# Need to generate the cache; read in the image
my $magick = new Image::Magick;
my $info = Image::ExifTool::ImageInfo($fname);
-
- # NEF files aren't autodetected
- $fname = "NEF:$fname" if ($filename =~ /\.nef$/i);
+ my $err;
+
+ # ImageMagick can handle NEF files, but it does it by calling dcraw as a delegate.
+ # The delegate support is rather broken and causes very odd stuff to happen when
+ # more than one thread does this at the same time. Thus, we simply do it ourselves.
+ if ($filename =~ /\.nef$/) {
+ # this would suffice if ImageMagick gets to fix their handling
+ # $fname = "NEF:$fname";
+
+ open DCRAW, "-|", "dcraw", "-w", "-c", $fname
+ or error("dcraw: $!");
+ $err = $magick->Read(file => \*DCRAW);
+ close(DCRAW);
+ } else {
+ $err = $magick->Read($fname);
+ }
- my $err = $magick->Read($fname);
if ($err) {
$r->log->warn("$fname: $err");
$err =~ /(\d+)/;