[ivtv-users] NTSC centering, "itchy" top line

[scram69]

On Wed, Nov 25, 2009 at 9:59 AM, Dale Pontius <DEPontius at edgehp.net> wrote:
> Using hvr-1600 capture cards on the NTSC side.  All works well, but when
>  playing back, or especially on live TV (In MythTV) the image centering
> is a bit off - down and to the right.  In addition, the top line of the
> image is "itchy", flickering and so forth.
>
> Are there knobs somewhere to recenter the image?
>
> I presume the itchy top line has something to do with interlacing...
> It is present in MythTV, but disappears after transcoding.  Is this
> something the right de-interlacer would fix?  What should the
> de-interlacing situation be when I'm using NTSC TV-Out on the video card?
>
> Should this question really be asked on the MythTV list, also?  I know
> the re-centering question is probably more appropriate here, and moving
> the image up might hide that top line, but perhaps the interlacing
> issues are better asked there.
>
> Thanks,
> Dale Pontius
>
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Used to be, you could adjust the overscan of Myth playback in the
playback settings using horizontal and vertical scaling - adjusting to
+1% used to fix it for me.

Unfortunately, these were rendered ineffective in 0.22.  But if you
are running 0.21, they should still work.