[MEncoder-users] i-frames only ... two pass?

[Reimar Döffinger]

On Fri, Feb 22, 2008 at 11:45:05AM -0500, Andy Civil wrote:
> mpeg2video question:
> 
> If I intend to only use iframes, (-lavcopts keyint=1) then is a two-pass run a 
> complete waste of time?

No, two pass is for determining quantization factors, only setting
vqscale makes that pointless, keyframes have nothing to do with it
(though the question is if the default bit allocation strategy works
well for this, you might have to tune it).