[MPlayer-users] Two-passes encoding - What happens exactly?

[Jan Knutar]

> No, you misunderstand entirely. With -ovc copy you don't reencode at
> all, you just remux the stream that was already there. On the other
> hand, if you ARE encoding, you should always use 2pass mode. With
> just 1 pass, results will be horrible during high-action scenes.

Erm, what about live encoding from tv? You're sort of forced to use the 
now discouraged option vqscale=2 there, unless you have insane amounts 
of CPU power to spare for ffv1, or huge and fast harddrive for the not 
so cpu intensive lossless ones.