fix empty timestamp list inference

shixian.shi

2023-09-06 13c2af5de44d2ac4cb09677ab4fb07f37ade2b98

 funasr/bin/diar_inference_launch.py

@@ -453,7 +453,7 @@
        help="The batch size for inference",
    )
    group.add_argument(
        "--diar_smooth_size",
        "--smooth_size",
        type=int,
        default=121,
        help="The smoothing size for post-processing"