<?php
use MagentoFrameworkAppBootstrap;
include('app/bootstrap.php');

// add bootstrap
$bootstraps = Bootstrap::create(BP, $_SERVER);
$object_Manager = $bootstraps->getObjectManager();

$app_state = $object_Manager->get('MagentoFrameworkAppState');
$app_state->setAreaCode('frontend');

$set_product = $object_Manager->create('MagentoCatalogModelProduct');

try{
     $set_product->setWebsiteIds(array(1));
     $set_product->setVideoUrl('youtub.com/magento');
     $set_product->save();
}
catch (Exception $e) {
    echo $e->getMessage();
}