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OT: hardware decoding of HD content

 

 

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mnealbarrett at cox

Dec 15, 2007, 10:53 AM

Post #1 of 3 (3971 views)
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OT: hardware decoding of HD content

I just got a widescreen monitor from the wife for Christmas, and
am slowly making the transition to HD content. My system is
still almost entirely SD, though, based on two Hauppauge cards
(350 and 150) and an nvidia geforce fx 5200. But the monitor
can almost do full 1080p (1680x1050). I am already planning
to get an hdhomerun, probably in a few months, but it would
be silly to get that and discover that my system can't play HD
movies without chopping and stuttering.

My system uses a P4 2.6Ghz CPU, so I am thinking of some
kind of hardware aid to help it decode h.264, AVC, or
whatever HD movies. Obviously my 5200 isn't enough, so I am
thinking of upgrading the graphics card first. I don't know what
card to get, though. I don't want to spend too much on a card
with all kinds of 3-D graphics stuff that I won't use much (I
only play games very, very occasionally).

The following link is very helpful:

http://www.nvidia.com/docs/CP/11036/PureVideo_Product_Comparison.pdf

My system uses AGP, so I can't use any of those expensive PCI-e
cards, anyway. According to the chart, my best bet is a GeForce
6200, since some of the the 'better' cards appear to actually be worse
for HD support.

However, this chart all about nvidia's "purevideo" support for Windows.
I don't know how exactly this applies to linux, XVMC, and such. Also,
I really don't know anything at all about ATI. Maybe there is a cheap
ATI card available, similar in price to the 6200, that might be better
for HD decoding on linux. I really don't know. Any tips would be really
appreciated.


mythtv at guiplot

Dec 18, 2007, 9:31 PM

Post #2 of 3 (3407 views)
Permalink
Re: OT: hardware decoding of HD content [In reply to]

My 5200 plays 1080i/720p just fine on my 37" 1080p monitor. You'll find
it offloads MUCH of the CPU work for decoding high def content due to
its video overlay. You'll need the Nvidia legacy drivers. I upgraded
my MB and really miss my AGP 5200. My 7600 looks like crap and uses 50%
of my dual core system (100% of one core!) while the 5200 (now in my
wife's computer as a remote frontend) only uses 48% of a single core and
looks great! I hope either Nvidia wises up soon or the Myth developers
get the Nvidia 3D rendering working. Hold on to that 5200 as long as
you can!

DaveD

Marc Barrett wrote:
> I just got a widescreen monitor from the wife for Christmas, and
> am slowly making the transition to HD content. My system is
> still almost entirely SD, though, based on two Hauppauge cards
> (350 and 150) and an nvidia geforce fx 5200. But the monitor
> can almost do full 1080p (1680x1050). I am already planning
> to get an hdhomerun, probably in a few months, but it would
> be silly to get that and discover that my system can't play HD
> movies without chopping and stuttering.
>
> My system uses a P4 2.6Ghz CPU, so I am thinking of some
> kind of hardware aid to help it decode h.264, AVC, or
> whatever HD movies. Obviously my 5200 isn't enough, so I am
> thinking of upgrading the graphics card first. I don't know what
> card to get, though. I don't want to spend too much on a card
> with all kinds of 3-D graphics stuff that I won't use much (I
> only play games very, very occasionally).
>
> The following link is very helpful:
>
> http://www.nvidia.com/docs/CP/11036/PureVideo_Product_Comparison.pdf
>
> My system uses AGP, so I can't use any of those expensive PCI-e
> cards, anyway. According to the chart, my best bet is a GeForce
> 6200, since some of the the 'better' cards appear to actually be worse
> for HD support.
>
> However, this chart all about nvidia's "purevideo" support for Windows.
> I don't know how exactly this applies to linux, XVMC, and such. Also,
> I really don't know anything at all about ATI. Maybe there is a cheap
> ATI card available, similar in price to the 6200, that might be better
> for HD decoding on linux. I really don't know. Any tips would be really
> appreciated.
>
>
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
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brions at usalug

Dec 19, 2007, 3:12 AM

Post #3 of 3 (3397 views)
Permalink
Re: OT: hardware decoding of HD content [In reply to]

On Tue, 2007-12-18 at 21:31 -0800, DaveD wrote:
> My 5200 plays 1080i/720p just fine on my 37" 1080p monitor. You'll find
> it offloads MUCH of the CPU work for decoding high def content due to
> its video overlay. You'll need the Nvidia legacy drivers. I upgraded
> my MB and really miss my AGP 5200. My 7600 looks like crap and uses 50%
> of my dual core system (100% of one core!) while the 5200 (now in my
> wife's computer as a remote frontend) only uses 48% of a single core and
> looks great! I hope either Nvidia wises up soon or the Myth developers
> get the Nvidia 3D rendering working. Hold on to that 5200 as long as
> you can!
>
> DaveD
>
> Marc Barrett wrote:
> > I just got a widescreen monitor from the wife for Christmas, and
> > am slowly making the transition to HD content. My system is
> > still almost entirely SD, though, based on two Hauppauge cards
> > (350 and 150) and an nvidia geforce fx 5200. But the monitor
> > can almost do full 1080p (1680x1050). I am already planning
> > to get an hdhomerun, probably in a few months, but it would
> > be silly to get that and discover that my system can't play HD
> > movies without chopping and stuttering.
> >
> > My system uses a P4 2.6Ghz CPU, so I am thinking of some
> > kind of hardware aid to help it decode h.264, AVC, or
> > whatever HD movies. Obviously my 5200 isn't enough, so I am
> > thinking of upgrading the graphics card first. I don't know what
> > card to get, though. I don't want to spend too much on a card
> > with all kinds of 3-D graphics stuff that I won't use much (I
> > only play games very, very occasionally).
> >
> > The following link is very helpful:
> >
> > http://www.nvidia.com/docs/CP/11036/PureVideo_Product_Comparison.pdf
> >
> > My system uses AGP, so I can't use any of those expensive PCI-e
> > cards, anyway. According to the chart, my best bet is a GeForce
> > 6200, since some of the the 'better' cards appear to actually be worse
> > for HD support.
> >
> > However, this chart all about nvidia's "purevideo" support for Windows.
> > I don't know how exactly this applies to linux, XVMC, and such. Also,
> > I really don't know anything at all about ATI. Maybe there is a cheap
> > ATI card available, similar in price to the 6200, that might be better
> > for HD decoding on linux. I really don't know. Any tips would be really
> > appreciated.

I have an NVidia 6200 AGP card with component out which I use to power a
1080i/720p monitor with no problem. It's a frontend only now, but that
same card was used in a fe/be box also without any problem. The
particular card I had was the PNY version because of the component out
dongle - not all 6200 AGP cards (not many in fact) have that component
out for high def. Most of the later PCIe cards do. I also have a
6800XT AGP card installed in another fe, but I wouldn't recommend that
even though it's more powerful the card is very long, produces a lot
more heat and requires a lot more power.

Both the 6200 and the 6800XT use the new NVidia drivers (in *buntu it's
nvidia-glx-new).

Brion


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