diff -r 000000000000 -r 40261b775718 mmhais/a3facl/src/buffersink/logicalbuffersink.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmhais/a3facl/src/buffersink/logicalbuffersink.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,95 @@
+/*
+* 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        : logicalbuffersink.h
+* Part of     : ACL Logical Layer
+*
+*/
+
+
+
+#ifndef LOGICALBUFFERSINK_H
+#define LOGICALBUFFERSINK_H
+
+#include <e32base.h>
+#include <f32file.h>
+#include <a3f/a3f_trace_utils.h>
+#include <a3f/mbuffersink.h>
+#include <a3f/maudiodataconsumer.h>
+
+#include "audioprocessingunit.h"
+
+#include <a3f/maudioprocessingunitobserver.h>
+
+
+class MLogicalSettingObserver;
+
+/**
+This is the implementation of CAudioSink API.
+
+@see CAudioComponent
+*/
+NONSHARABLE_CLASS(CLogicalBufferSink) : public CAudioProcessingUnit,
+										public MMMFBufferSink,
+										public MMMFAudioDataConsumer
+	{
+friend class CAudioContext;
+friend class CLogicalAudioStream;
+
+public:
+
+	/**
+	Destructor.
+
+	Deletes all objects and releases all resource owned by this instance.
+	*/
+	virtual ~CLogicalBufferSink();
+
+	// from class MBufferSink
+	TInt SetDataConsumer(MMMFAudioDataConsumer& aConsumer);
+	TInt BufferEmptied(CMMFBuffer* aBuffer);
+	TInt BuffersDiscarded();
+
+	// from class CAudioProcessingUnit
+	virtual TBool IsTypeOf(TUid aTypeId) const;
+	virtual TAny* Interface(TUid aType);
+
+	// from MMMFAudioDataConsumer
+	void BufferToBeEmptied(MMMFBufferSink* aSink, CMMFBuffer* aBuffer);
+	void DiscardBuffers(MMMFBufferSink* aSink);
+	/**
+	Create a new instance.
+
+	@return CBufferSink* a pointer to the created instance.
+	*/
+	static CLogicalBufferSink* NewL(TAny* aParameters);
+
+private:
+
+	void ConstructL();
+
+	CLogicalBufferSink(TAny* aParameters);
+
+protected:
+	// The adaptation buffer sink
+	MMMFBufferSink* iAdaptationBufferSink;
+
+private:
+	// The client which requests data
+	MMMFAudioDataConsumer *iConsumer;
+
+	CMMFBuffer* iBuffer;
+	};
+
+#endif // LOGICALBUFFERSINK_H