[foms] Proposal: adaptive streaming using open codecs

[Timothy B. Terriberry]

> sample at the switch point. You can either handle it with cross
> fading, or having a dirty glitch. But users will not like the latter.

As was discussed at FOMS itself, you don't actually need to cross-fade 
(in the sense of buffering extra data---the exact wrong thing to 
do---and having two decoders to decode overlapping sections of the two 
streams). You can smooth over the transition with simple LSP 
extrapolation and blending. Monty believes the result will be less 
noticeable than the fact that your audio stream just dropped in quality.