1 /*

     2 * Copyright (c) 2005 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:  Definition of the S60 Audio Stream Source custom command msg cods.

    15 *

    16 */

    17 

    18 

    19 #ifndef __S60STREAMINGSOURCE_H__

    20 #define __S60STREAMINGSOURCE_H__

    21 

    22 // Standard EPOC32 includes required by this header file

    23 #include <e32base.h>

    24 #include <e32std.h>

    25 // DevSound includes

    26 //#include <d32snd.h>

    27 #include <e32hal.h>

    28 #include <e32svr.h>

    29 #include <implementationproxy.h> // ECom

    30 

    31 #include "S60StreamingSourceUIDs.hrh"

    32 

    33 // Public Media Server includes

    34 #include <mmfdatasink.h>

    35 #include <mmfdatasource.h>

    36 #include <mmfdatapath.h>

    37 #include <mmfdatasourcesink.hrh>

    38 #include <mmfaudioiointerfaceuids.hrh>

    39 

    40 #include <mmffourcc.h>

    41 

    42 // FORWARD DECLARATIONS

    43 class CDataBufferQueueItem;

    44 class CReadRequest;

    45 

    46 // CLASS DECLARATION

    47 

    48 class CS60StreamingSource : public MDataSource

    49 	{

    50 	public:

    51 		IMPORT_C static CS60StreamingSource* NewL(TUid aType);

    52 		IMPORT_C static CS60StreamingSource* NewLC(TUid aType);

    53 

    54 		virtual void ConstructSourceL(  const TDesC8& /*aInitData */);

    55 

    56 		virtual TUid DataSourceType() const;

    57 		virtual TFourCC SourceDataTypeCode(TMediaId /*aMediaId*/);

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

    59 		virtual void FillBufferL(CMMFBuffer* /*aBuffer*/, MDataSink* /*aConsumer*/,TMediaId /*aMediaId*/);

    60 		virtual void BufferEmptiedL(CMMFBuffer* /*aBuffer*/); //called by MDataSink to pass back emptied buffer to the source

    61 		virtual TBool CanCreateSourceBuffer();

    62 		virtual CMMFBuffer* CreateSourceBufferL(TMediaId /*aMediaId*/, TBool &/*aReference*/);

    63 

    64 		virtual CMMFBuffer* CreateSourceBufferL(TMediaId aMediaId, CMMFBuffer& /*aSinkBuffer*/, TBool &aReference);

    65 

    66 

    67 		virtual void SourceStopL();

    68 

    69 		virtual void SourceCustomCommand(TMMFMessage& aMessage);

    70 

    71 		void HandleFillBuffer(CMMFBuffer* aBuffer, MDataSink* aConsumer);

    72 

    73 		IMPORT_C TBool IsSeekingSupported();

    74 

    75 		IMPORT_C TBool IsRandomSeekingSupported();

    76 

    77 	private:

    78 		CS60StreamingSource(TUid aType);

    79 		~CS60StreamingSource(void);

    80 		void ConstructL (void);

    81 

    82 	private: // Data

    83 

    84         // Queue of data buffers to be processed

    85         TSglQue<CDataBufferQueueItem>* iDataBufferQueue;

    86 

    87         TSglQue<CReadRequest>* iReadRequestQueue;

    88 

    89 		TBool iHandlingRequest;

    90         CReadRequest* iCurrentRequest;

    91 

    92         CDataBufferQueueItem* iSrcBuffer;

    93 	};

    94 

    95 #endif // __S60STREAMINGSOURCE_H__

    96 

    97 //  End of File