使用 curl 和 api v3 在 Youtube 上上传视频

我将使用 Youtube API v3 和 PHP 中的 curl 上传视频，如下所述:https://developers.google.com/youtube/v3/docs/videos/insert

I would upload a video using the Youtube API v3 with curl in PHP, as described here: https://developers.google.com/youtube/v3/docs/videos/insert

我有这个功能

function uploadVideo($file, $title, $description, $tags, $categoryId, $privacy)
{
    $token = getToken(); // Tested function to retrieve the correct AuthToken

    $video->snippet['title']         = $title;
    $video->snippet['description']   = $description;
    $video->snippet['categoryId']    = $categoryId;
    $video->snippet['tags']          = $tags; // array
    $video->snippet['privacyStatus'] = $privacy;
    $res = json_encode($video);

    $parms = array(
        'part'  => 'snippet',
        'file'  => '@'.$_SERVER['DOCUMENT_ROOT'].'/complete/path/to/'.$file
        'video' => $res
    );

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, 'https://www.googleapis.com/upload/youtube/v3/videos');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $parms);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Bearer '.$token['access_token']));
    $return = json_decode(curl_exec($ch));
    curl_close($ch);

    return $return;
}

但它返回这个

stdClass Object
(
    [error] => stdClass Object
        (
            [errors] => Array
                (
                    [0] => stdClass Object
                        (
                            [domain] => global
                            [reason] => badContent
                            [message] => Unsupported content with type: application/octet-stream
                        )

                )

            [code] => 400
            [message] => Unsupported content with type: application/octet-stream
        )

)

文件是 MP4.

有人可以帮忙吗?