StacktraceTop:IA__g_quark_from_string (string=0x7f6d7e6af2fd "GstMessageState") gst_structure_empty_new (name=0x7f6d7e6af2fd "GstMessageState") at gststructure.c:184 gst_structure_new_valist (name=0x7f6d7e6af30b "e", firstfield=0x7f6d7e6af20d "old-state", gst_structure_new (name=0x7f6d7e6af30b "e", firstfield=0x7f6d7e6af2fd "GstMessageState") gst_message_new_state_changed (src=0x7babf0, oldstate=GST_STATE_NULL, newstate=GST_STATE_READY,
StacktraceTop: IA__g_quark_ from_string (string= 0x7f6d7e6af2fd "GstMessageState") empty_new (name=0x7f6d7e6 af2fd "GstMessageState") at gststructure.c:184 new_valist (name=0x7f6d7e6 af30b "e", firstfield= 0x7f6d7e6af20d "old-state", af30b "e", firstfield= 0x7f6d7e6af2fd "GstMessageState") new_state_ changed (src=0x7babf0, oldstate= GST_STATE_ NULL, newstate= GST_STATE_ READY,
gst_structure_
gst_structure_
gst_structure_new (name=0x7f6d7e6
gst_message_