--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmdevicefw/mdf/inc/codecapi/mdfcommon.h	Tue Feb 02 01:56:55 2010 +0200
@@ -0,0 +1,70 @@
+// Copyright (c) 2005-2009 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 MDFCOMMON_H
+#define MDFCOMMON_H
+
+/**
+Control flags for tunneling
+*/
+enum TTunnelFlags
+	{
+	/** 
+	The input port receiving a buffer cannot alter its contents when tunnelled.
+	*/
+	EBufferReadOnly = 1
+	};
+
+/**
+Defines the supplier of the buffers used in a tunnel
+*/
+enum TSupplierType
+	{
+	/** 
+ 	Port supplying the buffers is unspecified, or don't care 
+ 	*/
+    EBufferSupplyUnspecified = 0,
+	/**
+ 	Input port supplies the buffers 
+ 	*/
+	EBufferSupplyInput,             
+	/**
+ 	Output port supplies the buffers
+ 	*/
+	EBufferSupplyOutput
+	};
+
+/**
+Errors used by the Codec API
+*/
+enum TCodecApiErrors
+	{
+	/** 
+ 	Invalid state
+ 	*/
+	EInvalidState = 0,
+	/** 
+ 	Port already tunnelled
+ 	*/
+	EPortAlreadyTunnelled
+	};
+
+#endif // MDFCOMMON_H