How to cut an (embed)twitch clip and find the end of the video

API
1

I’ve been tasked with making a copy of one popular service in college. I’m making a video donation function where viewers send twitch clip videos to streamers like the one in twip.
I can’t specify how long the twitch clip plays, and when the twitch clip video ends, I don’t know if the video is over or still playing.
The site I referenced is here.

help me god

2

The Clips Embed is “dumb” is doesn’t broadcast any events, progress, or other information about the player you will need a uservoice to request this functionality (or to upvote an existing request) https://twitch.uservoice.com/forums/310213-developers