Matroska Tags
draft-ietf-cellar-tags-01

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Last updated 2019-01-10
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cellar                                                         S. Lhomme
Internet-Draft
Intended status: Standards Track                               M. Bunkus
Expires: July 13, 2019
                                                                 D. Rice
                                                         January 9, 2019

                             Matroska Tags
                       draft-ietf-cellar-tags-01

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.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on July 13, 2019.

Copyright Notice

   Copyright (c) 2019 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/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Lhomme, et al.            Expires July 13, 2019                 [Page 1]
Internet-Draft                  Matroska                    January 2019

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Status of this document . . . . . . . . . . . . . . . . . . .   3
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   5.  Notations and Conventions . . . . . . . . . . . . . . . . . .   3
   6.  Tagging . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     6.1.  Why official tags matter  . . . . . . . . . . . . . . . .   4
     6.2.  Tag translations  . . . . . . . . . . . . . . . . . . . .   4
     6.3.  Tag Formatting  . . . . . . . . . . . . . . . . . . . . .   4
     6.4.  Target types  . . . . . . . . . . . . . . . . . . . . . .   5
     6.5.  Official tags . . . . . . . . . . . . . . . . . . . . . .   7
     6.6.  Nesting Information . . . . . . . . . . . . . . . . . . .   7
     6.7.  Organization Information  . . . . . . . . . . . . . . . .   7
     6.8.  Titles  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.9.  Nested Information  . . . . . . . . . . . . . . . . . . .   8
     6.10. Entities  . . . . . . . . . . . . . . . . . . . . . . . .   9
     6.11. Search and Classification . . . . . . . . . . . . . . . .  11
     6.12. Temporal Information  . . . . . . . . . . . . . . . . . .  13
     6.13. Spacial Information . . . . . . . . . . . . . . . . . . .  13
     6.14. Personal  . . . . . . . . . . . . . . . . . . . . . . . .  14
     6.15. Technical Information . . . . . . . . . . . . . . . . . .  15
     6.16. Identifiers . . . . . . . . . . . . . . . . . . . . . . .  17
     6.17. Commercial  . . . . . . . . . . . . . . . . . . . . . . .  17
     6.18. Legal . . . . . . . . . . . . . . . . . . . . . . . . . .  18
     6.19. Notes . . . . . . . . . . . . . . . . . . . . . . . . . .  18
     7.1.  URIs  . . . . . . . . . . . . . . . . . . . . . . . . . .  19
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  20

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.

Lhomme, et al.            Expires July 13, 2019                 [Page 2]
Internet-Draft                  Matroska                    January 2019

2.  Status of this document

   This document is a work-in-progress specification defining the
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