没有投过

还不清楚

If a format is not appropriate, you have the option of changing the format. But you need to find first if the journal accepts videos. Perhaps they don't. Then you cannot submit it.

建议楼主看看官网的作者指南中支持什么样的视频格式，选择合适的视频上传，如果仍旧不能操作，可以给主编写信帮忙。
上传视频的要求如下：
Aspect ratio: 16:9 or 4:3
Maximum file size: 25 GB
Minimum video duration: 1 sec
Supported file formats: avi, wmv, mp4, mov, m2p, mp2, mpg, mpeg, flv, mxf, mts, m4v, 3gp，