Update inference.py

inference.py

@@ -258,7 +258,7 @@ class Predictor:
         frame_count = len(video_frames)
         transformed_video_frames = []
 
-        batch_shape = (batch_size,) + video_frames[0].shape
+        batch_shape = (batch_size) + video_frames[0].shape
         frames = np.zeros(batch_shape, dtype=np.uint8)
         frame_idx = 0