Don’t have access to post meta in save_post action

So what I’ve noticed is that if I check for a meta value in my save_post function, it comes as blank, meaning the meta value hasn’t actually been entered into the post. Looking at this code for example,

function order_mirror_create($post_id) {

    global $post;

    if($post->ID == ''){
            $pid = $post_id;
    } else {
            $pid = $post->ID;
    }

    $videohost = get_post_meta($pid, 'video_provider', true);


    if ($videohost == "UploadAnime") {

        add_post_meta($pid, 'video_display_order', 1, true);

    } else {

        add_post_meta($pid, 'video_display_order', $videohost, true);

    }

}

$videohost is actually blank, so get_post_meta($pid, 'video_provider', true) does not return the actual value of that meta field because it hasn’t been created yet.

So in the code above, the else is always the one that runs, since $videohost is blank. How can I fix this? What action should I use that would run in such a manner that the post meta have already been added to the post.