Addd initial AiEngineGimbalControl class

tmp/opi_rtsp/aienginegimbalcontrol.cpp

@@ -0,0 +1,49 @@
+#include "aienginegimbalcontrol.h"
+
+
+AiEngineGimbalControl::AiEngineGimbalControl(QObject *parent)
+    : QObject{parent}
+{}
+
+
+AiEngineRectangle AiEngineGimbalControl::getGroupCoordinates(QVector<AiEngineObject> &objects)
+{
+    AiEngineRectangle groupRectangle;
+    groupRectangle.top    = 1000000;
+    groupRectangle.left   = 1000000;
+    groupRectangle.bottom = 0;
+    groupRectangle.right  = 0;
+
+    for (int i = 0; i < objects.size(); i++) {
+        const AiEngineRectangle &objectRectangle = objects[i].rectangle;
+
+        if (objectRectangle.top < groupRectangle.top) {
+            groupRectangle.top = objectRectangle.top;
+        }
+        if (objectRectangle.left < groupRectangle.left) {
+            groupRectangle.left = objectRectangle.left;
+        }
+        if (objectRectangle.bottom > groupRectangle.bottom) {
+            groupRectangle.bottom = objectRectangle.bottom;
+        }
+        if (objectRectangle.right > groupRectangle.right) {
+            groupRectangle.right = objectRectangle.right;
+        }
+    }
+
+    return groupRectangle;
+}
+
+
+void AiEngineGimbalControl::inferenceResultSlot(AiEngineInferenceResult result)
+{
+    // We got list of all recognized objects, but at least for now we will zoom to all objects at
+    // once and not for each invidually. Got minimal coordinates which contains the all objects.
+    AiEngineRectangle groupRect = getGroupCoordinates(result.objects);
+
+    // AI did inference with 640x360 resolution. Scale back to A8's 1280x720 resolution.
+    groupRect.top    *= 2;
+    groupRect.left   *= 2;
+    groupRect.bottom *= 2;
+    groupRect.right  *= 2;
+}