[MPlayer-users] Playing multiple files at the same time?

Reimar Döffinger Reimar.Doeffinger at gmx.de
Sat Nov 28 14:18:49 CET 2009


On Sat, Nov 28, 2009 at 01:26:30PM +0100, Oliver Seitz wrote:
> So when writing software that is to be run on arbitrary machines it might
> be a good idea to at least avoid runtime scaling on more than one video
> simultaneously. I think we can agree on that, no?

I don't think there's any graphics card that can't run more than one
-vo gl if they support OpenGL at all (of course with PCI cards you have
to be careful not to saturate the PCI bandwidth).
And the Intel 945GM has enough power to play at least two DVD-resolution
videos with -vo gl:yuv=2 (i.e. hardware OpenGL YUV->RGB conversion) at the
same time (and it provides 16 XVideo ports anyway, admittedly textured XVideo
so it is basically the same as -vo gl:yuv=2, though probably a bit faster).
For OpenGL this applies down to GeForce 3-generation graphics cards, though
you'll have to use -vo gl:yuv=1 or -vo gl:yuv=5 instead to get accelerated
YUV->RGB, or if you can afford the conversion on the CPU, it should work with
plain -vo gl down to TNT2-generation cards (including some of the VIA ones,
if you manage to get OpenGL to work at all on them, personally I don't
envy anyone who has to make things work on VIA graphics stuff, I don't know
if there's anything they can do properly up to and including plain 80x25 text).


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