#0  0x00000000 in ?? ()
#1  0xb718c6b4 in IA__g_object_set_valist (object=0xaf85e6f0, first_property_name=0xb48af3d2 "mute", 
#2  0xb718c946 in IA__g_object_set (_object=0xaf85e6f0, first_property_name=0xb48af3d2 "mute")
#3  0xb48a6097 in set_active_source (play_base_bin=0x83e0018, type=GST_STREAM_TYPE_AUDIO, source_num=0)
#4  0xb48a64f7 in setup_substreams (play_base_bin=0x83e0018) at gstplaybasebin.c:1709
  [Error: gstplaybasebin.c was not found in source tree]
#5  0xb48a7ade in group_commit (play_base_bin=0x83e0018, fatal=<value optimized out>, 
#6  0xb7192c09 in IA__g_cclosure_marshal_VOID__VOID (closure=0x8773f78, return_value=0x0, n_param_values=1, 
#7  0xb7185772 in IA__g_closure_invoke (closure=0x8773f78, return_value=0x0, n_param_values=1, 
#8  0xb7196323 in signal_emit_unlocked_R (node=0x811df98, detail=0, instance=0x8282228, emission_return=0x0, 
#9  0xb7197847 in IA__g_signal_emit_valist (instance=0x8282228, signal_id=16, detail=0, 
#10 0xb7197a09 in IA__g_signal_emit (instance=0x8282228, signal_id=16, detail=0)
#11 0xb71e8e77 in gst_element_no_more_pads (element=0x8282228) at gstelement.c:824
  [Error: gstelement.c was not found in source tree]
#12 0xb48458ae in dynamic_remove (dynamic=<value optimized out>) at gstdecodebin.c:1291
  [Error: gstdecodebin.c was not found in source tree]
#13 0xb7192c09 in IA__g_cclosure_marshal_VOID__VOID (closure=0x861b6a8, return_value=0x0, n_param_values=1, 
#14 0xb7185772 in IA__g_closure_invoke (closure=0x861b6a8, return_value=0x0, n_param_values=1, 
#15 0xb7196323 in signal_emit_unlocked_R (node=0x811df98, detail=0, instance=0x820abe0, emission_return=0x0, 
#16 0xb7197847 in IA__g_signal_emit_valist (instance=0x820abe0, signal_id=16, detail=0, 
#17 0xb7197a09 in IA__g_signal_emit (instance=0x820abe0, signal_id=16, detail=0)
#18 0xb71e8e77 in gst_element_no_more_pads (element=0x820abe0) at gstelement.c:824
  [Error: gstelement.c was not found in source tree]
#19 0xb46f211d in qtdemux_parse_tree (qtdemux=0x820abe0) at qtdemux.c:3548
  [Error: qtdemux.c was not found in source tree]
#20 0xb46f51a7 in gst_qtdemux_loop (pad=0x8697b30) at qtdemux.c:999
  [Error: qtdemux.c was not found in source tree]
#21 0xb7219a46 in gst_task_func (task=0x865a190, tclass=0x86ac358) at gsttask.c:192
  [Error: gsttask.c was not found in source tree]
#22 0xb6fdd0c8 in g_thread_pool_thread_proxy (data=0x86ac3e8)
#23 0xb6fdb5af in g_thread_create_proxy (data=0x8714ce0) at /build/buildd/glib2.0-2.14.1/glib/gthread.c:635
  [Error: /build/buildd/glib2.0-2.14.1/glib/gthread.c was not found in source tree]
#24 0xb7d1a46b in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#25 0xb6eb86de in clone () from /lib/tls/i686/cmov/libc.so.6