Update inference.py

inference.py

@@ -281,7 +281,7 @@ class Predictor:
         # batch_shape = (batch_size) + video_frames[0].shape
         # frames = np.zeros(batch_shape, dtype=np.uint8)
         # frame_idx = 0
-        _shape = (batch_size, frame_height, frame_width, 3)
+        batch_shape = (batch_size, frame_height, frame_width, 3)
         frames = np.zeros(batch_shape, dtype=np.uint8)
         frame_idx = 0