[Theora-dev] erroneous implementation?

Ivan Popov pin at medic.chalmers.se
Thu Sep 2 11:58:15 PDT 2004

On Thu, Sep 02, 2004 at 08:53:33AM -0400, Timothy B. Terriberry wrote:
> this is probably caused by the fact 
> that the encoder does not apply the loop filter, even though it is 
> inside the prediction loop in the decoder. This is a known bug from the 
> original VP3 implementation.

It is good news that the bug is known, so somebody hopefully knows also
how to fix it? :)

I guess the fix would remarkably improve the quality of fixed bitrate encoding.
It suffers bad artifacts at scenes where it should be superior to variable
rate one - like text and other "almost no changes" situations.


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