1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @publishedPartner

    19  @released

    20 */

    21 

    22 #ifndef MDFCOMMON_H

    23 #define MDFCOMMON_H

    24 

    25 /**

    26 Control flags for tunneling

    27 */

    28 enum TTunnelFlags

    29 	{

    30 	/** 

    31 	The input port receiving a buffer cannot alter its contents when tunnelled.

    32 	*/

    33 	EBufferReadOnly = 1

    34 	};

    35 

    36 /**

    37 Defines the supplier of the buffers used in a tunnel

    38 */

    39 enum TSupplierType

    40 	{

    41 	/** 

    42  	Port supplying the buffers is unspecified, or don't care 

    43  	*/

    44     EBufferSupplyUnspecified = 0,

    45 	/**

    46  	Input port supplies the buffers 

    47  	*/

    48 	EBufferSupplyInput,             

    49 	/**

    50  	Output port supplies the buffers

    51  	*/

    52 	EBufferSupplyOutput

    53 	};

    54 

    55 /**

    56 Errors used by the Codec API

    57 */

    58 enum TCodecApiErrors

    59 	{

    60 	/** 

    61  	Invalid state

    62  	*/

    63 	EInvalidState = 0,

    64 	/** 

    65  	Port already tunnelled

    66  	*/

    67 	EPortAlreadyTunnelled

    68 	};

    69 

    70 #endif // MDFCOMMON_H