On 08/29/2009 06:57 PM, Dotan Cohen wrote:
2009/8/28 Thomas Kaiser <v4l@xxxxxxxxxxxxxxx>:
On 08/28/2009 08:40 PM, Dotan Cohen wrote:
I have the MSI StarCam 370i Webcam and I have trying to use it with
Kubuntu Linux 9.04 Jaunty. According to this page, "The StarCam 370i
is compliant with UVC, USB video class":
http://gadgets.softpedia.com/gadgets/Computer-Peripherals/The-MSI-StarCam-370i-3105.html
According to the Linux UVC driver and tools download page, "Linux
2.6.26 and newer includes the Linux UVC driver natively" which is nice
as I am on a higher version:
$ uname -r
2.6.28-15-generic
However, plugging in the webcam and testing with camorama, cheese, and
luvcview led me to no results:
jaunty2@laptop:~$ luvcview -f yuv
luvcview 0.2.4
SDL information:
Video driver: x11
A window manager is available
Device information:
Device path: /dev/video0
Stream settings:
ERROR: Requested frame format YUYV is not available and no fallback
format was found.
Init v4L2 failed !! exit fatal
jaunty2@laptop:~$ luvcview -f uyvy
luvcview 0.2.4
SDL information:
Video driver: x11
A window manager is available
Device information:
Device path: /dev/video0
Stream settings:
ERROR: Requested frame format UYVY is not available and no fallback
format was found.
Init v4L2 failed !! exit fatal
jaunty2@laptop:~$ luvcview
luvcview 0.2.4
SDL information:
Video driver: x11
A window manager is available
Device information:
Device path: /dev/video0
Stream settings:
ERROR: Requested frame format MJPG is not available and no fallback
format was found.
Init v4L2 failed !! exit fatal
Some more details:
jaunty2@laptop:~$ ls /dev/vi*
/dev/video0
jaunty2@laptop:~$ dmesg | tail
[ 2777.811972] sn9c102: V4L2 driver for SN9C1xx PC Camera Controllers
v1:1.47pre49
[ 2777.814989] usb 2-1: SN9C105 PC Camera Controller detected (vid:pid
0x0C45:0x60FC)
[ 2777.842123] usb 2-1: HV7131R image sensor detected
[ 2778.185108] usb 2-1: Initialization succeeded
[ 2778.185220] usb 2-1: V4L2 device registered as /dev/video0
[ 2778.185225] usb 2-1: Optional device control through 'sysfs'
interface disabled
[ 2778.185283] usbcore: registered new interface driver sn9c102
[ 2778.216691] usbcore: registered new interface driver snd-usb-audio
[ 2778.218738] usbcore: registered new interface driver sonixj
[ 2778.218745] sonixj: registered
jaunty2@laptop:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 002: ID 413c:8126 Dell Computer Corp. Wireless 355
Bluetooth
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 004: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
Bus 004 Device 003: ID 045e:00db Microsoft Corp. Natural Ergonomic
Keyboard 4000 V1.0
Bus 004 Device 002: ID 05e3:0604 Genesys Logic, Inc. USB 1.1 Hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 0c45:60fc Microdia PC Camera with Mic (SN9C105)
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
jaunty2@laptop:~$
Anything missing? What should I do? Thanks in advance!
Hello Dotan, me again ;-)
Looks like your cam is detected, but does not provide a good frame format.
You my have to use libv4l to convert to a know format.
See: http://hansdegoede.livejournal.com/7622.html
Thanks. I will go through that tomorrow, but in the meantime I got a
strange result. Despite the fact that this is a 32 bit Kubuntu
install, I got these results from the tests at the beginning of the
page:
jaunty2@laptop:~$ ls -d /usr/lib64
/usr/lib64
jaunty2@laptop:~$ ls -d /usr/lib32
ls: cannot access /usr/lib32: No such file or directory
jaunty2@laptop:~$
According to what is written, with those results I should use the
Fedora multilib instructions. Does that not sound unusual?
Yes, this looks somehow strange. I don't have a 32 bit system at the
moment to verify.
You know you have 32 bit, then just use the none multilib instructions.
You can install the version which ships with Ubuntu:
sudo apt-get install libv4l-0
then do,
To use a v4l1 aware application this should do it:
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so <your favorite webcam app>
For a v4l2 aware application you should use:
LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so <your favorite webcam app>
to convert to a known video format.
Thomas
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