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/*
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* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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/**
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@file
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@publishedPartner
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@released
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*/
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#ifndef MAUDIODATACONSUMER_H
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#define MAUDIODATACONSUMER_H
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#include <a3f/a3fbase.h>
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class MMMFBufferSink;
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class CMMFBuffer;
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/**
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* An interface to a set of callback functions that a buffer sink client must implement.
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*/
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class MMMFAudioDataConsumer
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{
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public:
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/**
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* Provides a buffer with audio data to the client.
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*
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* After reading the data from the buffer, the client must call MBufferSink::BufferEmptied() passing the buffer as a parameter.
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* @param aSink a pointer to the sink providing the buffer.
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* @param aBuffer a pointer to the buffer to empty.
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*/
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virtual void BufferToBeEmptied(MMMFBufferSink* aSink, CMMFBuffer* aBuffer)=0;
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/**
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* Indicates that any outstanding buffer requests are to be cancelled, so that control of those buffers returns to the framework.
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* The client must call MMMFBufferSink::BuffersDiscarded() to acknowledge that this has taken place.
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* @param aSource the source whose previous buffer requests should be ignored.
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*/
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virtual void DiscardBuffers(MMMFBufferSink* aSink)=0;
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};
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#endif // MAUDIODATACONSUMER_H
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