Screenshare video ... so jerky, why ?

[Eric Beltrando]

Hello, 

When I share a video with students through screenshare they can hear the shared video, but the image is very very jerky. Like 2 or 4 frames per second instead of 24 frames per second.

Yet I have an excellent internet connection, and I have a very powerful computer (Mac M1, or Dell i7).

Any Idea ?

Thank you !

[Paulo Lanzarin]

>  When I share a video with students through screenshare they can hear the shared video, but the image is very very jerky. Like 2 or 4 frames per second instead of 24 frames per second.

That's because the default target is 5 FPS. The default quality settings for screen sharing are targeted at still image presets, so lower FPS, higher resolution.

See: https://github.com/bigbluebutton/bigbluebutton/blob/a862e6ca83552816c0ba6076688d850f0269266e/bigbluebutton-html5/private/config/settings.yml#L228-L237

It's configurable. You can change that in your server. If you're not the administrator, you can ask your sysadmin to look into that.

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[Eric Beltrando]

Excellent ! Merci beaucoup !!