| # Copyright 2014 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| from telemetry.page import legacy_page_test |
| |
| from metrics import cpu |
| from metrics import media |
| from metrics import power |
| from metrics import webrtc_stats |
| |
| |
| class WebRTC(legacy_page_test.LegacyPageTest): |
| """Gathers WebRTC-related metrics on a page set.""" |
| |
| def __init__(self, particular_metrics=None): |
| """Create the measurement and include selected stats. |
| |
| Args: |
| particular_metrics: A list of the stats to include (see webrtc_stats.py |
| for a list of valid names) or None to select all metrics. |
| """ |
| super(WebRTC, self).__init__() |
| self._cpu_metric = None |
| self._media_metric = None |
| self._power_metric = None |
| self._particular_metrics = particular_metrics |
| self._webrtc_stats_metric = None |
| |
| def WillStartBrowser(self, platform): |
| self._power_metric = power.PowerMetric(platform) |
| |
| def DidStartBrowser(self, browser): |
| self._cpu_metric = cpu.CpuMetric(browser) |
| self._webrtc_stats_metric = webrtc_stats.WebRtcStatisticsMetric( |
| self._particular_metrics) |
| |
| def DidNavigateToPage(self, page, tab): |
| self._cpu_metric.Start(page, tab) |
| self._media_metric = media.MediaMetric(tab) |
| self._media_metric.Start(page, tab) |
| self._power_metric.Start(page, tab) |
| self._webrtc_stats_metric.Start(page, tab) |
| |
| def CustomizeBrowserOptions(self, options): |
| options.AppendExtraBrowserArgs('--use-fake-device-for-media-stream') |
| options.AppendExtraBrowserArgs('--use-fake-ui-for-media-stream') |
| power.PowerMetric.CustomizeBrowserOptions(options) |
| |
| def ValidateAndMeasurePage(self, page, tab, results): |
| """Measure the page's performance.""" |
| self._cpu_metric.Stop(page, tab) |
| self._cpu_metric.AddResults(tab, results) |
| |
| # Add all media metrics except bytes (those aren't hooked up for WebRTC |
| # video tags). |
| exclude_metrics = ['decoded_video_bytes', 'decoded_audio_bytes'] |
| self._media_metric.Stop(page, tab) |
| self._media_metric.AddResults(tab, results, exclude_metrics=exclude_metrics) |
| |
| self._power_metric.Stop(page, tab) |
| self._power_metric.AddResults(tab, results) |
| |
| self._webrtc_stats_metric.Stop(page, tab) |
| self._webrtc_stats_metric.AddResults(tab, results) |
| |
| def DidRunPage(self, platform): |
| del platform # unused |
| self._power_metric.Close() |
