def synthesize(self, command: str) -> None:
# Parse command
command_parser = CommandParser()
parsed_command = command_parser.parse_command(command)
# Create model of given word
analyzer = Analyzer(self.sampling_frequency, self.frame_length, self.overlap, self.pre_emphasis)
model = analyzer.analyze(parsed_command)
# Create base signal generator
print('Synthesizing command "' + parsed_command + '"...')
base_signal_generator = BaseSignalGenerator(self.sampling_frequency)
# Synthesize all frames (generate base signal + filter)
dft_frames = list()
for frame in model.frames:
# Generate base signal
if frame.base_frequency == 0:
base_signal = base_signal_generator.generate_white_noise(model.get_frame_length())
else:
base_signal = base_signal_generator.generate_pulses(model.get_frame_length(), frame.base_frequency)
base_signal_dft = fft(base_signal)
# Filtration
dft_frames.append(base_signal_dft*frame.energies)
# Merge all frames using overlap-add technique
synthesized_signal = np.array(np.real(idft(dft_frames[0])) * analyzer.hamming_window)
window_signal = analyzer.hamming_window
for i in range(1, len(dft_frames)):
synthesized_signal = np.concatenate([synthesized_signal, np.zeros(self.hop)])
window_signal = np.concatenate([window_signal, np.zeros(self.hop)])
synthesized_signal[i*self.hop:i*self.hop+self.frame_length] += np.real(idft(dft_frames[i])) * analyzer.hamming_window
window_signal[i*self.hop:i*self.hop+self.frame_length] += analyzer.hamming_window
# Make sure not to divide by zero
for i in range(len(window_signal)):
if 0.1 > window_signal[i] > -0.1:
if window_signal[i] >= 0:
window_signal[i] = 0.1
else:
window_signal[i] = -0.1
# Divide signal by windows to remove buzzing
synthesized_signal = synthesized_signal/window_signal
# De-emphasis
for i in range(1, len(synthesized_signal)):
synthesized_signal[i] += self.pre_emphasis*synthesized_signal[i-1]
# Normalize signal
synthesized_signal /= np.max(synthesized_signal)
# Plot and save to file
plt.plot(synthesized_signal)
plt.title('Synthesized signal')
plt.xlabel('Time [samples]')
plt.ylabel('Amplitude')
plt.show()
scipy.io.wavfile.write('output.wav', self.sampling_frequency, synthesized_signal)
def _check_docker_by_container_id(item):
analyzer = Analyzer()
# -- Evaluates the docker image
evaluated_docker_image = analyzer.evaluate_image(None, item['container_id'])
# -- Updates mongodb report
InternalServer.get_mongodb_driver().update_docker_image_scan_result_to_history(item['_id'],
evaluated_docker_image)
def _check_docker_by_container_id(item):
analyzer = Analyzer()
# -- Evaluates the docker image
evaluated_docker_image = analyzer.evaluate_image(None, item['container_id'])
# -- Updates mongodb report
InternalServer.get_mongodb_driver().update_docker_image_scan_result_to_history(item['_id'],
evaluated_docker_image)
def _check_docker_by_image_name(item):
analyzer = Analyzer()
# -- Evaluates the docker image
evaluated_docker_image = analyzer.evaluate_image(item['image_name'], None)
# -- Updates mongodb report
InternalServer.get_mongodb_driver().update_docker_image_scan_result_to_history(item['_id'],
evaluated_docker_image)
# -- Cleanup
if item['pulled']:
InternalServer.get_docker_driver().docker_remove_image(item['image_name'])
def _check_docker_by_image_name(item):
analyzer = Analyzer()
# -- Evaluates the docker image
evaluated_docker_image = analyzer.evaluate_image(item['image_name'], None)
# -- Updates mongodb report
InternalServer.get_mongodb_driver().update_docker_image_scan_result_to_history(item['_id'],
evaluated_docker_image)
# -- Cleanup
if item['pulled']:
InternalServer.get_docker_driver().docker_remove_image(item['image_name'])
def init_process(model_path, needs_patches, device):
global analyzer
current_process = multiprocessing.current_process()
process_name = current_process.name
if device == "@numpy":
device_id = -1
else:
device_id = int(process_name.split('-')[-1]) - 1
analyzer = Analyzer(model_path, device_id, needs_patches=needs_patches)
class Agent:
# -- Public methods
# Agent Constructor
def __init__(self, dagda_server_url):
super(Agent, self).__init__()
self.dagda_server_url = dagda_server_url
self.analyzer = Analyzer(dagda_server_url=dagda_server_url)
def run_static_analysis(self, image_name=None, container_id=None):
evaluated_docker_image = self.analyzer.evaluate_image(
image_name=image_name, container_id=container_id)
docker_image_name = evaluated_docker_image['image_name']
r = requests.post(self.dagda_server_url + '/history/' +
docker_image_name,
data=json.dumps(evaluated_docker_image),
headers={'content-type': 'application/json'})
# -- Print cmd output
if r is not None and r.content:
print(
json.dumps(json.loads(r.content.decode('utf-8')),
sort_keys=True,
indent=4))
def initialize(self):
if self.analyzer is not None:
return
self.analyzer = Analyzer(Path(self.config['model_path']), self.config['device_id'], needs_patches=True)
def __init__(self, dagda_server_url):
super(Agent, self).__init__()
self.dagda_server_url = dagda_server_url
self.analyzer = Analyzer(dagda_server_url=dagda_server_url)