[mythtv-users] latest recommendation for VDPAU PCI card
f-myth-users at media.mit.edu
f-myth-users at media.mit.edu
Sun Nov 1 07:55:48 UTC 2009
> Date: Sat, 31 Oct 2009 13:44:52 -0400
> From: Raymond Wagner <raymond at wagnerrp.com>
> On 10/31/2009 04:36, f-myth-users at media.mit.edu wrote:
> > > Date: Fri, 30 Oct 2009 10:34:30 -0400
> > > From: Calvin Harrigan<charriglists at bellsouth.net>
> >
> > > You can get a 9500GT without a fan. The one I have has a huge heatsink
> > > and keeps pretty cool. There is a 512 and 1GB version.
> >
> > > http://www.newegg.com/Product/Product.aspx?Item=N82E16814187035
> > > http://www.newegg.com/Product/Product.aspx?Item=N82E16814187034
> >
> > These cards claim to have a PCI Express 2.0 x16 interface; an MSI
> > K9N2G Neo motherboard I'm considering auditioning one in only has
> > the 1.0 interface (half the speed). None of the Newegg reviews
> > talk about this; does anyone have any idea whether the speed cut
> > will matter?
> Think about what you'll be sending across the bus. You're talking
> compressed video at 5-30mbps that you already pulled from a much slower
> PCI or PCIe x1 card. Even if you're not using VDPAU, the most data
> you're going to be sending across is 1080p60 at 3Gbps. Even the 4GBps
> of PCIe 1.0 is far beyond any usage you might see.
> There have been concerns about compatibility between 1.0 and 2.0 parts,
> but I've not heard of any examples of such problems.
It's actually compatibility I was talking about (unclearly, alas)
above; I was thinking of a thread that I couldn't quite remember
enough to find but Nick Rout did (thanks!), namely this one:
http://www.gossamer-threads.com/lists/mythtv/users/404846
So should I try it? I dunno... [Crap---and while I was trying to
decide, the 1GB card has apparently gone back up by $10 and is no
longer the price of the 512MB. But do I need more than 512MB? For
SD, presumably not; for HD, I can't remember whether 256 or 512 was the
magic number, especially since things have been changnig a bit and
there's the recent work on automatically allocating more resources
to difficult streams...]
Assuming that I -need- a deinterlacer for SD-interlaced capture ->
H.264 -> SD CRT TV. I'm still not sure about that step.
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