Openvino models (#14283)

* Enable model conversion cache for openvino

* Use openvino directly for onnx embeddings if available

* Don't fail if zmq is busy

frigate/comms/dispatcher.py

@@ -142,10 +142,11 @@ class Dispatcher:
             )
 
         def handle_update_model_state():
-            model = payload["model"]
-            state = payload["state"]
-            self.model_state[model] = ModelStatusTypesEnum[state]
-            self.publish("model_state", json.dumps(self.model_state))
+            if payload:
+                model = payload["model"]
+                state = payload["state"]
+                self.model_state[model] = ModelStatusTypesEnum[state]
+                self.publish("model_state", json.dumps(self.model_state))
 
         def handle_model_state():
             self.publish("model_state", json.dumps(self.model_state.copy()))

frigate/comms/inter_process.py

@@ -65,8 +65,11 @@ class InterProcessRequestor:
 
     def send_data(self, topic: str, data: any) -> any:
         """Sends data and then waits for reply."""
-        self.socket.send_json((topic, data))
-        return self.socket.recv_json()
+        try:
+            self.socket.send_json((topic, data))
+            return self.socket.recv_json()
+        except zmq.ZMQError:
+            return ""
 
     def stop(self) -> None:
         self.socket.close()