Fix video output generation and HF deployment issues

inference.py

@@ -187,12 +187,13 @@ class ObjectTrackerInference:
             total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
             print(f"Video: {w}x{h}, {total_frames} frames")
             
-            fourcc = cv2.VideoWriter_fourcc(*'avc1')
-            out=cv2.VideoWriter(output_path, fourcc, fps, (w,h))
-            
+            fourcc = cv2.VideoWriter_fourcc(*'mp4v')
+            output_path = os.path.abspath(output_path)
+            out = cv2.VideoWriter(output_path, fourcc, fps, (w, h))
+
+
             if not out.isOpened():
-                fourcc = cv2.VideoWriter_fourcc(*'mp4v')
-                out=cv2.VideoWriter(output_path, fourcc, fps, (w,h))
+                raise RuntimeError("VideoWriter failed to open")
             
             # Reset state
             self.motion.prev_frame = None
@@ -215,7 +216,17 @@ class ObjectTrackerInference:
 
                 pos=self.position_model.predict(self.position_scaler.transform(feats))
                 size=self.size_model.predict(self.size_scaler.transform(feats))
-                pred=[int(pos[0,0]),int(pos[0,1]),int(size[0,0]),int(size[0,1])]
+                x = int(pos[0,0])
+                y = int(pos[0,1])
+                w1 = int(size[0,0])
+                h1 = int(size[0,1])
+
+                x = max(0, min(x, w - 1))
+                y = max(0, min(y, h - 1))
+                w1 = max(10, min(w1, w - x))
+                h1 = max(10, min(h1, h - y))
+
+                pred = [x, y, w1, h1]
 
                 self.template_update_counter+=1
                 if self.template_update_counter>=5 and self.prev_bbox is not None:
@@ -241,6 +252,10 @@ class ObjectTrackerInference:
 
                 # Draw tracked bounding box
                 x,y,w1,h1=pred
+                x = max(0, min(x, w - 1))
+                y = max(0, min(y, h - 1))
+                w1 = max(1, min(w1, w - x))
+                h1 = max(1, min(h1, h - y))
                 cv2.rectangle(frame,(x,y),(x+w1,y+h1),(0,255,0),2)
                 cv2.putText(frame,f'Frame: {frame_idx}',(10,30),cv2.FONT_HERSHEY_SIMPLEX,1,(255,255,255),2)