Chrome simulcasting: offer (browser)
------------------------------------
v=0
o=- 4308117731863853442 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE audio video data
a=msid-semantic: WMS ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A
m=audio 9 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 110 112 113 126
c=IN IP4 0.0.0.0
a=rtcp:9 IN IP4 0.0.0.0
a=ice-ufrag:4kTH
a=ice-pwd:4dMv9rTSZp2N8bhqVfuzQ5QO
a=ice-options:trickle
a=fingerprint:sha-256 54:71:4A:B5:5C:CD:08:40:F7:F0:A1:2D:83:1B:07:48:D0:B6:CB:C2:11:DA:14:D9:66:9D:32:F0:04:2F:17:3F
a=setup:actpass
a=mid:audio
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=sendrecv
a=rtcp-mux
a=rtpmap:111 opus/48000/2
a=rtcp-fb:111 transport-cc
a=fmtp:111 minptime=10;useinbandfec=1
a=rtpmap:103 ISAC/16000
a=rtpmap:104 ISAC/32000
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:106 CN/32000
a=rtpmap:105 CN/16000
a=rtpmap:13 CN/8000
a=rtpmap:110 telephone-event/48000
a=rtpmap:112 telephone-event/32000
a=rtpmap:113 telephone-event/16000
a=rtpmap:126 telephone-event/8000
a=ssrc:2556067821 cname:v5gV6GPhtUdWcvyK
a=ssrc:2556067821 msid:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A e8201d0d-5e50-4015-9654-7b0fd2317790
a=ssrc:2556067821 mslabel:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A
a=ssrc:2556067821 label:e8201d0d-5e50-4015-9654-7b0fd2317790
m=video 9 UDP/TLS/RTP/SAVPF 96 98 100 102 127 97 99 101 125
c=IN IP4 0.0.0.0
a=rtcp:9 IN IP4 0.0.0.0
a=ice-ufrag:4kTH
a=ice-pwd:4dMv9rTSZp2N8bhqVfuzQ5QO
a=ice-options:trickle
a=fingerprint:sha-256 54:71:4A:B5:5C:CD:08:40:F7:F0:A1:2D:83:1B:07:48:D0:B6:CB:C2:11:DA:14:D9:66:9D:32:F0:04:2F:17:3F
a=setup:actpass
a=mid:video
a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=extmap:4 urn:3gpp:video-orientation
a=extmap:5 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay
a=sendrecv
a=rtcp-mux
a=rtcp-rsize
a=rtpmap:96 VP8/90000
a=rtcp-fb:96 ccm fir
a=rtcp-fb:96 nack
a=rtcp-fb:96 nack pli
a=rtcp-fb:96 goog-remb
a=rtcp-fb:96 transport-cc
a=rtpmap:98 VP9/90000
a=rtcp-fb:98 ccm fir
a=rtcp-fb:98 nack
a=rtcp-fb:98 nack pli
a=rtcp-fb:98 goog-remb
a=rtcp-fb:98 transport-cc
a=rtpmap:100 H264/90000
a=rtcp-fb:100 ccm fir
a=rtcp-fb:100 nack
a=rtcp-fb:100 nack pli
a=rtcp-fb:100 goog-remb
a=rtcp-fb:100 transport-cc
a=fmtp:100 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
a=rtpmap:102 red/90000
a=rtpmap:127 ulpfec/90000
a=rtpmap:97 rtx/90000
a=fmtp:97 apt=96
a=rtpmap:99 rtx/90000
a=fmtp:99 apt=98
a=rtpmap:101 rtx/90000
a=fmtp:101 apt=100
a=rtpmap:125 rtx/90000
a=fmtp:125 apt=102
a=ssrc:266910347 cname:v5gV6GPhtUdWcvyK
a=ssrc:266910347 msid:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:266910347 mslabel:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:266910347 label:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:1333443966 cname:v5gV6GPhtUdWcvyK
a=ssrc:1333443966 msid:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:1333443966 mslabel:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:1333443966 label:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:3783809435 cname:v5gV6GPhtUdWcvyK
a=ssrc:3783809435 msid:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:3783809435 mslabel:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc:3783809435 label:ZUJWk5rc0kNVekwY7gpiWsPbvAa6UbZWQI4A d5c33c92-2951-4065-850f-b65683c625d7
a=ssrc-group:SIM 266910347 1333443966 3783809435
m=application 9 DTLS/SCTP 5000
c=IN IP4 0.0.0.0
a=ice-ufrag:4kTH
a=ice-pwd:4dMv9rTSZp2N8bhqVfuzQ5QO
a=ice-options:trickle
a=fingerprint:sha-256 54:71:4A:B5:5C:CD:08:40:F7:F0:A1:2D:83:1B:07:48:D0:B6:CB:C2:11:DA:14:D9:66:9D:32:F0:04:2F:17:3F
a=setup:actpass
a=mid:data
a=sctpmap:5000 webrtc-datachannel 1024


Chrome simulcasting: answer (Janus)
-----------------------------------
v=0
o=- 4308117731863853442 2 IN IP4 192.168.1.105
s=-
t=0 0
a=group:BUNDLE audio video data
a=msid-semantic: WMS janus
m=audio 9 UDP/TLS/RTP/SAVPF 111
c=IN IP4 192.168.1.105
a=sendrecv
a=mid:audio
a=rtcp-mux
a=ice-ufrag:b5AX
a=ice-pwd:BOQGQnjE8RQUX2PUjhyWwP
a=ice-options:trickle
a=fingerprint:sha-256 D2:B9:31:8F:DF:24:D8:0E:ED:D2:EF:25:9E:AF:6F:B8:34:AE:53:9C:E6:F3:8F:F2:64:15:FA:E8:7F:53:2D:38
a=setup:active
a=rtpmap:111 opus/48000/2
a=ssrc:4061075658 cname:janusaudio
a=ssrc:4061075658 msid:janus janusa0
a=ssrc:4061075658 mslabel:janus
a=ssrc:4061075658 label:janusa0
a=candidate:1 1 udp 2013266431 192.168.1.105 57179 typ host
m=video 9 UDP/TLS/RTP/SAVPF 96
c=IN IP4 192.168.1.105
a=sendrecv
a=mid:video
a=rtcp-mux
a=ice-ufrag:b5AX
a=ice-pwd:BOQGQnjE8RQUX2PUjhyWwP
a=ice-options:trickle
a=fingerprint:sha-256 D2:B9:31:8F:DF:24:D8:0E:ED:D2:EF:25:9E:AF:6F:B8:34:AE:53:9C:E6:F3:8F:F2:64:15:FA:E8:7F:53:2D:38
a=setup:active
a=rtpmap:96 VP8/90000
a=rtcp-fb:96 ccm fir
a=rtcp-fb:96 nack
a=rtcp-fb:96 nack pli
a=rtcp-fb:96 goog-remb
a=ssrc:1372861887 cname:janusvideo
a=ssrc:1372861887 msid:janus janusv0
a=ssrc:1372861887 mslabel:janus
a=ssrc:1372861887 label:janusv0
a=candidate:1 1 udp 2013266431 192.168.1.105 57179 typ host
m=application 9 DTLS/SCTP 5000
c=IN IP4 192.168.1.105
a=sendrecv
a=sctpmap:5000 webrtc-datachannel 16
a=mid:data
a=ice-ufrag:b5AX
a=ice-pwd:BOQGQnjE8RQUX2PUjhyWwP
a=ice-options:trickle
a=fingerprint:sha-256 D2:B9:31:8F:DF:24:D8:0E:ED:D2:EF:25:9E:AF:6F:B8:34:AE:53:9C:E6:F3:8F:F2:64:15:FA:E8:7F:53:2D:38
a=setup:active
a=candidate:1 1 udp 2013266431 192.168.1.105 57179 typ host