Video input in GUI with mac

I'm trying to open the camera to take the input video but it displays a white window with a red cross

Here's my code:

% vid=videoinput('macvideo',1); imaqhwinfo(vid);

preview(vid);

Answer 1

[Sudarshan Kolar]

Hello DSB,

Disabling the firewall should help you fix the issue.

Sudarshan