[Bug 787293] New: glimagesink: met segment fault when exit app on wayland

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=787293

            Bug ID: 787293
           Summary: glimagesink: met segment fault when exit app on
                    wayland
    Classification: Platform
           Product: GStreamer
           Version: 1.12.x
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: jared.hu at nxp.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

I notice that there will be Segmentation fault when stop glimagesink in
wayland. The root cause is that eglTerminate call is integrated into
GstGLDisplyEGL, GstGLDisplayWayland will hold an instance of GstGLDisplyEGL
when egl context call to gst_gl_display_egl_from_gl_display. When we unref
GstGLDisplayWayland, seems that it will destroy GstGLDisplayWayland first and
the destroy the hold instance of GstGLDisplyEGL. This will cause eglTerminate
be called after wl_display_disconnect which lead to Segmentation fault.

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