diff -r 000000000000 -r 40261b775718 mmlibs/mmfw/inc/mmf/server/Mmfclip.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmlibs/mmfw/inc/mmf/server/Mmfclip.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,187 @@
+// Copyright (c) 2001-2009 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:
+//
+
+#ifndef __MMFCLIP_H_
+#define __MMFCLIP_H_
+
+#include <mmf/server/mmfdatasource.h>
+#include <mmf/server/mmfdatasink.h>
+#include <mmf/server/mmfbuffer.h>
+#include <mmf/common/mmfutilities.h>
+
+/**
+@publishedAll
+@released
+
+Abstract class to represent a source or sink that contains a multimedia clip (i.e. not a stream or hardware device).
+
+Typical examples are a file or an area of memory (descriptor).
+*/
+class CMMFClip : public CBase, public MDataSource, public MDataSink
+	{
+public :
+	//asynchronous Read/WriteBufferLs
+
+	/**
+	Reads aLength number of bytes of data from the offset, aPosition into the buffer, aBuffer.
+	Intended for asynchronous usage.
+
+	This is a virtual function that each derived class must implement.
+
+	@param  aLength
+	        The number of bytes to read.
+	@param  aBuffer
+	        The buffer to read the data into.
+	@param  aPosition
+	        The offset from which to start reading.
+	@param  aConsumer
+	        The sink of tha data read from the clip. Will be informed of read if not NULL.
+	*/
+	virtual void ReadBufferL( TInt aLength, CMMFBuffer* aBuffer, TInt aPosition, MDataSink* aConsumer) = 0 ;
+
+	/**
+	Writes aLength number of bytes of data from the offset, aPosition from the buffer, aBuffer.
+	Intended for asynchronous usage.
+
+	This is a virtual function that each derived class must implement.
+
+	@param  aLength
+	        The number of bytes to write.
+	@param  aBuffer
+	        The buffer to write the data into.
+	@param  aPosition
+	        The offset from which to start writing.
+	@param  aSupplier
+	        The source of the data writen to the clip. Will be informed of write if not NULL.
+	*/
+	virtual void WriteBufferL( TInt aLength, CMMFBuffer* aBuffer, TInt aPosition, MDataSource* aSupplier) = 0 ;
+
+	/**
+	Reads the maximum number of bytes of data from the offset, aPosition into the buffer, aBuffer.
+	Intended for asynchronous usage.
+
+	This is a virtual function that each derived class must implement.
+
+	@param  aBuffer
+	        The buffer to read the data into.
+	@param  aPosition
+	        The offset from which to start reading.
+	@param  aConsumer
+	        The sink of tha data read from the clip. Will be informed of read if not NULL.
+	*/
+	virtual void ReadBufferL( CMMFBuffer* aBuffer, TInt aPosition, MDataSink* aConsumer) = 0 ;
+
+	/**
+	Writes the maximum number of bytes of data from the offset, aPosition from the buffer, aBuffer.
+	Intended for asynchronous usage.
+
+	This is a virtual function that each derived class must implement.
+
+	@param  aBuffer
+	        The buffer to write the data into.
+	@param  aPosition
+	        The offset from which to start writing.
+	@param  aSupplier
+	        The source of the data writen to the clip. Will be informed of write if not NULL.
+	*/
+	virtual void WriteBufferL( CMMFBuffer* aBuffer, TInt aPosition, MDataSource* aSupplier) = 0 ;
+
+	//synchronous Read/WriteBufferLs
+
+	/**
+	Reads the maximum number of bytes of data from the offset, aPosition into the buffer, aBuffer.
+	Intended for synchronous usage.
+
+	This is a virtual function that each derived class must implement.
+
+	@param  aBuffer
+	        The buffer to read the data into.
+	@param  aPosition
+	        The offset from which to start reading.
+	*/
+	virtual void ReadBufferL( CMMFBuffer* aBuffer, TInt aPosition) = 0 ;
+
+	/**
+	Writes the maximum number of bytes of data from the offset, aPosition from the buffer, aBuffer.
+	Intended for synchronous usage.
+
+	This is a virtual function that each derived class must implement.
+
+	@param  aBuffer
+	        The buffer to write the data into.
+	@param  aPosition
+	        The offset from which to start writing.
+	*/
+	virtual void WriteBufferL( CMMFBuffer* aBuffer, TInt aPosition) = 0 ;
+
+	/**
+	Returns the amount of space available for the clip.
+
+	This is a virtual function that each derived class must implement.
+
+	@return The amount of space available.
+	*/
+	virtual TInt64 BytesFree() = 0 ;
+
+	/**
+	Returns the size of the clip in bytes.
+
+	This is a virtual function that each derived class must implement.
+
+	@return	The size of the clip.
+	*/
+	virtual TInt Size() = 0 ;
+
+	/**
+	Deletes the clip. 
+
+	This should be overriden in the derived	classes, the default version returns KErrNotSupported.
+
+	@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+	        another of the system-wide error codes.
+	*/
+	virtual TInt Delete()	{return KErrNotSupported;}
+
+	/**
+	Sets the size of the clip. This should be overriden in the derived
+	classes, the default version returns KErrNotSupported.
+
+	@param  aSize
+	        The size of the clip.
+
+	@return An error code indicating if the function call was successful. KErrNone on success, otherwise
+	        another of the system-wide error codes.
+	*/
+	inline virtual TInt SetSize(TInt aSize);
+
+protected :
+	/**
+	Protected constructor.
+
+	@param  aSourceType
+	        The source type.
+	@param  aSinkType
+	        The sink type.
+	*/
+	CMMFClip( TUid aSourceType, TUid aSinkType ) : MDataSource( aSourceType ), MDataSink( aSinkType ) {}
+	} ;
+
+inline TInt CMMFClip::SetSize(TInt /*aSize*/)
+{
+	return KErrNotSupported;
+}
+
+
+#endif