#0  sbc_typefind (tf=0x7fff52b199e0, ignore=<value optimized out>)
#1  0x00002b015d338fe9 in gst_type_find_factory_call_function (
#2  0x00002b015d0c4b8c in gst_type_find_helper_get_range (obj=0x6db020, 
#3  0x00002b016345599f in gst_type_find_element_activate (pad=0x6d6170)
#4  0x00002b015d322c89 in gst_pad_set_active (pad=0x6d6170, active=1)
#5  0x00002b015d30c0fb in activate_pads (pad=0x6d6008, ret=0x7fff52b19bb0, 
#6  0x00002b015d3173f3 in gst_iterator_fold (it=0x6e0800, 
#7  0x00002b015d30bbf6 in iterator_activate_fold_with_resync (iter=0x6e0800, 
#8  0x00002b015d30bcd6 in gst_element_pads_activate (element=0x63c900, 
#9  0x00002b015d30bfe6 in gst_element_change_state_func (element=0x63c900, 
#10 0x00002b016345429a in gst_type_find_element_change_state (
#11 0x00002b015d308c20 in gst_element_change_state (element=0x6d6008, 
#12 0x00002b015d3090a3 in gst_element_set_state_func (element=0x63c900, 
#13 0x00002b015d2fcfc7 in gst_bin_change_state_func (element=0x6422a0, 
#14 0x00002b0163687715 in gst_decode_bin_change_state (element=0x6422a0, 
#15 0x00002b015d308c20 in gst_element_change_state (element=0x6d6008, 
#16 0x00002b015d3090a3 in gst_element_set_state_func (element=0x6422a0, 
#17 0x00002b015d2fcfc7 in gst_bin_change_state_func (element=0x642100, 
#18 0x00002b015d32586b in gst_pipeline_change_state (element=0x642100, 
#19 0x00002b015d308c20 in gst_element_change_state (element=0x6d6008, 
#20 0x00002b015d308d01 in gst_element_change_state (element=0x642100, 
#21 0x00002b015d3090a3 in gst_element_set_state_func (element=0x642100, 
#22 0x000000000040a16f in rb_metadata_load (md=0x632010, 
#23 0x0000000000408277 in _handle_message (connection=0x6461e0, 
#24 0x00002b015e54c119 in _dbus_object_tree_dispatch_and_unlock (
#25 0x00002b015e53f9bb in dbus_connection_dispatch (connection=0x6461e0)
#26 0x00002b015e319f75 in message_queue_dispatch (
#27 0x00002b015e9e1fd3 in IA__g_main_context_dispatch (context=0x646050)
#28 0x00002b015e9e52dd in g_main_context_iterate (context=0x646050, block=1, 
#29 0x00002b015e9e55ea in IA__g_main_loop_run (loop=0x68a9d0)
#30 0x0000000000407c83 in main (argc=<value optimized out>, 
#31 0x00002b015f0ceb44 in __libc_start_main () from /lib/libc.so.6
#32 0x0000000000407939 in _start ()