Symaptic: os/mm/devsound/devsoundrefplugin/src/plugin/audio/mmfpcm16toMulawhwdevice.h@260cb5ec6c19

     1 /*

     2 * Copyright (c) 2002-2003 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    18 #ifndef __MMF_PCM16_TO_MULAW_HW_DEVICE_H__

    19 #define __MMF_PCM16_TO_MULAW_HW_DEVICE_H__

    21 #include <mmf/server/mmfswcodecwrapper.h>

    22 #include "MMFAudioCodec.h"

    23 #include "MMFAudioSPcm16ToMuLawCodec.h"

    25 const TInt KPCM16ToMuLawSrcBufferSize   = 0x2000;

    26 const TInt KPCM16ToMuLawSinkBufferSize  = 0x1000;

    28 /*

    29 *

    30 * CMMFPcm16ToMulawHwDevice

    31 *

    32 */

    33 class CMMFPcm16ToMulawHwDevice : public CMMFSwCodecWrapper

    34 	{

    35 public:

    36 	static  CMMFPcm16ToMulawHwDevice* NewL();

    37 	virtual CMMFSwCodec& Codec();

    38 	~CMMFPcm16ToMulawHwDevice();

    39 private:

    40 	void ConstructL();

    41 	};

    43 /*

    44 *

    45 * class CMMFPcm16ToALawCodec coverts PCM16 to MuLaw

    46 *

    47 */

    48 class CMMFPcm16ToMuLawCodec : public CMMFSwCodec

    49 	{

    50 public:

    51 	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSource, CMMFBuffer& aDest);

    52 	virtual TUint SourceBufferSize() {return KPCM16ToMuLawSrcBufferSize;};

    53 	virtual TUint SinkBufferSize() {return KPCM16ToMuLawSinkBufferSize;};

    54 private:

    55 	TBool CheckPreconditions( const CMMFDataBuffer* aSrcBuffer, CMMFDataBuffer* aDestBuffer );

    56 private:

    57 	TMMFAudioSPcm16ToMuLawCodec  iPcm16ToMuLaw;

    58 	};

    60 #endif  // __MMF_PCM16_TO_MULAW_HW_DEVICE_H__

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--