Here is the code how to resize youtube video embed code, even this code will work to non-youtube embed videos…..
<?php
$embed = ‘‘;
//$alt = preg_match_all(‘/(width|height)=(“[^"]*”)/i’, $embed, $matches);
$embed = preg_replace(‘/(width)=(“[^"]*”)/i’, ‘width=”200″‘, $embed);
$embed = preg_replace(‘/(height)=(“[^"]*”)/i’, ‘height=”200″‘, $embed);
echo $embed;
?>
Output here:
http://www.youtube.com/v/jWDmG3JnNLE&hl=en_US&fs=1&