libvlc Audio level visualization

[dolfin]

Hello!

I got a task to visualize a sound levels using libvlc. I decided to use libvlc_audio_play_cb function for it. But I can't find a way to use it properly. I found no example in manuals( So, for now I need to get sound level in each channel using libvlc_audio_play_cb. Is it possible to do it? And after I get it I still need the sound to be play.
May be there is better way to visualize audio levels?

Many thanks in advance!