98 lines
3.8 KiB
Python
98 lines
3.8 KiB
Python
# Copyright 2015 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 USB playback 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.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_ids
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from autotest_lib.client.cros.chameleon import chameleon_audio_helper
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from autotest_lib.server.cros.audio import audio_test
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class audio_AudioBasicUSBPlayback(audio_test.AudioTest):
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"""Server side USB playback audio test.
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This test talks to a Chameleon board and a Cros device to verify
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USB audio playback function of the Cros device.
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"""
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version = 1
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RECORD_SECONDS = 5
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def run_once(self, suspend=False):
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"""Runs Basic Audio USB playback test.
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@param suspend: True for suspend the device before playback.
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False for not suspend.
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"""
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golden_file = audio_test_data.GenerateAudioTestData(
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path=os.path.join(self.bindir, 'fix_1k_440_16.wav'),
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duration_secs=6,
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frequencies=[1000, 440])
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source = self.widget_factory.create_widget(
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chameleon_audio_ids.CrosIds.USBOUT)
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recorder = self.widget_factory.create_widget(
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chameleon_audio_ids.ChameleonIds.USBIN)
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binder = self.widget_factory.create_binder(source, recorder)
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with chameleon_audio_helper.bind_widgets(binder):
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# Checks the node selected by cras is correct.
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audio_test_utils.dump_cros_audio_logs(
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self.host, self.facade, self.resultsdir, 'after_binding')
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audio_test_utils.check_and_set_chrome_active_node_types(
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self.facade, 'USB', None)
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audio_test_utils.dump_cros_audio_logs(
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self.host, self.facade, self.resultsdir, 'after_select')
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audio_test_utils.check_audio_nodes(self.facade, (['USB'], None))
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logging.info('Setting playback data on Cros device')
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self.facade.set_selected_output_volume(70)
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source.set_playback_data(golden_file)
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if suspend:
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audio_test_utils.suspend_resume_and_verify(
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self.host, self.factory)
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# Explicitly select the node as there is a known issue
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# that the selected node might change after a suspension.
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# We should remove this after the issue is addressed
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# (crbug:987529).
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self.facade.set_selected_node_types(['USB'], None)
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audio_test_utils.check_audio_nodes(self.facade,
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(['USB'], None))
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# Starts recording from Chameleon, waits for some time, and then
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# starts playing from Cros device.
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logging.info('Start recording from Chameleon.')
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recorder.start_recording()
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logging.info('Start playing %s on Cros device', golden_file.path)
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source.start_playback()
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time.sleep(self.RECORD_SECONDS)
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recorder.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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self.host, self.facade, self.resultsdir, 'after_recording')
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recorder.read_recorded_binary()
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logging.info('Read recorded binary from Chameleon.')
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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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recorder.save_file(recorded_file)
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audio_test_utils.check_recorded_frequency(golden_file, recorder)
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