Can someone explain livestreamer to me?

[rubiohiguey]

Hello

Can somebody be so nice and explain livestreamer to me?
I see several posts such as http://stream-recorder.com/forum/sho...67&postcount=2
where livestreamer is used.

I guess if AdobeHDS could be used (unencrypted f4m), posters would not suggest livestreamer.

So can somebody PLEASE explain to me what is the purpose of livestreamer and what does it do? I tried to understand it form livestreamer site but I am no wiser.

Is my supposition correct that livestreamer can actually somehow "record" protected/encrypted HDS streams?