| # Copyright 2016 The Chromium OS Authors. All rights reserved. |
| # 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 internal speaker test using the Chameleon board, |
| audio board and the audio box enclosure for sound isolation.""" |
| |
| import logging |
| import os |
| import time |
| |
| from autotest_lib.server.cros.audio import audio_test |
| 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_helper |
| from autotest_lib.client.cros.chameleon import chameleon_audio_ids |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.server.cros.multimedia import remote_facade_factory |
| |
| |
| class audio_LeftRightInternalSpeaker(audio_test.AudioTest): |
| """Server side left/right internal speaker audio test. |
| |
| This test verifies: |
| 1. When a file with audio on the left channel is played, that a sound is |
| emitted from at least one speaker. |
| 2. When a file with audio on the right channel is played, that a sound |
| is emitted from at least one speaker. |
| |
| This test cannot verify: |
| 1. If the speaker making the sound is not the one corresponding to the |
| channel the audio was embedded in in the file. |
| |
| """ |
| version = 1 |
| DELAY_BEFORE_RECORD_SECONDS = 0.5 |
| DELAY_AFTER_BINDING = 0.5 |
| RECORD_SECONDS = 8 |
| RIGHT_WAV_FILE_URL = ( |
| 'http://commondatastorage.googleapis.com/chromiumos-test-assets-' |
| 'public/audio_test/chameleon/Speaker/right_440_half.wav') |
| LEFT_WAV_FILE_URL = ( |
| 'http://commondatastorage.googleapis.com/chromiumos-test-assets-' |
| 'public/audio_test/chameleon/Speaker/left_440_half.wav') |
| |
| def run_once(self, host, player): |
| """ |
| |
| Entry point for test case. |
| |
| @param host: A reference to the DUT. |
| @param player: A string representing what audio player to use. Could |
| be 'native' or 'browser'. |
| |
| """ |
| |
| if not audio_test_utils.has_internal_speaker(host): |
| return |
| |
| host.chameleon.setup_and_reset(self.outputdir) |
| |
| facade_factory = remote_facade_factory.RemoteFacadeFactory( |
| host, |
| results_dir=self.resultsdir) |
| self.audio_facade = facade_factory.create_audio_facade() |
| self.browser_facade = facade_factory.create_browser_facade() |
| |
| widget_factory = chameleon_audio_helper.AudioWidgetFactory( |
| facade_factory, |
| host) |
| self.sound_source = widget_factory.create_widget( |
| chameleon_audio_ids.CrosIds.SPEAKER) |
| self.sound_recorder = widget_factory.create_widget( |
| chameleon_audio_ids.ChameleonIds.MIC) |
| |
| self.play_and_record( |
| host, |
| player, |
| 'left') |
| self.process_and_save_data(channel='left') |
| self.validate_recorded_data(channel='left') |
| |
| self.play_and_record( |
| host, |
| player, |
| 'right') |
| self.process_and_save_data(channel='right') |
| self.validate_recorded_data(channel='right') |
| |
| |
| def play_and_record(self, host, player, channel): |
| """Play file using given details and record playback. |
| |
| The recording is accessible through the recorder object and doesn't |
| need to be returned explicitly. |
| |
| @param host: The DUT. |
| @param player: String name of audio player we intend to use. |
| @param channel: Either 'left' or 'right' |
| |
| """ |
| |
| #audio_facade = factory.create_audio_facade() |
| audio_test_utils.dump_cros_audio_logs( |
| host, self.audio_facade, self.resultsdir, |
| 'before_recording_' + channel) |
| |
| # Verify that output node is correct. |
| output_nodes, _ = self.audio_facade.get_selected_node_types() |
| if output_nodes != ['INTERNAL_SPEAKER']: |
| raise error.TestFail( |
| '%s rather than internal speaker is selected on Cros ' |
| 'device' % output_nodes) |
| self.audio_facade.set_selected_output_volume(80) |
| |
| if player == 'native': |
| data_format=dict(file_type='raw', |
| sample_format='S16_LE', |
| channel=2, |
| rate=48000) |
| if channel == 'left': |
| frequencies = [440, 0] |
| else: |
| frequencies = [0, 440] |
| sound_file = audio_test_data.GenerateAudioTestData( |
| data_format=data_format, |
| path=os.path.join(self.bindir, '440_half.raw'), |
| duration_secs=10, |
| frequencies=frequencies) |
| |
| logging.info('Going to use cras_test_client on CrOS') |
| logging.info('Playing the file %s', sound_file) |
| self.sound_source.set_playback_data(sound_file) |
| self.sound_source.start_playback() |
| time.sleep(self.DELAY_BEFORE_RECORD_SECONDS) |
| self.sound_recorder.start_recording() |
| time.sleep(self.RECORD_SECONDS) |
| self.sound_recorder.stop_recording() |
| self.sound_source.stop_playback() |
| sound_file.delete() |
| logging.info('Recording finished. Was done in format %s', |
| self.sound_recorder.data_format) |
| |
| elif player == 'browser': |
| if channel == 'left': |
| sound_file = self.LEFT_WAV_FILE_URL |
| else: |
| sound_file = self.RIGHT_WAV_FILE_URL |
| |
| tab_descriptor = self.browser_facade.new_tab(sound_file) |
| |
| time.sleep(self.DELAY_BEFORE_RECORD_SECONDS) |
| logging.info('Start recording from Chameleon.') |
| self.sound_recorder.start_recording() |
| |
| time.sleep(self.RECORD_SECONDS) |
| |
| self.sound_recorder.stop_recording() |
| logging.info('Stopped recording from Chameleon.') |
| self.browser_facade.close_tab(tab_descriptor) |
| |
| else: |
| raise error.TestFail( |
| '%s is not in list of accepted audio players', |
| player) |
| |
| audio_test_utils.dump_cros_audio_logs( |
| host, self.audio_facade, self.resultsdir, |
| 'after_recording_' + channel) |
| |
| |
| def process_and_save_data(self, channel): |
| """Save recorded data to files and process for analysis. |
| |
| @param channel: 'left' or 'right'. |
| |
| """ |
| |
| self.sound_recorder.read_recorded_binary() |
| file_name = 'recorded_' + channel + '.raw' |
| unprocessed_file = os.path.join(self.resultsdir, file_name) |
| logging.info('Saving raw unprocessed output to %s', unprocessed_file) |
| self.sound_recorder.save_file(unprocessed_file) |
| |
| # Removes the beginning of recorded data. This is to avoid artifact |
| # caused by Chameleon codec initialization in the beginning of |
| # recording. |
| self.sound_recorder.remove_head(1.0) |
| |
| # Reduce noise |
| self.sound_recorder.lowpass_filter(1000) |
| file_name = 'recorded_filtered_' + channel + '.raw' |
| processsed_file = os.path.join(self.resultsdir, file_name) |
| logging.info('Saving processed sound output to %s', processsed_file) |
| self.sound_recorder.save_file(processsed_file) |
| |
| |
| def validate_recorded_data(self, channel): |
| """Read processed data and validate by comparing to golden file. |
| |
| @param channel: 'left' or 'right'. |
| |
| """ |
| |
| # Compares data by frequency. Audio signal recorded by microphone has |
| # gone through analog processing and through the air. |
| # This suffers from codec artifacts and noise on the path. |
| # Comparing data by frequency is more robust than comparing by |
| # correlation, which is suitable for fully-digital audio path like USB |
| # and HDMI. |
| logging.info('Validating recorded output for channel %s', channel) |
| audio_test_utils.check_recorded_frequency( |
| audio_test_data.SIMPLE_FREQUENCY_SPEAKER_TEST_FILE, |
| self.sound_recorder, |
| second_peak_ratio=0.1, |
| ignore_frequencies=[50, 60]) |
