--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundrefplugin/src/swcodecwrapper/mmfSwCodecUtility.cpp	Fri Oct 08 19:40:43 2010 +0100
@@ -0,0 +1,82 @@
+// Copyright (c) 2003-2009 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:
+//
+
+#include <e32std.h>
+#include "mmfSwCodecUtility.h"
+
+
+
+/******************************************************************
+ * CMMFSwCodecUtility
+ ******************************************************************/
+CMMFSwCodecUtility::CMMFSwCodecUtility()
+	{
+	}
+
+
+CMMFSwCodecUtility::~CMMFSwCodecUtility()
+	{
+	}
+
+CMMFSwCodecUtility* CMMFSwCodecUtility::NewL()
+	{
+	CMMFSwCodecUtility* self = new(ELeave) CMMFSwCodecUtility();
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop();
+	return self;
+	}
+
+void CMMFSwCodecUtility::ConstructL()
+	{
+	}
+
+void CMMFSwCodecUtility::ConfigAudioRamper(TInt64 aRampTime, TInt aSampleRate, TInt aChannels)
+	{
+	iRampSamples = I64LOW(((TInt64(aSampleRate) * aRampTime) /1000000 )); // Add this
+	iRampSamplesLeft = iRampSamples;
+	iChannels = aChannels;
+	iRampIncr = 0;
+	iSkip = ETrue;	                       
+	}
+
+TBool CMMFSwCodecUtility::RampAudio(CMMFDataBuffer* aBuffer)
+	{
+	TInt i=0;
+	TInt length = aBuffer->Data().Length()>>1;
+	TInt16* sample = REINTERPRET_CAST(TInt16*,&aBuffer->Data()[0]);
+	TInt64 theResult(0);
+	while ((i < length) && (iRampIncr < iRampSamples))
+		{
+		theResult = sample[i];
+		theResult *= iRampIncr;
+		theResult /= iRampSamples;
+		sample[i] = STATIC_CAST(TInt16, I64LOW(theResult) );
+          
+		if ((iChannels == 1) || (!iSkip))
+			{
+			iRampIncr++;
+			}
+		iSkip = !iSkip;
+		i++;
+		}
+
+	if (iRampIncr < iRampSamples)
+		return ETrue;
+	else
+		return EFalse;
+
+	}
+