Wrapper class for AtomicParsley for setting iTunes style meta data on MPEG-4 files via PHP.

AtomicParsley.php

<?php

/**
 * Wrapper class for AtomicParsley for setting iTunes style meta data on MPEG-4 files.
 *
 * Dependencies:
 *   - Bunsen <http://github.com/jnrbsn/bunsen>
 *   - AtomicParsley <http://atomicparsley.sourceforge.net/>
 */
class AtomicParsley
{

    /**
     * Absolute path to the AtomicParsley binary.
     */
    public static $binPath = '/usr/local/bin/AtomicParsley';


    /**
     * Set some metadata.
     *
     * @param string $file The absolute path to the MPEG-4 file.
     * @param array  $tags An associative array of keys and values of tags to set.
     *
     * @return string The command that was run.
     */
    public static function set($file, array $tags=array())
    {
        $command = self::$binPath.' '.escapeshellarg($file).' --overWrite';

        foreach ($tags as $option => $value) {
            if ($value === true) {
                $command .= ' --'.$option;
            } else if (is_int($value)) {
                $command .= ' --'.$option.' '.$value;
            } else {
                $command .= ' --'.$option.' '.escapeshellarg($value);
            }
        }

        $bunsen = new Bunsen;

        if ($bunsen->exec($command) !== 0) {
            trigger_error($bunsen->stderr(), E_USER_WARNING);
            return false;
        }

        if (isset($tags['artwork'])) {
            $tempfiles = preg_replace('/^(.*)(\.[a-z]{3,4})$/', '$1-resized-*$2', $tags['artwork']);
            if (strpos($tempfiles, dirname($tags['artwork'])) === 0) {
                foreach (glob($tempfiles) as $tempfile) {
                    unlink($tempfile);
                }
            }
        }

        return $command;

    }//end set()


}//end class