Extensible Binary Meta Language
draft-ietf-cellar-ebml-16
| The information below is for an old version of the document | |||
|---|---|---|---|
| Document | Type | Active Internet-Draft (cellar WG) | |
| Authors | Steve Lhomme , Dave Rice , Moritz Bunkus | ||
| Last updated | 2020-01-20 (latest revision 2019-12-22) | ||
| Replaces | draft-lhomme-cellar-ebml | ||
| Stream | IETF | ||
| Intended RFC status | Proposed Standard | ||
| Formats | pdf htmlized (tools) htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication (wg milestone: Jun 2019 - Submit specification... ) | |
| Document shepherd | Steven Villereal | ||
| Shepherd write-up | Show (last changed 2018-12-04) | ||
| IESG | IESG state | IESG Evaluation::Revised I-D Needed | |
| Consensus Boilerplate | Yes | ||
| Telechat date |
Needs a YES. Has enough positions to pass. |
||
| Responsible AD | Alexey Melnikov | ||
| Send notices to | Steven Villereal <villereal@gmail.com> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
cellar S. Lhomme
Internet-Draft
Intended status: Standards Track D. Rice
Expires: 24 June 2020
M. Bunkus
22 December 2019
Extensible Binary Meta Language
draft-ietf-cellar-ebml-16
Abstract
This document defines the Extensible Binary Meta Language (EBML)
format as a binary container format designed for audio/video storage.
EBML is designed as a binary equivalent to XML and uses a storage-
efficient approach to build nested Elements with identifiers,
lengths, and values. Similar to how an XML Schema defines the
structure and semantics of an XML Document, this document defines how
EBML Schemas are created to convey the semantics of an EBML Document.
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 24 June 2020.
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
Lhomme, et al. Expires 24 June 2020 [Page 1]
Internet-Draft EBML December 2019
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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Notation and Conventions . . . . . . . . . . . . . . . . . . 4
3. Structure . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Variable Size Integer . . . . . . . . . . . . . . . . . . . . 7
4.1. VINT_WIDTH . . . . . . . . . . . . . . . . . . . . . . . 7
4.2. VINT_MARKER . . . . . . . . . . . . . . . . . . . . . . . 7
4.3. VINT_DATA . . . . . . . . . . . . . . . . . . . . . . . . 7
4.4. VINT Examples . . . . . . . . . . . . . . . . . . . . . . 8
5. Element ID . . . . . . . . . . . . . . . . . . . . . . . . . 9
6. Element Data Size . . . . . . . . . . . . . . . . . . . . . . 11
6.1. Data Size Format . . . . . . . . . . . . . . . . . . . . 11
6.2. Unknown Data Size . . . . . . . . . . . . . . . . . . . . 12
6.3. Data Size Values . . . . . . . . . . . . . . . . . . . . 14
7. EBML Element Types . . . . . . . . . . . . . . . . . . . . . 15
7.1. Signed Integer Element . . . . . . . . . . . . . . . . . 15
7.2. Unsigned Integer Element . . . . . . . . . . . . . . . . 16
7.3. Float Element . . . . . . . . . . . . . . . . . . . . . . 16
7.4. String Element . . . . . . . . . . . . . . . . . . . . . 16
7.5. UTF-8 Element . . . . . . . . . . . . . . . . . . . . . . 16
7.6. Date Element . . . . . . . . . . . . . . . . . . . . . . 17
7.7. Master Element . . . . . . . . . . . . . . . . . . . . . 17
7.8. Binary Element . . . . . . . . . . . . . . . . . . . . . 17
8. EBML Document . . . . . . . . . . . . . . . . . . . . . . . . 18
8.1. EBML Header . . . . . . . . . . . . . . . . . . . . . . . 18
8.2. EBML Body . . . . . . . . . . . . . . . . . . . . . . . . 18
9. EBML Stream . . . . . . . . . . . . . . . . . . . . . . . . . 19
10. EBML Versioning . . . . . . . . . . . . . . . . . . . . . . . 19
10.1. EBML Header Version . . . . . . . . . . . . . . . . . . 19
10.2. EBML Document Version . . . . . . . . . . . . . . . . . 19
11. Elements semantic . . . . . . . . . . . . . . . . . . . . . . 19
11.1. EBML Schema . . . . . . . . . . . . . . . . . . . . . . 19
11.1.1. EBML Schema Example . . . . . . . . . . . . . . . . 20
11.1.2. <EBMLSchema> Element . . . . . . . . . . . . . . . . 21
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