RE: [GnomeMeeting-list] [PATCH] QCIF Small (Scaled) capture mode



Brian,

I have the same camera that you do.  I haven't been able to get it to talk
to my system.  Please share your config - OS, version, hardware, drivers,
...

Thanks

Les

-----Original Message-----
From: bteague rice edu [mailto:bteague rice edu]
Sent: Tuesday, December 17, 2002 2:00 PM
To: gnomemeeting-list gnome org
Subject: [GnomeMeeting-list] [PATCH] QCIF Small (Scaled) capture mode


Please find attached a fairly simple patch (against the 0.94.1 tree) that
adds
another capture size to GnomeMeeting.

This capture size I have named "Small (Scaled)".  Its function is simple; it
captures the image from the camera at CIF resolution, then, after
conditioning
by H323VideoDevice::Redraw, it scales the image down to QCIF for
display/transmission.  

On my Logitech QuickCam Web, this improves QCIF image quality dramatically.
I'm
not sure if others have the same problems that I do; perhaps it's a driver-
or
hardware-specific problem. To see the effect without applying the patch,
compare
the QCIF image at regular (100%) zoom to the CIF image zoomed out to 50%
(without bilinear interpolation).  This is the image that my patch gives at
100%.

Does this seem useful to anyone else?  If not, Damien, don't feel compelled
to
apply it.  It's rather hackish; a more elegant solution would have required
moving some code around.  It's certainly something I will continue to
maintain,
because it makes GnomeMeeting that much more usable for me over slow links.

Regards,
Brian Teague



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