Re: [xine-user] optimum video quality on a CRT projector.

[Marcel J. <ko...@ho...>]

On Friday 03 September 2004 16:17, Michael Roitzsch wrote:
> Scaling does not get any better than with Xv. XShm is far worse, since xine
> scales the image by simply doubling or removing lines. Everything else
> would require some quite CPU expensive filtering (like bilinear filtering,
> which does not look very good either). The quality of the Xv scaling
> depends only the algorithm used by the graphics card. Unfortunately, these
> features seem to have a low priority for todays GPU manufacturers. They
> seem to concentrate on 3D throughput.

That's interesting. Is anyone experimenting with scaling alorithms for xine ?

Getting extra CPU power would be no problem if it really helps (I currently 
have a AMD2500+barton running on my htpc). I'm willing to pay for quality,but 
what I'm afraid of when buying nvidia or ATI cards is that I pay a lot for 
the 3D stuff that I will never use (I haven't played a single game in the 
past 10 years besides 2D-chess:-) ).
I'm still a little worried about sync though. I have no idea which cards on 
Linux are well supported and where I can find this information. Does anyone 
know more about this ?

> If you use the DXR3 that way, you will lose some resolution due to the
> redundant digital->analog->digital conversion. I doubt that the TV out of
> the DXR3 (although it's quite good) has the bandwidth to transport all 720
> pixels per line.

I'm also quite certain that the dxr3 can't do the full 720, when watching on 
my TV, the dxr3 output is certainly sufficient. On a 2m screen the result is 
still quite good, but since the projector is capable I just like to have it a 
little better :-)

Regards,
Marcel