def main():
# Load the database of items we know about.
global db
db = ImageDatabase(options)
# Initialize the camera object we'll use to take pictures.
global camera
camera = Camera(options.video_source,
options.video_width,
options.video_height,
options.video_fps)
with open(get_sound('shutter.raw'), 'rb') as f:
global SHUTTER_TONE
SHUTTER_TONE = f.read()
# Set up the audio devices if they are configured
if options.audio_out_device:
audioutils.ALSA_SPEAKER = options.audio_out_device
if options.audio_in_device:
audioutils.ALSA_MICROPHONE = options.audio_in_device
# If log path is set, make sure the corresponding directory exists.
if options.log_path and not os.path.isdir(options.log_path):
os.makedirs(options.log_path)
# If --web-server was specified, run a web server in a separate process
# to expose the files in that directory.
# Note that we're using port 80, assuming we'll always run as root.
if options.web_server:
subprocess.Popen(['python', '-m', 'SimpleHTTPServer', '80'],
cwd=options.web_server_root)
# Monitor the button for events
global eventloop
eventloop = EventLoop()
eventloop.monitor_gpio_button(options.gpio_pin, button_handler,
doubleclick_speed=0)
# If you don't have a button, use --cmd-ui to monitor the keyboard instead.
if options.cmd_ui:
# Print instructions.
keyboard_handler()
# Monitor it on the event loop.
eventloop.monitor_console(keyboard_handler, prompt="Command: ")
# Let the user know we're ready
ready()
# Run the event loop forever
eventloop.loop()
