THE SFUTHE MCUP2P MESHfiles.meetup.com/8878612/2015-10-06-jitsi@sydney_s.pdf · TEMPORAL SVC 7.5...

THE MCUTHE SFU P2P MESH

THE MCUTHE SFU P2P MESH

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THE MCUTHE SFU P2P MESS

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ALL ABOUT THE PERFALL ABOUT INTEROP ALL ABOUT … NOT SURE

THE SFU

ALL ABOUT THE PERF

20% CPU1000 video streams550 Megabitshttps://jitsi.org/videobridge/performance

BANDWIDTH?but … then how do you adapt to

SIM & SVCin a nutshell

s i m u l c a s t

SVC: SCALABLE VIDEO CODING

SPACIAL SVC

TEMPORAL SVC7.5 fps15 fps

30 fps

1080p

simulcast: raison d'être

360p

720p

1080p

using endpoint generated bandwidth estimations (REMB)draft-alvestrand-rmcat-congestiondraft-alvestrand-rmcat-remb

1080p

fiber or cable


360p

720p

1080p


Wi-Fi

720p


360p

720p

1080p


3g

360p


360p

720p

1080p


3g

360p

fiber or cable


360p

720p

1080p


3g

360p

Wi-Fi


360p

720p


360p

3g

360p

3g



noyes sort of

yes soon maybe soon maybe

simulcast in chromeo=- 3407482598521328076 2 IN IP4 127.0.0.1s=-t=0 0a=group:BUNDLE audio video data...m=audio 9 RTP/SAVPF 111 103 104 9 0 8 106 105 13 126...m=video 9 RTP/SAVPF 100 116 117 96...cre

ateOf

fer

simulcast in chromeo=- 3407482598521328076 2 IN IP4 127.0.0.1s=-t=0 0...m=audio 9 RTP/SAVPF 111 103 104 9 0 8 106 105 13 126...m=video 9 RTP/SAVPF 100 116 117 96a=ssrc-group:SIM 3535700627 3169665807 0902838992a=ssrc:3535700627 cname:localCnamea=ssrc:3535700627 msid:DN4NQ 0a1622a6a67da=ssrc:3169665807 cname:localCnamea=ssrc:3169665807 msid:DN4NQ 0a1622a6a67da=ssrc:0902838992 cname:localCnamea=ssrc:0902838992 msid:DN4NQ 0a1622a6a67dse

tLocal

Descr

iption

simulc

ast

THREE SIMULCAST LAYERSWITH 3 TEMPORAL

BONU

SLAYERS EACH

s i m u l c a s t

THANKS FOR THE HELP, GEORGE POLITIS

simulcast in chrome

simulcast @ ietfoff

er/an

swer m=video

a=sendrecva=mid:v1 (max resolution)a=rid:1 send pt=*; max-width=1280; max-height=720; max-fps=30a=rid:2 recv pt=*; max-width=1280; max-height=720; max-fps=30a=rid:5 send pt=*; max-width=640; max-height=360; max-fps=15a=rid:6 send pt=*; max-width=320; max-height=180; max-fps=15

draft-pthatcher-mmusic-rid

simulcast with ortc

RTCP TERMINATION

WITHOUT RTCP TERMINATION80% PACKET LOSS

WITH RTCP TERMINATION00% PACKET LOSS 80% PACKET LOSS

WITH RTCP TERMINATION00% PACKET LOSS 80% PACKET LOSS

NACK TERMINATION AND PACKET CACHING

THE SFUTHE MCUP2P MESHfiles.meetup.com/8878612/2015-10-06-jitsi@sydney_s.pdf · TEMPORAL SVC 7.5...

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