1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/mmhais/a3facl/src/buffersource/logicalbuffersource.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,90 @@
     1.4 +/*
     1.5 +* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description:
    1.18 +* Name        : logicalbuffersource.h
    1.19 +* Part of     : ACL Logical Layer
    1.20 +*
    1.21 +*/
    1.22 +
    1.23 +
    1.24 +
    1.25 +#ifndef LOGICALBUFFERSOURCE_H
    1.26 +#define LOGICALBUFFERSOURCE_H
    1.27 +
    1.28 +#include <e32base.h>
    1.29 +#include <f32file.h>
    1.30 +#include <a3f/a3f_trace_utils.h>
    1.31 +#include <a3f/mbuffersource.h>
    1.32 +#include <a3f/maudiodatasupplier.h>
    1.33 +
    1.34 +#include "audioprocessingunit.h"
    1.35 +
    1.36 +#include <a3f/maudioprocessingunitobserver.h>
    1.37 +
    1.38 +
    1.39 +class MLogicalSettingObserver;
    1.40 +
    1.41 +/**
    1.42 +
    1.43 +*/
    1.44 +NONSHARABLE_CLASS(CLogicalBufferSource) :	public CAudioProcessingUnit,
    1.45 +											public MMMFBufferSource,
    1.46 +											public MMMFAudioDataSupplier
    1.47 +	{
    1.48 +friend class CAudioContext;
    1.49 +friend class CLogicalAudioStream;
    1.50 +public:
    1.51 +
    1.52 +	/**
    1.53 +	Destructor.
    1.54 +
    1.55 +	Deletes all objects and releases all resource owned by this instance.
    1.56 +	*/
    1.57 +	virtual ~CLogicalBufferSource();
    1.58 +
    1.59 +	// from MMMFBufferSource
    1.60 +	virtual TInt SetDataSupplier(MMMFAudioDataSupplier& aSupplier);
    1.61 +	virtual TInt BufferFilled(CMMFBuffer* aBuffer);
    1.62 +	virtual TInt BuffersDiscarded();
    1.63 +
    1.64 +	// from CAudioProcessingUnit
    1.65 +	virtual TBool IsTypeOf(TUid aTypeId) const;
    1.66 +	virtual TAny* Interface(TUid aType);
    1.67 +
    1.68 +	// from MMMFDataSupplier
    1.69 +	virtual void BufferToBeFilled(MMMFBufferSource* aSource, CMMFBuffer* aBuffer);
    1.70 +	virtual void DiscardBuffers(MMMFBufferSource* aSource);
    1.71 +
    1.72 +	/**
    1.73 +	Create a new instance.
    1.74 +
    1.75 +	@return CBufferSource* a pointer to the created instance.
    1.76 +	*/
    1.77 +	static CLogicalBufferSource* NewL(TAny* aParameters);
    1.78 +
    1.79 +private:
    1.80 +	void ConstructL();
    1.81 +
    1.82 +	CLogicalBufferSource(TAny* aParameters);
    1.83 +
    1.84 +protected:
    1.85 +	// The adaptation buffer source
    1.86 +	MMMFBufferSource* iAdaptationBufferSource;
    1.87 +
    1.88 +private:
    1.89 +	// The client which provides data
    1.90 +	MMMFAudioDataSupplier* iSupplier;
    1.91 +	};
    1.92 +
    1.93 +#endif // LOGICALBUFFERSOURCE_H