--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/devsoundrefplugin/src/plugin/audio/Gsm610/GSM610.H	Fri Oct 08 19:40:43 2010 +0100
@@ -0,0 +1,182 @@
+// Copyright (c) 2002-2010 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef __GSM610_H__
+#define __GSM610_H__
+
+#include <mmf/server/mmfswcodecwrapper.h>
+
+// Standard EPOC32 includes required by this header file
+#include <e32base.h>
+#include <mmf/server/mmfdatabuffer.h>
+#include <e32std.h>
+
+
+#ifdef EABI  
+const TUint KNumFramesInABuffer  = 50;
+#else
+const TUint KNumFramesInABuffer  = 6;	
+#endif	
+const TInt  KGsmFrameSize = 65;
+const TUint	KGsmEncodedFrameSize = KNumFramesInABuffer * KGsmFrameSize ;   //50 * 65 encoded frames
+const TUint	KPcmEncodedFrameSize = KNumFramesInABuffer * 320;  // 50 times 160*2
+const TInt  KPcmDataForGsmFrame = 640;
+const TUint	KPcmInputFrameSize   = KPcmEncodedFrameSize*2;	// cache 2 frames
+
+/**
+*
+*class CMmfGsmToPcm16HwDevice 
+*
+*/
+class CMmfGsm610ToPcm16HwDevice : public CMMFSwCodecWrapper
+	{	
+public:
+	static  CMmfGsm610ToPcm16HwDevice* NewL();
+	virtual CMMFSwCodec& Codec();
+	~CMmfGsm610ToPcm16HwDevice(); 
+private:
+	void ConstructL();
+	};
+
+/**
+*
+* CMmfPcmHwDevicePcm16ToGsm610 
+*
+*/	  
+class CMmfPcm16ToGsm610HwDevice : public CMMFSwCodecWrapper
+	{	
+public:
+	static  CMmfPcm16ToGsm610HwDevice* NewL();
+	virtual CMMFSwCodec& Codec();
+	~CMmfPcm16ToGsm610HwDevice(); 
+private:
+	void ConstructL();
+	};
+
+/**
+*
+* class CMMFGsm610ToPcm16Codec coverts Gsm610 to PCM16
+*  
+*/
+class MGSM610FR_Decoder;
+
+class CMMFGsm610ToPcm16Codec : public CMMFSwCodec
+	{
+public:
+	CMMFGsm610ToPcm16Codec();
+	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDest);
+	virtual TUint SourceBufferSize() {return KGsmEncodedFrameSize;};
+	virtual TUint SinkBufferSize() {return KPcmInputFrameSize;};
+	static  CMMFGsm610ToPcm16Codec* NewL();
+	void ConstructL();
+	~CMMFGsm610ToPcm16Codec();
+private:
+	TBool CheckInputBuffers( CMMFDataBuffer& aSrc, CMMFDataBuffer& aDest );
+	TInt  NumBuffersToProcess( const CMMFDataBuffer& aSrc );
+	TBool ProcessPostCondition( const CMMFSwCodec::TCodecProcessResult& result );
+	// do not provide an implmentation for these two methods
+	const CMMFGsm610ToPcm16Codec& operator=( const CMMFGsm610ToPcm16Codec& );
+	CMMFGsm610ToPcm16Codec( const CMMFGsm610ToPcm16Codec& );
+private:
+	MGSM610FR_Decoder* iGsmDecoder;
+	};
+
+/**
+*
+* class CMMFPcm16ToGsm610Codec coverts PCM16 to GSM610
+*  
+*/  
+class MGSM610FR_Encoder;
+
+class CMMFPcm16ToGsm610Codec : public CMMFSwCodec
+	{
+public:
+	CMMFPcm16ToGsm610Codec();
+	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDest);
+	virtual TUint SourceBufferSize() {return KPcmInputFrameSize;};
+	virtual TUint SinkBufferSize() {return  KGsmEncodedFrameSize;};	
+	static  CMMFPcm16ToGsm610Codec* NewL();
+	~CMMFPcm16ToGsm610Codec();
+	void ConstructL();
+private:
+    TBool CheckInputBuffers( CMMFDataBuffer& aSrc, CMMFDataBuffer& aDest );
+	TInt NumBuffersToProcess( const CMMFDataBuffer& aSrc );
+	inline TBool ProcessPostCondition( const CMMFSwCodec::TCodecProcessResult& result );
+
+	// do not supply implementations
+	const CMMFPcm16ToGsm610Codec& operator=( const CMMFPcm16ToGsm610Codec& );
+	CMMFPcm16ToGsm610Codec( const CMMFPcm16ToGsm610Codec &);
+private:
+	MGSM610FR_Encoder* iGsmEncoder;
+  };
+
+/**
+*
+* class TMmfAudioAudioCodecPanics provides a name space for audio codec
+* panics
+*
+**/
+class TMmfGsmCodecPanicsNameSpace
+	{
+public:
+	/*
+	A list of panic codes for Codecs
+	@internalTechnology
+	EBadArgument indicates a bad argument
+	EBadState indicates a state viaolation
+	EBadInvariant indicates an invariant violation
+	EPostConditionViolation indicates a post condition violation
+		*/
+	enum TMmfGsmCodecPanics
+		{
+		EBadArgument,
+		EBadState,
+		EBadInvariant,
+		EBadReset,
+		EPostConditionViolation
+		};
+public:
+	inline static void Panic(const TMmfGsmCodecPanicsNameSpace::TMmfGsmCodecPanics aPanic);		
+	};
+
+/**
+*
+* Panic
+* @argument aPanic is the panic code for the codec
+*
+*/
+inline void TMmfGsmCodecPanicsNameSpace::Panic(const TMmfGsmCodecPanicsNameSpace::TMmfGsmCodecPanics aPanic)
+	{
+	_LIT(KGsmCodecPanicCategory, "GsmCodec");
+	User::Panic(KGsmCodecPanicCategory, aPanic);
+	}
+
+/**
+*
+* ProcessPostCondition
+* @param aResult
+* @result TBool Etrue if the post condition is satisfied
+*
+**/
+inline TBool CMMFPcm16ToGsm610Codec::ProcessPostCondition( const CMMFSwCodec::TCodecProcessResult& aResult )
+	{
+     TBool status = ETrue;
+	 if( (aResult.iSrcBytesProcessed / KPcmDataForGsmFrame ) != (aResult.iDstBytesAdded / KGsmFrameSize  ) )
+		 {
+		 status = EFalse;
+		 }
+	 return status;
+	}
+#endif  //__GSM610_H__