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[Caml-list] EXIF reader

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Sebastien Ferre

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Apr 4, 2008, 12:20:33 PM4/4/08
to ocaml
Hi,

I would like to read EXIF metadata from JPG files.
I already know the C library libexif, and the
program 'jhead' that displays those metadata.

Has anybody developed something equivalent in OCaml ?
Or an interface to the C library ? I only need basic
functionality: to get the value for each EXIF tag.

Thanks,
Sebastien

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Sylvain Le Gall

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Apr 4, 2008, 12:35:21 PM4/4/08
to caml...@inria.fr
On 04-04-2008, Sebastien Ferre <Sebasti...@irisa.fr> wrote:
> Hi,
>
> I would like to read EXIF metadata from JPG files.
> I already know the C library libexif, and the
> program 'jhead' that displays those metadata.
>
> Has anybody developed something equivalent in OCaml ?
> Or an interface to the C library ? I only need basic
> functionality: to get the value for each EXIF tag.
>

Once ago, i write this wrapper, using camlidl. I have still the source,
but i am not sure it still compiles. Basically, this is a binding to
libexif...

Want to have the source?

Regards,
Sylvain Le Gall

Sebastien Ferre

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Apr 4, 2008, 1:14:25 PM4/4/08
to Sylvain Le Gall, caml...@inria.fr

Sylvain Le Gall wrote:
> On 04-04-2008, Sebastien Ferre <Sebasti...@irisa.fr> wrote:
>> Hi,
>>
>> I would like to read EXIF metadata from JPG files.
>> I already know the C library libexif, and the
>> program 'jhead' that displays those metadata.
>>
>> Has anybody developed something equivalent in OCaml ?
>> Or an interface to the C library ? I only need basic
>> functionality: to get the value for each EXIF tag.
>>
>
> Once ago, i write this wrapper, using camlidl. I have still the source,
> but i am not sure it still compiles. Basically, this is a binding to
> libexif...
>
> Want to have the source?

yes, please.
Even if incomplete, it would be a good start.

Sebastien

Florent Monnier

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Apr 5, 2008, 2:35:34 PM4/5/08
to caml...@yquem.inria.fr
> >> Hi,
> >>
> >> I would like to read EXIF metadata from JPG files.
> >> I already know the C library libexif, and the
> >> program 'jhead' that displays those metadata.
> >>
> >> Has anybody developed something equivalent in OCaml ?
> >> Or an interface to the C library ? I only need basic
> >> functionality: to get the value for each EXIF tag.
> >
> > Once ago, i write this wrapper, using camlidl. I have still the source,
> > but i am not sure it still compiles. Basically, this is a binding to
> > libexif...
> >
> > Want to have the source?
>
> yes, please.
> Even if incomplete, it would be a good start.

I started such a wrapper too, but didn't complete it thinking noone would be
interested by it.

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