playbin_bus_call:GstBusFunc   xtlang

(bind-func playbin_bus_call:GstBusFunc
  (lambda (bus msg data)
    (let ((playz (tref (cast data userdata*) 1))
    (msgtype (tref msg 1))
    (time (tref msg 2))
          (seq (tref msg 4)))
      (cond ((<> (& GST_MESSAGE_EOS msgtype) 0)
             ;; (printf "END OF STREAM!\n")
             (gst_element_set_state playz GST_STATE_NULL)
             (gst_object_unref (cast playz gpointer)) ;; does playz release sink?
             (free data)
       1)
      ((<> (& GST_MESSAGE_ERROR msgtype) 0)
       (let ((debug:|1,i8*|* (alloc))
       (error:|1,GError*|* (alloc)))
         (gst_message_parse_error msg (cast error GError**) (cast debug i8**))
         (g_free (pref debug 0))
         (printf "GstError: %s\n" (tref (pref error 0) 2))
         (g_error_free (pref error 0))
         1))
            ((<> (& msgtype GST_MESSAGE_WARNING) 0)
             (printf "WARNING: %s\n" (gst_message_type_get_name msgtype))
             1)
      (else
             ;; (printf "MSG: %d:%s\n" msgtype (gst_message_type_get_name msgtype))
             1))
      1)))