mmserv/voipaudioservices/VoIPIntfc/inc/VoIPDownlinkStreamImpl.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:08:46 +0200
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/*
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* Copyright (c) 2007-2008 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:  VOIP Audio Services
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*
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*/
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#ifndef __VOIPDOWNLINKSTREAMIMPL_H
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#define __VOIPDOWNLINKSTREAMIMPL_H
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// INCLUDES
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#include <voipdownlinkstream.h>
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#include "VoIPAudioSession.h"
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#include "VoIPDtmfTonePlayerImpl.h"
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#include "VoIPQueueHandler.h"
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/**
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 *  CVoIPAudioDownlinkStreamImpl class
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 *
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 *  ?more_complete_description
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 *
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 *  @lib VoIPAudioIntfc.dll
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 *  @since S60 v5.0
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 */
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NONSHARABLE_CLASS(CVoIPAudioDownlinkStreamImpl) :
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                    public CBase,
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                    public CVoIPAudioDownlinkStream,
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                    public MQueueHandlerObserver
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    {
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    enum TQueueType
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        {
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        EMsgBufQueue,
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        EMsgComQueue
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        };
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public:
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    /**
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     * 2-phased 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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     */
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    static CVoIPAudioDownlinkStreamImpl* NewL(
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                    const TMMFPrioritySettings aPriority);
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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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    virtual ~CVoIPAudioDownlinkStreamImpl();
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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 MVoIPDownlinkObserver&
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     * @return TInt
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     */
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    TInt Open(MVoIPDownlinkObserver& aObserver);
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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 TVersion&
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     * @return TInt
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     */
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    TInt GetVersion(TVersion& aVersion);
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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 TInt&
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     * @return TInt
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     */
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    TInt GetMaxVolume(TInt& aVolume);
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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 TInt
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     * @return TInt
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     */
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    TInt SetVolume(TInt aVolume);
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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 TInt&
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     * @return TInt
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     */
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    TInt GetVolume(TInt& aVolume);
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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 TMMFPrioritySettings
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     * @param RArray<TVoIPCodecFormat>&
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     * @return void
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     */
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    void GetSupportedFormatsL(const TMMFPrioritySettings aPriority,
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                              RArray<TVoIPCodecFormat>& aFormats);
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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 TVoIPCodecFormat
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     * @param CVoIPFormatIntfc&
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     * @return void
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     */
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    void SetFormatL(TVoIPCodecFormat aFormat, CVoIPFormatIntfc*& aIntfc);
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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 none
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     * @return TVoIPCodecFormat
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     */
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    TVoIPCodecFormat GetFormat();
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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 TVoIPOutputDevice
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     * @return TInt
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     */
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    TInt SetAudioDevice(const TVoIPOutputDevice aDevice);
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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 TVoIPOutputDevice&
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     * @return TInt
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     */
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    TInt GetAudioDevice(TVoIPOutputDevice& aDevice);
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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 none
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     * @return TInt
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     */
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    TInt Start();
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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 none
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     * @return TInt
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     */
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    TInt Stop();
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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 none
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     * @return void
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     */
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    void Close();
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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 CVoIPDataBuffer*
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     * @return TInt
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     */
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    TInt BufferFilled(CVoIPDataBuffer* aBuffer);
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    /**
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     * ?description
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   201
     *
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     * @since S60 v5.0
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     * @param CVoIPJitterBufferIntfc*&
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     * @return void
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     */
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    void CreateJitterBufferIntfcL(CVoIPJitterBufferIntfc*& aJBIntfc);
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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 none
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     * @return RVoIPAudioSession*
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     */
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    RVoIPAudioSession* GetSession();
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// From MQueueHandlerObserver
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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 CVoIPDataBuffer*
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     * @return void
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     */
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    virtual void FillBuffer(CVoIPDataBuffer* aBuffer);
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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 TPtr8
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     * @return void
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     */
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    virtual void EmptyBuffer(CVoIPDataBuffer* /*aBuffer*/) {}
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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 TInt
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     * @param TInt
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     * @return void
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     */
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    virtual void Event(TInt aEventType, TInt aError);
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private:
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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 TInt
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     */
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    CVoIPAudioDownlinkStreamImpl();
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    /**
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     * Symbian constructor
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     *
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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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    void ConstructL(const TMMFPrioritySettings aPriority);
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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 TDesC&
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     * @param TInt
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     * @param TQueueType
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     * @return TInt
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     */
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    TInt CreateQueue(const TDesC& aQueueName,
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                     const TInt aNumSlots,
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                     const TQueueType aQueueType);
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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 none
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     * @return void
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     */
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    void ReceiveMsgQHandlerEventsL();
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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 none
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     * @return void
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     */
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    void ReceiveMsgQComHandlerEventsL();
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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 TVoIPCodecFormat
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     * @return TFourCC
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     */
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    TUint32 CodecFourCC(TVoIPCodecFormat aFormat);
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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 TUint32
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     * @return TVoIPCodecFormat
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     */
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    TVoIPCodecFormat ConvertFourCC(TUint32 aCodec);
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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 TVoIPCodecFormat
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     * @return TBool
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     */
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    TBool IsCodecSupportedL(TVoIPCodecFormat aFormat);
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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 TVoIPCodecFormat
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     * @return TBool
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     */
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   333
    TBool FindFormat(TVoIPCodecFormat aFormat);
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private:
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    friend class CDTMFTonePlayerImpl;
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private:
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// Client side VoIP server session
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    RVoIPAudioSession         iVoIPAudioSession;
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    MVoIPDownlinkObserver*    iObserver;
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   343
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// Message queues
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   345
    RMsgQueue<TVoIPMsgBuf>    iMsgQueue;
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   346
    RMsgQueue<TVoIPMsgBuf>    iMsgComQueue;
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   347
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   348
// Message queue handlers
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   349
    CQueueHandler*            iMsgQHandler;
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   350
    CQueueHandler*            iMsgQComHandler;
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   351
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   352
    TMMFPrioritySettings      iPriority;
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   353
    TPtr8                     iBufferPtr;
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    TInt                      iBufferLen;
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   355
    TInt                      iG711FrameSize;
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   356
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    TVoIPCodecFormat          iFormat;
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    RArray<TVoIPCodecFormat>* iCodecFormats;
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    };
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#endif //__VOIPDOWNLINKSTREAMIMPL_H
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// End of file