.
Thread 2 (Thread 12490):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:211
No locals.
#1  0x00007fb423092662 in ?? () from /usr/lib/libgthread-2.0.so.0
No symbol table info available.
#2  0x00007fb422bc8351 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fb422c18861 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fb422c16954 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fb4234e49ca in start_thread (arg=<value optimised out>)
    at pthread_create.c:300
        __res = <value optimised out>
        pd = 0x7fb41b86a710
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140411532650256, 
                -4145284530633585979, 0, 0, 0, 140411532650256, 
                4112009263925807813, 4111992283372178117}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, 
            data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <value optimised out>
        robust = <value optimised out>
        freesize = <value optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fb4226fd38d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#7  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 12489):
#0  0x00007fb422c0ccde in g_slist_prepend () from /lib/libglib-2.0.so.0
No symbol table info available.
#1  0x00007fb4232a7dbb in ?? () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#2  0x00007fb4232a8cf1 in g_object_newv () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#3  0x00007fb4232a975d in g_object_new_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#4  0x00007fb4232a99a1 in g_object_new () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007fb42452e1de in gst_static_pad_template_get ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#6  0x00007fb41ae65582 in ?? ()
   from /usr/lib/gstreamer-0.10/libgstdecodebin.so
No symbol table info available.
#7  0x00007fb4232c451f in g_type_class_ref ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#8  0x00007fb4232a95dd in g_object_new_valist ()
   from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007fb4232a99a1 in g_object_new () from /usr/lib/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007fb424513395 in gst_element_factory_create ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#11 0x00007fb424513c8f in gst_element_factory_make ()
   from /usr/lib/libgstreamer-0.10.so.0
No symbol table info available.
#12 0x0000000000409d19 in ?? ()
No symbol table info available.
#13 0x000000000040afaf in ?? ()
No symbol table info available.
#14 0x0000000000408aee in ?? ()
No symbol table info available.
#15 0x00007fb4237175ce in ?? () from /lib/libdbus-1.so.3
No symbol table info available.
#16 0x00007fb42370b3cc in dbus_connection_dispatch () from /lib/libdbus-1.so.3
No symbol table info available.
#17 0x00007fb423943e45 in ?? () from /usr/lib/libdbus-glib-1.so.2
No symbol table info available.
#18 0x00007fb422bed432 in g_main_context_dispatch ()
   from /lib/libglib-2.0.so.0
No symbol table info available.
#19 0x00007fb422bf12b8 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#20 0x00007fb422bf17c5 in g_main_loop_run () from /lib/libglib-2.0.so.0
No symbol table info available.
#21 0x00000000004082b0 in ?? ()
No symbol table info available.
#22 0x00007fb422635c4d in __libc_start_main (main=<value optimised out>, 
    argc=<value optimised out>, ubp_av=<value optimised out>, 
    init=<value optimised out>, fini=<value optimised out>, 
    rtld_fini=<value optimised out>, stack_end=0x7fffe6249818)
    at libc-start.c:226
        result = <value optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -4145284530633585979, 
                4226976, 140737054545952, 0, 0, 4145336853245577925, 
                4111990316699601605}, mask_was_saved = 0}}, priv = {pad = {
              0x0, 0x0, 0x411000, 0x7fffe6249828}, data = {prev = 0x0, 
              cleanup = 0x0, canceltype = 4263936}}}
        not_first_call = <value optimised out>
#23 0x0000000000407fc9 in ?? ()
No symbol table info available.
#24 0x00007fffe6249818 in ?? ()
No symbol table info available.
#25 0x000000000000001c in ?? ()
No symbol table info available.
#26 0x0000000000000002 in ?? ()
No symbol table info available.
#27 0x00007fffe6249b4d in ?? ()
No symbol table info available.
#28 0x00007fffe6249b73 in ?? ()
No symbol table info available.
#29 0x0000000000000000 in ?? ()
No symbol table info available.