/*

* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

*

*/

#ifndef CMetaDataParserWMA_H

#define CMetaDataParserWMA_H

// INCLUDES

#include <e32base.h>

#include "MetaDataParser.h"

#include "MetaDataSource.h"

#include "MetaDataFieldContainer.h"

#include "MetaDataField.h"

// CONSTANTS

// CLASS DECLARATION

/**

*  This class implements a WMA metadata parser.

*

*  @lib MetaDataUtility.lib

*  @since 3.0

*/

class CMetaDataParserWMA : public CMetaDataParser

	{

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        * @param aSource Reference to a metadata source

        * @return A pointer to a new instance of this class

        */

        static CMetaDataParserWMA* NewL( CMetaDataSource& aSource );

        /**

        * Destructor.

        */

        virtual ~CMetaDataParserWMA();

    public: // Functions from base classes

        /**

        * From CMetaDataParser

        * Parses the source and if metadata is found, the metadata fields are

        * inserted into the container.

        * @since 3.0

		* @param aWantedFields An array of TMetaDataFieldId's. Empty array is interpreted as all fields.

        * @param aContainer On return, metadata found in aSource is stored here

		* @return void

        */

		void ParseL( const RArray<TMetaDataFieldId>& aWantedFields, CMetaDataFieldContainer& aContainer );

	private:

        /**

        * C++ default constructor.

        */

		CMetaDataParserWMA( CMetaDataSource& aSource );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

		void ConstructL();

		/**

		* Validates whether there is ID3v1 tag in the source or not.

		*/

		TBool ValidateL();

        /**

        * Append title to the container, if found.

        * @return void

		*/

		void GetTitleL();

        /**

        * Append artist to the container, if found.

        * @return void

		*/

		void GetAuthorL();

		/**

        * Append Copyright to the container, if found.

        * @return void

		*/

		void GetCopyrightL();

		/**

        * Append Comment to the container, if found.

        * @return void

		*/

		void GetCommentL();

		/**

        * Append jpeg picture to the container, if found.

        * @return void

		*/

		void GetJpegL();

		/**

        * Append duration to the container, if found.

        * @return void

		*/

		void GetDurationL();

		/**

        * Parses all entries in Content Description Object

        * @return void

		*/

		void ParseContentDescriptionObject();

		/**

        * Parses all entries in Extended Content Description Object

        * @return void

		*/

		void ParseExtendedContentDescriptionObjectL();

		/**

        * Gets a Extended Content Description Object Entry

        * @param aFieldId the field to parse

        * @param aOffset offset at which to find the field

        * @return void

		*/

		TBool GetExtContDesEntryL(TMetaDataFieldId aFieldId, TInt aOffset);

        /**

        * Converts to unicode.

		* @param aDesc Source to be converted to unicode.

		* @param aUnicode Contains the converted unicode on return.

        * @return KErrNone if successful, otherwise one of the system errors.

		*/

		TInt ConvertToUnicodeL( const TDesC8& aDesc, TDes16& aUnicode );

		/**

        * Formats Global UID

        * @return void

		*/

 		void FormatGUID(TDes8 &aGUID);

		/**

        * Descriptor to 64 bit integer conversion

        * @return void

		*/

		TInt64 ConvertToInt64(TDesC8& aDes);

		/**

        * Descriptor to 32 bit integer conversion

        * @return void

		*/

		TInt ConvertToInt32(TDesC8& aDes);

		/**

        * Descriptor to 16 bit integer conversion

        * @return void

		*/

		TInt ConvertToInt16(TDesC8& aDes);

		/**

        * 8 bit Descriptor to 16 bit Descriptor conversion

        * @return void

		*/

		void ConvertDes8toDes16(const TDesC8& aDes8,TDes16& aDes16);

		/**

        * Parses all entries in Header Extension Object

        * @return void

		*/

		void ParseHeaderExtensionObjectL();

		/**

        * Parses all entries in Metadata Library Object

        * @return void

		*/

		void ParseMetadataLibraryObjectL();

	private:	// Data

		// Metadata source

		CMetaDataSource& iSource;

		// Header data

		HBufC8* iHeaderData;

		// Character Set Id used during Unicode conversion

    	TUint iCharacterSetId;

		// offset of Content Description Object

		TInt iContentDescriptionOffset;

		// offset of File Properties Object

		TInt iFilePropertiesOffset;

		// offset of Extended Content Description Object

		TInt iExtendedContentDescriptionOffset;

		// offset of Header Extension Object

		TInt iHeaderExtensionOffset;

		TInt64 iHeaderExtensionObjectSize;

		// offset of Metadata Library Object

		TInt iMetadataLibraryOffset;

		TInt64 iMetadataLibraryObjectSize;

		TInt iMetadataLibraryDescriptionCount;

		TInt iExtendedContentDescriptionCount;

		TInt iAlbumTitleOffset;

		TInt iPictureOffset;

		TInt iTextOffset;

		TInt iComposerOffset;

		TInt iGenreOffset;

		TInt iYearOffset;

		TInt iOriginalArtistOffset;

		TInt iTrackNumberOffset;

		TInt iUniqueFileIdentifierOffset;

		TInt iAudioFileURLOffset;

		TInt iSharedUserRatingOffset;

		TInt iDateOffset;

		TInt iLyricsOffset;

	#ifdef __WINDOWS_MEDIA

		TInt iProviderOffset;

	#endif

		TInt iTitleLength;

		TInt iAuthorLength;

		TInt iCopyrightLength;

		TInt iDescriptionLength;

		TInt iRatingLength;

		TBool iContentDescriptionObjectExists;

		TBool iFilePropertiesObjectExists;

		TBool iExtendedContentDescriptionObjectExists;

		TBool iHeaderExtensionObjectExists;

		TBool iMetadataLibraryObjectExists;

		TBool iMetadatLibraryObjectJpegExists;

    };

#endif      // CMetaDataParserWMA_H

// End of File