wp-includes/ID3/getid3.lib.php:150$fractionstringfloat public static function DecimalizeFraction($fraction) { list($numerator, $denominator) = explode('/', $fraction); return (int) $numerator / ($denominator ? $denominator : 1); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/ID3/getid3.lib.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.