Choice of video quality is possible?

Question

PHP

Hello, please help me to solve the problem!
Bottom line:
When uploading a file to youtube.com video hosting, the video player automatically determines the quality of the video from one file and shows the appropriate option to users.
There is a video file. I use uppod web player for playback. Is it realistic to split quality automatically from one file?
Tools:
There is a server with root access and a dedicated channel. you can offer all possible options. It is possible to configure and install something like a media server. thanks in advance for the replies.

Answer 1

On YouTube it is divided into several with different quality. And issued separately. Well, at least it used to be.