1 # Copyright 2015 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 """This is a server side USB playback audio test using the Chameleon board.""" 6 7 import logging 8 import os 9 import time 10 11 from autotest_lib.client.bin import utils 12 from autotest_lib.client.cros.audio import audio_test_data 13 from autotest_lib.client.cros.chameleon import audio_test_utils 14 from autotest_lib.client.cros.chameleon import chameleon_audio_ids 15 from autotest_lib.client.cros.chameleon import chameleon_audio_helper 16 from autotest_lib.server.cros.audio import audio_test 17 from autotest_lib.server.cros.multimedia import remote_facade_factory 18 19 20 class audio_AudioBasicUSBPlayback(audio_test.AudioTest): 21 """Server side USB playback audio test. 22 23 This test talks to a Chameleon board and a Cros device to verify 24 USB audio playback function of the Cros device. 25 26 """ 27 version = 1 28 RECORD_SECONDS = 5 29 SUSPEND_SECONDS = 30 30 RPC_RECONNECT_TIMEOUT = 60 31 32 def run_once(self, host, suspend=False): 33 golden_file = audio_test_data.SWEEP_TEST_FILE 34 35 chameleon_board = host.chameleon 36 factory = remote_facade_factory.RemoteFacadeFactory( 37 host, results_dir=self.resultsdir) 38 39 chameleon_board.setup_and_reset(self.outputdir) 40 41 widget_factory = chameleon_audio_helper.AudioWidgetFactory( 42 factory, host) 43 44 source = widget_factory.create_widget( 45 chameleon_audio_ids.CrosIds.USBOUT) 46 recorder = widget_factory.create_widget( 47 chameleon_audio_ids.ChameleonIds.USBIN) 48 binder = widget_factory.create_binder(source, recorder) 49 50 with chameleon_audio_helper.bind_widgets(binder): 51 # Checks the node selected by cras is correct. 52 audio_facade = factory.create_audio_facade() 53 54 audio_test_utils.dump_cros_audio_logs( 55 host, audio_facade, self.resultsdir, 'after_binding') 56 57 audio_test_utils.check_audio_nodes(audio_facade, (['USB'], None)) 58 59 logging.info('Setting playback data on Cros device') 60 61 audio_facade.set_selected_output_volume(70) 62 63 source.set_playback_data(golden_file) 64 65 if suspend: 66 audio_test_utils.suspend_resume(host, self.SUSPEND_SECONDS) 67 utils.poll_for_condition(condition=factory.ready, 68 timeout=self.RPC_RECONNECT_TIMEOUT, 69 desc='multimedia server reconnect') 70 audio_test_utils.check_audio_nodes(audio_facade, 71 (['USB'], None)) 72 73 # Starts recording from Chameleon, waits for some time, and then 74 # starts playing from Cros device. 75 logging.info('Start recording from Chameleon.') 76 recorder.start_recording() 77 78 logging.info('Start playing %s on Cros device', 79 golden_file.path) 80 source.start_playback() 81 82 time.sleep(self.RECORD_SECONDS) 83 84 recorder.stop_recording() 85 logging.info('Stopped recording from Chameleon.') 86 87 audio_test_utils.dump_cros_audio_logs( 88 host, audio_facade, self.resultsdir, 'after_recording') 89 90 recorder.read_recorded_binary() 91 logging.info('Read recorded binary from Chameleon.') 92 93 recorded_file = os.path.join(self.resultsdir, "recorded.raw") 94 logging.info('Saving recorded data to %s', recorded_file) 95 recorder.save_file(recorded_file) 96 97 audio_test_utils.compare_recorded_correlation(golden_file, recorder) 98
