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

Timestamp:

02/02/2024 05:46:50 PM (2 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/functions.php (modified) (5 diffs)

trunk/src/wp-includes/functions.php

@@ -3118 +3118 @@
                     'image/tiff' => 'tif',
                     'image/webp' => 'webp',
+                    'image/avif' => 'avif',
                 )
             );
@@ -3296 +3297 @@
  * @since 4.7.1
  * @since 5.8.0 Added support for WebP images.
+ * @since 6.5.0 Added support for AVIF images.
  *
  * @param string $file Full path to the file.
@@ -3350 +3352 @@
             $mime = 'image/webp';
         }
+
+        /**
+         * Add AVIF fallback detection when image library doesn't support AVIF.
+         *
+         * Detection based on section 4.3.1 File-type box definition of the ISO/IEC 14496-12
+         * specification and the AV1-AVIF spec, see https://aomediacodec.github.io/av1-avif/v1.1.0.html#brands.
+         */
+
+         // Divide the header string into 4 byte groups.
+        $magic = str_split( $magic, 8 );
+
+        if (
+            isset( $magic[1] ) &&
+            isset( $magic[2] ) &&
+            'ftyp' === hex2bin( $magic[1] ) &&
+            ( 'avif' === hex2bin( $magic[2] ) || 'avis' === hex2bin( $magic[2] ) )
+        ) {
+            $mime = 'image/avif';
+        }
     } catch ( Exception $e ) {
         $mime = false;
@@ -3389 +3410 @@
             'tiff|tif'                     => 'image/tiff',
             'webp'                         => 'image/webp',
+            'avif'                         => 'image/avif',
             'ico'                          => 'image/x-icon',
             'heic'                         => 'image/heic',
@@ -3510 +3532 @@
         'ext2type',
         array(
-            'image'       => array( 'jpg', 'jpeg', 'jpe', 'gif', 'png', 'bmp', 'tif', 'tiff', 'ico', 'heic', 'webp' ),
+            'image'       => array( 'jpg', 'jpeg', 'jpe', 'gif', 'png', 'bmp', 'tif', 'tiff', 'ico', 'heic', 'webp', 'avif' ),
             'audio'       => array( 'aac', 'ac3', 'aif', 'aiff', 'flac', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ),
             'video'       => array( '3g2', '3gp', '3gpp', 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ),