RTP Payload Format for Essential Video Coding (EVC)
draft-ietf-avtcore-rtp-evc-00
avtcore S. Zhao
Internet-Draft S. Wenger
Intended status: Standards Track Tencent
Expires: 11 June 2021 8 December 2020
RTP Payload Format for Essential Video Coding (EVC)
draft-ietf-avtcore-rtp-evc-00
Abstract
This memo describes an RTP payload format for the video coding
standard ISO/IEC International Standard 23094-1 [ISO23094-1], also
known as Essential Video Coding [EVC] and developed by ISO/IEC
JTC1/SC29/WG11. The RTP payload format allows for packetization of
one or more Network Abstraction Layer (NAL) units in each RTP packet
payload as well as fragmentation of a NAL unit into multiple RTP
packets. The payload format has wide applicability in
videoconferencing, Internet video streaming, and high-bitrate
entertainment-quality video, among other applications.
Status of This Memo
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This Internet-Draft will expire on 11 June 2021.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Overview of the EVC Codec . . . . . . . . . . . . . . . . 3
1.1.1. Coding-Tool Features (informative) . . . . . . . . . 4
1.1.2. Systems and Transport Interfaces . . . . . . . . . . 6
1.1.3. Parallel Processing Support (informative) . . . . . . 8
1.1.4. NAL Unit Header . . . . . . . . . . . . . . . . . . . 8
1.2. Overview of the Payload Format . . . . . . . . . . . . . 9
2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Definitions and Abbreviations . . . . . . . . . . . . . . . . 10
3.1. Definitions . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.1. Definitions from the EVC Specification . . . . . . . 10
3.1.2. Definitions Specific to This Memo . . . . . . . . . . 12
3.2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 13
4. RTP Payload Format . . . . . . . . . . . . . . . . . . . . . 14
4.1. RTP Header Usage . . . . . . . . . . . . . . . . . . . . 15
4.2. Payload Header Usage . . . . . . . . . . . . . . . . . . 16
4.3. Payload Structures . . . . . . . . . . . . . . . . . . . 17
4.3.1. Single NAL Unit Packets . . . . . . . . . . . . . . . 17
4.3.2. Aggregation Packets (APs) . . . . . . . . . . . . . . 18
4.3.3. Fragmentation Units . . . . . . . . . . . . . . . . . 22
4.4. Decoding Order Number . . . . . . . . . . . . . . . . . . 25
5. Packetization Rules . . . . . . . . . . . . . . . . . . . . . 26
6. De-packetization Process . . . . . . . . . . . . . . . . . . 27
7. Payload Format Parameters . . . . . . . . . . . . . . . . . . 29
7.1. Media Type Registration . . . . . . . . . . . . . . . . . 29
7.2. SDP Parameters . . . . . . . . . . . . . . . . . . . . . 29
7.2.1. Mapping of Payload Type Parameters to SDP . . . . . . 29
7.2.2. Usage with SDP Offer/Answer Model . . . . . . . . . . 30
7.2.3. SDP Example . . . . . . . . . . . . . . . . . . . . . 30
8. Use with Feedback Messages . . . . . . . . . . . . . . . . . 30
8.1. Picture Loss Indication (PLI) . . . . . . . . . . . . . . 30
8.2. Full Intra Request (FIR) . . . . . . . . . . . . . . . . 30
9. Security Considerations . . . . . . . . . . . . . . . . . . . 30
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