Symaptic: os/mm/devsound/devsoundrefplugin/src/plugin/audio/MmfALawToPcm16HwDevice.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_ALAW_TO_PCM16_HW_DEVICE_H__

    19 #define __MMF_ALAW_TO_PCM16_HW_DEVICE_H__

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

    21 #include "MMFAudioCodecBase.h"

    22 #include "MMFAudioALawToS16PcmCodec.h"

    24 const TInt KALawToCM16SrcBufferSize  = 0x1000;

    25 const TInt KALawToCM16SinkBufferSize = 0x2000;

    27 /*

    28 *

    29 * CMMFAlawToPcm16CodecHwDevice

    30 *

    31 */

    32 class CMMFAlawToPcm16CodecHwDevice : public CMMFSwCodecWrapper

    33 	{

    34 public:

    35 	static  CMMFAlawToPcm16CodecHwDevice* NewL();

    36 	virtual CMMFSwCodec& Codec();

    37 	~CMMFAlawToPcm16CodecHwDevice();

    38 private:

    39 	void ConstructL();

    40 	};

    42 /*

    43 *

    44 * class CMMFAlawToPcm16Codec coverts ALaw to PCM

    45 *

    46 */

    47 class CMMFAlawToPcm16Codec : public CMMFSwCodec

    48 	{

    49 public:

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

    51 	virtual TUint SourceBufferSize() {return KALawToCM16SrcBufferSize;};

    52 	virtual TUint SinkBufferSize() {return KALawToCM16SinkBufferSize;};

    53 private:

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

    55 	TInt AlawSampleToPcm(TUint8 aAlaw);

    56 private:

    57 	TMMFAudioALawToS16PcmCodec iAlawTo16Pcm;

    58 	};

    60 #endif //__MMF_ALAW_TO_PCM16_HW_DEVICE_H__

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