DEVICE AND METHOD FOR EDITING, AUTHORING, AND RETRIEVING OBJECT-BASED MPEG-4 CONTENTS

摘要

In a device for editing and authoring object-based AV (audio and visual) contents using the MPEG-4 method, an object-based MPEG-4(moving picture experts group 4) contents editing and authoring device (200) comprises: an extensible description generator (120) for receiving either of an MPEG-4 textual format or internal data structure information of object-based MPEG-4 contents, and MPEG-7(moving picture experts group 7) descriptions of the MPEG-4 contents, and generating an XML (extensible markup language) based textual format file including the MPEG-7 descriptions; an extensible description/binary converter for receiving the XML based textual format file including the MPEG-7 descriptions generated by the extensible description generator (120), and generating them as a binary file; and an XML based contents storage unit (110) for storing the XML based textual format file generated by the extensible description generator (120) and the binary file generated by the extensible description/binary converter.