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Re: [pwc] Multiple cameras

To: "Mathieu Bouchard" <>
Subject: Re: [pwc] Multiple cameras
From: "Søren Hauberg" <>
Date: Sun, 15 Apr 2007 09:35:29 +0200
2007/4/15, Mathieu Bouchard <>:
On Sun, 15 Apr 2007, Luc Saillard wrote:

> Yes it's possible but the usb bandwidth is shared between your two cameras.
> Pwc camera can only use the Usb1.1 so it's limit to ~800Kbytes/s. When
> displaying with two camera (or more), so you can try to:
> - lower resolution
> - enable compression (use a greater level)
> - connect each camera on a different USB host controller

Another solution: Lower the framerate. The Logitech Quickcam Pro 4000
supports framerates that are multiple of 5. (I don't know about other
models)
I tried this and now it's possible to get images from the cams in 320x240. Thanks!

Søren
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