v=0
o=-  16833 0 IN IP4 0.0.0.0
s=-
t=0 0
a=group:BUNDLE audio video
a=group:LS audio video
a=ice-options:trickle
m=audio 49203 UDP/TLS/RTP/SAVPF 109
c=IN IP4 203.0.113.77
a=mid:audio
a=msid:ma ta 
a=sendrecv
a=rtpmap:109 opus/48000/2
a=maxptime:120
a=ice-ufrag:c300d85b
a=ice-pwd:de4e99bd291c325921d5d47efbabd9a2
a=fingerprint:sha-256 6B:8B:F0:65:5F:78:E2:51:3B:AC:6F:F3:3F:46:1B:35:DC:B8:5F:64:1A:24:C2:43:F0:A1:58:D0:A1:2C:19:08
a=setup:active
a=tls-id:CJ6FF9ZZMJW7MDRJIR7XVIQM48GE1G31
a=rtcp-mux
a=rtcp-mux-only
a=rtcp-rsize
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=extmap:2 urn:ietf:params:rtp-hdrext:sdes:mid
a=candidate:0 1 UDP 3618095783 198.51.100.7 49203 typ host
a=candidate:0 1 UDP 3618095783 2001:db8:30c:1266:5916:3779:22f6:77f7 49203 typ host
a=end-of-candidates
m=video 0 UDP/TLS/RTP/SAVPF 99
c=IN IP4 203.0.113.77
a=bundle-only
a=mid:video
a=msid:ma tb 
a=sendrecv
a=rtpmap:99 H264/90000
a=fmtp:99 profile-level-id=4d0028;packetization-mode=1
a=rtcp-fb:99 nack 
a=rtcp-fb:99 nack pli
a=rtcp-fb:99 ccm fir
a=extmap:2 urn:ietf:params:rtp-hdrext:sdes:mid