Video player on the site and downloading "pieces"

Question

HTML

On many video hosting sites, like Youtube\Ya.video\Rutube, the player does not load all the videos, but in "pieces". On Yandex, for example, only the tracking and the next “piece” are loaded.
This can be clearly seen, for example, in the network tab in the browser.

Very interested - with the help of what software can you organize video viewing on the site in this way?
As I understand it, it should be a video specially prepared / converted in a special way, as well as a flash player on the site that knows how to work with it all.
Interested in any paid / free solutions.

Answer 1

You can use for free (with some restrictions)
for example such a wonderful player flowplayer.org
The site has a lot of documentation and examples.
What you are asking about is called streaming uppod.ru/help/q=streaming You
don't need to specially convert videos in most cases,
for example, this plugin can work with MP4:
flash.flowplayer.org/demos/plugins/streaming/mp4-pseudostreaming. html