StacktraceTop:?? () IA__g_object_notify (object=0x27ac980, property_name=<value optimized out>) cb_probe (pad=0x26a1880, e=<value optimized out>, user_data=0x27ac980) gst_marshal_BOOLEAN__POINTER (closure=0x283e3d0, return_value=0x4263cb40, IA__g_closure_invoke (closure=0x283e3d0, return_value=0x4263cb40,
StacktraceTop:?? () name=<value optimized out>) 0x27ac980) BOOLEAN_ _POINTER (closure=0x283e3d0, return_ value=0x4263cb4 0, invoke (closure=0x283e3d0, return_ value=0x4263cb4 0,
IA__g_object_notify (object=0x27ac980, property_
cb_probe (pad=0x26a1880, e=<value optimized out>, user_data=
gst_marshal_
IA__g_closure_