[Gambas-devel] V4L2 for Gambas ...

[Ron_1st]

On Wednesday 21 January 2009, Gareth Bult wrote:
> Sorry, my question was, why were some (arbitrary) properties put into a subclass called "features" rather than just being properties of the class. For example;
> 
> Why do we use;
> 
> webcam.Features.Name
> 
> Rather than;
> 
> webcam.Name
> 
> It just seems to add a layer of complication for no apparent reason ??
> 
> Gareth.
> 
> 
> ----- Original Message -----
> From: "Benoit Minisini" <gambas at ...1...>
> To: "mailing list for gambas developers" <gambas-devel at lists.sourceforge.net>
> Sent: Tuesday, 20 January, 2009 11:34:56 PM GMT +00:00 GMT Britain, Ireland, Portugal
> Subject: Re: [Gambas-devel] V4L2 for Gambas ...
> 
> On mercredi 21 janvier 2009, Gareth Bult wrote:
> > Ok,
> >
> > I can do this .. can you tell me whether "Features" should exist ... and if
> > it should;
> >
> > a. Why?
> > b. Should the "Max" / "Min" 's be put there .. ?
> >
> > Gareth.
> >
> >
> 

Could be because not every hardware video device _has_ these controls.
the /dev/videoX is the link to the stream.
Features are a dev_sub thing on the /dev/videoX
My videocard has some Features that not all cards have too

if webcam.Features then
	webcam.Features.Bright=1
else
	print "No Features!! (bright/contrast/saturation etc.)"
endif

I had pain in brain reading the v4l2 C-code stuff :)


Best regards,

Ron_1st

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