1 /*

     2 * Copyright (c) 2002 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:  This class is used for streaming audio.

    15 *

    16 */

    17 

    18 #ifndef CMMAAUDIOSTREAMPLAYER_H

    19 #define CMMAAUDIOSTREAMPLAYER_H

    20 

    21 //  INCLUDES

    22 #include "cmmaemcaudioplayer.h"

    23 #include "mmmastreamhandlerlistener.h"

    24 #include "cmmaemcresolver.h"

    25 #include <MetaDataUtility.h>

    26 

    27 class CMMADataSourceStream;

    28 class CMMAStreamHandler;

    29 

    30 

    31 //  CLASS DECLARATION

    32 /**

    33 *   This class is used for playing audio from stream source.

    34 */

    35 NONSHARABLE_CLASS(CMMAAudioStreamPlayer): public CMMAEMCAudioPlayer,

    36         public MMMAStreamHandlerListener

    37 {

    38 public: // Construction

    39     /**

    40      * Creates new player.

    41      */

    42     static CMMAAudioStreamPlayer* NewLC(

    43         CMMAEMCResolver* aResolver);

    44 

    45     //   Destructor

    46     ~CMMAAudioStreamPlayer();

    47 

    48 protected:

    49     //   C++ constructor

    50     CMMAAudioStreamPlayer(CMMAEMCResolver* aResolver);

    51     void ConstructL();

    52 

    53 private: // New methods

    54 

    55     /**

    56      * Starts playback and posts started event.

    57      */

    58     void PrivateStartL();

    59 

    60 public: // New methods

    61     /**

    62      * Pause playback without sending stopped event or changing state

    63      */

    64     TInt Pause();

    65 

    66 public: // from CMMAPlayer

    67     void DeallocateL();

    68     void StartL();

    69     void PrefetchL();

    70     CMMASourceStream* AddSourceStreamL(JNIEnv* aJNIEnv,

    71                                        CMMAEventSource* aEventSource,

    72                                        jobject aReader);

    73 

    74     void GetDuration(TInt64* aDuration);

    75     void StopL(TBool aPostEvent);

    76 

    77 protected: // From CMMAEMCAudioPlayer

    78     void PlayCompleteL(TInt aError);

    79 

    80 public:

    81     void AddDataSourceToStreamL();

    82     void CreateStreamL();

    83     CMetaDataUtility* MetaDataUtilityOwnership();

    84 

    85 public: // from MMMAStreamHandlerListener

    86     void PrepareComplete(TInt aError);

    87     void StartComplete(TInt aError);

    88     void HandleError(TInt aError);

    89 

    90 public: // from MControlObserver

    91     void Event(MControl* aControl,

    92                TUint aEventType,

    93                TAny* aEventObject);

    94 

    95 private: // data

    96     // owned stream handler

    97     CMMAStreamHandler* iStreamHandler;

    98 

    99     // controller's state, prime panics if called twice

   100     TBool iControllerPrimed;

   101 

   102     // created here and ownership is transferred to

   103     // CMMAAudioStreamMetaDataControl by call to

   104     // MetaDataUtilityOwnership()

   105     CMetaDataUtility* iMetaDataUtility;

   106 };

   107 

   108 #endif // CMMAAUDIOSTREAMPLAYER_H