();
+
+    TInt CalculateNumMetadataItems(TUint*);
+
+    char* GetKey(TInt index);
+
+    TInt ValueEncoding(HXMetaDataKeys::EHXMetaDataId fldID);
+    TInt GetValueSize(TInt index);
+    TInt GetValue(TInt index, char* data, TInt maxLength, TInt* outSize,
+            TInt* encodingType);
+
+    TInt ParseSource(TDesC&);
+    char* KeyMapping(HXMetaDataKeys::EHXMetaDataId);
+
+    TInt Reset();
+
+private:
+    CHXMetadataUtilityItf();
+    void ConstructL();
+
+    CHXMetaDataUtility *pHXMetaDataUtility;
+
+    TUint uNumMetadataItems;
+    };
+
+#else
+
+extern void* mmf_metadata_utility_init(char*);
+extern void mmf_metadata_utility_destroy(void* context);
+extern XAresult mmf_metadata_utility_parse_source(void* , char*);
+extern XAresult mmf_get_item_count(void* context, XAuint32* itemCount);
+extern XAresult mmf_get_key_size(void* context, XAuint32 keyIndex, XAuint32* keySize);
+extern XAresult mmf_get_key(void* context, XAuint32 index,XAuint32 keySize, XAMetadataInfo *pKey);
+extern XAresult mmf_get_value_size(void* context, XAuint32 index, XAuint32 *pValueSize);
+extern XAresult mmf_get_value(void* context, XAuint32 index, XAuint32 valueSize, XAMetadataInfo *pValue);
+#endif //__cplusplus
+#endif