Changeset 23766 for trunk/wp-admin/includes/image.php

Timestamp:

03/21/2013 04:55:42 AM (12 years ago)

Author:

markjaquith

Message:

Add functions for generating metadata for video and audio, using the
ID3 library. Also allows themes/plugins to add thumbnail support
to these media types. Think stuff like album art, movie covers, and
video freeze-frames.

props wonderboymusic. fixes #23673

File:

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

trunk/wp-admin/includes/image.php

@@ -74 +74 @@
 
     $metadata = array();
+    $support = false;
     if ( preg_match('!^image/!', get_post_mime_type( $attachment )) && file_is_displayable_image($file) ) {
         $imagesize = getimagesize( $file );
@@ -118 +119 @@
             $metadata['image_meta'] = $image_meta;
 
-    }
+    } elseif ( preg_match( '#^video/#', get_post_mime_type( $attachment ) ) ) {
+        $metadata = wp_read_video_metadata( $file );
+        $support = current_theme_supports( 'post-thumbnails', 'attachment:video' ) && post_type_supports( 'attachment:video', 'thumbnail' );
+    } elseif ( preg_match( '#^audio/#', get_post_mime_type( $attachment ) ) ) {
+        $metadata = wp_read_audio_metadata( $file );
+        $support = current_theme_supports( 'post-thumbnails', 'attachment:audio' ) && post_type_supports( 'attachment:audio', 'thumbnail' );
+    }
+
+    if ( $support && ! empty( $metadata['image']['data'] ) ) {
+        $ext = '.jpg';
+        switch ( $metadata['image']['mime'] ) {
+        case 'image/gif':
+            $ext = '.gif';
+            break;
+        case 'image/png':
+            $ext = '.png';
+            break;
+        }
+        $basename = str_replace( '.', '-', basename( $file ) ) . '-image' . $ext;
+        $uploaded = wp_upload_bits( $basename, '', $metadata['image']['data'] );
+        if ( false === $uploaded['error'] ) {
+            $attachment = array(
+                'post_mime_type' => $metadata['image']['mime'],
+                'post_type' => 'attachment',
+                'post_content' => '',
+            );
+            $sub_attachment_id = wp_insert_attachment( $attachment, $uploaded['file'] );
+            $attach_data = wp_generate_attachment_metadata( $sub_attachment_id, $uploaded['file'] );
+            wp_update_attachment_metadata( $sub_attachment_id, $attach_data );
+            update_post_meta( $attachment_id, '_thumbnail_id', $sub_attachment_id );
+        }
+    }
+    // remove the blob of binary data from the array
+    unset( $metadata['image']['data'] );
 
     return apply_filters( 'wp_generate_attachment_metadata', $metadata, $attachment_id );