Streaming from line-in jack

[Elia S.]

Hello
I would like to ask you if my idea could be possibile.

Scenario:

I have multiple devices with an audio output, analog, mono, that comes out
with a standard cable that can be fit in the "LINE-IN" jack of my sound
card.

I would like to to a live streaming of the audio coming from the line-in
(audio low quality, mono) to an HTTP SERVER (may be the same machine), so I
can link that stream from a web page where I can play it on demand.

I managed to do it via Winamp + shoutcast, but It requires some software to
be opened.

I would like to do something that runs as a service and automatically when I
reboot the machine, streams the audio automatically.

Can someone help me?

thank you