From: Michael Zayats <zmichael@po...> - 2001-10-18 11:47:40
I hope you are not bored with me yet :(
short target description: I have 2 cameras that muxed in their way to bt848,
I have to draw contents of the cameras (while alternating the mux) to two
windows with as few CPU usage as possible. my video card is i810.
I get frames in non-shared memory buffer.
As it turns out XVideo is not applicable since it can't deal with two
windows simultaneously on one port card.
so I am yours again :)
Do you know whether 2D textures might be used as a surface to draw video on?
Is DMA path of memory -> texture implemented in i810 driver? (4.1.0)
what do you think of this path at all?
I just have no real expirience with OpenGL and I am afraid of various
problems that might arise (for example RGBvsBGR, i.e. is BGR_EXT supported
in hardware (i810) or it will just eat my CPU in converting?
well, hope to get some answers, the project seems to be very simple for non
professional view of my boss :(
From: Sven Goethel <sgoethel@ja...> - 2001-10-19 07:31:01
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On Thursday 18 October 2001 14:50, Michael Zayats wrote:
> Do you know whether 2D textures might be used as a surface to draw video
> on? Is DMA path of memory -> texture implemented in i810 driver? (4.1.0)
> what do you think of this path at all?
well, look at mplayer
i do patch vo_gl2 (video out gl version2),
and there is a first draw vo_gl also.
well - for either DRI + r128 i had no problems with that,
nor with nvidia's glx.
but some said there are .. BGR related problems ..
well, just give it a try:http://mplayer.dev.hu/homepage/dload.html
... the same technique is used in xmame.xgl too ;-)
my concern about the current attack: http://www.jausoft.com/20010911-wtc/
www : http://www.jausoft.com ; pgp: http://www.jausoft.com/gpg/
voice : +49-521-2399440 ; fax : +49-521-2399442
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