This decoder is based on GPL'd sources obtained from the XMMS release.
The mpg123 decoder, by Michael Hipp <hippm@informatik.uni-tuebingen.de>,
is basically the fastest out there, bar none.  Even the Xing code found in
FreeAmp can't even come close (Xing is about 25% to mpg123's 18% on my
P133 laptop).

I've made extensive modifications to remove all globals from the code,
making it a library.  I have contacted Michael Hipp, and he is open to
merging my changed into the core mpg123 code, since his somewhat aborted
attempt is indeed stalled due to lack of time.  Note that layer3.c and a
few other bits of code are now from mpg123-0.59r, rather than the earlier
release found in XMMS.

Note that in its current state, it's rather incomplete.  I have been
unable to get the whole thing to work with my new getbits code yet, so
it's released in its current reather unworkable state.  It will build, but
it will do nothing useful.
