content/browser/renderer_host/media/media_stream_track_metrics_host.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/renderer_host/media/media_stream_track_metrics_host.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "content/common/media/media_stream_track_metrics_host_messages.h"
   9
  10 // We use a histogram with a maximum bucket of 16 hours to infinity
  11 // for track durations.
  12 #define UMA_HISTOGRAM_TIMES_16H(name, sample)                        \
  13   UMA_HISTOGRAM_CUSTOM_TIMES(name, sample,                           \
  14                              base::TimeDelta::FromMilliseconds(100), \
  15                              base::TimeDelta::FromHours(16),         \
  16                              50);
  17
  18 namespace content {
  19
  20 MediaStreamTrackMetricsHost::MediaStreamTrackMetricsHost()
  21     : BrowserMessageFilter(MediaStreamTrackMetricsHostMsgStart) {
  22 }
  23
  24 MediaStreamTrackMetricsHost::~MediaStreamTrackMetricsHost() {
  25   // Our render process has exited. We won't receive any more IPC
  26   // messages from it. Assume all tracks ended now.
  27   for (TrackMap::iterator it = tracks_.begin();
  28        it != tracks_.end();
  29        ++it) {
  30     TrackInfo& info = it->second;
  31     ReportDuration(info);
  32   }
  33   tracks_.clear();
  34 }
  35
  36 bool MediaStreamTrackMetricsHost::OnMessageReceived(
  37     const IPC::Message& message) {
  38   bool handled = true;
  39
  40   IPC_BEGIN_MESSAGE_MAP(MediaStreamTrackMetricsHost, message)
  41     IPC_MESSAGE_HANDLER(MediaStreamTrackMetricsHost_AddTrack, OnAddTrack)
  42     IPC_MESSAGE_HANDLER(MediaStreamTrackMetricsHost_RemoveTrack, OnRemoveTrack)
  43     IPC_MESSAGE_UNHANDLED(handled = false)
  44   IPC_END_MESSAGE_MAP()
  45
  46   return handled;
  47 }
  48
  49 void MediaStreamTrackMetricsHost::OnAddTrack(uint64 id,
  50                                              bool is_audio,
  51                                              bool is_remote) {
  52   if (tracks_.find(id) != tracks_.end())
  53     return;
  54
  55   TrackInfo info = {is_audio, is_remote, base::TimeTicks::Now()};
  56   tracks_[id] = info;
  57 }
  58
  59 void MediaStreamTrackMetricsHost::OnRemoveTrack(uint64 id) {
  60   if (tracks_.find(id) == tracks_.end())
  61     return;
  62
  63   TrackInfo& info = tracks_[id];
  64   ReportDuration(info);
  65   tracks_.erase(id);
  66 }
  67
  68 void MediaStreamTrackMetricsHost::ReportDuration(const TrackInfo& info) {
  69   base::TimeDelta duration = base::TimeTicks::Now() - info.timestamp;
  70   if (info.is_remote) {
  71     if (info.is_audio) {
  72       DVLOG(3) << "WebRTC.ReceivedAudioTrackDuration: " << duration.InSeconds();
  73       UMA_HISTOGRAM_TIMES_16H("WebRTC.ReceivedAudioTrackDuration", duration);
  74     } else {
  75       DVLOG(3) << "WebRTC.ReceivedVideoTrackDuration: " << duration.InSeconds();
  76       UMA_HISTOGRAM_TIMES_16H("WebRTC.ReceivedVideoTrackDuration", duration);
  77     }
  78   } else {
  79     if (info.is_audio) {
  80       DVLOG(3) << "WebRTC.SentAudioTrackDuration: " << duration.InSeconds();
  81       UMA_HISTOGRAM_TIMES_16H("WebRTC.SentAudioTrackDuration", duration);
  82     } else {
  83       DVLOG(3) << "WebRTC.SentVideoTrackDuration: " << duration.InSeconds();
  84       UMA_HISTOGRAM_TIMES_16H("WebRTC.SentVideoTrackDuration", duration);
  85     }
  86   }
  87 }
  88
  89 }  // namespace content