author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 25 May 2010 13:16:00 +0300 | |
branch | RCL_3 |
changeset 18 | 2eb3b066cc7d |
parent 0 | 71ca22bcf22a |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2004 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 implements an MP4 metadata parser |
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* |
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*/ |
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#ifndef CMETADATAPARSERMP4_H |
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#define CMETADATAPARSERMP4_H |
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// INCLUDES |
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#include <e32base.h> |
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#include <mp4lib.h> |
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#include "MetaDataParser.h" |
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#include "MetaDataFieldContainer.h" |
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#include "MetaDataField.h" |
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// CONSTANTS |
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const TInt K3gpMetaLength = 256; |
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// CLASS DECLARATION |
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/** |
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* This class implements an MP4 metadata parser. |
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* |
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* @lib MetaDataUtility.lib |
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* @since 3.0 |
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*/ |
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class CMetaDataParserMP4 : public CMetaDataParser |
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{ |
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public: // Constructors and destructor |
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/** |
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* C++ default constructor. |
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*/ |
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CMetaDataParserMP4(); |
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/** |
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* Destructor. |
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*/ |
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virtual ~CMetaDataParserMP4(); |
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public: // Functions from base classes |
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/** |
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* From CMetaDataParser |
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* Parses the source and if metadata is found, the metadata fields are |
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* inserted into the container. |
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* @since 3.0 |
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* @param aWantedFields An array of TMetaDataFieldId's. Empty array is interpreted as all fields. |
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* @param aContainer On return, metadata found in aSource is stored here |
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* @return void |
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*/ |
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virtual void ParseL( const RArray<TMetaDataFieldId>& aWantedFields, CMetaDataFieldContainer& aContainer ) = 0; |
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public: // New functions |
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/** |
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* Initializes the parser with the specified file. |
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* @since 3.0 |
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* @param aFileName The name of the file |
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* @return void |
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*/ |
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void InitializeFileL( ContentAccess::CData *aData); |
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/** |
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* Initializes the parser with the specified descriptor. |
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* @since 3.0 |
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* @param aDes Source descriptor |
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* @return void |
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*/ |
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void InitializeDesL( const TDesC8& aDes ); |
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/** |
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* Validates whether this is valid MP4 source or not. |
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* @since 3.0 |
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* @return ETrue if valid, EFalse otherwise. |
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*/ |
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virtual TBool ValidateL() = 0; |
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/** |
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* Translates error code from MP4 library to one of System Errors. |
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* @since 3.0 |
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* @param aError error code from MP4 library |
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* @return System error |
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*/ |
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TInt TranslateMP4Err( MP4Err aError ); |
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/** |
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* Reads the duration from the source and appends it to the container. |
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* @since 3.0 |
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* @param aSize Size of the data. |
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* @return void |
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*/ |
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void GetDurationL(TMetaDataFieldId aFieldId ); |
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/** |
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* Converts to unicode. |
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* @param aDesc Source to be converted to unicode. |
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* @param aUnicode Contains the converted unicode on return. |
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* @return The number of unconverted characters left at the end of the input descriptor |
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* (e.g. because the output descriptor is not long enough to hold all the text), |
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* or one of the error values defined in TError. |
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*/ |
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TInt ConvertToUnicodeL( const TDesC8& aDesc, TDes16& aUnicode ); |
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protected: // Data |
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// MP4 library handle |
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MP4Handle iMP4Handle; |
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}; |
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#endif // CMETADATAPARSERMP4_H |
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// End of File |