fix func of FfmpegLoad for unexpected file format

雾聪

2023-10-12 00e038e22009a2014ba52f315045d875e96c93a7

 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"