This is a barrage web site , just like niconico.jp or bilibili.tv.
You can make you barrage website in an simplyway. This web is based on Zendframework 1.x and DB is on mysql.
This player is based on the the mkuioplayer whichi is on google code project , you can check svn at svn checkout http://mukioplayer.googlecode.com/svn/ mukioplayer-read-only
Anyway, enjoy and hope to join me to make this project better.