[Bug 777354] v4l2src: Doesn't Stop After Device Removed

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=777354

--- Comment #9 from Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> ---
(In reply to Casey Zahorik from comment #8)
> We are looking at video0 not media0, though i guess they might be the same


/dev/media0 in your case is most likely the topology of the UCV Driver. Try:

  sudo media-ctl -p /dev/media0

To see the topology. Most likely the entity 1 will match /dev/video0. The error
in the log gives me the impression the kernel fails somehow, leaking a
reference or something, which leads to the topology still being active. 

> device. I have unfortunately tried the version of v4l2 that comes with
> ubuntu 16 lts and the newest stable build of it from their website directly
> with the same results. Would you have any other suggestions? Thanks!

You may try with vlc or mplayer, to see what happens. But I have doubt there is
anything wrong with GStreamer here.

  vlc v4l2://
  mplayer tv://

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