(pitivi:17314): GStreamer-CRITICAL **: gst_object_ref: assertion `object != NULL' failed

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffb0fdb700 (LWP 17347)]
0x00007ffff071d6ec in g_type_check_instance_is_a (type_instance=type_instance@entry=0x7fffbc00b200, iface_type=<optimized out>) at gtype.c:3999
3999	  check = node && node->is_instantiatable && iface && type_node_conforms_to_U (node, iface, TRUE, FALSE);
Missing separate debuginfos, use: debuginfo-install python-2.7.5-1.fc19.x86_64
(gdb) bt
#0  0x00007ffff071d6ec in g_type_check_instance_is_a (type_instance=type_instance@entry=0x7fffbc00b200, iface_type=<optimized out>) at gtype.c:3999
#1  0x00007fffee859892 in gst_element_get_static_pad (element=0x7fffbc00b200, name=name@entry=0x7fffd53a565c "sink") at gstelement.c:884
#2  0x00007fffd5381b1d in autoplug_select_cb (decodebin=<optimized out>, pad=<optimized out>, caps=<optimized out>, factory=0xa80440, group=0x2800478) at gstplaybin2.c:4258
#3  0x0000003008405cfc in ffi_call_unix64 () from /lib64/libffi.so.6
#4  0x000000300840562c in ffi_call () from /lib64/libffi.so.6
#5  0x00007ffff06fd12d in g_cclosure_marshal_generic (closure=0x2819240, return_gvalue=0x7fffb0fd9730, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>,
    marshal_data=0x0) at gclosure.c:1454
#6  0x00007ffff06fc918 in g_closure_invoke (closure=0x2819240, return_value=return_value@entry=0x7fffb0fd9730, n_param_values=4, param_values=param_values@entry=0x7fffb0fd97e0,
    invocation_hint=invocation_hint@entry=0x7fffb0fd9780) at gclosure.c:777
#7  0x00007ffff070d88d in signal_emit_unlocked_R (node=node@entry=0x2754600, detail=detail@entry=0, instance=instance@entry=0x275a720, emission_return=emission_return@entry=0x7fffb0fd98e0,
    instance_and_params=instance_and_params@entry=0x7fffb0fd97e0) at gsignal.c:3584
#8  0x00007ffff07151a2 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffb0fd9998) at gsignal.c:3338
#9  0x00007ffff07157a2 in g_signal_emit (instance=instance@entry=0x275a720, signal_id=<optimized out>, detail=detail@entry=0) at gsignal.c:3384
#10 0x00007fffd537654c in proxy_autoplug_select_signal (decodebin=<optimized out>, pad=<optimized out>, caps=<optimized out>, factory=<optimized out>, dec=0x275a720) at gsturidecodebin.c:1705
#11 0x0000003008405cfc in ffi_call_unix64 () from /lib64/libffi.so.6
#12 0x000000300840562c in ffi_call () from /lib64/libffi.so.6
#13 0x00007ffff06fd12d in g_cclosure_marshal_generic (closure=0x283a000, return_gvalue=0x7fffb0fd9e20, n_param_values=<optimized out>, param_values=<optimized out>, invocation_hint=<optimized out>,
    marshal_data=0x0) at gclosure.c:1454
#14 0x00007ffff06fc918 in g_closure_invoke (closure=0x283a000, return_value=return_value@entry=0x7fffb0fd9e20, n_param_values=4, param_values=param_values@entry=0x7fffb0fd9ed0,
    invocation_hint=invocation_hint@entry=0x7fffb0fd9e70) at gclosure.c:777
#15 0x00007ffff070d88d in signal_emit_unlocked_R (node=node@entry=0x2759cb0, detail=detail@entry=0, instance=instance@entry=0x7fffd804cf20, emission_return=emission_return@entry=0x7fffb0fd9fd0,
    instance_and_params=instance_and_params@entry=0x7fffb0fd9ed0) at gsignal.c:3584
#16 0x00007ffff07151a2 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffb0fda088) at gsignal.c:3338
#17 0x00007ffff07157a2 in g_signal_emit (instance=<optimized out>, signal_id=signal_id@entry=592, detail=detail@entry=0) at gsignal.c:3384
#18 0x00007fffd5373851 in connect_pad (chain=0x27cbe10, factories=0xfee720, caps=0x7fffb40505e0, pad=0x2761220, dpad=0x7fffc001ea10, src=0x7fffc0013400, dbin=0x7fffd804cf20) at gstdecodebin2.c:1984
#19 analyze_new_pad (dbin=dbin@entry=0x7fffd804cf20, src=src@entry=0x7fffc0013400, pad=pad@entry=0x2761220, caps=caps@entry=0x7fffb40505e0, chain=<optimized out>, chain@entry=0x27cbe10) at gstdecodebin2.c:1708
#20 0x00007fffd5375231 in pad_added_cb (element=element@entry=0x7fffc0013400, pad=pad@entry=0x2761220, chain=chain@entry=0x27cbe10) at gstdecodebin2.c:2521
#21 0x00007fffd53755b8 in caps_notify_cb (pad=0x2761220, unused=<optimized out>, chain=0x27cbe10) at gstdecodebin2.c:2637
#22 0x00007ffff06fc918 in g_closure_invoke (closure=0x7fffc0024280, return_value=return_value@entry=0x0, n_param_values=2, param_values=param_values@entry=0x7fffb0fda4e0,
    invocation_hint=invocation_hint@entry=0x7fffb0fda480) at gclosure.c:777
#23 0x00007ffff070d88d in signal_emit_unlocked_R (node=node@entry=0x8297a0, detail=detail@entry=225, instance=instance@entry=0x2761220, emission_return=emission_return@entry=0x0,
    instance_and_params=instance_and_params@entry=0x7fffb0fda4e0) at gsignal.c:3584
#24 0x00007ffff07154e3 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffb0fda668) at gsignal.c:3328
#25 0x00007ffff07157a2 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at gsignal.c:3384
#26 0x00007ffff0700c35 in g_object_dispatch_properties_changed (object=0x2761220, n_pspecs=8667536, pspecs=0x7fffbc0033f0) at gobject.c:1042
#27 0x00007fffee838994 in gst_object_dispatch_properties_changed (object=0x2761220, n_pspecs=1, pspecs=0x7fffb0fda7f8) at gstobject.c:439
#28 0x00007ffff0702683 in g_object_notify_by_spec_internal (pspec=<optimized out>, object=0x2761220) at gobject.c:1136
#29 g_object_notify_by_pspec (object=object@entry=0x2761220, pspec=<optimized out>) at gobject.c:1237
#30 0x00007fffee86d548 in store_sticky_event (pad=pad@entry=0x2761220, event=event@entry=0x2728300) at gstpad.c:4536
#31 0x00007fffee8772c3 in gst_pad_push_event (pad=pad@entry=0x2761220, event=0x2728300) at gstpad.c:4794
#32 0x00007fffc85c56a1 in gst_pad_set_caps (caps=0x7fffb40505e0, pad=0x2761220) at /opt/build/fedora/gnome-3.8/include/gstreamer-1.0/gst/gstcompat.h:54
#33 gst_mpegv_parse_update_src_caps (mpvparse=0x7fffc0013400) at gstmpegvideoparse.c:842
#34 gst_mpegv_parse_parse_frame (frame=0x7fffb4050540, frame=0x7fffb4050540, parse=0x7fffc0013400) at gstmpegvideoparse.c:882
#35 gst_mpegv_parse_handle_frame (parse=0x7fffc0013400, frame=0x7fffb4050540, skipsize=<optimized out>) at gstmpegvideoparse.c:693
#36 0x00007fffed9c1aa0 in gst_base_parse_handle_buffer (parse=parse@entry=0x7fffc0013400, buffer=<optimized out>, skip=skip@entry=0x7fffb0fdabec, flushed=flushed@entry=0x7fffb0fdabf0) at gstbaseparse.c:1886
#37 0x00007fffed9c4f9a in gst_base_parse_chain (pad=<optimized out>, parent=<optimized out>, buffer=<optimized out>) at gstbaseparse.c:2755
#38 0x00007fffee86f935 in gst_pad_chain_data_unchecked (data=0x7fff9c05a500, type=4112, pad=0x7fff9c011ce0) at gstpad.c:3718
#39 gst_pad_push_data (pad=0x7fff9800a280, type=type@entry=4112, data=<optimized out>, data@entry=0x7fff9c05a500) at gstpad.c:3948
#40 0x00007fffee8767a6 in gst_pad_push (pad=<optimized out>, buffer=buffer@entry=0x7fff9c05a500) at gstpad.c:4051
#41 0x00007fffe9af6c21 in gst_single_queue_push_one (object=0x7fff9c05a500, sq=0x7fffc0014c10, mq=0x7fffc000d020) at gstmultiqueue.c:1059
#42 gst_multi_queue_loop (pad=<optimized out>) at gstmultiqueue.c:1307
#43 0x00007fffee89d4b9 in gst_task_func (task=0x7fffbc006360) at gsttask.c:316
---Type <return> to continue, or q <return> to quit---
#44 0x00007ffff022c2f6 in g_thread_pool_thread_proxy (data=<optimized out>) at gthreadpool.c:309
#45 0x00007ffff022b935 in g_thread_proxy (data=0x2806230) at gthread.c:798
#46 0x0000003006007c53 in start_thread () from /lib64/libpthread.so.0
#47 0x00000030058f513d in clone () from /lib64/libc.so.6