[MPlayer-users] lavc vs. xvid (and improving lavc quality)

Matthias Wieser matthias-wieser at t-online.de
Sun Jun 6 13:33:10 CEST 2004


rcooley wrote:
> On Sat, 5 Jun 2004 23:20:15 +0200
>
> matthias-wieser at t-online.de (Matthias Wieser) wrote:
> > No, I'm not (stupidly) using vqscale=. I'm using vbitrate=...
> > I'm mostly real-time encoding from cable TV with
>
> Single-pass encoding doesn't really count.

??? It doesn't matter if you use 1 or 2-pass encoding if the problem lies 
at the strategy how mencoder distributes the availabele bits within one 
frame.

> You need to do 2-pass 
> encoding to get really good results at non-astronomical bitrates.

You may try to explain how to do 2-pass encoding with TV-sources.

> However, it's most likely that the cause of the blocks is actually
> hqdn3d... I wouldn't recomend it at all unless you've got really noisy
> video, as it does lower quality significantly,

denoise3d doesn't lower quality of tv broadcasts significantly. It 
improves compressibility.

> > but reserve slightly more bits for seemingly
> > simple flat areas like sky, streets, walls and so on. (Xvid mode ?)
>
> There are hundreds of lavc options.

No.

> I'm sure there are more than one 
> that would improve video for you.

Yes of course (if you donate a new CPU).

        Matthias




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