// 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