[XviD-devel] the difference between xvid1.01's fdct and the origin fdct in standard

[Edouard Gomez]

Selon ºÎÏÈÉú <light_purple at 163.com>:
> I found that the result of optimized fdct algorithm is  different to the
> origin fdct algorithm. Does xvid adopt a  modified fdct algorithm ?

Yes the optmized versions of the fDCT are different from the C version.

The only requirement is that all iDCT implementations do match, fDCT
isn't that critical as the differences are reinjected in the coding
loop.

--
Edouard Gomez