diff -r 000000000000 -r bde4ae8d615e os/mm/mmlibs/mmfw/src/Client/Audio/mmfclientaudiostreamutils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/mm/mmlibs/mmfw/src/Client/Audio/mmfclientaudiostreamutils.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,36 @@
+// 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:
+//
+
+#if !defined __MMFCLIENTAUDIOSTREAMUTILS_H__
+#define __MMFCLIENTAUDIOSTREAMUTILS_H__
+
+#include <e32std.h>
+#include <mmf/server/sounddevice.h>
+
+class StreamUtils
+	{
+public:
+	static TUint MapChannelsMdaToMMFL(TInt aMdaChannels);
+	static TUint MapSampleRateMdaToMMFL(TInt aMdaSampleRate);
+	static TInt SampleRateAsValue(const TMMFCapabilities& aCaps);
+	static TInt BytesPerSample(const TMMFCapabilities& aCaps);
+//
+	static void CalculateLeftRightBalance(TInt& aLeft, TInt& aRight, TInt aBalance);
+	static void CalculateBalance(TInt& aBalance, TInt aLeft, TInt aRight);
+	};
+
+
+
+#endif