[MEncoder-users] MPEG-2: vrc_minrate and vqmin / lmin
Nicolas Hesler
nicolas.hesler at sheridanc.on.ca
Mon May 12 19:06:16 CEST 2008
> See above. Low lmin values only mean higher probability of low
> quantizers. While lmin=0.01 won't produce quantizers lower than 1
> (Because vqmin forbids it. And they'd be useless anyway - dividing by a
> value less than 1 means you make up bigger coefficients than are
> actually there. That'd be plain stupid.), it also modifies probabilities
> for quantizers bigger than 1.
>
>
>
lmin set to 0.01 improved the banding immensely. Adding dc=10 reduced
pulsating (at the keyframe intervals) in some of the blocks in the
banded areas.
I suppose that banding is just part of the game with MPEG-2 encoding?
Thanks for your help!!!!
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