How to get video list? http://usher.twitch.tv/select/ doesn't work any more

API
5

I would also want to know the new api call bcs thi is my old code and it dosent work anymore.

$link = "http://api.twitch.tv/api/channels/".$username."/access_token";
    $cont = json_decode(file_get_contents($link));
    $hold = $cont;

    $sig = $hold->{"sig"};
    $token = $hold->{"token"};

    $url = 'https://api.twitch.tv/select/'.$username.'.json?nauthsig='.$sig.';nauth='.$token.'&allow_source=true';
    $stream_url = json_decode(file_get_contents($url));


    echo '<pre>';
    var_dump($stream_url);
    echo '</pre>';