--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/a3facf/inc/maudiodataconsumer.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,59 @@
+/*
+* Copyright (c) 2006-2009 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:
+*
+*/
+
+
+
+
+/**
+ @file
+ @publishedPartner 
+ @released
+*/
+
+#ifndef MAUDIODATACONSUMER_H
+#define MAUDIODATACONSUMER_H
+
+#include <a3f/a3fbase.h>
+
+class MMMFBufferSink;
+class CMMFBuffer;
+
+/**
+ * An interface to a set of callback functions that a buffer sink client must implement.
+ */
+class MMMFAudioDataConsumer
+	{
+	public:
+	/**
+	 * Provides a buffer with audio data to the client.
+	 *
+	 * After reading the data from the buffer, the client must call MBufferSink::BufferEmptied() passing the buffer as a parameter.
+	 * @param aSink a pointer to the sink providing the buffer.
+	 * @param aBuffer a pointer to the buffer to empty.
+	 */
+	virtual void BufferToBeEmptied(MMMFBufferSink* aSink, CMMFBuffer* aBuffer)=0;
+
+
+	/**
+	 * Indicates that any outstanding buffer requests are to be cancelled, so that control of those buffers returns to the framework.
+	 * The client must call MMMFBufferSink::BuffersDiscarded() to acknowledge that this has taken place.
+	 * @param aSource the source whose previous buffer requests should be ignored.
+	 */
+	virtual void DiscardBuffers(MMMFBufferSink* aSink)=0;
+	};
+
+#endif // MAUDIODATACONSUMER_H