put constant tile size temporarily

Azaion.Inference/inference.pyx

@@ -118,8 +118,9 @@ cdef class Inference:
             self.engine = OnnxEngine(res.data)
 
         self.model_height, self.model_width = self.engine.get_input_shape()
-        self.tile_width = self.model_width
-        self.tile_height = self.model_height
+        #todo: temporarily, send it from the client
+        self.tile_width = 550
+        self.tile_height = 550
 
     cdef preprocess(self, frames):
         blobs = [cv2.dnn.blobFromImage(frame,