Video Reactive Animation?

Hi! I know nothing about building in UE4, Blueprints, or game design. I am wondering though, is there a way to create an animation that would trigger in response to a specific action during a video stream? In other words, while live streaming, this animation clip would pop up on screen whenever the player character won a fight. Can an animation program be made to automatically react to a video instead of requiring a command input?

Thank you