Media Type Registration of Payload Formats in the RTP Profile for Audio and Video Conferences
RFC 4856
| Document | Type |
RFC - Proposed Standard
(February 2007; Errata)
Obsoletes RFC 3555
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 4856 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Cullen Jennings | ||
| Send notices to | (None) | ||
Network Working Group S. Casner
Request for Comments: 4856 Packet Design
Obsoletes: 3555 March 2007
Category: Standards Track
Media Type Registration of Payload Formats in the
RTP Profile for Audio and Video Conferences
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The IETF Trust (2007).
Abstract
This document specifies media type registrations for the RTP payload
formats defined in the RTP Profile for Audio and Video Conferences.
Some of these may also be used for transfer modes other than RTP.
Table of Contents
1. Introduction ....................................................2
1.1. IANA Considerations ........................................2
1.2. Terminology ................................................3
2. Registrations for "Audio/Video Profile" .........................3
2.1. Audio Type Registrations ...................................3
2.2. Video Type Registrations ..................................24
3. Changes from RFC 3555 ..........................................25
4. Security Considerations ........................................26
5. References .....................................................27
5.1. Normative References ......................................27
5.2. Informative References ....................................27
Casner Standards Track [Page 1]
RFC 4856 RTP Payload Formats for Audio/Video Profile March 2007
1. Introduction
This document updates the media type registrations initially
specified in RFC 3555 for the Real-time Transport Protocol (RTP)
payload formats defined in the RTP Profile for Audio and Video
Conferences, RFC 3551 [1], as subtypes under the "audio" and "video"
media types. This document does not include media type registrations
for the RTP payload formats that are referenced in RFC 3551 but
defined in other RFCs. The media type registrations for those
payload formats are intended to be updated by including them in
revisions of the individual RFCs defining the payload formats.
The media type registrations specified here conform to the updated
template format and procedures in RFC 4288 [2] and RFC 4855 [3].
This update makes no technical changes in the registrations.
Together with RFC 4855, this document obsoletes RFC 3555.
1.1. IANA Considerations
As a consequence of the generalized applicability of the media types
registry as specified in RFC 4288, some changes in nomenclature are
needed in the RTP Payload Format section of the registry. In the
registry title "RTP Payload Format MIME types" and the introductory
text, "MIME" should be changed to "media". "MIME" should be deleted
from the table headings, leaving just "media type" and "subtype".
This document updates the media type registrations listed below to
conform to the revised registration format specified in RFC 4288 and
RFC 4855, so the reference for these media types should be changed
from RFC 3555 to this document. Some media type registrations
contained in RFC 3555 are omitted from this document; the existing
registrations for those types continue to be valid until updated by
other RFCs. There are no new registrations contained here.
Casner Standards Track [Page 2]
RFC 4856 RTP Payload Formats for Audio/Video Profile March 2007
audio/DVI4
audio/G722
audio/G723
audio/G726-16
audio/G726-24
audio/G726-32
audio/G726-40
audio/G728
audio/G729
audio/G729D
audio/G729E
audio/GSM
audio/GSM-EFR
audio/L8
audio/L16
audio/LPC
audio/PCMA
audio/PCMU
audio/VDVI
video/nv
Media type audio/L16 was initially registered via RFC 2586 for
transports other than RTP. That registration is incorporated here
and augmented with additional information for RTP transport.
1.2. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [4] and
indicate requirement levels for implementations compliant with this
specification.
2. Registrations for "Audio/Video Profile"
In the following sections, the RTP payload formats defined in the RTP
Profile for Audio and Video Conferences, RFC 3551 [1], are registered
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