[mythtv] Ticket #4872: Detect if video is letterboxed and switch to corect fill mode
mabo at mochc.net
Tue Apr 1 07:48:37 UTC 2008
On Mon, Mar 31, 2008 at 3:49 PM, Willy Boyd <willyboyd at gmail.com> wrote:
> On Sun, Mar 30, 2008 at 3:07 AM, Petr Stehlik <pstehlik at sophics.cz> wrote:
> > Mårten Bohlin píše v St 26. 03. 2008 v 10:21 +0100:
> > > Since this patch seems to work very well. So I have uploaded a "final"
> > > version to the ticket now. This version is the same as version 6 but
> > > all debug code has been removed.
> > >
> > > Does anybody has any suggestion of any other issue that I could have a
> > > look at now?
> > For me, the "default zoom: half" does not work as expected because it is
> > zooming even contents that would fit perfectly on screen without any
> > black bars - i.e. 16:9 movie on 16:9 screen is zoomed as well. The
> > default zoom should IMHO zoom to half (if enabled) only if the movie is
> > 4:3 and screen is 16:9 (not sure about 16:9 movie on 4:3 screen).
> > Petr
> I thought that "half" only specified how much to zoom? Even if the
> video is 4:3, it may be displaying a 16:9 movie or show with the black
> bars encoded into the stream. Zooming in on this is what this feature
Yes it it makes a half or a full zoom depending on the size of the
bars. But you can also select to get some overscanning for 4:3 content
if you want to.
> 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.
So which version of the patch are you using?
And do you still have the DVD so you could run with it with the verbose flag?
mythfrontend -v playback
You only have to watch the movie until you can see the error. And then
send the output to me.
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