mmserv/metadatautility/Src/MetaDataParserMP4.h
changeset 0 71ca22bcf22a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmserv/metadatautility/Src/MetaDataParserMP4.h	Tue Feb 02 01:08:46 2010 +0200
@@ -0,0 +1,130 @@
+/*
+* 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 an MP4 metadata parser 
+*
+*/
+
+
+
+#ifndef CMETADATAPARSERMP4_H
+#define CMETADATAPARSERMP4_H
+
+// INCLUDES
+#include <e32base.h>
+#include <mp4lib.h>
+
+#include "MetaDataParser.h"
+#include "MetaDataFieldContainer.h"
+#include "MetaDataField.h"
+
+// CONSTANTS
+
+const TInt K3gpMetaLength = 256;
+
+// CLASS DECLARATION
+
+/**
+*  This class implements an MP4 metadata parser.
+*
+*  @lib MetaDataUtility.lib
+*  @since 3.0
+*/
+class CMetaDataParserMP4 : public CMetaDataParser
+	{
+    public:  // Constructors and destructor
+
+        /**
+        * C++ default constructor.
+        */
+		CMetaDataParserMP4();
+
+        /**
+        * Destructor.
+        */
+        virtual ~CMetaDataParserMP4();
+
+    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
+        */
+		virtual void ParseL( const RArray<TMetaDataFieldId>& aWantedFields, CMetaDataFieldContainer& aContainer ) = 0;
+
+    public: // New functions
+
+        /**
+        * Initializes the parser with the specified file.
+        * @since 3.0
+		* @param aFileName The name of the file
+		* @return void
+        */
+		void InitializeFileL( ContentAccess::CData *aData);
+
+        /**
+        * Initializes the parser with the specified descriptor.
+        * @since 3.0
+		* @param aDes Source descriptor
+		* @return void
+        */
+		void InitializeDesL( const TDesC8& aDes );
+
+       	/**
+		* Validates whether this is valid MP4 source or not.
+		* @since 3.0
+		* @return ETrue if valid, EFalse otherwise.
+		*/
+		virtual TBool ValidateL() = 0;
+
+        /**
+        * Translates error code from MP4 library to one of System Errors.
+        * @since 3.0
+        * @param aError error code from MP4 library
+        * @return System error
+        */
+		TInt TranslateMP4Err( MP4Err aError );
+		
+		/**
+        * 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(TMetaDataFieldId aFieldId );
+
+        /**
+        * Converts to unicode.
+		* @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( const TDesC8& aDesc, TDes16& aUnicode );
+		
+		
+ 	protected:	// Data
+
+		// MP4 library handle
+        MP4Handle iMP4Handle;
+    };
+
+#endif      // CMETADATAPARSERMP4_H
+
+// End of File