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Author Topic: Silvercrest webcam  (Read 6517 times)
Jan Gnodde
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« on: May 29, 2007, 00:54:37 AM »

Yesterday I purchased a (secondhand) Silvercrest 1.3 Megapixel webcam. When I connect it to my Pardus computer it is recognized and the em28xx module is loaded.
According to /var/log/messages two devices are made: /dev/video0 and /dev/vbi0
"lsusb" says

Code:
Bus 001 Device 006: Id eb1a:2820 eMPIA Technology, Inc.

But when I try to get a picture of it, it doesn't work.
I tried the program "test-webcam", which uses mplayer. And mplayer gives me:

Code:
WARNING: YOU ARE USING V4L DEMUXER WITH V4L2 DRIVERS!!!
As the V4L1 compatibility layer is broken, this may not work.
If you encounter any problems, use driver=v4l2 instead.
Bugreports on driver=v4l with v4l2 drivers will be ignored.

And the program "webcam", which comes with xawtv, and should take jpeg-snapshots with the webcam, does not do that.

Does anybody know a workaround?

Jan.
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« Reply #1 on: May 29, 2007, 01:48:47 AM »

This has me stumped because V4L2 is dependant on V4L1 and as it says on the V4L2 website it does not have support for the 2.6 kernel... Ahhh!!! I'm so confused that page hasn't been updated since 2003! Hmm... I'm going to look at this more.  Huh?

Update: Ok so it does have support for the 2.6 Kernel but it has since changed and they haven't updated it for the change...

Update #2: Ok i found a driver but it's now in the 2.6 kernel so... Hmm...

Update #3: Whhooo I'm confused i got to go, Dinner and maybe i'll try to look at it again... It just seems like it all leads back to the kernel...
« Last Edit: May 29, 2007, 02:05:29 AM by Tinker » Logged
Jan Gnodde
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« Reply #2 on: May 29, 2007, 02:09:48 AM »

Aha, I found a part of the solution: I changed the /usr/bin/test-webcam script into:

Code:
mplayer tv:// -tv driver=v4l2:device=/dev/video0:width=640:height=480:noaudio -x 800 -y 600 -vf-add pp=hb:a/vb:a,hqdn3d,mirror

Originally it said ...driver=v4l:..., so I put a "2" after it.
Now mplayer runs, and opens a window, but it is totally green, so no picture from the webcam.

Jan.
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« Reply #3 on: May 29, 2007, 04:50:30 AM »

Hum... How bout changing that video0 to vbi0 that may have to do something with it.. It could just be using the wrong hardware...
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Jan Gnodde
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« Reply #4 on: May 29, 2007, 05:52:06 AM »

Noop, that gives a green screen too...

Jan.
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