# Copyright 2016 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 audio volume test using the Chameleon board.""" import logging import os import time from autotest_lib.client.common_lib import error 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 from autotest_lib.server.cros.multimedia import remote_facade_factory class audio_AudioVolume(audio_test.AudioTest): """Server side audio volume test. This test talks to a Chameleon board and a Cros device to verify audio volume function of the Cros device. """ version = 1 RECORD_SECONDS = 5 DELAY_AFTER_BINDING = 0.5 def run_once(self, host, source_id, sink_id, recorder_id, volume_spec, golden_file, cfm_speaker=False, switch_hsp=False): """Running audio volume test. @param host: device under test CrosHost @param source_id: An ID defined in chameleon_audio_ids for source. @param sink_id: An ID defined in chameleon_audio_ids for sink if needed. Currently this is only used on bluetooth. @param recorder: An ID defined in chameleon_audio_ids for recording. @param volume_spec: A tuple (low_volume, high_volume, highest_ratio). Low volume and high volume specifies the two volumes used in the test, and highest_ratio speficies the highest acceptable value for recorded_volume_low / recorded_volume_high. For example, (50, 100, 0.2) asserts that (recorded magnitude at volume 50) should be lower than (recorded magnitude at volume 100) * 0.2. @param golden_file: A test file defined in audio_test_data. @param switch_hsp: Run a recording process on Cros device. This is to trigger Cros switching from A2DP to HSP. @param cfm_speaker: whether cfm_speaker's audio is tested which is an external USB speaker on CFM (ChromeBox For Meetings) devices. """ if (source_id == chameleon_audio_ids.CrosIds.SPEAKER and (not cfm_speaker and not audio_test_utils.has_internal_speaker(host))): return 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(source_id) recorder = widget_factory.create_widget(recorder_id) # Chameleon Mic does not need binding. binding = (recorder_id != chameleon_audio_ids.ChameleonIds.MIC) binder = None if binding: if sink_id: sink = widget_factory.create_widget(sink_id) binder = widget_factory.create_binder(source, sink, recorder) else: binder = widget_factory.create_binder(source, recorder) low_volume, high_volume, highest_ratio = volume_spec ignore_frequencies = [50, 60] second_peak_ratio = audio_test_utils.get_second_peak_ratio( source_id=source_id, recorder_id=recorder_id, is_hsp=switch_hsp) 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() audio_test_utils.dump_cros_audio_logs( host, audio_facade, self.resultsdir, 'after_binding') if not cfm_speaker: node_type = audio_test_utils.cros_port_id_to_cras_node_type( source.port_id) audio_facade.set_chrome_active_node_type(node_type, None) audio_test_utils.dump_cros_audio_logs( host, audio_facade, self.resultsdir, 'after_select') audio_test_utils.check_output_port(audio_facade, source.port_id) else: audio_test_utils.check_audio_nodes(audio_facade, (['USB'], None)) if switch_hsp: audio_test_utils.switch_to_hsp(audio_facade) logging.info('Setting playback data on Cros device') source.set_playback_data(golden_file) def playback_record(tag): """Playback and record. @param tag: file name tag. """ 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( host, audio_facade, self.resultsdir, 'after_recording_' + 'tag') source.stop_playback() recorder.read_recorded_binary() logging.info('Read recorded binary from Chameleon.') recorded_file = os.path.join( self.resultsdir, "recorded_%s.raw" % tag) logging.info('Saving recorded data to %s', recorded_file) recorder.save_file(recorded_file) recorder.remove_head(0.5) audio_facade.set_chrome_active_volume(low_volume) playback_record('low') low_dominant_spectrals = audio_test_utils.check_recorded_frequency( golden_file, recorder, second_peak_ratio=second_peak_ratio, ignore_frequencies=ignore_frequencies) audio_facade.set_chrome_active_volume(high_volume) playback_record('high') high_dominant_spectrals = audio_test_utils.check_recorded_frequency( golden_file, recorder, second_peak_ratio=second_peak_ratio, ignore_frequencies=ignore_frequencies) error_messages = [] logging.info('low_dominant_spectrals: %s', low_dominant_spectrals) logging.info('high_dominant_spectrals: %s', high_dominant_spectrals) for channel in xrange(len(low_dominant_spectrals)): _, low_coeff = low_dominant_spectrals[channel] _, high_coeff = high_dominant_spectrals[channel] ratio = low_coeff / high_coeff logging.info('Channel %d volume(at %f) / volume(at %f) = %f', channel, low_volume, high_volume, ratio) if ratio > highest_ratio: error_messages.append( 'Channel %d volume ratio: %f is incorrect.' % ( channel, ratio)) if error_messages: raise error.TestFail( 'Failed volume check: %s' % ' '.join(error_messages))