[mythtv-users] 1:1 aspect ratio for Internal Player?

Steve Adeff adeffs at gmail.com
Sun Jan 8 21:32:16 UTC 2006


On Sunday 08 January 2006 16:13, Kichigai Mentat wrote:
> On Jan 8, 2006, at 13.39, Steve Adeff wrote:
> > On Sunday 08 January 2006 14:25, Kichigai Mentat wrote:
> >> On Jan 7, 2006, at 23.12, Steve Adeff wrote:
> >>> I've been using the Internal player for playing back xvid's and
> >>> notice that
> >>> the aspect ratio is forced to 16:9 making the image look wrong. Is
> >>> there a
> >>> way to get the Internal player to use 1:1 instead so that it
> >>> displays with
> >>> the proper aspect ratio?
> >>
> >> Don't you mean 4:3, not 1:1? Also, what kind of display are you
> >> using? Is it a widescreen TV, or is it something like a computer
> >> monitor? Also, does the XviD file happen to have an erroneous aspect
> >> ratio coded into it (MPlayer can do those things)? Does this happen
> >> with other files? Does this happen only with XviD encoded files?
> >
> > no, they're 1:1 encoded xvids. I'm playing it back at 1280x720
> > (16:9) for my
> > TV. they playback fine using mplayer on the Myth machine (because
> > it doesn't
> > try to change the aspect ratio) and on XBMC(same reason). There is
> > no aspect
> > ratio coded in to the avi as when I play it back in mplayer the
> > aspect ratio
> > comes up as the w/h=2.35 the proper aspect ratio.
>
> That's wrong. 16/9=1.77777777778, not 2.35.
>
> But, judging from what's been said, It sounds to me like MythTV is
> telling MPlayer to change the pixel aspect ratio from 1:1 (which is
> what you want) to 16:9. I guess you need to go into your video
> playback settings and make sure all pixel aspect ratio options are
> disabled.

I have a bunch of xvids of movies from DVD and other 16:9 sources. all black 
bars have been removed and the files encoded at 1:1 pixel ratio. 

MPlayer, Xine, VLC, XBMC(which uses mplayer) all play the files properly 
because they don't apply an artificial aspect ratio like the Internal player 
is doing. Now, I'm not faulting the internal player for this, for what its 
been designed to do, playback TV recordings, forcing a 4:3 or 16:9 aspect 
ratio more than makes sense. But why not use it for other media sources as 
well. It makes all of MythTV look unified and I rather like the controls it 
gives me.

Anyway, I'm going to assume it can't do 1:1 pixel ratio playback yet and 
continue using XBMC for the time being.

-- 
Steve


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