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

[Colin Mckellar]

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.
>
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