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

Steven Adeff adeffs.mythtv at gmail.com
Sat Apr 15 17:18:58 UTC 2006


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+.

--
Steve


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