[Vorbis-dev] improving vorbis compression with arithmetic coding and by exploiting temporal redundancies

Dimitry Andric dimitry at andric.com
Thu Sep 1 14:06:47 PDT 2005


On 2005-09-01 at 23:07:18 Yann Guidon wrote:

> If it was known in advance, then the efforts were fruitless.
> Implementing arithcodes is an easy and effective method.

However, isn't arithmetic coding encumbered with numerous patents?
This might have been the reason that it was never used in Ogg
Vorbis...

There are probably lots more interesting and useful compression
improvents that could be added, if only they weren't patented by the
large media corporations (e.g. Philips, Thomson, etc.)
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