[MPlayer-users] Re: best encoder ?

[Michael Niedermayer]

Hi

On Monday 22 July 2002 14:24, Karsten Müller wrote:
[...]
> > But it requires some tuning. Here's what I use for MPEG-2 -> DivX :
> > [Note that I use libvcodec's internal 2-pass mode (vpass=x) instead of
> > the old DivX4-inspired external 2-pass mode (-pass x)]
>
> What's the advantage of the internal pass method ?
it works

>
> [...]
>
> > FILTERS="-vop scale=624:384,crop=654:572:33:2 -sws 9"
>
> Are you cropping *all* of your videos or is this just an example ?
> What is "-sws 9" ? Documentation (html) says valid range is 0 - 2
> and man mencoder tells me valid range is from 0 - 5 ?
see DOCS/tech/swscaler_methods.txt

>
> [...]
>
> > vcodec=mpeg4:vbitrate=$VBITRATE:vhq:vrc_strategy=1:vqmin=2:vlelim=4:vceli
> >m= 7:v4mv:vqcomp=0.7" VIDEO1="$VIDEOCOMMON:vqblur=0.3:vpass=1"
>
> What are these "vrc_strategy,..." values ?
>
> "man mencoder" tells me that these options exist but (for most of them)
> not what effect they have on the output ;) (If I overlooked something,
> please tell me where to search )
RTFS libavcodec/ratecontrol.c ;) no seriously iam rewiting the ratecotrol code 
and this will be implemented differently (more flexible) so its not worth to 
document now

[...]

Michael