[mythtv-users] Temporal 2x vs Temporal-Spatial 2x

[Steven Adeff]

On Thu, Feb 9, 2012 at 9:14 AM, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> Hi
>
> On 8 February 2012 03:52, Yeechang Lee <ylee at pobox.com> wrote:
>
>> Not in my experience. After happily running Temporal 2X with a 8400GS
>> I got a GT430 thinking Advanced 2X would be noticeably different. If
>> there's an improvement it's too subtle for my eyes.
>
> The difference is noticeable in fast moving game.
>
> I remember a few years ago when VDPAU came out and I was experimenting.
>
> Where the difference was most noticeable was during a basketball game.
>
> With Advanced 2X, the ball could be seen flying across the screen.
> With Temporal 2X, it was more like a blurr..
>
> Having said that, the difference is subtle, and I went back to using
> the built-in 9400M IGP instead of the external NVidia 220GT (which
> does Advanced 2X).
>
> Because at the end of the day, I was more keen on power saving and
> total silence.
>
> On my backend/HD projector frontent, I use a GT430, honnestly, that
> card is quiet as ... and it does HD audio

I think people here are mixing up the ability to decode various
codecs, the different VDPAU "levels", and the ability to properly do
the various deinterlace methods, particularly Advanced 2x.

I don't think anything lower than 100 for the MIXER TEMPORAL_SPATIAL
is worthy of using Advanced 2x for sports on a larger screen, you'll
get noticeable hiccups.

It looks like from the "VDPAU testing tool thread" on nvnews that the
220, 240 and 8800 are the kings of processing 1080i content.

The 400 and higher series do have newer VDPAU versions which allow for
decoding of more advanced codecs, and have the "HD" audio pass through
ability. The higher end cards in the 500 line have respectable MIXER
TEMPORAL_SPATIAL performance, but they're expensive.

If MythTV ever supports PBP with VDPAU the MIXER TEMPORAL_SPATIAL will
be even more important and cards with anything less than 150 will not
be good for larger TV's and sports content.

Fermi is apparently the worst thing to happen to video playback.

-- 
Steve
http://www.mythtv.org/wiki/User:Steveadeff
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