Changeset 57524 for trunk/src/wp-includes/media.php

Timestamp:

02/02/2024 05:46:50 PM (3 years ago)

Author:

adamsilverstein

Message:

Media: enable AVIF support.

Add support for uploading, editing and saving AVIF images when supported by the server.

Add 'image/avif' to supported mime types. Correctly identify AVIF images and sizes even when PHP doesn't support AVIF. Resize uploaded AVIF files (when supported) and use for front end markup.

Props adamsilverstein, lukefiretoss, ayeshrajans, navjotjsingh, Tyrannous, jb510, gregbenz, nickpagz, JavierCasares, mukesh27, yguyon, swissspidy.
Fixes #51228.

File:

• trunk/src/wp-includes/media.php (modified) (5 diffs)

trunk/src/wp-includes/media.php

@@ -4101 +4101 @@
         require_once ABSPATH . WPINC . '/class-wp-image-editor-gd.php';
         require_once ABSPATH . WPINC . '/class-wp-image-editor-imagick.php';
+        require_once ABSPATH . WPINC . '/class-avif-info.php';
         /**
          * Filters the list of image editing library classes.
@@ -4203 +4204 @@
         if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/webp' ) ) ) {
                 $defaults['webp_upload_error'] = true;
+        }
+
+        // Check if AVIF images can be edited.
+        if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/avif' ) ) ) {
+                $defaults['avif_upload_error'] = true;
         }
 
@@ -5481 +5487 @@
  * @since 5.7.0
  * @since 5.8.0 Added support for WebP images.
+ * @since 6.5.0 Added support for AVIF images.
  *
  * @param string $filename   The file path.
@@ -5513 +5520 @@
         }
 
-        if ( false !== $info ) {
+        if (
+                ! empty( $info ) &&
+                // Some PHP versions return 0x0 sizes from `getimagesize` for unrecognized image formats, including AVIFs.
+                ! ( empty( $info[0] ) && empty( $info[1] ) )
+        ) {
                 return $info;
         }
@@ -5542 +5553 @@
         }
 
+        // For PHP versions that don't support AVIF images, extract the image size info from the file headers.
+        if ( 'image/avif' === wp_get_image_mime( $filename ) ) {
+                $avif_info = wp_get_avif_info( $filename );
+
+                $width  = $avif_info['width'];
+                $height = $avif_info['height'];
+
+                // Mimic the native return format.
+                if ( $width && $height ) {
+                        return array(
+                                $width,
+                                $height,
+                                IMAGETYPE_AVIF,
+                                sprintf(
+                                        'width="%d" height="%d"',
+                                        $width,
+                                        $height
+                                ),
+                                'mime' => 'image/avif',
+                        );
+                }
+        }
+
         // The image could not be parsed.
         return false;
+}
+
+/**
+ * Extracts meta information about an AVIF file: width, height, bit depth, and number of channels.
+ *
+ * @since 6.5.0
+ *
+ * @param string $filename Path to an AVIF file.
+ * @return array {
+ *    An array of AVIF image information.
+ *
+ *    @type int|false $width        Image width on success, false on failure.
+ *    @type int|false $height       Image height on success, false on failure.
+ *    @type int|false $bit_depth    Image bit depth on success, false on failure.
+ *    @type int|false $num_channels Image number of channels on success, false on failure.
+ * }
+ */
+function wp_get_avif_info( $filename ) {
+        $results = array(
+                'width'        => false,
+                'height'       => false,
+                'bit_depth'    => false,
+                'num_channels' => false,
+        );
+
+        if ( 'image/avif' !== wp_get_image_mime( $filename ) ) {
+                return $results;
+        }
+
+        // Parse the file using libavifinfo's PHP implementation.
+        require_once ABSPATH . WPINC . '/class-avif-info.php';
+
+        $handle = fopen( $filename, 'rb' );
+        if ( $handle ) {
+                $parser  = new Avifinfo\Parser( $handle );
+                $success = $parser->parse_ftyp() && $parser->parse_file();
+                fclose( $handle );
+                if ( $success ) {
+                        $results = $parser->features->primary_item_features;
+                }
+        }
+        return $results;
 }