/*

* Copyright (c) 2006-2007 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:      Base DLNA profile resolver class for av files.

*

*/

#ifndef C_UPNPAVSOLVERBASE_H

#define C_UPNPAVSOLVERBASE_H

// system includes

#include <3gplibrary/mp4lib.h>

// user includes

#include "upnpprofiler.h"

// forward declarations

class CVideoRecorderUtility;

// constants

const TInt TMP4DecoderSpecificInfoSize = 16;

// NONE

/**

 *  Av file DLNA profile base resolver class.

 *

 *  This class is the base class for resolving DLNA profile of av files.

 *  It contains methods for querying the profiles supported by this solver 

 *  and for resolving a DLNA profile of a given av file.

 *

 *

 *  @lib dlnaprofiler.lib

 *  @since S60 v3.1

 */

NONSHARABLE_CLASS( CUpnpAvSolverBase ) : public CBase,

                                         public MUpnpProfiler

    {

public:

    static CUpnpAvSolverBase* NewL();

    static CUpnpAvSolverBase* NewLC();

    virtual ~CUpnpAvSolverBase();

// from base class MUpnpProfiler

    /**

     * From MUpnpProfiler.

     * SupportedProfilesL returns DLNA profiles that are currently supported.

     *

     * @since S60 v3.1

     * @param aProfiles Descriptor array where supported DLNA profiles are 

     *                  added.

     * @return TInt Error code, KErrNone if successfull.

     */

    TInt SupportedProfilesL( CDesC16ArrayFlat* aProfiles ) const;

    /**

     * From MUpnpProfiler.

     * ProfileForFileL is for resolving a DLNA profile of a given file.

     * Besides of file name, also mime type of the file is passed as a 

     * parameter in order to avoid re-opening of the file.

     *

     * @since S60 v3.1

     * @param aFileName Filename of the file which is to be resolved.

     * @param aMimeType Mime type of the file which is to be resolved.

     * @param aFile Handle to opened file specified by aFilename

     * @return DLNA profile of the file as a HBufC*, 

     *         NULL if could not be resolved

     */

    HBufC* ProfileForFileL( const TDesC& aFilename, 

                            const TDesC8& aMimetype,

                            RFile& aFile );

private:

    CUpnpAvSolverBase();

    void ConstructL();

    /**

     * GetVideoFileInformationL

     *

     * @since S60 v3.1

     * @param aFileName Filename of the file which is to be resolved.

     * @return Error code. KErrNone if successfull.

     */

    TInt GetVideoFileInformationL( RFile& aFile );

    /**

     * A generic data container to be used in parsing different

     * MPEG4 codec headers

     */

    class TMP4DecoderSpecificInfo

        {

        public:

            TUint32 iData[TMP4DecoderSpecificInfoSize];

        };

private: // data

    // Type of video codec within the AV file

    mp4_u32 iVideoType;

    // Video resolution X size

    mp4_u32 iVideoResolutionX;

    // Video resolution Y size

    mp4_u32 iVideoResolutionY;

    mp4_double iVideoFramerate;

    // Type of audio codec within the AV file

    mp4_u32 iAudioType;

    // stream bitrate

    mp4_u32 iStreamAverageBitrate;

    // codec-specific details

    TMP4DecoderSpecificInfo iCodecInfo;

    };

#endif // C_UPNPAVSOLVERBASE_H