--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mmhais/a3facl/src/buffersource/logicalbuffersource.h Fri Oct 08 19:40:43 2010 +0100
@@ -0,0 +1,90 @@
+/*
+* 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:
+* Name : logicalbuffersource.h
+* Part of : ACL Logical Layer
+*
+*/
+
+
+
+#ifndef LOGICALBUFFERSOURCE_H
+#define LOGICALBUFFERSOURCE_H
+
+#include <e32base.h>
+#include <f32file.h>
+#include <a3f/a3f_trace_utils.h>
+#include <a3f/mbuffersource.h>
+#include <a3f/maudiodatasupplier.h>
+
+#include "audioprocessingunit.h"
+
+#include <a3f/maudioprocessingunitobserver.h>
+
+
+class MLogicalSettingObserver;
+
+/**
+
+*/
+NONSHARABLE_CLASS(CLogicalBufferSource) : public CAudioProcessingUnit,
+ public MMMFBufferSource,
+ public MMMFAudioDataSupplier
+ {
+friend class CAudioContext;
+friend class CLogicalAudioStream;
+public:
+
+ /**
+ Destructor.
+
+ Deletes all objects and releases all resource owned by this instance.
+ */
+ virtual ~CLogicalBufferSource();
+
+ // from MMMFBufferSource
+ virtual TInt SetDataSupplier(MMMFAudioDataSupplier& aSupplier);
+ virtual TInt BufferFilled(CMMFBuffer* aBuffer);
+ virtual TInt BuffersDiscarded();
+
+ // from CAudioProcessingUnit
+ virtual TBool IsTypeOf(TUid aTypeId) const;
+ virtual TAny* Interface(TUid aType);
+
+ // from MMMFDataSupplier
+ virtual void BufferToBeFilled(MMMFBufferSource* aSource, CMMFBuffer* aBuffer);
+ virtual void DiscardBuffers(MMMFBufferSource* aSource);
+
+ /**
+ Create a new instance.
+
+ @return CBufferSource* a pointer to the created instance.
+ */
+ static CLogicalBufferSource* NewL(TAny* aParameters);
+
+private:
+ void ConstructL();
+
+ CLogicalBufferSource(TAny* aParameters);
+
+protected:
+ // The adaptation buffer source
+ MMMFBufferSource* iAdaptationBufferSource;
+
+private:
+ // The client which provides data
+ MMMFAudioDataSupplier* iSupplier;
+ };
+
+#endif // LOGICALBUFFERSOURCE_H