1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/a3facf/inc/maudiocodecobserver.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,85 @@
     1.4 +/*
     1.5 +* Copyright (c) 2007-2009 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 +* Save as expressly licensed to you by Symbian Software Ltd, all rights reserved.
    1.19 +* 
    1.20 +*
    1.21 +*/
    1.22 +
    1.23 +
    1.24 +
    1.25 +/**
    1.26 + @file
    1.27 + @publishedPartner
    1.28 + @released
    1.29 +*/
    1.30 +
    1.31 +#ifndef MAUDIOCODECOBSERVER_H
    1.32 +#define MAUDIOCODECOBSERVER_H
    1.33 +
    1.34 +#include <e32base.h>
    1.35 +#include <a3f/a3fbase.h>
    1.36 +
    1.37 +/**
    1.38 + *  An interface to a set of AudioGainControl callback functions.
    1.39 + *
    1.40 + *  This serves as the method of communication between the client and the
    1.41 + *  AudioGainControl.
    1.42 + *
    1.43 + *  The class is a mixin and is intended to be inherited by the client class
    1.44 + *  that is interested in observing the Gain operations. The functions
    1.45 + *  encapsulated by this class are called when specific events occur while
    1.46 + *  processing audio.
    1.47 + *
    1.48 + */
    1.49 +class MAudioCodecObserver
    1.50 +	{
    1.51 +public:
    1.52 +
    1.53 +	/**
    1.54 +	* Callback showing completion SetSampleRate().
    1.55 +	*
    1.56 +	* @param aError will be KErrNone if the action succeeded, otherwise it will be a system error
    1.57 +	* specific errors to be defined.
    1.58 +	*/
    1.59 +	virtual void SampleRateSet(TInt aError)=0;
    1.60 +
    1.61 +	/**
    1.62 +	* Callback showing completion SetMode().
    1.63 +	*
    1.64 +	* @param aError will be KErrNone if the action succeeded, otherwise it will be a system error
    1.65 +	* specific errors to be defined.
    1.66 +	*/
    1.67 +	virtual void ModeSet(TInt aError)=0;
    1.68 +
    1.69 +	/**
    1.70 +	* Callback showing completion GetSupportedSampleRates().
    1.71 +	*
    1.72 +	* @param Error will be KErrNone if the action succeeded, otherwise it will be a system error 
    1.73 +	* specific errors to be defined. If aError is not KErrNone, then the state of aSupportedRates is undefined.
    1.74 +	*/
    1.75 +	virtual void GetSupportedSampleRatesComplete (TInt aError)=0;
    1.76 +
    1.77 +	/**
    1.78 +	* Callback showing completion GetSupportedModes().
    1.79 +	*
    1.80 +	* @param aError will be KErrNone if the action succeeded, otherwise it will be a system error
    1.81 +	* specific errors to be defined. If aError is not KErrNone, then the state of aSupportedModes is undefined.
    1.82 +	*/
    1.83 +	virtual void GetSupportedModesComplete (TInt aError)=0;
    1.84 +
    1.85 +	};
    1.86 +
    1.87 +#endif // MAUDIOCODECOBSERVER_H
    1.88 +