Problems on audiobridge

General
1

Hi, one of our customers expiriencing some issues with ab, in logs of janus many errors related to queue-in buffer:

[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)
[WARN] Participant queue-in contains too many packets, clearing now (count=5)

If we lower quality for ab to 1, it works better, but problem still exists. CPU usage isn’t high(~50% on peaks) and adding more cpu cores doesn’t help. Current bitrate for audio set to 16kbps, and sampling_rate is 48000 now. What can we do to adress this issue?

I suggest what encode performance of opus_encode isn’t enough on their server and causes queue-in grow.

1 Like
2

what I can also mention, what we are using rtp forwarding from ab to streaming, so opus_encode called in mixer thread and can slow down handling of inbuf theoretically

3

Are you using an older version where FEC was still being used for inbound packets?

4

no, we are using version from master

5

We do that too and it doesn’t impact us.