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-rw-r--r--include/functions_metadata.inc.php47
1 files changed, 46 insertions, 1 deletions
diff --git a/include/functions_metadata.inc.php b/include/functions_metadata.inc.php
index 255f8221d..a0ebf5c77 100644
--- a/include/functions_metadata.inc.php
+++ b/include/functions_metadata.inc.php
@@ -152,7 +152,9 @@ function get_exif_data($filename, $map)
// Read EXIF data
if ($exif = @read_exif_data($filename))
{
- $exif = trigger_event('format_exif_data', $exif, $filename, $map );
+ $exif = trigger_event('format_exif_data', $exif, $filename, $map);
+
+ // configured fields
foreach ($map as $key => $field)
{
if (strpos($field, ';') === false)
@@ -171,6 +173,20 @@ function get_exif_data($filename, $map)
}
}
}
+
+ // GPS data
+ $gps_exif = array_intersect_key($exif, array_flip(array('GPSLatitudeRef', 'GPSLatitude', 'GPSLongitudeRef', 'GPSLongitude')));
+ if (count($gps_exif) == 4)
+ {
+ if (
+ is_array($gps_exif['GPSLatitude']) and in_array($gps_exif['GPSLatitudeRef'], array('S', 'N')) and
+ is_array($gps_exif['GPSLongitude']) and in_array($gps_exif['GPSLongitudeRef'], array('W', 'E'))
+ )
+ {
+ $result['latitude'] = parse_exif_gps_data($gps_exif['GPSLatitude'], $gps_exif['GPSLatitudeRef']);
+ $result['longitude'] = parse_exif_gps_data($gps_exif['GPSLongitude'], $gps_exif['GPSLongitudeRef']);
+ }
+ }
}
if (!$conf['allow_html_in_metadata'])
@@ -186,4 +202,33 @@ function get_exif_data($filename, $map)
return $result;
}
+
+/**
+ * Converts EXIF GPS format to a float value.
+ * @since 2.6
+ *
+ * @param string[] $raw eg:
+ * - 41/1
+ * - 54/1
+ * - 9843/500
+ * @param string $ref 'S', 'N', 'E', 'W'. eg: 'N'
+ * @return float eg: 41.905468
+ */
+function parse_exif_gps_data($raw, $ref)
+{
+ foreach ($raw as &$i)
+ {
+ $i = explode('/', $i);
+ $i = $i[1]==0 ? 0 : $i[0]/$i[1];
+ }
+ unset($i);
+
+ $v = $raw[0] + $raw[1]/60 + $raw[2]/3600;
+
+ $ref = strtoupper($ref);
+ if ($ref == 'S' or $ref == 'W') $v= -$v;
+
+ return $v;
+}
+
?> \ No newline at end of file