1 // Copyright (c) 1997-2009 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 //

    15 

    16 

    17 #ifndef MMFIMAADPCMTOPCM16CODEC_H

    18 #define MMFIMAADPCMTOPCM16CODEC_H

    19 

    20 #include "MMFCodecBaseDefinitions.h"

    21 #include "MMFAudioCodecBase.h"

    22 #include <mmf/server/devsoundstandardcustominterfaces.h>

    23 

    24 const TUint KMaxImaAdpcmBlockAlign = 2048;

    25 

    26 //mono so iImaAdpcmTo16Pcm constructed with 1 (mono)

    27 class CMMFImaAdPcmPcm16Codec : public CMMFCodec, public MMMFDevSoundCustomInterfaceFileBlockLength

    28 	{

    29 public:

    30 	static CMMFCodec* NewL(TAny* aInitParams);

    31 	virtual ~CMMFImaAdPcmPcm16Codec();

    32 	TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDst);

    33 	void ConfigureL(TUid aConfigType, const TDesC8& aConfigData);

    34 	// from MMMFDevSoundCustomInterfaceFileBlockLength

    35 	void SetFileBlockLength(TUint aBlockAlign);

    36 protected:

    37 	virtual TInt Extension_(TUint aExtensionId, TAny*& aExtPtr, TAny*);	

    38 private:

    39 	CMMFImaAdPcmPcm16Codec();

    40 	void ConstructL(TAny* aInitParams);

    41 	virtual void ResetL();

    42 	

    43 private:

    44 	//owned by the Datapath

    45 	const CMMFDataBuffer* iSrc;

    46 	CMMFDataBuffer* iDst;

    47 

    48 	TUint iTempSrcBufferCount;

    49 	TUint8* iTempSrcBufferPtr;

    50 	TUint8 iTempSrcBuffer[KMaxImaAdpcmBlockAlign];

    51 	TMMFImaAdpcmTo16PcmCodecOld iImaAdpcmTo16Pcm ;

    52 	TUint iLastFrameNumber;

    53 	

    54 	// allow configuring sample rate

    55 	TUint iChannels;

    56 	TUint iSamplesRate;

    57 	TUint iSamplesPerBlock;

    58 	TUint iBlockAlign;

    59 	};

    60 

    61 

    62 #endif