[mythtv-users] Pixelation Issues

D daspiras at gmail.com
Tue Mar 6 04:06:47 UTC 2007


On 3/5/07, Brian Wood <beww at beww.org> wrote:
>
> On Mar 5, 2007, at 7:52 PM, D wrote:
>
> > I only have a sd tube tv - it should be 4:3.  My first thought was an
> > overscan issue. but the mythtv gui fills the screen except for a wee
> > bit at the top and the bottom that I need to tweak the overscan for.
> > Recording at 4:3 on the other hand, places black bars on the left and
> > right side of the video when playing back (unless I zoom or fill).
> > Square on the other hand works and looks fine, filling the same
> > screensize as mythgui,  but it seems like the wrong thing to be doing.
> >    Maybe I should try recording at 4:3 and playing it on my desktop to
> > see if the black bars are indeed encoded in the video as I think they
> > are.
> >
> > I mean, technically it looks as good as the regular live straight
> > cable to tv for everything except sporting events, but it doesn't seem
> > to be the right thing to be doing.
>
>
> I don't have a CRT handy to check but I seem to recall that square
> pixels is the correct setting, but perhaps somebody driving a CRT
> would know better.
>
>
> By "Sporting Events" do you mean you are seeing artifacts in fast and/
> or unpredictable motion? That's pretty much the nature of the beast
> with an encoder in the consumer price range, and a lot of sporting
> events are being transported as mpeg streams, even if they are
> eventually transmitted as analog by a station or cable system. I see
> all sorts of artifacts in live sports, even the SuperBowl looked
> terrible to me because of them, and this was confirmed by a few other
> folks at the other end of the country seeing the exact same thing.
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Yeah, thats what I meant, thats why I said it looks good, except for
that.  I just switch to the direct input on the tv when watching games
since I recognize the limitations of the system.

Like I said, it looks fine set to square so I guess its working, its
just I thought normal tv was 4:3.


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