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