[FFmpeg-user] Reversing PAL->NTSC telecining.

[Carl Eugen Hoyos]

Nicholas Robbins <nickrobbins <at> yahoo.com> writes:

> >>  >>  >>  If you recall, something about how mplayer dumps its 
> >>  >>  >>  vobs labels them as ~60fps, when they are really ~30.
> > 
> > I would like to look at this issue (if it is reproducible.
> > (The fps filter should not be necessary.)
> 
> So, do you want the output of perhaps
> 
> mplayer -dvd-device /dev/sr0 dvd://1 -dumpfile out.vob 
> -dumpstream -endpos 2M

Correct.

> >>  a) -vf fps=30000/1001,fieldmatch,decimate=6
> > 
> >>  won't a) leave interlaced frames?
> > 
> > Only for very badly cut material.

> the ffmpeg docs suggest including yadif.

It also suggests that fieldmatch is better than 
pullup but I still haven't seen a sample that 
shows this (it is much slower though).

> fieldmatch=order=tff:combmatch=full,yadif=deint=interlaced,decimate

I think this does not always work correctly so you should 
probably only use it if necessary for your sample.

Carl Eugen