[mythtv] Ticket #4872: Detect if video is letterboxed and switch to corect fill mode

Petr Stehlik pstehlik at sophics.cz
Mon Mar 31 18:39:37 UTC 2008


Robin Neatherway píše v Po 31. 03. 2008 v 16:00 +0100:
> >  Well, I meant it differently - normally the "remove black bars" function
> >  never "overscans" but with 4:3 movie on 16:9 screen there is a lot of
> >  wasted screen space due to the black bars so I thought it would be cool
> >  to automatically zoom in to 14:9 (called also half zoom) to partially
> >  overscan and partially remove the black bars.
> >
> >  I realize it has not much common with the autodetect function but it
> >  fits under the feature "remove black bars" :-)
> >
> >  So it would work as follows:
> >
> >  if (black bars in stream detected)
> >      zoom as much as possible to remove the black bars;
> >  else
> >      if (video aspect ratio != screen aspect ratio)
> >          if (half zoom allowed)
> >              set half zoom to remove at least part of the black bars;
> >
> >
> >  Currently it seems to miss the aspect ratio compare condition.
> 
> I would prefer it not do this. I feel that once the screen is filled
> in either direction, you are seeing the programme as intended.

Correct.

> Beyond that, tweaking should be manual, or at least not tied up with the
> "black bars in stream" detection.

It's not tied up with that, it's an optional and configurable add-on to
that (and is disabled by default :-)

Petr




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