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 "CMMAAudioPlayer.h"

    23 #include "MMMAStreamHandlerListener.h"

    24 

    25 class CMMADataSourceStream;

    26 class CMMAStreamHandler;

    27 

    28 

    29 //  CLASS DECLARATION

    30 /**

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

    32 */

    33 NONSHARABLE_CLASS(CMMAAudioStreamPlayer): public CMMAAudioPlayer,

    34         public MMMAStreamHandlerListener

    35 {

    36 public: // Construction

    37     /**

    38      * Creates new player.

    39      */

    40     static CMMAAudioStreamPlayer* NewLC(

    41         CMMAMMFResolver* aResolver);

    42 

    43     //   Destructor

    44     ~CMMAAudioStreamPlayer();

    45 

    46 protected:

    47     //   C++ constructor

    48     CMMAAudioStreamPlayer(CMMAMMFResolver* aResolver);

    49     void ConstructL();

    50 

    51 private: // New methods

    52     /**

    53      * Loops through iControllerInfos and tries to open those

    54      * @param aSourceUid Data source uid

    55      * @param aSourceData Data for source

    56      * @param aSinkUid Data sink uid

    57      * @param aSinkData Data for sink.

    58      * @param aPrioritySettings Controller's priority.

    59      * @return KErrNone if controller was opened

    60      */

    61     TInt DoOpen(TUid aSourceUid,

    62                 const TDesC8& aSourceData,

    63                 TUid aSinkUid,

    64                 const TDesC8& aSinkData,

    65                 TMMFPrioritySettings aPrioritySettings);

    66 

    67     /**

    68      * Starts playback and posts started event.

    69      */

    70     void PrivateStartL();

    71 

    72 public: // New methods

    73     /**

    74      * Pause playback without sending stopped event or changing state

    75      */

    76     TInt Pause();

    77 

    78 public: // from CMMAPlayer

    79     void StartL();

    80     void PrefetchL();

    81     CMMASourceStream* AddSourceStreamL(JNIEnv* aJNIEnv,

    82                                        CMMAEventSource* aEventSource,

    83                                        jobject aReader);

    84     void GetDuration(TInt64* aDuration);

    85     void StopL(TBool aPostEvent);

    86 

    87 protected: // From CMMAAudioPlayer

    88     void PlayCompleteL(TInt aError);

    89 

    90 public: // from MMMAStreamHandlerListener

    91     void PrepareComplete(TInt aError);

    92     void StartComplete(TInt aError);

    93     void HandleError(TInt aError);

    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 

   103 #endif // CMMAAUDIOSTREAMPLAYER_H