[Bug 753003] New: glimagesink: GstVideoOverlay crashes on widget resize (NSView / OS X)

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=753003

            Bug ID: 753003
           Summary: glimagesink: GstVideoOverlay crashes on widget resize
                    (NSView / OS X)
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Mac OS
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: fzwoch at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Created attachment 308361
  --> https://bugzilla.gnome.org/attachment.cgi?id=308361&action=edit
crash call stack

I'm using a playbin element from a wxWidgets application and setting the NSView
where to draw via the GstVideoOverlay interface. Everything works perfectly
fine, resizing the NSView, toggling fullscreen. No issues.

Then I stop and start over (that means: setting the state of the pipeline to
NULL and releasing it - then building a completely new pipeline, giving in the
same NSView as before).

The pipeline starts and runs just fine as before. *But* then as soon as I
resize the NSView I get a crash drawing to the OpenGL canvas. See attachment, I
don't have debug symbols in place here unfortunately. But maybe someone has an
idea what may go wring here from the call stack (attached).

Running the code on Windows where it uses the d3d video sink it works as
expected (Which does not necessarily imply that there couldn't be an oversight
in wxWidgets or in my code).

Any ideas or hints are appreciated.

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