javauis/mmapi_qt/baseline/src/cmmaaudiometadatacontrol.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 23 Jun 2010 18:07:10 +0300
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permissions -rw-r--r--
Revision: v2.2.2 Kit: 2010125
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/*
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* Copyright (c) 2002 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:  CMMAAudioMetaDataControl is a concrete class for getting
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*                metadata from an audio media.
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*
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*/
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//  INCLUDE FILES
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#include <logger.h>
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#include "cmmaaudiometadatacontrol.h"
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CMMAAudioMetaDataControl::CMMAAudioMetaDataControl(
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    RMMFController& aController)
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        : iController(aController)
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{
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    LOG(EJavaMMAPI, EInfo, "CMMAAudioMetaDataControl constructor called.");
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}
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TInt CMMAAudioMetaDataControl::KeyCountL()
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{
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    TInt entries = 0;
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    User::LeaveIfError(iController.GetNumberOfMetaDataEntries(entries));
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    return entries;
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}
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HBufC* CMMAAudioMetaDataControl::KeyL(TInt aIndex)
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{
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    CMMFMetaDataEntry* currEntry = NULL;
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    currEntry = iController.GetMetaDataEntryL(aIndex);
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    CleanupStack::PushL(currEntry);
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    HBufC* key = currEntry->Name().AllocL();
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    CleanupStack::PopAndDestroy(); // currEntry
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    return key;
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}
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/*
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 * Get the value of given audio metadata key. The ownership of the created value
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 * (descriptor) is passed to the caller.
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 */
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HBufC* CMMAAudioMetaDataControl::KeyValueL(const TDesC& aKey)
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{
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    LOG(EJavaMMAPI, EInfo, "MMA::CMMAAudioMetaDataControl::GetKeyValueL() called.");
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    HBufC* retVal = NULL;
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    CMMFMetaDataEntry* currEntry = NULL;
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    TInt nEntries = 0;
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    User::LeaveIfError(iController.GetNumberOfMetaDataEntries(nEntries));
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    for (TInt i = 0; i < nEntries; ++i)
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    {
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        currEntry = iController.GetMetaDataEntryL(i);
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        if (0 == aKey.Compare(currEntry->Name()))
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        {
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            CleanupStack::PushL(currEntry);
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            retVal = currEntry->Value().AllocL();
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            CleanupStack::PopAndDestroy(); // currEntry
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            break;
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        }
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        delete currEntry;
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    }
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    User::LeaveIfNull(retVal);
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    return retVal;
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}
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//  END OF FILE