Convert stream URL to playlist type which Squeezebox accepts

There is a website which plays audio via the website's own player. Each time the web player is started,
it creates a new .aac stream. Unfortunately, the URL is embedded in a format expected by the webplayer and not a standard format
accepted by the Squeezebox.

For other radio stations which change daily, I have a cron in which perl modifies the Squeezebox compatible playlist.

For this service, I'd need to grab the .aac stream out of this format and just hand the URL raw to the Squeezebox (or add it to a playlist). It needs to be done on the fly, as the .aac files expires once the stream is stopped. I'd prefer to be able to continue to use the web server as opposed to LMS , but I can use LMS, if need be. Is there some type of filetype which Squeezebox accepts, which can kick off a script and return an appropriate URL? (Not sure about cross-posting or which generic forum is appropriate).

Any recommendations?

Thanks