Changeset 13244 for trunk/wp-admin/includes/image.php

Timestamp:

02/20/2010 09:17:34 AM (16 years ago)

Author:

nacin

Message:

Improved IPTC and EXIF handling. Drag a wider net and also try to avoid numeric attachment slugs where possible. Props miqrogroove. See #11417

File:

• trunk/wp-admin/includes/image.php (modified) (2 diffs)

trunk/wp-admin/includes/image.php

@@ -253 +253 @@
     if ( is_callable('iptcparse') ) {
         getimagesize($file, $info);
+
         if ( !empty($info['APP13']) ) {
             $iptc = iptcparse($info['APP13']);
+
+            if ( ! empty($iptc['2#105'][0] ) ) // headline, "A brief synopsis of the caption."
+                $meta['title'] = utf8_encode( trim( $iptc['2#105'][0] ) );
+            elseif ( !empty($iptc['2#005'][0]) ) // title, "Many use the Title field to store the filename of the image, though the field may be used in many ways."
+                $meta['title'] = utf8_encode( trim( $iptc['2#005'][0] ) );
+
+            if ( !empty( $iptc['2#120'][0] ) ) { // description / legacy caption
+                $caption = utf8_encode( trim( $iptc['2#120'][0] ) );
+                if ( empty( $meta['title'] ) ) {
+                    // Assume the title is stored in 2:120 if it's short.
+                    if ( strlen( $caption ) < 80 )
+                        $meta['title'] = $caption;
+                    else
+                        $meta['caption'] = $caption;
+                } elseif ( $caption != $meta['title'] ) {
+                    $meta['caption'] = $caption;
+                }
+            }
+
             if ( !empty($iptc['2#110'][0]) ) // credit
                 $meta['credit'] = utf8_encode(trim($iptc['2#110'][0]));
-            elseif ( !empty($iptc['2#080'][0]) ) // byline
+            elseif ( !empty($iptc['2#080'][0]) ) // creator / legacy byline
                 $meta['credit'] = utf8_encode(trim($iptc['2#080'][0]));
+
             if ( !empty($iptc['2#055'][0]) and !empty($iptc['2#060'][0]) ) // created date and time
                 $meta['created_timestamp'] = strtotime($iptc['2#055'][0] . ' ' . $iptc['2#060'][0]);
-            if ( !empty($iptc['2#120'][0]) ) // caption
-                $meta['caption'] = utf8_encode(trim($iptc['2#120'][0]));
+
             if ( !empty($iptc['2#116'][0]) ) // copyright
                 $meta['copyright'] = utf8_encode(trim($iptc['2#116'][0]));
-            if ( !empty($iptc['2#005'][0]) ) // title
-                $meta['title'] = utf8_encode(trim($iptc['2#005'][0]));
          }
     }
@@ -273 +291 @@
     if ( is_callable('exif_read_data') && in_array($sourceImageType, apply_filters('wp_read_image_metadata_types', array(IMAGETYPE_JPEG, IMAGETYPE_TIFF_II, IMAGETYPE_TIFF_MM)) ) ) {
         $exif = @exif_read_data( $file );
+
+        if ( !empty( $exif['Title'] ) )
+            $meta['title'] = utf8_encode( trim( $exif['Title'] ) );
+
+        if ( ! empty( $exif['ImageDescription'] ) ) {
+            if ( empty($meta['title']) && strlen( $exif['ImageDescription'] ) < 80 ) {
+                // Assume the title is stored in ImageDescription
+                $meta['title'] = utf8_encode( trim( $exif['ImageDescription'] ) );
+                if ( ! empty( $exif['COMPUTED']['UserComment'] ) && trim( $exif['COMPUTED']['UserComment'] ) != $meta['title'] )
+                    $meta['caption'] = utf8_encode( trim( $exif['COMPUTED']['UserComment'] ) );
+            } elseif ( trim( $exif['ImageDescription'] ) != $meta['title'] ) {
+                $meta['caption'] = utf8_encode( trim( $exif['ImageDescription'] ) );
+            }
+        } elseif ( ! empty( $exif['Comments'] ) && trim( $exif['Comments'] ) != $meta['title'] ) {
+            $meta['caption'] = utf8_encode( trim( $exif['Comments'] ) );
+        }
+
+        if ( ! empty( $exif['Artist'] ) )
+            $meta['credit'] = utf8_encode( trim( $exif['Artist'] ) );
+        elseif ( ! empty($exif['Author'] ) )
+            $meta['credit'] = utf8_encode( trim( $exif['Author'] ) );
+
+        if ( ! empty( $exif['Copyright'] ) )
+            $meta['copyright'] = utf8_encode( trim( $exif['Copyright'] ) );
         if (!empty($exif['FNumber']))
             $meta['aperture'] = round( wp_exif_frac2dec( $exif['FNumber'] ), 2 );