[Gambas-user] webcam weirdness

Benoît Minisini gambas at ...1...
Tue Aug 25 14:06:48 CEST 2009


> > Not sure what to include with this, please ask for additional info.
> > Attached is a pict of some webcam weirdness with no error messages
> > generated.  Doesn't appear to be a webcam issue as the image looks fine
> > with Cheese Webcam Booth.
> >
> > This was taken with gambas v3 SVN as of yesterday running the WebCam
> > example program.
> >
> > usb 4-1: new full speed USB device using uhci_hcd and address 4
> > usb 4-1: New USB device found, idVendor=0733, idProduct=0401
> > usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> > usb 4-1: configuration #1 chosen from 1 choice
> > gspca: probing 0733:0401
> > gspca: probe ok
> > [andy at ...40... trunk]$
> >
> > Only gambas debug info was this:
> >
> > (WebCam:25423): Gdk-CRITICAL **: gdk_x11_atom_to_xatom_for_display:
> > assertion `atom != GDK_NONE' failed
> > gambas v4l2: SPCA501 [11]
> > gambas v4l2: SPCA501 [11]
> > gambas v4l2: SPCA501 [11]
> > /snip
> > gambas v4l2: SPCA501 [11]
> > gambas v4l2: SPCA501 [11]
> >
> > Thanks
> > Andy
>
> This is an image conversion problem: the SPCA501 is an image format, and
> the gb.v4l component prints it each time it cannot convert it to RGB.
>
> Apparently the component can convert only a few format to the one supported
> by Gambas: RGB & RGBA.
>
> But I don't know what SPCA501 is exactly. A conversion library format is
> needed...
>
> Regards,

I know what should be done: with v4l is developed a library named 
libv4lconvert that does all the conversion stuff. The gb.v4l component must 
use that library, instead of its own conversion routines.

Regards,

-- 
Benoît




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