How do you put a frame on a video?

How do you put a frame on a video?

https://www.youtube.com/watch?v=zduHAHGVfgo

Can you put a border around a video?

Having a border around your video, GIF, or photo gives it a little bit of extra love. You can add a seasonable, stylized, textured, or branded border to make your media stand out. You can also put your video in context, like adding a device frame to a screencast.