Bug 422795

Summary: Video is laggy in Kamoso, but smooth in BigBlueButton
Product: [Applications] kamoso Reporter: Nate Graham <nate>
Component: generalAssignee: Aleix Pol <aleixpol>
Status: RESOLVED WORKSFORME    
Severity: normal CC: fathoni.id
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Nate Graham 2020-06-11 02:57:42 UTC 
This is probably not Kamoso's fault, but I thought I'd start here as I'm unfamiliar with the whole video stack.

The video from my laptop's camera is laggy in Kamoso (from git master). But when using BigBlueButton, the video is much smoother and there is no appreciable lag.

Happy to debug and provide logs however I can.
Comment 1 Nate Graham 2020-06-11 02:58:42 UTC 
It's also laggy in the Zoom desktop app which I presume (?) uses the same desktop video drivers as Kamoso.
Comment 2 Achmad Fathoni 2020-10-09 22:45:59 UTC 
Do the video also laggy when you record it with Cheese?
Comment 3 Nate Graham 2020-10-10 21:22:49 UTC 
It's less laggy with Cheese, but still not as smooth as in BigBLueButton.
Comment 4 Aleix Pol 2020-10-14 22:50:07 UTC 
My best guess so far is that gstreamer/camerabin (the component we share with cheese) is slow. No idea about zoom.

I can see it sometimes too (not always !?).

If you want to test with a surely different implementation, you can check OBS. It's also Qt but it doesn't use gstreamer.
Comment 5 Achmad Fathoni 2020-11-25 03:05:20 UTC 
(In reply to Nate Graham from comment #3)
> It's less laggy with Cheese, but still not as smooth as in BigBLueButton.

Have you tried OBS?
Comment 6 Nate Graham 2020-12-01 01:54:36 UTC 
This is fixed now. Must have been a drive or middleware issue.