| # 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. |
| |
| import logging |
| import os |
| |
| from autotest_lib.client.bin import test |
| from autotest_lib.client.bin import utils |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.common_lib.cros import chrome |
| from autotest_lib.client.cros.video import device_capability |
| from autotest_lib.client.cros.video import helper_logger |
| |
| EXTRA_BROWSER_ARGS = ['--use-fake-ui-for-media-stream'] |
| |
| # Polling timeout. |
| TIMEOUT = 90 |
| |
| |
| class video_WebRtcPeerConnectionWithCamera(test.test): |
| """Tests a full WebRTC call with a real webcam.""" |
| version = 1 |
| |
| def start_loopback(self, cr, video_codec): |
| """Opens WebRTC loopback page. |
| |
| @param cr: Autotest Chrome instance. |
| @param video_codec: video codec to use. |
| """ |
| cr.browser.platform.SetHTTPServerDirectories(self.bindir) |
| |
| self.tab = cr.browser.tabs[0] |
| self.tab.Navigate(cr.browser.platform.http_server.UrlOf( |
| os.path.join(self.bindir, 'loopback.html'))) |
| self.tab.WaitForDocumentReadyStateToBeComplete() |
| self.tab.EvaluateJavaScript( |
| "testWebRtcLoopbackCall('%s')" % video_codec) |
| |
| def wait_test_completed(self, timeout_secs): |
| """Waits until the test is done. |
| |
| @param timeout_secs Max time to wait in seconds. |
| |
| @raises TestError on timeout, or javascript eval fails. |
| """ |
| def _test_done(): |
| status = self.tab.EvaluateJavaScript('getStatus()') |
| logging.debug(status); |
| return status != 'running' |
| |
| utils.poll_for_condition( |
| _test_done, timeout=timeout_secs, sleep_interval=1, |
| desc='loopback.html reports itself as finished') |
| |
| @helper_logger.video_log_wrapper |
| def run_once(self, video_codec, capability): |
| """Runs the video_WebRtcPeerConnectionWithCamera test. |
| |
| @param video_codec: video codec to use. |
| @param capability: Capability required for executing this test. |
| """ |
| device_capability.DeviceCapability().ensure_capability(capability) |
| with chrome.Chrome(extra_browser_args=EXTRA_BROWSER_ARGS +\ |
| [helper_logger.chrome_vmodule_flag()], |
| init_network_controller=True) as cr: |
| self.start_loopback(cr, video_codec) |
| self.wait_test_completed(TIMEOUT) |
| self.print_loopback_result(video_codec) |
| |
| def print_loopback_result(self, video_codec): |
| """Prints loopback results (unless we failed to retrieve them). |
| |
| @param video_codec: video codec to use. |
| @raises TestError if the test failed outright. |
| """ |
| status = self.tab.EvaluateJavaScript('getStatus()') |
| if status != 'ok-done': |
| raise error.TestFail('Failed: %s' % status) |
| |
| results = self.tab.EvaluateJavaScript('getResults()') |
| logging.info('Camera Type: %s', results['cameraType']) |
| logging.info('PeerConnectionstats: %s', results['peerConnectionStats']) |
| logging.info('FrameStats: %s', results['frameStats']) |
| |
| pc_stats = results.get('peerConnectionStats') |
| if not pc_stats: |
| raise error.TestFail('Peer Connection Stats is empty') |
| self.output_perf_value( |
| description='max_input_fps_%s' % video_codec, |
| value=pc_stats[1], units='fps', higher_is_better=True) |
| self.output_perf_value( |
| description='max_sent_fps_%s' % video_codec, |
| value=pc_stats[4], units='fps', higher_is_better=True) |
| |
| frame_stats = results.get('frameStats') |
| if not frame_stats: |
| raise error.TestFail('Frame Stats is empty') |
| |
| self.output_perf_value( |
| description='black_frames_%s' % video_codec, |
| value=frame_stats['numBlackFrames'], |
| units='frames', higher_is_better=False) |
| self.output_perf_value( |
| description='frozen_frames_%s' % video_codec, |
| value=frame_stats['numFrozenFrames'], |
| units='frames', higher_is_better=False) |
| self.output_perf_value( |
| description='total_num_frames_%s' % video_codec, |
| value=frame_stats['numFrames'], |
| units='frames', higher_is_better=True) |
