In a feed displaying 4:5 ratio video ads, how is the video shown on desktop?

When displaying 4:5 ratio video ads on desktop, the video is shown as a 1:1 ratio, which can result in the addition of black bars on either side of the video. This occurs because desktop screens typically favor wider aspect ratios such as 16:9 or 4:3, while the 4:5 format does not fully utilize the horizontal space available on these screens.

Therefore, to accommodate the 4:5 aspect ratio in a 1:1 format, the video is resized, leading to potential letterboxing (horizontal black bars) to fill the unused space on the sides. This adjustment maintains the video's original proportions, hence preserving the visual integrity, even though it may not maximize the display area efficiently. Understanding this concept about aspect ratios and how they interact with different screen formats is vital for effective media buying and ad placements.