theora dev - May 2003 - VP30

Hi,
        Can anyone tell me the significant differences between VP30 and
VP31 (or are you allowed to)? Are there different token and quantizer
tables? Are there algorithmic differences? I have a VP30-encoded file that
plays with the VP3 VfW DLL but not with the open source decoder.

        Thanks...

--
	-Mike Melanson

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ugh.  I can't recall exactly, but I'm pretty sure there were major
changes to the token scheme.  THey're definitely incompatible bitstreams. 
The production decoder had a switch -- I guess we took it out when we went
open-source.  What DLL plays these files?  Can you re-encode them?

 ___  Dan Miller
(++,) Founder, On2 Technologies 
> -----Original Message-----
> From: Mike Melanson [mailto:melanson@pcisys.net]
> Sent: Wednesday, May 07, 2003 9:35 PM
> To: theora-dev@xiph.org
> Subject: [theora-dev] VP30
> 
> 
> Hi,
> 	Can anyone tell me the significant differences between VP30 and
> VP31 (or are you allowed to)? Are there different token and quantizer
> tables? Are there algorithmic differences? I have a 
> VP30-encoded file that
> plays with the VP3 VfW DLL but not with the open source decoder.
> 
> 	Thanks...
> --
> 	-Mike Melanson
> 
> --- >8 ----
> List archives:  http://www.xiph.org/archives/
> Ogg project homepage: http://www.xiph.org/ogg/
> To unsubscribe from this list, send a message to 
> 'theora-dev-request@xiph.org'
> containing only the word 'unsubscribe' in the body.  No 
> subject is needed.
> Unsubscribe messages sent to the list will be ignored/filtered.
> 
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Hey, wow... there's actually activity on this list. Just when I thought the 
theora project lost its voice box, it whimpers... ya, I'm bored. I'm not
an
expert on all these versions of VP3, but wouldn't it make sense not to
change
the bitstream until the next major release? Or is VP31 not a point release 
and I'm just really confused?

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