[gstreamer-bugs] [Bug 505770] gst_element_get_state() should unblock if element posts an error

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=505770



--- Comment #10 from Wim Taymans <wim.taymans at gmail.com> 2009-09-10 09:51:14 UTC ---
gstbin has a sync bus handler where it receives all bus messages from all
children. When you see and error, see if there is a state change going on, mark
the state change as error and signal the element state gcond to unblock the
pending wait.

The reason why it's not currently done is because it is not deterministic.
Sometimes a state change would work without error (and you get the error later)
or sometimes it would fail because the error message was posted faster.

Maybe it's better to unblock the gcond without changing the state change return
value. It needs some thinking.

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