| # Copyright 2018 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """This is a server side hotwording test using the Chameleon board.""" |
| |
| import logging |
| import os |
| import time |
| import threading |
| |
| from autotest_lib.client.cros.audio import audio_test_data |
| from autotest_lib.client.cros.chameleon import audio_test_utils |
| from autotest_lib.client.cros.chameleon import chameleon_audio_helper |
| from autotest_lib.client.cros.chameleon import chameleon_audio_ids |
| from autotest_lib.server.cros.audio import audio_test |
| from autotest_lib.server.cros.multimedia import remote_facade_factory |
| |
| |
| class audio_AudioBasicHotwording(audio_test.AudioTest): |
| """Server side hotwording test. |
| |
| This test talks to a Chameleon board and a Cros device to verify |
| hotwording function of the Cros device. |
| |
| """ |
| version = 1 |
| DELAY_AFTER_BINDING_SECS = 0.5 |
| DELAY_AFTER_START_LISTENING_SECS = 1 |
| DELAY_AFTER_SUSPEND_SECS = 5 |
| |
| RECORD_SECONDS = 5 |
| SUSPEND_SECONDS = 20 |
| RESUME_TIMEOUT_SECS = 60 |
| |
| def run_once(self, host, suspend=False): |
| """Runs Basic Audio Hotwording test. |
| |
| @param host: device under test CrosHost |
| |
| @param suspend: True for suspend the device before playing hotword. |
| False for hotwording test suspend. |
| |
| """ |
| if (not audio_test_utils.has_hotwording(host)): |
| return |
| |
| hotword_file = audio_test_data.HOTWORD_TEST_FILE |
| golden_file = audio_test_data.SIMPLE_FREQUENCY_TEST_1330_FILE |
| |
| chameleon_board = host.chameleon |
| factory = remote_facade_factory.RemoteFacadeFactory( |
| host, results_dir=self.resultsdir) |
| |
| chameleon_board.setup_and_reset(self.outputdir) |
| |
| widget_factory = chameleon_audio_helper.AudioWidgetFactory( |
| factory, host) |
| |
| source = widget_factory.create_widget( |
| chameleon_audio_ids.ChameleonIds.LINEOUT) |
| sink = widget_factory.create_widget( |
| chameleon_audio_ids.PeripheralIds.SPEAKER) |
| binder = widget_factory.create_binder(source, sink) |
| |
| listener = widget_factory.create_widget( |
| chameleon_audio_ids.CrosIds.HOTWORDING) |
| |
| with chameleon_audio_helper.bind_widgets(binder): |
| time.sleep(self.DELAY_AFTER_BINDING_SECS) |
| audio_facade = factory.create_audio_facade() |
| |
| audio_test_utils.dump_cros_audio_logs( |
| host, audio_facade, self.resultsdir, 'after_binding') |
| |
| logging.info('Start listening from Cros device.') |
| listener.start_listening() |
| time.sleep(self.DELAY_AFTER_START_LISTENING_SECS) |
| |
| audio_test_utils.dump_cros_audio_logs( |
| host, audio_facade, self.resultsdir, |
| 'after_start_listening') |
| |
| if suspend: |
| def suspend_host(): |
| logging.info('Suspend the DUT for %d secs', |
| self.SUSPEND_SECONDS) |
| host.suspend(suspend_time=self.SUSPEND_SECONDS, |
| allow_early_resume=True) |
| |
| # Folk a thread to suspend the host |
| boot_id = host.get_boot_id() |
| thread = threading.Thread(target=suspend_host) |
| thread.start() |
| suspend_start_time = time.time() |
| time.sleep(self.DELAY_AFTER_SUSPEND_SECS) |
| |
| # Starts playing hotword and golden file. |
| # Sleep for 5s for DUT to detect and record the sounds |
| logging.info('Setting hotword playback data on Chameleon') |
| remote_hotword_file_path = source.set_playback_data(hotword_file) |
| |
| logging.info('Setting golden playback data on Chameleon') |
| remote_golden_file_path = source.set_playback_data(golden_file) |
| |
| logging.info('Start playing %s from Chameleon', |
| hotword_file.path) |
| source.start_playback_with_path(remote_hotword_file_path) |
| time.sleep(hotword_file.duration_secs) |
| |
| logging.info('Start playing %s from Chameleon', |
| golden_file.path) |
| source.start_playback_with_path(remote_golden_file_path) |
| |
| time.sleep(self.RECORD_SECONDS) |
| |
| # If the DUT suspended, the server will reconnect to DUT |
| if suspend: |
| host.test_wait_for_resume(boot_id, self.RESUME_TIMEOUT_SECS) |
| real_suspend_time = time.time() - suspend_start_time |
| logging.info('Suspend for %f time.', real_suspend_time) |
| |
| # Check the if real suspend time is less than SUSPEND_SECOND |
| if real_suspend_time < self.SUSPEND_SECONDS: |
| logging.info('Real suspend time is less than ' |
| 'SUSPEND_SECONDS. Hotwording succeeded.') |
| else: |
| logging.error('Real suspend time is larger than or equal to' |
| 'SUSPEND_SECONDS. Hostwording failed.') |
| |
| listener.stop_listening() |
| logging.info('Stopped listening from Cros device.') |
| |
| audio_test_utils.dump_cros_audio_logs( |
| host, audio_facade, self.resultsdir, 'after_listening') |
| |
| listener.read_recorded_binary() |
| logging.info('Read recorded binary from Cros device.') |
| |
| recorded_file = os.path.join(self.resultsdir, "recorded.raw") |
| logging.info('Saving recorded data to %s', recorded_file) |
| listener.save_file(recorded_file) |
| |
| # Removes the first 5s of recorded data, which included hotword and |
| # the data before hotword. |
| listener.remove_head(5.0) |
| short_recorded_file = os.path.join(self.resultsdir, |
| "short_recorded.raw") |
| listener.save_file(short_recorded_file) |
| |
| # Cros device only records one channel data. Here we set the channel map |
| # of the recorder to compare the recorded data with left channel of the |
| # test data. This is fine as left and right channel of test data are |
| # identical. |
| listener.channel_map = [0] |
| |
| # Compares data by frequency. Audio signal from Chameleon Line-Out to |
| # speaker and finally recorded on Cros device using hotwording chip |
| # has gone through analog processing and through the air. |
| # This suffers from codec artifacts and noise on the path. |
| # Comparing data by frequency is more robust than comparing them by |
| # correlation, which is suitable for fully-digital audio path like USB |
| # and HDMI. |
| audio_test_utils.check_recorded_frequency(golden_file, listener, |
| second_peak_ratio=0.2) |
