mpx/playbackframework/playbackengine/inc/mpxplaybackengine.inl
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 25 May 2010 13:14:13 +0300
branchRCL_3
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parent 0 a2952bb97e68
permissions -rw-r--r--
Revision: 201019 Kit: 2010121
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/*
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* Copyright (c) 2006 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:  Inline implementation of playback engine
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*
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*/
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#include <mpxlog.h>
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// ============================ LOCAL FUNCTIONS ==============================
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// ----------------------------------------------------------------------------
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// Check if a pointer is NULL
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// ----------------------------------------------------------------------------
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//
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#include <mpxmessage2.h>
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#include <mpxcollectionplaylist.h>
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#include <mpxmediacollectiondetaildefs.h>
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#include <mpxplaybackmessagedefs.h>
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inline void CheckPtrL(TAny* aPtr)
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    {
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    if (!aPtr)
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        {
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        User::Leave(KErrNotReady);
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        }
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    }
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// ----------------------------------------------------------------------------
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// Check if a pointer is NULL
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// ----------------------------------------------------------------------------
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//
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inline void CheckPtrL(const TAny* aPtr)
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    {
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    CheckPtrL(const_cast<TAny*>(aPtr));
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    }
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// ============================ MEMBER FUNCTIONS ==============================
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// ----------------------------------------------------------------------------
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// Return plugin interface
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// ----------------------------------------------------------------------------
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//
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inline CMPXPlaybackPlugin* CMPXPlaybackEngine::PluginL() const
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    {
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    CheckPtrL(iPluginHandler->Plugin());
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    return iPluginHandler->Plugin();
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    }
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// ----------------------------------------------------------------------------
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// Return the list of clients attached to this player
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// ----------------------------------------------------------------------------
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//
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inline CMPXClientList* CMPXPlaybackEngine::ClientList()
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    {
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    return iClientList;
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    }
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// ----------------------------------------------------------------------------
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// Return plugin handler
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// ----------------------------------------------------------------------------
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//
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inline CMPXPlaybackPluginHandler* CMPXPlaybackEngine::PluginHandler()
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    {
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    return iPluginHandler;
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    }    
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// ----------------------------------------------------------------------------
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// Does this player have access to audio resource
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// ----------------------------------------------------------------------------
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//
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inline TBool CMPXPlaybackEngine::IsPlayerActive() const
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    {
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    return iPlayerActive;
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    }
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// ----------------------------------------------------------------------------
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// Return mode id of the player engine
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// ----------------------------------------------------------------------------
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//
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inline const TUid& CMPXPlaybackEngine::ModeId() const
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    {
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    return iModeId;
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    }
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// ----------------------------------------------------------------------------
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// Return category of the player engine
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// ----------------------------------------------------------------------------
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//
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inline const TInt CMPXPlaybackEngine::Category() const
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    {
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    return iCategory;
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    }
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// ----------------------------------------------------------------------------
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// Current state
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// ----------------------------------------------------------------------------
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//
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inline TMPXPlaybackState CMPXPlaybackEngine::State() const
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    {
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    MPX_DEBUG3("CMPXPlaybackEngine::State(): this = 0x%08x, iState = %d", this, iState);
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    return iState;
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    }   
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// ----------------------------------------------------------------------------
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// Current collection path, or KNullDesC if none (i.e. not from collection)
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// ----------------------------------------------------------------------------
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//
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inline const CMPXCollectionPlaylist* CMPXPlaybackEngine::Playlist() const
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    {
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    CMPXCollectionPlaylist* pl = NULL;
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    if (iPlaylist && iPlaySource==EPlayFromCollection)
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        {
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        pl = iPlaylist;
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        }    
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    return pl;
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    }
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// ----------------------------------------------------------------------------
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// Current uri, or KNullDesC if none (i.e. uri not supplied)
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// ----------------------------------------------------------------------------
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//
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inline const TDesC& CMPXPlaybackEngine::Uri() const
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    { 
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    return (iUri && iPlaySource == EPlayFromUri) ? 
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            static_cast<const TDesC&>(*iUri) : KNullDesC;
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    }    
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// ----------------------------------------------------------------------------
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// Current file handle
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// ----------------------------------------------------------------------------
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//
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inline const RFile& CMPXPlaybackEngine::File() const
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    {
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    return iFile;
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    }
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// ----------------------------------------------------------------------------
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// Return last active process id
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// ----------------------------------------------------------------------------
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//
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inline TProcessId CMPXPlaybackEngine::LastActiveProcessId() const
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    {
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    return iLastActiveProcess;
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    }
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// ----------------------------------------------------------------------------
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// CPlaybackCallbackReflector constructor
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// ----------------------------------------------------------------------------
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//
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inline CMPXPlaybackEngine::TCallbackReflector::TCallbackReflector(
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                                                   CMPXPlaybackEngine& aEngine)
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    : iEngine(aEngine)
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    {
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    }
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// ----------------------------------------------------------------------------
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// Handle playback property
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// Called by CMPXPlaybackEngine::HandleProperty which is called by plugin
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// ----------------------------------------------------------------------------
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//  
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void CMPXPlaybackEngine::TCallbackReflector::HandleProperty(
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    TMPXPlaybackProperty aProperty,
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    TInt aValue,
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    TInt aError)
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    {
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    MPX_FUNC_EX("CMPXPlaybackEngine::TCallbackReflector::HandleProperty");
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    MPX_DEBUG5("HandleProperty eninge 0x%08x prop %d val %d err %d", 
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                &iEngine, aProperty, aValue, aError);
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    ASSERT(iEngine.iTaskQueue->Task() == EProperty);
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    if (KErrNone == aError)
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        {
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        iEngine.iProperties[aProperty]=aValue;
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        TRAP_IGNORE(
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            iEngine.iClientList->SendMsgL(TMPXPlaybackMessage(
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                                    TMPXPlaybackMessage::EPropertyChanged,
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                                    aProperty, aValue)));
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        }
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    // Task will be completed in the CMPXPlaybackEngine::HandleProperty
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    }
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// ----------------------------------------------------------------------------
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// Method is called continously until aComplete=ETrue, signifying that 
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// it is done and there will be no more callbacks
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// ----------------------------------------------------------------------------
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//  
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void CMPXPlaybackEngine::TCallbackReflector::HandleSubPlayerNames(
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                                               TUid /*aPlayer*/,
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                                               const MDesCArray* /*aSubPlayers*/,
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                                               TBool /*aComplete*/,
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                                               TInt  /*aError*/)
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    {
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    MPX_FUNC_EX("CMPXPlaybackEngine::TCallbackReflector::HandleSubPlayerNames");
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    }
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// ----------------------------------------------------------------------------
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// Callback of media request
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// ----------------------------------------------------------------------------
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//  
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void CMPXPlaybackEngine::TCallbackReflector::HandleMedia(
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                                    CMPXMedia* /*aMedia*/,
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                                    TInt /*aError*/)
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    {
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    MPX_FUNC_EX("CMPXPlaybackEngine::TCallbackReflector::HandleMedia");
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    }
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#ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
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// ----------------------------------------------------------------------------
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// Current file handle
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// ----------------------------------------------------------------------------
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//
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inline const RFile64& CMPXPlaybackEngine::File64() const
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    {
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    MPX_FUNC("CMPXPlaybackEngine::File64()");
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    return iFile64;
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    }
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#endif // SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
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//End of file