[MEncoder-users] lavc option nr

[Jan Paul Schmidt]

Am 21.06.2005 um 07:24 schrieb Rich Felker:

> (S)VCD sucks bad and requires very constricted bitrates. Thus
> constant-qp is not an option, and 2pass is very wasteful.

What do you mean by wasteful? I do get better results on a SVCD with 
two passes, which did not suprise me up till now, because it uses MPEG2 
VBR.

Maybe you just mean SVCD is a waste of time anyway ;o)

> For what it's worth, I always had this "pump effect" problem even
> without nr. My solution was:
>
> -lavcopts vi_qfactor=0.1:vi_qoffset=1.5
>
> Basically this just forces all I frames to have qp around 2-4. :)

That sounds nice :o) Thanks, this is something I was looking for.

jps