RVOLA

WordPress has changed the media page, removing the two fields to define the location and the sub-field of media. 
There exists a constant wp-config.php, but it does not include sub-domains. 
Once activated, the plugin will add two values ​​in the database, you modify later. 
The plugin is not retroactive for images already uploaded. 
Follow the <a href="https://wordpress.org/plugins/wp-original-media-path/installation" rel="ugc">installation instructions</a> to migrate your old images.
<ul>
<li>This extension is not compatible with WordPress multisite.</li>
<li>Thank you to try to find the solution by yourself or on the forum.</li>
<li>The author of the plugin is no after-sales service.</li>
<li>Most of the issues have already been addressed.</li>
</ul>
<a href="https://github.com/rvola/wp-original-media-path" rel="nofollow ugc">GitHub</a> | <a href="https://www.paypal.me/rvola" rel="nofollow ugc">Donate</a>

WP Original Media Path

Sucesso!

Change the location for the uploads folder for WordPress

Grégory Viguier

WordPress 3.5 removes the setting fields to change the media upload path and url. This plugin enables them again. Note that as long as your fields are not empty, you can disable this plugin.

Upload Url and Path Enabler

Get the media upload path and url setting fields back in WP 3.5+.

WP Original Media Path vs Upload Url and Path Enabler