--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/a3fdevsound/inc/a3ffourcclookup.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,98 @@
+//a3ffourcclookup.h
+
+// Copyright (c) 2007-2009 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:
+//
+
+/**
+ @file
+ @internalTechnology 
+*/
+
+ 
+#ifndef A3FFOURCCLOOKUP_H
+#define A3FFOURCCLOOKUP_H
+
+//INCLUDES
+#include <ecom/ecom.h>
+#include <mmf/common/mmfutilities.h>
+#include <e32hashtab.h> 
+#include <a3f/a3fbase.h>
+
+//CLASS DECLARATION
+/*
+CFourCCConvertor class
+This is a class used to load the format Uids and fourCC codes in to Cache Table.
+This class is used for resolution of the fourCC code corresponding to format UID and vice-versa.
+*/ 
+class CFourCCConvertor : public CBase
+	{
+public: 
+	/*
+	Create a Single instance of a class.If the instance is already created, It
+	returns that instance.
+	*/
+	IMPORT_C static CFourCCConvertor* NewL();
+	
+	/*
+	This method is used to find fourCC code corresponding to format Uid from cache table.
+	@param TUid aFormat a unique format Uid.
+	@param TFourCC &aFourCC The unique FourCC code.
+	@return an error code. KErrNone if successful, otherwise one of the system wide error codes.
+	*/
+	IMPORT_C TInt FormatToFourCC(TUid aFormat,TFourCC &aFourCC);
+
+	/*
+	This method is used to find format Uid corresponding to fourCC Code from cache table.
+	@param TFourCC &aFourCC The unique FourCC code.
+	@param TUid aFormat a unique format Uid.
+	@return an error code. KErrNone if successful, otherwise one of the system wide error codes.
+	*/
+	IMPORT_C TInt FourCCToFormat(TFourCC aFourCC, TUid &aFormat) const;
+
+	/*
+ 	Destructor    
+	*/
+	virtual ~CFourCCConvertor();
+
+private:
+	/*
+	Constructor
+	*/
+	CFourCCConvertor();
+
+	/*
+	Second Phase Constructor
+	*/
+	void ConstructL();
+
+	/*
+	This method is used to initialize the cache tables. This method uses two cache
+	tables. It Stores Format Uids corresponding to fourCC Codes in one cache table
+	and fourCC codes corresponding to Format Uids in another cache table. In the First 
+	cache table,it uses format Uid as key and in the second cache table, it uses fourCC code as key. 
+	*/
+	void LoadL();
+
+    // DATA DECLARATION
+
+	/* Cache Table that stores FourCC codes corresponding to Format Uids */
+	RHashMap<TUint32,TUint32> *iHashFourCCToFormat;
+	
+	/* Cache Table that stores format Uids corresponding to FourCC codes */
+	RHashMap<TUint32,TUint32> *iHashFormatToFourCC;
+
+	};
+
+#endif // A3FFOURCCLOOKUP_H