| # 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 bluetooth playback/record 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_helper |
| from autotest_lib.client.cros.chameleon import chameleon_audio_ids |
| from autotest_lib.server.cros.audio import audio_test |
| from autotest_lib.server.cros.multimedia import remote_facade_factory |
| |
| |
| class audio_AudioBasicBluetoothPlaybackRecord(audio_test.AudioTest): |
| """Server side bluetooth playback/record audio test. |
| |
| This test talks to a Chameleon board and a Cros device to verify |
| bluetooth playback/record audio function of the Cros device. |
| |
| """ |
| version = 1 |
| DELAY_BEFORE_RECORD_SECONDS = 0.5 |
| RECORD_SECONDS = 5 |
| |
| def run_once(self, host): |
| # Bluetooth HSP/HFP profile only supports one channel |
| # playback/recording. So we should use simple frequency |
| # test file which contains identical sine waves in two |
| # channels. |
| golden_file = audio_test_data.SIMPLE_FREQUENCY_TEST_FILE |
| |
| factory = remote_facade_factory.RemoteFacadeFactory(host) |
| audio_facade = factory.create_audio_facade() |
| |
| chameleon_board = host.chameleon |
| chameleon_board.reset() |
| |
| widget_factory = chameleon_audio_helper.AudioWidgetFactory( |
| factory, host) |
| |
| playback_source = widget_factory.create_widget( |
| chameleon_audio_ids.CrosIds.BLUETOOTH_HEADPHONE) |
| playback_bluetooth_widget = widget_factory.create_widget( |
| chameleon_audio_ids.PeripheralIds.BLUETOOTH_DATA_RX) |
| playback_recorder = widget_factory.create_widget( |
| chameleon_audio_ids.ChameleonIds.LINEIN) |
| playback_binder = widget_factory.create_binder( |
| playback_source, playback_bluetooth_widget, playback_recorder) |
| |
| record_source = widget_factory.create_widget( |
| chameleon_audio_ids.ChameleonIds.LINEOUT) |
| record_bluetooth_widget = widget_factory.create_widget( |
| chameleon_audio_ids.PeripheralIds.BLUETOOTH_DATA_TX) |
| record_recorder = widget_factory.create_widget( |
| chameleon_audio_ids.CrosIds.BLUETOOTH_MIC) |
| record_binder = widget_factory.create_binder( |
| record_source, record_bluetooth_widget, record_recorder) |
| |
| with chameleon_audio_helper.bind_widgets(playback_binder): |
| with chameleon_audio_helper.bind_widgets(record_binder): |
| |
| # Checks the input node selected by Cras is internal microphone. |
| # Checks crbug.com/495537 for the reason to lower bluetooth |
| # microphone priority. |
| _, input_nodes = audio_facade.get_selected_node_types() |
| if input_nodes != ['INTERNAL_MIC']: |
| raise error.TestError( |
| '%s rather than internal mic is selected on Cros ' |
| 'device' % input_nodes) |
| |
| # Selects bluetooth mic to be the active input node. |
| audio_facade.set_selected_node_types([], ['BLUETOOTH']) |
| |
| # Checks the node selected by Cras is correct. |
| o_nodes, i_nodes = audio_facade.get_selected_node_types() |
| if o_nodes != ['BLUETOOTH'] or i_nodes != ['BLUETOOTH']: |
| raise error.TestError( |
| '(%s, %s) rather than (bluetooth, bluetooth) are ' |
| 'selected on Cros device' % (o_nodes, i_nodes)) |
| |
| audio_facade.set_selected_output_volume(80) |
| |
| # Setup the playback data. This step is time consuming. |
| playback_source.set_playback_data(golden_file) |
| logging.info('Start playing %s on Cros device', |
| golden_file.path) |
| record_source.set_playback_data(golden_file) |
| logging.info('Start playing %s on Chameleon device', |
| golden_file.path) |
| |
| # Starts playing, waits for some time, and then starts recording. |
| # This is to avoid artifact caused by codec initialization. |
| playback_source.start_playback() |
| record_source.start_playback() |
| |
| time.sleep(self.DELAY_BEFORE_RECORD_SECONDS) |
| logging.info('Start recording from Chameleon.') |
| playback_recorder.start_recording() |
| logging.info('Start recording from Cros device.') |
| record_recorder.start_recording() |
| |
| time.sleep(self.RECORD_SECONDS) |
| |
| playback_recorder.stop_recording() |
| logging.info('Stopped recording from Chameleon.') |
| record_recorder.stop_recording() |
| logging.info('Stopped recording from Cros device.') |
| |
| # Gets the recorded data. This step is time consuming. |
| playback_recorder.read_recorded_binary() |
| logging.info('Read recorded binary from Chameleon.') |
| record_recorder.read_recorded_binary() |
| logging.info('Read recorded binary from Chameleon.') |
| |
| recorded_file = os.path.join(self.resultsdir, "playback_recorded.raw") |
| logging.info('Playback: Saving recorded data to %s', recorded_file) |
| playback_recorder.save_file(recorded_file) |
| recorded_file = os.path.join(self.resultsdir, "record_recorded.raw") |
| logging.info('Record: Saving recorded data to %s', recorded_file) |
| record_recorder.save_file(recorded_file) |
| |
| # Removes the beginning of recorded data. This is to avoid artifact |
| # caused by Chameleon codec initialization in the beginning of |
| # recording. |
| playback_recorder.remove_head(0.5) |
| |
| # Removes noise by a lowpass filter. |
| playback_recorder.lowpass_filter(2500) |
| recorded_file = os.path.join(self.resultsdir, "playback_filtered.raw") |
| logging.info('Saving filtered data to %s', recorded_file) |
| playback_recorder.save_file(recorded_file) |
| record_recorder.lowpass_filter(2000) |
| recorded_file = os.path.join(self.resultsdir, "record_filtered.raw") |
| logging.info('Saving filtered data to %s', recorded_file) |
| record_recorder.save_file(recorded_file) |
| |
| # 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. |
| error_messages = '' |
| if not chameleon_audio_helper.compare_recorded_result( |
| golden_file, playback_recorder, 'frequency'): |
| error_messages += 'Record: Recorded file does not match playback file.' |
| if not chameleon_audio_helper.compare_recorded_result( |
| golden_file, record_recorder, 'frequency'): |
| error_messages += 'Playback: Recorded file does not match playback file.' |
| if error_messages: |
| raise error.TestError(error_messages) |
