Help picking a video card and other related gear

[Robert Noland]

On Sat, 2009-04-11 at 15:43 +0100, Dieter wrote:
> > I don't believe that the radeon driver does currently, but XvMC is
> > only useful for mpeg2 content, which limits it somewhat.
> 
> Bridgman doesn't care about video decoding, so it is at the very bottom of
> the ATI list.  :-(  Grarpamp mentioned OTA ATSC which is mpeg2, so XvMC is
> useful.  (And also what I'm looking for.)  Supposedly VIA extended XvMC
> so that it is useful for other codecs.  But I haven't found info about
> which boards openchrome supports, and what features really work.

Keep in mind that all we have is the 2d openchrome driver... As I stated
before, I still don't have hardware to work on the 3d side of things,
which most drivers need to do XvMC.  So, I'm not sure if the openchrome
ddx is able to pull this off somehow, but I doubt it.  The client needs
to be able to send the stream directly to the hardware.

It is looking like there may be wider support for VDPAU in the not too
distant future.  Intel is holding on to VAAPI.

> > > Recent GPUs can offload most of the video decode duties, but this
> > > hasn't been documented and FLOSS code hasn't been implemented yet.
> > > (Unless you can find something in the Chrome family you like.)
> > 
> > Not sure about that actually... VIA has released docs, but we don't have
> > drm support at this point as I still don't have VIA hardware to work on.
> 
> Sorry, the "hasn't been documented and FLOSS code hasn't been implemented yet."
> referred to ATI's UVD/UVD2.  And my info on VIA is minimal.

ATI may actually get on-board with VDPAU, not sure yet.

robert.

> > > The best source of info on the state of ATI FLOSS I've found is
> > > http://www.phoronix.com/  The gang there is mostly penguins,
> > > but I'm assuming that anything that goes into x.org should
> > > work on BSD?
> > 
> > Mostly... I'm actually ahead of the penguins on ATI support right now.
> > At least as far as having code pushed and in mainline trees.
> 
> Excellent!
> 
> >> 2) The ability to color calibrate one or both cards via the xorg
> >>    driver would be useful. I can spyder it from a windows box so
> >>    just having the xorg knobs would suffice.  Does anyone do this
> >>    under xorg?
> 
> > You can set rgb gamma, is that what you are referring to?
> 
> Grarpamp might be talking about something like this:
> 
> http://www.behardware.com/articles/580-1/the-spyder-2-an-affordable-colorimeter.html
> 
> So far I haven't seen one of these articles explain what happens
> "under the hood".
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-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD
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