[MPlayer-users] mencoder, file sizes

[Felix Buenemann]

On Monday, 12. November 2001 09:03, you wrote:
> >>  It seems there is some corelation between source quality and
> >> compression - when source is very good I get big gains on filesize, when
> >> it's ok there is no noticable gain, and when source movie quality is
> >> poor, then divx4 gets bigger.
> >
> > yes, the cleaner the input video the better it can be compressed,
> > compression artefacts in input video are unhealthy to encoders.
>
> Right, I experience this right now, while tinkering with my TV-card. Since
> Old-fashioned TV uses interlacing, faster moving objects or panning causes
> the picture to look like a comb.
>
> This compresses so bad, even a 2000kbps stream (divx4,384x288) looks
> really really ugly, whereas the same sequence from a clean source (ie no
> interlace combs) contains _no_ noticable artifacts when encoded at 900kbps
> (divx4,384x288).

Alex is currently working on tv support in mplayer, once this is done I'm 
sure it's possible to also use filters in postproc/ for processing it which 
would be very helpfull for encoding and display as we could use Michaels 
great deinterlacing filters stored there.

-- 
Best Regards,
	Atmos
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