khronosfws/openmax_al/src/mmf_adaptation/positionupdatetimer.h
author hgs
Fri, 11 Jun 2010 19:59:23 -0500
changeset 25 6f7ceef7b1d1
parent 19 4a629bc82c5e
permissions -rw-r--r--
201023
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/*
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 * Copyright (c) 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: Handles marker timer implementation 
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 *
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 */
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#ifndef CPOSITIONUPDATETIMER_H
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#define CPOSITIONUPDATETIMER_H
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#include <e32base.h>
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#include "openmaxalwrapper.h"
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class CMdaAudioPlayerUtility;
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class CVideoPlayerUtility2;
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NONSHARABLE_CLASS(CPositionUpdateTimer) : public CActive
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    {
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public:
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    // Construct/destruct
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    static CPositionUpdateTimer* NewL(CMdaAudioPlayerUtility* aAudioPlayer,
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            CVideoPlayerUtility2* aVideoPlayer);
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    virtual ~CPositionUpdateTimer();
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public:
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    void SetContext(TAny* aCtx);
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    void SetPositionUpdatePeriod(XAmillisecond aPos);
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    void SetCallbackEventMask(XAuint32 aMask);
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    void RegisterCallback(xaPlayCallback aCallback);
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    void UseAudioPlayer();
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    void UseVideoPlayer();
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    void ResetPlayer();
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    TInt Start();
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    void Stop();
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protected:
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    // From CActive
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    void RunL();
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    void DoCancel();
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    TInt RunError(TInt aError);
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private:
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    CPositionUpdateTimer(CMdaAudioPlayerUtility* aAudioPlayer,
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            CVideoPlayerUtility2* aVideoPlayer);
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    void CostructL();
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    TInt GetCurrentPlayPosition(TTimeIntervalMicroSeconds& aPos);
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private:
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    RTimer iTimer; // Has
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    TAny* iCtx;
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    CMdaAudioPlayerUtility* iAudioPlayer;
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    CVideoPlayerUtility2* iVideoPlayer;
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    CBase* iPlayerToUse;
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    XAmillisecond iPositionUpdatePeriod;
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    XAuint32 iCallbackEventMask;
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    xaPlayCallback iCallback;
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    TTimeIntervalMicroSeconds32 iDelay;
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    TBool iSyncToPlayHead;
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    TTimeIntervalMicroSeconds iSyncToPlayHeadStartPos;
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    };
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#endif /* CPOSITIONUPDATETIMER_H */