Symaptic: os/mm/mmhais/a3facl/src/buffersource/logicalbuffersource.h@bde4ae8d615e

     1 /*

     2 * Copyright (c) 2004-2009 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:

    15 * Name        : logicalbuffersource.h

    16 * Part of     : ACL Logical Layer

    17 *

    18 */

    22 #ifndef LOGICALBUFFERSOURCE_H

    23 #define LOGICALBUFFERSOURCE_H

    25 #include <e32base.h>

    26 #include <f32file.h>

    27 #include <a3f/a3f_trace_utils.h>

    28 #include <a3f/mbuffersource.h>

    29 #include <a3f/maudiodatasupplier.h>

    31 #include "audioprocessingunit.h"

    33 #include <a3f/maudioprocessingunitobserver.h>

    36 class MLogicalSettingObserver;

    38 /**

    40 */

    41 NONSHARABLE_CLASS(CLogicalBufferSource) :	public CAudioProcessingUnit,

    42 											public MMMFBufferSource,

    43 											public MMMFAudioDataSupplier

    44 	{

    45 friend class CAudioContext;

    46 friend class CLogicalAudioStream;

    47 public:

    49 	/**

    50 	Destructor.

    52 	Deletes all objects and releases all resource owned by this instance.

    53 	*/

    54 	virtual ~CLogicalBufferSource();

    56 	// from MMMFBufferSource

    57 	virtual TInt SetDataSupplier(MMMFAudioDataSupplier& aSupplier);

    58 	virtual TInt BufferFilled(CMMFBuffer* aBuffer);

    59 	virtual TInt BuffersDiscarded();

    61 	// from CAudioProcessingUnit

    62 	virtual TBool IsTypeOf(TUid aTypeId) const;

    63 	virtual TAny* Interface(TUid aType);

    65 	// from MMMFDataSupplier

    66 	virtual void BufferToBeFilled(MMMFBufferSource* aSource, CMMFBuffer* aBuffer);

    67 	virtual void DiscardBuffers(MMMFBufferSource* aSource);

    69 	/**

    70 	Create a new instance.

    72 	@return CBufferSource* a pointer to the created instance.

    73 	*/

    74 	static CLogicalBufferSource* NewL(TAny* aParameters);

    76 private:

    77 	void ConstructL();

    79 	CLogicalBufferSource(TAny* aParameters);

    81 protected:

    82 	// The adaptation buffer source

    83 	MMMFBufferSource* iAdaptationBufferSource;

    85 private:

    86 	// The client which provides data

    87 	MMMFAudioDataSupplier* iSupplier;

    88 	};

    90 #endif // LOGICALBUFFERSOURCE_H

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--