--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devsound/a3facf/inc/mbuffersink.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,74 @@
+// 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 MBUFFERSINK_H
+#define MBUFFERSINK_H
+
+#include <a3f/a3fbase.h>
+#include <a3f/maudiodataconsumer.h>
+
+class CMMFBuffer;
+class MMMFAudioDataConsumer;
+
+/**
+ * Buffer sink is used for receiving the audio data in buffers outside the audio process.
+ *
+ * The type of the actual 'physical' sink can be for example a file or a socket or the
+ * data could also be simple analysed and then discarded. Nevertheless, the client
+ * (the MAudioDataConsumer) is responsible for writing the data to its final sink
+ * while reading it from the buffers received as a parameter with the callbacks in
+ * the MAudioDataConsumer interface.
+ */
+class MMMFBufferSink
+	{
+public:
+	/**
+	 * Initializes the sink for using aConsumer as a data consumer.
+	 * 
+	 * The sink must be initialized before it is attahced to a stream.
+	 *
+	 * @param aConsumer a reference to the data consumer which will be responsible
+	 * for reading the audio data from the buffers provided by this sink.
+	 * @return an error code. KErrNone if successful, otherwise one of the system wide error codes.
+	 */
+	virtual TInt SetDataConsumer(MMMFAudioDataConsumer& aConsumer)=0;
+
+	/**
+	 * Indicates that the audio data has been read from a buffer received from this buffer sink.
+	 *
+	 * @param aBuffer the buffer that has been consumed.
+	 * @return an error code. KErrNone if successful, otherwise one of the system wide error codes.
+	 */
+	virtual TInt BufferEmptied(CMMFBuffer* aBuffer)=0;
+
+	/** 
+	 * Called by the client to acknowledgement the processing of DiscardBuffers() to indicate that 
+	 * control of any buffer previously passed to the client.
+	 * (by BufferToBeEmptied()) returns to the framework proper.
+	 * 
+	 * @return an error code. KErrNone on success, otherwise one of the system wide error codes.
+	 */
+	virtual TInt BuffersDiscarded()=0;
+	};
+
+#endif // MBUFFERSINK_H