text: // 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.
  
  #ifndef CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_BROWSERTEST_PERF_H_
  #define CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_BROWSERTEST_PERF_H_
  
  #include <string>
  
  namespace base {
  class DictionaryValue;
  }
  
  namespace test {
  
  // These functions takes parsed data (on one peer connection) from the
  // peerConnectionDataStore object that is backing webrtc-internals and prints
  // metrics they consider interesting using testing/perf/perf_test.h primitives.
  // The idea is to put as many webrtc-related metrics as possible into the
  // dashboard and thereby track it for regressions.
  //
  // These functions expect to run under googletest and will use EXPECT_ and
  // ASSERT_ macros to signal failure. They take as argument one peer connection's
  // stats data and a |modifier| to append to each result bucket. For instance, if
  // the modifier is '_oneway', the rtt stat will be logged as goog_rtt in
  // the video_tx_oneway bucket.
  // If |video_codec| is a non-empty string, the codec name is appended last for
  // video metrics, e.g. 'video_tx_oneway_VP9'.
  void PrintBweForVideoMetrics(const base::DictionaryValue& pc_dict,
                               const std::string& modifier,
                               const std::string& video_codec);
  void PrintMetricsForAllStreams(const base::DictionaryValue& pc_dict,
                                 const std::string& modifier,
                                 const std::string& video_codec);
  void PrintMetricsForSendStreams(const base::DictionaryValue& pc_dict,
                                  const std::string& modifier,
                                  const std::string& video_codec);
  void PrintMetricsForRecvStreams(const base::DictionaryValue& pc_dict,
                                  const std::string& modifier,
                                  const std::string& video_codec);
  
  bool WriteCompareVideosOutputAsHistogram(const std::string& test_label,
                                           const std::string& output);
  
  }  // namespace test
  
  #endif  // CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_BROWSERTEST_PERF_H_
  