/*

* Copyright (c) 2006 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:  This class is responsible for getting MMF file information

*

*/

#ifndef CMPXFILEINFOUTILITY_H

#define CMPXFILEINFOUTILITY_H

// INCLUDES

#include <e32base.h>

#include <e32hashtab.h>

#include <mmf/common/mmfcontroller.h>

#include <mmf/common/mmfcontrollerframework.h>

// CLASS DECLARATION

/**

*  File info utility class

*/

class CMPXFileInfoUtility : public CBase

    {

    public: // Constructors and destructor

        /**

        * Two-phased constructor: Normal C++ constructor & ConstructL.

        */

        static CMPXFileInfoUtility* NewL();

        /**

        * Two-phased constructor: Normal C++ constructor & ConstructL.

        */

        static CMPXFileInfoUtility* NewLC();

        /**

        * Destructor

        * Destroy the object and release all memory objects

        */

        virtual ~CMPXFileInfoUtility();

    public: // New functions

        /**

        * Open a file using audio controller.

        * The file is opened based on MIME type given mime type.

        * If MIME type is not provided, the file is opened by file handle

        * @param aFile, file handle

        * @param aMimeType, mime type of the file, by default it is KNullDesC

        */

        void OpenFileL(RFile& aFile,

                                const TDesC& aMimeType = KNullDesC);

        /**

        * Reset file info utility

        */

        void Reset();

        /**

        * Get the duration of a song

        * @return duration with micro seconds

        */

        TTimeIntervalMicroSeconds Duration();

        /**

        * Get the bit rate of a song

        * @return the bit rate of the song

        */

        TUint BitRate();

        /**

        * Get the sample rate of a song

        * @return the sample rate of the song

        */

        TUint SampleRate();

    private:

        /**

        * C++ default constructor

        */

        CMPXFileInfoUtility();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        /**

        * Find a controller

        * The controller is searched by MIME type. If MIME type is empty,

        * the controller is searched by file name

        * @param aFileName file name

        * @param aMimeType, mime type of the file

        * @param aUid uid of the controller

        */

        void FindController( const TDesC& aFileName,

                             const TDesC& aMimeType,

                             TUid& aUid);

        /**

        * Open a controller

        * @param aUid uid of the controller

        */

        void OpenControllerL(const TUid& aUid);

        /**

        * Create an array to hold all the controller plugins that support audio

        */

        void CreateAudioFormatsArrayL();

    private:         // Member variables

        // Controller for music file

        RPtrHashMap<TUint32, RMMFController> iMMFControllers;

        RMMFController *iController;

        TUint32 iCurrentControllerUid;

        TUint32 iUid1;

        TUint32 iUid2;

        RMMFControllerImplInfoArray iAudioControllers;

    };

#endif // CMPXFILEINFOUTILITY_H

// End of File