mmappcomponents/harvester/metadataextractor/src/mpxfileinfoutility.cpp
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:23:05 +0100
branchRCL_3
changeset 25 63223d4fd956
parent 24 6c1dfe4da5dd
permissions -rw-r--r--
Revert incorrect RCL_3 drop: Revision: 201033 Kit: 201035
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/*
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* Copyright (c) 2005 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 responsible for reading file info
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*  Version     : %version: e003sa33#5.1.3.1.10 % << Don't touch! Updated by Synergy at check-out.
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*
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*  Copyright © 2005 Nokia. All rights reserved.
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*/
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// INCLUDE FILES
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#include <mmf/common/mmfstandardcustomcommands.h>
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#include <mmf/server/mmffile.h>
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#include <mmf/common/mmcaf.h>
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#include <mpxlog.h>
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#include "mpxfileinfoutility.h"
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using namespace ContentAccess;
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// CONSTANTS
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const TInt KMCExpandSize = 100;
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// ============================ MEMBER FUNCTIONS ==============================
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// ----------------------------------------------------------------------------
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// Two-phased constructor.
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// ----------------------------------------------------------------------------
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//
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CMPXFileInfoUtility* CMPXFileInfoUtility::NewL()
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    {
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    CMPXFileInfoUtility* self = NewLC();
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    CleanupStack::Pop(self);
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    return self;
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    }
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// ----------------------------------------------------------------------------
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// Two-phased constructor, leave object pointer in the cleanup stack
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// ----------------------------------------------------------------------------
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//
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CMPXFileInfoUtility* CMPXFileInfoUtility::NewLC()
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    {
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    CMPXFileInfoUtility* self = new (ELeave) CMPXFileInfoUtility();
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    CleanupStack::PushL(self);
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    self->ConstructL();
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    return self;
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    }
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// ----------------------------------------------------------------------------
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// C++ default constructor can NOT contain any code, that might leave
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// ----------------------------------------------------------------------------
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//
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CMPXFileInfoUtility::CMPXFileInfoUtility(): iCurrentControllerUid(NULL)
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    {
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    }
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// Destructor
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CMPXFileInfoUtility::~CMPXFileInfoUtility()
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    {
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    MPX_DEBUG1("CMPXFileInfoUtility::~CMPXFileInfoUtility()<---");
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    iAudioControllers.ResetAndDestroy();
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    //Reset();
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    // Close all MMF controllers in the cache
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    TPtrHashMapIter<TUint32, RMMFController> iter(iMMFControllers);
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    RMMFController* controller;
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    while((controller = const_cast<RMMFController*>(iter.NextValue())) != NULL)
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    	{
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    	controller->Close();
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    	}
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    iMMFControllers.ResetAndDestroy();
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    iMMFControllers.Close();
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    //delete non cached Helix controller
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    if( iController && ( iCurrentControllerUid == 0x10207B65 ) )
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        {
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        iController->Close();
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        delete iController;
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        iController = NULL;
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        }
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    REComSession::FinalClose();
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    MPX_DEBUG1("CMPXFileInfoUtility::~CMPXFileInfoUtility()--->");
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    }
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// ----------------------------------------------------------------------------
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// Symbian 2nd phase constructor can leave.
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// ----------------------------------------------------------------------------
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//
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void CMPXFileInfoUtility::ConstructL()
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    {
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    CreateAudioFormatsArrayL();
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    }
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// ----------------------------------------------------------------------------
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// Open a file using audio controller
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// ----------------------------------------------------------------------------
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//
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void CMPXFileInfoUtility::OpenFileL(RFile& aFile,
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                                    const TDesC& aMimeType /*= KNullDesC*/)
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    {
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    MPX_DEBUG1("CMPXFileInfoUtility::OpenFileL()<---");
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    Reset();
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   116
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    HBufC* fileNameBuf = HBufC::NewLC(KMaxFileName);
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    TPtr fileName = fileNameBuf->Des();
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    aFile.FullName(fileName);
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   120
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    TUid pluginUid;
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    FindController(fileName, aMimeType, pluginUid);
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    CleanupStack::PopAndDestroy(fileNameBuf);
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   124
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    // Open a new controller
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    OpenControllerL(pluginUid);
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    TMMFMessageDestination dataSource;
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   128
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    TPtrC defaultID(KDefaultContentObject);
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    TBool enableUI = EFalse;
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    //Code taken from TMMFileHandleSource
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    //build custom mmf message packet
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    //based on CMMFileSourceSink::DoCreateFileHandleSourceConfigDataL()
0
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    CBufFlat* buf = CBufFlat::NewL(KMCExpandSize);
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    CleanupStack::PushL(buf);
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    RBufWriteStream stream;
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    stream.Open(*buf);
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    CleanupClosePushL(stream);
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   140
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    TPckgBuf<RFile*> fileptr(&aFile);
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    stream.WriteInt32L(KMMFileHandleSourceUid.iUid);
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    stream.WriteL(fileptr);
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    //Code taken from TMMFileHandleSource
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    TInt length = 0;
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    //if (defaultID != NULL)
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    length = defaultID.Length();
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    stream.WriteInt32L(length);
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    //if (length>0)
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    stream.WriteL(defaultID);
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    stream.WriteInt32L(enableUI);
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    stream.CommitL();
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    CleanupStack::PopAndDestroy(&stream);
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    // Add new data source
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    MPX_DEBUG1("CMPXFileInfoUtility::OpenFileL()- AddDataSource()");
0
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    User::LeaveIfError(iController->AddDataSource(KUidMmfFileSource,
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                                                 buf->Ptr(0),
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                                                 dataSource));
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    CleanupStack::PopAndDestroy(buf);
12
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    MPX_DEBUG1("CMPXFileInfoUtility::OpenFileL()--->");
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0
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    }
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// ----------------------------------------------------------------------------
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// Reset file info utility
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// ----------------------------------------------------------------------------
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//
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void CMPXFileInfoUtility::Reset()
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    {
12
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    MPX_DEBUG1("CMPXFileInfoUtility::Reset()<---");
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0
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    if(iController)
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        {
12
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        // This is just for RA, WMA does not use controller 
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        if( iCurrentControllerUid == 0x10207B65 )  // Helix Controller UID
0
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            {
12
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            MPX_DEBUG1("CMPXFileInfoUtility::Reset(), Close Controller - only for RA ");
0
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            iController->Close();
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            delete iController;
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            iController = NULL;
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            }
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        else
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            {
12
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            MPX_DEBUG1("CMPXFileInfoUtility::Reset(), Reset Controller ");
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            iController->Reset();
0
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            }
12
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        }
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    MPX_DEBUG1("CMPXFileInfoUtility::Reset()--->");
0
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    }
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// ----------------------------------------------------------------------------
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// Get the duration of a song
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// ----------------------------------------------------------------------------
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//
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TTimeIntervalMicroSeconds CMPXFileInfoUtility::Duration()
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    {
12
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    MPX_DEBUG1("CMPXFileInfoUtility::Duration()<---");
0
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    TTimeIntervalMicroSeconds duration;
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    TInt err = iController->GetDuration(duration);
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    if(err != KErrNone)
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        {
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        duration = TInt64(0);
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        }
12
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    MPX_DEBUG2("CMPXFileInfoUtility::Duration(), duration = %ld --->", duration );
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0
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    return duration;
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    }
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// ----------------------------------------------------------------------------
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// Get the bit rate of a song
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// ----------------------------------------------------------------------------
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//
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TUint CMPXFileInfoUtility::BitRate()
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    {
12
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    MPX_DEBUG1("CMPXFileInfoUtility::BitRate()<---");
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   225
0
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    RMMFAudioControllerCustomCommands customCommands(*iController);
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    TUint bitRate(0);
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    //Ignore return value, bitRate remain 0 if error
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    customCommands.GetSourceBitRate(bitRate);
12
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    MPX_DEBUG2("CMPXFileInfoUtility::BitRate(), bit rate = %d --->", bitRate);
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0
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    return bitRate;
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    }
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// ----------------------------------------------------------------------------
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// Get the sample rate of a song
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// ----------------------------------------------------------------------------
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//
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TUint CMPXFileInfoUtility::SampleRate()
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    {
12
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    MPX_DEBUG1("CMPXFileInfoUtility::SampleRate()<---");
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0
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    RMMFAudioControllerCustomCommands  customCommands(*iController);
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    TUint sampleRate(0) ;
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    //Ignore return value, sampleRate remain 0 if error
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    customCommands.GetSourceSampleRate(sampleRate);
12
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    MPX_DEBUG2("CMPXFileInfoUtility::SampleRate(), sample rate = %d --->", sampleRate);
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0
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    return sampleRate;
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    }
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// ----------------------------------------------------------------------------
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// Find a controller based on mime type, then file name
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// ----------------------------------------------------------------------------
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void CMPXFileInfoUtility::FindController(const TDesC& aFileName,
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                                         const TDesC& aMimeType,
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                                         TUid& aUid)
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    {
12
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    MPX_DEBUG1("CMPXFileInfoUtility::FindControllerL()<---");
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   264
    
0
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   265
    TBool found(EFalse);
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    TInt i(0);
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    TInt j(0);
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   268
    TInt count = iAudioControllers.Count();
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    // try with MIME type
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   271
    if (aMimeType.Length() > 0)
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        {
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   273
        TBuf8<KMaxDataTypeLength> mimeType;
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   274
        mimeType.Copy(aMimeType);
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        for (i = 0 ; !found && i < count; i++)
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            {
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            RMMFFormatImplInfoArray formats =
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                        iAudioControllers[i]->PlayFormats();
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   279
                for (j = 0; j < formats.Count() ; j++)
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   280
                    {
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   281
                    if (formats[j]->SupportsMimeType(mimeType))
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                        {
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                        aUid = iAudioControllers[i]->Uid();
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                        found = ETrue;
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                        break;
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   286
                        }
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   287
                    }
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            }
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   289
        }
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   290
    // try file extension
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   291
    if (!found)
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   292
        {
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        TParsePtrC parser(aFileName);
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   294
        TBuf8<KMaxFileName> fileExtension;
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   295
        fileExtension.Copy(parser.Ext());
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   296
        for (i = 0 ; !found && i < count; i++)
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   297
            {
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   298
            RMMFFormatImplInfoArray formats =
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   299
                    iAudioControllers[i]->PlayFormats();
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   300
            for (j = 0; j < formats.Count() ; j++)
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   301
                {
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   302
                if (formats[j]->SupportsFileExtension(fileExtension))
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   303
                    {
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                    aUid = iAudioControllers[i]->Uid();
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   305
                    found = ETrue;
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   306
                    break;
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   307
                    }
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   308
                }
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   309
            }
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   310
        }
12
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diff changeset
   311
    
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   312
    MPX_DEBUG1("CMPXFileInfoUtility::FindControllerL()--->");
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   313
    
0
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   314
    }
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   315
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// ----------------------------------------------------------------------------
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   317
// Open a controller based on file name
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   318
// The Controller Framework APIs are made of three distinct areas: choosing a
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diff changeset
   319
// controller plugin, loading and controlling a controller plugin, and custom
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diff changeset
   320
// commands.
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   321
// ----------------------------------------------------------------------------
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   322
void CMPXFileInfoUtility::OpenControllerL(const TUid& aUid)
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   323
    {
12
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   324
    MPX_DEBUG1("CMPXFileInfoUtility::OpenControllerL()<---");
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diff changeset
   325
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   326
    // RA does not allow controller caching
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diff changeset
   327
    if( aUid.iUid == 0x10207B65 )  // RA Controller Uid
0
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   328
        {
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   329
         iCurrentControllerUid = aUid.iUid;
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   330
         TMMFPrioritySettings prioritySettings;
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   331
         prioritySettings.iPriority = EMdaPriorityNormal;
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   332
         prioritySettings.iPref = EMdaPriorityPreferenceTimeAndQuality;
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parents:
diff changeset
   333
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diff changeset
   334
         iController = new (ELeave) RMMFController;
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diff changeset
   335
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   336
         // Controller loading
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diff changeset
   337
         User::LeaveIfError(iController->Open(aUid, prioritySettings));  
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diff changeset
   338
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   339
         iCurrentControllerUid = aUid.iUid;
12
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diff changeset
   340
         MPX_DEBUG1("CMPXFileInfoUtility::OpenControllerL(), RA Controller open --->");
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diff changeset
   341
         
0
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diff changeset
   342
         return;
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parents:
diff changeset
   343
        }
12
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   344
     
0
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   345
    // check if we already have controller open for this UID in the cache
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   346
     RMMFController* controller = const_cast<RMMFController*>(iMMFControllers.Find(aUid.iUid));
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   347
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   348
    if(!controller)
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   349
	    {
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   350
	    // Controller not found from the cache
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   351
	   	
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   352
    	// Allocate and open new controller for this UID
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   353
    	controller = new (ELeave) RMMFController;
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   354
    	CleanupStack::PushL(controller);
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   355
    	
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   356
    	TUint32* key = new (ELeave) TUint32(aUid.iUid);
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   357
    	CleanupStack::PushL(key);
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   358
    	
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   359
        // Now instantiate the first controller in the array
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   360
        TMMFPrioritySettings prioritySettings;
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   361
        prioritySettings.iPriority = EMdaPriorityNormal;
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   362
        prioritySettings.iPref = EMdaPriorityPreferenceTimeAndQuality;
0
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   363
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   364
	    // Try to open controller
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   365
	    User::LeaveIfError(controller->Open(aUid,
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   366
	                       prioritySettings));
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   367
	    
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   368
	    iMMFControllers.InsertL(key, controller);
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   369
	    
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   370
	    // iMMFController owns the objects now
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   371
	    CleanupStack::Pop(2);
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   372
	    
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   373
	    }
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   374
	
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   375
	iController = controller;
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   376
	iCurrentControllerUid = aUid.iUid;
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   377
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   378
    MPX_DEBUG1("CMPXFileInfoUtility::OpenControllerL()--->");
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   379
0
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   380
    }
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   381
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   382
// -----------------------------------------------------------------------------
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   383
// CMPXFileInfoUtility::CreateAudioFormatsArrayL
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   384
// -----------------------------------------------------------------------------
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   385
//
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   386
void CMPXFileInfoUtility::CreateAudioFormatsArrayL()
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   387
    {
12
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   388
    MPX_DEBUG1("CMPXFileInfoUtility::CreateAudioFormatsArrayL()<---");
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diff changeset
   389
    
0
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   390
    CMMFControllerPluginSelectionParameters* cSelect =
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   391
            CMMFControllerPluginSelectionParameters::NewLC();
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   392
    CMMFFormatSelectionParameters* fSelect =
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   393
            CMMFFormatSelectionParameters::NewLC();
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diff changeset
   394
    // Set the play and record format selection parameters to be blank.
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   395
    // - format support is only retrieved if requested.
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   396
    cSelect->SetRequiredPlayFormatSupportL(*fSelect);
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   397
    // Set the media ids
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   398
    RArray<TUid> mediaIds;
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   399
    CleanupClosePushL(mediaIds);
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diff changeset
   400
    User::LeaveIfError(mediaIds.Append(KUidMediaTypeAudio));
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diff changeset
   401
    // Get plugins that supports audio only
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diff changeset
   402
    cSelect->SetMediaIdsL( mediaIds,
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diff changeset
   403
            CMMFPluginSelectionParameters::EAllowOnlySuppliedMediaIds );
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   404
    // iAudioControllers contains now all audio plugins that
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diff changeset
   405
    // support at least audio.
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parents:
diff changeset
   406
    cSelect->ListImplementationsL(iAudioControllers);
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diff changeset
   407
    // Clean up
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff changeset
   408
    CleanupStack::PopAndDestroy(3); //fSelect, cSelect, mediaIds
12
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diff changeset
   409
    
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff changeset
   410
    MPX_DEBUG1("CMPXFileInfoUtility::CreateAudioFormatsArrayL()--->");
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diff changeset
   411
    
0
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   412
    }
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diff changeset
   413
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   414
// End of File