[sane-devel] Additional frame types in Sane 1

[René Rebe]

Hi Allan,
hi all,

On Sunday 27 May 2007 13:38:31 Gerhard Jaeger wrote:
> On Freitag, 25. Mai 2007, m. allan noah wrote:
> [SNIPSNAP]
> > yes, this will require that a front-end would have to be updated to
> > understand this type of data. I can extend scanimage and scanadf
> > (though i probably wont support all the possible conversions). it will
> > also require (in the case of compression) that the front-end be able
> > to deal with variable length data.
> >
> > comments, requests, flames? :)
> >
> Well extending SANE1 will certainly start the new discussion
> about finishing SANE2 standard before starting - ACK ;)
> But as we did not move forward and scanner support for Linux
> is more or less stopped in its development, I vote for
> extending SANE1. 
> 
> As long as it won't hurt the API and the flow-control, introducing
> more frametypes should be no problem...

Nice to see no big flamewar about the simple frametype addition :-)!

As we already discuseed in private +1 from me as well.

When we are at it please let's add the INFRARED frame type
I need for the latest (Avision OEM) Konica Minolta devices that
deliver infra-red data for dust & co removal.

On  2007-05-16 17:40 I proposed this:

> > --- sane.h      2007-05-16 02:34:53.000000000 +0000
> > +++ sane.h.new  2007-05-16 15:28:52.000000000 +0000
> > @@ -169,7 +169,10 @@
> >      SANE_FRAME_RGB,            /* pixel-interleaved red/green/blue bands */
> >      SANE_FRAME_RED,            /* red band only */
> >      SANE_FRAME_GREEN,          /* green band only */
> > -    SANE_FRAME_BLUE            /* blue band only */
> > +    SANE_FRAME_BLUE,           /* blue band only */
> > +    SANE_FRAME_INFRARED,       /* infra-red band */
> > +    SANE_FRAME_RGBI,           /* pixel-interleaved red/green/blue/infra-red */
> > +    SANE_FRAME_JPEG            /* Joint Photographic Experts Group's JPEG */
> >    }
> >  SANE_Frame;

In the meantime I noticed the device can send Gray+IR as well which
would mean SANE_FRAME_GRAYI, as well.

Yours,

-- 
  René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
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