draft-ietf-rtcweb-sdp-00.txt   draft-ietf-rtcweb-sdp-01.txt 
Network Working Group S. Nandakumar Network Working Group S. Nandakumar
Internet-Draft C. Jennings Internet-Draft C. Jennings
Intended status: Informational Cisco Intended status: Informational Cisco
Expires: March 20, 2016 September 17, 2015 Expires: September 18, 2016 March 17, 2016
SDP for the WebRTC SDP for the WebRTC
draft-ietf-rtcweb-sdp-00 draft-ietf-rtcweb-sdp-01
Abstract Abstract
The Web Real-Time Communication [WebRTC] working group is charged to The Web Real-Time Communication [WebRTC] working group is charged to
provide protocol support for direct interactive rich communication provide protocol support for direct interactive rich communication
using audio, video and data between two peers' web browsers. With in using audio, video and data between two peers' web browsers. With in
the WebRTC framework, Session Description protocol (SDP) [RFC4566] is the WebRTC framework, Session Description protocol (SDP) [RFC4566] is
used for negotiating session capabilities between the peers. Such a used for negotiating session capabilities between the peers. Such a
negotiation happens based on the SDP Offer/Answer exchange mechanism negotiation happens based on the SDP Offer/Answer exchange mechanism
described in [RFC3264]. described in [RFC3264].
skipping to change at page 1, line 44 skipping to change at page 1, line 44
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 20, 2016. This Internet-Draft will expire on September 18, 2016.
Copyright Notice Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
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carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
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the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
skipping to change at page 2, line 43 skipping to change at page 2, line 43
5.2.5. Audio with DTMF Session . . . . . . . . . . . . . . . 23 5.2.5. Audio with DTMF Session . . . . . . . . . . . . . . . 23
5.2.6. One Way Audio/Video Session - Document Camera . . . . 27 5.2.6. One Way Audio/Video Session - Document Camera . . . . 27
5.2.7. Audio, Video Session with BUNDLE Support Unknown . . 31 5.2.7. Audio, Video Session with BUNDLE Support Unknown . . 31
5.2.8. Audio, Video and Data Session . . . . . . . . . . . . 38 5.2.8. Audio, Video and Data Session . . . . . . . . . . . . 38
5.2.9. Audio, Video Session with BUNDLE Unsupported . . . . 43 5.2.9. Audio, Video Session with BUNDLE Unsupported . . . . 43
5.2.10. Audio, Video BUNDLED, but Data (Not BUNDLED) . . . . 47 5.2.10. Audio, Video BUNDLED, but Data (Not BUNDLED) . . . . 47
5.2.11. Audio Only, Add Video to BUNDLE . . . . . . . . . . . 52 5.2.11. Audio Only, Add Video to BUNDLE . . . . . . . . . . . 52
5.3. MultiResolution, RTX, FEC Examples . . . . . . . . . . . 59 5.3. MultiResolution, RTX, FEC Examples . . . . . . . . . . . 59
5.3.1. Sendonly Simulcast Session with 2 cameras and 2 5.3.1. Sendonly Simulcast Session with 2 cameras and 2
encodings per camera . . . . . . . . . . . . . . 59 encodings per camera . . . . . . . . . . . . . . 59
5.3.2. Successful SVC Video Session . . . . . . . . . . . . 65 5.3.2. Successful SVC Video Session . . . . . . . . . . . . 66
5.3.3. Successful Simulcast Video Session with 5.3.3. Successful Simulcast Video Session with
Retransmission . . . . . . . . . . . . . . . . . . . 70 Retransmission . . . . . . . . . . . . . . . . . . . 71
5.3.4. Successful 1-way Simulcast Session with 2 resolutions 5.3.4. Successful 1-way Simulcast Session with 2 resolutions
and RTX - One resolution rejected . . . . . . 74 and RTX - One resolution rejected . . . . . . 76
5.3.5. Simulcast Video Session with Forward Error Correction 79 5.3.5. Simulcast Video Session with Forward Error Correction 80
5.4. Others . . . . . . . . . . . . . . . . . . . . . . . . . 83 5.4. Others . . . . . . . . . . . . . . . . . . . . . . . . . 85
5.4.1. Audio Session - Voice Activity Detection . . . . . . 83 5.4.1. Audio Session - Voice Activity Detection . . . . . . 85
5.4.2. Audio Conference - Voice Activity Detection . . . . . 86 5.4.2. Audio Conference - Voice Activity Detection . . . . . 88
5.4.3. Successful legacy Interop Fallback with bundle-only . 90 5.4.3. Successful legacy Interop Fallback with bundle-only . 92
5.4.4. Legacy Interop with RTP/AVP profile . . . . . . . . . 94 5.4.4. Legacy Interop with RTP/AVP profile . . . . . . . . . 96
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 99 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 101
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 99 7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 101
8. Change Log . . . . . . . . . . . . . . . . . . . . . . . . . 99 8. Change Log . . . . . . . . . . . . . . . . . . . . . . . . . 101
9. Informative References . . . . . . . . . . . . . . . . . . . 101 9. Informative References . . . . . . . . . . . . . . . . . . . 103
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 104 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 107
1. Introduction 1. Introduction
Javascript Session Exchange Protocol(JSEP) [I-D.ietf-rtcweb-jsep] Javascript Session Exchange Protocol(JSEP) [I-D.ietf-rtcweb-jsep]
specifies a generic protocol needed to generate [RFC3264] Offers and specifies a generic protocol needed to generate [RFC3264] Offers and
Answers negotiated between the WebRTC peers for setting up, updating Answers negotiated between the WebRTC peers for setting up, updating
and tearing down a WebRTC session. For this purpose, SDP is used to and tearing down a WebRTC session. For this purpose, SDP is used to
construct [RFC3264] Offers/Answers for describing (media and non- construct [RFC3264] Offers/Answers for describing (media and non-
media) streams as appropriate for the recipients of the session media) streams as appropriate for the recipients of the session
description to participate in the session. description to participate in the session.
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5.3.1. Sendonly Simulcast Session with 2 cameras and 2 encodings per 5.3.1. Sendonly Simulcast Session with 2 cameras and 2 encodings per
camera camera
The SDP below shows Offer/Answer exchange with one audio and two The SDP below shows Offer/Answer exchange with one audio and two
video sources. Each of the video source can be sent at two different video sources. Each of the video source can be sent at two different
resolutions. resolutions.
One video source corresponds to VP8 encoding, while the other One video source corresponds to VP8 encoding, while the other
corresponds to H.264 encoding. corresponds to H.264 encoding.
[I-D.ietf-mmusic-rid] framework is used to further constrain the
media format encodings and map the payload types (PT) to the 'rid'
identifiers.
[I-D.ietf-mmusic-sdp-simulcast] framework identifies the simulcast
streams via their 'rid' identifiers.
bundle-only framework is used along with BUNDLE grouping framework to bundle-only framework is used along with BUNDLE grouping framework to
enable multiplexing of all the 5 streams (1 audio stream + 4 video enable multiplexing of all the 5 streams (1 audio stream + 4 video
streams) over a single RTP Session. streams) over a single RTP Session.
1 Way Successful Simulcast w/BUNDLE 1 Way Successful Simulcast w/BUNDLE
Alice Bob Alice Bob
| | | |
| | | |
| Alice offers 2 sendonly video sources | | Alice offers 2 sendonly video sources |
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| m=video 0 UDP/TLS/RTP/SAVPF 98 100 | bundle-only video line with | | m=video 0 UDP/TLS/RTP/SAVPF 98 100 | bundle-only video line with |
| | port number set to zero | | | port number set to zero |
| c=IN IP4 24.23.204.141 | [RFC4566] | | c=IN IP4 24.23.204.141 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream | | a=msid:ma tb | Identifies RTCMediaStream |
| | ID (ma) and | | | ID (ma) and |
| | RTCMediaStreamTrack ID (tb) | | | RTCMediaStreamTrack ID (tb) |
| a=rtcp:64678 IN IP4 24.23.204.141 | [RFC3605] | | a=rtcp:64678 IN IP4 24.23.204.141 | [RFC3605] |
| a=mid:m1 | [RFC5888] Video m=line part | | a=mid:m1 | [RFC5888] Video m=line part |
| | of BUNDLE group | | | of BUNDLE group |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=imageattr:98 [x=1280,y=720] | [RFC6236]Camera-1,Encoding- |
| | 1 Resolution |
| a=fmtp:98 max-fr=30 | [RFC4566] | | a=fmtp:98 max-fr=30 | [RFC4566] |
| a=imageattr:100 [x=640,y=480] | [RFC6236] | | a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] |
| | Camera-1,Encoding-2 |
| | Resolution |
| a=fmtp:100 max-fr=15 | [RFC4566] | | a=fmtp:100 max-fr=15 | [RFC4566] |
| a=simulcast: send 98;100 | [I-D.ietf-mmusic-sdp-simulc | | a=rid:1 send pt=98;max-width=1280 | [I-D.ietf-mmusic-rid] 1:1 |
| ;max-height=720; | rid mapping to payload type |
| | and specify resolution |
| | constraints |
| a=rid:2 send pt=100;max-width=640 | [I-D.ietf-mmusic-rid] 1:1 |
| ;max-height=480; | rid mapping to payload type |
| | and specify resolution |
| | constraints |
| a=simulcast: send 1;~2 | [I-D.ietf-mmusic-sdp-simulc |
| | ast] Alice can send 2 | | | ast] Alice can send 2 |
| | resolutions | | | resolutions identified by |
| | the 'rid' identifiers Also, |
| | the second stream is |
| | initially paused. |
| a=ssrc:12345 | [RFC5576] [RFC7022] | | a=ssrc:12345 | [RFC5576] [RFC7022] |
| cname:axzo1278npDlAzM73 | Camera-1,Encoding-1 SSRC | | cname:axzo1278npDlAzM73 | Camera-1,Encoding-1 SSRC |
| | with Session CNAME | | | with Session CNAME |
| a=ssrc:45678 | [RFC5576] [RFC7022] | | a=ssrc:45678 | [RFC5576] [RFC7022] |
| cname:axzo1278npDlAzM73 | Camera-1,Encoding-2 SSRC | | cname:axzo1278npDlAzM73 | Camera-1,Encoding-2 SSRC |
| | with Session CNAME | | | with Session CNAME |
| a=sendonly | [RFC3264] - Send only video | | a=sendonly | [RFC3264] - Send only video |
| | stream | | | stream |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle |
| | -negotiation] |
| a=rtcp-fb:98 nack | [RFC5104] | | a=rtcp-fb:98 nack | [RFC5104] |
| a=rtcp-fb:98 nack pli | [RFC5104] | | a=rtcp-fb:98 nack pli | [RFC5104] |
| a=rtcp-fb:98 ccm fir | [RFC5104] | | a=rtcp-fb:98 ccm fir | [RFC5104] |
| a=rtcp-fb:100 nack | [RFC5104] | | a=rtcp-fb:100 nack | [RFC5104] |
| a=rtcp-fb:100 nack pli | [RFC5104] | | a=rtcp-fb:100 nack pli | [RFC5104] |
| a=rtcp-fb:100 ccm fir | [RFC5104] | | a=rtcp-fb:100 ccm fir | [RFC5104] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
| m=video 0 UDP/TLS/RTP/SAVPF 101 102 | bundle-only video line with | | m=video 0 UDP/TLS/RTP/SAVPF 101 102 | bundle-only video line with |
| | port number set to zero | | | port number set to zero |
| c=IN IP4 24.23.204.141 | [RFC4566] | | c=IN IP4 24.23.204.141 | [RFC4566] |
| a=msid:ma tc | Identifies RTCMediaStream | | a=msid:ma tc | Identifies RTCMediaStream |
| | ID (ma) and | | | ID (ma) and |
| | RTCMediaStreamTrack ID (tc) | | | RTCMediaStreamTrack ID (tc) |
| a=rtcp:64678 IN IP4 24.23.204.141 | [RFC3605] | | a=rtcp:64678 IN IP4 24.23.204.141 | [RFC3605] |
| a=mid:m2 | [RFC5888] Video m=line part | | a=mid:m2 | [RFC5888] Video m=line part |
| | of BUNDLE group | | | of BUNDLE group |
| a=rtpmap:101 H264/90000 | [RFC3984] | | a=rtpmap:101 H264/90000 | [RFC3984] |
| a=rtpmap:102 H264/90000 | [RFC3984] | | a=rtpmap:102 H264/90000 | [RFC3984] |
| a=fmtp:101 profile-level-id=4d0028 | [RFC3984]Camera-2,Encoding- | | a=fmtp:101 profile-level-id=42401f | [RFC3984]Camera-2,Encoding- |
| ;packetization-mode=1;max-fr=30 | 1 Resolution | | ;packetization-mode=0;max-fr=30 | 1 |
| a=fmtp:102 profile-level-id=4d0028 | [RFC3984]Camera-2,Encoding- | | a=fmtp:102 profile-level-id=42401f | [RFC3984]Camera-2,Encoding- |
| ;packetization-mode=1;max-fr=15 | 2 Resolution | | ;packetization-mode=1;max-fr=15 | 2 |
| a=simulcast: send 101;102 | [I-D.ietf-mmusic-sdp-simulc | | a=rid:3 send pt=101;max-width=1280 | [I-D.ietf-mmusic-rid] 1:1 |
| | ast] | | ;max-height=720; | rid mapping to payload type |
| | and specify resolution |
| | constraints |
| a=rid:4 send pt=102;max-width=640 | [I-D.ietf-mmusic-rid] 1:1 |
| ;max-height=360; | rid mapping to payload type |
| | and specify resolution |
| | constraints |
| a=simulcast: send 3;4 | [I-D.ietf-mmusic-sdp-simulc |
| | ast] Alice can send 2 |
| | resolutions identified by |
| | the 'rid' identifiers |
| a=ssrc:67890 | [RFC5576] [RFC7022] | | a=ssrc:67890 | [RFC5576] [RFC7022] |
| cname:axzo1278npDlAzM73 | Camera-2,Encoding-1 SSRC | | cname:axzo1278npDlAzM73 | Camera-2,Encoding-1 SSRC |
| | with Session CNAME | | | with Session CNAME |
| a=ssrc:56789 | [RFC5576] [RFC7022] | | a=ssrc:56789 | [RFC5576] [RFC7022] |
| cname:axzo1278npDlAzM73 | Camera-2,Encoding-2 SSRC | | cname:axzo1278npDlAzM73 | Camera-2,Encoding-2 SSRC |
| | with Session CNAME | | | with Session CNAME |
| a=sendonly | [RFC3264] - Send only video | | a=sendonly | [RFC3264] - Send only video |
| | stream | | | stream |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle |
| | -negotiation] |
| a=rtcp-fb:101 nack | [RFC5104] | | a=rtcp-fb:101 nack | [RFC5104] |
| a=rtcp-fb:101 nack pli | [RFC5104] | | a=rtcp-fb:101 nack pli | [RFC5104] |
| a=rtcp-fb:101 ccm fir | [RFC5104] | | a=rtcp-fb:101 ccm fir | [RFC5104] |
| a=rtcp-fb:102 nack | [RFC5104] | | a=rtcp-fb:102 nack | [RFC5104] |
| a=rtcp-fb:102 nack pli | [RFC5104] | | a=rtcp-fb:102 nack pli | [RFC5104] |
| a=rtcp-fb:102 ccm fir | [RFC5104] | | a=rtcp-fb:102 ccm fir | [RFC5104] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+-------------------------------------+-----------------------------+ +-------------------------------------+-----------------------------+
Table 26: 5.3.1 SDP Offer Table 26: 5.3.1 SDP Offer
skipping to change at page 64, line 17 skipping to change at page 64, line 35
| | port | | | port |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream | | a=msid:ma tb | Identifies RTCMediaStream |
| | ID (ma) and | | | ID (ma) and |
| | RTCMediaStreamTrack ID (tb) | | | RTCMediaStreamTrack ID (tb) |
| a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] |
| a=mid:m1 | [RFC5888] Video m=line part | | a=mid:m1 | [RFC5888] Video m=line part |
| | of BUNDLE group | | | of BUNDLE group |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=imageattr:98 [x=1280,y=720] | [RFC6236]Camera-1,Encoding- |
| | 1 Resolution |
| a=fmtp:98 max-fr=30 | [RFC4566] | | a=fmtp:98 max-fr=30 | [RFC4566] |
| a=imageattr:100 [x=640,y=480] | [RFC6236] |
| | Camera-1,Encoding-2 |
| | Resolution |
| a=fmtp:100 max-fr=15 | [RFC4566] | | a=fmtp:100 max-fr=15 | [RFC4566] |
| a=rid:1 recv pt=98;max-width=1280 | [I-D.ietf-mmusic-rid] Bob |
| ;max-height=720; | accepts the offered payload |
| | format constraints |
| a=rid:2 recv pt=100;max-width=640 | [I-D.ietf-mmusic-rid] Bob |
| ;max-height=480; | accepts the offered payload |
| | format constraints |
| a=simulcast: recv 1;2 | [I-D.ietf-mmusic-sdp-simulc |
| | ast] Bob accepts the |
| | offered simulcast streams |
| | and removes the paused |
| | state of stream with 'rid' |
| | value 2. |
| a=recvonly | [RFC3264] - receive only | | a=recvonly | [RFC3264] - receive only |
| | video stream | | | video stream |
| a=simulcast: recv 98;100 | [I-D.ietf-mmusic-sdp-simulc |
| | ast] |
| a=ssrc:54321 | [RFC5576] | | a=ssrc:54321 | [RFC5576] |
| cname:y8/C90alEocUG1f0fcg | | | cname:y8/C90alEocUG1f0fcg | |
| a=ice-ufrag:c300d85b | [RFC5245] | | a=ice-ufrag:c300d85b | [RFC5245] |
| a=ice-pwd:de4e99bd291c325921d5d47ef | [RFC5245] | | a=ice-pwd:de4e99bd291c325921d5d47ef | [RFC5245] |
| babd9a2 | | | babd9a2 | |
| a=fingerprint:sha-1 99:41:49:83:4a: | [RFC5245] | | a=fingerprint:sha-1 99:41:49:83:4a: | [RFC5245] |
| 97:0e:1f:ef:6d:f7:c9:c7:70:9d: | | | 97:0e:1f:ef:6d:f7:c9:c7:70:9d: | |
| 1f:66:79:a8:07 | | | 1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.7 60065 typ host | | | 192.168.1.7 60065 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 98.248.92.77 60065 typ srflx raddr | | | 98.248.92.77 60065 typ srflx raddr | |
| 192.168.1.4 rport 60065 | | | 192.168.1.4 rport 60065 | |
| a=setup:active | [RFC4145] | | a=setup:active | [RFC4145] |
| a=rtcp-mux | [RFC5576] | | a=rtcp-mux | [RFC5576] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle |
| | -negotiation] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
| m=video 54609 UDP/TLS/RTP/SAVPF 101 | BUNDLE accepted with port | | m=video 49203 UDP/TLS/RTP/SAVPF 101 | BUNDLE accepted with port |
| 102 | repeated from the audio | | 102 | repeated from the audio |
| | port | | | port |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=rtcp:56503 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:56503 IN IP4 98.248.92.77 | [RFC3605] |
| a=msid:ma tc | Identifies RTCMediaStream | | a=msid:ma tc | Identifies RTCMediaStream |
| | ID (ma) and | | | ID (ma) and |
| | RTCMediaStreamTrack ID (tc) | | | RTCMediaStreamTrack ID (tc) |
| a=mid:m2 | [RFC5888] Video m=line part | | a=mid:m2 | [RFC5888] Video m=line part |
| | of BUNDLE group | | | of BUNDLE group |
| a=rtpmap:101 H264/90000 | [RFC3984] | | a=rtpmap:101 H264/90000 | [RFC3984] |
| a=rtpmap:102 H264/90000 | [RFC3984] | | a=rtpmap:102 H264/90000 | [RFC3984] |
| a=recvonly | [RFC3264] | | a=recvonly | [RFC3264] |
| a=fmtp:101 profile-level-id=4d0028 | [RFC3984] | | a=fmtp:101 profile-level-id=42401f | [RFC3984] |
| ;packetization-mode=1;max-fr=30 | | | ;packetization-mode=1;max-fr=30 | |
| a=fmtp:102 profile-level-id=4d0028 | [RFC3984] | | a=fmtp:102 profile-level-id=42401f | [RFC3984] |
| ;packetization-mode=1;max-fr=15 | | | ;packetization-mode=1;max-fr=15 | |
| a=simulcast: recv 101;102 | [I-D.ietf-mmusic-sdp-simulc | | a=rid:3 recv pt=101;max-width=1280 | [I-D.ietf-mmusic-rid] Bob |
| | ast] Bob accepts to | | ;max-height=720; | accepts the offered payload |
| | receieve the offered | | | format constraints |
| | simulcast streams | | a=rid:4 recv pt=102;max-width=640 | [I-D.ietf-mmusic-rid] Bob |
| ;max-height=360; | accepts the offered payload |
| | format constraints |
| a=simulcast: recv 3;4 | [I-D.ietf-mmusic-sdp-simulc |
| | ast] Bob accepts the |
| | offered simulcast streams. |
| a=ssrc:90876 | [RFC5576] | | a=ssrc:90876 | [RFC5576] |
| cname:axzo1278npDlAzM73 | | | cname:axzo1278npDlAzM73 | |
| a=ice-ufrag:ufrag:c300d85b | [RFC5245] | | a=ice-ufrag:ufrag:c300d85b | [RFC5245] |
| a=ice-pwd:de4e99bd291c325921d5d47ef | [RFC5245] | | a=ice-pwd:de4e99bd291c325921d5d47ef | [RFC5245] |
| babd9a2 | | | babd9a2 | |
| a=fingerprint:sha-1 99:41:49:83:4a: | [RFC5245] | | a=fingerprint:sha-1 99:41:49:83:4a: | [RFC5245] |
| 97:0e:1f:ef:6d:f7:c9:c7:70: | | | 97:0e:1f:ef:6d:f7:c9:c7:70: | |
| 9d:1f:66:79:a8:07 | | | 9d:1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.7 60065 typ host | | | 192.168.1.7 60065 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 98.248.92.77 60065 typ srflx raddr | | | 98.248.92.77 60065 typ srflx raddr | |
| 192.168.1.7 rport 60065 | | | 192.168.1.7 rport 60065 | |
| a=setup:active | [RFC4145] | | a=setup:active | [RFC4145] |
| a=rtcp-mux | [RFC5576] | | a=rtcp-mux | [RFC5576] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle |
| | -negotiation] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+-------------------------------------+-----------------------------+ +-------------------------------------+-----------------------------+
Table 27: 5.3.1 SDP Answer Table 27: 5.3.1 SDP Answer
5.3.2. Successful SVC Video Session 5.3.2. Successful SVC Video Session
This section shows an SDP Offer/Answer for a session with an audio This section shows an SDP Offer/Answer for a session with an audio
and a single video source. The video source is encoded as layered and a single video source. The video source is encoded as layered
coding at 3 different resolutions based on [RFC5583]. The video coding at 3 different resolutions based on [RFC5583]. The video
skipping to change at page 68, line 13 skipping to change at page 69, line 13
| max-fr=15;max-fs=1200 | | | max-fr=15;max-fs=1200 | |
| a=rtpmap:100 H264-SVC/90000 | [RFC3984] | | a=rtpmap:100 H264-SVC/90000 | [RFC3984] |
| a=fmtp:100 profile-level- | [RFC3984] | | a=fmtp:100 profile-level- | [RFC3984] |
| id=4d0028;packetization-mode=1; | | | id=4d0028;packetization-mode=1; | |
| max-fr=30;max-fs=8040 | | | max-fr=30;max-fs=8040 | |
| a=depend:100 lay m1:96,97; | [RFC5583]Layer 3 dependent on | | a=depend:100 lay m1:96,97; | [RFC5583]Layer 3 dependent on |
| | layers 1 and 2 | | | layers 1 and 2 |
| a=sendonly | [RFC3264] - Send only video | | a=sendonly | [RFC3264] - Send only video |
| | stream | | | stream |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=ssrc:1732846380 | [RFC5576] | | a=ssrc:1732846380 | [RFC5576] |
| cname:axzo1278npDlAzM73 | | | cname:axzo1278npDlAzM73 | |
| a=ssrc:1732846381 | [RFC5576] | | a=ssrc:1732846381 | [RFC5576] |
| cname:axzo1278npDlAzM73 | | | cname:axzo1278npDlAzM73 | |
| a=ssrc:1732846382 | [RFC5576] | | a=ssrc:1732846382 | [RFC5576] |
| cname:axzo1278npDlAzM73 | | | cname:axzo1278npDlAzM73 | |
| a=rtcp-fb:* nack | [RFC5104] | | a=rtcp-fb:* nack | [RFC5104] |
| a=rtcp-fb:* nack pli | [RFC5104] | | a=rtcp-fb:* nack pli | [RFC5104] |
| a=rtcp-fb:* ccm fir | [RFC5104] | | a=rtcp-fb:* ccm fir | [RFC5104] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
skipping to change at page 69, line 19 skipping to change at page 70, line 20
| 474af08a068 | | | 474af08a068 | |
| a=fingerprint:sha-1 99:41:49:83: | [RFC5245] | | a=fingerprint:sha-1 99:41:49:83: | [RFC5245] |
| 4a:97:0e:1f:ef:6d:f7:c9:c7:70: | | | 4a:97:0e:1f:ef:6d:f7:c9:c7:70: | |
| 9d:1f:66:79:a8:07 | | | 9d:1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.7 60065 typ host | | | 192.168.1.7 60065 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 98.248.92.77 60065 typ srflx | | | 98.248.92.77 60065 typ srflx | |
| raddr 192.168.1.5 rport 60065 | | | raddr 192.168.1.5 rport 60065 | |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
| m=video 54609 UDP/TLS/RTP/SAVPF | BUNDLE accepted Bundle address | | m=video 49203 UDP/TLS/RTP/SAVPF | BUNDLE accepted Bundle address |
| 96 100 | same as audio m=line. | | 96 100 | same as audio m=line. |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream ID | | a=msid:ma tb | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (tb) | | | ID (tb) |
| a=rtcp:56503 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:56503 IN IP4 98.248.92.77 | [RFC3605] |
| a=mid:m1 | [RFC5888] Video m=line part of | | a=mid:m1 | [RFC5888] Video m=line part of |
| | BUNDLE group | | | BUNDLE group |
| a=rtpmap:96 H264/90000 | [RFC3984] | | a=rtpmap:96 H264/90000 | [RFC3984] |
| a=fmtp:96 profile-level- | [RFC3984]H.264 Layer 1 | | a=fmtp:96 profile-level- | [RFC3984]H.264 Layer 1 |
skipping to change at page 70, line 5 skipping to change at page 71, line 6
| 9d:1f:66:79:a8:07 | | | 9d:1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.5 64678 typ host | | | 192.168.1.5 64678 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 24.23.204.142 64678 typ srflx | | | 24.23.204.142 64678 typ srflx | |
| raddr 192.168.1.5 rport 64678 | | | raddr 192.168.1.5 rport 64678 | |
| a=recvonly | [RFC3264] - Receive only video | | a=recvonly | [RFC3264] - Receive only video |
| | stream | | | stream |
| a=setup:active | [RFC4145] | | a=setup:active | [RFC4145] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=ssrc:4638117328 | [RFC5576] | | a=ssrc:4638117328 | [RFC5576] |
| cname:axzo1278npDlAzM73 | | | cname:axzo1278npDlAzM73 | |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
Table 29: 5.3.2 SDP Answer with SVC Table 29: 5.3.2 SDP Answer with SVC
5.3.3. Successful Simulcast Video Session with Retransmission 5.3.3. Successful Simulcast Video Session with Retransmission
This section shows an SDP Offer/Answer exchange for a simulcast This section shows an SDP Offer/Answer exchange for a simulcast
scenario with 2 two resolutions and has [RFC4588] style re- scenario with 3 resolutions and has [RFC4588] style re-transmission
transmission flows. flows.
Simulcast Streams with Retransmission [I-D.ietf-mmusic-rid] framework is used to specify all the (3)
resolution constraints mapped to a single Payload Type (98).
[I-D.ietf-mmusic-sdp-simulcast] framework identifies the simulcast
streams via their 'rid' identifiers.
Simulcast Streams with Retransmission
Alice Bob Alice Bob
| | | |
| | | |
|Alice offers single audio and simulcasted video streams | |Alice offers single audio and simulcasted video streams |
| | | |
| | | |
| Offer(Audio:Opus Video:VP8 with 2 resolutions) | | Offer(Audio:Opus Video:VP8 with 3 resolutions) |
| & RTX stream | | & RTX stream |
|-------------------------------------------------------->| |-------------------------------------------------------->|
| | | |
| | | |
| Answer (Bob accepts Alice's offer) | | Answer (Bob accepts Alice's offer) |
|<--------------------------------------------------------| |<--------------------------------------------------------|
| | | |
| | | |
|One-Way 1 Opus, 2 VP8 and RTX video streams,all muxed | |One-Way 1 Opus, 3 VP8 and RTX video streams,all muxed |
|.........................................................| |.........................................................|
| | | |
| | | |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
| SDP Contents | RFC#/Notes | | SDP Contents | RFC#/Notes |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
| v=0 | [RFC4566] | | v=0 | [RFC4566] |
| o=- 20519 0 IN IP4 0.0.0.0 | [RFC4566] | | o=- 20519 0 IN IP4 0.0.0.0 | [RFC4566] |
| s=- | [RFC4566] | | s=- | [RFC4566] |
| t=0 0 | [RFC4566] | | t=0 0 | [RFC4566] |
| a=msid-semantic:WMS ma | [I-D.ietf-mmusic-msid] | | a=msid-semantic:WMS ma | [I-D.ietf-mmusic-msid] |
| a=group:BUNDLE m0 m1 | [I-D.ietf-mmusic-sdp-bundle-ne | | a=group:BUNDLE m0 m1 | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] Alice supports | | | gotiation] Alice supports |
skipping to change at page 71, line 48 skipping to change at page 73, line 8
| a=candidate:1 1 UDP 694302207 | [RFC5245] | | a=candidate:1 1 UDP 694302207 | [RFC5245] |
| 24.23.204.141 54609 typ srflx | | | 24.23.204.141 54609 typ srflx | |
| raddr 192.168.1.4 rport 54609 | | | raddr 192.168.1.4 rport 54609 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.4 64678 typ host | | | 192.168.1.4 64678 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 24.23.204.141 64678 typ srflx | | | 24.23.204.141 64678 typ srflx | |
| raddr 192.168.1.4 rport 64678 | | | raddr 192.168.1.4 rport 64678 | |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
| m=video 0 UDP/TLS/RTP/SAVPF 98 | bundle-only video line with | | m=video 0 UDP/TLS/RTP/SAVPF 98 | bundle-only video line with |
| 100 101 103 | port number set to zero | | 103 | port number set to zero |
| c=IN IP4 24.23.204.141 | [RFC4566] | | c=IN IP4 24.23.204.141 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream ID | | a=msid:ma tb | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (tb) | | | ID (tb) |
| a=rtcp:64678 IN IP4 | [RFC3605] | | a=rtcp:64678 IN IP4 | [RFC3605] |
| 24.23.204.141 | | | 24.23.204.141 | |
| a=mid:m1 | [RFC5888] | | a=mid:m1 | [RFC5888] |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] | | a=fmtp:98 max-fr=30;max-fs=3600 | [RFC4566] |
| a=rtpmap:101 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:103 rtx/90000 | [RFC4588] |
| a=rtpmap:103 VP8/90000 | [I-D.ietf-payload-vp8] | | a=fmtp:103 apt=98;rtx-time=200 | [RFC4588] |
| a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] | | a=rid:1 send pt=98;max-fs=921600 | [I-D.ietf-mmusic-rid] |
| a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] | | ;max-fr=30; | |
| a=fmtp:101 apt=98;rtx-time=3000 | [RFC4588] | | a=rid:2 send pt=98;max-fs=614400 | [I-D.ietf-mmusic-rid] |
| a=fmtp:103 apt=100;rtx-time=3000 | [RFC4588] | | ;max-fr=15; | |
| a=simulast: send 98;100 | [I-D.ietf-mmusic-sdp-simulcast | | a=rid:3 send pt=98;max-fs=230400 | [I-D.ietf-mmusic-rid] |
| | ] | | ;max-fr=30; | |
| a=simulast: send 5;6;7 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] Alice can send all the |
| | simulcast streams |
| a=ssrc-group:FID 12345 34567 | [RFC5888] | | a=ssrc-group:FID 12345 34567 | [RFC5888] |
| a=ssrc-group:FID 78990 90887 | [RFC5888] | | a=ssrc-group:FID 78990 90887 | [RFC5888] |
| a=ssrc:12345 | [RFC5576] | | a=ssrc:12345 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:78990 | [RFC5576] | | a=ssrc:78990 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:34567 | [RFC5576] | | a=ssrc:34567 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:90887 | [RFC5576] | | a=ssrc:90887 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=sendonly | [RFC3264] | | a=sendonly | [RFC3264] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=rtcp-fb:* nack | [RFC5104] | | a=rtcp-fb:* nack | [RFC5104] |
| a=rtcp-fb:* nack pli | [RFC5104] | | a=rtcp-fb:* nack pli | [RFC5104] |
| a=rtcp-fb:* ccm fir | [RFC5104] | | a=rtcp-fb:* ccm fir | [RFC5104] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
Table 30: 5.3.3 SDP Offer w/Simulcast, RTX Table 30: 5.3.3 SDP Offer w/Simulcast, RTX
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
| SDP Contents | RFC#/Notes | | SDP Contents | RFC#/Notes |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
| v=0 | [RFC4566] | | v=0 | [RFC4566] |
| o=- 20519 0 IN IP4 0.0.0.0 | [RFC4566] | | o=- 20519 0 IN IP4 0.0.0.0 | [RFC4566] |
| s=- | [RFC4566] | | s=- | [RFC4566] |
| t=0 0 | [RFC4566] | | t=0 0 | [RFC4566] |
| a=msid-semantic:WMS ma | [I-D.ietf-mmusic-msid] | | a=msid-semantic:WMS ma | [I-D.ietf-mmusic-msid] |
| a=group:BUNDLE m0 m1 | [I-D.ietf-mmusic-sdp-bundle-ne | | a=group:BUNDLE m0 m1 | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] Alice supports | | | gotiation] Bob supports |
| | grouping of m=lines under | | | grouping of m=lines under |
| | BUNDLE semantics | | | BUNDLE semantics |
| a=ice-options:trickle | [I-D.ietf-mmusic-trickle-ice] | | a=ice-options:trickle | [I-D.ietf-mmusic-trickle-ice] |
| m=audio 49203 UDP/TLS/RTP/SAVPF | [RFC4566] | | m=audio 49203 UDP/TLS/RTP/SAVPF | [RFC4566] |
| 109 | | | 109 | |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=msid:ma ta | Identifies RTCMediaStream ID | | a=msid:ma ta | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (ta) | | | ID (ta) |
| a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] |
skipping to change at page 73, line 45 skipping to change at page 75, line 9
| 98 100 101 103 | address identical to audio | | 98 100 101 103 | address identical to audio |
| | m-line | | | m-line |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream ID | | a=msid:ma tb | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (tb) | | | ID (tb) |
| a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] |
| a=mid:m1 | [RFC5888] Video m=line part of | | a=mid:m1 | [RFC5888] Video m=line part of |
| | BUNDLE group | | | BUNDLE group |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] | | a=fmtp:98 max-fr=30;max-fs=3600 | [RFC4566] |
| a=rtpmap:101 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:103 rtx/90000 | [RFC4588] |
| a=rtpmap:103 VP8/90000 | [I-D.ietf-payload-vp8] | | a=fmtp:103 apt=98;rtx-time=200 | [RFC4588] |
| a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] | | a=rid:1 recv pt=98;max-fs=921600 | [I-D.ietf-mmusic-rid] |
| a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] | | ;max-fr=30; | |
| a=fmtp:101 apt=98;rtx-time=3000 | [RFC4588] | | a=rid:2 recv pt=98;max-fs=614400 | [I-D.ietf-mmusic-rid] |
| a=fmtp:103 apt=100;rtx-time=3000 | [RFC4588] | | ;max-fr=15; | |
| a=rid:3 recv pt=98;max-fs=230400 | [I-D.ietf-mmusic-rid] |
| ;max-fr=30; | |
| a=simulast: recv 5;6;7 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] Bob accepts the offered |
| | simulcast streams |
| a=ice-ufrag:074c6550 | [RFC5245] | | a=ice-ufrag:074c6550 | [RFC5245] |
| a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] | | a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] |
| 474af08a068 | | | 474af08a068 | |
| a=fingerprint:sha-1 99:41:49:83: | [RFC5245] | | a=fingerprint:sha-1 99:41:49:83: | [RFC5245] |
| 4a:97:0e:1f:ef:6d:f7:c9:c7: | | | 4a:97:0e:1f:ef:6d:f7:c9:c7: | |
| 70:9d:1f:66:79:a8:07 | | | 70:9d:1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.7 60065 typ host | | | 192.168.1.7 60065 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 98.248.92.772 60065 typ srflx | | | 98.248.92.772 60065 typ srflx | |
| raddr 192.168.1.7 rport 60065 | | | raddr 192.168.1.7 rport 60065 | |
| a=simulcast: recv 98;100 | [I-D.ietf-mmusic-sdp-simulcast | | a=simulcast: recv 98;100 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] | | | ] |
| a=recvonly | [RFC3264] | | a=recvonly | [RFC3264] |
| a=setup:active | [RFC4145] | | a=setup:active | [RFC4145] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=rtcp-fb:* nack | [RFC5104] | | a=rtcp-fb:* nack | [RFC5104] |
| a=rtcp-fb:* nack pli | [RFC5104] | | a=rtcp-fb:* nack pli | [RFC5104] |
| a=rtcp-fb:* ccm fir | [RFC5104] | | a=rtcp-fb:* ccm fir | [RFC5104] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
Table 31: 5.3.3 SDP Answer w/Simulcast, RTX Table 31: 5.3.3 SDP Answer w/Simulcast, RTX
5.3.4. Successful 1-way Simulcast Session with 2 resolutions and RTX - 5.3.4. Successful 1-way Simulcast Session with 2 resolutions and RTX -
One resolution rejected One resolution rejected
skipping to change at page 76, line 44 skipping to change at page 78, line 8
| 100 101 103 | port number set to zero | | 100 101 103 | port number set to zero |
| c=IN IP4 24.23.204.141 | [RFC4566] | | c=IN IP4 24.23.204.141 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream ID | | a=msid:ma tb | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (tb) | | | ID (tb) |
| a=rtcp:64678 IN IP4 | [RFC3605] | | a=rtcp:64678 IN IP4 | [RFC3605] |
| 24.23.204.141 | | | 24.23.204.141 | |
| a=mid:m1 | [RFC5888] | | a=mid:m1 | [RFC5888] |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:101 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:101 rtx/90000 | [RFC4588] |
| a=rtpmap:103 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:103 rtx/90000 | [RFC4588] |
| a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] | | a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] |
| a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] | | a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] |
| a=fmtp:101 apt=98;rtx-time=3000 | [RFC4588] | | a=fmtp:101 apt=98;rtx-time=200 | [RFC4588] |
| a=fmtp:103 apt=100;rtx-time=3000 | [RFC4588] | | a=fmtp:103 apt=100;rtx-time=200 | [RFC4588] |
| a=simulcast: send 98;100 | [I-D.ietf-mmusic-sdp-simulcast | | a=rid:1 send pt=98; | [I-D.ietf-mmusic-rid] 1:1 |
| | mapping between the PT and the |
| | 'rid' identifier |
| a=rid:2 send pt=100; | [I-D.ietf-mmusic-rid] 1:1 |
| | mapping between the PT and the |
| | 'rid' identifier |
| a=simulcast: send 1;2 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] | | | ] |
| a=ssrc-group:FID 12345 34567 | [RFC5888] | | a=ssrc-group:FID 12345 34567 | [RFC5888] |
| a=ssrc-group:FID 78990 90887 | [RFC5888] | | a=ssrc-group:FID 78990 90887 | [RFC5888] |
| a=ssrc:12345 | [RFC5576] | | a=ssrc:12345 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:78990 | [RFC5576] | | a=ssrc:78990 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:34567 | [RFC5576] | | a=ssrc:34567 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:90887 | [RFC5576] | | a=ssrc:90887 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=sendonly | [RFC3264] | | a=sendonly | [RFC3264] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=rtcp-fb:* nack | [RFC5104] | | a=rtcp-fb:* nack | [RFC5104] |
| a=rtcp-fb:* nack pli | [RFC5104] | | a=rtcp-fb:* nack pli | [RFC5104] |
| a=rtcp-fb:* ccm fir | [RFC5104] | | a=rtcp-fb:* ccm fir | [RFC5104] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
Table 32: 5.3.4 SDP Offer w/Simulcast, RTX Table 32: 5.3.4 SDP Offer w/Simulcast, RTX
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
| SDP Contents | RFC#/Notes | | SDP Contents | RFC#/Notes |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
| v=0 | [RFC4566] | | v=0 | [RFC4566] |
| o=- 20519 0 IN IP4 0.0.0.0 | [RFC4566] | | o=- 20519 0 IN IP4 0.0.0.0 | [RFC4566] |
| s=- | [RFC4566] | | s=- | [RFC4566] |
| t=0 0 | [RFC4566] | | t=0 0 | [RFC4566] |
| a=msid-semantic:WMS ma | [I-D.ietf-mmusic-msid] | | a=msid-semantic:WMS ma | [I-D.ietf-mmusic-msid] |
| a=group:BUNDLE m0 m1 | [I-D.ietf-mmusic-sdp-bundle-ne | | a=group:BUNDLE m0 m1 | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] Alice supports | | | gotiation] Bob supports |
| | grouping of m=lines under | | | grouping of m=lines under |
| | BUNDLE semantics | | | BUNDLE semantics |
| a=ice-options:trickle | [I-D.ietf-mmusic-trickle-ice] | | a=ice-options:trickle | [I-D.ietf-mmusic-trickle-ice] |
| m=audio 49203 UDP/TLS/RTP/SAVPF | [RFC4566] | | m=audio 49203 UDP/TLS/RTP/SAVPF | [RFC4566] |
| 109 | | | 109 | |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=msid:ma ta | Identifies RTCMediaStream ID | | a=msid:ma ta | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (ta) | | | ID (ta) |
| a=rtcp:49203 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:49203 IN IP4 98.248.92.77 | [RFC3605] |
skipping to change at page 78, line 29 skipping to change at page 79, line 48
| | m-line | | | m-line |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream ID | | a=msid:ma tb | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (tb) | | | ID (tb) |
| a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] |
| a=mid:m1 | [RFC5888] | | a=mid:m1 | [RFC5888] |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:101 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:101 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] | | a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] |
| a=fmtp:101 apt=98;rtx-time=3000 | [RFC4588] | | a=fmtp:101 apt=98;rtx-time=200 | [RFC4588] |
| a=rid:1 recv pt=98; | [I-D.ietf-mmusic-rid] |
| a=simulcast: recv 1 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] Bob rejects the second |
| | simulcast stream and the |
| | associated rtx stream. |
| a=ice-ufrag:074c6550 | [RFC5245] | | a=ice-ufrag:074c6550 | [RFC5245] |
| a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] | | a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] |
| 474af08a068 | | | 474af08a068 | |
| a=fingerprint:sha-1 99:41:49:83: | [RFC5245] | | a=fingerprint:sha-1 99:41:49:83: | [RFC5245] |
| 4a:97:0e:1f:ef:6d:f7:c9:c7:70: | | | 4a:97:0e:1f:ef:6d:f7:c9:c7:70: | |
| 9d:1f:66:79:a8:07 | | | 9d:1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.7 60065 typ host | | | 192.168.1.7 60065 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 98.248.92.77 60065 typ srflx | | | 98.248.92.77 60065 typ srflx | |
| raddr 192.168.1.5 rport 60065 | | | raddr 192.168.1.5 rport 60065 | |
| a=simulcast: recv 98 | [I-D.ietf-mmusic-sdp-simulcast | | a=simulcast: recv 98 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] Bob accepts only one | | | ] Bob accepts only one |
| | simulcast resolution | | | simulcast resolution |
| a=ssrc:54321 | [RFC5576] | | a=ssrc:54321 | [RFC5576] |
| cname:NWs1ao1HmN4Xa5 | | | cname:NWs1ao1HmN4Xa5 | |
| a=recvonly | [RFC3264] | | a=recvonly | [RFC3264] |
| a=setup:active | [RFC4145] | | a=setup:active | [RFC4145] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
Table 33: 5.3.4 SDP Answer no Simulcast Table 33: 5.3.4 SDP Answer no Simulcast
5.3.5. Simulcast Video Session with Forward Error Correction 5.3.5. Simulcast Video Session with Forward Error Correction
This section shows an SDP Offer/Answer exchange for Simulcast video This section shows an SDP Offer/Answer exchange for Simulcast video
stream at two resolutions and and has [RFC5956] style FEC flows. stream at two resolutions and and has [RFC5956] style FEC flows.
On completion of the Offer/Answer exchange mechanism we end up one On completion of the Offer/Answer exchange mechanism we end up one
audio stream, 2 simulcast video streams and 2 associated FEC streams audio stream, 2 simulcast video streams and 2 associated FEC streams
are sent over a single 5-tuple. are sent over a single 5-tuple.
skipping to change at page 81, line 9 skipping to change at page 82, line 45
| c=IN IP4 24.23.204.141 | [RFC4566] | | c=IN IP4 24.23.204.141 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream ID | | a=msid:ma tb | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (tb) | | | ID (tb) |
| a=rtcp:64678 IN IP4 | [RFC3605] | | a=rtcp:64678 IN IP4 | [RFC3605] |
| 24.23.204.141 | | | 24.23.204.141 | |
| a=mid:m1 | [RFC5888] Video m=line part of | | a=mid:m1 | [RFC5888] Video m=line part of |
| | BUNDLE group | | | BUNDLE group |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:101 1d-interleaved- | [RFC5956] | | a=rtpmap:101 flexfec/90000 | [RFC5956] |
| parityfec/90000 | | | a=rtpmap:103 flexfec/90000 | [RFC5956] |
| a=rtpmap:103 1d-interleaved- | [RFC5956] |
| parityfec/90000 | |
| a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] | | a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] |
| a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] | | a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] |
| a=fmtp:101 L=5; D=10; repair- | [RFC5956] | | a=fmtp:101 L=5; D=10; ToP=2; | [RFC5956] |
| window=200000 | | | repair-window=200000 | |
| a=fmtp:103 L=5; D=10; repair- | [RFC5956] | | a=fmtp:103 L=5; D=10; ToP=2; | [RFC5956] |
| window=200000 | | | repair-window=200000 | |
| a=simulcast: send 98;100 | [I-D.ietf-mmusic-sdp-simulcast | | a=rid:1 send pt=98; | [I-D.ietf-mmusic-rid] 1:1 |
| | mapping between the PT and the |
| | 'rid' identifier |
| a=rid:2 send pt=100; | [I-D.ietf-mmusic-rid] 1:1 |
| | mapping between the PT and the |
| | 'rid' identifier |
| a=simulcast: send 1;2 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] | | | ] |
| a=depend:98 fec m1:101 | TBD |
| a=depend:100 fec m1:103 | TBD |
| a=ssrc-group:FEC-FR 12345 34567 | [RFC5888] |
| a=ssrc-group:FEC-FR 78990 90887 | [RFC5888] |
| a=ssrc:12345 | [RFC5576] | | a=ssrc:12345 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:78990 | [RFC5576] | | a=ssrc:78990 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:34567 | [RFC5576] | | a=ssrc:34567 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc:90887 | [RFC5576] | | a=ssrc:90887 | [RFC5576] |
| cname:Q/NWs1ao1HmN4Xa5 | | | cname:Q/NWs1ao1HmN4Xa5 | |
| a=ssrc-group:FEC-FR 12345 34567 | [RFC5956] |
| a=ssrc-group:FEC-FR 78990 90887 | [RFC5956] |
| a=sendonly | [RFC3264] | | a=sendonly | [RFC3264] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=rtcp-fb:* nack | [RFC5104] | | a=rtcp-fb:* nack | [RFC5104] |
| a=rtcp-fb:* nack pli | [RFC5104] | | a=rtcp-fb:* nack pli | [RFC5104] |
| a=rtcp-fb:* ccm fir | [RFC5104] | | a=rtcp-fb:* ccm fir | [RFC5104] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
Table 34: 5.3.5 SDP Offer Table 34: 5.3.5 SDP Offer
+----------------------------------+--------------------------------+ +----------------------------------+--------------------------------+
| SDP Contents | RFC#/Notes | | SDP Contents | RFC#/Notes |
skipping to change at page 82, line 25 skipping to change at page 84, line 16
| | BUNDLE group with a unique | | | BUNDLE group with a unique |
| | port number | | | port number |
| a=rtpmap:109 opus/48000/2 | [I-D.ietf-payload-rtp-opus] | | a=rtpmap:109 opus/48000/2 | [I-D.ietf-payload-rtp-opus] |
| a=extmap:1 urn:ietf:params:rtp- | [RFC6464] | | a=extmap:1 urn:ietf:params:rtp- | [RFC6464] |
| hdrext:ssrc-audio-level | | | hdrext:ssrc-audio-level | |
| a=ptime:20 | [I-D.ietf-payload-rtp-opus] | | a=ptime:20 | [I-D.ietf-payload-rtp-opus] |
| a=rtcp-fb:109 nack | [RFC5104] | | a=rtcp-fb:109 nack | [RFC5104] |
| a=recvonly | [RFC3264] | | a=recvonly | [RFC3264] |
| a=setup:active | [RFC4145] | | a=setup:active | [RFC4145] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=ssrc:33333 | [RFC5576] |
| cname:Y9/cZke09JAtpl98 | |
| a=ice-ufrag:074c6550 | [RFC5245] | | a=ice-ufrag:074c6550 | [RFC5245] |
| a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] | | a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] |
| 474af08a068 | | | 474af08a068 | |
| a=fingerprint:sha-1 99:41:49:83: | [RFC5245] | | a=fingerprint:sha-1 99:41:49:83: | [RFC5245] |
| 4a:97:0e:1f:ef:6d:f7:c9:c7:70:9d | | | 4a:97:0e:1f:ef:6d:f7:c9:c7:70:9d | |
| : 1f:66:79:a8:07 | | | : 1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.7 60065 typ host | | | 192.168.1.7 60065 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 98.248.92.77 60065 typ srflx | | | 98.248.92.77 60065 typ srflx | |
skipping to change at page 82, line 51 skipping to change at page 84, line 40
| | m=line. | | | m=line. |
| c=IN IP4 98.248.92.77 | [RFC4566] | | c=IN IP4 98.248.92.77 | [RFC4566] |
| a=msid:ma tb | Identifies RTCMediaStream ID | | a=msid:ma tb | Identifies RTCMediaStream ID |
| | (ma) and RTCMediaStreamTrack | | | (ma) and RTCMediaStreamTrack |
| | ID (tb) | | | ID (tb) |
| a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] | | a=rtcp:60065 IN IP4 98.248.92.77 | [RFC3605] |
| a=mid:m1 | [RFC5888] Video m=line part of | | a=mid:m1 | [RFC5888] Video m=line part of |
| | BUNDLE group | | | BUNDLE group |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:100 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=rtpmap:101 1d-interleaved- | [RFC5956] | | a=rtpmap:101 flexfec/90000 | [RFC5956] |
| parityfec/90000 | | | a=rtpmap:103 flexfec/90000 | [RFC5956] |
| a=rtpmap:103 1d-interleaved- | [RFC5956] |
| parityfec/90000 | |
| a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] | | a=fmtp:98 max-fr=30;max-fs=8040 | [RFC4566] |
| a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] | | a=fmtp:100 max-fr=15;max-fs=1200 | [RFC4566] |
| a=fmtp:101 L=5; D=10; repair- | [RFC5956] | | a=fmtp:101 L=5; D=10; ToP=2; | [RFC5956] |
| window=200000 | | | repair-window=200000 | |
| a=fmtp:103 L=5; D=10; repair- | [RFC5956] | | a=fmtp:103 L=5; D=10; ToP=2; | [RFC5956] |
| window=200000 | | | repair-window=200000 | |
| a=simulcast: recv 98;100 | [I-D.ietf-mmusic-sdp-simulcast | | a=rid:1 recv pt=98; | [I-D.ietf-mmusic-rid] |
| a=rid:2 recv pt=100; | [I-D.ietf-mmusic-rid] |
| a=simulcast: recv 1;2 | [I-D.ietf-mmusic-sdp-simulcast |
| | ] | | | ] |
| a=depend:98 fec m1:101 | TBD |
| a=depend:100 fec m1:103 | TBD |
| a=recvonly | [RFC3264] | | a=recvonly | [RFC3264] |
| a=setup:active | [RFC4145] | | a=setup:active | [RFC4145] |
| a=rtcp-mux | [RFC5761] | | a=rtcp-mux | [RFC5761] |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle-ne |
| | gotiation] |
| a=ice-ufrag:074c6550 | [RFC5245] | | a=ice-ufrag:074c6550 | [RFC5245] |
| a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] | | a=ice-pwd:a28a397a4c3f31747d1ee3 | [RFC5245] |
| 474af08a068 | | | 474af08a068 | |
| a=fingerprint:sha-1 99:41:49:83: | [RFC5245] | | a=fingerprint:sha-1 99:41:49:83: | [RFC5245] |
| 4a:97:0e:1f:ef:6d:f7:c9:c7:70: | | | 4a:97:0e:1f:ef:6d:f7:c9:c7:70: | |
| 9d:1f:66:79:a8:07 | | | 9d:1f:66:79:a8:07 | |
| a=candidate:0 2 UDP 2113667326 | [RFC5245] | | a=candidate:0 2 UDP 2113667326 | [RFC5245] |
| 192.168.1.7 60065 typ host | | | 192.168.1.7 60065 typ host | |
| a=candidate:1 2 UDP 1694302206 | [RFC5245] | | a=candidate:1 2 UDP 1694302206 | [RFC5245] |
| 98.248.92.77 60065 typ srflx | | | 98.248.92.77 60065 typ srflx | |
skipping to change at page 92, line 20 skipping to change at page 94, line 20
| a=mid:m1 | [RFC5888] Video m=line part | | a=mid:m1 | [RFC5888] Video m=line part |
| | of BUNDLE group | | | of BUNDLE group |
| a=msid:ma tb | Identifies RTCMediaStream | | a=msid:ma tb | Identifies RTCMediaStream |
| | ID (ma) and | | | ID (ma) and |
| | RTCMediaStreamTrack ID (tb) | | | RTCMediaStreamTrack ID (tb) |
| a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] | | a=rtpmap:98 VP8/90000 | [I-D.ietf-payload-vp8] |
| a=imageattr:98 [x=1280,y=720] | [RFC6236] | | a=imageattr:98 [x=1280,y=720] | [RFC6236] |
| a=fmtp:98 max-fr=30 | [RFC4566] | | a=fmtp:98 max-fr=30 | [RFC4566] |
| a=ssrc:12345 | [RFC5576] | | a=ssrc:12345 | [RFC5576] |
| cname:axzo1278npDlAzM73 | | | cname:axzo1278npDlAzM73 | |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle |
| | -negotiation] |
| a=sendrecv | [RFC3264] | | a=sendrecv | [RFC3264] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
| m=video 0 UDP/TLS/RTP/SAVPF 101 103 | bundle-only video line with | | m=video 0 UDP/TLS/RTP/SAVPF 101 103 | bundle-only video line with |
| | port number set to zero | | | port number set to zero |
| c=IN IP4 24.23.204.141 | [RFC4566] | | c=IN IP4 24.23.204.141 | [RFC4566] |
| a=rtcp:64678 IN IP4 24.23.204.141 | [RFC3605] | | a=rtcp:64678 IN IP4 24.23.204.141 | [RFC3605] |
| a=mid:m2 | [RFC5888] Video m=line part | | a=mid:m2 | [RFC5888] Video m=line part |
| | of BUNDLE group | | | of BUNDLE group |
| a=msid:ma tc | Identifies RTCMediaStream | | a=msid:ma tc | Identifies RTCMediaStream |
| | ID (ma) and | | | ID (ma) and |
| | RTCMediaStreamTrack ID (tc) | | | RTCMediaStreamTrack ID (tc) |
| a=rtpmap:101 H264/90000 | [RFC3984] | | a=rtpmap:101 H264/90000 | [RFC3984] |
| a=rtpmap:103 H264/90000 | [RFC3984] | | a=rtpmap:103 H264/90000 | [RFC3984] |
| a=fmtp:101 profile-level-id=4d0028 | [RFC3984]Camera-2,Encoding- | | a=fmtp:101 profile-level-id=4d0028 | [RFC3984]Camera-2,Encoding- |
| ;packetization-mode=1;max-fr=30 | 1 Resolution | | ;packetization-mode=1;max-fr=30 | 1 Resolution |
| a=ssrc:67890 | [RFC5576] | | a=ssrc:67890 | [RFC5576] |
| cname:axzo1278npDlAzM73 | | | cname:axzo1278npDlAzM73 | |
| a=bundle-only | [UNIFIED-PLAN] | | a=bundle-only | [I-D.ietf-mmusic-sdp-bundle |
| | -negotiation] |
| a=sendrecv | [RFC3264] | | a=sendrecv | [RFC3264] |
| a=rtcp-rsize | [RFC5506] | | a=rtcp-rsize | [RFC5506] |
+-------------------------------------+-----------------------------+ +-------------------------------------+-----------------------------+
Table 40: 5.4.3 SDP Simulcast bundle-only Table 40: 5.4.3 SDP Simulcast bundle-only
+------------------------------------------+------------------------+ +------------------------------------------+------------------------+
| SDP Contents | RFC#/Notes | | SDP Contents | RFC#/Notes |
+------------------------------------------+------------------------+ +------------------------------------------+------------------------+
| v=0 | [RFC4566] | | v=0 | [RFC4566] |
skipping to change at page 99, line 18 skipping to change at page 101, line 18
7. Acknowledgments 7. Acknowledgments
We would like to thank Justin Uberti, Chris Flo for their detailed We would like to thank Justin Uberti, Chris Flo for their detailed
review and inputs. review and inputs.
8. Change Log 8. Change Log
[RFC EDITOR NOTE: Please remove this section when publishing] [RFC EDITOR NOTE: Please remove this section when publishing]
Changes from draft-ietf-rtcweb-sdp-00
o Updated Simulcast/FEC/RTX examples to use RID framework
o Fixed BUNDLE references for a=bundle-only
Changes from draft-nandakumar-rtcweb-sdp-08 Changes from draft-nandakumar-rtcweb-sdp-08
o Fixed typos o Fixed typos
o Moved to a WG version o Moved to a WG version
Changes from draft-nandakumar-rtcweb-sdp-06 and draft-nandakumar- Changes from draft-nandakumar-rtcweb-sdp-06 and draft-nandakumar-
rtcweb-sdp-07 rtcweb-sdp-07
o Added clarification on Call-Flow diagram usage o Added clarification on Call-Flow diagram usage
skipping to change at page 100, line 45 skipping to change at page 103, line 4
o Fixed editorial comments on the mailing list. o Fixed editorial comments on the mailing list.
o Updated Data-channel SDP information based on draft-ietf-mmusic- o Updated Data-channel SDP information based on draft-ietf-mmusic-
sctp-sdp. sctp-sdp.
o Updated BUNDLE examples based on draft-ietf-mmusic-sdp-bundle- o Updated BUNDLE examples based on draft-ietf-mmusic-sdp-bundle-
negotiation. negotiation.
o Added examples for few more BUNDLE variants o Added examples for few more BUNDLE variants
o Added new examples for Simulcast and SVC o Added new examples for Simulcast and SVC
9. Informative References 9. Informative References
[RFC3264] Rosenberg, J. and H. Schulzrinne, "An Offer/Answer Model [RFC3264] Rosenberg, J. and H. Schulzrinne, "An Offer/Answer Model
with Session Description Protocol (SDP)", RFC 3264, June with Session Description Protocol (SDP)", RFC 3264, DOI
2002. 10.17487/RFC3264, June 2002,
<http://www.rfc-editor.org/info/rfc3264>.
[RFC4145] Yon, D. and G. Camarillo, "TCP-Based Media Transport in [RFC4145] Yon, D. and G. Camarillo, "TCP-Based Media Transport in
the Session Description Protocol (SDP)", RFC 4145, the Session Description Protocol (SDP)", RFC 4145, DOI
September 2005. 10.17487/RFC4145, September 2005,
<http://www.rfc-editor.org/info/rfc4145>.
[RFC4566] Handley, M., Jacobson, V., and C. Perkins, "SDP: Session [RFC4566] Handley, M., Jacobson, V., and C. Perkins, "SDP: Session
Description Protocol", RFC 4566, July 2006. Description Protocol", RFC 4566, DOI 10.17487/RFC4566,
July 2006, <http://www.rfc-editor.org/info/rfc4566>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/
RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
[RFC5245] Rosenberg, J., "Interactive Connectivity Establishment [RFC5245] Rosenberg, J., "Interactive Connectivity Establishment
(ICE): A Protocol for Network Address Translator (NAT) (ICE): A Protocol for Network Address Translator (NAT)
Traversal for Offer/Answer Protocols", RFC 5245, April Traversal for Offer/Answer Protocols", RFC 5245, DOI
2010. 10.17487/RFC5245, April 2010,
<http://www.rfc-editor.org/info/rfc5245>.
[RFC5506] Johansson, I. and M. Westerlund, "Support for Reduced-Size [RFC5506] Johansson, I. and M. Westerlund, "Support for Reduced-Size
Real-Time Transport Control Protocol (RTCP): Opportunities Real-Time Transport Control Protocol (RTCP): Opportunities
and Consequences", RFC 5506, April 2009. and Consequences", RFC 5506, DOI 10.17487/RFC5506, April
2009, <http://www.rfc-editor.org/info/rfc5506>.
[RFC3551] Schulzrinne, H. and S. Casner, "RTP Profile for Audio and [RFC3551] Schulzrinne, H. and S. Casner, "RTP Profile for Audio and
Video Conferences with Minimal Control", STD 65, RFC 3551, Video Conferences with Minimal Control", STD 65, RFC 3551,
July 2003. DOI 10.17487/RFC3551, July 2003,
<http://www.rfc-editor.org/info/rfc3551>.
[RFC3952] Duric, A. and S. Andersen, "Real-time Transport Protocol [RFC3952] Duric, A. and S. Andersen, "Real-time Transport Protocol
(RTP) Payload Format for internet Low Bit Rate Codec (RTP) Payload Format for internet Low Bit Rate Codec
(iLBC) Speech", RFC 3952, December 2004. (iLBC) Speech", RFC 3952, DOI 10.17487/RFC3952, December
2004, <http://www.rfc-editor.org/info/rfc3952>.
[RFC4796] Hautakorpi, J. and G. Camarillo, "The Session Description [RFC4796] Hautakorpi, J. and G. Camarillo, "The Session Description
Protocol (SDP) Content Attribute", RFC 4796, February Protocol (SDP) Content Attribute", RFC 4796, DOI 10.17487/
2007. RFC4796, February 2007,
<http://www.rfc-editor.org/info/rfc4796>.
[RFC5761] Perkins, C. and M. Westerlund, "Multiplexing RTP Data and [RFC5761] Perkins, C. and M. Westerlund, "Multiplexing RTP Data and
Control Packets on a Single Port", RFC 5761, April 2010. Control Packets on a Single Port", RFC 5761, DOI 10.17487/
RFC5761, April 2010,
<http://www.rfc-editor.org/info/rfc5761>.
[RFC3556] Casner, S., "Session Description Protocol (SDP) Bandwidth [RFC3556] Casner, S., "Session Description Protocol (SDP) Bandwidth
Modifiers for RTP Control Protocol (RTCP) Bandwidth", RFC Modifiers for RTP Control Protocol (RTCP) Bandwidth", RFC
3556, July 2003. 3556, DOI 10.17487/RFC3556, July 2003,
<http://www.rfc-editor.org/info/rfc3556>.
[RFC5104] Wenger, S., Chandra, U., Westerlund, M., and B. Burman, [RFC5104] Wenger, S., Chandra, U., Westerlund, M., and B. Burman,
"Codec Control Messages in the RTP Audio-Visual Profile "Codec Control Messages in the RTP Audio-Visual Profile
with Feedback (AVPF)", RFC 5104, February 2008. with Feedback (AVPF)", RFC 5104, DOI 10.17487/RFC5104,
February 2008, <http://www.rfc-editor.org/info/rfc5104>.
[RFC4588] Rey, J., Leon, D., Miyazaki, A., Varsa, V., and R. [RFC4588] Rey, J., Leon, D., Miyazaki, A., Varsa, V., and R.
Hakenberg, "RTP Retransmission Payload Format", RFC 4588, Hakenberg, "RTP Retransmission Payload Format", RFC 4588,
July 2006. DOI 10.17487/RFC4588, July 2006,
<http://www.rfc-editor.org/info/rfc4588>.
[RFC5956] Begen, A., "Forward Error Correction Grouping Semantics in [RFC5956] Begen, A., "Forward Error Correction Grouping Semantics in
the Session Description Protocol", RFC 5956, September the Session Description Protocol", RFC 5956, DOI 10.17487/
2010. RFC5956, September 2010,
<http://www.rfc-editor.org/info/rfc5956>.
[RFC5888] Camarillo, G. and H. Schulzrinne, "The Session Description [RFC5888] Camarillo, G. and H. Schulzrinne, "The Session Description
Protocol (SDP) Grouping Framework", RFC 5888, June 2010. Protocol (SDP) Grouping Framework", RFC 5888, DOI
10.17487/RFC5888, June 2010,
<http://www.rfc-editor.org/info/rfc5888>.
[RFC6236] Johansson, I. and K. Jung, "Negotiation of Generic Image [RFC6236] Johansson, I. and K. Jung, "Negotiation of Generic Image
Attributes in the Session Description Protocol (SDP)", RFC Attributes in the Session Description Protocol (SDP)", RFC
6236, May 2011. 6236, DOI 10.17487/RFC6236, May 2011,
<http://www.rfc-editor.org/info/rfc6236>.
[RFC3984] Wenger, S., Hannuksela, M., Stockhammer, T., Westerlund, [RFC3984] Wenger, S., Hannuksela, M., Stockhammer, T., Westerlund,
M., and D. Singer, "RTP Payload Format for H.264 Video", M., and D. Singer, "RTP Payload Format for H.264 Video",
RFC 3984, February 2005. RFC 3984, DOI 10.17487/RFC3984, February 2005,
<http://www.rfc-editor.org/info/rfc3984>.
[RFC5583] Schierl, T. and S. Wenger, "Signaling Media Decoding [RFC5583] Schierl, T. and S. Wenger, "Signaling Media Decoding
Dependency in the Session Description Protocol (SDP)", RFC Dependency in the Session Description Protocol (SDP)", RFC
5583, July 2009. 5583, DOI 10.17487/RFC5583, July 2009,
<http://www.rfc-editor.org/info/rfc5583>.
[RFC5576] Lennox, J., Ott, J., and T. Schierl, "Source-Specific [RFC5576] Lennox, J., Ott, J., and T. Schierl, "Source-Specific
Media Attributes in the Session Description Protocol Media Attributes in the Session Description Protocol
(SDP)", RFC 5576, June 2009. (SDP)", RFC 5576, DOI 10.17487/RFC5576, June 2009,
<http://www.rfc-editor.org/info/rfc5576>.
[RFC3550] Schulzrinne, H., Casner, S., Frederick, R., and V. [RFC3550] Schulzrinne, H., Casner, S., Frederick, R., and V.
Jacobson, "RTP: A Transport Protocol for Real-Time Jacobson, "RTP: A Transport Protocol for Real-Time
Applications", STD 64, RFC 3550, July 2003. Applications", STD 64, RFC 3550, DOI 10.17487/RFC3550,
July 2003, <http://www.rfc-editor.org/info/rfc3550>.
[RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, [RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston,
A., Peterson, J., Sparks, R., Handley, M., and E. A., Peterson, J., Sparks, R., Handley, M., and E.
Schooler, "SIP: Session Initiation Protocol", RFC 3261, Schooler, "SIP: Session Initiation Protocol", RFC 3261,
June 2002. DOI 10.17487/RFC3261, June 2002,
<http://www.rfc-editor.org/info/rfc3261>.
[RFC2326] Schulzrinne, H., Rao, A., and R. Lanphier, "Real Time [RFC2326] Schulzrinne, H., Rao, A., and R. Lanphier, "Real Time
Streaming Protocol (RTSP)", RFC 2326, April 1998. Streaming Protocol (RTSP)", RFC 2326, DOI 10.17487/
RFC2326, April 1998,
<http://www.rfc-editor.org/info/rfc2326>.
[RFC3605] Huitema, C., "Real Time Control Protocol (RTCP) attribute [RFC3605] Huitema, C., "Real Time Control Protocol (RTCP) attribute
in Session Description Protocol (SDP)", RFC 3605, October in Session Description Protocol (SDP)", RFC 3605, DOI
2003. 10.17487/RFC3605, October 2003,
<http://www.rfc-editor.org/info/rfc3605>.
[RFC2833] Schulzrinne, H. and S. Petrack, "RTP Payload for DTMF [RFC2833] Schulzrinne, H. and S. Petrack, "RTP Payload for DTMF
Digits, Telephony Tones and Telephony Signals", RFC 2833, Digits, Telephony Tones and Telephony Signals", RFC 2833,
May 2000. DOI 10.17487/RFC2833, May 2000,
<http://www.rfc-editor.org/info/rfc2833>.
[RFC6464] Lennox, J., Ivov, E., and E. Marocco, "A Real-time [RFC6464] Lennox, J., Ed., Ivov, E., and E. Marocco, "A Real-time
Transport Protocol (RTP) Header Extension for Client-to- Transport Protocol (RTP) Header Extension for Client-to-
Mixer Audio Level Indication", RFC 6464, December 2011. Mixer Audio Level Indication", RFC 6464, DOI 10.17487/
RFC6464, December 2011,
<http://www.rfc-editor.org/info/rfc6464>.
[RFC6465] Ivov, E., Marocco, E., and J. Lennox, "A Real-time [RFC6465] Ivov, E., Ed., Marocco, E., Ed., and J. Lennox, "A Real-
Transport Protocol (RTP) Header Extension for Mixer-to- time Transport Protocol (RTP) Header Extension for Mixer-
Client Audio Level Indication", RFC 6465, December 2011. to-Client Audio Level Indication", RFC 6465, DOI 10.17487/
RFC6465, December 2011,
<http://www.rfc-editor.org/info/rfc6465>.
[RFC7022] Begen, A., Perkins, C., Wing, D., and E. Rescorla, [RFC7022] Begen, A., Perkins, C., Wing, D., and E. Rescorla,
"Guidelines for Choosing RTP Control Protocol (RTCP) "Guidelines for Choosing RTP Control Protocol (RTCP)
Canonical Names (CNAMEs)", RFC 7022, September 2013. Canonical Names (CNAMEs)", RFC 7022, DOI 10.17487/RFC7022,
September 2013, <http://www.rfc-editor.org/info/rfc7022>.
[I-D.ietf-mmusic-sdp-bundle-negotiation] [I-D.ietf-mmusic-sdp-bundle-negotiation]
Holmberg, C., Alvestrand, H., and C. Jennings, Holmberg, C., Alvestrand, H., and C. Jennings,
"Negotiating Media Multiplexing Using the Session "Negotiating Media Multiplexing Using the Session
Description Protocol (SDP)", draft-ietf-mmusic-sdp-bundle- Description Protocol (SDP)", draft-ietf-mmusic-sdp-bundle-
negotiation-12 (work in progress), October 2014. negotiation-27 (work in progress), February 2016.
[I-D.ietf-mmusic-sdp-simulcast] [I-D.ietf-mmusic-sdp-simulcast]
Westerlund, M., Nandakumar, S., and M. Zanaty, "Using Burman, B., Westerlund, M., Nandakumar, S., and M. Zanaty,
Simulcast in SDP and RTP Sessions", draft-ietf-mmusic-sdp- "Using Simulcast in SDP and RTP Sessions", draft-ietf-
simulcast-00 (work in progress), January 2015. mmusic-sdp-simulcast-04 (work in progress), February 2016.
[I-D.ietf-mmusic-rid]
Thatcher, P., Zanaty, M., Nandakumar, S., Burman, B.,
Roach, A., and B. Campen, "RTP Payload Format
Constraints", draft-ietf-mmusic-rid-04 (work in progress),
February 2016.
[I-D.ietf-payload-rtp-opus] [I-D.ietf-payload-rtp-opus]
Spittka, J., Vos, K., and J. Valin, "RTP Payload Format Spittka, J., Vos, K., and J. Valin, "RTP Payload Format
for Opus Speech and Audio Codec", draft-ietf-payload-rtp- for the Opus Speech and Audio Codec", draft-ietf-payload-
opus-07 (work in progress), January 2015. rtp-opus-11 (work in progress), April 2015.
[I-D.ietf-payload-vp8] [I-D.ietf-payload-vp8]
Westin, P., Lundin, H., Glover, M., Uberti, J., and F. Westin, P., Lundin, H., Glover, M., Uberti, J., and F.
Galligan, "RTP Payload Format for VP8 Video", draft-ietf- Galligan, "RTP Payload Format for VP8 Video", draft-ietf-
payload-vp8-13 (work in progress), October 2014. payload-vp8-17 (work in progress), September 2015.
[I-D.ietf-rtcweb-jsep] [I-D.ietf-rtcweb-jsep]
Uberti, J., Jennings, C., and E. Rescorla, "Javascript Uberti, J., Jennings, C., and E. Rescorla, "Javascript
Session Establishment Protocol", draft-ietf-rtcweb-jsep-08 Session Establishment Protocol", draft-ietf-rtcweb-jsep-13
(work in progress), October 2014. (work in progress), March 2016.
[I-D.ietf-mmusic-trickle-ice] [I-D.ietf-mmusic-trickle-ice]
Ivov, E., Rescorla, E., and J. Uberti, "Trickle ICE: Ivov, E., Rescorla, E., and J. Uberti, "Trickle ICE:
Incremental Provisioning of Candidates for the Interactive Incremental Provisioning of Candidates for the Interactive
Connectivity Establishment (ICE) Protocol", draft-ietf- Connectivity Establishment (ICE) Protocol", draft-ietf-
mmusic-trickle-ice-02 (work in progress), January 2015. mmusic-trickle-ice-02 (work in progress), January 2015.
[I-D.ietf-mmusic-msid] [I-D.ietf-mmusic-msid]
Alvestrand, H., "WebRTC MediaStream Identification in the Alvestrand, H., "WebRTC MediaStream Identification in the
Session Description Protocol", draft-ietf-mmusic-msid-07 Session Description Protocol", draft-ietf-mmusic-msid-12
(work in progress), October 2014. (work in progress), March 2016.
[I-D.ietf-mmusic-sctp-sdp] [I-D.ietf-mmusic-sctp-sdp]
Holmberg, C., Loreto, S., and G. Camarillo, "Stream Holmberg, C., Loreto, S., and G. Camarillo, "Stream
Control Transmission Protocol (SCTP)-Based Media Transport Control Transmission Protocol (SCTP)-Based Media Transport
in the Session Description Protocol (SDP)", draft-ietf- in the Session Description Protocol (SDP)", draft-ietf-
mmusic-sctp-sdp-12 (work in progress), January 2015. mmusic-sctp-sdp-16 (work in progress), February 2016.
[I-D.ietf-rtcweb-data-channel] [I-D.ietf-rtcweb-data-channel]
Jesup, R., Loreto, S., and M. Tuexen, "WebRTC Data Jesup, R., Loreto, S., and M. Tuexen, "WebRTC Data
Channels", draft-ietf-rtcweb-data-channel-13 (work in Channels", draft-ietf-rtcweb-data-channel-13 (work in
progress), January 2015. progress), January 2015.
[I-D.ietf-payload-flexible-fec-scheme]
Singh, V., Begen, A., Zanaty, M., and G. Mandyam, "RTP
Payload Format for Flexible Forward Error Correction
(FEC)", draft-ietf-payload-flexible-fec-scheme-01 (work in
progress), October 2015.
[WebRTC] W3C, "WebRTC 1.0: Real-time Communication Between [WebRTC] W3C, "WebRTC 1.0: Real-time Communication Between
Browsers", Browsers",
<http://dev.w3.org/2011/webrtc/editor/webrtc.html> , . <http://dev.w3.org/2011/webrtc/editor/webrtc.html> .
[UNIFIED-PLAN]
Roach, A., Uberti, J., and M. Thomson, "A Unified Plan for
Using SDP with Large Numbers of Media Flows", draft-roach-
mmusic-unified-plan (work in progress), July 2013.
Authors' Addresses Authors' Addresses
Suhas Nandakumar Suhas Nandakumar
Cisco Cisco
170 West Tasman Drive 170 West Tasman Drive
San Jose, CA 95134 San Jose, CA 95134
USA USA
Email: snandaku@cisco.com Email: snandaku@cisco.com
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