// Copyright (c) 2004-2009 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:

 // include\mmf\common\mmfutilities.inl

 // 

 //

 /**

  Constructs the class with the supplied arguments.

  This constructor is used when there are multiple streams of the same media type on the same

  MDataSource.

  @param  aMediaType

  The media type (video, audio etc.).

  @param  aStreamId

  Identifies a specific stream when there are multiple streams of the same media type on 

  the same MDataSource.

 */

 inline TMediaId::TMediaId(TUid aMediaType, TUint aStreamId) : iMediaType(aMediaType), iStreamId(aStreamId), iReserved1(0), iReserved2(0), iReserved3(0) 

 	{

 	}

 /**

 Constructs the class with the supplied argument.

 This constructor is used when there is a single stream of the same media type on the same

 MDataSource.

 @param  aMediaType

         The media type (video, audio etc.).

 */

 inline TMediaId::TMediaId(TUid aMediaType) : iMediaType(aMediaType), iStreamId(0), iReserved1(0), iReserved2(0), iReserved3(0) 

 	{

 	}

 /**

 Default constructor.

 */

 inline TMediaId::TMediaId() : iMediaType(KNullUid), iStreamId(0), iReserved1(0), iReserved2(0), iReserved3(0) 

 	{

 	}

 /**

 Unpacks the FourCC code in little-endian format into the space provided by the argument.

 The argument must be a pointer to a buffer of 4 bytes or greater.

 @param aDes

        A buffer to hold the unpacked FourCC code.

 */

 inline void TFourCC::FourCC( TPtr8* aDes ) const

 	{

 	TUint8 char1 = TUint8( iFourCC ) ;

 	TUint8 char2 = TUint8( iFourCC >> 8 ) ;

 	TUint8 char3 = TUint8( iFourCC >> 16 ) ;

 	TUint8 char4 = TUint8( iFourCC >> 24 ) ;

 	aDes->Format( _L8("%1c%1c%1c%1c"), char1, char2, char3, char4 ) ;

 	}