The MXF Book
Written by a top team of industry professionals, this must-have guide introduces and explains the MXF standard, helps engineers write MXF applications, and explains the reasons behind many details of the specification documents.
TABLE OF CONTENTS The MXF Book
Chapter 11: DMS-1 Metadata Scheme
Jim Wilkinson
Introduction
The MXF specification provides the mechanism by which a descriptive metadata (DM) framework can be plugged into the structural metadata part of the header metadata. These DM frameworks are a part of the header metadata and provide additional editorial value to an MXF file. The DMS-1 specification is defined in SMPTE 380M. Further information on using descriptive metadata in MXF is given in engineering guideline document SMPTE EG42.
A Short History of DMS-1
The descriptive metadata scheme, now known as DMS-1, started life as a short list of metadata items that were needed to replicate roughly the equivalent of a tape label. Inevitably, this list grew rapidly in an attempt to create a common initial framework of metadata items that might be implemented by manufacturers in order to achieve interoperability,
Work on defining a data structure for descriptive metadata within MXF started in February, 2000. This structure provided for production, clip, and scene sets. Production metadata applies to the production as a whole, clip metadata applies to the content as it was created or captured (e.g., where a scene was actually shot), whereas scene metadata applies to the editorial intent of individual scenes (e.g., where a scene is set).
By 2001, the three sets had become collections of sets (now known as frameworks) with the collections sharing several sets of the same kind in common relationships. During the period 2001 2002 there were several meetings focused on harmonization with the metadata...
Copyright Elsevier Inc. 2006 under license agreement with Books24x7
