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/*
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* Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#ifndef __MMF_TMMFAUDIO_PCM16_TO_IMAADPCM_CODEC_H__
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#define __MMF_TMMFAUDIO_PCM16_TO_IMAASPCM_CODEC_H__
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#include <e32std.h>
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#include "MMFAudioCodecBase.h"
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#include "MMFImaAudioCodecState.h"
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/**
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*
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* TMMFAudioPcm16ToImaAdpcmCodec
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*
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*/
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const TInt KImaAdpcmCodecIndexTableSize = 16;
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const TInt KImaAdpcmCodecStepTableSize = 89;
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/*
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*
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* class TMMFAudioPcm16ToImaAdpcmCodec
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*
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*/
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class TMMFAudioPcm16ToImaAdpcmCodec : public TMMFAudioCodecBase
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{
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public:
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inline TMMFAudioPcm16ToImaAdpcmCodec();
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IMPORT_C virtual void Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples);
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IMPORT_C void SetState(const TMMFImaAdpcmCodecState& aState);
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IMPORT_C const TMMFImaAdpcmCodecState& GetState();
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private:
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TMMFImaAdpcmCodecState iState; //supports mono only
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private:
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static const TInt KIndexTable[KImaAdpcmCodecIndexTableSize];
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static const TInt KStepSizeTable[KImaAdpcmCodecStepTableSize];
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TBool iBufferStep;
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TInt iBuffer;
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};
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inline TMMFAudioPcm16ToImaAdpcmCodec::TMMFAudioPcm16ToImaAdpcmCodec() : iBufferStep(ETrue), iBuffer(0) {}
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#endif //__MMF_TMMFAUDIO_PCM16_TO_IMAADPCM_CODEC_H__
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