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/*
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* Copyright (c) 2002-2007 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: This file contains the header file of the class CPEAudioDtmfTonePlayer,
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* that plays DTMF tones using media server.
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*
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*/
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#ifndef CPEAUDIODTMFTONEPLAYER_H
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#define CPEAUDIODTMFTONEPLAYER_H
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// INCLUDES
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#include <e32base.h>
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#include <sounddevice.h>
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// CONSTANTS
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// None.
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// MACROS
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// None.
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// DATA TYPES
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// None.
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// FUNCTION PROTOTYPES
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// None.
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// FORWARD DECLARATIONS
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class CMMFDevSound;
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// CLASS DECLARATION
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/**
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* plays DTMF tones using media server
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*
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* @lib audiohandling.lib
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* @since Series60_2.7
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*/
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class CPEAudioDtmfTonePlayer
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: public CBase,
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public MDevSoundObserver
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{
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public: // Constructors and destructor
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/**
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* Two-phased constructor.
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*/
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static CPEAudioDtmfTonePlayer* NewL();
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/**
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* Destructor.
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*/
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virtual ~CPEAudioDtmfTonePlayer();
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public:
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/**
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* Sets volume.
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* @since Series60_2.7
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* @param aVolume volume value or KDtmfSilent.
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* @return None.
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*/
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void SetVolume( TInt aVolume );
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/**
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* Starts playing given dtmf tone infinitely.
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* @since Series60_2.7
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* @param aTone Tone to be played.
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* @return None.
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*/
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void PlayDtmfTone( TChar aTone );
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/**
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* Cancels playing.
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* @since Series60_2.7
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* @param None.
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* @return None.
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*/
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void Cancel();
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public: //From MDevSoundObserver
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/**
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* See MDevSoundObserver
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*/
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void InitializeComplete( TInt aError );
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/**
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* See MDevSoundObserver
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*/
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void ToneFinished( TInt aError );
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/**
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* See MDevSoundObserver
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*/
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void BufferToBeFilled( CMMFBuffer* aBuffer );
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/**
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* See MDevSoundObserver
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*/
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void PlayError( TInt aError );
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/**
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* See MDevSoundObserver
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*/
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void BufferToBeEmptied( CMMFBuffer* aBuffer );
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/**
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* See MDevSoundObserver
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*/
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void RecordError( TInt aError );
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/**
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* See MDevSoundObserver
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*/
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void ConvertError( TInt aError );
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/**
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* See MDevSoundObserver
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*/
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void DeviceMessage( TUid aMessageType, const TDesC8& aMsg );
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protected:
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/**
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* C++ default constructor.
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*/
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CPEAudioDtmfTonePlayer();
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void ConstructL();
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/**
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* Normalize tone.
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* @since Series60_2.7
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* @param aTone dtmf tone.
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* @return None.
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*/
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void Normalize( TChar& aTone );
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private: //new functions
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/**
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* Converts the given value to the one that matches tha range used by
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* CMMFDevSound. The CMMFDevSound uses valuess that can from 0 to the
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* value returned by a call to CMMFDevSound::MaxVolume().
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*/
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TInt ConvertVolume( TInt aVolume );
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protected: // Data
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// Current volume setting.
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TInt iVolume;
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// DTMF player instance
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CMMFDevSound* iDTMFPlayer;
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};
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#endif // CPEAUDIODTMFTONEPLAYER_H
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// End of File
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