Shrinks library size. From the release notes:
Nathan Froyd at Mozilla noticed something odd in the libvorbis
sourcebase. Codebook 'length lists' only use integers in the range
of 0 to 32. Well, worse than integers, actually, longs. And the
lengthlists are big; the static data comprises the bulk of
libvorbisenc.
In the earliest days of Vorbis development 15 years ago, codebooks
were constructed differently and the lengthlists were quite small.
Longs still weren't necessary, but the wasted space was
negligible. When the coding strategy shifted and these lists
became much larger, no one caught the wasted space. The vast
majority of optimization was always for speed, not space. The only
concentrated effort in trimming Vorbis library size down over the
past decade had been in the decoder.
But now browsers need to ship encoders, and size matters. Add that
to 64 bit taking over (and doubling the wasted space in the
lengthlists), someone finally noticed the oversight.
That's a long way of saying [1]"Xiph.Org is pleased to announce
the release of libvorbis 1.3.4..."
No functional changes, but the encoder lib is now a shade over 25%
the size it was in the 1.3.3 release.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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