Matroska Media Container Tag Specifications
draft-ietf-cellar-tags-06
cellar S. Lhomme
Internet-Draft
Intended status: Informational M. Bunkus
Expires: 14 October 2021
D. Rice
12 April 2021
Matroska Media Container Tag Specifications
draft-ietf-cellar-tags-06
Abstract
This document defines the Matroska tags, namely the tag names and
their respective semantic meaning.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on 14 October 2021.
Copyright Notice
Copyright (c) 2021 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
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Please review these documents carefully, as they describe your rights
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Status of this document . . . . . . . . . . . . . . . . . . . 3
3. Security Considerations . . . . . . . . . . . . . . . . . . . 3
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3
5. Notation and Conventions . . . . . . . . . . . . . . . . . . 3
6. Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6.1. Why official tags matter . . . . . . . . . . . . . . . . 4
6.2. Tag Formatting . . . . . . . . . . . . . . . . . . . . . 4
6.3. Target types . . . . . . . . . . . . . . . . . . . . . . 5
6.4. Official tags . . . . . . . . . . . . . . . . . . . . . . 7
6.5. Nesting Information . . . . . . . . . . . . . . . . . . . 7
6.6. Organization Information . . . . . . . . . . . . . . . . 8
6.7. Titles . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.8. Nested Information . . . . . . . . . . . . . . . . . . . 9
6.9. Entities . . . . . . . . . . . . . . . . . . . . . . . . 10
6.10. Search and Classification . . . . . . . . . . . . . . . . 13
6.11. Temporal Information . . . . . . . . . . . . . . . . . . 15
6.12. Spatial Information . . . . . . . . . . . . . . . . . . . 15
6.13. Personal . . . . . . . . . . . . . . . . . . . . . . . . 17
6.14. Technical Information . . . . . . . . . . . . . . . . . . 17
6.15. Identifiers . . . . . . . . . . . . . . . . . . . . . . . 18
6.16. Commercial . . . . . . . . . . . . . . . . . . . . . . . 20
6.17. Legal . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.18. Notes . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7. Normative References . . . . . . . . . . . . . . . . . . . . 21
8. Informative References . . . . . . . . . . . . . . . . . . . 22
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 22
1. Introduction
Matroska aims to become THE standard of multimedia container formats.
It can store timestamped multimedia data but also chapters and tags.
The "Tag Elements" add important metadata to identify and classify
the information found in a "Matroska Segment". It can tag a whole
"Segment", separate "Track Elements", individual Chapter elements or
"Attachment Elements".
While the Matroska tagging framework allows anyone to create their
own custom tags, it's important to have a common set of values for
interoperability. This document intends to define a set of common
tag names used in Matroska.
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