[gstreamer-bugs] [Bug 619850] New: assertion failure when using videomixer

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=619850
  GStreamer | gst-plugins-good | 0.10.22

           Summary: assertion failure when using videomixer
    Classification: Desktop
           Product: GStreamer
           Version: 0.10.22
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: daf at rhydd.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


I have three video streams going into a videomixer. The crash seems to happen
when I seek one of the streamms.

Test case:

http://paste.debian.net/75084/

Backtrace:

** (mix.py:32358): CRITICAL **: gst_data_queue_pop: assertion
`GST_IS_DATA_QUEUE (queue)' failed

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb69e1b70 (LWP 32362)]
__pthread_mutex_lock (mutex=0x0) at pthread_mutex_lock.c:50
50    pthread_mutex_lock.c: No such file or directory.
    in pthread_mutex_lock.c
(gdb) bt
#0  __pthread_mutex_lock (mutex=0x0) at pthread_mutex_lock.c:50
#1  0xb775777f in gst_data_queue_flush (queue=0xb3091ee8) at gstdataqueue.c:305
#2  0xb750e53e in gst_multi_queue_loop (pad=0x85c3710) at gstmultiqueue.c:1127
#3  0xb76e0bd1 in gst_task_func (task=0xb280e338) at gsttask.c:271
#4  0xb76e2197 in default_func (tdata=0x8642490, pool=0x81fb808) at
gsttaskpool.c:68
#5  0xb7bf462c in g_thread_pool_thread_proxy (data=0x828fba8)
    at
/build/buildd-glib2.0_2.24.0-1-i386-o5zIuQ/glib2.0-2.24.0/glib/gthreadpool.c:315
#6  0xb7bf271f in g_thread_create_proxy (data=0x8364d40)
    at
/build/buildd-glib2.0_2.24.0-1-i386-o5zIuQ/glib2.0-2.24.0/glib/gthread.c:1893
#7  0xb7fb9585 in start_thread (arg=0xb69e1b70) at pthread_create.c:300
#8  0xb7f0c29e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

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