Why does YouTube videos with lots of greenery or trees cause lag?
In: Technology
Youtube videos are compressed in a way that makes it really efficient if not much changes. If the video is a person talking in front of a white background, that white background doesn’t change, so the actual data that makes up the information to display the white background doesn’t need to be streamed in constantly for the entire video.
When the video is made up of a bunch of small, differently colored spots (like you would see with trees and other greenery), especially if they are moving around, or the camera is moving around, then you need to load all the information for each spot/pixel in the video each time it changes.
Loading all that information takes more bandwidth, and if your network or computer struggles to keep up, you’ll experience that lag you’re talking about. Youtube will typically drop the video to a lower resolution to make up for this.
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