[mythtvnz] Multithreaded H.264 playback

[Douglas Pearless]

180.29 VDPAU?

Steve V wrote:
> I've just built a PC with a ASUS M3N-H/HDMI. VDPAU is working, still 
> some testing and tuning to be done.
>
> I can view TV3 with around 12%CPU usage on one core. I have some bad 
> blocking on fast moving objects on TV1, 2 and 3.
>
> Cheers
>
> Steve
>
> ------------------------------------------------------------------------
> *From:* Douglas Pearless <Douglas.Pearless at pearless.co.nz>
> *To:* MythTV in NZ <mythtvnz at lists.linuxnut.co.nz>
> *Sent:* Sunday, 15 February, 2009 5:32:39 PM
> *Subject:* Re: [mythtvnz] Multithreaded H.264 playback
>
> I'd skip the 780G chipset and go for one that uses a NVIDIA 8300, or
> 9300/9400 video chipset so you can actually use VDPAU as I do not recall
> the 780G as supported by VDPAU.
>
> I am currently thinking about a ASUS M3N-H/HDMI (
> http://www.asus.co.nz/products.aspx?l1=3&l2=149&l3=676&l4=0&model=2181&modelmenu=1 
> <http://www.asus.co.nz/products.aspx?l1=3&l2=149&l3=676&l4=0&model=2181&modelmenu=1> 
>
> <http://www.asus.co.nz/products.aspx?l1=3&l2=149&l3=676&l4=0&model=2181&modelmenu=1 
> <http://www.asus.co.nz/products.aspx?l1=3&l2=149&l3=676&l4=0&model=2181&modelmenu=1>> 
>
> ) as you can set the video memory to 512MB which is the minimum you
> require for the current VDPAU support, you can get this for under $188.
>
> Does anyone use / tried this one for VDPAU??
>
> If you go for the above, I'd keep the PVR150 for the analog MPEG2
> encoder, dump the BTTV card (save your CPU cycles) and get a Hauppauge
> Nova-t 500 dual DVB-T tuner so that all your front end tuners deliver 
> data that can be stream directly to your hard disk with minumal CPU
> overhead.  If you use a VDPAU compatible video card with 512MB of video
> RAM then I suspect you can get away with a  lower powered CPU, provided 
> you do not want to do lots of simultaneous recording, playback and
> commerical flagging at the same time.  I'd recommend you get a low end
> AMD dual core and upgrade if and when you need to.
>
> Cheers
> Douglas.
>
>
>
> Aaron Whitehouse wrote:
> > Hello all,
> >
> > My 2002 MythTV PC has finally given up the ghost and I am replacing it
> > with a new AMD 780G setup. We are limited to analogue (one software bttv
> > card and a hardware Hauppauge PVR 150) as we don't have the correct
> > aerial or DVB cards.  One day soon, I would like to move to DVB-T HD.
> > I'm a long time member of this list and know about VDPAU etc.
> >
> > I am currently trying to decide on the CPU and am choosing between a
> > cheap Sempron LE-1200 and a cheap dual core Atlon X2 5000+ (or similar).
> >  What I was hoping someone could tell me is: what speed dual core I
> > would need to decode Full HD H.264 in software once the ffmpeg-mt
> > patches trickle down into the binaries?  Obviously, in an ideal world,
> > AMD would release open specs of the UVD2 chips, or at least include
> > support in the Catalyst drivers.
> >
> > If I would need some ridiculously expensive chip, then I may as well buy
> > a cheap Sempron and replace it in the future (when prices come down) if
> > I ever need to decode HD in software. If I could decode HD on an X2
> > 5000+, then I would likely buy one of those and take advantage of better
> > multitasking etc. in the interim.
> >
> > Thanks for your help,
> >
> > Aaron
> >
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