wp-includes/ID3/module.audio.flac.php:439$blocktypeintstring public static function metaBlockTypeLookup($blocktype) { static $lookup = array( 0 => 'STREAMINFO', 1 => 'PADDING', 2 => 'APPLICATION', 3 => 'SEEKTABLE', 4 => 'VORBIS_COMMENT', 5 => 'CUESHEET', 6 => 'PICTURE', ); return (isset($lookup[$blocktype]) ? $lookup[$blocktype] : 'reserved'); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ID3/module.audio.flac.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.