1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
/*
* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "test/pc/e2e/cross_media_metrics_reporter.h"
#include <utility>
#include <vector>
#include "api/stats/rtc_stats.h"
#include "api/stats/rtcstats_objects.h"
#include "api/test/metrics/metric.h"
#include "api/units/timestamp.h"
#include "rtc_base/checks.h"
#include "rtc_base/event.h"
#include "system_wrappers/include/field_trial.h"
#include "test/pc/e2e/metric_metadata_keys.h"
namespace webrtc {
namespace webrtc_pc_e2e {
using ::webrtc::test::ImprovementDirection;
using ::webrtc::test::Unit;
CrossMediaMetricsReporter::CrossMediaMetricsReporter(
test::MetricsLogger* metrics_logger)
: metrics_logger_(metrics_logger) {
RTC_CHECK(metrics_logger_);
}
void CrossMediaMetricsReporter::Start(
absl::string_view test_case_name,
const TrackIdStreamInfoMap* reporter_helper) {
test_case_name_ = std::string(test_case_name);
reporter_helper_ = reporter_helper;
}
void CrossMediaMetricsReporter::OnStatsReports(
absl::string_view pc_label,
const rtc::scoped_refptr<const RTCStatsReport>& report) {
auto inbound_stats = report->GetStatsOfType<RTCInboundRtpStreamStats>();
std::map<std::string, std::vector<const RTCInboundRtpStreamStats*>>
sync_group_stats;
for (const auto& stat : inbound_stats) {
if (stat->estimated_playout_timestamp.value_or(0.) > 0 &&
stat->track_identifier.has_value()) {
sync_group_stats[reporter_helper_
->GetStreamInfoFromTrackId(*stat->track_identifier)
.sync_group]
.push_back(stat);
}
}
MutexLock lock(&mutex_);
for (const auto& pair : sync_group_stats) {
// If there is less than two streams, it is not a sync group.
if (pair.second.size() < 2) {
continue;
}
auto sync_group = std::string(pair.first);
const RTCInboundRtpStreamStats* audio_stat = pair.second[0];
const RTCInboundRtpStreamStats* video_stat = pair.second[1];
RTC_CHECK(pair.second.size() == 2 && audio_stat->kind.has_value() &&
video_stat->kind.has_value() &&
*audio_stat->kind != *video_stat->kind)
<< "Sync group should consist of one audio and one video stream.";
if (*audio_stat->kind == "video") {
std::swap(audio_stat, video_stat);
}
// Stream labels of a sync group are same for all polls, so we need it add
// it only once.
if (stats_info_.find(sync_group) == stats_info_.end()) {
RTC_CHECK(audio_stat->track_identifier.has_value());
RTC_CHECK(video_stat->track_identifier.has_value());
stats_info_[sync_group].audio_stream_info =
reporter_helper_->GetStreamInfoFromTrackId(
*audio_stat->track_identifier);
stats_info_[sync_group].video_stream_info =
reporter_helper_->GetStreamInfoFromTrackId(
*video_stat->track_identifier);
}
double audio_video_playout_diff = *audio_stat->estimated_playout_timestamp -
*video_stat->estimated_playout_timestamp;
if (audio_video_playout_diff > 0) {
stats_info_[sync_group].audio_ahead_ms.AddSample(
audio_video_playout_diff);
stats_info_[sync_group].video_ahead_ms.AddSample(0);
} else {
stats_info_[sync_group].audio_ahead_ms.AddSample(0);
stats_info_[sync_group].video_ahead_ms.AddSample(
std::abs(audio_video_playout_diff));
}
}
}
void CrossMediaMetricsReporter::StopAndReportResults() {
MutexLock lock(&mutex_);
for (const auto& pair : stats_info_) {
const std::string& sync_group = pair.first;
// TODO(bugs.webrtc.org/14757): Remove kExperimentalTestNameMetadataKey.
std::map<std::string, std::string> audio_metric_metadata{
{MetricMetadataKey::kPeerSyncGroupMetadataKey, sync_group},
{MetricMetadataKey::kAudioStreamMetadataKey,
pair.second.audio_stream_info.stream_label},
{MetricMetadataKey::kPeerMetadataKey,
pair.second.audio_stream_info.receiver_peer},
{MetricMetadataKey::kReceiverMetadataKey,
pair.second.audio_stream_info.receiver_peer},
{MetricMetadataKey::kExperimentalTestNameMetadataKey, test_case_name_}};
metrics_logger_->LogMetric(
"audio_ahead_ms",
GetTestCaseName(pair.second.audio_stream_info.stream_label, sync_group),
pair.second.audio_ahead_ms, Unit::kMilliseconds,
webrtc::test::ImprovementDirection::kSmallerIsBetter,
std::move(audio_metric_metadata));
// TODO(bugs.webrtc.org/14757): Remove kExperimentalTestNameMetadataKey.
std::map<std::string, std::string> video_metric_metadata{
{MetricMetadataKey::kPeerSyncGroupMetadataKey, sync_group},
{MetricMetadataKey::kAudioStreamMetadataKey,
pair.second.video_stream_info.stream_label},
{MetricMetadataKey::kPeerMetadataKey,
pair.second.video_stream_info.receiver_peer},
{MetricMetadataKey::kReceiverMetadataKey,
pair.second.video_stream_info.receiver_peer},
{MetricMetadataKey::kExperimentalTestNameMetadataKey, test_case_name_}};
metrics_logger_->LogMetric(
"video_ahead_ms",
GetTestCaseName(pair.second.video_stream_info.stream_label, sync_group),
pair.second.video_ahead_ms, Unit::kMilliseconds,
webrtc::test::ImprovementDirection::kSmallerIsBetter,
std::move(video_metric_metadata));
}
}
std::string CrossMediaMetricsReporter::GetTestCaseName(
const std::string& stream_label,
const std::string& sync_group) const {
return test_case_name_ + "/" + sync_group + "_" + stream_label;
}
} // namespace webrtc_pc_e2e
} // namespace webrtc
|
