/**
* Parse mp4chaps string into list of php maps.
*
* @param string $chapters_string
*/
public static function from_mp4chaps($chapters_string)
{
$chapters = new self();
$chapters_string = trim($chapters_string);
foreach (preg_split("/((\r?\n)|(\r\n?))/", $chapters_string) as $line) {
$valid = preg_match('/^((?:\\d+\\:[0-5]\\d\\:[0-5]\\d(?:\\.\\d+)?)|\\d+(?:\\.\\d+)?)(.*)$/', trim($line), $matches);
if (!$valid) {
continue;
}
$start = trim($matches[1]);
$title = trim($matches[2]);
$link = '';
$title = preg_replace_callback('/\\s?<[^>]+>\\s?/', function ($matches) use(&$link) {
$link = trim($matches[0], ' < >');
return ' ';
}, $title);
$chapters->add_chapter(array('start' => $start, 'title' => $title, 'link' => $link));
}
return $chapters;
}
