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