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1 /* | |
2 * libjingle | |
3 * Copyright 2012 Google Inc. | |
4 * | |
5 * Redistribution and use in source and binary forms, with or without | |
6 * modification, are permitted provided that the following conditions are met: | |
7 * | |
8 * 1. Redistributions of source code must retain the above copyright notice, | |
9 * this list of conditions and the following disclaimer. | |
10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
11 * this list of conditions and the following disclaimer in the documentation | |
12 * and/or other materials provided with the distribution. | |
13 * 3. The name of the author may not be used to endorse or promote products | |
14 * derived from this software without specific prior written permission. | |
15 * | |
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
26 */ | |
27 | |
28 #include "talk/app/webrtc/statscollector.h" | |
29 | |
30 #include <utility> | |
31 #include <vector> | |
32 | |
33 #include "talk/app/webrtc/peerconnection.h" | |
34 #include "talk/session/media/channel.h" | |
35 #include "webrtc/base/base64.h" | |
36 #include "webrtc/base/checks.h" | |
37 #include "webrtc/base/scoped_ptr.h" | |
38 #include "webrtc/base/timing.h" | |
39 | |
40 using rtc::scoped_ptr; | |
41 | |
42 namespace webrtc { | |
43 namespace { | |
44 | |
45 // The following is the enum RTCStatsIceCandidateType from | |
46 // http://w3c.github.io/webrtc-stats/#rtcstatsicecandidatetype-enum such that | |
47 // our stats report for ice candidate type could conform to that. | |
48 const char STATSREPORT_LOCAL_PORT_TYPE[] = "host"; | |
49 const char STATSREPORT_STUN_PORT_TYPE[] = "serverreflexive"; | |
50 const char STATSREPORT_PRFLX_PORT_TYPE[] = "peerreflexive"; | |
51 const char STATSREPORT_RELAY_PORT_TYPE[] = "relayed"; | |
52 | |
53 // Strings used by the stats collector to report adapter types. This fits the | |
54 // general stype of http://w3c.github.io/webrtc-stats than what | |
55 // AdapterTypeToString does. | |
56 const char* STATSREPORT_ADAPTER_TYPE_ETHERNET = "lan"; | |
57 const char* STATSREPORT_ADAPTER_TYPE_WIFI = "wlan"; | |
58 const char* STATSREPORT_ADAPTER_TYPE_WWAN = "wwan"; | |
59 const char* STATSREPORT_ADAPTER_TYPE_VPN = "vpn"; | |
60 const char* STATSREPORT_ADAPTER_TYPE_LOOPBACK = "loopback"; | |
61 | |
62 template<typename ValueType> | |
63 struct TypeForAdd { | |
64 const StatsReport::StatsValueName name; | |
65 const ValueType& value; | |
66 }; | |
67 | |
68 typedef TypeForAdd<bool> BoolForAdd; | |
69 typedef TypeForAdd<float> FloatForAdd; | |
70 typedef TypeForAdd<int64_t> Int64ForAdd; | |
71 typedef TypeForAdd<int> IntForAdd; | |
72 | |
73 StatsReport::Id GetTransportIdFromProxy(const ProxyTransportMap& map, | |
74 const std::string& proxy) { | |
75 RTC_DCHECK(!proxy.empty()); | |
76 auto found = map.find(proxy); | |
77 if (found == map.end()) { | |
78 return StatsReport::Id(); | |
79 } | |
80 | |
81 return StatsReport::NewComponentId( | |
82 found->second, cricket::ICE_CANDIDATE_COMPONENT_RTP); | |
83 } | |
84 | |
85 StatsReport* AddTrackReport(StatsCollection* reports, | |
86 const std::string& track_id) { | |
87 // Adds an empty track report. | |
88 StatsReport::Id id( | |
89 StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack, track_id)); | |
90 StatsReport* report = reports->ReplaceOrAddNew(id); | |
91 report->AddString(StatsReport::kStatsValueNameTrackId, track_id); | |
92 return report; | |
93 } | |
94 | |
95 template <class TrackVector> | |
96 void CreateTrackReports(const TrackVector& tracks, StatsCollection* reports, | |
97 TrackIdMap& track_ids) { | |
98 for (const auto& track : tracks) { | |
99 const std::string& track_id = track->id(); | |
100 StatsReport* report = AddTrackReport(reports, track_id); | |
101 RTC_DCHECK(report != nullptr); | |
102 track_ids[track_id] = report; | |
103 } | |
104 } | |
105 | |
106 void ExtractCommonSendProperties(const cricket::MediaSenderInfo& info, | |
107 StatsReport* report) { | |
108 report->AddString(StatsReport::kStatsValueNameCodecName, info.codec_name); | |
109 report->AddInt64(StatsReport::kStatsValueNameBytesSent, info.bytes_sent); | |
110 report->AddInt64(StatsReport::kStatsValueNameRtt, info.rtt_ms); | |
111 } | |
112 | |
113 void ExtractCommonReceiveProperties(const cricket::MediaReceiverInfo& info, | |
114 StatsReport* report) { | |
115 report->AddString(StatsReport::kStatsValueNameCodecName, info.codec_name); | |
116 } | |
117 | |
118 void SetAudioProcessingStats(StatsReport* report, | |
119 bool typing_noise_detected, | |
120 int echo_return_loss, | |
121 int echo_return_loss_enhancement, | |
122 int echo_delay_median_ms, | |
123 float aec_quality_min, | |
124 int echo_delay_std_ms) { | |
125 report->AddBoolean(StatsReport::kStatsValueNameTypingNoiseState, | |
126 typing_noise_detected); | |
127 report->AddFloat(StatsReport::kStatsValueNameEchoCancellationQualityMin, | |
128 aec_quality_min); | |
129 const IntForAdd ints[] = { | |
130 { StatsReport::kStatsValueNameEchoReturnLoss, echo_return_loss }, | |
131 { StatsReport::kStatsValueNameEchoReturnLossEnhancement, | |
132 echo_return_loss_enhancement }, | |
133 { StatsReport::kStatsValueNameEchoDelayMedian, echo_delay_median_ms }, | |
134 { StatsReport::kStatsValueNameEchoDelayStdDev, echo_delay_std_ms }, | |
135 }; | |
136 for (const auto& i : ints) | |
137 report->AddInt(i.name, i.value); | |
138 } | |
139 | |
140 void ExtractStats(const cricket::VoiceReceiverInfo& info, StatsReport* report) { | |
141 ExtractCommonReceiveProperties(info, report); | |
142 const FloatForAdd floats[] = { | |
143 { StatsReport::kStatsValueNameExpandRate, info.expand_rate }, | |
144 { StatsReport::kStatsValueNameSecondaryDecodedRate, | |
145 info.secondary_decoded_rate }, | |
146 { StatsReport::kStatsValueNameSpeechExpandRate, info.speech_expand_rate }, | |
147 { StatsReport::kStatsValueNameAccelerateRate, info.accelerate_rate }, | |
148 { StatsReport::kStatsValueNamePreemptiveExpandRate, | |
149 info.preemptive_expand_rate }, | |
150 }; | |
151 | |
152 const IntForAdd ints[] = { | |
153 { StatsReport::kStatsValueNameAudioOutputLevel, info.audio_level }, | |
154 { StatsReport::kStatsValueNameCurrentDelayMs, info.delay_estimate_ms }, | |
155 { StatsReport::kStatsValueNameDecodingCNG, info.decoding_cng }, | |
156 { StatsReport::kStatsValueNameDecodingCTN, info.decoding_calls_to_neteq }, | |
157 { StatsReport::kStatsValueNameDecodingCTSG, | |
158 info.decoding_calls_to_silence_generator }, | |
159 { StatsReport::kStatsValueNameDecodingNormal, info.decoding_normal }, | |
160 { StatsReport::kStatsValueNameDecodingPLC, info.decoding_plc }, | |
161 { StatsReport::kStatsValueNameDecodingPLCCNG, info.decoding_plc_cng }, | |
162 { StatsReport::kStatsValueNameJitterBufferMs, info.jitter_buffer_ms }, | |
163 { StatsReport::kStatsValueNameJitterReceived, info.jitter_ms }, | |
164 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
165 { StatsReport::kStatsValueNamePacketsReceived, info.packets_rcvd }, | |
166 { StatsReport::kStatsValueNamePreferredJitterBufferMs, | |
167 info.jitter_buffer_preferred_ms }, | |
168 }; | |
169 | |
170 for (const auto& f : floats) | |
171 report->AddFloat(f.name, f.value); | |
172 | |
173 for (const auto& i : ints) | |
174 report->AddInt(i.name, i.value); | |
175 | |
176 report->AddInt64(StatsReport::kStatsValueNameBytesReceived, | |
177 info.bytes_rcvd); | |
178 report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs, | |
179 info.capture_start_ntp_time_ms); | |
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 | |
191 RTC_DCHECK_GE(info.audio_level, 0); | |
192 const IntForAdd ints[] = { | |
193 { StatsReport::kStatsValueNameAudioInputLevel, info.audio_level}, | |
194 { StatsReport::kStatsValueNameJitterReceived, info.jitter_ms }, | |
195 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
196 { StatsReport::kStatsValueNamePacketsSent, info.packets_sent }, | |
197 }; | |
198 | |
199 for (const auto& i : ints) | |
200 report->AddInt(i.name, i.value); | |
201 report->AddString(StatsReport::kStatsValueNameMediaType, "audio"); | |
202 } | |
203 | |
204 void ExtractStats(const cricket::VideoReceiverInfo& info, StatsReport* report) { | |
205 ExtractCommonReceiveProperties(info, report); | |
206 report->AddString(StatsReport::kStatsValueNameCodecImplementationName, | |
207 info.decoder_implementation_name); | |
208 report->AddInt64(StatsReport::kStatsValueNameBytesReceived, | |
209 info.bytes_rcvd); | |
210 report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs, | |
211 info.capture_start_ntp_time_ms); | |
212 const IntForAdd ints[] = { | |
213 { StatsReport::kStatsValueNameCurrentDelayMs, info.current_delay_ms }, | |
214 { StatsReport::kStatsValueNameDecodeMs, info.decode_ms }, | |
215 { StatsReport::kStatsValueNameFirsSent, info.firs_sent }, | |
216 { StatsReport::kStatsValueNameFrameHeightReceived, info.frame_height }, | |
217 { StatsReport::kStatsValueNameFrameRateDecoded, info.framerate_decoded }, | |
218 { StatsReport::kStatsValueNameFrameRateOutput, info.framerate_output }, | |
219 { StatsReport::kStatsValueNameFrameRateReceived, info.framerate_rcvd }, | |
220 { StatsReport::kStatsValueNameFrameWidthReceived, info.frame_width }, | |
221 { StatsReport::kStatsValueNameJitterBufferMs, info.jitter_buffer_ms }, | |
222 { StatsReport::kStatsValueNameMaxDecodeMs, info.max_decode_ms }, | |
223 { StatsReport::kStatsValueNameMinPlayoutDelayMs, | |
224 info.min_playout_delay_ms }, | |
225 { StatsReport::kStatsValueNameNacksSent, info.nacks_sent }, | |
226 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
227 { StatsReport::kStatsValueNamePacketsReceived, info.packets_rcvd }, | |
228 { StatsReport::kStatsValueNamePlisSent, info.plis_sent }, | |
229 { StatsReport::kStatsValueNameRenderDelayMs, info.render_delay_ms }, | |
230 { StatsReport::kStatsValueNameTargetDelayMs, info.target_delay_ms }, | |
231 }; | |
232 | |
233 for (const auto& i : ints) | |
234 report->AddInt(i.name, i.value); | |
235 report->AddString(StatsReport::kStatsValueNameMediaType, "video"); | |
236 } | |
237 | |
238 void ExtractStats(const cricket::VideoSenderInfo& info, StatsReport* report) { | |
239 ExtractCommonSendProperties(info, report); | |
240 | |
241 report->AddString(StatsReport::kStatsValueNameCodecImplementationName, | |
242 info.encoder_implementation_name); | |
243 report->AddBoolean(StatsReport::kStatsValueNameBandwidthLimitedResolution, | |
244 (info.adapt_reason & 0x2) > 0); | |
245 report->AddBoolean(StatsReport::kStatsValueNameCpuLimitedResolution, | |
246 (info.adapt_reason & 0x1) > 0); | |
247 report->AddBoolean(StatsReport::kStatsValueNameViewLimitedResolution, | |
248 (info.adapt_reason & 0x4) > 0); | |
249 | |
250 const IntForAdd ints[] = { | |
251 { StatsReport::kStatsValueNameAdaptationChanges, info.adapt_changes }, | |
252 { StatsReport::kStatsValueNameAvgEncodeMs, info.avg_encode_ms }, | |
253 { StatsReport::kStatsValueNameEncodeUsagePercent, | |
254 info.encode_usage_percent }, | |
255 { StatsReport::kStatsValueNameFirsReceived, info.firs_rcvd }, | |
256 { StatsReport::kStatsValueNameFrameHeightInput, info.input_frame_height }, | |
257 { StatsReport::kStatsValueNameFrameHeightSent, info.send_frame_height }, | |
258 { StatsReport::kStatsValueNameFrameRateInput, info.framerate_input }, | |
259 { StatsReport::kStatsValueNameFrameRateSent, info.framerate_sent }, | |
260 { StatsReport::kStatsValueNameFrameWidthInput, info.input_frame_width }, | |
261 { StatsReport::kStatsValueNameFrameWidthSent, info.send_frame_width }, | |
262 { StatsReport::kStatsValueNameNacksReceived, info.nacks_rcvd }, | |
263 { StatsReport::kStatsValueNamePacketsLost, info.packets_lost }, | |
264 { StatsReport::kStatsValueNamePacketsSent, info.packets_sent }, | |
265 { StatsReport::kStatsValueNamePlisReceived, info.plis_rcvd }, | |
266 }; | |
267 | |
268 for (const auto& i : ints) | |
269 report->AddInt(i.name, i.value); | |
270 report->AddString(StatsReport::kStatsValueNameMediaType, "video"); | |
271 } | |
272 | |
273 void ExtractStats(const cricket::BandwidthEstimationInfo& info, | |
274 double stats_gathering_started, | |
275 PeerConnectionInterface::StatsOutputLevel level, | |
276 StatsReport* report) { | |
277 RTC_DCHECK(report->type() == StatsReport::kStatsReportTypeBwe); | |
278 | |
279 report->set_timestamp(stats_gathering_started); | |
280 const IntForAdd ints[] = { | |
281 { StatsReport::kStatsValueNameAvailableSendBandwidth, | |
282 info.available_send_bandwidth }, | |
283 { StatsReport::kStatsValueNameAvailableReceiveBandwidth, | |
284 info.available_recv_bandwidth }, | |
285 { StatsReport::kStatsValueNameTargetEncBitrate, info.target_enc_bitrate }, | |
286 { StatsReport::kStatsValueNameActualEncBitrate, info.actual_enc_bitrate }, | |
287 { StatsReport::kStatsValueNameRetransmitBitrate, info.retransmit_bitrate }, | |
288 { StatsReport::kStatsValueNameTransmitBitrate, info.transmit_bitrate }, | |
289 }; | |
290 for (const auto& i : ints) | |
291 report->AddInt(i.name, i.value); | |
292 report->AddInt64(StatsReport::kStatsValueNameBucketDelay, info.bucket_delay); | |
293 } | |
294 | |
295 void ExtractRemoteStats(const cricket::MediaSenderInfo& info, | |
296 StatsReport* report) { | |
297 report->set_timestamp(info.remote_stats[0].timestamp); | |
298 // TODO(hta): Extract some stats here. | |
299 } | |
300 | |
301 void ExtractRemoteStats(const cricket::MediaReceiverInfo& info, | |
302 StatsReport* report) { | |
303 report->set_timestamp(info.remote_stats[0].timestamp); | |
304 // TODO(hta): Extract some stats here. | |
305 } | |
306 | |
307 // Template to extract stats from a data vector. | |
308 // In order to use the template, the functions that are called from it, | |
309 // ExtractStats and ExtractRemoteStats, must be defined and overloaded | |
310 // for each type. | |
311 template<typename T> | |
312 void ExtractStatsFromList(const std::vector<T>& data, | |
313 const StatsReport::Id& transport_id, | |
314 StatsCollector* collector, | |
315 StatsReport::Direction direction) { | |
316 for (const auto& d : data) { | |
317 uint32_t ssrc = d.ssrc(); | |
318 // Each track can have stats for both local and remote objects. | |
319 // TODO(hta): Handle the case of multiple SSRCs per object. | |
320 StatsReport* report = collector->PrepareReport(true, ssrc, transport_id, | |
321 direction); | |
322 if (report) | |
323 ExtractStats(d, report); | |
324 | |
325 if (!d.remote_stats.empty()) { | |
326 report = collector->PrepareReport(false, ssrc, transport_id, direction); | |
327 if (report) | |
328 ExtractRemoteStats(d, report); | |
329 } | |
330 } | |
331 } | |
332 | |
333 } // namespace | |
334 | |
335 const char* IceCandidateTypeToStatsType(const std::string& candidate_type) { | |
336 if (candidate_type == cricket::LOCAL_PORT_TYPE) { | |
337 return STATSREPORT_LOCAL_PORT_TYPE; | |
338 } | |
339 if (candidate_type == cricket::STUN_PORT_TYPE) { | |
340 return STATSREPORT_STUN_PORT_TYPE; | |
341 } | |
342 if (candidate_type == cricket::PRFLX_PORT_TYPE) { | |
343 return STATSREPORT_PRFLX_PORT_TYPE; | |
344 } | |
345 if (candidate_type == cricket::RELAY_PORT_TYPE) { | |
346 return STATSREPORT_RELAY_PORT_TYPE; | |
347 } | |
348 RTC_DCHECK(false); | |
349 return "unknown"; | |
350 } | |
351 | |
352 const char* AdapterTypeToStatsType(rtc::AdapterType type) { | |
353 switch (type) { | |
354 case rtc::ADAPTER_TYPE_UNKNOWN: | |
355 return "unknown"; | |
356 case rtc::ADAPTER_TYPE_ETHERNET: | |
357 return STATSREPORT_ADAPTER_TYPE_ETHERNET; | |
358 case rtc::ADAPTER_TYPE_WIFI: | |
359 return STATSREPORT_ADAPTER_TYPE_WIFI; | |
360 case rtc::ADAPTER_TYPE_CELLULAR: | |
361 return STATSREPORT_ADAPTER_TYPE_WWAN; | |
362 case rtc::ADAPTER_TYPE_VPN: | |
363 return STATSREPORT_ADAPTER_TYPE_VPN; | |
364 case rtc::ADAPTER_TYPE_LOOPBACK: | |
365 return STATSREPORT_ADAPTER_TYPE_LOOPBACK; | |
366 default: | |
367 RTC_DCHECK(false); | |
368 return ""; | |
369 } | |
370 } | |
371 | |
372 StatsCollector::StatsCollector(PeerConnection* pc) | |
373 : pc_(pc), stats_gathering_started_(0) { | |
374 RTC_DCHECK(pc_); | |
375 } | |
376 | |
377 StatsCollector::~StatsCollector() { | |
378 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
379 } | |
380 | |
381 double StatsCollector::GetTimeNow() { | |
382 return rtc::Timing::WallTimeNow() * rtc::kNumMillisecsPerSec; | |
383 } | |
384 | |
385 // Adds a MediaStream with tracks that can be used as a |selector| in a call | |
386 // to GetStats. | |
387 void StatsCollector::AddStream(MediaStreamInterface* stream) { | |
388 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
389 RTC_DCHECK(stream != NULL); | |
390 | |
391 CreateTrackReports<AudioTrackVector>(stream->GetAudioTracks(), | |
392 &reports_, track_ids_); | |
393 CreateTrackReports<VideoTrackVector>(stream->GetVideoTracks(), | |
394 &reports_, track_ids_); | |
395 } | |
396 | |
397 void StatsCollector::AddLocalAudioTrack(AudioTrackInterface* audio_track, | |
398 uint32_t ssrc) { | |
399 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
400 RTC_DCHECK(audio_track != NULL); | |
401 #if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON)) | |
402 for (const auto& track : local_audio_tracks_) | |
403 RTC_DCHECK(track.first != audio_track || track.second != ssrc); | |
404 #endif | |
405 | |
406 local_audio_tracks_.push_back(std::make_pair(audio_track, ssrc)); | |
407 | |
408 // Create the kStatsReportTypeTrack report for the new track if there is no | |
409 // report yet. | |
410 StatsReport::Id id(StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack, | |
411 audio_track->id())); | |
412 StatsReport* report = reports_.Find(id); | |
413 if (!report) { | |
414 report = reports_.InsertNew(id); | |
415 report->AddString(StatsReport::kStatsValueNameTrackId, audio_track->id()); | |
416 } | |
417 } | |
418 | |
419 void StatsCollector::RemoveLocalAudioTrack(AudioTrackInterface* audio_track, | |
420 uint32_t ssrc) { | |
421 RTC_DCHECK(audio_track != NULL); | |
422 local_audio_tracks_.erase(std::remove_if(local_audio_tracks_.begin(), | |
423 local_audio_tracks_.end(), | |
424 [audio_track, ssrc](const LocalAudioTrackVector::value_type& track) { | |
425 return track.first == audio_track && track.second == ssrc; | |
426 })); | |
427 } | |
428 | |
429 void StatsCollector::GetStats(MediaStreamTrackInterface* track, | |
430 StatsReports* reports) { | |
431 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
432 RTC_DCHECK(reports != NULL); | |
433 RTC_DCHECK(reports->empty()); | |
434 | |
435 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
436 | |
437 if (!track) { | |
438 reports->reserve(reports_.size()); | |
439 for (auto* r : reports_) | |
440 reports->push_back(r); | |
441 return; | |
442 } | |
443 | |
444 StatsReport* report = reports_.Find(StatsReport::NewTypedId( | |
445 StatsReport::kStatsReportTypeSession, pc_->session()->id())); | |
446 if (report) | |
447 reports->push_back(report); | |
448 | |
449 report = reports_.Find(StatsReport::NewTypedId( | |
450 StatsReport::kStatsReportTypeTrack, track->id())); | |
451 | |
452 if (!report) | |
453 return; | |
454 | |
455 reports->push_back(report); | |
456 | |
457 std::string track_id; | |
458 for (const auto* r : reports_) { | |
459 if (r->type() != StatsReport::kStatsReportTypeSsrc) | |
460 continue; | |
461 | |
462 const StatsReport::Value* v = | |
463 r->FindValue(StatsReport::kStatsValueNameTrackId); | |
464 if (v && v->string_val() == track->id()) | |
465 reports->push_back(r); | |
466 } | |
467 } | |
468 | |
469 void | |
470 StatsCollector::UpdateStats(PeerConnectionInterface::StatsOutputLevel level) { | |
471 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
472 double time_now = GetTimeNow(); | |
473 // Calls to UpdateStats() that occur less than kMinGatherStatsPeriod number of | |
474 // ms apart will be ignored. | |
475 const double kMinGatherStatsPeriod = 50; | |
476 if (stats_gathering_started_ != 0 && | |
477 stats_gathering_started_ + kMinGatherStatsPeriod > time_now) { | |
478 return; | |
479 } | |
480 stats_gathering_started_ = time_now; | |
481 | |
482 if (pc_->session()) { | |
483 // TODO(tommi): All of these hop over to the worker thread to fetch | |
484 // information. We could use an AsyncInvoker to run all of these and post | |
485 // the information back to the signaling thread where we can create and | |
486 // update stats reports. That would also clean up the threading story a bit | |
487 // since we'd be creating/updating the stats report objects consistently on | |
488 // the same thread (this class has no locks right now). | |
489 ExtractSessionInfo(); | |
490 ExtractVoiceInfo(); | |
491 ExtractVideoInfo(level); | |
492 ExtractDataInfo(); | |
493 UpdateTrackReports(); | |
494 } | |
495 } | |
496 | |
497 StatsReport* StatsCollector::PrepareReport( | |
498 bool local, | |
499 uint32_t ssrc, | |
500 const StatsReport::Id& transport_id, | |
501 StatsReport::Direction direction) { | |
502 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
503 StatsReport::Id id(StatsReport::NewIdWithDirection( | |
504 local ? StatsReport::kStatsReportTypeSsrc | |
505 : StatsReport::kStatsReportTypeRemoteSsrc, | |
506 rtc::ToString<uint32_t>(ssrc), direction)); | |
507 StatsReport* report = reports_.Find(id); | |
508 | |
509 // Use the ID of the track that is currently mapped to the SSRC, if any. | |
510 std::string track_id; | |
511 if (!GetTrackIdBySsrc(ssrc, &track_id, direction)) { | |
512 if (!report) { | |
513 // The ssrc is not used by any track or existing report, return NULL | |
514 // in such case to indicate no report is prepared for the ssrc. | |
515 return NULL; | |
516 } | |
517 | |
518 // The ssrc is not used by any existing track. Keeps the old track id | |
519 // since we want to report the stats for inactive ssrc. | |
520 const StatsReport::Value* v = | |
521 report->FindValue(StatsReport::kStatsValueNameTrackId); | |
522 if (v) | |
523 track_id = v->string_val(); | |
524 } | |
525 | |
526 if (!report) | |
527 report = reports_.InsertNew(id); | |
528 | |
529 // FYI - for remote reports, the timestamp will be overwritten later. | |
530 report->set_timestamp(stats_gathering_started_); | |
531 | |
532 report->AddInt64(StatsReport::kStatsValueNameSsrc, ssrc); | |
533 report->AddString(StatsReport::kStatsValueNameTrackId, track_id); | |
534 // Add the mapping of SSRC to transport. | |
535 report->AddId(StatsReport::kStatsValueNameTransportId, transport_id); | |
536 return report; | |
537 } | |
538 | |
539 StatsReport* StatsCollector::AddOneCertificateReport( | |
540 const rtc::SSLCertificate* cert, const StatsReport* issuer) { | |
541 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
542 | |
543 // TODO(bemasc): Move this computation to a helper class that caches these | |
544 // values to reduce CPU use in GetStats. This will require adding a fast | |
545 // SSLCertificate::Equals() method to detect certificate changes. | |
546 | |
547 std::string digest_algorithm; | |
548 if (!cert->GetSignatureDigestAlgorithm(&digest_algorithm)) | |
549 return nullptr; | |
550 | |
551 rtc::scoped_ptr<rtc::SSLFingerprint> ssl_fingerprint( | |
552 rtc::SSLFingerprint::Create(digest_algorithm, cert)); | |
553 | |
554 // SSLFingerprint::Create can fail if the algorithm returned by | |
555 // SSLCertificate::GetSignatureDigestAlgorithm is not supported by the | |
556 // implementation of SSLCertificate::ComputeDigest. This currently happens | |
557 // with MD5- and SHA-224-signed certificates when linked to libNSS. | |
558 if (!ssl_fingerprint) | |
559 return nullptr; | |
560 | |
561 std::string fingerprint = ssl_fingerprint->GetRfc4572Fingerprint(); | |
562 | |
563 rtc::Buffer der_buffer; | |
564 cert->ToDER(&der_buffer); | |
565 std::string der_base64; | |
566 rtc::Base64::EncodeFromArray(der_buffer.data(), der_buffer.size(), | |
567 &der_base64); | |
568 | |
569 StatsReport::Id id(StatsReport::NewTypedId( | |
570 StatsReport::kStatsReportTypeCertificate, fingerprint)); | |
571 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
572 report->set_timestamp(stats_gathering_started_); | |
573 report->AddString(StatsReport::kStatsValueNameFingerprint, fingerprint); | |
574 report->AddString(StatsReport::kStatsValueNameFingerprintAlgorithm, | |
575 digest_algorithm); | |
576 report->AddString(StatsReport::kStatsValueNameDer, der_base64); | |
577 if (issuer) | |
578 report->AddId(StatsReport::kStatsValueNameIssuerId, issuer->id()); | |
579 return report; | |
580 } | |
581 | |
582 StatsReport* StatsCollector::AddCertificateReports( | |
583 const rtc::SSLCertificate* cert) { | |
584 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
585 // Produces a chain of StatsReports representing this certificate and the rest | |
586 // of its chain, and adds those reports to |reports_|. The return value is | |
587 // the id of the leaf report. The provided cert must be non-null, so at least | |
588 // one report will always be provided and the returned string will never be | |
589 // empty. | |
590 RTC_DCHECK(cert != NULL); | |
591 | |
592 StatsReport* issuer = nullptr; | |
593 rtc::scoped_ptr<rtc::SSLCertChain> chain; | |
594 if (cert->GetChain(chain.accept())) { | |
595 // This loop runs in reverse, i.e. from root to leaf, so that each | |
596 // certificate's issuer's report ID is known before the child certificate's | |
597 // report is generated. The root certificate does not have an issuer ID | |
598 // value. | |
599 for (ptrdiff_t i = chain->GetSize() - 1; i >= 0; --i) { | |
600 const rtc::SSLCertificate& cert_i = chain->Get(i); | |
601 issuer = AddOneCertificateReport(&cert_i, issuer); | |
602 } | |
603 } | |
604 // Add the leaf certificate. | |
605 return AddOneCertificateReport(cert, issuer); | |
606 } | |
607 | |
608 StatsReport* StatsCollector::AddConnectionInfoReport( | |
609 const std::string& content_name, int component, int connection_id, | |
610 const StatsReport::Id& channel_report_id, | |
611 const cricket::ConnectionInfo& info) { | |
612 StatsReport::Id id(StatsReport::NewCandidatePairId(content_name, component, | |
613 connection_id)); | |
614 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
615 report->set_timestamp(stats_gathering_started_); | |
616 | |
617 const BoolForAdd bools[] = { | |
618 {StatsReport::kStatsValueNameActiveConnection, info.best_connection}, | |
619 {StatsReport::kStatsValueNameReceiving, info.receiving}, | |
620 {StatsReport::kStatsValueNameWritable, info.writable}, | |
621 }; | |
622 for (const auto& b : bools) | |
623 report->AddBoolean(b.name, b.value); | |
624 | |
625 report->AddId(StatsReport::kStatsValueNameChannelId, channel_report_id); | |
626 report->AddId(StatsReport::kStatsValueNameLocalCandidateId, | |
627 AddCandidateReport(info.local_candidate, true)->id()); | |
628 report->AddId(StatsReport::kStatsValueNameRemoteCandidateId, | |
629 AddCandidateReport(info.remote_candidate, false)->id()); | |
630 | |
631 const Int64ForAdd int64s[] = { | |
632 { StatsReport::kStatsValueNameBytesReceived, info.recv_total_bytes }, | |
633 { StatsReport::kStatsValueNameBytesSent, info.sent_total_bytes }, | |
634 { StatsReport::kStatsValueNamePacketsSent, info.sent_total_packets }, | |
635 { StatsReport::kStatsValueNameRtt, info.rtt }, | |
636 { StatsReport::kStatsValueNameSendPacketsDiscarded, | |
637 info.sent_discarded_packets }, | |
638 }; | |
639 for (const auto& i : int64s) | |
640 report->AddInt64(i.name, i.value); | |
641 | |
642 report->AddString(StatsReport::kStatsValueNameLocalAddress, | |
643 info.local_candidate.address().ToString()); | |
644 report->AddString(StatsReport::kStatsValueNameLocalCandidateType, | |
645 info.local_candidate.type()); | |
646 report->AddString(StatsReport::kStatsValueNameRemoteAddress, | |
647 info.remote_candidate.address().ToString()); | |
648 report->AddString(StatsReport::kStatsValueNameRemoteCandidateType, | |
649 info.remote_candidate.type()); | |
650 report->AddString(StatsReport::kStatsValueNameTransportType, | |
651 info.local_candidate.protocol()); | |
652 | |
653 return report; | |
654 } | |
655 | |
656 StatsReport* StatsCollector::AddCandidateReport( | |
657 const cricket::Candidate& candidate, | |
658 bool local) { | |
659 StatsReport::Id id(StatsReport::NewCandidateId(local, candidate.id())); | |
660 StatsReport* report = reports_.Find(id); | |
661 if (!report) { | |
662 report = reports_.InsertNew(id); | |
663 report->set_timestamp(stats_gathering_started_); | |
664 if (local) { | |
665 report->AddString(StatsReport::kStatsValueNameCandidateNetworkType, | |
666 AdapterTypeToStatsType(candidate.network_type())); | |
667 } | |
668 report->AddString(StatsReport::kStatsValueNameCandidateIPAddress, | |
669 candidate.address().ipaddr().ToString()); | |
670 report->AddString(StatsReport::kStatsValueNameCandidatePortNumber, | |
671 candidate.address().PortAsString()); | |
672 report->AddInt(StatsReport::kStatsValueNameCandidatePriority, | |
673 candidate.priority()); | |
674 report->AddString(StatsReport::kStatsValueNameCandidateType, | |
675 IceCandidateTypeToStatsType(candidate.type())); | |
676 report->AddString(StatsReport::kStatsValueNameCandidateTransportType, | |
677 candidate.protocol()); | |
678 } | |
679 | |
680 return report; | |
681 } | |
682 | |
683 void StatsCollector::ExtractSessionInfo() { | |
684 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
685 | |
686 // Extract information from the base session. | |
687 StatsReport::Id id(StatsReport::NewTypedId( | |
688 StatsReport::kStatsReportTypeSession, pc_->session()->id())); | |
689 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
690 report->set_timestamp(stats_gathering_started_); | |
691 report->AddBoolean(StatsReport::kStatsValueNameInitiator, | |
692 pc_->session()->initial_offerer()); | |
693 | |
694 SessionStats stats; | |
695 if (!pc_->session()->GetTransportStats(&stats)) { | |
696 return; | |
697 } | |
698 | |
699 // Store the proxy map away for use in SSRC reporting. | |
700 // TODO(tommi): This shouldn't be necessary if we post the stats back to the | |
701 // signaling thread after fetching them on the worker thread, then just use | |
702 // the proxy map directly from the session stats. | |
703 // As is, if GetStats() failed, we could be using old (incorrect?) proxy | |
704 // data. | |
705 proxy_to_transport_ = stats.proxy_to_transport; | |
706 | |
707 for (const auto& transport_iter : stats.transport_stats) { | |
708 // Attempt to get a copy of the certificates from the transport and | |
709 // expose them in stats reports. All channels in a transport share the | |
710 // same local and remote certificates. | |
711 // | |
712 StatsReport::Id local_cert_report_id, remote_cert_report_id; | |
713 rtc::scoped_refptr<rtc::RTCCertificate> certificate; | |
714 if (pc_->session()->GetLocalCertificate( | |
715 transport_iter.second.transport_name, &certificate)) { | |
716 StatsReport* r = AddCertificateReports(&(certificate->ssl_certificate())); | |
717 if (r) | |
718 local_cert_report_id = r->id(); | |
719 } | |
720 | |
721 rtc::scoped_ptr<rtc::SSLCertificate> cert; | |
722 if (pc_->session()->GetRemoteSSLCertificate( | |
723 transport_iter.second.transport_name, cert.accept())) { | |
724 StatsReport* r = AddCertificateReports(cert.get()); | |
725 if (r) | |
726 remote_cert_report_id = r->id(); | |
727 } | |
728 | |
729 for (const auto& channel_iter : transport_iter.second.channel_stats) { | |
730 StatsReport::Id id(StatsReport::NewComponentId( | |
731 transport_iter.second.transport_name, channel_iter.component)); | |
732 StatsReport* channel_report = reports_.ReplaceOrAddNew(id); | |
733 channel_report->set_timestamp(stats_gathering_started_); | |
734 channel_report->AddInt(StatsReport::kStatsValueNameComponent, | |
735 channel_iter.component); | |
736 if (local_cert_report_id.get()) { | |
737 channel_report->AddId(StatsReport::kStatsValueNameLocalCertificateId, | |
738 local_cert_report_id); | |
739 } | |
740 if (remote_cert_report_id.get()) { | |
741 channel_report->AddId(StatsReport::kStatsValueNameRemoteCertificateId, | |
742 remote_cert_report_id); | |
743 } | |
744 int srtp_crypto_suite = channel_iter.srtp_crypto_suite; | |
745 if (srtp_crypto_suite != rtc::SRTP_INVALID_CRYPTO_SUITE && | |
746 rtc::SrtpCryptoSuiteToName(srtp_crypto_suite).length()) { | |
747 channel_report->AddString( | |
748 StatsReport::kStatsValueNameSrtpCipher, | |
749 rtc::SrtpCryptoSuiteToName(srtp_crypto_suite)); | |
750 } | |
751 int ssl_cipher_suite = channel_iter.ssl_cipher_suite; | |
752 if (ssl_cipher_suite != rtc::TLS_NULL_WITH_NULL_NULL && | |
753 rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher_suite) | |
754 .length()) { | |
755 channel_report->AddString( | |
756 StatsReport::kStatsValueNameDtlsCipher, | |
757 rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher_suite)); | |
758 } | |
759 | |
760 int connection_id = 0; | |
761 for (const cricket::ConnectionInfo& info : | |
762 channel_iter.connection_infos) { | |
763 StatsReport* connection_report = AddConnectionInfoReport( | |
764 transport_iter.first, channel_iter.component, connection_id++, | |
765 channel_report->id(), info); | |
766 if (info.best_connection) { | |
767 channel_report->AddId( | |
768 StatsReport::kStatsValueNameSelectedCandidatePairId, | |
769 connection_report->id()); | |
770 } | |
771 } | |
772 } | |
773 } | |
774 } | |
775 | |
776 void StatsCollector::ExtractVoiceInfo() { | |
777 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
778 | |
779 if (!pc_->session()->voice_channel()) { | |
780 return; | |
781 } | |
782 cricket::VoiceMediaInfo voice_info; | |
783 if (!pc_->session()->voice_channel()->GetStats(&voice_info)) { | |
784 LOG(LS_ERROR) << "Failed to get voice channel stats."; | |
785 return; | |
786 } | |
787 | |
788 // TODO(tommi): The above code should run on the worker thread and post the | |
789 // results back to the signaling thread, where we can add data to the reports. | |
790 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
791 | |
792 StatsReport::Id transport_id(GetTransportIdFromProxy( | |
793 proxy_to_transport_, pc_->session()->voice_channel()->content_name())); | |
794 if (!transport_id.get()) { | |
795 LOG(LS_ERROR) << "Failed to get transport name for proxy " | |
796 << pc_->session()->voice_channel()->content_name(); | |
797 return; | |
798 } | |
799 | |
800 ExtractStatsFromList(voice_info.receivers, transport_id, this, | |
801 StatsReport::kReceive); | |
802 ExtractStatsFromList(voice_info.senders, transport_id, this, | |
803 StatsReport::kSend); | |
804 | |
805 UpdateStatsFromExistingLocalAudioTracks(); | |
806 } | |
807 | |
808 void StatsCollector::ExtractVideoInfo( | |
809 PeerConnectionInterface::StatsOutputLevel level) { | |
810 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
811 | |
812 if (!pc_->session()->video_channel()) | |
813 return; | |
814 | |
815 cricket::VideoMediaInfo video_info; | |
816 if (!pc_->session()->video_channel()->GetStats(&video_info)) { | |
817 LOG(LS_ERROR) << "Failed to get video channel stats."; | |
818 return; | |
819 } | |
820 | |
821 // TODO(tommi): The above code should run on the worker thread and post the | |
822 // results back to the signaling thread, where we can add data to the reports. | |
823 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
824 | |
825 StatsReport::Id transport_id(GetTransportIdFromProxy( | |
826 proxy_to_transport_, pc_->session()->video_channel()->content_name())); | |
827 if (!transport_id.get()) { | |
828 LOG(LS_ERROR) << "Failed to get transport name for proxy " | |
829 << pc_->session()->video_channel()->content_name(); | |
830 return; | |
831 } | |
832 ExtractStatsFromList(video_info.receivers, transport_id, this, | |
833 StatsReport::kReceive); | |
834 ExtractStatsFromList(video_info.senders, transport_id, this, | |
835 StatsReport::kSend); | |
836 if (video_info.bw_estimations.size() != 1) { | |
837 LOG(LS_ERROR) << "BWEs count: " << video_info.bw_estimations.size(); | |
838 } else { | |
839 StatsReport::Id report_id(StatsReport::NewBandwidthEstimationId()); | |
840 StatsReport* report = reports_.FindOrAddNew(report_id); | |
841 ExtractStats( | |
842 video_info.bw_estimations[0], stats_gathering_started_, level, report); | |
843 } | |
844 } | |
845 | |
846 void StatsCollector::ExtractDataInfo() { | |
847 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
848 | |
849 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
850 | |
851 for (const auto& dc : pc_->sctp_data_channels()) { | |
852 StatsReport::Id id(StatsReport::NewTypedIntId( | |
853 StatsReport::kStatsReportTypeDataChannel, dc->id())); | |
854 StatsReport* report = reports_.ReplaceOrAddNew(id); | |
855 report->set_timestamp(stats_gathering_started_); | |
856 report->AddString(StatsReport::kStatsValueNameLabel, dc->label()); | |
857 report->AddInt(StatsReport::kStatsValueNameDataChannelId, dc->id()); | |
858 report->AddString(StatsReport::kStatsValueNameProtocol, dc->protocol()); | |
859 report->AddString(StatsReport::kStatsValueNameState, | |
860 DataChannelInterface::DataStateString(dc->state())); | |
861 } | |
862 } | |
863 | |
864 StatsReport* StatsCollector::GetReport(const StatsReport::StatsType& type, | |
865 const std::string& id, | |
866 StatsReport::Direction direction) { | |
867 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
868 RTC_DCHECK(type == StatsReport::kStatsReportTypeSsrc || | |
869 type == StatsReport::kStatsReportTypeRemoteSsrc); | |
870 return reports_.Find(StatsReport::NewIdWithDirection(type, id, direction)); | |
871 } | |
872 | |
873 void StatsCollector::UpdateStatsFromExistingLocalAudioTracks() { | |
874 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
875 // Loop through the existing local audio tracks. | |
876 for (const auto& it : local_audio_tracks_) { | |
877 AudioTrackInterface* track = it.first; | |
878 uint32_t ssrc = it.second; | |
879 StatsReport* report = | |
880 GetReport(StatsReport::kStatsReportTypeSsrc, | |
881 rtc::ToString<uint32_t>(ssrc), StatsReport::kSend); | |
882 if (report == NULL) { | |
883 // This can happen if a local audio track is added to a stream on the | |
884 // fly and the report has not been set up yet. Do nothing in this case. | |
885 LOG(LS_ERROR) << "Stats report does not exist for ssrc " << ssrc; | |
886 continue; | |
887 } | |
888 | |
889 // The same ssrc can be used by both local and remote audio tracks. | |
890 const StatsReport::Value* v = | |
891 report->FindValue(StatsReport::kStatsValueNameTrackId); | |
892 if (!v || v->string_val() != track->id()) | |
893 continue; | |
894 | |
895 report->set_timestamp(stats_gathering_started_); | |
896 UpdateReportFromAudioTrack(track, report); | |
897 } | |
898 } | |
899 | |
900 void StatsCollector::UpdateReportFromAudioTrack(AudioTrackInterface* track, | |
901 StatsReport* report) { | |
902 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
903 RTC_DCHECK(track != NULL); | |
904 | |
905 // Don't overwrite report values if they're not available. | |
906 int signal_level; | |
907 if (track->GetSignalLevel(&signal_level)) { | |
908 RTC_DCHECK_GE(signal_level, 0); | |
909 report->AddInt(StatsReport::kStatsValueNameAudioInputLevel, signal_level); | |
910 } | |
911 | |
912 auto audio_processor(track->GetAudioProcessor()); | |
913 | |
914 if (audio_processor.get()) { | |
915 AudioProcessorInterface::AudioProcessorStats stats; | |
916 audio_processor->GetStats(&stats); | |
917 | |
918 SetAudioProcessingStats( | |
919 report, stats.typing_noise_detected, stats.echo_return_loss, | |
920 stats.echo_return_loss_enhancement, stats.echo_delay_median_ms, | |
921 stats.aec_quality_min, stats.echo_delay_std_ms); | |
922 } | |
923 } | |
924 | |
925 bool StatsCollector::GetTrackIdBySsrc(uint32_t ssrc, | |
926 std::string* track_id, | |
927 StatsReport::Direction direction) { | |
928 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
929 if (direction == StatsReport::kSend) { | |
930 if (!pc_->session()->GetLocalTrackIdBySsrc(ssrc, track_id)) { | |
931 LOG(LS_WARNING) << "The SSRC " << ssrc | |
932 << " is not associated with a sending track"; | |
933 return false; | |
934 } | |
935 } else { | |
936 RTC_DCHECK(direction == StatsReport::kReceive); | |
937 if (!pc_->session()->GetRemoteTrackIdBySsrc(ssrc, track_id)) { | |
938 LOG(LS_WARNING) << "The SSRC " << ssrc | |
939 << " is not associated with a receiving track"; | |
940 return false; | |
941 } | |
942 } | |
943 | |
944 return true; | |
945 } | |
946 | |
947 void StatsCollector::UpdateTrackReports() { | |
948 RTC_DCHECK(pc_->session()->signaling_thread()->IsCurrent()); | |
949 | |
950 rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls; | |
951 | |
952 for (const auto& entry : track_ids_) { | |
953 StatsReport* report = entry.second; | |
954 report->set_timestamp(stats_gathering_started_); | |
955 } | |
956 } | |
957 | |
958 void StatsCollector::ClearUpdateStatsCacheForTest() { | |
959 stats_gathering_started_ = 0; | |
960 } | |
961 | |
962 } // namespace webrtc | |
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