| # 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, 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. |
| |
| """ |
| if (source_id == chameleon_audio_ids.CrosIds.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') |
| |
| audio_test_utils.check_output_port(audio_facade, source.port_id) |
| |
| 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)) |
