Lawrence Glaister wrote:
>
> I am running 2.4.0-test1-ac5 with claudios
> ov511_1.15cm3-2.4.0test1-ac4.patch. Picture quality is improving and I have
> survived roughly 30000 open/snap picture/close cycles between kernel
> crashes( I am running a time lapse camera experiment). One item that seems
> to be a problem with the webcam (creative labs webblaster III) is that the
> auto gain control seems to hunt badly under certain lighting conditions,
> jumping from a dark picture to a light picture.... has anyone noticed
> similar behavior?
I have noticed this too with my D-Link DSB-C300. It seems to happen the
most at the higher resolutions while streaming, presumably due to the
long interval between frames. I have seen it with single frame captures,
but only about 1/5 of the frames are over/under exposed. I assume it is
a deficiency in the camera's AGC algorithm that causes it to repeatedly
overcompensate and undercompensate for lighting conditions. There might
be a register setting for the AGC's damping factor, but I can't say
since I don't have the docs with me right now. AGC could be done in
software if we think we can do it better, I suppose.
> Any register mods that may be worth a try?
> I have not been able to contact claudio lately at conectiva or helllabs...
> seems to be a name server problem with my ISP. Are you still alive claudio?
> Is there a more recent ov511 patch?
My mail server has been having problems resolving his hostname too. The
mail does eventually get through, though.
> Mark, how sync'd are your and claudios patches?
Now that I am done with all of my non-Linux work for the next few
months, I will be able to keep our code in sync. I will merge in his
changes tomorrow.
--
Mark McClelland
[EMAIL PROTECTED]
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