message: + height/width mutable flag
  is_input_flag
diff: @@ -99,7 +99,8 @@ class ImagePreprocessor : public Preprocessor {
  std::unique_ptr<vision::FrameBufferUtils> frame_buffer_utils_;
  // Is true if the model expects dynamic image shape, false otherwise.
  - bool is_input_dynamic_ = false;
  + bool is_height_mutable_ = false;
  + bool is_width_mutable_ = false;
  };
  } // namespace processor
  