31 lines
1.1 KiB
Python
31 lines
1.1 KiB
Python
# Copyright 2013 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 metrics import media
|
|
from telemetry.page import page_measurement
|
|
|
|
class Media(page_measurement.PageMeasurement):
|
|
"""The MediaMeasurement class gathers media-related metrics on a page set.
|
|
|
|
Media metrics recorded are controlled by metrics/media.js. At the end of the
|
|
test each metric for every media element in the page are reported.
|
|
"""
|
|
def __init__(self):
|
|
super(Media, self).__init__('media_metrics')
|
|
self._media_metric = None
|
|
|
|
def results_are_the_same_on_every_page(self):
|
|
"""Results can vary from page to page based on media events taking place."""
|
|
return False
|
|
|
|
def DidNavigateToPage(self, page, tab):
|
|
"""Override to do operations right after the page is navigated."""
|
|
self._media_metric = media.MediaMetric(tab)
|
|
self._media_metric.Start(page, tab)
|
|
|
|
def MeasurePage(self, page, tab, results):
|
|
"""Measure the page's performance."""
|
|
self._media_metric.Stop(page, tab)
|
|
self._media_metric.AddResults(tab, results)
|