Mark Vojkovich ([EMAIL PROTECTED]): > On Mon, 4 Feb 2002, Steve Kirkendall wrote: > > I'd be surprised if a voodoo card could do 2048x2048. It's one of the > worst overlay hardware. Doesn't seem to do the correct YUV->RGB > colorspace conversion either (ie. not CCIR601).
Arguably we shouldn't be using the 601 transfer functions anyway, we should use the ITU-R BT.709 ones instead since CRTs are likely closer to the HDTV standard. I'd also add that MPEG2 video actually specifies the 709 transfer function (those mmx'ified yuv2rgb routines everywhere are usually doing the outdated transfer). Do you know what conversion they are using? > > the smoothing seems to kick in at 1024x768. This is true for DVD > > player programs too, not just my XMMS plugin. But is there some way > > I can detect this? DVDs look better when played with filtering in a > > 1024x768 screen than they do unfiltered in a 1600x1200 screen. > > There's no way to detect that. Ideally, DVD's would look best at > 720x480 without scaling. Where best is defined as stretchy. 720x480 at 4:3 or 16:9 isn't square pixel so unless you're lucky you always need to scale. :) For best as in least artifacts due to bilinear filtering of gamma corrected images in nonlinear space I'd have to agree with you also. :) -- Billy Biggs [EMAIL PROTECTED] _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
