[Bug 689730] osxvideosink hang the application when setting the pipeline to PLAYING state [multithreading]

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=689730
  GStreamer | gst-plugins-good | 0.10.31

--- Comment #13 from Alexey Chernov <4ernov at gmail.com> 2013-07-08 19:30:44 UTC ---
I seem to touch more accurate cause of this problem during the experiments: it
seems that gst_osx_video_sink_call_from_main_thread sometimes doesn't work when
it's called from thread other than main at some beginning stages. I was able to
reproduce in quite a stable way when moved
gst_osx_video_sink_osxwindow_create() call from *_change_state() to
*_set_caps() function and started gst-launch (no NS_APP_THREAD defined, Mac OS
X 10.7.5). And it became stucked.

Hope to find out something more tomorrow.

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