[gstreamer-bugs] [Bug 571204] New: [pulsesink] PA assertion failure triggers abort

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: git
           Summary: [pulsesink] PA assertion failure triggers abort
           Product: GStreamer
           Version: git
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: manauw at skynet.be
         QAContact: gstreamer-bugs at lists.sourceforge.net
                CC: thaytan at mad.scientist.com
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Using pulseaudio >= 0.9.12:

gst-launch-0.10 -v audiotestsrc ! pulsesink
Setting pipeline to PAUSED ...
/GstPipeline:pipeline0/GstAudioTestSrc:audiotestsrc0.GstPad:src: caps =
audio/x-raw-int, endianness=(int)1234, signed=(boolean)true, width=(int)16,
depth=(int)16, rate=(int)44100, channels=(int)1
Pipeline is PREROLLING ...
E: thread-mainloop.c: Assertion '!m->thread || !pa_thread_is_running(m->thread)
|| !in_worker(m)' failed at pulse/thread-mainloop.c:170, function
pa_threaded_mainloop_lock(). Aborting.

Note that the problem does not occur without -v

Cause: 
gst_pulsesink_context_subscribe_cb issues a g_object_notify() on volume (from a
PA thread), which makes (a verbose) gst-launch query the volume property,
leading to a pa_threaded_mainloop_lock() from a PA (worker) thread, which is
what the assert() does not like.


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