TSPS is a cross platform Toolkit for Sensing People in Spaces. It performs openCV operations on live video (Kinect, web camera, etc) and sends it to clients as JSON (via WebSockets), OSC, TUIO, or TCP.
In the source tab in 1.3.7, when I have a usb webcam plugged into my Macbook, both video input options will show up, i.e. there are check boxes for the built-in camera and the usb webcam, but only the feed from the usb webcam is available, it doesn't matter which box I check. However, the video settings option in 1.3.6 will let me choose between the two no problem.
In the source tab in 1.3.7, when I have a usb webcam plugged into my Macbook, both video input options will show up, i.e. there are check boxes for the built-in camera and the usb webcam, but only the feed from the usb webcam is available, it doesn't matter which box I check. However, the video settings option in 1.3.6 will let me choose between the two no problem.