sl@0: // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: 
sl@0: #ifndef __MMF_CODEC_BASE_DEFINITIONS_H__
sl@0: #define __MMF_CODEC_BASE_DEFINITIONS_H__
sl@0: 
sl@0: #include <mmf/server/mmfcodec.h>
sl@0: #include <mmf/server/mmfdatabuffer.h>
sl@0: #include <e32std.h>
sl@0: // IMA ADPCM Codecs
sl@0: 
sl@0: // Internal to Symbian
sl@0: class TMMFImaAdpcmCodecStateOld
sl@0: 	{
sl@0: public:
sl@0: 	inline TMMFImaAdpcmCodecStateOld();
sl@0: 	inline TMMFImaAdpcmCodecStateOld(TInt16 aPredicted, TUint8 aIndex);
sl@0: public:
sl@0: 	TInt16 iPredicted; // Previous output value
sl@0: 	TUint8 iIndex; // Index into stepsize table
sl@0: 	};
sl@0: 
sl@0: // Internal to Symbian
sl@0: class TMMFAudioCodecBaseOld
sl@0: 	{
sl@0: public:
sl@0: 	inline TMMFAudioCodecBaseOld();
sl@0: 	//
sl@0: 	virtual void Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples)=0;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: // Internal to Symbian
sl@0: class TMMFImaAdpcmBaseCodecOld : public TMMFAudioCodecBaseOld
sl@0: 	{
sl@0: public:
sl@0: 	inline TMMFImaAdpcmBaseCodecOld(const TInt aChannels);
sl@0: 	inline void SetState(const TMMFImaAdpcmCodecStateOld& aState);
sl@0: 	inline void SetState(const TMMFImaAdpcmCodecStateOld& aState,const TInt aChannel);
sl@0: 	inline const TMMFImaAdpcmCodecStateOld& GetState();
sl@0: 	inline const TMMFImaAdpcmCodecStateOld& GetState(const TInt aChannel);
sl@0: 	void ResetBuffer();
sl@0: 	TBool OutputStep();
sl@0: protected:
sl@0: 	TMMFImaAdpcmCodecStateOld iState[2];	//for mono & stereo
sl@0: 	static const TInt iIndexTable[16];
sl@0: 	static const TInt iStepSizeTable[89];
sl@0: 	TBool iBufferStep;
sl@0: 	TInt iBuffer;
sl@0: 	TInt iChannels;
sl@0: 	};
sl@0: 
sl@0: // Internal to Symbian
sl@0: class TMMFImaAdpcmTo16PcmCodecOld : public TMMFImaAdpcmBaseCodecOld
sl@0: 	{
sl@0: public:
sl@0: 	inline TMMFImaAdpcmTo16PcmCodecOld(const TInt aChannels);
sl@0: 	virtual void Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples);
sl@0: 	};
sl@0: 
sl@0: 
sl@0: // Internal to Symbian
sl@0: class TMMF16PcmToImaAdpcmCodecOld : public TMMFImaAdpcmBaseCodecOld
sl@0: 	{
sl@0: public:
sl@0: 	inline TMMF16PcmToImaAdpcmCodecOld(const TInt aChannels);
sl@0: 	virtual void Convert(TUint8* aSrc, TUint8* aDst, TInt aSamples);
sl@0: 	};
sl@0: 
sl@0: 
sl@0: inline TMMFAudioCodecBaseOld::TMMFAudioCodecBaseOld()
sl@0: 	{}
sl@0: 
sl@0: inline TMMFImaAdpcmBaseCodecOld::TMMFImaAdpcmBaseCodecOld(const TInt aChannels)
sl@0: : iBufferStep(ETrue), iBuffer(0), iChannels(aChannels) {}
sl@0: 
sl@0: inline TMMFImaAdpcmCodecStateOld::TMMFImaAdpcmCodecStateOld()
sl@0: 	: iPredicted(0), iIndex(0) {}
sl@0: 
sl@0: inline TMMFImaAdpcmCodecStateOld::TMMFImaAdpcmCodecStateOld(TInt16 aPredicted, TUint8 aIndex)
sl@0: 	: iPredicted(aPredicted), iIndex(aIndex) {}
sl@0: 
sl@0: inline void TMMFImaAdpcmBaseCodecOld::SetState(const TMMFImaAdpcmCodecStateOld& aState)
sl@0: 	{ iState[0] = aState; }
sl@0: 
sl@0: inline const TMMFImaAdpcmCodecStateOld& TMMFImaAdpcmBaseCodecOld::GetState()
sl@0: 	{ return iState[0]; }
sl@0: 
sl@0: inline void TMMFImaAdpcmBaseCodecOld::SetState(const TMMFImaAdpcmCodecStateOld& aState, const TInt aChannel)
sl@0: 	{ iState[aChannel] = aState; }
sl@0: 
sl@0: inline const TMMFImaAdpcmCodecStateOld& TMMFImaAdpcmBaseCodecOld::GetState(const TInt aChannel)
sl@0: 	{ return iState[aChannel]; }
sl@0: 
sl@0: inline TMMFImaAdpcmTo16PcmCodecOld::TMMFImaAdpcmTo16PcmCodecOld(const TInt aChannels)
sl@0: 	:TMMFImaAdpcmBaseCodecOld(aChannels)
sl@0: 	{}
sl@0: inline TMMF16PcmToImaAdpcmCodecOld::TMMF16PcmToImaAdpcmCodecOld(const TInt aChannels)
sl@0: 	:TMMFImaAdpcmBaseCodecOld(aChannels)
sl@0: 	{}
sl@0: 
sl@0: #endif