Re: [Libexif-devel] MakerNote support

[Rod W. <lis...@rw...>]

I agree with your points in the previous message about not re-using the I=
FD
structure for MakerNotes.

I'd like to have a common MakerNote data structure format (like what you =
had
in the previous message), and then have each maker-specific piece of code
conform to that format (even if they have to create dummy tags).  Then th=
e
top-level code can operate on makernotes without having to care what
specific maker it came from.

The code in .../olympus/... has data structures with "Olympus" in the nam=
es
of the data structures (and similarly for each of the other maker modules=
).
I want to have a common makernote data structure which each of the
maker-specific modules use (and do whatever is required to insert the
makernote information into the common data structure.  The common code wo=
uld
have pretty much an identical interface to all the other ExifContent stuf=
f,
so it can be loaded, modified and saved just like anything else.

I'll sort out what I mean in the code, and then send an example.

-- Rod Whitby


----- Original Message -----
From: "Lutz M=FCller" <lu...@us...>
To: <lib...@li...>
Sent: Friday, November 08, 2002 6:57 PM
Subject: Re: [Libexif-devel] MakerNote support


On Fri, 2002-11-08 at 09:04, Lutz M=FCller wrote:
> You can always
> set up new objects like exif-mn-[entry,content,tag] (mn =3D MakerNote)
> inheriting from the exif-equivalents.

(Me looking at the source...)

I think I have already done something like that in
libexif/libexif/olympus. Could you give me your opinion on that?

Lutz
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