Qiniu cloud uploads video to get the first frame of video

Seven cattle cloud uploads the video to get the first frame of the video

After calling the qiniu cloud upload interface , After returning the video link, spell ?vframe/jpg/offset/0, It's the first frame of the video .
0 It can be incremented , Represents the seconds specified by the video , for example ?vframe/jpg/offset/1 It's the first second of the video .

 Suppose the video address is 
http://video.test.com/video.mp4

The first frame of the video ：

http://video.test.com/video.mp4?vframe/jpg/offset/0

Yes, it's that simple