Issue with webrtc streaming in web sdk

Meeting SDK Web
1

Description
When using video_webrtc_mode:1, web sdk throws a lot of console errors and then stops working.

Browser Console Error

[2048:2368:0512/085237.592107:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085238.092097:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085238.092470:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist.
[2048:2368:0512/085238.592094:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085239.092084:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085239.116495:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist.
[2048:2368:0512/085239.592111:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085240.092100:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085240.092500:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist.
[2048:2368:0512/085240.592125:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085241.095206:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085241.095769:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist.
[2048:2368:0512/085241.592078:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085242.092098:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085242.092513:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist.
[2048:2368:0512/085242.592107:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085243.093030:ERROR:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2774] Attempting to get contributing sources for SSRC:868274945 which doesn't exist.
[2048:2368:0512/085243.093553:WARNING:third_party/webrtc/media/engine/webrtc_voice_engine.cc:2151] Attempting to get RTP receive parameters for stream with ssrc 868274945 which doesn't exist.

Which Web Meeting SDK version?
Web sdk client view
3.13.1

Browser: Chrome
OS: Ubuntu

2

Hey @bharat.bhadresha,

Thanks for sharing the logs. It looks like there’s an audio stream that’s missing here. Given that you aren’t receiving the stream, there’s a few ways to go about debugging this:

Alternatively, you could use a third party like Recall.ai which makes it easy to get meeting data like video and audio

3

@amanda-recallai Thank you for your response, the docs you linked are of video sdk but I am using meeting sdk, I doubt if I have to subscribe as meeting sdk should internally handle it.

This issue is in this version only because previous version doesn’t have webrtc.

4

Hey @bharat.bhadresha
Thanks for reaching out to us..
Allow me some time to test this on my end.
Have you tried using our sample app to test this issue?

5

@elisa.zoom

Yes we have tested this on sample app also.

The issue mostly surfaces for meeting duration of more than 30 minutes.

6

Hey @bharat.bhadresha
So this issue only happens when you pass video_webrtc_mode:1 and only for meetings over 30 minutes?
Is this happening when passing video_webrtc_mode:0 or when not passing it at all?

7

This issue also happens if I pass video_webrtc_mode:0 .

I am not sure what conditions causes this but it happened to some of our test meetings.
I can DM the meeting ids if needed for investigation.

8

Hi @bharat.bhadresha
That would be great.
I tried replicating this issue on my end using our sample app that’s using version 3.13.2 and I was not able to reproduce the issue
Could you try using the 3.13.2 version and if this happens, please share the same browser errors, along with a meeting id

9

I tried with latest SDK too and still got the same issue.

I have the browser log and meeting id.
Please start a DM thread so I can post the information there.

10

Let me send you a DM

11

Any update from this?

12

We are also seeing issues with audio. Generally our staff is able to completely close out and restart the meeting and it resolves the issue. We are using video_webrtc_mode:1 and the Meeting web SDK version 4.0.7. @elisa.zoom were you able to find anything? I can also DM meeting id’s if it would help.