[mythtv-users] What do I have to do to get HD working?

Steven Adeff adeffs.mythtv at gmail.com
Sun Apr 16 01:29:43 UTC 2006


On 4/15/06, Ivan Kowalenko <ivan.kowalenko at gmail.com> wrote:
> On Apr 15, 2006, at 12.18, Steven Adeff wrote:
> > On 4/15/06, Ivan Kowalenko <ivan.kowalenko at gmail.com> wrote:
> >> On Apr 15, 2006, at 01.52, Steven Adeff wrote:
> >>> On 4/15/06, Marco Nelissen <marcone at xs4all.nl> wrote:
> >>>>>>> Whoever said that a P4 3.2 is fast enough for HD doesn't know
> >>>>>>> what
> >>>>>>> they are talking about.  Get an AMD dual core.  I have a 3800
> >>>>>>> and it
> >>>>>>> works well (It replaced a Prescott 3.2 that I used before after
> >>>>>>> making
> >>>>>>> the same mistake that you just made).
> >>>>>>
> >>>>>> Processor-envy aside, a dual-core 3800+ is overkill. I'm using an
> >>>>>> Athlon64 3200+, and it is sufficient for HD, even without XvMC.
> >>>>>
> >>>>> It is only sufficient if you reduce the quality of playback.  A
> >>>>> 3200+
> >>>>> will not be able to deinterlace to 60fps.  This may not be
> >>>>> important
> >>>>> to everyone, but it is quite noticeable on sports, Letterman, etc.
> >>>>
> >>>> I suppose if your TV only supports progressive, you might need a
> >>>> beefier
> >>>> CPU. I just play my recordings in their native formats, since
> >>>> the TV
> >>>> supports both interlaced and progressive input signals.
> >>>
> >>> I don't understand that commend about a 3200+ not being able to
> >>> deinterlace 60fps. I had Myth converting 1080i to 720p output before
> >>> the new nvidia driver was released and never had a problem.
> >>
> >> I think we're talking about going from 1080i to 1080p (though this
> >> hasn't been explicitly stated, as far as I'm aware) in real-time.
> >> Probably would help, though, if we knew for sure.
> >
> > I've got a 3200+ and use BOB with 1080i and still only hit 90%
> > occasionaly.  The downside is the CPU needed to record from 3 DVB
> > cards can make it choppy, just means I need to build a dedicated
> > masterbackend, but I can definitely go from 1080i to 1080p with a
> > 3200+.
>
> I'm not disputing this. Actually, I can't. No HDTV experience (No
> HDTV owned). I'm just clarifying the point made above where Steven
> Adeff says he can go from 1080i to 720p without problems. I'm just
> pointing out that we're not talking about 1080i->720p, but 1080i-
>  >1080p. At least, I think that's what we're trying to do.

I am indeed talking about 1080i with bob, creating a psuedo 1080p
video stream, how your video card decides to output it to your tv is
irrelevant.

--
Steve


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