Files without Exif data aren't handled correctly

[lizmat]

The example programs, and all other code I tried, failed with:

Cannot look up attributes in a Image::Libexif::Raw::ExifData type object. Did you forget a '.new'?
  in method ifd at ...site/sources/5CB626BF4325F87DF784D52D1212BBF6717E278F (Image::Libexif::Raw) line 32
  in method info at .../site/sources/8AD5D6371908A829FC5D323173190AD2C75517DC (Image::Libexif) line 173

Is there something I'm missing?

[frithnanth]

That's odd: line 32 of Image::Libexif::Raw::ExifData is the declaration of a CStruct. The only thing that might seem different from the usual is that that class has an "embedded" attribute declared with HAS instead of has, but it sounds strange that Linux and MacOS behaved differently on that.

Maybe you have a different version of libexif? Here on a Linux Debian installation I have libexif v0.6.24 and everything works fine.

[lizmat]

The version of libexif is the same.

I also tried this on a MacOS with an Intel processor: there it works. So it appears to be an Apple Silicon related issue :-(

[frithnanth]

A hardware problem? :-o That's very unfortunate!
Might it be a problem related to NativeCall on that specific platform? (not that I'm able to help in that case…)

[lizmat]

Possibly: I'll investigate further after the weekly.

Reason for me is to be able to add searching in EXIF information to App::Rak.

[lizmat]

Before I can add exif searching to App::Rak, I would need to add possibly quite a few convenience methods. Also I noticed that quite a few tagnames are missing, at least from the few files I tried (e.g. 0x0003/04/05/06/10/17/1f).

So my questions: would you prefer me to create a wrapper module (e.g. Image::Info) with Image::Libexif as a dependency. Or would you rather I add these methods to Image::Libexif itself?

Also: would you consider me taking over support / development of this module? ( my fingers are itching :-)

[frithnanth]

It works for me both ways, with a slight preference for a wrapper module.
A wrapper module might add features not covered by libexif, add other dependencies, or switch to a different library altogether transparently towards dependent modules.

[lizmat]

Ok, I will target an Image::Info module then :-)