[theora-dev] Simple player and encoder binaries for Windows
dan at on2.com
Tue Oct 29 09:59:07 PST 2002
note that there may be some changes to the Theora algorithm, ie it is a new release, that's why it's not called VP3.
The plan was to get the bitstream down, then start on optimization. I'm sure the original VP3 asm libs will be of great value but they will probably not work as-is. Until optimization time, please do not assume anything about performance.
From: Mauricio Piacentini [mailto:mauricio at tabuleiro.com]
Sent: Tue 10/29/2002 12:10 PM
To: theora-dev at xiph.org
Subject: Re: [theora-dev] Simple player and encoder binaries for Windows
Just fyi there are already assembly versions of the critical functions
available in the vp3 codec tree, for Windows and Macintosh. The current
theora code however uses the slower C functions, for portability. I believe
in the future (after 1.0 or very close to it) it may be possible to add
these assembler files back to the tree at least for platform-specific
builds, but this is the kind of work that really belongs to the end of the
I don't think VP3 is a slow codec. It is too early in the theora cycle to
tell what the real performance will be, and where to optimize. If the VP3
code base is any indication it can perform very fast even on relatively low
end systems (PII 300 or so.)
> It could be recoded in assembler, but I hate to
> do that if there are major changes to be made...
--- >8 ----
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