#0  0x00007ffff1d7bcf2 in g_type_is_a (type=<optimized out>, 
    iface_type=<optimized out>) at gtype.c:3503
#1  0x00007ffff1d7e7d5 in g_type_check_value_holds (value=value@entry=
    0x7fffffffcb08, type=type@entry=220) at gtype.c:4147
#2  0x00007ffff73058e2 in gst_value_subtract (dest=dest@entry=0x7fffffffcaf0, 
    minuend=minuend@entry=0x7fffffffcb08, subtrahend=0x33bdd50)
    at gstvalue.c:3864
#3  0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffcb08, 
    dest=0x7fffffffcbc8, subtrahend=<optimized out>) at gstvalue.c:3267
#4  gst_value_subtract (dest=dest@entry=0x7fffffffcbc8, minuend=minuend@entry=
    0x7fffffffcbb0, subtrahend=0x33bdcb8) at gstvalue.c:3867
#5  0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffcbb0, 
    dest=0x7fffffffcc70, subtrahend=<optimized out>) at gstvalue.c:3267
#6  gst_value_subtract (dest=dest@entry=0x7fffffffcc70, minuend=minuend@entry=
    0x7fffffffcc88, subtrahend=0x33bdb10) at gstvalue.c:3867
#7  0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffcc88, 
    dest=0x7fffffffcd48, subtrahend=<optimized out>) at gstvalue.c:3267
#8  gst_value_subtract (dest=dest@entry=0x7fffffffcd48, minuend=minuend@entry=
    0x7fffffffcd30, subtrahend=0x33bd728) at gstvalue.c:3867
#9  0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffcd30, 
    dest=0x7fffffffcdf0, subtrahend=<optimized out>) at gstvalue.c:3267
#10 gst_value_subtract (dest=dest@entry=0x7fffffffcdf0, minuend=minuend@entry=
    0x7fffffffce08, subtrahend=0x33ba930) at gstvalue.c:3867
#11 0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffce08, 
    dest=0x7fffffffceb0, subtrahend=<optimized out>) at gstvalue.c:3267
#12 gst_value_subtract (dest=dest@entry=0x7fffffffceb0, minuend=minuend@entry=
    0x7fffffffcec8, subtrahend=0x33afb90) at gstvalue.c:3867
#13 0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffcec8, 
    dest=0x7fffffffcf88, subtrahend=<optimized out>) at gstvalue.c:3267
#14 gst_value_subtract (dest=dest@entry=0x7fffffffcf88, minuend=minuend@entry=
    0x7fffffffcf70, subtrahend=0x33996c8) at gstvalue.c:3867
#15 0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffcf70, 
    dest=0x7fffffffd030, subtrahend=<optimized out>) at gstvalue.c:3267
#16 gst_value_subtract (dest=dest@entry=0x7fffffffd030, minuend=minuend@entry=
    0x7fffffffd048, subtrahend=0x336cf20) at gstvalue.c:3867
#17 0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffd048, 
    dest=0x7fffffffd0f0, subtrahend=<optimized out>) at gstvalue.c:3267
#18 gst_value_subtract (dest=dest@entry=0x7fffffffd0f0, minuend=minuend@entry=
    0x7fffffffd108, subtrahend=0x32bef20) at gstvalue.c:3867
#19 0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffd108, 
    dest=0x7fffffffd1b0, subtrahend=<optimized out>) at gstvalue.c:3267
#20 gst_value_subtract (dest=dest@entry=0x7fffffffd1b0, minuend=minuend@entry=
    0x7fffffffd1c8, subtrahend=0x2f3bf30) at gstvalue.c:3867
#21 0x00007ffff7305b6c in gst_value_subtract_list (minuend=0x7fffffffd1c8, 
    dest=0x0, subtrahend=<optimized out>) at gstvalue.c:3267
#22 gst_value_subtract (dest=dest@entry=0x0, minuend=<optimized out>, 
    subtrahend=subtrahend@entry=0x2f1ed58) at gstvalue.c:3867
#23 0x00007ffff7305ae0 in gst_value_subtract_from_list (subtrahend=0x2f1ed58, 
    dest=0x0, minuend=<optimized out>) at gstvalue.c:3226
#24 gst_value_subtract (dest=dest@entry=0x0, minuend=minuend@entry=0x39a33e8, 
    subtrahend=subtrahend@entry=0x2f1ed58) at gstvalue.c:3865
#25 0x00007ffff72e8dc5 in gst_caps_structure_is_subset_field (
    field_id=<optimized out>, value=0x39a33e8, user_data=<optimized out>)
    at gststructure.c:3142
#26 0x00007ffff72e9451 in gst_structure_foreach (structure=0x37e56d0, func=
    0x7ffff72e8d50 <gst_caps_structure_is_subset_field>, user_data=0x2e85700)
    at gststructure.c:1097
#27 0x00007ffff72a660c in gst_caps_merge_structure (caps=caps@entry=0x11a0980, 
    structure=0x37e56d0) at gstcaps.c:739
#28 0x00007ffff72a7904 in gst_caps_intersect_first (caps2=0x11a09c0, caps1=
    0x11a0b80) at gstcaps.c:1425
#29 gst_caps_intersect_full (caps1=caps1@entry=0x11a0b80, caps2=caps2@entry=
    0x11a09c0, mode=mode@entry=GST_CAPS_INTERSECT_FIRST) at gstcaps.c:1454
#30 0x00007ffff7583fe4 in gst_base_transform_getcaps (pad=0x10bb1c0 [GstPad])
    at gstbasetransform.c:768
#31 0x00007ffff72c54e6 in gst_pad_get_caps_unlocked (pad=pad@entry=
    0x10bb1c0 [GstPad]) at gstpad.c:2254
#32 0x00007ffff72c8b05 in gst_pad_get_caps_reffed (pad=pad@entry=
    0x10bb1c0 [GstPad]) at gstpad.c:2338
#33 0x00007ffff72f992b in gst_element_get_compatible_pad (
    element=element@entry=0x10b8490 [GstCapsFilter], pad=pad@entry=
    0x10bb1c0 [GstPad], caps=caps@entry=0x0) at gstutils.c:1146
#34 0x00007ffff72fa60a in gst_element_link_pads_full (src=
    0x11a2060 [GstVideoScale], srcpadname=<optimized out>, dest=
    0x10b8490 [GstCapsFilter], destpadname=<optimized out>, flags=
    GST_PAD_LINK_CHECK_CAPS) at gstutils.c:1799
#35 0x00007fffe001743a in ?? ()
   from /usr/lib64/gstreamer-0.10/libgstcamerabin.so
#36 0x00007fffe00175df in ?? ()
   from /usr/lib64/gstreamer-0.10/libgstcamerabin.so
#37 0x00007fffe00177cd in ?? ()
   from /usr/lib64/gstreamer-0.10/libgstcamerabin.so
#38 0x00007fffe000baf6 in ?? ()
   from /usr/lib64/gstreamer-0.10/libgstcamerabin.so
#39 0x00007ffff72b2d6c in gst_element_change_state (element=element@entry=
    0xa122c0 [GstCameraBin], transition=transition@entry=
    GST_STATE_CHANGE_NULL_TO_READY) at gstelement.c:2761
#40 0x00007ffff72b36b8 in gst_element_set_state_func (element=
    0xa122c0 [GstCameraBin], state=GST_STATE_PLAYING) at gstelement.c:2717
#41 0x00007ffff7bd385c in cheese_camera_play (camera=0x762cd0 [CheeseCamera])
    at libcheese/cheese-camera.c:716
#42 0x0000000000416644 in cheese_main_window_setup_camera (self=
    0xccc020 [CheeseMainWindow], uri=<optimized out>)
    at src/cheese-window.c:5057
#43 0x0000000000417504 in cheese_main_on_app_activate (self=
    0x8d2700 [CheeseMain]) at src/cheese-main.c:205
#44 0x00007ffff1d5c664 in g_closure_invoke (closure=0xaa9b10, 
    return_value=return_value@entry=0x0, n_param_values=1, 
    param_values=param_values@entry=0x7fffffffdab0, 
    invocation_hint=invocation_hint@entry=0x7fffffffda50) at gclosure.c:777
#45 0x00007ffff1d6d6d8 in signal_emit_unlocked_R (node=node@entry=0xb99b00, 
    detail=detail@entry=0, instance=instance@entry=0x8d2700, 
    emission_return=emission_return@entry=0x0, 
    instance_and_params=instance_and_params@entry=0x7fffffffdab0)
    at gsignal.c:3547
#46 0x00007ffff1d7566d in g_signal_emit_valist (instance=0x8d2700, 
    signal_id=<optimized out>, detail=0, var_args=var_args@entry=
    0x7fffffffdcf8) at gsignal.c:3296
#47 0x00007ffff1d757c2 in g_signal_emit (instance=instance@entry=0x8d2700, 
    signal_id=<optimized out>, detail=detail@entry=0) at gsignal.c:3352
#48 0x00007ffff2d698bb in g_application_activate (
    application=application@entry=0x8d2700 [CheeseMain]) at gapplication.c:1303
#49 0x00000000004171ac in cheese_main_real_local_command_line (base=
    0x8d2700 [CheeseMain], arguments=0x7fffffffde50, exit_status=
    0x7fffffffde4c) at src/cheese-main.c:277
#50 0x00007ffff2d69d58 in g_application_run (application=application@entry=
    0x8d2700 [CheeseMain], argc=<optimized out>, argv=0x7fffffffdfa8)
    at gapplication.c:1457
#51 0x0000000000417738 in _vala_main (args=0x7fffffffdfa8, args_length1=1)
    at src/cheese-main.c:469
#52 0x00007ffff147c735 in __libc_start_main (main=0x40c710 <main>, argc=1, 
    ubp_av=0x7fffffffdfa8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fffffffdf98) at libc-start.c:226
#53 0x000000000040c761 in _start ()
