[ANN] "Pure" Ogg-Vorbis decoder

Dan Ingalls Dan at SqueakLand.org
Fri Jun 11 16:41:53 UTC 2004

>I have just released onto SqueakMap a "pure" Smalltalk port of the 
>Ogg-Vorbis decoder from Xiph.
>It is VERY slow, very buggy and the code is so ugly that it would 
>definitely win the "Ugliest Code Competition".
>I have had a compulsion to write an Ogg decoder and so I took the 
>hardest, slowest way I possibly could because I am lazy (confused? 
>Me too).
>I could have linked the libraries via a plugin and saved myself a 
>huge amount of work, but I convinced myself that a "pure" codec 
>would be so cool.


Russell -

I'm really glad to hear this.  Ogg Vorbis is definitely a quality 
approach and (unlike much media work) shares our commitment to open 

Good for you to have kept it pure.  A while ago we had a sort of 
competition to see how much could be squeezed out of a naive 
implementation of Tetris.  As I recall it was a factor of two in 
space and considerably more in speed.  I haven't looked at your code 
yet, but maybe this would make another good exercise for the 
over-brained and under-employed denizens of this list.

And yes; once it has been cleaned up and tested, plugins will do 
wonders for the speed, though my enthusiasm lies more with JITs right 
now (actually since the beginning * ;-).

Thanks for the hard work and the implicit challenge!

	- D

(*) if it's written for slang, even a modest JIT ought to do well 
with it, right?

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