RTP Payload Format for ISO/IEC 21122 (JPEG XS)
draft-ietf-payload-rtp-jpegxs-04
avtcore S. Lugan
Internet-Draft A. Descampe
Intended status: Standards Track C. Damman
Expires: January 30, 2021 intoPIX
T. Richter
IIS
A. Willeme
UCL/ICTEAM
July 29, 2020
RTP Payload Format for ISO/IEC 21122 (JPEG XS)
draft-ietf-payload-rtp-jpegxs-04
Abstract
This document specifies a Real-Time Transport Protocol (RTP) payload
format to be used for transporting JPEG XS (ISO/IEC 21122) encoded
video. JPEG XS is a low-latency, lightweight image coding system.
Compared to an uncompressed video use case, it allows higher
resolutions and frame rates, while offering visually lossless
quality, reduced power consumption, and end-to-end latency confined
to a fraction of a frame.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Conventions, Definitions, and Abbreviations . . . . . . . . . 3
3. Media Format Description . . . . . . . . . . . . . . . . . . 4
3.1. Image Data Structures . . . . . . . . . . . . . . . . . . 5
3.2. Codestream . . . . . . . . . . . . . . . . . . . . . . . 5
3.3. Video support box and colour specification box . . . . . 5
3.4. JPEG XS Frame . . . . . . . . . . . . . . . . . . . . . . 6
4. RTP Payload Format . . . . . . . . . . . . . . . . . . . . . 6
4.1. RTP packetization . . . . . . . . . . . . . . . . . . . . 6
4.2. RTP Header Usage . . . . . . . . . . . . . . . . . . . . 8
4.3. Payload Header Usage . . . . . . . . . . . . . . . . . . 10
4.4. Payload Data . . . . . . . . . . . . . . . . . . . . . . 12
4.5. Traffic Shaping and Delivery Timing . . . . . . . . . . . 17
5. Congestion Control Considerations . . . . . . . . . . . . . . 18
6. Payload Format Parameters . . . . . . . . . . . . . . . . . . 18
6.1. Media Type Definition . . . . . . . . . . . . . . . . . . 18
6.2. Mapping to SDP . . . . . . . . . . . . . . . . . . . . . 21
6.2.1. General . . . . . . . . . . . . . . . . . . . . . . . 21
6.2.2. Media type and subtype . . . . . . . . . . . . . . . 22
6.2.3. Traffic shaping . . . . . . . . . . . . . . . . . . . 22
6.2.4. Offer/Answer Considerations . . . . . . . . . . . . . 22
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 23
8. Security Considerations . . . . . . . . . . . . . . . . . . . 23
9. RFC Editor Considerations . . . . . . . . . . . . . . . . . . 24
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 24
10.1. Normative References . . . . . . . . . . . . . . . . . . 24
10.2. Informative References . . . . . . . . . . . . . . . . . 26
10.3. URIs . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 26
1. Introduction
This document specifies a payload format for packetization of JPEG XS
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