Capture Demo Doesn't work

[xiuxiu]

Hi,

I am trying to run the capture demo with mabook webcam.

It doesn't work and stuck somewhere. Attached the console output below.
Tonys-MacBook-Pro:robot windlx$ ruby artoo_opencv.rb
I, [2016-01-17T15:20:49.991638 #46332] INFO -- : Registering connection 'capture'...
I, [2016-01-17T15:20:49.991748 #46332] INFO -- : Registering device 'capture'...
I, [2016-01-17T15:20:49.991794 #46332] INFO -- : Registering connection 'window'...
I, [2016-01-17T15:20:49.991841 #46332] INFO -- : Registering device 'window'...
I, [2016-01-17T15:20:49.991881 #46332] INFO -- : Preparing work...
I, [2016-01-17T15:20:49.992786 #46332] INFO -- : Initializing artoo::connection capture...
I, [2016-01-17T15:20:49.995857 #46332] INFO -- : Initializing artoo::connection window...
I, [2016-01-17T15:20:50.004278 #46332] INFO -- : Initializing artoo::device capture...
I, [2016-01-17T15:20:50.007966 #46332] INFO -- : Initializing artoo::device window...
I, [2016-01-17T15:20:50.112182 #46332] INFO -- : Starting work...
I, [2016-01-17T15:20:50.114696 #46332] INFO -- : Connecting to 'capture' on port 'none'...
I, [2016-01-17T15:20:50.114955 #46332] INFO -- : Connecting to 'window' on port 'none'...