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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 class is used for playing MIDI.
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*
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*/
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#ifndef CMMAMIDIPLAYER_H
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#define CMMAMIDIPLAYER_H
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// INCLUDES
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#include "cmmaplayer.h"
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#include <midiclientutility.h>
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#include <e32base.h>
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// CONSTANTS
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_LIT(KMMAMIDIPlayer, "MIDIPlayer");
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const TMdaPriorityPreference KMMAMIDIPriorityPreference =
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EMdaPriorityPreferenceTimeAndQuality;
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// FORWARD DECLARATIONS
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class CMMAEventSource;
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// CLASS DECLARATION
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/**
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* This class is used for playing MIDI.
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*
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*
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*/
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class CMMAMIDIPlayer : public CMMAPlayer, public MMidiClientUtilityObserver
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{
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public: // Construction
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static CMMAMIDIPlayer* NewLC(const TDesC& aContentType,
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TFileName aFileName);
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// Destructor
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~CMMAMIDIPlayer();
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protected:
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// C++ constructor
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CMMAMIDIPlayer(TFileName aFileName);
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void ConstructL(const TDesC& aContentType);
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public: // new methods
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IMPORT_C CMidiClientUtility* MidiClient() const;
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void ReInitializeMidiEngineL(const TDesC8* aMidiSequence);
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void addObserverL(MMidiClientUtilityObserver* aObserver);
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public: // from CMMAPlayer
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void StartL(TBool aPostEvent);
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void StopL(TBool aPostEvent);
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void RealizeL();
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void PrefetchL();
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void DeallocateL();
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void GetDuration(TInt64* aDuration);
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void SetMediaTimeL(TInt64* aTime);
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void GetMediaTime(TInt64* aMediaTime);
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void CloseL();
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const TDesC& Type();
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public: // from CMMAPlayer/MMMASourceStreamListener
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void ReadCompletedL(TInt aStatus, const TDesC8& aData);
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void PlayCompleteL(TInt aError);
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public: // from MMidiClientUtilityObserver
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void MmcuoStateChanged(TMidiState aOldState,TMidiState aNewState,const TTimeIntervalMicroSeconds& aTime,TInt aError);
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void MmcuoTempoChanged(TInt aMicroBeatsPerMinute);
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void MmcuoVolumeChanged(TInt aChannel,TReal32 aVolumeInDecibels);
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void MmcuoMuteChanged(TInt aChannel,TBool aMuted);
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void MmcuoSyncUpdate(const TTimeIntervalMicroSeconds& aMicroSeconds,TInt64 aMicroBeats);
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void MmcuoMetaDataEntryFound(const TInt aMetaDataEntryId,const TTimeIntervalMicroSeconds& aPosition);
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void MmcuoMipMessageReceived(const RArray<TMipMessageEntry>& aMessage);
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void MmcuoPolyphonyChanged(TInt aNewPolyphony);
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void MmcuoInstrumentChanged(TInt aChannel,TInt aBankId,TInt aInstrumentId);
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protected:
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void CloseClientUtility();
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private: // Data
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CMidiClientUtility* iMidi;
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// CActiveShedulerWait object for reinitializing midi engine
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CActiveSchedulerWait* iActiveSchedulerWait;
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// Array for subsequent MMidiClientUtilityObservers
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RPointerArray<MMidiClientUtilityObserver> iObservers;
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TFileName iFileName;
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/**
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* Cached media time
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*/
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TInt64 iMediaTime;
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/**
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* The time that will be sent with CMMAPlayerEvent::EStarted
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* (may be different from iMediaTime).
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*/
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TInt64 iStartedEventTime;
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};
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#endif // CMMAMIDIPLAYER_H
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