// 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