[MEncoder-users] Framerate keeps switching

[Andrew Berg]

James Hastings-Trew wrote:
> Andrew Berg wrote:
> > I have a few DVDs of films, and MPlayer keeps switching between
> > 24000/1001 fps and 30000/1001 fps. I have two questions:
> >
> > Why does it keep switching?
> >   
> Filmed on film, edited on video equipment. You'll see this a lot on 
> Japanese titles and director's cuts. Disney titles can also switch back 
> and forth at the beginning with video-rate logos and whatnot tacked onto 
> the start of an otherwise film-rate feature.
>   
That makes sense. It was switching very frequently during the opening
"Paramount" sequence, so I thought it would do that throughout (it is a
pretty fluid sequence), but during the actual film, it was only at
certain points which were likely edits.
> > Will MEncoder convert it properly (with -fps 30000/1001 -ofps 24000/1001
> > ... -vf pullup,softskip... )?
> >   
> Yes, if the great majority of it is at film rate. You might have to 
> include some kind of de-interlacer in as well if the 30 fps stuff is 
> more than edit points and a few frames here and there.
I thought so, but I wanted to make sure before I started. I didn't want
to have a few sample cuts turn out fine, and then spend all that time to
encode the whole thing only to have the final video be a disaster.