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LtJax

GLX_NV_video_out

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hello I've noticed the extension GLX_NV_video_out shows up in my GLX extension string. (using a GF4200Ti on Linux/X) However, I haven't found any information on it anywhere on the net but the function entry points in nvidia's glxext.h. Those still don't give me a real clue as to what the extension actually does. Anyone got a clue as to what it is supposed to do? My guess is that allows direct access to the TV out on nvidia cards..

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Interesting, I never noticed this extension. Strange that Google only returns one single result, being the said glxext.h. Maybe try posting this in the opengl.org developer forums ? There are a few guys from the nVidia driver development team on there.

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Finally got an answer from nvidia's programming support. Just for the record, here's what I got in the reply:

Quote:

GLX_NV_video_out is a NVIDIA specific extension for use with
Quadro FX 4000 SDI.

This extension permits a color/depth pbuffer to be used for rendering
that is used display on a video output device (like SDI). p-buffers can
be 8-bits per component or fp16 per component. Once a p-buffer
is available to be displayed, it can be sent directly to the SDI
device (up to 10-bits per component).


This is pretty interresting because of the 10-bit component display, if you have one that supports it. Also, I guess it could be used for video overlays in linux..

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