How to choose the background color of video monitoring interface

Question

Recently, I am working on the UI of video monitoring system, and it include images, table, infographic, and etc. I am really hesitated how to choose background color.

Many days ago, many good guys told me why i need to use dark color as background (The question I ask before). But, I found out Youtube and some ither system like Luxriot using light color as background. It make me so confused. Does anyone can tell me why someone use light color like Youtube and Luxriot, why someone use dark color. If I choose dark as background, why? If I choose light color, why?

Really appreciate!!

Answer 1

And Apple uses white background for their videos on website. While using light background colors, make sure you apply shadows to the player so the visual content stands out.

Take a loot at the Video Player UX on Pinterest

Here are some aspects of dark color