title: Icecast relay stream can buffer a progressive audio stream
body: <p>After reading the documents of icecast, I have two questions:</p>
  
  <p>1) I'm not sure the icecast server can buffer audio streams, if It does can, How about using relaying?</p>
  
  <p>2) If i have many dynamic relay servers to proxy, How to config the config file? I mean I have to change the config file dynamicly, since i have not sean that icecast supports the regular expression such as /realtime(\d+) to match all the realtime stations.</p>