WordPress Version: 6.3
/**
* Image preview ratio. Internal use only.
*
* @since 2.9.0
*
* @ignore
* @param int $w Image width in pixels.
* @param int $h Image height in pixels.
* @return float|int Image preview ratio.
*/
function _image_get_preview_ratio($w, $h)
{
$max = max($w, $h);
return ($max > 600) ? 600 / $max : 1;
}