.
Thread 4 (process 17710):
#0  0xb80ae430 in __kernel_vsyscall ()
#1  0xb728ecf9 in __lll_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb728a129 in _L_lock_89 () from /lib/tls/i686/cmov/libpthread.so.0
#3  0xb7289a32 in pthread_mutex_lock ()
   from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb73158c1 in g_static_rec_mutex_lock () from /usr/lib/libglib-2.0.so.0
#5  0xb75d3fb8 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#6  0xb75ddfe9 in gst_pad_activate_push ()
   from /usr/lib/libgstreamer-0.10.so.0
#7  0xb75ded9d in gst_pad_set_active () from /usr/lib/libgstreamer-0.10.so.0
#8  0xb75c32ab in ?? () from /usr/lib/libgstreamer-0.10.so.0
#9  0xb75d04f7 in gst_iterator_fold () from /usr/lib/libgstreamer-0.10.so.0
#10 0xb75c2d2f in ?? () from /usr/lib/libgstreamer-0.10.so.0
#11 0xb75c2e6d in ?? () from /usr/lib/libgstreamer-0.10.so.0
#12 0xb75c31f9 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#13 0xb557bb44 in ?? () from /usr/lib/gstreamer-0.10/libgstffmpeg.so
#14 0xb75bf2c8 in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
#15 0xb75c222c in ?? () from /usr/lib/libgstreamer-0.10.so.0
#16 0xb75be4f2 in gst_element_set_state ()
   from /usr/lib/libgstreamer-0.10.so.0
#17 0xb75b02f7 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#18 0xb69a3eb7 in ?? () from /usr/lib/gstreamer-0.10/libgstdecodebin.so
#19 0xb75bf2c8 in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
#20 0xb75c222c in ?? () from /usr/lib/libgstreamer-0.10.so.0
#21 0xb75be4f2 in gst_element_set_state ()
   from /usr/lib/libgstreamer-0.10.so.0
#22 0xb75b02f7 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#23 0xb75e1f9a in ?? () from /usr/lib/libgstreamer-0.10.so.0
#24 0xb75bf2c8 in gst_element_change_state ()
   from /usr/lib/libgstreamer-0.10.so.0
#25 0xb75c222c in ?? () from /usr/lib/libgstreamer-0.10.so.0
#26 0xb75be4f2 in gst_element_set_state ()
   from /usr/lib/libgstreamer-0.10.so.0
#27 0x080512d3 in ?? ()
#28 0x0804e965 in ?? ()
#29 0xb73c5765 in ?? () from /lib/libdbus-1.so.3
#30 0xb73b7144 in dbus_connection_dispatch () from /lib/libdbus-1.so.3
#31 0xb73e96bd in ?? () from /usr/lib/libdbus-glib-1.so.2
#32 0xb72eaaf8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0xb72ee05b in ?? () from /usr/lib/libglib-2.0.so.0
#34 0xb72ee52a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#35 0x0804df13 in ?? ()
#36 0xb7134775 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#37 0x0804dc01 in ?? ()
.
Thread 3 (process 17746):
#0  0xb80ae430 in __kernel_vsyscall ()
#1  0xb728c0e5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb75fb70e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#3  0xb7316fe6 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0xb731597f in ?? () from /usr/lib/libglib-2.0.so.0
#5  0xb72884ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#6  0xb720249e in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 2 (process 17761):
#0  0xb80ae430 in __kernel_vsyscall ()
#1  0xb728c0e5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6951754 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#3  0xb75d8ac5 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#4  0xb75d9eba in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#5  0xb55093a0 in ?? () from /usr/lib/gstreamer-0.10/libgstasf.so
#6  0xb5513886 in ?? () from /usr/lib/gstreamer-0.10/libgstasf.so
#7  0xb75fb593 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#8  0xb7316fe6 in ?? () from /usr/lib/libglib-2.0.so.0
#9  0xb731597f in ?? () from /usr/lib/libglib-2.0.so.0
#10 0xb72884ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#11 0xb720249e in clone () from /lib/tls/i686/cmov/libc.so.6
.
Thread 1 (process 17745):
#0  0xb7197377 in memset () from /lib/tls/i686/cmov/libc.so.6
#1  0xb4cde99c in avcodec_default_get_buffer ()
   from /usr/lib/i686/cmov/libavcodec.so.52
#2  0xb5f27d30 in ?? ()
#3  0x80808080 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)