Fade in on open a media player file

i’m trying to open a media player file on a key pressure in BP, it works, but it opens with a sort of glitch effect, is there a way to make a FadeIn of the video?



what if the video itself starts with a fadein?

That’s the way that i’ve used 'till now to manage the problem, but now i’m in a situation where i can’t manage the video, so would be cool to have a method that works indipendently by the content.