Beagle Board USB web camera interface

GoogleGroups
1

Which USB web camera will you suggest most suitable for interfacing
with BB considering the device driver availablity. The required
resolution is 640x480 px.

2

Quickcam PRO 9000 is running quite good for me. In 640x480 you can get
30 frames per second and if you are using libwebcam it is quite easy to
control it, even the focus (min. distance approx. 50mm).

Sascha

ASG_Jodhpur wrote:

3

Hi Sascha,

Thanks for letting me know about libwebcam. I am interested in using
it on BB.
What is the easiest way to install it (libwebcam) on BB?.
Can I build it from sources on BB using native compiler or need to
crosscompile on PC?
Is there a cmake for BB?

Regards

Jan

4

Hi,

May be this can help.

http://groups.google.com/group/android-porting/browse_thread/thread/f6b9c22ee45a68c4/f09eff8b665fc9?q=V4L2+Camera+interface#00f09eff8b665fc9

Let me know your comments

Cheers,
Suresh Kalidasan.

5

I crosscompiled it on a PC as usual. You need the uvcvideo.h from the
kernel source tree to do that and as you mentioned cmake. Take a look to
the documentation and the forum at www.quickcamteam.net, with the
current kernels it goes straight forward. I had some problems with the
older version, but if you get the latest snapshot of the library it
should work as for me.

Sascha

janek wrote:

6

Sascha,

Thank you.
I was able so far to build the library for PC and the test program,
which runs partially, but has problems (errors) reading XML file.
Does it work for you?
My next step is to crosscompile for BB.
Not able to find so far how to set the rate - frames per second. Do
you know how to do it?
Apologies if it's of topic, but hope other people here might benefit,
too.

Regards

Jan

7

What kind of errors do you get? I had some problems too, but after all
it is working for me.

Maybe this can help (my problems with that cam on bb):
http://forums.quickcamteam.net/showthread.php?tid=834
http://forums.quickcamteam.net/showthread.php?tid=821

I don't know if you can set the framerate somewhere, i didn't find it
too, but with that pro9k you will get 30 frames per second if the
shutter time is short enough. If you find an option to fix it, please
let me know!

Sascha

janek wrote:

8

Thanks for now, Sascha

I will let you know if a have a significant progress.

Jan