IPTC Video Metadata - Draft 2, June 2015
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IPTC - International Press Telecommunications Councilwww.iptc.org
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The IPTC is the global standards body of the news media. We provide the technical foundation for the news ecosystem.
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IPTC Video Metadata Initiative - Draft #2, June 2015
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(note: this document can only be viewed and printed but not edited)
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Background and Goals
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The area of video is rich in standards for encoding the moving images and for embedding the encoded video/audio data plus metadata into files. Also several sets of metadata fields exist.
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For many video businesses metadata describing what can be seen and heard in a video, sharing rights related information plus administrative data like dates and involved persons is essential. Such businesses suffer from this rich set of standards as they support the same use case by different and not interoperable technical means. And the user experience is confusing: metadata for the same purpose may have different names, one standard is supporting a property for a requested use, the next one not. This does not allow to set up identical workflows for different technical types of video resources, this raises the threat of losing metadata in a
workflow.
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The IPTC Video Metadata Initative tries to solve that by ...
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* defining a set of metadata properties, each one with a specific name and clearly described semantics. These properties should not be new ones but a selection of the currently most commonly used.
* by defining how theses properties can be expressed in a machine readable way by different metadata technologies covering different purposes.
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The advantages of this approach are …
* having a single set of metadata properties regardless of the technology to implement it. This allows to define a consistent workflow for the metadata management across technical boundaries
* having different technical solutions for the key goal to store and exchange metadata in a safe and reliable way.
These are good reasons why this new specification adds value.
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You are invited to submit your comments to IPTC
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Persons familiar with video metadata schemas are invited to post comment by using this web form:
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https://www.surveymonkey.com/s/iptc-videometadata-draft2
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This form for comments is open until 31 August 2015.
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Any enquries about the IPTC Video Metadata Initative should be sent to:office@iptc.org
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You are invited to test the proposed Video Metadata
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You may download an Excel document which includes a sheet with all proposed properties and free space to fill in values from your business. You may copy the sheet as required for metadata about the video as a whole and metadata about clips or sequences inside it. Download the Excel file by this link:
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https://www.iptc.org/std-dev/videometadata/IPTC-VideoMetadata-Draft2-June2015-TESTSHEET.xlsx
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Design of Draft #2
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** Proposed Propererties sheet
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The set of metadata properties includes:
* about 20 properties describing what can be seen and heard in the video
* about 10 properties providing rights related information
* about 5 properties for administrative purposes
* about 25 properties covering technical characteristics
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For each of the properties a name, a definition of its semantics, a basic data type and a definition how often it may occur in the metadata about a piece of video are defined.
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As technical implementations of all of these properties are proposed:
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* the EBUcore XML Schema to cover the expression by XML documents and as this XML Schema has a corresponding ontology this kind of expression could be covered toohttps://tech.ebu.ch/docs/tech/tech3293.pdf
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* the XMP standard to cover embedding metadata into binary video files and to use properties manly from the Dublin Core schemahttp://www.adobe.com/products/xmp.html
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But these two proposals are not exclusive as this set of metadata can be implemented by any digital asset management system with a flexible definition of metadata.
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Further the IPTC Video Metadata Initative plans to map each proposed property to one with corresponding semantics of the widely used existing video standards.
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** Qualifier Vocabulary
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Many of the technical implementations of EBUcore and XMP are using a generic property plus a qualifier or role attribute refining its semantics. This vocabulary proposes identified terms to be used as such a qualifier.
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Copyright 2015 IPTC - www.iptc.org
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This document is published under the Creative Commons Attribution 4.0 license - see the full license agreement at http://creativecommons.org/licenses/by/4.0/.
By obtaining, using and/or copying this document, you (the licensee) agree that you have read, understood, and will comply with the terms and conditions of the license.
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Introduction
Proposed Properties
Qualifier Vocabulary