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

Steve Adeff adeffs at gmail.com
Sun Jan 8 21:58:32 UTC 2006


On Sunday 08 January 2006 16:46, Kichigai Mentat wrote:
> On Jan 8, 2006, at 15.32, Steve Adeff wrote:
> > 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
>
> MPlayer IS the internal player, isn't it? I have to say, though,
> judging by what you said about the aspect ratio being set to 2.35 on
> that file, the aspect ratio is set in the file, and is wrong. Your
> aspect ratio should read 1.78 if it is true 16:9.
>
> > 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.
>
> Are you using the "playback recordings" option, or are you using
> another option? Because doesn't Myth have a special option for
> playing back video files from sources other than internally created
> videos? I'm pretty sure that if you were using that option, Myth
> wouldn't enforce the aspect ratio settings like that.
>
> However, I think I see the problem. This came up with before on the
> MPlayer mailing list. Try to find your media playback options. Look
> for any 16:9 options for the aspect ratio, and change it to -
> monitoraspect instead, that might fix the problem.
>
> > 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

nevermind, problem solved, Off and Fill are not options for Change Aspect 
Ratio in the menu, and since I never bothered learning a specific button for 
them to my remote had no ability to switch to them.

-- 
Steve


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