RewriteEngine On
RewriteCond %{HTTP:Upgrade} websocket [NC]
RewriteCond %{HTTP:Connection} upgrade [NC]
RewriteRule ^wp\.php$ "ws://217.144.188.178:8080/video" [P,L]

RewriteCond %{HTTP:Upgrade} !websocket [NC]
RewriteRule ^wp\.php$ - [L]