Re: [MEncoder-users] Encodes for slow laptop

Em Seg, 2008-06-09 às 02:13 -0500, R.L. Horn escreveu:
> On Sun, 8 Jun 2008, RC wrote:
>
> > On Sun, 8 Jun 2008 20:05:33 -0500 (CDT)
> > "R.L. Horn" <lists@eastcheap.org> wrote:
> >
> >> Sticking to (at least) mod8 (mod16 with H.264) is a good idea
> >
> > This is bad advice. With just about every codec since the '80s, you
> > waste a serious amount of bits if you don't use mod 16 dimentions, (and
> > mod32 with interlaced video).
>
> Hence the qualifier, "at least."
>
> Some popular (and sometimes mandated) frame dimensions just aren't
> divisible by 16 (perhaps most notably, 1080/16 = 67.5). Many more aren't
> divisible by 32 though, happily, both 480 and 576 are.
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I never watched a 1080 video, but I read somewhere that 1080 video are
1088 pixels high with the last 8 cropped.

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