src/Upyun/Upyun.php
public function m3u8Concat($files, $saveAs)
    {
        $p = new Api\SyncVideo($this->config);
        return $p->process([
            'm3u8s' => $files,
            'save_as' => $saveAs,
        ], '/m3u8er/concat');
    }
public function m3u8Concat($files, $saveAs)
    {
        $p = new Api\SyncVideo($this->config);
        return $p->process([
            'm3u8s' => $files,
            'save_as' => $saveAs,
        ], '/m3u8er/concat');
    }
多个 m3u8 文件拼接
@param array $files  保存在又拍云云存储中的多个 m3u8 文件路径
@param string $saveAs 拼接生成的新 m3u8 文件保存路径

@return array 见 [m3u8 拼接 - 响应](http://docs.upyun.com/cloud/sync_video/#_3)