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

Petr Stehlik pstehlik at sophics.cz
Tue Apr 1 08:23:24 UTC 2008

Mårten Bohlin píše v Út 01. 04. 2008 v 09:48 +0200:
> bars. But you can also select to get some overscanning for 4:3 content
> if you want to.

Unfortunately the overscanning gets enabled for 16:9 content as well.
Thus half zoom enabled (that works very well for my 4:3 videos)
overscanned 16:9 videos as well.

> >  I've been running this since last week and it seems to be pretty
> >  solid.  The only remaining issue I might have is that it would be nice
> >  to be able to disable it for DVDs.  We were watching a movie this
> >  weekend, Dan in Real Life I believe, and I think it was a anamorphic
> >  2.35:1 ratio video.  In other words it was widescreen, but still with
> >  a small bit of black bar at the top and bottom of the screen.  This
> >  triggered the auto-fill to kick in.  Easy enough to change with the
> >  OSD menu, so it's only a minor annoyance.  I'm picky about movies and
> >  almost always want those in the original aspect with no "overscan".
> >  In fact this might be what the poster above was talking about so I'm
> >  sorry if I didn't get that :)

> I am interested in what happened in this case, since the auto
> detection should disengage itself if the video is not in 4:3 format.

Unfortunately it did not - that's why I replied to this thread and
suggested the pseudo algorithm that adds the comparison of the aspect

> So which version of the patch are you using?

I use v7.


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