On Monday 21 November 2005 02:14 pm, Cory Papenfuss wrote:
> > Currently I use the built in stretch mode on my TV to stretch 4:3 to
> > 16:9. It does a nonlinear stretch so the edges of the picture are
> > stretched more than the middle. Windows MCE has this feature too.
> >
> > Before I burn an evening mucking with a working X config, i'd like to
> > know if MythTV do this also, or does it stretch the entire picture
> > evenly?
>
> I think I remember this thread coming up before. I really doubt
> that you will find anything from within the X config that will allow you
> to do that. Modelines are linear. Unless the specific video card driver
> has a special mode for it (non that I'm aware of do), you're screwed.
>
> That should probably be done at the application (i.e. mythtv)
> level. I don't think anyone has done it yet.
>
> -Cory
Why would you want this? Is there a screen shot somewhere showing why
this is useful? I'm just curious...
I'm one of the people who started a thread on this about a year and a half ago.
I have this feature on my Panasonic plasma display and *love* it. Basically, for 4:3 content, the picture is stretched to fill the 16:9 display but the middle 50% or so of the image is not stretched (much). Since many (most) programs have most of the action in the middle 50% of the image, this means that the main part of the image appears largely unadulterated, and yet the full 16:9 panorama effect is produced.
Note that for sports, like hockey and football and especially auto racing, I turn this feature off because those programs often do make use of the entire image.
Now the reason I would like MythTV or Linux/nVidia to support this is that my plasma monitor only supports this special mode in svideo or component inputs. The vga input only supports 16:9 linear stretch. At one time I wanted to use the vga input, and hence my question about whether mythtv or linux might support this.
When this was discussed last year, I think people were generally saying that this would be computationally too expensive to implement in software, and so the matter was dropped. But I still think it is a great feature, and that there would be value in having it somehow. On the other hand, I've since gone with a vga-to-component adapter, so the issue no longer applies in my case. But if I ever buy a new 16:9 display that doesn't support this mode, then I would of course be interested in this again.
Peter
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