| # 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.common_lib import error |
| from autotest_lib.client.cros.audio import audio_test_data |
| 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 |
| from autotest_lib.server.cros.multimedia import remote_facade_factory |
| |
| |
| 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 |
| DELAY_AFTER_BINDING = 3 |
| |
| def run_once(self, host): |
| golden_file = audio_test_data.SWEEP_TEST_FILE |
| |
| chameleon_board = host.chameleon |
| factory = remote_facade_factory.RemoteFacadeFactory(host) |
| |
| chameleon_board.reset() |
| |
| widget_factory = chameleon_audio_helper.AudioWidgetFactory( |
| factory, host) |
| |
| source = widget_factory.create_widget( |
| chameleon_audio_ids.CrosIds.USBOUT) |
| recorder = widget_factory.create_widget( |
| chameleon_audio_ids.ChameleonIds.USBIN) |
| binder = widget_factory.create_binder(source, recorder) |
| binder.connect() |
| |
| with chameleon_audio_helper.bind_widgets(binder): |
| # Checks the node selected by cras is correct. |
| time.sleep(self.DELAY_AFTER_BINDING) |
| audio_facade = factory.create_audio_facade() |
| output_nodes, _ = audio_facade.get_selected_node_types() |
| if output_nodes != ['USB']: |
| raise error.TestFail( |
| '%s rather than USB is selected on Cros ' |
| 'device' % output_nodes) |
| |
| logging.info('Setting playback data on Cros device') |
| |
| audio_facade.set_selected_output_volume(70) |
| |
| source.set_playback_data(golden_file) |
| |
| # 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.') |
| |
| 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) |
| |
| if not chameleon_audio_helper.compare_recorded_result( |
| golden_file, recorder, 'correlation'): |
| raise error.TestFail( |
| 'Recorded file does not match playback file') |
