[MPlayer-users] mencoder and -noaspect

[Jean-Marc Stévenne]

Hi again,

Video encoding was neither working with 2 nor with 3 passes. When using the  
-noaspect option it worked perfectly (in 2 passes, did not had time to test 
with 3 passes).
I suppose that dvd aspect rescalling is not necessary in the case of mencoder 
and that is should always be disable. Am I correct?

How can I know that a film is interlaced? Should I see 50fps in the mplayer 
output?



On Thursday 09 January 2003 16:51, Arpi wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Hi,
>
> search the archives.
> you cannot do 3-pass encoding for interlaced (50 fields per second instead
> of 24/25 frames per sec) media
> you must decode video in the first pass too.
>
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > Hi,
> >
> > Using mencoder 0.90pre8, 0.90pre10 or 0.90rc1 I ran in a strange problem
> > when trying to mencode the 7 Year in Tibet DVD zone 2. I use 3 phases
> > encoding. The sound was correctly encoded but during the process for
> > every frame I had a Skip frame!!!
> > warning.
> >
> > On phase 2 (and 3), the Skip frame!!! warnings were of course there again
> > but this time it affected the resulting video. It looked like one line
> > out of two were encoded, also the first frame "ghost" seems to remain
> > forever in the following frames.
> >
> > I eventually found a workaround: use -noaspect.
> > I noticed that the number of frames processed correspond to 50fps instead
> > of 25 fps (I hope this might give you a clue of the cause), but the
> > result was very good this time.
> >
> > Question: is there any reason not to use -noaspect when mencoding a dvd?
> >
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > RTFM!!!  http://www.MPlayerHQ.hu/DOCS
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> > http://mplayerhq.hu/mailman/listinfo/mplayer-users
>
> A'rpi / Astral & ESP-team