166 lines
6.8 KiB
Python
166 lines
6.8 KiB
Python
# Copyright 2016 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""This is a server side WebRTC audio test using the Chameleon board."""
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import logging
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import os
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import time
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from autotest_lib.client.common_lib import error
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from autotest_lib.client.cros.audio import audio_test_data
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from autotest_lib.client.cros.chameleon import audio_test_utils
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from autotest_lib.client.cros.chameleon import chameleon_audio_helper
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from autotest_lib.client.cros.chameleon import chameleon_audio_ids
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from autotest_lib.client.cros.multimedia import webrtc_utils
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from autotest_lib.server.cros.audio import audio_test
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from autotest_lib.server.cros.multimedia import remote_facade_factory
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class audio_AudioWebRTCLoopback(audio_test.AudioTest):
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"""Server side WebRTC loopback audio test.
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This test talks to a Chameleon board and a Cros device to verify
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WebRTC audio function of the Cros device.
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A sine tone is played to Cros device from Chameleon USB.
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Through AppRTC loopback page, the sine tone is played to Chameleon
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LineIn from Cros device headphone.
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Using USB as audio source because it can provide completely correct
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data to loopback. This enables the test to do quality verification on
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headphone.
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----------->->->------------
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USB out | | USB in
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----------- -------- AppRTC loopback
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| Chameleon | | Cros | <--------> webpage
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----------- --------
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Line-In | | Headphone
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-----------<-<-<------------
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The recorded audio is copied to server side and examined for quality.
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"""
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version = 1
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RECORD_SECONDS = 10
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DELAY_AFTER_BINDING_SECONDS = 0.5
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def run_once(self, host, check_quality=False, chrome_block_size=None):
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"""Running basic headphone audio tests.
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@param host: device under test host
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@param check_quality: flag to check audio quality.
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@param chrome_block_size: A number to be passed to Chrome
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--audio-buffer-size argument to specify
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block size.
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"""
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if not audio_test_utils.has_audio_jack(host):
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raise error.TestNAError(
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'No audio jack for the DUT.'
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'Please check label of the host and control file.'
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'Please check the host label and test dependency.')
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golden_file = audio_test_data.GenerateAudioTestData(
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data_format=dict(file_type='wav',
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sample_format='S16_LE',
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channel=2,
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rate=48000),
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path=os.path.join(self.bindir, 'fix_660_16.wav'),
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duration_secs=60,
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frequencies=[660, 660])
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chameleon_board = host.chameleon
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# Checks if a block size is specified for Chrome.
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extra_browser_args = None
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if chrome_block_size:
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extra_browser_args = ['--audio-buffer-size=%d' % chrome_block_size]
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factory = remote_facade_factory.RemoteFacadeFactory(
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host, results_dir=self.resultsdir,
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extra_browser_args=extra_browser_args)
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chameleon_board.setup_and_reset(self.outputdir)
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widget_factory = chameleon_audio_helper.AudioWidgetFactory(
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factory, host)
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headphone = widget_factory.create_widget(
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chameleon_audio_ids.CrosIds.HEADPHONE)
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linein = widget_factory.create_widget(
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chameleon_audio_ids.ChameleonIds.LINEIN)
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headphone_linein_binder = widget_factory.create_binder(headphone, linein)
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usb_out = widget_factory.create_widget(chameleon_audio_ids.ChameleonIds.USBOUT)
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usb_in = widget_factory.create_widget(chameleon_audio_ids.CrosIds.USBIN)
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usb_binder = widget_factory.create_binder(usb_out, usb_in)
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with chameleon_audio_helper.bind_widgets(headphone_linein_binder):
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with chameleon_audio_helper.bind_widgets(usb_binder):
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time.sleep(self.DELAY_AFTER_BINDING_SECONDS)
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audio_facade = factory.create_audio_facade()
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audio_test_utils.dump_cros_audio_logs(
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host, audio_facade, self.resultsdir, 'after_binding')
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# Checks whether line-out or headphone is detected.
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hp_jack_node_type = audio_test_utils.check_hp_or_lineout_plugged(
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audio_facade)
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# Checks headphone and USB nodes are plugged.
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# Let Chrome select the proper I/O nodes.
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# Input is USB, output is headphone.
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audio_test_utils.check_and_set_chrome_active_node_types(
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audio_facade=audio_facade,
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output_type=hp_jack_node_type,
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input_type='USB')
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logging.info('Setting playback data on Chameleon')
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usb_out.set_playback_data(golden_file)
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browser_facade = factory.create_browser_facade()
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apprtc = webrtc_utils.AppRTCController(browser_facade)
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logging.info('Load AppRTC loopback webpage')
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apprtc.new_apprtc_loopback_page()
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logging.info('Start recording from Chameleon.')
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linein.start_recording()
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logging.info('Start playing %s on Cros device',
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golden_file.path)
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usb_out.start_playback()
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time.sleep(self.RECORD_SECONDS)
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linein.stop_recording()
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logging.info('Stopped recording from Chameleon.')
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audio_test_utils.dump_cros_audio_logs(
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host, audio_facade, self.resultsdir, 'after_recording')
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usb_out.stop_playback()
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linein.read_recorded_binary()
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logging.info('Read recorded binary from Chameleon.')
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golden_file.delete()
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recorded_file = os.path.join(self.resultsdir, "recorded.raw")
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logging.info('Saving recorded data to %s', recorded_file)
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linein.save_file(recorded_file)
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diagnostic_path = os.path.join(
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self.resultsdir,
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'audio_diagnostics.txt.after_recording')
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logging.info('Examine diagnostic file at %s', diagnostic_path)
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diag_warning_msg = audio_test_utils.examine_audio_diagnostics(
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diagnostic_path)
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if diag_warning_msg:
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logging.warning(diag_warning_msg)
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# Raise error.TestFail if there is issue.
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audio_test_utils.check_recorded_frequency(
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golden_file, linein, check_artifacts=check_quality)
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