| # 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 WebRTC audio 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 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.cros.multimedia import webrtc_utils |
| from autotest_lib.server.cros.audio import audio_test |
| from autotest_lib.server.cros.multimedia import remote_facade_factory |
| |
| |
| class audio_AudioWebRTCLoopback(audio_test.AudioTest): |
| """Server side WebRTC loopback audio test. |
| |
| This test talks to a Chameleon board and a Cros device to verify |
| WebRTC audio function of the Cros device. |
| A sine tone is played to Cros device from Chameleon USB. |
| Through AppRTC loopback page, the sine tone is played to Chameleon |
| LineIn from Cros device headphone. |
| Using USB as audio source because it can provide completely correct |
| data to loopback. This enables the test to do quality verification on |
| headphone. |
| |
| ----------->->->------------ |
| USB out | | USB in |
| ----------- -------- AppRTC loopback |
| | Chameleon | | Cros | <--------> webpage |
| ----------- -------- |
| Line-In | | Headphone |
| -----------<-<-<------------ |
| |
| |
| The recorded audio is copied to server side and examined for quality. |
| |
| """ |
| version = 1 |
| RECORD_SECONDS = 10 |
| DELAY_AFTER_BINDING_SECONDS = 0.5 |
| |
| def run_once(self, host, check_quality=False, chrome_block_size=None): |
| """Running basic headphone audio tests. |
| |
| @param host: device under test host |
| @param check_quality: flag to check audio quality. |
| @param chrome_block_size: A number to be passed to Chrome |
| --audio-buffer-size argument to specify |
| block size. |
| |
| """ |
| if not audio_test_utils.has_audio_jack(host): |
| raise error.TestNAError( |
| 'No audio jack for the DUT.' |
| 'Please check label of the host and control file.' |
| 'Please check the host label and test dependency.') |
| |
| golden_file = audio_test_data.GenerateAudioTestData( |
| data_format=dict(file_type='wav', |
| sample_format='S16_LE', |
| channel=2, |
| rate=48000), |
| path=os.path.join(self.bindir, 'fix_660_16.wav'), |
| duration_secs=60, |
| frequencies=[660, 660]) |
| |
| chameleon_board = host.chameleon |
| |
| # Checks if a block size is specified for Chrome. |
| extra_browser_args = None |
| if chrome_block_size: |
| extra_browser_args = ['--audio-buffer-size=%d' % chrome_block_size] |
| |
| factory = remote_facade_factory.RemoteFacadeFactory( |
| host, results_dir=self.resultsdir, |
| extra_browser_args=extra_browser_args) |
| |
| chameleon_board.setup_and_reset(self.outputdir) |
| |
| widget_factory = chameleon_audio_helper.AudioWidgetFactory( |
| factory, host) |
| |
| headphone = widget_factory.create_widget( |
| chameleon_audio_ids.CrosIds.HEADPHONE) |
| linein = widget_factory.create_widget( |
| chameleon_audio_ids.ChameleonIds.LINEIN) |
| headphone_linein_binder = widget_factory.create_binder(headphone, linein) |
| |
| usb_out = widget_factory.create_widget(chameleon_audio_ids.ChameleonIds.USBOUT) |
| usb_in = widget_factory.create_widget(chameleon_audio_ids.CrosIds.USBIN) |
| usb_binder = widget_factory.create_binder(usb_out, usb_in) |
| |
| with chameleon_audio_helper.bind_widgets(headphone_linein_binder): |
| with chameleon_audio_helper.bind_widgets(usb_binder): |
| time.sleep(self.DELAY_AFTER_BINDING_SECONDS) |
| audio_facade = factory.create_audio_facade() |
| |
| audio_test_utils.dump_cros_audio_logs( |
| host, audio_facade, self.resultsdir, 'after_binding') |
| |
| # Checks whether line-out or headphone is detected. |
| hp_jack_node_type = audio_test_utils.check_hp_or_lineout_plugged( |
| audio_facade) |
| |
| # Checks headphone and USB nodes are plugged. |
| # Let Chrome select the proper I/O nodes. |
| # Input is USB, output is headphone. |
| audio_test_utils.check_and_set_chrome_active_node_types( |
| audio_facade=audio_facade, |
| output_type=hp_jack_node_type, |
| input_type='USB') |
| |
| logging.info('Setting playback data on Chameleon') |
| usb_out.set_playback_data(golden_file) |
| |
| browser_facade = factory.create_browser_facade() |
| apprtc = webrtc_utils.AppRTCController(browser_facade) |
| logging.info('Load AppRTC loopback webpage') |
| apprtc.new_apprtc_loopback_page() |
| |
| logging.info('Start recording from Chameleon.') |
| linein.start_recording() |
| |
| logging.info('Start playing %s on Cros device', |
| golden_file.path) |
| usb_out.start_playback() |
| |
| time.sleep(self.RECORD_SECONDS) |
| |
| linein.stop_recording() |
| logging.info('Stopped recording from Chameleon.') |
| |
| audio_test_utils.dump_cros_audio_logs( |
| host, audio_facade, self.resultsdir, 'after_recording') |
| |
| usb_out.stop_playback() |
| |
| linein.read_recorded_binary() |
| logging.info('Read recorded binary from Chameleon.') |
| |
| golden_file.delete() |
| |
| recorded_file = os.path.join(self.resultsdir, "recorded.raw") |
| logging.info('Saving recorded data to %s', recorded_file) |
| linein.save_file(recorded_file) |
| |
| diagnostic_path = os.path.join( |
| self.resultsdir, |
| 'audio_diagnostics.txt.after_recording') |
| logging.info('Examine diagnostic file at %s', diagnostic_path) |
| diag_warning_msg = audio_test_utils.examine_audio_diagnostics( |
| diagnostic_path) |
| if diag_warning_msg: |
| logging.warning(diag_warning_msg) |
| |
| # Raise error.TestFail if there is issue. |
| audio_test_utils.check_recorded_frequency( |
| golden_file, linein, check_artifacts=check_quality) |
