Re: [dvd::rip] zoom ratio not respected ?

vincent wrote:

> Can you explain me why the ratio is not rspected ?
> 
> after the first zoom (Autoadjust) the original size is 720x576 (1,25),
> after zoom 640x360 (16:9)
> 
> so the images is more haight that width ...

Sorry, I don't understand the problem (resp. don't understand the 
question ;) There is no "first zoom" - transcode knows only one zoom 
stage. Probably you mean "first clip". The zoom stage is used to get a 
pixel ratio of 1:1 resp. an ratio width/height of 16:9 (of course if you
have a 16:9 movie), so the player need not to apply any ratio resizing.

Also for a resolution of 640x360 indeed the height (360) is not bigger 
than the width (640) - can't see any problem here.

> Why not clipping in first to remove the black bars ?

Because resizing works better for values divisible by 8, 16 or 32. If 
you clip first you most probably get odd values - that's why it's better
to clip after resizing (discussed in documentation paragraph 2.6.1.4).

I suggest reading the chapter "Clip & Zoom" and for all the gory details
"Zoom calculator" if you want to learn how dvd::rip handles resizing and
aspect ratio stuff.

  http://www.exit1.org/dvdrip/doc/gui-gui_clip_zoom.cipp
  http://www.exit1.org/dvdrip/doc/gui-gui_zoom_calc.cipp

(in general it's a good idea to read documentation before asking 
questions ;)

Regards,

Joern

-- 
Joern Reder
supporting:   http://www.zyn.de/
unbelievable: http://www.exit1.org/
CPAN:         http://www.perl.com/CPAN/modules/by-authors/id/J/JR/JRED
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