Enables use of multiple TPUs in OPI5

misc/rtsp_ai_player/aiengineinference.h

@@ -17,6 +17,7 @@ public:
     AiEngineRectangle rectangle;
     float propability;
     int classId;
+    QString classStr;
 };
 
 
@@ -38,10 +39,11 @@ protected:
     cv::Mat resizeAndPad(const cv::Mat& src);
     QString mModelPath;
     bool mActive;
+    int mNumber;
 
 public slots:
     virtual void performInferenceSlot(cv::Mat frame) = 0;
-
+    virtual void initialize(int number) = 0;
 signals:
     void resultsReady(AiEngineInferenceResult results);
 };