[MPlayer-users] Reducing FPS?

[Mark Williams (MWP)]

> On Saturday, 19 March 2005 at 17:18, Mark Williams (MWP) wrote:
> > > > On Sun, 20 Mar 2005 00:19:32 +1030
> > > > "Mark Williams (MWP)" <mwp at internode.on.net> wrote:
> > > > 
> > > > >
> > > > >Tried "-fps 50 -ofps 25", didnt help, still get video at 1/2 speed.
> > > > >Any other ideas?
> > > > >
> > > > >Thanks again.
> > > > 
> > > > Hi,
> > > > 
> > > > Can you give the command you're using ?
> > > 
> > > Sure.
> > > 
> > > mencoder -o test.avi -nosound -noskip -fps 50 -ofps 25 -oac copy -ovc \
> > > lavc -lavcopts vodec=mpeg4:trell:v4mv:vhq:vqmin=2:vqmax=20:vmax_b_frames=2:\
> > >  aspect=4/3:vbitrate=1800 -vf crop=704:568,scale=704:396,denoise3d \
> > >  -sws 2 movie.mpg
> > 
> > Ok, looks like the problem had something to do with frameno.avi for audio.
> > 
> > After removing frameno, mencoder is now encoding at the correct rate...
> > but the video is now very jerky.
> >
> > Any ideas?
> 
> Yes, don't do it. Dropping every second frame will make your video jerky,
> no matter what. Apart from that, -nosound breaks a-v sync, remove it, and
> hqdn3d is better than denoise3d.

Ok, if i cant drop every second frame, im back to the original question then...
how do I drop the encoded frame rate from the original 50fps to 25fps?

-nosound is now gone.
I know hqdn3d is better, but its also slower... im already encoding at ~20FPS :(

Thanks.