[Bug 769394] appsink callback race condition

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=769394

--- Comment #3 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
How do you ensure that setting the callbacks during PLAYING/PAUSED is actually
not racy? Switching from one callback to another would be rather uncontrolled,
you don't know when exactly the new callbacks are going to be called for the
first time in relation to the data flow.

That's why I suggested to disallow setting the callbacks in PAUSED/PLAYING. It
could just do a g_warning() in that case.


What's your use case for setting it in PAUSED/PLAYING?

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