[theora-codecs] theora ultra low bitrate support (vp3 style)

[dan miller]

if the old codec has the "QT6" bug, does that mean you're running it under QT5?  Quicktime 6
definitely has performance issues itself.

--- Colin Mckellar <c.mckellar at student.murdoch.edu.au> wrote:
> Its is a G4/350 AGP.
> 
> I wouldn't note it, except I can play a few movies smoothly I have with 
> this old codec, which I can't with the new one.
> 
> Colin.
> 
> On Sunday, June 15, 2003, at 01:25  AM, Mauricio Piacentini wrote:
> 
> > This was reported by Colin before, but to be honest I could not 
> > reproduce
> > his results. It looks like it could be a preprocessing threshold issue 
> > (he
> > mentioned it was happening on a Beige G3 I believe), but in my test 
> > machines
> > I get the same decoding performance.
> >
> > Regards,
> > Mauricio
> >
> >
> >> The "fast" vp3 codec I have is one I got when I purchased the OSX
> >> quicktime version (before it was open sourced.) Unfortunately, it is
> >> affected by the QT6 bug. Released versions since it was open sourced
> >> have been much slower at decoding. The latest version doesn't seem to
> >> have a QT6 problem, but it decodes generally much slower than the 
> >> older
> >> one that I have (when decoding without scaling.)
> >>
> >> The url for a sit file of the older codec can be found:
> >> <http://mornmist.2y.net/~blibbler/On2_VP3OSX.sit>
> >>
> >> The newer codecs seem to encode faster than this one, and there are
> >> slightly different results with decoding psnr numbers, but nothing 
> >> that
> >> should justify the difference in decoding speed.
> >
> > --- >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-codecs-request at xiph.org'
> > containing only the word 'unsubscribe' in the body.  No subject is 
> > needed.
> > Unsubscribe messages sent to the list will be ignored/filtered.
> >
> 
> --- >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-codecs-request at xiph.org'
> containing only the word 'unsubscribe' in the body.  No subject is needed.
> Unsubscribe messages sent to the list will be ignored/filtered.

<p>__________________________________
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
http://sbc.yahoo.com
--- >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-codecs-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.