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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 MAUDIODATASUPPLIER_H
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#define MAUDIODATASUPPLIER_H
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#include <a3f/a3fbase.h>
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class MMMFBufferSource;
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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 source client must implement.
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*/
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class MMMFAudioDataSupplier
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{
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public:
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/**
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* Request a buffer to be filled with audio data.
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*
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* After filling the buufer, the client must call MBufferSource::BufferFilled() passing the filled buffer as a parameter.
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*
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* @param aSource a pointer to the source requesting the buffer.
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* @param aBuffer a pointer to the buffer to fill.
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*/
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virtual void BufferToBeFilled(MMMFBufferSource* aSource, CMMFBuffer* aBuffer)=0;
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/**
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* Indicates that all buffers originating from this source have been removed from the audio path.
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* Also, all pending buffers previously requested by this source have become invalid and must not be used.
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*
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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(MMMFBufferSource* aSource)=0;
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};
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#endif // MAUDIODATASUPPLIER_H
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