[MPlayer-users] DivX5

[Augusto Beiro]

Hi again;

OK. I'm Using Xvideo on Geforce 2 usin' nVidia closed drivers. 
I think DGA is not an appropiate solution, since you have to get root
access to the system, and it's _very_ unstable, Direct Graphic Access is
direct access to hardware, i've got my machine hung a lot of times. 

Just wanna know if sdl:xv is faster than xv.

Thanx.

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>
> Augusto Beiro wrote:
> > I've always though  that Xv was faster than SDL. I've got a slow system
> > for DivX (K6-II 450 320Mb RAM Geforce II MX).
> >
> > Is SDL _really_ faster than xv?
> > DGA works awfully
>
> Depends on how well the XFree driver supports XVideo. If it does not
> support hardware colorspace-conversion and/or hardware scaling, DGA
> may/will be faster since there are less steps in between application and
> graphics card (tip: the name _D_irect_G_raphic_A_cess).
>
> Old open-source nv drivers did not support XV for all cards - don't know
> the actual situation since I've got an ATI card.
>
> Enabling MTRR has a GREAT impact on performace. For my system (not
> really fast: Cel466) it made a difference from 'unplayable' to 'at least
> 40% idle' for every divx I encountered. However not all revision of K6-2
> support MTRR. You need stepping >=12 IIRC.
>
> Marcus
>
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