[Intel-gfx] Pineview + libva

[Steven Newbury]

Missed CC to list (forwarded)
----- Original message -----
>From Steven Newbury <steve at snewbury.org.uk>
Sent   Thu, 24 Mar 2011, 12:07:06 GMT
To Sander Jansen <s.jansen at gmail.com>
Subject Re: [Intel-gfx] Pineview + libva

> ----- Original message -----
> > On Tue, Mar 22, 2011 at 12:29 PM, Steven Newbury <steve at snewbury.org.uk>
> > wrote:
> > > On Tue, 2011-03-22 at 14:52 +0000, Steven Newbury wrote:
> > > > I'm building a HD network media player device and thought VAAPI was
> > > > supposed to be supported on Pineview, am I wrong?
> > > 
> > > To answer my own question somewhat, from the list here:
> > > http://en.wikipedia.org/wiki/Intel_GMA
> > > 
> > > It's clear the Pineview doesn't support hw VC-1 or AVC, but does
> > > support full MPEG2, but I guess, given the utility of MPEG2 hw accel
> > > vs h.264 there isn't too much interest in getting that working.
> > > 
> > > I'll just have to hope there's enough performance from the CPU to cope
> > > with 720p material...
> > 
> > I believe libva mostly supports gen4 and up. Pineview is supposed to
> > be gen3. Perhaps XVMC may still work for it though.
> I'm using MythTV, AFAIK they've dropped XvMC in favour of VAAPI and VDPAU.
> 
> > In general don't buy hardware unless you know the driver supports your
> > desired features. I should have listened to myself when I got a G45
> > and had the hope the h264 decoding support wouldn't take too long...
> 
> Always good advise! In my case h.264 would have been really nice to have, but hw
> MPEG2 is actually very useful for MythTV, and I can always transcode HD content
> if necessary.
> 
> What would be needed to get libva supporting the gen3 MPEG2 accelerator
> functionality, is there much difference between gen3 and gen4 in that regard?