RTP Payload Format for H.264 Reduced-Complexity Decoding Operation (RCDO) Video
RFC 6185
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RFC - Proposed Standard
(May 2011; No errata)
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2015-10-14
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draft-kristensen-avt-rtp-h264-rcdo
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RFC 6185 (Proposed Standard)
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Gonzalo Camarillo
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Internet Engineering Task Force (IETF) T. Kristensen
Request for Comments: 6185 P. Luthi
Category: Standards Track TANDBERG
ISSN: 2070-1721 May 2011
RTP Payload Format for
H.264 Reduced-Complexity Decoding Operation (RCDO) Video
Abstract
This document describes an RTP payload format for the Reduced-
Complexity Decoding Operation (RCDO) for H.264 Baseline profile
bitstreams, as specified in ITU-T Recommendation H.241. RCDO reduces
the decoding cost and resource consumption of the video processing.
The RCDO RTP payload format is based on the H.264 RTP payload format.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6185.
Copyright Notice
Copyright (c) 2011 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
(http://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
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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.
Kristensen & Luthi Standards Track [Page 1]
RFC 6185 H.264 RCDO RTP Payload May 2011
This document may contain material from IETF Documents or IETF
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material may not have granted the IETF Trust the right to allow
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than English.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions Used in This Document . . . . . . . . . . . . . . 3
3. Media Format Background . . . . . . . . . . . . . . . . . . . 3
4. Payload Format . . . . . . . . . . . . . . . . . . . . . . . . 3
5. Congestion Control Considerations . . . . . . . . . . . . . . 3
6. Payload Format Parameters . . . . . . . . . . . . . . . . . . 3
6.1. Media Type Definition . . . . . . . . . . . . . . . . . . 4
7. Mapping to SDP . . . . . . . . . . . . . . . . . . . . . . . . 19
7.1. Offer/Answer Considerations . . . . . . . . . . . . . . . 20
7.2. Declarative SDP Considerations . . . . . . . . . . . . . . 20
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 20
9. Security Considerations . . . . . . . . . . . . . . . . . . . 20
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 21
11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11.1. Normative References . . . . . . . . . . . . . . . . . . . 21
11.2. Informative References . . . . . . . . . . . . . . . . . . 21
1. Introduction
ITU-T Recommendation H.241 [3] specifies a Reduced-Complexity
Decoding Operation (RCDO) for use with H.264 [2] Baseline profile
bitstreams. It also specifies a bitstream constraint associated with
RCDO and a mechanism for signaling RCDO within the bitstream. The
RCDO signaling indicates that the bitstream conforms to the bitstream
constraint and that the decoder shall apply the RCDO decoding process
to the bitstream.
RCDO for H.264 offers a solution to support higher resolutions at the
same high frame rates used in current implementations. This is
achieved by reducing the processing requirements and thus reducing
the decoding cost/resource consumption of the video processing.
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