WebRTC resources not freed

General
1

Hi,
I have an application that uses the streaming plugin to stream NDI and SDI sources.
To avoid encoding if there is no viewers online, I use the API to check the number of viewers at a mountpoint to start or stop encoding.

This works fine on all browsers except for Chrome on Android which does not detect that the page has been closed and the resource is not freed.
I have tried the workaround of adding a listener to the window.beforeunload event to call stopStream(streamId), but the resource is not released and the log of janus not shows any mesasge and not appear the usual:

janus[20477]: [janus.plugin.streaming-0x7f0ccc018140] No WebRTC media anymore
janus[20477]: [7297657092168904] WebRTC resources freed; 0x7f0ccc01c190 0x7f0ccc0188d0

I currently use Janus version 1103 (1.1.3) and It can be checked in in demos/streaming.html page clossing the page without click the stop button.

I would like to know if there is a workaround to avoid this behavior in Chrome for Android.

Best Regards,

2

You’ll probably need to wait for the session timeout to kick in (by default, ~60s) for the cleanup to happen, if the endpoint doesn’t explicitly close the PeerConnection and/or signal it’s gone. Try sending a hangup request too using the API in the page closing handler.

3

Gracias Lorenzo.
In my case, the resource it’s freed after several hours. I’m going to check the timeout settings because 60 seconds is perfect for me.
About the hangup, the stopStream function sends a stop and does a hangup just like in the streaming demo.
The curiosity is that it only happens in Chrome for Android (I don’t have iOS).

4

You are right, I have. a session_timeout of 3h. I don’t remember when I set it and why.
I’ve been a Janus user for years.
Tanks for your good job.