1 /*

     2 * Copyright (c) 2006 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 of ProgDLSource.

    15 *

    16 */

    17 

    18 

    19 #ifndef __PROGDLDATASOURCE_H_

    20 #define __PROGDLDATASOURCE_H_

    21 

    22 

    23 #include <mmf/server/mmfdatasource.h> 

    24 #include <MultimediaDataSource.h> 

    25 #include <DataBufferSource.h> 

    26 

    27 class CSinkQueueItem;

    28 using multimedia::TBufferingConfig;

    29 /**

    30 @publishedAll

    31 @released

    32 

    33 Provides the filename and path of file. 

    34 

    35 Used by CProgDLMultimediaSource::ConstructL().

    36 */

    37 class TMMFFileParams

    38     {

    39     public:

    40     /**

    41     Filename and path of file. 

    42         */

    43         TFileName iPath ; // Filename and path of file.

    44     private:

    45     /**

    46     This member is internal and not intended for use.

    47         */

    48         TInt iReserved1;

    49     };

    50 

    51     /**

    52     @internalTechnology	

    53 */

    54 const TUid KFileHandleUid = {0x101FFA19};

    55 const TUid KMMFileSourceUid = {0x101F7DA9};

    56 const TUid KMMFileHandleSourceUid = {0x101F7DAA};

    57 

    58 /**

    59 @publishedAll

    60 @released

    61 

    62   Provides a pointer to the file handle 

    63   

    64     Used by CProgDLMultimediaSource::ConstructL().

    65 */

    66 class TMMFFileHandleParams

    67     {

    68     public:

    69         TMMFFileHandleParams(RFile* aFile) : iUid(KFileHandleUid), iFile(aFile) {}

    70         TMMFFileHandleParams() : iUid(KFileHandleUid) {}

    71         

    72         TUid iUid;

    73         /**

    74         Handle of file 

    75         */

    76         RFile* iFile;

    77     private:

    78     /**

    79     This member is internal and not intended for use.

    80         */

    81         TInt iReserved1;

    82     };

    83 

    84 

    85 

    86 

    87     /**

    88     @publishedAll

    89     @released

    90 */

    91 typedef TPckgBuf<TMMFFileParams>  TMMFFileConfig ;

    92 

    93 /**

    94 @publishedAll

    95 @released

    96 */

    97 typedef TPckgBuf<TMMFFileHandleParams>  TMMFFileHandleConfig ;

    98 

    99 

   100 /**

   101 @publishedAll

   102 @released

   103 

   104   This details how big the iTransferBufferCopies array of CProgDLMultimediaSource may

   105   become before we start looking to free entries.

   106 */

   107 const TInt KAcceptableTransferBufferCopiesSize = 5;

   108 

   109 /**

   110 @publishedAll

   111 @released

   112 

   113   This details how big the iTransferBufferCopies array of CProgDLMultimediaSource may

   114   become before we start looking to free entries.

   115 */

   116 const TInt KMaximumTransferBufferCopiesSize = 100;

   117 

   118 class CProgDLMultimediaSource;

   119 

   120 class CProgDLSource : public MDataSource

   121     {

   122     public:

   123         static CProgDLSource* NewL( TUid aType );

   124 		~CProgDLSource(void);        

   125         // From MDataSource begins

   126         TFourCC SourceDataTypeCode(TMediaId aMediaId) ;

   127         void FillBufferL( CMMFBuffer* aBuffer, MDataSink* aConsumer, TMediaId aMediaId ) ;

   128         void BufferEmptiedL( CMMFBuffer* aBuffer ) ;

   129         TBool CanCreateSourceBuffer() ;

   130         CMMFBuffer* CreateSourceBufferL( TMediaId aMediaId, TBool &aReference ) ;

   131         TInt SourceThreadLogon(MAsyncEventHandler& aEventHandler) ;

   132         void SourceThreadLogoff();

   133         void SourcePrimeL();

   134         void SourcePlayL();

   135         void SourceStopL();

   136         void SourceCustomCommand(TMMFMessage& aMessage);

   137         void ConstructSourceL(const TDesC8 &aInitData);

   138         TUid DataSourceType() const;

   139         TInt SetSourceDataTypeCode(TFourCC aSourceFourCC, TMediaId /*aMediaId*/ );

   140          // From MDataSource ends

   141         

   142         void SetMultimediaSource(CProgDLMultimediaSource& aMultimediaSource);

   143         TDesC8& GetInitData();

   144     private:

   145         CProgDLSource(TUid aType);

   146         

   147         void ConstructL (void);

   148     private:

   149         //Data

   150         CProgDLMultimediaSource* iMultiMediaSource; 

   151         HBufC8* iInitData;       

   152  

   153     }; 

   154     

   155 #endif