[libextractor] RE: libextractor_exiv2 weirdness with Canon raw cr2 files

[David Lasker]

I was just looking for exif keywords, so with Christian's change to
libextractor to link libexiv2 from the system, I have everything I want.

I would recommend against trying to parse the cr2 file yourself. This is a
never-ending quest, as Canon keeps tweaking the file format as new camera
models are introduced. It is better to leave this to specialty libraries
such as libraw.

Thanks for the help!

Dave

-----Original Message-----
From: Nils Durner [mailto:address@hidden 
Sent: Sunday, April 12, 2009 4:09 AM
To: David Lasker
Cc: address@hidden; address@hidden
Subject: Re: libextractor_exiv2 weirdness with Canon raw cr2 files

Hi Dave,

is the data you get from libexiv2 enough or would it be better to read
additional information from the CR2 data structures[0]?
Especially, I'd like to have thumbnails extracted, maybe libraw[1] could
help here.

Best,

Nils


[0]   http://lclevy.free.fr/cr2/
       http://wildtramper.com/sw/cr2/cr2.html
[1]    http://www.libraw.org/