[Bug 747236] New: opengl: OpenGL Pipeline state can't be set PLAYING=>READY=>PLAYING

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=747236

            Bug ID: 747236
           Summary: opengl: OpenGL Pipeline state can't be set
                    PLAYING=>READY=>PLAYING
    Classification: Platform
           Product: GStreamer
           Version: git master
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: lubosz at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

The following pipeline fails to be set from PLAYING => READY => PLAYING

gst-launch-1.0 videotestsrc ! glupload ! glimagesink

Following crash occurs:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffdfdf8700 (LWP 8950)]
gst_gl_context_create_thread (context=0x7fffd8009480) at gstglcontext.c:1217
1217      window_class = GST_GL_WINDOW_GET_CLASS (context->window);
(gdb) bt
#0  gst_gl_context_create_thread (context=0x7fffd8009480) at
gstglcontext.c:1217
#1  0x00007ffff5b71625 in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00007ffff7731374 in start_thread () from /usr/lib/libpthread.so.0
#3  0x00007ffff746f27d in clone () from /usr/lib/libc.so.6
(gdb) 


Python GTK test:
https://gist.github.com/lubosz/51eafa1f2c947178b29e

PLAYING => NULL => PLAYING seems to work.

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