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From: Maxim Levitsky <maximlevitsky@gmail.com>
To: Haavard Holm <haavard.holm@ntnu.no>
Cc: video4linux-list@redhat.com
Subject: Re: Varying frame rate
Date: Sun, 16 Aug 2009 03:43:52 +0300	[thread overview]
Message-ID: <1250383433.28382.2.camel@localhost.localdomain> (raw)
In-Reply-To: <4A872D3F.6020003@ntnu.no>

On Sat, 2009-08-15 at 23:48 +0200, Haavard Holm wrote:
> Hello,
> 
>   I am writing an application that capture video/pictures from a webcam.
> My program is built on moinejf.free.fr/*svv*.*c*
> which again is built on v4l2spec.bytesex.org/v4l2spec/*capture*.*c*
> 
> OS is linux 2.6.29.6-217.2.3.fc11.x86_64
> Webcam is "Logitech Quickcam Pro for Notebooks" (046d:0991)
> 
> My obeservation is : Depending on what my camera focus on, the framerate
> varies from 5 to 15 fps. I have tried several times, same result.
> 
> Why is that. How can I avoid this ?
I have observed similar issues with uvc camera on my aspire one (low
frame rate while the illumination is low)

Probably this is a hardware issue, and maybe there is a control to turn
this off.

Best regards,
	Maxim Levitsky


> 
> Best regards
> 
> Håvard Holm
> 
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> https://www.redhat.com/mailman/listinfo/video4linux-list

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  reply	other threads:[~2009-08-16  0:44 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-15 21:48 Varying frame rate Haavard Holm
2009-08-16  0:43 ` Maxim Levitsky [this message]
2009-08-16  6:03   ` Jean-Francois Moine
2009-08-16  6:09     ` Maxim Levitsky
2009-08-16  8:35     ` Haavard Holm
2009-08-16  9:09       ` Jean-Francois Moine
2009-08-17 13:52         ` RE : " Jonathan Lafontaine

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