diff -r 000000000000 -r 71ca22bcf22a mmserv/metadatautility/Src/MetaDataSourceDescriptor.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/metadatautility/Src/MetaDataSourceDescriptor.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,125 @@
+/*
+* Copyright (c) 2004 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:  This class implements the interface specified in CMetaDataSource
+*				 when audio source is from a descriptor.
+*
+*/
+
+
+
+#ifndef CMETADATASOURCEDESCRIPTOR_H
+#define CMETADATASOURCEDESCRIPTOR_H
+
+// INCLUDES
+#include "MetaDataSource.h"
+
+// CLASS DECLARATION
+
+/**
+*  This class implements the interface specified in CMetaDataSource
+*  when audio source is from a descriptor.
+*
+*  @lib MetaDataUtility.lib
+*  @since 3.0
+*/
+class CMetaDataSourceDescriptor : public CMetaDataSource
+	{
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+		* @param aDes Source descriptor
+		* @return A pointer to a new instance of this class
+        */
+        static CMetaDataSourceDescriptor* NewL( const TDesC8& aDes );
+
+        /**
+        * Destructor.
+        */
+        virtual ~CMetaDataSourceDescriptor();
+
+    public: // Functions from base classes
+
+        /**
+        * Reads sufficient data from the source to fill the specified 8-bit descriptor
+        * up to its maximum length.
+        * @since 3.0
+        * @param aDes Contains the data that was read
+		* @param aLength How many bytes will be read
+        * @return KErrNone, or one of the systemwide error codes.
+		*/
+		void ReadL( TDes8& aDes );
+
+        /**
+        * Reads data of specified length from the source into the specified 8-bit descriptor.
+        * @since 3.0
+        * @param aDes Contains the data that was read. Note that the descriptor
+		*        length must be at least aLength!
+		* @param aLength How many bytes will be read
+        * @return KErrNone, or one of the systemwide error codes.
+		*/
+		void ReadL( TDes8& aDes, TInt aLength );
+
+        /**
+        * Reads data from specified position in the source into the specified 8-bit descriptor
+        * up to its maximum length.
+        * @since 3.0
+        * @param aPos Offset from current position
+		* @param aDes Contains the data that was read
+        * @return KErrNone, or one of the systemwide error codes.
+		*/
+		void ReadL( TInt aPos, TDes8& aDes );
+
+        /**
+        * Reads data from specified position in the source into the specified 8-bit descriptor
+        * up to its maximum length.
+        * @since 3.0
+        * @param aPos Offset from current position
+		* @param aDes Contains the data that was read
+		* @param aLength How many bytes will be read
+        * @return KErrNone, or one of the systemwide error codes.
+		*/
+		void ReadL( TInt aPos, TDes8& aDes, TInt aLength );
+
+        /**
+        * Size of the source in bytes.
+        * @since 3.0
+        * @param aSize On return, the size is stored here.
+        * @return KErrNone, or one of the systemwide error codes.
+		*/
+		TInt Size( TInt& aSize ) const;
+
+	private:
+
+        /**
+        * C++ default constructor.
+        */
+		CMetaDataSourceDescriptor();
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+		void ConstructL( const TDesC8& aDes );
+
+ 	private:	// Data
+
+		// Source descriptor
+		TPtrC8 iSource;
+		// Source length
+		TInt iLength;
+	};
+
+#endif      // CMETADATASOURCEDESCRIPTOR_H
+
+// End of File