set the operational status for sending universes

protocol/sacn/universe.cpp

@@ -474,10 +474,16 @@ void Universe::tx_loop_()
       enable = tx_enable_;
       tx_control_mutex_.unlock();
 
-      // if shutting down, send stream_terminated in this last update
-      if (!enable)
+
+      if (enable)
+        {
+          if (active_data_slots)
+              setStatus(Status::DMX_ACTIVE);
+        }
+      else
         {
           provenance_->options.stream_terminated = true; // set the stream_terminated bit
+          setStatus(Status::sACN_TERMINATED);            // note the changed operating status
           terminated_resend--;      // stream_terminated must be sent 3 times
           retransmission_count = 0; // stay throttled up through the termination sequence
         }