def makeDeviceList(self):
self.device_list = getH264V4l2()
self.device_dic = {}
for device in self.device_list:
self.device_dic[device[0]]=device[1] # maps from "/dev/video2" => "HD Webcam Pro"
def isActive(self):
"""Show only if there are USB cams
"""
return len(tools.getH264V4l2()) > 0