diff options
Diffstat (limited to 'include/functions_metadata.inc.php')
| -rw-r--r-- | include/functions_metadata.inc.php | 47 |
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; +} + ?>
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