diff -r 000000000000 -r bde4ae8d615e os/mm/devsound/devsoundrefplugin/src/plugin/audio/MMFpcm16ToPcm16HwDevice.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/mm/devsound/devsoundrefplugin/src/plugin/audio/MMFpcm16ToPcm16HwDevice.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,90 @@
+// Copyright (c) 2002-2009 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\mmf\src\plugin\Hwdevice\audio\pcm16ToPcm16HwDevice.h
+// 
+//
+
+#ifndef __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
+#define __MMF_PCM16_TO_PCM16_HW_DEVICE_H__
+#include <mmf/server/mmfswcodecwrapper.h>
+
+#ifdef SYMBIAN_MDF_SHAREDCHUNK_SOUNDDRIVER
+	#include "mdasoundadapter.h"
+#else
+	#include <mdasound.h>
+#endif
+
+#include "../../swcodecwrapper/mmfswaudioinput.h"
+
+#include "../../swcodecwrapper/mmfSwCodecDataPath.h"
+
+// for the bitrate custom interface
+#include <mmf/server/devsoundstandardcustominterfaces.h>
+
+//note we need to keep this buffer at 8K as the tone utility expects 8K
+const TInt KPCM16ToPCM16BufferSize = 0x2000;
+const TInt KDevSoundMinFrameSize = 0x800; //2K
+const TInt KDevSoundMaxFrameSize = 0x4000;  //16K
+const TInt KDevSoundDeltaFrameSize = 0x800; //2K
+const TInt KDevSoundFramesPerSecond = 4;
+
+/*
+*
+* class CMMFPcm16ToPcm16HwDevice
+*
+*/
+class CMMFPcm16ToPcm16HwDevice : public CMMFSwCodecWrapper,
+								 public MMMFDevSoundCustomInterfaceBitRate
+	{
+public:
+	static  CMMFPcm16ToPcm16HwDevice* NewL();
+	virtual CMMFSwCodec& Codec();
+	virtual TAny* CustomInterface(TUid aInterfaceId);
+	~CMMFPcm16ToPcm16HwDevice(); 
+
+	TUint CalculateBufferSize();
+private:
+	// from MMMFDevSoundCustomInterfaceBitRate
+	virtual void GetSupportedBitRatesL(RArray<TInt>& aSupportedBitRates);
+	virtual TInt BitRateL();
+	virtual void SetBitRateL(TInt aBitRate);
+	
+	void BitRatesFromSampleRatesL(RArray<TInt>& aSupportedBitRates, const RArray<TInt>& aSupportedSampleRates);
+
+	void ConstructL();
+	};
+
+/*
+*
+* class CMMFPcm16ToPcm16Codec converts Pcm16 to pcm16
+*
+*/
+class CMMFPcm16ToPcm16Codec : public CMMFSwCodec
+	{
+public:
+	virtual TCodecProcessResult ProcessL(const CMMFBuffer& /*aSource*/, CMMFBuffer& /*aDest*/);
+//	virtual TUint SourceBufferSize() {return KPCM16ToPCM16BufferSize;};
+//	virtual TUint SinkBufferSize() {return KPCM16ToPCM16BufferSize;};
+	virtual TUint SourceBufferSize();
+	virtual TUint SinkBufferSize();
+	virtual TBool IsNullCodec() {return ETrue;};
+
+	void SetHwDevice(CMMFPcm16ToPcm16HwDevice* aHwDevice);
+private:
+	TUint iBufferSize;
+	CMMFPcm16ToPcm16HwDevice* iHwDevice;
+	};
+
+#endif //__MMF_PCM16_TO_PCM16_HW_DEVICE_H__
+