mmmw_plat/voip_audio_services_api/inc/voipjitterbufferintfc.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Feb 2010 23:19:48 +0200
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Revision: 201003 Kit: 201007
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/*
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 * Copyright (c) 2008 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:  Defines APIs common to all supported codecs.
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 *
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 */
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#ifndef __VOIPJITTERBUFFERINTFC_H
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#define __VOIPJITTERBUFFERINTFC_H
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//  INCLUDES
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#include <e32base.h>
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#include <voipaudiocommon.h>
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// FORWARD DECLARATIONS
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class CVoIPJitterBufferIntfc;
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class CVoIPJitterBufferIntfcImpl;
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/**
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 *  TVoIPJBConfig
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 *  ?description
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 *
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 */
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class TVoIPJBConfig
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    {
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public:
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    // Jitter latency
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    TUint iJitterLatency;
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    // Frame time
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    TUint8 iSampleInterval;
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    //Jitter Buffer buffer queue size
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    TUint iJBBufferLength;
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    //Jitter Buffer threshold
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    TUint iJBThreshold;
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    //Jitter Buffer InactivityTimeOut
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    TUint iJBInactivityTimeOut;
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    //Jitter Buffer tone TimeOut
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    TUint iJBPlayToneTimeout;
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    //Jitter Buffer tone frequecy
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    TUint iJBPlayToneFrequency;
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    //Jitter Buffer tone duration
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    TUint iJBPlayToneDuration;
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    };
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/**
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 *  MVoIPJitterBufferObserver class
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 *
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 *  description
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 *
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 *  @lib VoIPAudioIntfc.dll
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 *
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 */
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class MVoIPJitterBufferObserver
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    {
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public:
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    static const TUint KJBReserved1 = 1; //TBD
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    static const TUint KJBReserved2 = 2; //TBD
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public:
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    /**
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     * ?description
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     *
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     * @since S60 v5.0
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     * @param const CVoIPJitterBufferIntfc&
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     * @param TInt - event type
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     * @return void
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     */
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    virtual void Event(const CVoIPJitterBufferIntfc& aSrc,
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            TInt aEventType) = 0;
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    };
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/**
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 *  CVoIPFormatIntfc class
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 *
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 *  Base class for codec format configuration
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 *
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 *  @lib VoIPAudioIntfc.dll
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 *
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 */
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class CVoIPJitterBufferIntfc
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    {
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public:
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    /**
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     * Destructor
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     *
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     * @since S60 v5.0
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     * @param none
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     * @return none
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     */
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    IMPORT_C virtual ~CVoIPJitterBufferIntfc();
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    /**
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     * ?description
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     *
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     * @since S60 v5.0
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     * @param MVoIPFormatObserver&
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     * @return TInt
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     */
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    IMPORT_C TInt SetObserver(MVoIPJitterBufferObserver& aObserver);
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    /**
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     * ConfigureJitterBuffer
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     * @since S60 v5.0
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     * @param TVoIPJBConfig&
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     * @return void
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     */
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    IMPORT_C TInt ConfigureJitterBuffer(const TVoIPJBConfig& aJbConfig);
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    /**
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     * ResetJitterbuffer
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     * @since S60 v5.0
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     * @param aPlayTone ETrue, if tone should be played
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     * @return void
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     */
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    IMPORT_C TInt ResetJitterBuffer(TBool aPlayTone = ETrue);
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    /**
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     * DelayDown
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     * @since S60 v5.0
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     * @param none
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     * @return void
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     */
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    IMPORT_C TInt DelayDown();
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    /**
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     * DelayUp
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     * @since S60 v5.0
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     * @param none
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     * @return void
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     */
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    IMPORT_C TInt DelayUp();
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protected:
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    /**
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     * Constructor
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     *
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     * @since S60 v5.0
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     * @param none
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     * @return none
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     */
3
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    CVoIPJitterBufferIntfc();
0
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    /**
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     * 2-nd phase constructor
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     *
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     * @since S60 v5.0
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     * @param CVoIPJitterBufferIntfcImpl*
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     * @return void
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     */
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    void ConstructL(CVoIPJitterBufferIntfcImpl* aVoIPJitterBufferIntfcImpl);
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protected:
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    CVoIPJitterBufferIntfcImpl* iVoIPJitterBufferIntfcImpl;
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    };
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#endif  //__VOIPJITTERBUFFERINTFC_H
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// End of File