我想让文本标题在视频的前半段显示，所以我把timeinfo设为从0开始，并通过movie的持续时间将它设置为运行到一半时结束。

I wanted the text caption to appear in the first half of the video, so I set the TimeInfo to start at 0 and end halfway through the movie's duration.

youdao

我想让文本标题在视频的前半段显示，所以我把timeinfo设为从0开始，并通过movie的持续时间将它设置为运行到一半时结束。

I wanted the text caption to appear in the first half of the video, so I set the TimeInfo to start at 0 and end halfway through the movie's duration.

youdao