1 /*

     2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:      Header file of CUpnpDlnaProfiler class. CUpnpDlnaProfiler is 

    15 *                a class used for resolving a DLNA profile of a given file.

    16 *

    17 */

    18 

    19 

    20 

    21 

    22 

    23 

    24 #ifndef C_UPNPDLNAPROFILER_H

    25 #define C_UPNPDLNAPROFILER_H

    26 

    27 // system includes

    28 #include <e32base.h>

    29 

    30 // user includes

    31 // NONE

    32 

    33 // forward declarations

    34 class MUpnpProfiler;

    35 class RFile;

    36 class CDesC16ArrayFlat;

    37 class CUpnpResParameters;

    38 

    39 // data types

    40 // NONE

    41 

    42 // constants

    43 const TInt KMimeStartLength = 5;

    44 _LIT8( KAudio, "audio" );

    45 _LIT8( KImage, "image" );

    46 _LIT8( KVideo, "video" );

    47 

    48 /**

    49  *  CUpnpDlnaProfiler is a class for resolving DLNA profile for a given file.

    50  *

    51  *  CUpnpDlnaProfiler class can be used to resolve a DLNA profile for a media 

    52  *  file (image, AV, video). User of this class can also query for a list of 

    53  *  currently supported DLNA profiles.

    54  *

    55  *  @lib dlnaprofiler.lib

    56  *  @since S60 v3.1

    57  */

    58 class CUpnpDlnaProfiler: public CBase

    59     {

    60 public:

    61 

    62     IMPORT_C static CUpnpDlnaProfiler* NewL();

    63 

    64     IMPORT_C static CUpnpDlnaProfiler* NewLC();

    65 

    66     virtual ~CUpnpDlnaProfiler();

    67 

    68     /**

    69      * SupportedProfilesL returns DLNA profiles that are currently supported.

    70      *

    71      * @since S60 v3.1

    72      * @param aProfiles Descriptor array where supported DLNA profiles are 

    73      *                  added.

    74      * @return TInt Error code, KErrNone if successfull.

    75      */

    76     IMPORT_C TInt SupportedProfilesL( CDesC16ArrayFlat* aProfiles ) const;

    77 

    78     /**

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

    80      *

    81      * @since S60 v3.1

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

    83      *        Filename must contain full path (drive+path+filename).

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

    85      *         NULL if could not be resolved

    86      */

    87     IMPORT_C HBufC* ProfileForFileL( const TDesC& aFilename );

    88     

    89     /**

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

    91      * Takes RFile and CUpnpResParameters parameters in order to minimize 

    92      * the amount of file opening.

    93      * @since S60 v3.1

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

    95      *        Filename must contain full path (drive+path+filename).

    96      * @param aFile Handle to opened file specified by aFilename.

    97      * @param aParameters Res parameters that are already known.

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

    99      *         NULL if could not be resolved

   100      */

   101     IMPORT_C HBufC* ProfileForFileL( const TDesC& aFilename, 

   102                                      RFile& aFile,

   103                                      CUpnpResParameters& aParameters );

   104     

   105 private:

   106 

   107     CUpnpDlnaProfiler();

   108 

   109     void ConstructL();

   110 

   111     /**

   112      * DlnaProfileFromSolversL checks the mime type given as parameter and

   113      * forwards the recognition task to solver plugins corresponding the

   114      * mimetype.

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

   116      *        Filename must contain full path (drive+path+filename).

   117      * @param aMimeType Mime type of file specified by aFilename.

   118      * @param aFile Handle to opened file specified by aFilename.

   119      * @return pointer to descriptor containing resolved DLNA profile

   120      * @since S60 v3.1

   121      */

   122     HBufC* DlnaProfileFromSolversL( const TDesC& aFilename, 

   123                                     const TDesC8& aMimetype, 

   124                                     RFile& aFile );

   125 

   126 private: // data

   127 

   128     /**

   129      * iAudioSolvers is a list of audio solver plugins. Base solver plugin is 

   130      * the first one on the list and the rest are product specific solvers.

   131      * These are used for resolving a DLNA profile of an audio file.

   132      */

   133     RPointerArray<MUpnpProfiler> iAudioSolvers; // elements owned

   134 

   135     /**

   136      * iAvSolvers is a list of AV solver plugins. Base solver plugin is 

   137      * the first one on the list and the rest are product specific solvers.

   138      * These are used for resolving a DLNA profile of an AV (video) file.

   139      */

   140     RPointerArray<MUpnpProfiler> iAvSolvers; // elements owned

   141     

   142     /**

   143      * iImageSolvers is a list of image solver plugins. Base solver plugin is 

   144      * the first one on the list and the rest are product specific solvers.

   145      * These are used for resolving a DLNA profile of an image file.

   146      */

   147     RPointerArray<MUpnpProfiler> iImageSolvers; // elements owned

   148 

   149     };

   150 

   151 

   152 #endif // C_UPNPDLNAPROFILER_H