fix wrapper

vr180_matting/sam2_wrapper.py

@@ -57,21 +57,14 @@ class SAM2VideoMatting:
                         if sam2_repo_path.exists():
                             checkpoint_path = str(sam2_repo_path)
             
-            # Use the config path as-is (should be relative to SAM2 package)
+            # Use SAM2's build_sam2_video_predictor which returns the predictor directly
-            # Example: "configs/sam2.1/sam2.1_hiera_l.yaml"
+            # The predictor IS the model - no .model attribute needed
             self.predictor = build_sam2_video_predictor(
-                model_cfg, 
+                config_file=model_cfg, 
-                checkpoint_path,
+                ckpt_path=checkpoint_path,
                 device=self.device
             )
                 
-            # Enable memory optimizations
-            if self.memory_offload:
-                self.predictor.fill_hole_area = 8
-            
-            if self.fp16 and self.device == "cuda":
-                self.predictor.model.half()
-                
         except Exception as e:
             raise RuntimeError(f"Failed to load SAM2 model: {e}")