[MEncoder-users] two pass encoding with pullup

[D Richard Felker III]

On Tue, Apr 05, 2005 at 08:58:31AM +0200, Winterbird wrote:
> D Richard Felker III wrote:
> 
> >On Tue, Apr 05, 2005 at 07:07:34AM +0200, Winterbird wrote:
> >  
> >
> >>the video looks good when I watch it in mplayer, but I'm beginning to
> >>think that pullup doesn't always drop the same frames, and that's why
> >>the video becomes strange... I guess I'll just have to experiment a
> >>little to see if I can get it working with pullup or any other ivtc...
> >>Thanks for the help.
> >>    
> >>
> >
> >Are you following the directions that say you MUST ALWAYS use the
> >softskip filter with pullup for encoding? If you're going to ask
> >questions here you REALLY need to show us the full exact command lines
> >you're using at the very least.
> >
> >Rich
> >  
> >
> yes, sorry, I just wanted to know if it was a common problem... Anyway,
> first pass:
> 
> mencoder -noidx -nosound -noaspect dvd://1 -chapter 16-20 -ovc lavc -vf
> pullup,softskip,phase,hqdn3d=12:0:10,unsharp=c7x7:0.5:l7x7:0.5,crop=704:464:6:8,scale=640:-3
> -ofps 24000/1001 -lavcopts
> qns=3:cmp=2:subcmp=6:preme=2:predia=3:dia=3:last_pred=3:vmax_b_frames=1:mv0:cbp:qprd:trell:preme=2:keyint=300:v4mv:mbd=2:vqscale=2:vpass=1
> -o /dev/null
> 
> second pass:
> 
> mencoder -noidx -nosound -noaspect dvd://1 -chapter 16-20 -ovc lavc -vf
> pullup,softskip,phase,hqdn3d=12:0:10,unsharp=c7x7:0.5:l7x7:0.5,crop=704:464:6:8,scale=640:-3
> -ofps 24000/1001 -lavcopts
> qns=3:cmp=2:subcmp=6:preme=2:predia=3:dia=3:last_pred=3:vmax_b_frames=1:mv0:cbp:qprd:trell:preme=2:keyint=300:v4mv:mbd=2:vbitrate=1145:vpass=2
> -o finished.avi
> 
> the difference is only that I added qns=3 on the second pass, and the
> bitrate (vbitrate=1145 instead of vqscale=2).

Why are you using phase after pullup? This makes no sense
whatsoever...

Rich