--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmhais/a3facl/src/shared/audiostreammanager.h	Fri Oct 08 19:40:43 2010 +0100
@@ -0,0 +1,138 @@
+/*
+* Copyright (c) 2004-2009 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 AUDIOSTREAMMANAGER_H
+#define AUDIOSTREAMMANAGER_H
+
+#include <e32base.h>
+#include <ecom/ecom.h>
+#include <a3f/a3f_trace_utils.h>
+#include <a3f/a3fbase.h>
+#include <a3f/maudiostream.h>
+
+/**
+	A generic AudioComponent base class implementation.
+	@see MAudioProcessingUnit
+*/
+NONSHARABLE_CLASS(CAudioStreamManager) :	public CBase,
+											public MAudioStream
+	{
+public:
+	static CAudioStreamManager* NewL(TUid aImplementationUid);
+	/**
+		Destructor.
+		Releases all resources and deletes all objects owned by this instance.
+	*/
+	virtual ~CAudioStreamManager();
+
+	//From MAudioStream
+	virtual TInt RegisterAudioStreamObserver(MAudioStreamObserver& aObserver);
+	virtual void UnregisterAudioStreamObserver(MAudioStreamObserver& aObserver);
+	virtual TInt SetAudioType(const TAudioTypeSettings& aAudioTypeSettings);
+	virtual void GetAudioType(TAudioTypeSettings& aAudioTypeSettings) const;
+	virtual TAudioStreamId InstanceId() const;
+	CAudioStreamManager();
+
+protected: // data
+	TAudioStreamId iAudioStreamId;
+	TAudioTypeSettings  iAudioTypeSettings;
+	RPointerArray<MAudioStreamObserver> iAudioStreamObserver;
+
+private:
+	TUid iDtor_ID_Key;
+
+	};
+
+
+// Interface's (abstract base class's) destructor
+inline CAudioStreamManager::~CAudioStreamManager()
+	{
+	iAudioStreamObserver.Close();
+	REComSession::DestroyedImplementation(iDtor_ID_Key);
+	}
+
+// Interface's (abstract base class's) static factory method implementation.
+// Asks ECOM plugin framework to instantiate appropriate concret plugin
+// implementation.
+inline CAudioStreamManager* CAudioStreamManager::NewL(TUid aImplementationUid)
+	{
+	TAny* ptr = REComSession::CreateImplementationL( aImplementationUid , _FOFF(CAudioStreamManager, iDtor_ID_Key));
+	return static_cast<CAudioStreamManager*>(ptr);
+	}
+
+inline CAudioStreamManager::CAudioStreamManager()
+	{
+	//iAudioStreamId
+	}
+
+// ---------------------------------------------------------------------------
+// CAudioStreamManager::RegisterAudioStreamObserver
+// ---------------------------------------------------------------------------
+inline TInt CAudioStreamManager::RegisterAudioStreamObserver(MAudioStreamObserver& aObserver)
+	{
+	TInt err = iAudioStreamObserver.Find(&aObserver);
+	if(err == KErrNotFound)
+		{
+		err = iAudioStreamObserver.Append(&aObserver);
+		}
+	else
+		{
+		err = KErrAlreadyExists;
+		}
+	return err;
+	}
+
+// ---------------------------------------------------------------------------
+// CAudioStreamManager::UnregisterAudioStreamObserver
+// ---------------------------------------------------------------------------
+inline void CAudioStreamManager::UnregisterAudioStreamObserver(MAudioStreamObserver& aObserver)
+	{
+	TInt idxOrErr = iAudioStreamObserver.Find(&aObserver);
+	if( idxOrErr != KErrNotFound )
+		{
+		iAudioStreamObserver.Remove(idxOrErr);
+		}
+	}
+
+// ---------------------------------------------------------------------------
+// CAudioStreamManager::InstanceId
+// ---------------------------------------------------------------------------
+inline TAudioStreamId CAudioStreamManager::InstanceId() const
+	{
+	return iAudioStreamId;
+	}
+
+// ---------------------------------------------------------------------------
+// CAudioStreamManager::SetAudioType
+// ---------------------------------------------------------------------------
+inline TInt CAudioStreamManager::SetAudioType(const TAudioTypeSettings& aAudioTypeSettings)
+	{
+	TInt err(KErrNone);
+	iAudioTypeSettings = aAudioTypeSettings;
+	return err;
+	}
+
+// ---------------------------------------------------------------------------
+// CAudioStreamManager::GetAudioType
+// ---------------------------------------------------------------------------
+inline void CAudioStreamManager::GetAudioType(TAudioTypeSettings& aAudioTypeSettings) const
+	{
+	aAudioTypeSettings = iAudioTypeSettings;
+	}
+#endif // CAUDIOSTREAMFACTORY_H