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app_confbridge: Add "all" variants of REMB behavior.

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When producing a combined REMB value the normal behavior
is to have a REMB value which is unique for each sender
based on all of their receivers. This can result in one
sender having low bitrate while all the rest are high.

This change adds "all" variants which produces a bridge
level REMB value instead. All REMB reports are combined
together into a single REMB value that is the same for
each sender.

ASTERISK-28401

Change-Id: I883e6cc26003b497c8180b346111c79a131ba88c
This commit is contained in:
Joshua Colp
2019-04-30 11:22:44 +00:00
parent 45a9ff8286
commit 80dba268ea
8 changed files with 122 additions and 9 deletions
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6
configs/samples/confbridge.conf.sample
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@@ -254,7 +254,11 @@ type=bridge
;remb_behavior=average ; How the combined REMB report for an SFU video bridge is constructed. If set to "average" then
; the estimated maximum bitrate of each receiver is used to construct an average bitrate. If
; set to "lowest" the lowest maximum bitrate is forwarded to the sender. If set to "highest"
; the highest maximum bitrate is forwarded to the sender. This defaults to "average".
; the highest maximum bitrate is forwarded to the sender. If set to "average_all" a single average
; is generated from every receiver and the same value is sent to every sender. If set to
; "lowest_all" the lowest maximum bitrate of all receivers is sent to every sender. If set to
; "highest_all" the highest maximum bitrate of all receivers is sent to every sender. This
; defaults to "average".
;enable_events=no ; If enabled, recipients who joined the bridge via a channel driver
; that supports Enhanced Messaging (currently only chan_pjsip) will