[MPlayer-users] cropdetect doubt

pablo.morales at abitab.com.uy pablo.morales at abitab.com.uy
Sun Jan 18 19:08:21 CET 2004


I'm also using preset=standard for the lame encoder

Mensaje citado por: pablo.morales at abitab.com.uy:

> Great, now, which values should I pass to the crop parameter, the ones
> that are 
> constant to the rest of the movie?
> 
> I'm using -scale 640:480, for a movie of an 1 hour an half and a bitrate
> of 
> 1900, and the vcodec:mpg4 vhq vqlim, vlelim, dark_mask and lumi_mask
> parameters 
> that appear in the encoding-tips.txt that comes with the documentation.
> 
> Thanx for your time.
> 
> 
> Mensaje citado por: D Richard Felker III <dalias at aerifal.cx>:
> 
> > On Sun, Jan 18, 2004 at 08:02:27AM -0300, Pablo Morales wrote:
> > > Hi there guy.
> > > 
> > > I was reading in the documentation that it's reads thats it's  a
> must
> > to
> > > crop the black  stripes from the movie to rip in order to have a
> > better
> > > quality,  I fire the mplayer with -vf cropdetect, it starts
> playing,
> > but I
> > > get differents values. For a couple o seconds I've got  some
> values,
> > then
> > > almost after 10 seconds another values, then it stabilizes and I've
> > got a
> > > constant value for the rest of the movie, I want to know which of
> the
> > values
> > > I have to pass to the crop= parameter, and if it really improves
> the
> > movie
> > > quality..
> > 
> > Yes, it is an absolute necessity unless you're just going to encode
> at
> > insanely high bitrate or constant-quantizer.
> > 
> > Rich
> > 
> 




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