Video Metadata Hub version 1.4 released

Video Metadata Hub explainer diagram

The IPTC Video Metadata Working Group is proud to announce the release of version 1.4 of the group’s standard, Video Metadata Hub.

All changes can be used immediately in Video Metadata Hub use cases, particularly in C2PA assertions (described in our recent post).

Version 1.4 introduces several new properties and several changes to add accessibility properties and to align it more closely with the IPTC Photo Metadata Standard:

New properties:

Content Warning: signals to viewers such as drug references, nudity or violence, and health warnings such as flashing lights.
Digital Source Type: whether the content was created by a digital camera, scanned from film, or created using or with the assistance of a computer.
Review Rating: a third-party review such as a film’s rating on Rotten Tomatoes.
Workflow Rating: equivalent to the XMP rating field, a numeric scale generally used by creators to tag shots/takes/videos that are of higher quality.
Alt Text (Accessibility): Short text describing the video to those who cannot view it.
Extended Description (Accessibility): Longer description more fully describing the purpose and meaning of the video, elaborating on the information given in the Alt Text (Accessibility) property.
Timed Text Link: refers to an external file used for text with timing information using a standard such as WebVTT or W3C Timed Text, usually used for subtitles, closed captions or audio description

Changed properties:

Date Created: modified description to align it with Photo Metadata.
Rating: modified description to make it more specifically about audience content classifications such as MPA ratings
Data Displayed on Screen: changed description.
Keywords: Pluralised label to match the equivalent in Photo Metadata.
Title: changed data type to allow multiple languages
Transcript: changed data type to allow multiple languages
Copyright Year: changed description to add “year of origin of the video”
Embedded Encoded Rights Expression: property label changed from “Rights and Licensing Terms (1)” to clarify and align with Photo Metadata
Linked Encoded Rights Expression: property label changed from “Rights and Licensing Terms (2)” to clarify and align with Photo Metadata
Copyright Owner: label change label from “Rights Owner” to align with Photo Metadata
Source (Supply Chain): Change label and XMP property to align it with Photo Metadata

New property structures:

Qualified Link with Language: used by Times Text Link, specifies an external file along with its role (eg “audio description”) and human language (eg “Spanish”)

Changed property structures:

“Embedded Encoded Rights Expression Structure” changed label from “Embedded Rights Expression Structure” to align with Photo Metadata
“Linked Encoded Rights Expression Structure” changed label from “Linked Rights Expression Structure” to align with Photo Metadata
Data type of “Role” in the “Entity with Role” structure was changed from URI to Text to align with Photo Metadata

The Video Metadata Hub mapping tables also include mappings to the DPP AS-11 and MovieLabs MDDF formats.

The Video Metadata Hub Generator can be used to explore the properties in the standard.