[MEncoder-users] Convert 23.976 FPS NTSC to 25 FPS PAL

[Grozdan Nikolov]

On Saturday 28 July 2007 19:36, RC wrote:
> On Sat, 28 Jul 2007 13:38:14 +0200
>
> Grozdan Nikolov <microchip at chello.be> wrote:
> > I'm having a bit of trouble understanding how to convert a Progressive
> > NTSC  file which runs at 23.976 FPS into a 25 FPS PAL one without
> > loosing A/V sync.
>
>  -speed 25025/24000

Sorry, that's not what I need and the NTSC frame rate I provided was wrong, it 
should be 29.970 FPS... with -speed I can hear the changed pitch in the sound

Basically, I want to re-encode this 29.97 FPS file and output it to 25 FPS.
I used the following options

mencoder input.avi -vf filmdint=io=30:25/fast=0 -fps 30000/1001 -ofps 
26000/1001 -ovc xvid -xvidencopts bitrate=1250 -oac mp3lame -lameopts 
cbr:br=112 -o output.avi

However, every now and then I see the video stutter for a second. A/V sync is 
OK, but it's this stuttering I can't get rid off. It can be very annoying in 
low-motion scenes (high-motion ones are OK). So, my question is if the 
filmdint filter is the right one for converting 29.97 -> 25 FPS and do I have 
to use the softskip filter with it? 

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