[vorbis] Bzip2 & Ogg Vorbis

Segher Boessenkool segher at koffie.nl
Thu Dec 26 19:24:51 PST 2002



John Morton wrote:

> I gather that the story is that the library uses good approximations to the
> optimal Huffman codes for that phase of compression, so that it can do
> everything in one pass - obviously a desirable thing for streaming. Someone
> wrote a rough, hackerware tool to recalculate the optimal codes on an
> existing file, and I think they got results similar to yours (though maybe
> bzip2 does a bit better).

It's not rough nor hackerware, thank you so very much.  It doesn't have a
flashy GUI interface, though, and I want to add more stuff to it before I'll
release it to the general public.

FWIW, normal numbers are 0-5% gain, mostly about 1-2%.

<p>Segher

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