StacktraceTop: g_type_check_instance_is_a (type_instance=0xa9e191a0, iface_type=561159456) at /build/buildd/glib2.0-2.30.1/./gobject/gtype.c:3952 gst_element_seek_simple (element=0xa9e191a0, format=GST_FORMAT_TIME, seek_flags=5, seek_pos=1455821333333) at gstutils.c:2417 gst_thumbnailer_create (thumbnailer=0x2181da80, cancellable=0x21818000, info=0xa9ea3e00) at gst-thumbnailer.c:329 tumbler_abstract_thumbnailer_create (thumbnailer=0x2181da80, cancellable=0x21818000, info=0xa9ea3e00) at tumbler-abstract-thumbnailer.c:244 tumbler_thumbnailer_create (thumbnailer=0x2181da80, cancellable=0x21818000, info=0xa9ea3e00) at tumbler-thumbnailer.c:148
StacktraceTop: check_instance_ is_a (type_instance= 0xa9e191a0, iface_type= 561159456) at /build/ buildd/ glib2.0- 2.30.1/ ./gobject/ gtype.c: 3952 seek_simple (element= 0xa9e191a0, format= GST_FORMAT_ TIME, seek_flags=5, seek_pos= 1455821333333) at gstutils.c:2417 r_create (thumbnailer= 0x2181da80, cancellable= 0x21818000, info=0xa9ea3e00) at gst-thumbnailer .c:329 abstract_ thumbnailer_ create (thumbnailer= 0x2181da80, cancellable= 0x21818000, info=0xa9ea3e00) at tumbler- abstract- thumbnailer. c:244 thumbnailer_ create (thumbnailer= 0x2181da80, cancellable= 0x21818000, info=0xa9ea3e00) at tumbler- thumbnailer. c:148
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