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1 /* | |
2 * Copyright 2012 The WebRTC project authors. All Rights Reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #include "webrtc/api/statscollector.h" | |
12 | |
13 #include <memory> | |
14 #include <utility> | |
15 #include <vector> | |
16 | |
17 #include "webrtc/api/peerconnection.h" | |
18 #include "webrtc/base/base64.h" | |
19 #include "webrtc/base/checks.h" | |
20 #include "webrtc/pc/channel.h" | |
21 | |
22 namespace webrtc { | |
23 namespace { | |
24 | |
25 // The following is the enum RTCStatsIceCandidateType from | |
26 // http://w3c.github.io/webrtc-stats/#rtcstatsicecandidatetype-enum such that | |
27 // our stats report for ice candidate type could conform to that. | |
28 const char STATSREPORT_LOCAL_PORT_TYPE[] = "host"; | |
29 const char STATSREPORT_STUN_PORT_TYPE[] = "serverreflexive"; | |
30 const char STATSREPORT_PRFLX_PORT_TYPE[] = "peerreflexive"; | |
31 const char STATSREPORT_RELAY_PORT_TYPE[] = "relayed"; | |
32 | |
33 // Strings used by the stats collector to report adapter types. This fits the | |
34 // general stype of http://w3c.github.io/webrtc-stats than what | |
35 // AdapterTypeToString does. | |
36 const char* STATSREPORT_ADAPTER_TYPE_ETHERNET = "lan"; | |
37 const char* STATSREPORT_ADAPTER_TYPE_WIFI = "wlan"; | |
38 const char* STATSREPORT_ADAPTER_TYPE_WWAN = "wwan"; | |
39 const char* STATSREPORT_ADAPTER_TYPE_VPN = "vpn"; | |
40 const char* STATSREPORT_ADAPTER_TYPE_LOOPBACK = "loopback"; | |
41 | |
42 template<typename ValueType> | |
43 struct TypeForAdd { | |
44 const StatsReport::StatsValueName name; | |
45 const ValueType& value; | |
46 }; | |
47 | |
48 typedef TypeForAdd<bool> BoolForAdd; | |
49 typedef TypeForAdd<float> FloatForAdd; | |
50 typedef TypeForAdd<int64_t> Int64ForAdd; | |
51 typedef TypeForAdd<int> IntForAdd; | |
52 | |
53 StatsReport::Id GetTransportIdFromProxy(const ProxyTransportMap& map, | |
54 const std::string& proxy) { | |
55 RTC_DCHECK(!proxy.empty()); | |
56 auto found = map.find(proxy); | |
57 if (found == map.end()) { | |
58 return StatsReport::Id(); | |
59 } | |
60 | |
61 return StatsReport::NewComponentId( | |
62 found->second, cricket::ICE_CANDIDATE_COMPONENT_RTP); | |
63 } | |
64 | |
65 StatsReport* AddTrackReport(StatsCollection* reports, | |
66 const std::string& track_id) { | |
67 // Adds an empty track report. | |
68 StatsReport::Id id( | |
69 StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack, track_id)); | |
70 StatsReport* report = reports->ReplaceOrAddNew(id); | |
71 report->AddString(StatsReport::kStatsValueNameTrackId, track_id); | |
72 return report; | |
73 } | |
74 | |
75 template <class TrackVector> | |
76 void CreateTrackReports(const TrackVector& tracks, StatsCollection* reports, | |
77 TrackIdMap& track_ids) { | |
78 for (const auto& track : tracks) { | |
79 const std::string& track_id = track->id(); | |
80 StatsReport* report = AddTrackReport(reports, track_id); | |
81 RTC_DCHECK(report != nullptr); | |
82 track_ids[track_id] = report; | |
83 } | |
84 } | |
85 | |
86 void ExtractCommonSendProperties(const cricket::MediaSenderInfo& info, | |
87 StatsReport* report) { | |
88 report->AddString(StatsReport::kStatsValueNameCodecName, info.codec_name); | |
89 report->AddInt64(StatsReport::kStatsValueNameBytesSent, info.bytes_sent); | |
90 if (info.rtt_ms >= 0) { | |
91 report->AddInt64(StatsReport::kStatsValueNameRtt, info.rtt_ms); | |
92 } | |
93 } | |
94 | |
95 void ExtractCommonReceiveProperties(const cricket::MediaReceiverInfo& info, | |
96 StatsReport* report) { | |
97 report->AddString(StatsReport::kStatsValueNameCodecName, info.codec_name); | |
98 } | |
99 | |
100 void SetAudioProcessingStats(StatsReport* report, | |
101 bool typing_noise_detected, | |
102 int echo_return_loss, | |
103 int echo_return_loss_enhancement, | |
104 int echo_delay_median_ms, | |
105 float aec_quality_min, | |
106 int echo_delay_std_ms, | |
107 float residual_echo_likelihood) { | |
108 report->AddBoolean(StatsReport::kStatsValueNameTypingNoiseState, | |
109 typing_noise_detected); | |
110 if (aec_quality_min >= 0.0f) { | |
111 report->AddFloat(StatsReport::kStatsValueNameEchoCancellationQualityMin, | |
112 aec_quality_min); | |
113 } | |
114 const IntForAdd ints[] = { | |
115 { StatsReport::kStatsValueNameEchoDelayMedian, echo_delay_median_ms }, | |
116 { StatsReport::kStatsValueNameEchoDelayStdDev, echo_delay_std_ms }, | |
117 }; | |
118 for (const auto& i : ints) { | |
119 if (i.value >= 0) { | |
120 report->AddInt(i.name, i.value); | |
121 } | |
122 } | |
123 // These can take on valid negative values. | |
124 report->AddInt(StatsReport::kStatsValueNameEchoReturnLoss, echo_return_loss); | |
125 report->AddInt(StatsReport::kStatsValueNameEchoReturnLossEnhancement, | |
126 echo_return_loss_enhancement); | |
127 if (residual_echo_likelihood >= 0.0f) { | |
128 report->AddFloat(StatsReport::kStatsValueNameResidualEchoLikelihood, | |
129 residual_echo_likelihood); | |
130 } | |
131 } | |
132 | |
133 void ExtractStats(const cricket::VoiceReceiverInfo& info, StatsReport* report) { | |
134 ExtractCommonReceiveProperties(info, report); | |
135 const FloatForAdd floats[] = { | |
136 { StatsReport::kStatsValueNameExpandRate, info.expand_rate }, | |
137 { StatsReport::kStatsValueNameSecondaryDecodedRate, | |
138 info.secondary_decoded_rate }, | |
139 { StatsReport::kStatsValueNameSpeechExpandRate, info.speech_expand_rate }, | |
140 { StatsReport::kStatsValueNameAccelerateRate, info.accelerate_rate }, | |
141 { StatsReport::kStatsValueNamePreemptiveExpandRate, | |
142 info.preemptive_expand_rate }, | |
143 }; | |
144 | |
145 const IntForAdd ints[] = { | |
146 { StatsReport::kStatsValueNameCurrentDelayMs, info.delay_estimate_ms }, | |
147 { StatsReport::kStatsValueNameDecodingCNG, info.decoding_cng }, | |
148 { StatsReport::kStatsValueNameDecodingCTN, info.decoding_calls_to_neteq }, | |
149 { StatsReport::kStatsValueNameDecodingCTSG, | |
150 info.decoding_calls_to_silence_generator }, | |
151 { StatsReport::kStatsValueNameDecodingMutedOutput, | |
152 info.decoding_muted_output }, | |
153 { StatsReport::kStatsValueNameDecodingNormal, info.decoding_normal }, | |
154 { StatsReport::kStatsValueNameDecodingPLC, info.decoding_plc }, | |
155 { StatsReport::kStatsValueNameDecodingPLCCNG, info.decoding_plc_cng }, | |
156 { StatsReport::kStatsValueNameJitterBufferMs, info.jitter_buffer_ms }, | |
157 { StatsReport::kStatsValueNameJitterReceived, info.jitter_ms }, | |
158 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
159 { StatsReport::kStatsValueNamePacketsReceived, info.packets_rcvd }, | |
160 { StatsReport::kStatsValueNamePreferredJitterBufferMs, | |
161 info.jitter_buffer_preferred_ms }, | |
162 }; | |
163 | |
164 for (const auto& f : floats) | |
165 report->AddFloat(f.name, f.value); | |
166 | |
167 for (const auto& i : ints) | |
168 report->AddInt(i.name, i.value); | |
169 if (info.audio_level >= 0) { | |
170 report->AddInt(StatsReport::kStatsValueNameAudioOutputLevel, | |
171 info.audio_level); | |
172 } | |
173 | |
174 report->AddInt64(StatsReport::kStatsValueNameBytesReceived, | |
175 info.bytes_rcvd); | |
176 if (info.capture_start_ntp_time_ms >= 0) { | |
177 report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs, | |
178 info.capture_start_ntp_time_ms); | |
179 } | |
180 report->AddString(StatsReport::kStatsValueNameMediaType, "audio"); | |
181 } | |
182 | |
183 void ExtractStats(const cricket::VoiceSenderInfo& info, StatsReport* report) { | |
184 ExtractCommonSendProperties(info, report); | |
185 | |
186 SetAudioProcessingStats( | |
187 report, info.typing_noise_detected, info.echo_return_loss, | |
188 info.echo_return_loss_enhancement, info.echo_delay_median_ms, | |
189 info.aec_quality_min, info.echo_delay_std_ms, | |
190 info.residual_echo_likelihood); | |
191 | |
192 RTC_DCHECK_GE(info.audio_level, 0); | |
193 const IntForAdd ints[] = { | |
194 { StatsReport::kStatsValueNameAudioInputLevel, info.audio_level}, | |
195 { StatsReport::kStatsValueNameJitterReceived, info.jitter_ms }, | |
196 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
197 { StatsReport::kStatsValueNamePacketsSent, info.packets_sent }, | |
198 }; | |
199 | |
200 for (const auto& i : ints) { | |
201 if (i.value >= 0) { | |
202 report->AddInt(i.name, i.value); | |
203 } | |
204 } | |
205 report->AddString(StatsReport::kStatsValueNameMediaType, "audio"); | |
206 } | |
207 | |
208 void ExtractStats(const cricket::VideoReceiverInfo& info, StatsReport* report) { | |
209 ExtractCommonReceiveProperties(info, report); | |
210 report->AddString(StatsReport::kStatsValueNameCodecImplementationName, | |
211 info.decoder_implementation_name); | |
212 report->AddInt64(StatsReport::kStatsValueNameBytesReceived, | |
213 info.bytes_rcvd); | |
214 if (info.capture_start_ntp_time_ms >= 0) { | |
215 report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs, | |
216 info.capture_start_ntp_time_ms); | |
217 } | |
218 const IntForAdd ints[] = { | |
219 { StatsReport::kStatsValueNameCurrentDelayMs, info.current_delay_ms }, | |
220 { StatsReport::kStatsValueNameDecodeMs, info.decode_ms }, | |
221 { StatsReport::kStatsValueNameFirsSent, info.firs_sent }, | |
222 { StatsReport::kStatsValueNameFrameHeightReceived, info.frame_height }, | |
223 { StatsReport::kStatsValueNameFrameRateDecoded, info.framerate_decoded }, | |
224 { StatsReport::kStatsValueNameFrameRateOutput, info.framerate_output }, | |
225 { StatsReport::kStatsValueNameFrameRateReceived, info.framerate_rcvd }, | |
226 { StatsReport::kStatsValueNameFrameWidthReceived, info.frame_width }, | |
227 { StatsReport::kStatsValueNameJitterBufferMs, info.jitter_buffer_ms }, | |
228 { StatsReport::kStatsValueNameMaxDecodeMs, info.max_decode_ms }, | |
229 { StatsReport::kStatsValueNameMinPlayoutDelayMs, | |
230 info.min_playout_delay_ms }, | |
231 { StatsReport::kStatsValueNameNacksSent, info.nacks_sent }, | |
232 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
233 { StatsReport::kStatsValueNamePacketsReceived, info.packets_rcvd }, | |
234 { StatsReport::kStatsValueNamePlisSent, info.plis_sent }, | |
235 { StatsReport::kStatsValueNameRenderDelayMs, info.render_delay_ms }, | |
236 { StatsReport::kStatsValueNameTargetDelayMs, info.target_delay_ms }, | |
237 { StatsReport::kStatsValueNameFramesDecoded, info.frames_decoded }, | |
238 }; | |
239 | |
240 for (const auto& i : ints) | |
241 report->AddInt(i.name, i.value); | |
242 report->AddString(StatsReport::kStatsValueNameMediaType, "video"); | |
243 } | |
244 | |
245 void ExtractStats(const cricket::VideoSenderInfo& info, StatsReport* report) { | |
246 ExtractCommonSendProperties(info, report); | |
247 | |
248 report->AddString(StatsReport::kStatsValueNameCodecImplementationName, | |
249 info.encoder_implementation_name); | |
250 report->AddBoolean(StatsReport::kStatsValueNameBandwidthLimitedResolution, | |
251 (info.adapt_reason & 0x2) > 0); | |
252 report->AddBoolean(StatsReport::kStatsValueNameCpuLimitedResolution, | |
253 (info.adapt_reason & 0x1) > 0); | |
254 if (info.qp_sum) | |
255 report->AddInt(StatsReport::kStatsValueNameQpSum, *info.qp_sum); | |
256 | |
257 const IntForAdd ints[] = { | |
258 { StatsReport::kStatsValueNameAdaptationChanges, info.adapt_changes }, | |
259 { StatsReport::kStatsValueNameAvgEncodeMs, info.avg_encode_ms }, | |
260 { StatsReport::kStatsValueNameEncodeUsagePercent, | |
261 info.encode_usage_percent }, | |
262 { StatsReport::kStatsValueNameFirsReceived, info.firs_rcvd }, | |
263 { StatsReport::kStatsValueNameFrameHeightSent, info.send_frame_height }, | |
264 { StatsReport::kStatsValueNameFrameRateInput, info.framerate_input }, | |
265 { StatsReport::kStatsValueNameFrameRateSent, info.framerate_sent }, | |
266 { StatsReport::kStatsValueNameFrameWidthSent, info.send_frame_width }, | |
267 { StatsReport::kStatsValueNameNacksReceived, info.nacks_rcvd }, | |
268 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
269 { StatsReport::kStatsValueNamePacketsSent, info.packets_sent }, | |
270 { StatsReport::kStatsValueNamePlisReceived, info.plis_rcvd }, | |
271 { StatsReport::kStatsValueNameFramesEncoded, info.frames_encoded }, | |
272 }; | |
273 | |
274 for (const auto& i : ints) | |
275 report->AddInt(i.name, i.value); | |
276 report->AddString(StatsReport::kStatsValueNameMediaType, "video"); | |
277 } | |
278 | |
279 void ExtractStats(const cricket::BandwidthEstimationInfo& info, | |
280 double stats_gathering_started, | |
281 PeerConnectionInterface::StatsOutputLevel level, | |
282 StatsReport* report) { | |
283 RTC_DCHECK(report->type() == StatsReport::kStatsReportTypeBwe); | |
284 | |
285 report->set_timestamp(stats_gathering_started); | |
286 const IntForAdd ints[] = { | |
287 { StatsReport::kStatsValueNameAvailableSendBandwidth, | |
288 info.available_send_bandwidth }, | |
289 { StatsReport::kStatsValueNameAvailableReceiveBandwidth, | |
290 info.available_recv_bandwidth }, | |
291 { StatsReport::kStatsValueNameTargetEncBitrate, info.target_enc_bitrate }, | |
292 { StatsReport::kStatsValueNameActualEncBitrate, info.actual_enc_bitrate }, | |
293 { StatsReport::kStatsValueNameRetransmitBitrate, info.retransmit_bitrate }, | |
294 { StatsReport::kStatsValueNameTransmitBitrate, info.transmit_bitrate }, | |
295 }; | |
296 for (const auto& i : ints) | |
297 report->AddInt(i.name, i.value); | |
298 report->AddInt64(StatsReport::kStatsValueNameBucketDelay, info.bucket_delay); | |
299 } | |
300 | |
301 void ExtractRemoteStats(const cricket::MediaSenderInfo& info, | |
302 StatsReport* report) { | |
303 report->set_timestamp(info.remote_stats[0].timestamp); | |
304 // TODO(hta): Extract some stats here. | |
305 } | |
306 | |
307 void ExtractRemoteStats(const cricket::MediaReceiverInfo& info, | |
308 StatsReport* report) { | |
309 report->set_timestamp(info.remote_stats[0].timestamp); | |
310 // TODO(hta): Extract some stats here. | |
311 } | |
312 | |
313 // Template to extract stats from a data vector. | |
314 // In order to use the template, the functions that are called from it, | |
315 // ExtractStats and ExtractRemoteStats, must be defined and overloaded | |
316 // for each type. | |
317 template<typename T> | |
318 void ExtractStatsFromList(const std::vector<T>& data, | |
319 const StatsReport::Id& transport_id, | |
320 StatsCollector* collector, | |
321 StatsReport::Direction direction) { | |
322 for (const auto& d : data) { | |
323 uint32_t ssrc = d.ssrc(); | |
324 // Each track can have stats for both local and remote objects. | |
325 // TODO(hta): Handle the case of multiple SSRCs per object. | |
326 StatsReport* report = collector->PrepareReport(true, ssrc, transport_id, | |
327 direction); | |
328 if (report) | |
329 ExtractStats(d, report); | |
330 | |
331 if (!d.remote_stats.empty()) { | |
332 report = collector->PrepareReport(false, ssrc, transport_id, direction); | |
333 if (report) | |
334 ExtractRemoteStats(d, report); | |
335 } | |
336 } | |
337 } | |
338 | |
339 } // namespace | |
340 | |
341 const char* IceCandidateTypeToStatsType(const std::string& candidate_type) { | |
342 if (candidate_type == cricket::LOCAL_PORT_TYPE) { | |
343 return STATSREPORT_LOCAL_PORT_TYPE; | |
344 } | |
345 if (candidate_type == cricket::STUN_PORT_TYPE) { | |
346 return STATSREPORT_STUN_PORT_TYPE; | |
347 } | |
348 if (candidate_type == cricket::PRFLX_PORT_TYPE) { | |
349 return STATSREPORT_PRFLX_PORT_TYPE; | |
350 } | |
351 if (candidate_type == cricket::RELAY_PORT_TYPE) { | |
352 return STATSREPORT_RELAY_PORT_TYPE; | |
353 } | |
354 RTC_DCHECK(false); | |
355 return "unknown"; | |
356 } | |
357 | |
358 const char* AdapterTypeToStatsType(rtc::AdapterType type) { | |
359 switch (type) { | |
360 case rtc::ADAPTER_TYPE_UNKNOWN: | |
361 return "unknown"; | |
362 case rtc::ADAPTER_TYPE_ETHERNET: | |
363 return STATSREPORT_ADAPTER_TYPE_ETHERNET; | |
364 case rtc::ADAPTER_TYPE_WIFI: | |
365 return STATSREPORT_ADAPTER_TYPE_WIFI; | |
366 case rtc::ADAPTER_TYPE_CELLULAR: | |
367 return STATSREPORT_ADAPTER_TYPE_WWAN; | |
368 case rtc::ADAPTER_TYPE_VPN: | |
369 return STATSREPORT_ADAPTER_TYPE_VPN; | |
370 case rtc::ADAPTER_TYPE_LOOPBACK: | |
371 return STATSREPORT_ADAPTER_TYPE_LOOPBACK; | |
372 default: | |
373 RTC_DCHECK(false); | |
374 return ""; | |
375 } | |
376 } | |
377 | |
378 StatsCollector::StatsCollector(PeerConnection* pc) | |
379 : pc_(pc), stats_gathering_started_(0) { | |
380 RTC_DCHECK(pc_); | |
381 } | |
382 | |
383 StatsCollector::~StatsCollector() { | |
384 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
385 } | |
386 | |
387 // Wallclock time in ms. | |
388 double StatsCollector::GetTimeNow() { | |
389 return rtc::TimeUTCMicros() / | |
390 static_cast<double>(rtc::kNumMicrosecsPerMillisec); | |
391 } | |
392 | |
393 // Adds a MediaStream with tracks that can be used as a |selector| in a call | |
394 // to GetStats. | |
395 void StatsCollector::AddStream(MediaStreamInterface* stream) { | |
396 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
397 RTC_DCHECK(stream != NULL); | |
398 | |
399 CreateTrackReports<AudioTrackVector>(stream->GetAudioTracks(), | |
400 &reports_, track_ids_); | |
401 CreateTrackReports<VideoTrackVector>(stream->GetVideoTracks(), | |
402 &reports_, track_ids_); | |
403 } | |
404 | |
405 void StatsCollector::AddLocalAudioTrack(AudioTrackInterface* audio_track, | |
406 uint32_t ssrc) { | |
407 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
408 RTC_DCHECK(audio_track != NULL); | |
409 #if RTC_DCHECK_IS_ON | |
410 for (const auto& track : local_audio_tracks_) | |
411 RTC_DCHECK(track.first != audio_track || track.second != ssrc); | |
412 #endif | |
413 | |
414 local_audio_tracks_.push_back(std::make_pair(audio_track, ssrc)); | |
415 | |
416 // Create the kStatsReportTypeTrack report for the new track if there is no | |
417 // report yet. | |
418 StatsReport::Id id(StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack, | |
419 audio_track->id())); | |
420 StatsReport* report = reports_.Find(id); | |
421 if (!report) { | |
422 report = reports_.InsertNew(id); | |
423 report->AddString(StatsReport::kStatsValueNameTrackId, audio_track->id()); | |
424 } | |
425 } | |
426 | |
427 void StatsCollector::RemoveLocalAudioTrack(AudioTrackInterface* audio_track, | |
428 uint32_t ssrc) { | |
429 RTC_DCHECK(audio_track != NULL); | |
430 local_audio_tracks_.erase(std::remove_if(local_audio_tracks_.begin(), | |
431 local_audio_tracks_.end(), | |
432 [audio_track, ssrc](const LocalAudioTrackVector::value_type& track) { | |
433 return track.first == audio_track && track.second == ssrc; | |
434 })); | |
435 } | |
436 | |
437 void StatsCollector::GetStats(MediaStreamTrackInterface* track, | |
438 StatsReports* reports) { | |
439 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
440 RTC_DCHECK(reports != NULL); | |
441 RTC_DCHECK(reports->empty()); | |
442 | |
443 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
444 | |
445 if (!track) { | |
446 reports->reserve(reports_.size()); | |
447 for (auto* r : reports_) | |
448 reports->push_back(r); | |
449 return; | |
450 } | |
451 | |
452 StatsReport* report = reports_.Find(StatsReport::NewTypedId( | |
453 StatsReport::kStatsReportTypeSession, pc_->session()->id())); | |
454 if (report) | |
455 reports->push_back(report); | |
456 | |
457 report = reports_.Find(StatsReport::NewTypedId( | |
458 StatsReport::kStatsReportTypeTrack, track->id())); | |
459 | |
460 if (!report) | |
461 return; | |
462 | |
463 reports->push_back(report); | |
464 | |
465 std::string track_id; | |
466 for (const auto* r : reports_) { | |
467 if (r->type() != StatsReport::kStatsReportTypeSsrc) | |
468 continue; | |
469 | |
470 const StatsReport::Value* v = | |
471 r->FindValue(StatsReport::kStatsValueNameTrackId); | |
472 if (v && v->string_val() == track->id()) | |
473 reports->push_back(r); | |
474 } | |
475 } | |
476 | |
477 void | |
478 StatsCollector::UpdateStats(PeerConnectionInterface::StatsOutputLevel level) { | |
479 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
480 double time_now = GetTimeNow(); | |
481 // Calls to UpdateStats() that occur less than kMinGatherStatsPeriod number of | |
482 // ms apart will be ignored. | |
483 const double kMinGatherStatsPeriod = 50; | |
484 if (stats_gathering_started_ != 0 && | |
485 stats_gathering_started_ + kMinGatherStatsPeriod > time_now) { | |
486 return; | |
487 } | |
488 stats_gathering_started_ = time_now; | |
489 | |
490 // TODO(pthatcher): Merge PeerConnection and WebRtcSession so there is no | |
491 // pc_->session(). | |
492 if (pc_->session()) { | |
493 // TODO(tommi): All of these hop over to the worker thread to fetch | |
494 // information. We could use an AsyncInvoker to run all of these and post | |
495 // the information back to the signaling thread where we can create and | |
496 // update stats reports. That would also clean up the threading story a bit | |
497 // since we'd be creating/updating the stats report objects consistently on | |
498 // the same thread (this class has no locks right now). | |
499 ExtractSessionInfo(); | |
500 ExtractVoiceInfo(); | |
501 ExtractVideoInfo(level); | |
502 ExtractSenderInfo(); | |
503 ExtractDataInfo(); | |
504 UpdateTrackReports(); | |
505 } | |
506 } | |
507 | |
508 StatsReport* StatsCollector::PrepareReport( | |
509 bool local, | |
510 uint32_t ssrc, | |
511 const StatsReport::Id& transport_id, | |
512 StatsReport::Direction direction) { | |
513 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
514 StatsReport::Id id(StatsReport::NewIdWithDirection( | |
515 local ? StatsReport::kStatsReportTypeSsrc | |
516 : StatsReport::kStatsReportTypeRemoteSsrc, | |
517 rtc::ToString<uint32_t>(ssrc), direction)); | |
518 StatsReport* report = reports_.Find(id); | |
519 | |
520 // Use the ID of the track that is currently mapped to the SSRC, if any. | |
521 std::string track_id; | |
522 if (!GetTrackIdBySsrc(ssrc, &track_id, direction)) { | |
523 if (!report) { | |
524 // The ssrc is not used by any track or existing report, return NULL | |
525 // in such case to indicate no report is prepared for the ssrc. | |
526 return NULL; | |
527 } | |
528 | |
529 // The ssrc is not used by any existing track. Keeps the old track id | |
530 // since we want to report the stats for inactive ssrc. | |
531 const StatsReport::Value* v = | |
532 report->FindValue(StatsReport::kStatsValueNameTrackId); | |
533 if (v) | |
534 track_id = v->string_val(); | |
535 } | |
536 | |
537 if (!report) | |
538 report = reports_.InsertNew(id); | |
539 | |
540 // FYI - for remote reports, the timestamp will be overwritten later. | |
541 report->set_timestamp(stats_gathering_started_); | |
542 | |
543 report->AddInt64(StatsReport::kStatsValueNameSsrc, ssrc); | |
544 report->AddString(StatsReport::kStatsValueNameTrackId, track_id); | |
545 // Add the mapping of SSRC to transport. | |
546 report->AddId(StatsReport::kStatsValueNameTransportId, transport_id); | |
547 return report; | |
548 } | |
549 | |
550 bool StatsCollector::IsValidTrack(const std::string& track_id) { | |
551 return reports_.Find(StatsReport::NewTypedId( | |
552 StatsReport::kStatsReportTypeTrack, track_id)) != nullptr; | |
553 } | |
554 | |
555 StatsReport* StatsCollector::AddCertificateReports( | |
556 const rtc::SSLCertificate* cert) { | |
557 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
558 RTC_DCHECK(cert != NULL); | |
559 | |
560 std::unique_ptr<rtc::SSLCertificateStats> first_stats = cert->GetStats(); | |
561 StatsReport* first_report = nullptr; | |
562 StatsReport* prev_report = nullptr; | |
563 for (rtc::SSLCertificateStats* stats = first_stats.get(); stats; | |
564 stats = stats->issuer.get()) { | |
565 StatsReport::Id id(StatsReport::NewTypedId( | |
566 StatsReport::kStatsReportTypeCertificate, stats->fingerprint)); | |
567 | |
568 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
569 report->set_timestamp(stats_gathering_started_); | |
570 report->AddString(StatsReport::kStatsValueNameFingerprint, | |
571 stats->fingerprint); | |
572 report->AddString(StatsReport::kStatsValueNameFingerprintAlgorithm, | |
573 stats->fingerprint_algorithm); | |
574 report->AddString(StatsReport::kStatsValueNameDer, | |
575 stats->base64_certificate); | |
576 if (!first_report) | |
577 first_report = report; | |
578 else | |
579 prev_report->AddId(StatsReport::kStatsValueNameIssuerId, id); | |
580 prev_report = report; | |
581 } | |
582 return first_report; | |
583 } | |
584 | |
585 StatsReport* StatsCollector::AddConnectionInfoReport( | |
586 const std::string& content_name, int component, int connection_id, | |
587 const StatsReport::Id& channel_report_id, | |
588 const cricket::ConnectionInfo& info) { | |
589 StatsReport::Id id(StatsReport::NewCandidatePairId(content_name, component, | |
590 connection_id)); | |
591 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
592 report->set_timestamp(stats_gathering_started_); | |
593 | |
594 const BoolForAdd bools[] = { | |
595 {StatsReport::kStatsValueNameActiveConnection, info.best_connection}, | |
596 {StatsReport::kStatsValueNameReceiving, info.receiving}, | |
597 {StatsReport::kStatsValueNameWritable, info.writable}, | |
598 }; | |
599 for (const auto& b : bools) | |
600 report->AddBoolean(b.name, b.value); | |
601 | |
602 report->AddId(StatsReport::kStatsValueNameChannelId, channel_report_id); | |
603 report->AddId(StatsReport::kStatsValueNameLocalCandidateId, | |
604 AddCandidateReport(info.local_candidate, true)->id()); | |
605 report->AddId(StatsReport::kStatsValueNameRemoteCandidateId, | |
606 AddCandidateReport(info.remote_candidate, false)->id()); | |
607 | |
608 const Int64ForAdd int64s[] = { | |
609 {StatsReport::kStatsValueNameBytesReceived, info.recv_total_bytes}, | |
610 {StatsReport::kStatsValueNameBytesSent, info.sent_total_bytes}, | |
611 {StatsReport::kStatsValueNamePacketsSent, info.sent_total_packets}, | |
612 {StatsReport::kStatsValueNameRtt, info.rtt}, | |
613 {StatsReport::kStatsValueNameSendPacketsDiscarded, | |
614 info.sent_discarded_packets}, | |
615 {StatsReport::kStatsValueNameSentPingRequestsTotal, | |
616 info.sent_ping_requests_total}, | |
617 {StatsReport::kStatsValueNameSentPingRequestsBeforeFirstResponse, | |
618 info.sent_ping_requests_before_first_response}, | |
619 {StatsReport::kStatsValueNameSentPingResponses, info.sent_ping_responses}, | |
620 {StatsReport::kStatsValueNameRecvPingRequests, info.recv_ping_requests}, | |
621 {StatsReport::kStatsValueNameRecvPingResponses, info.recv_ping_responses}, | |
622 }; | |
623 for (const auto& i : int64s) | |
624 report->AddInt64(i.name, i.value); | |
625 | |
626 report->AddString(StatsReport::kStatsValueNameLocalAddress, | |
627 info.local_candidate.address().ToString()); | |
628 report->AddString(StatsReport::kStatsValueNameLocalCandidateType, | |
629 info.local_candidate.type()); | |
630 report->AddString(StatsReport::kStatsValueNameRemoteAddress, | |
631 info.remote_candidate.address().ToString()); | |
632 report->AddString(StatsReport::kStatsValueNameRemoteCandidateType, | |
633 info.remote_candidate.type()); | |
634 report->AddString(StatsReport::kStatsValueNameTransportType, | |
635 info.local_candidate.protocol()); | |
636 | |
637 return report; | |
638 } | |
639 | |
640 StatsReport* StatsCollector::AddCandidateReport( | |
641 const cricket::Candidate& candidate, | |
642 bool local) { | |
643 StatsReport::Id id(StatsReport::NewCandidateId(local, candidate.id())); | |
644 StatsReport* report = reports_.Find(id); | |
645 if (!report) { | |
646 report = reports_.InsertNew(id); | |
647 report->set_timestamp(stats_gathering_started_); | |
648 if (local) { | |
649 report->AddString(StatsReport::kStatsValueNameCandidateNetworkType, | |
650 AdapterTypeToStatsType(candidate.network_type())); | |
651 } | |
652 report->AddString(StatsReport::kStatsValueNameCandidateIPAddress, | |
653 candidate.address().ipaddr().ToString()); | |
654 report->AddString(StatsReport::kStatsValueNameCandidatePortNumber, | |
655 candidate.address().PortAsString()); | |
656 report->AddInt(StatsReport::kStatsValueNameCandidatePriority, | |
657 candidate.priority()); | |
658 report->AddString(StatsReport::kStatsValueNameCandidateType, | |
659 IceCandidateTypeToStatsType(candidate.type())); | |
660 report->AddString(StatsReport::kStatsValueNameCandidateTransportType, | |
661 candidate.protocol()); | |
662 } | |
663 | |
664 return report; | |
665 } | |
666 | |
667 void StatsCollector::ExtractSessionInfo() { | |
668 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
669 | |
670 // Extract information from the base session. | |
671 StatsReport::Id id(StatsReport::NewTypedId( | |
672 StatsReport::kStatsReportTypeSession, pc_->session()->id())); | |
673 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
674 report->set_timestamp(stats_gathering_started_); | |
675 report->AddBoolean(StatsReport::kStatsValueNameInitiator, | |
676 pc_->session()->initial_offerer()); | |
677 | |
678 SessionStats stats; | |
679 if (!pc_->session()->GetTransportStats(&stats)) { | |
680 return; | |
681 } | |
682 | |
683 // Store the proxy map away for use in SSRC reporting. | |
684 // TODO(tommi): This shouldn't be necessary if we post the stats back to the | |
685 // signaling thread after fetching them on the worker thread, then just use | |
686 // the proxy map directly from the session stats. | |
687 // As is, if GetStats() failed, we could be using old (incorrect?) proxy | |
688 // data. | |
689 proxy_to_transport_ = stats.proxy_to_transport; | |
690 | |
691 for (const auto& transport_iter : stats.transport_stats) { | |
692 // Attempt to get a copy of the certificates from the transport and | |
693 // expose them in stats reports. All channels in a transport share the | |
694 // same local and remote certificates. | |
695 // | |
696 StatsReport::Id local_cert_report_id, remote_cert_report_id; | |
697 rtc::scoped_refptr<rtc::RTCCertificate> certificate; | |
698 if (pc_->session()->GetLocalCertificate( | |
699 transport_iter.second.transport_name, &certificate)) { | |
700 StatsReport* r = AddCertificateReports(&(certificate->ssl_certificate())); | |
701 if (r) | |
702 local_cert_report_id = r->id(); | |
703 } | |
704 | |
705 std::unique_ptr<rtc::SSLCertificate> cert = | |
706 pc_->session()->GetRemoteSSLCertificate( | |
707 transport_iter.second.transport_name); | |
708 if (cert) { | |
709 StatsReport* r = AddCertificateReports(cert.get()); | |
710 if (r) | |
711 remote_cert_report_id = r->id(); | |
712 } | |
713 | |
714 for (const auto& channel_iter : transport_iter.second.channel_stats) { | |
715 StatsReport::Id id(StatsReport::NewComponentId( | |
716 transport_iter.second.transport_name, channel_iter.component)); | |
717 StatsReport* channel_report = reports_.ReplaceOrAddNew(id); | |
718 channel_report->set_timestamp(stats_gathering_started_); | |
719 channel_report->AddInt(StatsReport::kStatsValueNameComponent, | |
720 channel_iter.component); | |
721 if (local_cert_report_id.get()) { | |
722 channel_report->AddId(StatsReport::kStatsValueNameLocalCertificateId, | |
723 local_cert_report_id); | |
724 } | |
725 if (remote_cert_report_id.get()) { | |
726 channel_report->AddId(StatsReport::kStatsValueNameRemoteCertificateId, | |
727 remote_cert_report_id); | |
728 } | |
729 int srtp_crypto_suite = channel_iter.srtp_crypto_suite; | |
730 if (srtp_crypto_suite != rtc::SRTP_INVALID_CRYPTO_SUITE && | |
731 rtc::SrtpCryptoSuiteToName(srtp_crypto_suite).length()) { | |
732 channel_report->AddString( | |
733 StatsReport::kStatsValueNameSrtpCipher, | |
734 rtc::SrtpCryptoSuiteToName(srtp_crypto_suite)); | |
735 } | |
736 int ssl_cipher_suite = channel_iter.ssl_cipher_suite; | |
737 if (ssl_cipher_suite != rtc::TLS_NULL_WITH_NULL_NULL && | |
738 rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher_suite) | |
739 .length()) { | |
740 channel_report->AddString( | |
741 StatsReport::kStatsValueNameDtlsCipher, | |
742 rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher_suite)); | |
743 } | |
744 | |
745 int connection_id = 0; | |
746 for (const cricket::ConnectionInfo& info : | |
747 channel_iter.connection_infos) { | |
748 StatsReport* connection_report = AddConnectionInfoReport( | |
749 transport_iter.first, channel_iter.component, connection_id++, | |
750 channel_report->id(), info); | |
751 if (info.best_connection) { | |
752 channel_report->AddId( | |
753 StatsReport::kStatsValueNameSelectedCandidatePairId, | |
754 connection_report->id()); | |
755 } | |
756 } | |
757 } | |
758 } | |
759 } | |
760 | |
761 void StatsCollector::ExtractVoiceInfo() { | |
762 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
763 | |
764 if (!pc_->session()->voice_channel()) { | |
765 return; | |
766 } | |
767 cricket::VoiceMediaInfo voice_info; | |
768 if (!pc_->session()->voice_channel()->GetStats(&voice_info)) { | |
769 LOG(LS_ERROR) << "Failed to get voice channel stats."; | |
770 return; | |
771 } | |
772 | |
773 // TODO(tommi): The above code should run on the worker thread and post the | |
774 // results back to the signaling thread, where we can add data to the reports. | |
775 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
776 | |
777 StatsReport::Id transport_id(GetTransportIdFromProxy( | |
778 proxy_to_transport_, pc_->session()->voice_channel()->content_name())); | |
779 if (!transport_id.get()) { | |
780 LOG(LS_ERROR) << "Failed to get transport name for proxy " | |
781 << pc_->session()->voice_channel()->content_name(); | |
782 return; | |
783 } | |
784 | |
785 ExtractStatsFromList(voice_info.receivers, transport_id, this, | |
786 StatsReport::kReceive); | |
787 ExtractStatsFromList(voice_info.senders, transport_id, this, | |
788 StatsReport::kSend); | |
789 | |
790 UpdateStatsFromExistingLocalAudioTracks(); | |
791 } | |
792 | |
793 void StatsCollector::ExtractVideoInfo( | |
794 PeerConnectionInterface::StatsOutputLevel level) { | |
795 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
796 | |
797 if (!pc_->session()->video_channel()) | |
798 return; | |
799 | |
800 cricket::VideoMediaInfo video_info; | |
801 if (!pc_->session()->video_channel()->GetStats(&video_info)) { | |
802 LOG(LS_ERROR) << "Failed to get video channel stats."; | |
803 return; | |
804 } | |
805 | |
806 // TODO(tommi): The above code should run on the worker thread and post the | |
807 // results back to the signaling thread, where we can add data to the reports. | |
808 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
809 | |
810 StatsReport::Id transport_id(GetTransportIdFromProxy( | |
811 proxy_to_transport_, pc_->session()->video_channel()->content_name())); | |
812 if (!transport_id.get()) { | |
813 LOG(LS_ERROR) << "Failed to get transport name for proxy " | |
814 << pc_->session()->video_channel()->content_name(); | |
815 return; | |
816 } | |
817 ExtractStatsFromList(video_info.receivers, transport_id, this, | |
818 StatsReport::kReceive); | |
819 ExtractStatsFromList(video_info.senders, transport_id, this, | |
820 StatsReport::kSend); | |
821 if (video_info.bw_estimations.size() != 1) { | |
822 LOG(LS_ERROR) << "BWEs count: " << video_info.bw_estimations.size(); | |
823 } else { | |
824 StatsReport::Id report_id(StatsReport::NewBandwidthEstimationId()); | |
825 StatsReport* report = reports_.FindOrAddNew(report_id); | |
826 ExtractStats( | |
827 video_info.bw_estimations[0], stats_gathering_started_, level, report); | |
828 } | |
829 } | |
830 | |
831 void StatsCollector::ExtractSenderInfo() { | |
832 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
833 | |
834 for (const auto& sender : pc_->GetSenders()) { | |
835 // TODO(nisse): SSRC == 0 currently means none. Delete check when | |
836 // that is fixed. | |
837 if (!sender->ssrc()) { | |
838 continue; | |
839 } | |
840 const rtc::scoped_refptr<MediaStreamTrackInterface> track(sender->track()); | |
841 if (!track || track->kind() != MediaStreamTrackInterface::kVideoKind) { | |
842 continue; | |
843 } | |
844 // Safe, because kind() == kVideoKind implies a subclass of | |
845 // VideoTrackInterface; see mediastreaminterface.h. | |
846 VideoTrackSourceInterface* source = | |
847 static_cast<VideoTrackInterface*>(track.get())->GetSource(); | |
848 | |
849 VideoTrackSourceInterface::Stats stats; | |
850 if (!source->GetStats(&stats)) { | |
851 continue; | |
852 } | |
853 const StatsReport::Id stats_id = StatsReport::NewIdWithDirection( | |
854 StatsReport::kStatsReportTypeSsrc, | |
855 rtc::ToString<uint32_t>(sender->ssrc()), StatsReport::kSend); | |
856 StatsReport* report = reports_.FindOrAddNew(stats_id); | |
857 report->AddInt(StatsReport::kStatsValueNameFrameWidthInput, | |
858 stats.input_width); | |
859 report->AddInt(StatsReport::kStatsValueNameFrameHeightInput, | |
860 stats.input_height); | |
861 } | |
862 } | |
863 | |
864 void StatsCollector::ExtractDataInfo() { | |
865 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
866 | |
867 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
868 | |
869 for (const auto& dc : pc_->sctp_data_channels()) { | |
870 StatsReport::Id id(StatsReport::NewTypedIntId( | |
871 StatsReport::kStatsReportTypeDataChannel, dc->id())); | |
872 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
873 report->set_timestamp(stats_gathering_started_); | |
874 report->AddString(StatsReport::kStatsValueNameLabel, dc->label()); | |
875 // Filter out the initial id (-1). | |
876 if (dc->id() >= 0) { | |
877 report->AddInt(StatsReport::kStatsValueNameDataChannelId, dc->id()); | |
878 } | |
879 report->AddString(StatsReport::kStatsValueNameProtocol, dc->protocol()); | |
880 report->AddString(StatsReport::kStatsValueNameState, | |
881 DataChannelInterface::DataStateString(dc->state())); | |
882 } | |
883 } | |
884 | |
885 StatsReport* StatsCollector::GetReport(const StatsReport::StatsType& type, | |
886 const std::string& id, | |
887 StatsReport::Direction direction) { | |
888 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
889 RTC_DCHECK(type == StatsReport::kStatsReportTypeSsrc || | |
890 type == StatsReport::kStatsReportTypeRemoteSsrc); | |
891 return reports_.Find(StatsReport::NewIdWithDirection(type, id, direction)); | |
892 } | |
893 | |
894 void StatsCollector::UpdateStatsFromExistingLocalAudioTracks() { | |
895 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
896 // Loop through the existing local audio tracks. | |
897 for (const auto& it : local_audio_tracks_) { | |
898 AudioTrackInterface* track = it.first; | |
899 uint32_t ssrc = it.second; | |
900 StatsReport* report = | |
901 GetReport(StatsReport::kStatsReportTypeSsrc, | |
902 rtc::ToString<uint32_t>(ssrc), StatsReport::kSend); | |
903 if (report == NULL) { | |
904 // This can happen if a local audio track is added to a stream on the | |
905 // fly and the report has not been set up yet. Do nothing in this case. | |
906 LOG(LS_ERROR) << "Stats report does not exist for ssrc " << ssrc; | |
907 continue; | |
908 } | |
909 | |
910 // The same ssrc can be used by both local and remote audio tracks. | |
911 const StatsReport::Value* v = | |
912 report->FindValue(StatsReport::kStatsValueNameTrackId); | |
913 if (!v || v->string_val() != track->id()) | |
914 continue; | |
915 | |
916 report->set_timestamp(stats_gathering_started_); | |
917 UpdateReportFromAudioTrack(track, report); | |
918 } | |
919 } | |
920 | |
921 void StatsCollector::UpdateReportFromAudioTrack(AudioTrackInterface* track, | |
922 StatsReport* report) { | |
923 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
924 RTC_DCHECK(track != NULL); | |
925 | |
926 // Don't overwrite report values if they're not available. | |
927 int signal_level; | |
928 if (track->GetSignalLevel(&signal_level)) { | |
929 RTC_DCHECK_GE(signal_level, 0); | |
930 report->AddInt(StatsReport::kStatsValueNameAudioInputLevel, signal_level); | |
931 } | |
932 | |
933 auto audio_processor(track->GetAudioProcessor()); | |
934 | |
935 if (audio_processor.get()) { | |
936 AudioProcessorInterface::AudioProcessorStats stats; | |
937 audio_processor->GetStats(&stats); | |
938 | |
939 SetAudioProcessingStats( | |
940 report, stats.typing_noise_detected, stats.echo_return_loss, | |
941 stats.echo_return_loss_enhancement, stats.echo_delay_median_ms, | |
942 stats.aec_quality_min, stats.echo_delay_std_ms, | |
943 stats.residual_echo_likelihood); | |
944 | |
945 report->AddFloat(StatsReport::kStatsValueNameAecDivergentFilterFraction, | |
946 stats.aec_divergent_filter_fraction); | |
947 } | |
948 } | |
949 | |
950 bool StatsCollector::GetTrackIdBySsrc(uint32_t ssrc, | |
951 std::string* track_id, | |
952 StatsReport::Direction direction) { | |
953 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
954 if (direction == StatsReport::kSend) { | |
955 if (!pc_->session()->GetLocalTrackIdBySsrc(ssrc, track_id)) { | |
956 LOG(LS_WARNING) << "The SSRC " << ssrc | |
957 << " is not associated with a sending track"; | |
958 return false; | |
959 } | |
960 } else { | |
961 RTC_DCHECK(direction == StatsReport::kReceive); | |
962 if (!pc_->session()->GetRemoteTrackIdBySsrc(ssrc, track_id)) { | |
963 LOG(LS_WARNING) << "The SSRC " << ssrc | |
964 << " is not associated with a receiving track"; | |
965 return false; | |
966 } | |
967 } | |
968 | |
969 return true; | |
970 } | |
971 | |
972 void StatsCollector::UpdateTrackReports() { | |
973 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
974 | |
975 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
976 | |
977 for (const auto& entry : track_ids_) { | |
978 StatsReport* report = entry.second; | |
979 report->set_timestamp(stats_gathering_started_); | |
980 } | |
981 } | |
982 | |
983 void StatsCollector::ClearUpdateStatsCacheForTest() { | |
984 stats_gathering_started_ = 0; | |
985 } | |
986 | |
987 } // namespace webrtc | |
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