I've been trying to optimize these settings too, and maybe I can help you in exchange for some help for myself. :)<br><br>I see on the wiki (<a href="http://www.mythtv.org/wiki/VDPAU">http://www.mythtv.org/wiki/VDPAU</a>) that vdpaucolorspace "Sets ITU BT601 and ITU BT709 (BT709 for HD videos and BT601 for SD) colour spaces, by default or automatically."<br>
<br>I found some background on the specifics of these here:<br><ul><li><a href="http://en.wikipedia.org/wiki/Rec._709">http://en.wikipedia.org/wiki/Rec._709</a></li><li><a href="http://en.wikipedia.org/wiki/Rec._601">http://en.wikipedia.org/wiki/Rec._601</a></li>
</ul>I also see that the wiki says "Why/when it should be used: always, used in MythTV default profiles." So this sounds like something I should make sure is set too, as well as the others listed there that are recommended for my card..<br>
<br>What I don't see, is where to set it. I'm running 0.23-fixes (26437) and while the wiki says it's in "Utilities/Setup -> Setup -> TV Settings -> Playback -> Playback Profiles -> Custom Filters" -- In my screens, I don't see a "Custom Filters" label in my "Playback Profiles" page in those settings. I do see the selector for Playback Profile (with "add new" and "delete"), then the elements of that profile, which one can edit individually. Nothing in this page or anything to which I can drill from there is labeled "Custom Filters". Is this a documentation mismatch or a brain fart on my part?<br>
<br>HTH and thanks for any help too,<br>EW<br><br><div class="gmail_quote">On Sat, May 29, 2010 at 01:59, Paul Gardiner <span dir="ltr"><<a href="mailto:lists@glidos.net">lists@glidos.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
I've just joined the wonderful world of vdpau and I'm<br>
trying to tweak out every last bit of quality from it. I'm<br>
confused though about the vdpaucolorspace setting. From<br>
what I can find on the web, itu601 doesn't define a single<br>
color space. There are all sorts of them, and particularly<br>
PAL and NTSC differ. Is that right?<br>
<br>
Does the itu601 setting refer to the NTSC color space?<br>
<br>
Does auto mean use itu709 for HD and whatever itu601 is<br>
for SD?<br>
<br>
I'm in the UK, and all my SD content is supposedly PAL.<br>