Multiple webcam issues

[schmidtbag]

Nicolas Dufresne-5 wrote
> please be aware the your are using @yahoo.com emails, which all goes to
> spam on many systems.

It actually didn't, but thanks for the heads up anyway.


> That's a known issue, distributed between the slow firmware in that
> camera, UVC driver not being very smart, and GStreamer probing all
> possible feature on the camera before the camera starts.
> 
> I have found how to optimize this, but haven't found time (neither anyone
> to sponsor work). Let me know if you are interested.

I can't imagine the camera firmware or the UVC driver is entirely the issue,
considering ffmpeg, VLC, and qv4l2 can all initialize the camera
instantaneously.  I am interested in your optimization though.  I intend
this to record at the push of a button without access to a UI, so the delay
may be a problem at some point.


> For live source, the recorded time is includes initial GAPs indeed.
> That's normal, though there is some proposal on bugzilla to allow
> clipping that initial delay. 
> 
> https://bugzilla.gnome.org/show_bug.cgi?id=750794
> 
> ...
> 
> "videomixer" could be the wrong choice here, depending on the GStreamer
> version. In general, to be sure, use compositor.

Thanks, I'll be sure to try these out when I get home.



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