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
|
/*
* Copyright (c) 2023 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 "rtc_tools/rtc_event_log_visualizer/analyzer_bindings.h"
#include <cstddef>
#include <cstdint>
#include <iostream>
#include <string>
#include "absl/strings/match.h"
#include "absl/strings/string_view.h"
#include "api/units/time_delta.h"
#include "logging/rtc_event_log/rtc_event_log_parser.h"
#include "rtc_base/numerics/safe_conversions.h"
#include "rtc_base/protobuf_utils.h"
#include "rtc_tools/rtc_event_log_visualizer/analyzer.h"
#include "rtc_tools/rtc_event_log_visualizer/analyzer_common.h"
#include "rtc_tools/rtc_event_log_visualizer/plot_base.h"
#ifdef WEBRTC_ANDROID_PLATFORM_BUILD
#include "external/webrtc/webrtc/rtc_tools/rtc_event_log_visualizer/proto/chart.pb.h"
#else
#include "rtc_tools/rtc_event_log_visualizer/proto/chart.pb.h"
#endif
using webrtc::PacketDirection;
void analyze_rtc_event_log(const char* log_contents,
size_t log_size,
const char* selection,
size_t selection_size,
char* output,
uint32_t* output_size) {
webrtc::ParsedRtcEventLog parsed_log(
webrtc::ParsedRtcEventLog::UnconfiguredHeaderExtensions::kDontParse,
/*allow_incomplete_logs*/ false);
absl::string_view log_view(log_contents, log_size);
auto status = parsed_log.ParseString(log_view);
if (!status.ok()) {
std::cerr << "Failed to parse log: " << status.message() << std::endl;
*output_size = 0;
return;
}
webrtc::AnalyzerConfig config;
config.window_duration_ = webrtc::TimeDelta::Millis(250);
config.step_ = webrtc::TimeDelta::Millis(10);
if (!parsed_log.start_log_events().empty()) {
config.rtc_to_utc_offset_ = parsed_log.start_log_events()[0].utc_time() -
parsed_log.start_log_events()[0].log_time();
}
config.normalize_time_ = true;
config.begin_time_ = parsed_log.first_timestamp();
config.end_time_ = parsed_log.last_timestamp();
if (config.end_time_ < config.begin_time_) {
std::cerr << "Log end time " << config.end_time_.ms()
<< " not after begin time " << config.begin_time_.ms()
<< ". Nothing to analyze. Is the log broken?";
*output_size = 0;
return;
}
absl::string_view selection_view(selection, selection_size);
webrtc::EventLogAnalyzer analyzer(parsed_log, config);
webrtc::PlotCollection collection;
collection.SetCallTimeToUtcOffsetMs(config.CallTimeToUtcOffsetMs());
// Outgoing
if (absl::StrContains(selection_view, "outgoing_packet_sizes")) {
analyzer.CreatePacketGraph(
PacketDirection::kOutgoingPacket,
collection.AppendNewPlot("outgoing_packet_sizes"));
}
if (absl::StrContains(selection_view, "outgoing_stream_bitrate")) {
analyzer.CreateStreamBitrateGraph(
PacketDirection::kOutgoingPacket,
collection.AppendNewPlot("outgoing_stream_bitrate"));
}
if (absl::StrContains(selection_view, "outgoing_bitrate")) {
analyzer.CreateTotalOutgoingBitrateGraph(
collection.AppendNewPlot("outgoing_bitrate"),
/*show_detector_state*/ true,
/*show_alr_state*/ false,
/*show_link_capacity*/ true);
}
if (absl::StrContains(selection_view, "network_delay_feedback")) {
analyzer.CreateNetworkDelayFeedbackGraph(
collection.AppendNewPlot("network_delay_feedback"));
}
if (absl::StrContains(selection_view, "fraction_loss_feedback")) {
analyzer.CreateFractionLossGraph(
collection.AppendNewPlot("fraction_loss_feedback"));
}
// Incoming
if (absl::StrContains(selection_view, "incoming_packet_sizes")) {
analyzer.CreatePacketGraph(
PacketDirection::kIncomingPacket,
collection.AppendNewPlot("incoming_packet_sizes"));
}
if (absl::StrContains(selection_view, "incoming_stream_bitrate")) {
analyzer.CreateStreamBitrateGraph(
PacketDirection::kIncomingPacket,
collection.AppendNewPlot("incoming_stream_bitrate"));
}
if (absl::StrContains(selection_view, "incoming_bitrate")) {
analyzer.CreateTotalIncomingBitrateGraph(
collection.AppendNewPlot("incoming_bitrate"));
}
if (absl::StrContains(selection_view, "incoming_delay")) {
analyzer.CreateIncomingDelayGraph(
collection.AppendNewPlot("incoming_delay"));
}
if (absl::StrContains(selection_view, "incoming_loss_rate")) {
analyzer.CreateIncomingPacketLossGraph(
collection.AppendNewPlot("incoming_loss_rate"));
}
webrtc::analytics::ChartCollection proto_charts;
collection.ExportProtobuf(&proto_charts);
std::string serialized_charts = proto_charts.SerializeAsString();
if (rtc::checked_cast<uint32_t>(serialized_charts.size()) > *output_size) {
std::cerr << "Serialized charts larger than available output buffer: "
<< serialized_charts.size() << " vs " << *output_size;
*output_size = 0;
return;
}
memcpy(output, serialized_charts.data(), serialized_charts.size());
*output_size = rtc::checked_cast<uint32_t>(serialized_charts.size());
}
|
