| # Copyright 2015 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 USB playback audio test using the Chameleon board.""" |
| |
| import logging |
| import os |
| import time |
| |
| 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_ids |
| from autotest_lib.client.cros.chameleon import chameleon_audio_helper |
| from autotest_lib.server.cros.audio import audio_test |
| |
| |
| class audio_AudioBasicUSBPlayback(audio_test.AudioTest): |
| """Server side USB playback audio test. |
| |
| This test talks to a Chameleon board and a Cros device to verify |
| USB audio playback function of the Cros device. |
| |
| """ |
| version = 1 |
| RECORD_SECONDS = 5 |
| |
| def run_once(self, suspend=False): |
| """Runs Basic Audio USB playback test. |
| |
| @param suspend: True for suspend the device before playback. |
| False for not suspend. |
| |
| """ |
| golden_file = audio_test_data.GenerateAudioTestData( |
| path=os.path.join(self.bindir, 'fix_1k_440_16.wav'), |
| duration_secs=6, |
| frequencies=[1000, 440]) |
| |
| source = self.widget_factory.create_widget( |
| chameleon_audio_ids.CrosIds.USBOUT) |
| recorder = self.widget_factory.create_widget( |
| chameleon_audio_ids.ChameleonIds.USBIN) |
| binder = self.widget_factory.create_binder(source, recorder) |
| |
| with chameleon_audio_helper.bind_widgets(binder): |
| # Checks the node selected by cras is correct. |
| audio_test_utils.dump_cros_audio_logs( |
| self.host, self.facade, self.resultsdir, 'after_binding') |
| |
| audio_test_utils.check_and_set_chrome_active_node_types( |
| self.facade, 'USB', None) |
| audio_test_utils.dump_cros_audio_logs( |
| self.host, self.facade, self.resultsdir, 'after_select') |
| |
| audio_test_utils.check_audio_nodes(self.facade, (['USB'], None)) |
| |
| logging.info('Setting playback data on Cros device') |
| |
| self.facade.set_selected_output_volume(70) |
| |
| source.set_playback_data(golden_file) |
| |
| if suspend: |
| audio_test_utils.suspend_resume_and_verify( |
| self.host, self.factory) |
| # Explicitly select the node as there is a known issue |
| # that the selected node might change after a suspension. |
| # We should remove this after the issue is addressed |
| # (crbug:987529). |
| self.facade.set_selected_node_types(['USB'], None) |
| audio_test_utils.check_audio_nodes(self.facade, |
| (['USB'], None)) |
| |
| # Starts recording from Chameleon, waits for some time, and then |
| # starts playing from Cros device. |
| logging.info('Start recording from Chameleon.') |
| recorder.start_recording() |
| |
| logging.info('Start playing %s on Cros device', golden_file.path) |
| source.start_playback() |
| |
| time.sleep(self.RECORD_SECONDS) |
| |
| recorder.stop_recording() |
| logging.info('Stopped recording from Chameleon.') |
| |
| audio_test_utils.dump_cros_audio_logs( |
| self.host, self.facade, self.resultsdir, 'after_recording') |
| |
| recorder.read_recorded_binary() |
| logging.info('Read recorded binary from Chameleon.') |
| |
| recorded_file = os.path.join(self.resultsdir, "recorded.raw") |
| logging.info('Saving recorded data to %s', recorded_file) |
| recorder.save_file(recorded_file) |
| |
| audio_test_utils.check_recorded_frequency(golden_file, recorder) |
