get log message of a live stream from VLC web Plugin embed in web application C#

I'm trying to get the state of a live stream in VLC Web plugin using vlc.playlist.isPlaying. But, it is always returning true even if I stopped the live stream. How could I get the real state of the live stream?

Beside, I want to get the number of displayed frames when stream is playing. How could I do that?

Thanks.