[mythtv-users] improve upscaling quality?

Mark Buechler mark.buechler at gmail.com
Wed Apr 22 15:34:59 UTC 2009


Hi

On Wed, Apr 22, 2009 at 4:54 AM, Ma Begaj <derliebegott at gmail.com> wrote:

> 2009/4/11 Glenn Sommer <glemsom at gmail.com>:
> > Hi
> >
> > Personally I see the vdpau patches working WONDERS when using => 720p !
> >
> > But for SD content over DVB-C, my crappy DVB-C receiver I got from my
> > provider gives a lot better picture/motion quality. (It can upscale to
> > 1080i).
> > Though, when comparing HD channels I see very little difference...
> > MythTV with VDPAU does quite a good job here!
> >
> > So, guess the solution is to get ALL channels to do HD :P hehe
> >
> >
> > 2009/4/11 Jean-Yves Avenard <jyavenard at gmail.com>:
> >> Hi
> >>
> >> 2009/4/11 Gordon McLellan <gordonthree at gmail.com>:
> >>> I've tried using the custom resolution feature under myth, but it is
> >>> unable to change resolutions, it tries, because the TV shuts down for
> >>> a few seconds and then comes back on, but it alway comes back on at
> >>> 1920x1080 at 60hz.
> >>
> >> I found that by default, you can't get any other refresh rate with
> >> nvidia cards but 60Hz , unless you disable the GPU scaling in
> >> nvidia-settings.
> >>
> >> It is surprising that you don't get good result with VDPAU, I found
> >> their deinterlacer / upscaling really good. Almost as good as my Sony
> >> TV
>
> Not other ideas on this subject? There are probably many of us with
> the same problem.
> My receiver also upscales SD great comparing to mythtv.
>

Maybe someone will enable ffmpeg's software scaling in MythTV someday.

- Mark.
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