Re: [SLE] ATI driver in 10.1 - dri or xv but not both -- mplayer -vo sdl (SDL)
- From: Matthias Hopf <mhopf@xxxxxxx>
- Date: Mon, 19 Jun 2006 18:56:00 +0200
On Jun 18, 06 13:33:08 -0400, Bryan J. Smith wrote:
On Sun, 2006-06-18 at 15:28 +0200, Hans du Plooy wrote:
Yes, that should work. mplayer -vo x11 -zoom works just as well for me,
but the CPU usage is higher, and when I play DVDs directly from disc it
becomes jerky.
I haven't benchmarked the differences, as I have an Athlon 64 3200+ with
2GB of RAM and a year-old GeForce 7800GTX 256MB, but you're probably
right. Executing SDL/GL atop of X11 is probably slower than direct
overlay framebuffer.
-vo X11 will be *much* slower, both color conversion *and* resizing is
done in software, the later being very slow.
-vo gl2 will be pretty fast, if the card supports various extensions
that allow for color conversion. Can be as fast as (or even faster than)
XVideo (overlay in Windows speak), but does not have to be. At least,
resizing comes always for free.
I did however find that for some reason the ATI driver doesn't enable
both DRI and XV by default.
The nVidia driver does _not_ use DRI, and I believe this is the case
with ATI's driver as well. nVidia and ATI provide their own libGL and
No, it is not. The ATI driver uses dri. Yes, they provide their own
libGL.
DRI is a completely different OpenGL capability from Precision Insight.
The ATI R100 (7500-8000 series) DRI driver, which was also adapted for
the R200 (8500-9200) series, was written by Precision Insight under
contract by the National Weather Service (IIRC?), independent of ATI.
Both R100 and R200 miss the extensions needed for color conversion using
OpenGL.
I added this to my xorg.conf under the device section for the card:
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
If these options are not included in the configuration after creating
the configuration with sax2, this is a bug and should be reported.
Matthias
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