Fixing tracking

app.py

@@ -243,11 +243,12 @@ def get_tracker(tracker: str, fps: float):
 
 
 def update_tracker(tracker, detections, frame):
-    if isinstance(tracker, trackers.SORTTracker):
+    tracker_name = tracker.__class__.__name__
+    if tracker_name == "SORTTracker":
         return tracker.update(detections)
-    elif isinstance(tracker, trackers.DeepSORTTracker):
+    elif tracker_name == "DeepSORTTracker":
         return tracker.update(detections, frame)
-    elif isinstance(tracker, sv.ByteTrack):
+    elif tracker_name == "ByteTrack":
         return tracker.update_with_detections(detections)
     else:
         raise ValueError(f"Invalid tracker: {tracker}")