1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // src\plugin\Hwdevice\audio\MmfBtPcm16ToPcm16HwDevice.h

    15 // 

    16 //

    17 

    18 #ifndef __MMF_BT_PCM16_TO_PCM16_HW_DEVICE_H__

    19 #define __MMF_BT_PCM16_TO_PCM16_HW_DEVICE_H__

    20 #include <mmfbtswcodecwrapper.h>

    21 #include <mdasound.h>

    22 

    23 #include "../../../swcodecwrapper/mmfBtSwCodecDataPath.h"

    24 

    25 //note we need to keep this buffer at 8K as the tone utility expects 8K

    26 const TInt KPCM16ToPCM16BufferSize = 0x2000;

    27 const TInt KDevSoundMinFrameSize = 0x800; //2K

    28 const TInt KDevSoundMaxFrameSize = 0x4000;  //16K

    29 const TInt KDevSoundDeltaFrameSize = 0x800; //2K

    30 const TInt KDevSoundFramesPerSecond = 4;

    31 

    32 /*

    33 *

    34 * class CMMFPcm16ToPcm16HwDevice

    35 *

    36 */

    37 class CMMFPcm16ToPcm16HwDevice : public CMMFSwCodecWrapper

    38 	{

    39 public:

    40 	static  CMMFPcm16ToPcm16HwDevice* NewL();

    41 	virtual CMMFSwCodec& Codec();

    42 	~CMMFPcm16ToPcm16HwDevice(); 

    43 

    44 	TUint CalculateBufferSize();

    45 private:

    46 	void ConstructL();

    47 	};

    48 

    49 /*

    50 *

    51 * class CMMFPcm16ToPcm16Codec converts Pcm16 to pcm16

    52 *

    53 */

    54 class CMMFPcm16ToPcm16Codec : public CMMFSwCodec

    55 	{

    56 public:

    57 	virtual TCodecProcessResult ProcessL(const CMMFBuffer& /*aSource*/, CMMFBuffer& /*aDest*/);

    58 //	virtual TUint SourceBufferSize() {return KPCM16ToPCM16BufferSize;};

    59 //	virtual TUint SinkBufferSize() {return KPCM16ToPCM16BufferSize;};

    60 	virtual TUint SourceBufferSize();

    61 	virtual TUint SinkBufferSize();

    62 	virtual TBool IsNullCodec() {return ETrue;};

    63 

    64 	void SetHwDevice(CMMFPcm16ToPcm16HwDevice* aHwDevice);

    65 private:

    66 	TUint iBufferSize;

    67 	CMMFPcm16ToPcm16HwDevice* iHwDevice;

    68 	};

    69 

    70 #endif //__MMF_BT_PCM16_TO_PCM16_HW_DEVICE_H__

    71