Re: drivers for USB webcams
Riku Voipio wrote:
>On Sun, Aug 28, 2005 at 03:14:18PM -0700, Lee wrote:
>>I'm looking at starting a project that will take video input from
>>multiple usb based webcams. I understand that some webcam manufacturers
>>supplied x86 based object files for linux drivers so they didn't have
>>to release information on interfacing to their products. Are there
>>anyopen source (or Arm based) drivers for any brands of USB webcams
>>contained in the Debian package? I'm particularly interested in any
>>cams that have pan/tilt/zoom capability. Thanks in advance.
>The two most common webcam chips, pwc and ov511 have open-source
>drivers. PWC driver used to have binary-only "decompressor" module,
>that allowed higher framerate and/or resolution while losing some
>image quality. That code has been since reverse-engineered, and is
>available in source format.
>As far as I know, only "Logitech QuickCam Sprehe", using driver
>pwc has pan/tilt/zoom suppport, but it's image quality isn't stellar
>and the device is quite expensive for it's features.
>Since most webcams use usb 1.1 bus, you will run out of USB bandwith,
>if you try to read video from more than one webcam at a time. You might
>want to consider network-based cameras, such like "Linksys WVC54G"
>or any of the Axis cameras.
What do you use for viewing multiple camera streams
and has the viewing software been ported to run on a
variety of architectures, including arm? x86? AMD64?