JinChow

Results 2 issues of JinChow

![image](https://github.com/MCG-NJU/VideoMAE/assets/69828589/a3d9b963-653d-4967-8d04-0b8f1b46654e) how can I sovle this problem

Need I make my own dataset like the data used in pre-train? ![image](https://github.com/facebookresearch/av_hubert/assets/69828589/3b48d469-86c4-477b-9753-a0c904b15a34)