/*

* 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:

*

* Description:  This class implements parsing of ID3v2.2 according to the

*                specification found in www.id3.org. Note that only a selected

*				 frames are supported at this time.

*

*/

#ifndef CMETADATAPARSERID3V22_H

#define CMETADATAPARSERID3V22_H

// INCLUDES

#include "MetaDataParserID3v2.h"

// CLASS DECLARATION

/**

*  This class implements parsing of ID3v2.2.

*

*  @lib MetaDataUtility.lib

*  @since 3.0

*/

class CMetaDataParserID3v22 : public CMetaDataParserID3v2

	{

    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 CMetaDataParserID3v22* NewL( CMetaDataSource& aSource );

        /**

        * Destructor.

        */

        virtual ~CMetaDataParserID3v22();

    public: // Functions from base classes

        /**

        * From CMetaDataParserID3v2

        * This function is called from ParseL for header parsing and data initialization.

		* @return void

        */

		void PrepareToParseL();

        /**

        * From CMetaDataParserID3v2

        * Gets the next field's properties.

		* @param aFieldId Field Id, on return.

		* @param aFrameHeaderSize Frame header size.

		* @param aFrameSize Frame size, on return.

        * @return void

		*/

		void GetNextFieldL( TMetaDataFieldId& aFieldId, TInt& aFrameHeaderSize, TInt& aFrameSize );

        /**

        * From CMetaDataParserID3v2

        * Reads the text information from the source and appends it to the container.

		* @param aFieldId Field Id.

		* @param aSize Size of the data.

        * @return void

		*/

		void GetTextInfoL( TMetaDataFieldId aFieldId, TInt aSize );

        /**

        * From CMetaDataParserID3v2

        * Reads the Genre from the source and appends it to the container.

		* @param aSize Size of the data.

        * @return void

		*/

		void GetGenreL( TInt aSize );

        /**

        * From CMetaDataParserID3v2

        * Reads the year from the source and appends it to the container.

		* @param aSize Size of the data.

        * @return void

		*/

		void GetTextYearL( TInt aSize );

        /**

        * From CMetaDataParserID3v2

        * Reads the comment from the source and appends it to the container.

		* @param aSize Size of the data.

        * @return void

		*/

		void GetCommentL( TInt aSize );

        /**

        * From CMetaDataParserID3v2

        * Reads the Url from the source and appends it to the container.

		* @param aSize Size of the data.

        * @return void

		*/

		void GetUrlL( TInt aSize );

        /**

        * From CMetaDataParserID3v2

        * Reads the Lyrics from the source and appends it to the container.

		* @param aSize Size of the data.

        * @return void

		*/

		void GetUnsyncLyricsL( TInt aSize ); 

		/**

        * From CMetaDataParserID3v2

        * Reads the user defined Url from the source and 

        * appends it to the container.

        * @since 3.0

		* @param aSize Size of the data.

        * @return void

		*/

		void GetUserUrlL( TInt aSize );

        /**

        * From CMetaDataParserID3v2

        * Reads the Jpeg from the source and appends it to the container.

		* @param aSize Size of the data.

        * @return void

		*/

		void GetJpegL( TInt aSize );

		/**

		* From CMetaDataParserID3v2

        * Reads the duration from the source and appends it to the container.

        * @since 3.0

		* @param aSize Size of the data.

        * @return void

		*/

		void GetDurationL( TInt aSize );

		/**

		* From CMetaDataParserID3v2

        * Reads the date from the source and appends it to the container.

        * @since 3.0

		* @param aSize Size of the data.

        * @return void

		*/

		void GetTextDateL( TInt aSize );

		/**

		* From CMetaDataParserID3v2

        * Reads the popularimeter appends it to the container.

        * @since 3.0

		* @param aSize Size of the data.

        * @return void

		*/

		void GetRatingL (TInt aSize);

        /**

        * From CMetaDataParserID3v2

        * Converts to unicode.

		* @param aEncoding Encoding of aDesc.

		* @param aDesc Source to be converted to unicode.

		* @param aUnicode Contains the converted unicode on return.

        * @return The number of unconverted characters left at the end of the input descriptor

        *	(e.g. because the output descriptor is not long enough to hold all the text),

        *	or one of the error values defined in TError.

		*/

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

	private:

        /**

        * C++ default constructor.

        */

		CMetaDataParserID3v22( CMetaDataSource& aSource );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

		void ConstructL();

 	private:	// Data

    };

#endif      // CMETADATAPARSERID3V22_H

// End of File