--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmhais/refacladapt/src/audiostream/audiostream.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,165 @@
+/*
+* Copyright (c) 2007 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 AUDIOSTREAM_H
+#define AUDIOSTREAM_H
+
+#include <e32base.h>
+#include <f32file.h>
+#include <a3f/a3f_trace_utils.h>
+#include <a3f/a3fbase.h>
+#include "audiostreamadaptation.h"
+#include "maudiocodecadaptationobserver.h"
+#include "mconfigurationhelper.h"
+#include "mstreambuffercontrol.h"
+
+class CAudioCodec;
+class CAudioStream;
+class CAudioDeviceSource;
+class CAudioDeviceSink;
+class CBufferSink;
+class CBufferSource;
+class CAudioGainControl;
+class CFourCCConvertor;
+class MAudioStreamAdaptationObserver;
+class MInputPort;
+class MOutputPort;
+class MAudioCodecObserver;
+
+
+#include "mlogicalchain.h"
+
+class CLogicalAudioStream;
+
+/////
+ // This is the implementation of audio stream adaptation.
+ ///
+
+class CAudioStream : 	public CAudioStreamAdaptation,
+						public MAudioCodecAdaptationObserver,
+						public MConfigurationHelper, 
+						public MStreamBufferControl, 
+						public MFlushHandlerObserver
+	{
+public:
+
+	/////
+	// Create a new instance.
+	//
+	// @param aStream the stream implementation. Ownership of the pointer is transferred to the create CAudioStream object instance.
+	// @return CAudioStreamComponent* a pointer to the created instance.
+	///
+	static CAudioStream* NewL();
+
+	/////
+	// Destructor.
+	//
+	// Deletes all objects and releases all resource owned by this instance.
+	///
+	virtual ~CAudioStream();
+
+	// From CAudioStreamAdaptation
+	TInt RegisterAudioStreamObserver(MAudioStreamAdaptationObserver& aObserver);
+	void UnregisterAudioStreamObserver(MAudioStreamAdaptationObserver& aObserver);
+	void UnregisterAllAudioStreamObserver();
+	void SetFourCC(const CFourCCConvertor& aFourCCConvertor);
+
+	TInt Message(MLogicalChain& aCurrentChain, MLogicalChain& aDesiredChain, MAudioContext& aContext, TInt aFlags);
+
+	// from class MAudioCodecAdaptationObserver
+	void AllBuffersProcessed();
+	void ProcessingUnitError(TInt aError);
+	TInt RegisterAudioCodecObserver(MAudioCodecObserver& aObserver);
+	void UnregisterAudioCodecObserver(MAudioCodecObserver& aObserver);
+	void GetSupportedAModesComplete(TInt aError);
+	void GetSupportedARatesComplete(TInt aError);
+
+	// from base clase MStreamBufferControl
+	TInt FlushBuffers();
+
+	// from class MFlushHandlerObserver
+	void FlushComplete(TInt aError);
+protected:
+	// from base clase MConfigurationhelper
+	TInt GetSupportedModes(RArray<TUid>& aSupportedModes);
+	TInt GetSupportedSampleRates(RArray<TInt>& aSupportedRates);
+
+private:
+	TInt CreateDataPath();
+
+	TInt DemolishDataPath();
+
+	TInt ChangeState(TAudioState aPreviousState, TAudioState aTargetState);
+
+	TAny* GetComponent(TUid aType);
+
+	TInt CreatePhysicalComponents(MLogicalChain& aDesiredChain);
+
+	void DeletePhysicalComponents();
+
+	void ConstructL();
+
+	CAudioStream();
+
+private:
+	// Flags
+	TBool				iIsCodecConfig;
+
+	// Components
+	MLogicalChain*		iDesiredChain;
+
+	MLogicalChain*		iCurrentChain;
+
+	MAudioContext* 		iAudioContext;
+
+	CAudioCodec*		iCodec;
+
+	CBufferSource*		iBufferSource;
+
+	CBufferSink*		iBufferSink;
+
+	CAudioDeviceSource*	iDeviceSource;
+
+	CAudioDeviceSink*	iDeviceSink;
+
+	CAudioGainControl*	iGainControl;
+
+	// Not owned
+	CFourCCConvertor*	iFourCCConvertor;
+
+	TInt				iSampleRateConfig;
+
+	TUid				iModeConfig;
+
+	TAudioState			iCurrentStreamState;
+
+	TAudioState			iDesiredStreamState;
+
+	// Observers
+	RPointerArray<MAudioStreamAdaptationObserver> iAudioStreamObservers;
+
+	RPointerArray<MAudioCodecObserver>	iAudioCodecObservers;
+
+	MOutputPort*		iOutputport;	// remove ports when changing to Uninitialized
+
+	MInputPort*			iInputport;
+
+	TTimeIntervalMicroSeconds iTimeProcessed;
+	};
+
+#endif // AUDIOSTREAM_H__