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webrtc/pc/statscollector.cc
Jonas Olsson 6b1985de95 Reimplement rtc::ToString and rtc::FromString without streams. 
Bug: webrtc:8982
Change-Id: I3977435b035fdebef449732301d6e77fc899e7ba
Reviewed-on: https://webrtc-review.googlesource.com/86941
Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24319}
2018-08-16 16:14:01 +00:00

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/*
* Copyright 2012 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 "pc/statscollector.h"
#include <memory>
#include <set>
#include <utility>
#include <vector>
#include "pc/channel.h"
#include "pc/peerconnection.h"
#include "rtc_base/checks.h"
#include "rtc_base/third_party/base64/base64.h"
namespace webrtc {
namespace {
// The following is the enum RTCStatsIceCandidateType from
// http://w3c.github.io/webrtc-stats/#rtcstatsicecandidatetype-enum such that
// our stats report for ice candidate type could conform to that.
const char STATSREPORT_LOCAL_PORT_TYPE[] = "host";
const char STATSREPORT_STUN_PORT_TYPE[] = "serverreflexive";
const char STATSREPORT_PRFLX_PORT_TYPE[] = "peerreflexive";
const char STATSREPORT_RELAY_PORT_TYPE[] = "relayed";
// Strings used by the stats collector to report adapter types. This fits the
// general stype of http://w3c.github.io/webrtc-stats than what
// AdapterTypeToString does.
const char* STATSREPORT_ADAPTER_TYPE_ETHERNET = "lan";
const char* STATSREPORT_ADAPTER_TYPE_WIFI = "wlan";
const char* STATSREPORT_ADAPTER_TYPE_WWAN = "wwan";
const char* STATSREPORT_ADAPTER_TYPE_VPN = "vpn";
const char* STATSREPORT_ADAPTER_TYPE_LOOPBACK = "loopback";
const char* STATSREPORT_ADAPTER_TYPE_WILDCARD = "wildcard";
template <typename ValueType>
struct TypeForAdd {
const StatsReport::StatsValueName name;
const ValueType& value;
};
typedef TypeForAdd<bool> BoolForAdd;
typedef TypeForAdd<float> FloatForAdd;
typedef TypeForAdd<int64_t> Int64ForAdd;
typedef TypeForAdd<int> IntForAdd;
StatsReport* AddTrackReport(StatsCollection* reports,
const std::string& track_id) {
// Adds an empty track report.
StatsReport::Id id(
StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack, track_id));
StatsReport* report = reports->ReplaceOrAddNew(id);
report->AddString(StatsReport::kStatsValueNameTrackId, track_id);
return report;
}
template <class Track>
void CreateTrackReport(const Track* track,
StatsCollection* reports,
TrackIdMap* track_ids) {
const std::string& track_id = track->id();
StatsReport* report = AddTrackReport(reports, track_id);
RTC_DCHECK(report != nullptr);
(*track_ids)[track_id] = report;
}
template <class TrackVector>
void CreateTrackReports(const TrackVector& tracks,
StatsCollection* reports,
TrackIdMap* track_ids) {
for (const auto& track : tracks) {
CreateTrackReport(track.get(), reports, track_ids);
}
}
void ExtractCommonSendProperties(const cricket::MediaSenderInfo& info,
StatsReport* report) {
report->AddString(StatsReport::kStatsValueNameCodecName, info.codec_name);
report->AddInt64(StatsReport::kStatsValueNameBytesSent, info.bytes_sent);
if (info.rtt_ms >= 0) {
report->AddInt64(StatsReport::kStatsValueNameRtt, info.rtt_ms);
}
}
void ExtractCommonReceiveProperties(const cricket::MediaReceiverInfo& info,
StatsReport* report) {
report->AddString(StatsReport::kStatsValueNameCodecName, info.codec_name);
}
void SetAudioProcessingStats(StatsReport* report,
bool typing_noise_detected,
const AudioProcessingStats& apm_stats) {
report->AddBoolean(StatsReport::kStatsValueNameTypingNoiseState,
typing_noise_detected);
if (apm_stats.delay_median_ms) {
report->AddInt(StatsReport::kStatsValueNameEchoDelayMedian,
*apm_stats.delay_median_ms);
}
if (apm_stats.delay_standard_deviation_ms) {
report->AddInt(StatsReport::kStatsValueNameEchoDelayStdDev,
*apm_stats.delay_standard_deviation_ms);
}
if (apm_stats.echo_return_loss) {
report->AddInt(StatsReport::kStatsValueNameEchoReturnLoss,
*apm_stats.echo_return_loss);
}
if (apm_stats.echo_return_loss_enhancement) {
report->AddInt(StatsReport::kStatsValueNameEchoReturnLossEnhancement,
*apm_stats.echo_return_loss_enhancement);
}
if (apm_stats.residual_echo_likelihood) {
report->AddFloat(StatsReport::kStatsValueNameResidualEchoLikelihood,
static_cast<float>(*apm_stats.residual_echo_likelihood));
}
if (apm_stats.residual_echo_likelihood_recent_max) {
report->AddFloat(
StatsReport::kStatsValueNameResidualEchoLikelihoodRecentMax,
static_cast<float>(*apm_stats.residual_echo_likelihood_recent_max));
}
if (apm_stats.divergent_filter_fraction) {
report->AddFloat(StatsReport::kStatsValueNameAecDivergentFilterFraction,
static_cast<float>(*apm_stats.divergent_filter_fraction));
}
}
void ExtractStats(const cricket::VoiceReceiverInfo& info, StatsReport* report) {
ExtractCommonReceiveProperties(info, report);
const FloatForAdd floats[] = {
{StatsReport::kStatsValueNameExpandRate, info.expand_rate},
{StatsReport::kStatsValueNameSecondaryDecodedRate,
info.secondary_decoded_rate},
{StatsReport::kStatsValueNameSecondaryDiscardedRate,
info.secondary_discarded_rate},
{StatsReport::kStatsValueNameSpeechExpandRate, info.speech_expand_rate},
{StatsReport::kStatsValueNameAccelerateRate, info.accelerate_rate},
{StatsReport::kStatsValueNamePreemptiveExpandRate,
info.preemptive_expand_rate},
{StatsReport::kStatsValueNameTotalAudioEnergy, info.total_output_energy},
{StatsReport::kStatsValueNameTotalSamplesDuration,
info.total_output_duration}};
const IntForAdd ints[] = {
{StatsReport::kStatsValueNameCurrentDelayMs, info.delay_estimate_ms},
{StatsReport::kStatsValueNameDecodingCNG, info.decoding_cng},
{StatsReport::kStatsValueNameDecodingCTN, info.decoding_calls_to_neteq},
{StatsReport::kStatsValueNameDecodingCTSG,
info.decoding_calls_to_silence_generator},
{StatsReport::kStatsValueNameDecodingMutedOutput,
info.decoding_muted_output},
{StatsReport::kStatsValueNameDecodingNormal, info.decoding_normal},
{StatsReport::kStatsValueNameDecodingPLC, info.decoding_plc},
{StatsReport::kStatsValueNameDecodingPLCCNG, info.decoding_plc_cng},
{StatsReport::kStatsValueNameJitterBufferMs, info.jitter_buffer_ms},
{StatsReport::kStatsValueNameJitterReceived, info.jitter_ms},
{StatsReport::kStatsValueNamePacketsLost, info.packets_lost},
{StatsReport::kStatsValueNamePacketsReceived, info.packets_rcvd},
{StatsReport::kStatsValueNamePreferredJitterBufferMs,
info.jitter_buffer_preferred_ms},
};
for (const auto& f : floats)
report->AddFloat(f.name, f.value);
for (const auto& i : ints)
report->AddInt(i.name, i.value);
if (info.audio_level >= 0) {
report->AddInt(StatsReport::kStatsValueNameAudioOutputLevel,
info.audio_level);
}
report->AddInt64(StatsReport::kStatsValueNameBytesReceived, info.bytes_rcvd);
if (info.capture_start_ntp_time_ms >= 0) {
report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs,
info.capture_start_ntp_time_ms);
}
report->AddString(StatsReport::kStatsValueNameMediaType, "audio");
}
void ExtractStats(const cricket::VoiceSenderInfo& info, StatsReport* report) {
ExtractCommonSendProperties(info, report);
SetAudioProcessingStats(report, info.typing_noise_detected,
info.apm_statistics);
const FloatForAdd floats[] = {
{StatsReport::kStatsValueNameTotalAudioEnergy, info.total_input_energy},
{StatsReport::kStatsValueNameTotalSamplesDuration,
info.total_input_duration}};
RTC_DCHECK_GE(info.audio_level, 0);
const IntForAdd ints[] = {
{StatsReport::kStatsValueNameAudioInputLevel, info.audio_level},
{StatsReport::kStatsValueNameJitterReceived, info.jitter_ms},
{StatsReport::kStatsValueNamePacketsLost, info.packets_lost},
{StatsReport::kStatsValueNamePacketsSent, info.packets_sent},
};
for (const auto& f : floats) {
report->AddFloat(f.name, f.value);
}
for (const auto& i : ints) {
if (i.value >= 0) {
report->AddInt(i.name, i.value);
}
}
report->AddString(StatsReport::kStatsValueNameMediaType, "audio");
if (info.ana_statistics.bitrate_action_counter) {
report->AddInt(StatsReport::kStatsValueNameAnaBitrateActionCounter,
*info.ana_statistics.bitrate_action_counter);
}
if (info.ana_statistics.channel_action_counter) {
report->AddInt(StatsReport::kStatsValueNameAnaChannelActionCounter,
*info.ana_statistics.channel_action_counter);
}
if (info.ana_statistics.dtx_action_counter) {
report->AddInt(StatsReport::kStatsValueNameAnaDtxActionCounter,
*info.ana_statistics.dtx_action_counter);
}
if (info.ana_statistics.fec_action_counter) {
report->AddInt(StatsReport::kStatsValueNameAnaFecActionCounter,
*info.ana_statistics.fec_action_counter);
}
if (info.ana_statistics.frame_length_increase_counter) {
report->AddInt(StatsReport::kStatsValueNameAnaFrameLengthIncreaseCounter,
*info.ana_statistics.frame_length_increase_counter);
}
if (info.ana_statistics.frame_length_decrease_counter) {
report->AddInt(StatsReport::kStatsValueNameAnaFrameLengthDecreaseCounter,
*info.ana_statistics.frame_length_decrease_counter);
}
if (info.ana_statistics.uplink_packet_loss_fraction) {
report->AddFloat(StatsReport::kStatsValueNameAnaUplinkPacketLossFraction,
*info.ana_statistics.uplink_packet_loss_fraction);
}
}
void ExtractStats(const cricket::VideoReceiverInfo& info, StatsReport* report) {
ExtractCommonReceiveProperties(info, report);
report->AddString(StatsReport::kStatsValueNameCodecImplementationName,
info.decoder_implementation_name);
report->AddInt64(StatsReport::kStatsValueNameBytesReceived, info.bytes_rcvd);
if (info.capture_start_ntp_time_ms >= 0) {
report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs,
info.capture_start_ntp_time_ms);
}
if (info.qp_sum)
report->AddInt64(StatsReport::kStatsValueNameQpSum, *info.qp_sum);
const IntForAdd ints[] = {
{StatsReport::kStatsValueNameCurrentDelayMs, info.current_delay_ms},
{StatsReport::kStatsValueNameDecodeMs, info.decode_ms},
{StatsReport::kStatsValueNameFirsSent, info.firs_sent},
{StatsReport::kStatsValueNameFrameHeightReceived, info.frame_height},
{StatsReport::kStatsValueNameFrameRateDecoded, info.framerate_decoded},
{StatsReport::kStatsValueNameFrameRateOutput, info.framerate_output},
{StatsReport::kStatsValueNameFrameRateReceived, info.framerate_rcvd},
{StatsReport::kStatsValueNameFrameWidthReceived, info.frame_width},
{StatsReport::kStatsValueNameJitterBufferMs, info.jitter_buffer_ms},
{StatsReport::kStatsValueNameMaxDecodeMs, info.max_decode_ms},
{StatsReport::kStatsValueNameMinPlayoutDelayMs,
info.min_playout_delay_ms},
{StatsReport::kStatsValueNameNacksSent, info.nacks_sent},
{StatsReport::kStatsValueNamePacketsLost, info.packets_lost},
{StatsReport::kStatsValueNamePacketsReceived, info.packets_rcvd},
{StatsReport::kStatsValueNamePlisSent, info.plis_sent},
{StatsReport::kStatsValueNameRenderDelayMs, info.render_delay_ms},
{StatsReport::kStatsValueNameTargetDelayMs, info.target_delay_ms},
{StatsReport::kStatsValueNameFramesDecoded, info.frames_decoded},
};
for (const auto& i : ints)
report->AddInt(i.name, i.value);
report->AddString(StatsReport::kStatsValueNameMediaType, "video");
if (info.timing_frame_info) {
report->AddString(StatsReport::kStatsValueNameTimingFrameInfo,
info.timing_frame_info->ToString());
}
report->AddInt64(StatsReport::kStatsValueNameInterframeDelayMaxMs,
info.interframe_delay_max_ms);
report->AddString(
StatsReport::kStatsValueNameContentType,
webrtc::videocontenttypehelpers::ToString(info.content_type));
}
void ExtractStats(const cricket::VideoSenderInfo& info, StatsReport* report) {
ExtractCommonSendProperties(info, report);
report->AddString(StatsReport::kStatsValueNameCodecImplementationName,
info.encoder_implementation_name);
report->AddBoolean(StatsReport::kStatsValueNameBandwidthLimitedResolution,
(info.adapt_reason & 0x2) > 0);
report->AddBoolean(StatsReport::kStatsValueNameCpuLimitedResolution,
(info.adapt_reason & 0x1) > 0);
report->AddBoolean(StatsReport::kStatsValueNameHasEnteredLowResolution,
info.has_entered_low_resolution);
if (info.qp_sum)
report->AddInt(StatsReport::kStatsValueNameQpSum, *info.qp_sum);
const IntForAdd ints[] = {
{StatsReport::kStatsValueNameAdaptationChanges, info.adapt_changes},
{StatsReport::kStatsValueNameAvgEncodeMs, info.avg_encode_ms},
{StatsReport::kStatsValueNameEncodeUsagePercent,
info.encode_usage_percent},
{StatsReport::kStatsValueNameFirsReceived, info.firs_rcvd},
{StatsReport::kStatsValueNameFrameHeightSent, info.send_frame_height},
{StatsReport::kStatsValueNameFrameRateInput, info.framerate_input},
{StatsReport::kStatsValueNameFrameRateSent, info.framerate_sent},
{StatsReport::kStatsValueNameFrameWidthSent, info.send_frame_width},
{StatsReport::kStatsValueNameNacksReceived, info.nacks_rcvd},
{StatsReport::kStatsValueNamePacketsLost, info.packets_lost},
{StatsReport::kStatsValueNamePacketsSent, info.packets_sent},
{StatsReport::kStatsValueNamePlisReceived, info.plis_rcvd},
{StatsReport::kStatsValueNameFramesEncoded, info.frames_encoded},
{StatsReport::kStatsValueNameHugeFramesSent, info.huge_frames_sent},
};
for (const auto& i : ints)
report->AddInt(i.name, i.value);
report->AddString(StatsReport::kStatsValueNameMediaType, "video");
report->AddString(
StatsReport::kStatsValueNameContentType,
webrtc::videocontenttypehelpers::ToString(info.content_type));
}
void ExtractStats(const cricket::BandwidthEstimationInfo& info,
double stats_gathering_started,
StatsReport* report) {
RTC_DCHECK(report->type() == StatsReport::kStatsReportTypeBwe);
report->set_timestamp(stats_gathering_started);
const IntForAdd ints[] = {
{StatsReport::kStatsValueNameAvailableSendBandwidth,
info.available_send_bandwidth},
{StatsReport::kStatsValueNameAvailableReceiveBandwidth,
info.available_recv_bandwidth},
{StatsReport::kStatsValueNameTargetEncBitrate, info.target_enc_bitrate},
{StatsReport::kStatsValueNameActualEncBitrate, info.actual_enc_bitrate},
{StatsReport::kStatsValueNameRetransmitBitrate, info.retransmit_bitrate},
{StatsReport::kStatsValueNameTransmitBitrate, info.transmit_bitrate},
};
for (const auto& i : ints)
report->AddInt(i.name, i.value);
report->AddInt64(StatsReport::kStatsValueNameBucketDelay, info.bucket_delay);
}
void ExtractRemoteStats(const cricket::MediaSenderInfo& info,
StatsReport* report) {
report->set_timestamp(info.remote_stats[0].timestamp);
// TODO(hta): Extract some stats here.
}
void ExtractRemoteStats(const cricket::MediaReceiverInfo& info,
StatsReport* report) {
report->set_timestamp(info.remote_stats[0].timestamp);
// TODO(hta): Extract some stats here.
}
// Template to extract stats from a data vector.
// In order to use the template, the functions that are called from it,
// ExtractStats and ExtractRemoteStats, must be defined and overloaded
// for each type.
template <typename T>
void ExtractStatsFromList(const std::vector<T>& data,
const StatsReport::Id& transport_id,
StatsCollector* collector,
StatsReport::Direction direction) {
for (const auto& d : data) {
uint32_t ssrc = d.ssrc();
// Each track can have stats for both local and remote objects.
// TODO(hta): Handle the case of multiple SSRCs per object.
StatsReport* report =
collector->PrepareReport(true, ssrc, transport_id, direction);
if (report)
ExtractStats(d, report);
if (!d.remote_stats.empty()) {
report = collector->PrepareReport(false, ssrc, transport_id, direction);
if (report)
ExtractRemoteStats(d, report);
}
}
}
} // namespace
const char* IceCandidateTypeToStatsType(const std::string& candidate_type) {
if (candidate_type == cricket::LOCAL_PORT_TYPE) {
return STATSREPORT_LOCAL_PORT_TYPE;
}
if (candidate_type == cricket::STUN_PORT_TYPE) {
return STATSREPORT_STUN_PORT_TYPE;
}
if (candidate_type == cricket::PRFLX_PORT_TYPE) {
return STATSREPORT_PRFLX_PORT_TYPE;
}
if (candidate_type == cricket::RELAY_PORT_TYPE) {
return STATSREPORT_RELAY_PORT_TYPE;
}
RTC_NOTREACHED();
return "unknown";
}
const char* AdapterTypeToStatsType(rtc::AdapterType type) {
switch (type) {
case rtc::ADAPTER_TYPE_UNKNOWN:
return "unknown";
case rtc::ADAPTER_TYPE_ETHERNET:
return STATSREPORT_ADAPTER_TYPE_ETHERNET;
case rtc::ADAPTER_TYPE_WIFI:
return STATSREPORT_ADAPTER_TYPE_WIFI;
case rtc::ADAPTER_TYPE_CELLULAR:
return STATSREPORT_ADAPTER_TYPE_WWAN;
case rtc::ADAPTER_TYPE_VPN:
return STATSREPORT_ADAPTER_TYPE_VPN;
case rtc::ADAPTER_TYPE_LOOPBACK:
return STATSREPORT_ADAPTER_TYPE_LOOPBACK;
case rtc::ADAPTER_TYPE_ANY:
return STATSREPORT_ADAPTER_TYPE_WILDCARD;
default:
RTC_NOTREACHED();
return "";
}
}
StatsCollector::StatsCollector(PeerConnectionInternal* pc)
: pc_(pc), stats_gathering_started_(0) {
RTC_DCHECK(pc_);
}
StatsCollector::~StatsCollector() {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
}
// Wallclock time in ms.
double StatsCollector::GetTimeNow() {
return static_cast<double>(rtc::TimeUTCMillis());
}
// Adds a MediaStream with tracks that can be used as a |selector| in a call
// to GetStats.
void StatsCollector::AddStream(MediaStreamInterface* stream) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
RTC_DCHECK(stream != NULL);
CreateTrackReports<AudioTrackVector>(stream->GetAudioTracks(), &reports_,
&track_ids_);
CreateTrackReports<VideoTrackVector>(stream->GetVideoTracks(), &reports_,
&track_ids_);
}
void StatsCollector::AddTrack(MediaStreamTrackInterface* track) {
if (track->kind() == MediaStreamTrackInterface::kAudioKind) {
CreateTrackReport(static_cast<AudioTrackInterface*>(track), &reports_,
&track_ids_);
} else if (track->kind() == MediaStreamTrackInterface::kVideoKind) {
CreateTrackReport(static_cast<VideoTrackInterface*>(track), &reports_,
&track_ids_);
} else {
RTC_NOTREACHED() << "Illegal track kind";
}
}
void StatsCollector::AddLocalAudioTrack(AudioTrackInterface* audio_track,
uint32_t ssrc) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
RTC_DCHECK(audio_track != NULL);
#if RTC_DCHECK_IS_ON
for (const auto& track : local_audio_tracks_)
RTC_DCHECK(track.first != audio_track || track.second != ssrc);
#endif
local_audio_tracks_.push_back(std::make_pair(audio_track, ssrc));
// Create the kStatsReportTypeTrack report for the new track if there is no
// report yet.
StatsReport::Id id(StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack,
audio_track->id()));
StatsReport* report = reports_.Find(id);
if (!report) {
report = reports_.InsertNew(id);
report->AddString(StatsReport::kStatsValueNameTrackId, audio_track->id());
}
}
void StatsCollector::RemoveLocalAudioTrack(AudioTrackInterface* audio_track,
uint32_t ssrc) {
RTC_DCHECK(audio_track != NULL);
local_audio_tracks_.erase(
std::remove_if(
local_audio_tracks_.begin(), local_audio_tracks_.end(),
[audio_track, ssrc](const LocalAudioTrackVector::value_type& track) {
return track.first == audio_track && track.second == ssrc;
}),
local_audio_tracks_.end());
}
void StatsCollector::GetStats(MediaStreamTrackInterface* track,
StatsReports* reports) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
RTC_DCHECK(reports != NULL);
RTC_DCHECK(reports->empty());
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
if (!track) {
reports->reserve(reports_.size());
for (auto* r : reports_)
reports->push_back(r);
return;
}
StatsReport* report = reports_.Find(StatsReport::NewTypedId(
StatsReport::kStatsReportTypeSession, pc_->session_id()));
if (report)
reports->push_back(report);
report = reports_.Find(
StatsReport::NewTypedId(StatsReport::kStatsReportTypeTrack, track->id()));
if (!report)
return;
reports->push_back(report);
std::string track_id;
for (const auto* r : reports_) {
if (r->type() != StatsReport::kStatsReportTypeSsrc)
continue;
const StatsReport::Value* v =
r->FindValue(StatsReport::kStatsValueNameTrackId);
if (v && v->string_val() == track->id())
reports->push_back(r);
}
}
void StatsCollector::UpdateStats(
PeerConnectionInterface::StatsOutputLevel level) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
double time_now = GetTimeNow();
// Calls to UpdateStats() that occur less than kMinGatherStatsPeriod number of
// ms apart will be ignored.
const double kMinGatherStatsPeriod = 50;
if (stats_gathering_started_ != 0 &&
stats_gathering_started_ + kMinGatherStatsPeriod > time_now) {
return;
}
stats_gathering_started_ = time_now;
// TODO(tommi): All of these hop over to the worker thread to fetch
// information. We could use an AsyncInvoker to run all of these and post
// the information back to the signaling thread where we can create and
// update stats reports. That would also clean up the threading story a bit
// since we'd be creating/updating the stats report objects consistently on
// the same thread (this class has no locks right now).
ExtractSessionInfo();
ExtractBweInfo();
ExtractMediaInfo();
ExtractSenderInfo();
ExtractDataInfo();
UpdateTrackReports();
}
StatsReport* StatsCollector::PrepareReport(bool local,
uint32_t ssrc,
const StatsReport::Id& transport_id,
StatsReport::Direction direction) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
StatsReport::Id id(StatsReport::NewIdWithDirection(
local ? StatsReport::kStatsReportTypeSsrc
: StatsReport::kStatsReportTypeRemoteSsrc,
rtc::ToString(ssrc), direction));
StatsReport* report = reports_.Find(id);
// Use the ID of the track that is currently mapped to the SSRC, if any.
std::string track_id;
if (!GetTrackIdBySsrc(ssrc, &track_id, direction)) {
// The SSRC is not used by any existing track (or lookup failed since the
// SSRC wasn't signaled in SDP). Try copying the track ID from a previous
// report: if one exists.
if (report) {
const StatsReport::Value* v =
report->FindValue(StatsReport::kStatsValueNameTrackId);
if (v)
track_id = v->string_val();
}
}
if (!report)
report = reports_.InsertNew(id);
// FYI - for remote reports, the timestamp will be overwritten later.
report->set_timestamp(stats_gathering_started_);
report->AddInt64(StatsReport::kStatsValueNameSsrc, ssrc);
if (!track_id.empty()) {
report->AddString(StatsReport::kStatsValueNameTrackId, track_id);
}
// Add the mapping of SSRC to transport.
report->AddId(StatsReport::kStatsValueNameTransportId, transport_id);
return report;
}
bool StatsCollector::IsValidTrack(const std::string& track_id) {
return reports_.Find(StatsReport::NewTypedId(
StatsReport::kStatsReportTypeTrack, track_id)) != nullptr;
}
StatsReport* StatsCollector::AddCertificateReports(
std::unique_ptr<rtc::SSLCertificateStats> cert_stats) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
StatsReport* first_report = nullptr;
StatsReport* prev_report = nullptr;
for (rtc::SSLCertificateStats* stats = cert_stats.get(); stats;
stats = stats->issuer.get()) {
StatsReport::Id id(StatsReport::NewTypedId(
StatsReport::kStatsReportTypeCertificate, stats->fingerprint));
StatsReport* report = reports_.ReplaceOrAddNew(id);
report->set_timestamp(stats_gathering_started_);
report->AddString(StatsReport::kStatsValueNameFingerprint,
stats->fingerprint);
report->AddString(StatsReport::kStatsValueNameFingerprintAlgorithm,
stats->fingerprint_algorithm);
report->AddString(StatsReport::kStatsValueNameDer,
stats->base64_certificate);
if (!first_report)
first_report = report;
else
prev_report->AddId(StatsReport::kStatsValueNameIssuerId, id);
prev_report = report;
}
return first_report;
}
StatsReport* StatsCollector::AddConnectionInfoReport(
const std::string& content_name,
int component,
int connection_id,
const StatsReport::Id& channel_report_id,
const cricket::ConnectionInfo& info) {
StatsReport::Id id(
StatsReport::NewCandidatePairId(content_name, component, connection_id));
StatsReport* report = reports_.ReplaceOrAddNew(id);
report->set_timestamp(stats_gathering_started_);
const BoolForAdd bools[] = {
{StatsReport::kStatsValueNameActiveConnection, info.best_connection},
{StatsReport::kStatsValueNameReceiving, info.receiving},
{StatsReport::kStatsValueNameWritable, info.writable},
};
for (const auto& b : bools)
report->AddBoolean(b.name, b.value);
report->AddId(StatsReport::kStatsValueNameChannelId, channel_report_id);
cricket::CandidateStats local_candidate_stats(info.local_candidate);
cricket::CandidateStats remote_candidate_stats(info.remote_candidate);
report->AddId(StatsReport::kStatsValueNameLocalCandidateId,
AddCandidateReport(local_candidate_stats, true)->id());
report->AddId(StatsReport::kStatsValueNameRemoteCandidateId,
AddCandidateReport(remote_candidate_stats, false)->id());
const Int64ForAdd int64s[] = {
{StatsReport::kStatsValueNameBytesReceived, info.recv_total_bytes},
{StatsReport::kStatsValueNameBytesSent, info.sent_total_bytes},
{StatsReport::kStatsValueNamePacketsSent, info.sent_total_packets},
{StatsReport::kStatsValueNameRtt, info.rtt},
{StatsReport::kStatsValueNameSendPacketsDiscarded,
info.sent_discarded_packets},
{StatsReport::kStatsValueNameSentPingRequestsTotal,
info.sent_ping_requests_total},
{StatsReport::kStatsValueNameSentPingRequestsBeforeFirstResponse,
info.sent_ping_requests_before_first_response},
{StatsReport::kStatsValueNameSentPingResponses, info.sent_ping_responses},
{StatsReport::kStatsValueNameRecvPingRequests, info.recv_ping_requests},
{StatsReport::kStatsValueNameRecvPingResponses, info.recv_ping_responses},
};
for (const auto& i : int64s)
report->AddInt64(i.name, i.value);
report->AddString(StatsReport::kStatsValueNameLocalAddress,
info.local_candidate.address().ToString());
report->AddString(StatsReport::kStatsValueNameLocalCandidateType,
info.local_candidate.type());
report->AddString(StatsReport::kStatsValueNameRemoteAddress,
info.remote_candidate.address().ToString());
report->AddString(StatsReport::kStatsValueNameRemoteCandidateType,
info.remote_candidate.type());
report->AddString(StatsReport::kStatsValueNameTransportType,
info.local_candidate.protocol());
return report;
}
StatsReport* StatsCollector::AddCandidateReport(
const cricket::CandidateStats& candidate_stats,
bool local) {
const auto& candidate = candidate_stats.candidate;
StatsReport::Id id(StatsReport::NewCandidateId(local, candidate.id()));
StatsReport* report = reports_.Find(id);
if (!report) {
report = reports_.InsertNew(id);
report->set_timestamp(stats_gathering_started_);
if (local) {
report->AddString(StatsReport::kStatsValueNameCandidateNetworkType,
AdapterTypeToStatsType(candidate.network_type()));
}
report->AddString(StatsReport::kStatsValueNameCandidateIPAddress,
candidate.address().ipaddr().ToString());
report->AddString(StatsReport::kStatsValueNameCandidatePortNumber,
candidate.address().PortAsString());
report->AddInt(StatsReport::kStatsValueNameCandidatePriority,
candidate.priority());
report->AddString(StatsReport::kStatsValueNameCandidateType,
IceCandidateTypeToStatsType(candidate.type()));
report->AddString(StatsReport::kStatsValueNameCandidateTransportType,
candidate.protocol());
}
if (local && candidate_stats.stun_stats.has_value()) {
const auto& stun_stats = candidate_stats.stun_stats.value();
report->AddInt64(StatsReport::kStatsValueNameSentStunKeepaliveRequests,
stun_stats.stun_binding_requests_sent);
report->AddInt64(StatsReport::kStatsValueNameRecvStunKeepaliveResponses,
stun_stats.stun_binding_responses_received);
report->AddFloat(StatsReport::kStatsValueNameStunKeepaliveRttTotal,
stun_stats.stun_binding_rtt_ms_total);
report->AddFloat(StatsReport::kStatsValueNameStunKeepaliveRttSquaredTotal,
stun_stats.stun_binding_rtt_ms_squared_total);
}
return report;
}
void StatsCollector::ExtractSessionInfo() {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
// Extract information from the base session.
StatsReport::Id id(StatsReport::NewTypedId(
StatsReport::kStatsReportTypeSession, pc_->session_id()));
StatsReport* report = reports_.ReplaceOrAddNew(id);
report->set_timestamp(stats_gathering_started_);
report->AddBoolean(StatsReport::kStatsValueNameInitiator,
pc_->initial_offerer());
cricket::CandidateStatsList pooled_candidate_stats_list =
pc_->GetPooledCandidateStats();
for (const cricket::CandidateStats& stats : pooled_candidate_stats_list) {
AddCandidateReport(stats, true);
}
std::set<std::string> transport_names;
for (const auto& entry : pc_->GetTransportNamesByMid()) {
transport_names.insert(entry.second);
}
std::map<std::string, cricket::TransportStats> transport_stats_by_name =
pc_->GetTransportStatsByNames(transport_names);
for (const auto& entry : transport_stats_by_name) {
const std::string& transport_name = entry.first;
const cricket::TransportStats& transport_stats = entry.second;
// Attempt to get a copy of the certificates from the transport and
// expose them in stats reports. All channels in a transport share the
// same local and remote certificates.
//
StatsReport::Id local_cert_report_id, remote_cert_report_id;
rtc::scoped_refptr<rtc::RTCCertificate> certificate;
if (pc_->GetLocalCertificate(transport_name, &certificate)) {
StatsReport* r =
AddCertificateReports(certificate->ssl_cert_chain().GetStats());
if (r)
local_cert_report_id = r->id();
}
std::unique_ptr<rtc::SSLCertChain> remote_cert_chain =
pc_->GetRemoteSSLCertChain(transport_name);
if (remote_cert_chain) {
StatsReport* r = AddCertificateReports(remote_cert_chain->GetStats());
if (r)
remote_cert_report_id = r->id();
}
for (const auto& channel_iter : transport_stats.channel_stats) {
StatsReport::Id id(
StatsReport::NewComponentId(transport_name, channel_iter.component));
StatsReport* channel_report = reports_.ReplaceOrAddNew(id);
channel_report->set_timestamp(stats_gathering_started_);
channel_report->AddInt(StatsReport::kStatsValueNameComponent,
channel_iter.component);
if (local_cert_report_id.get()) {
channel_report->AddId(StatsReport::kStatsValueNameLocalCertificateId,
local_cert_report_id);
}
if (remote_cert_report_id.get()) {
channel_report->AddId(StatsReport::kStatsValueNameRemoteCertificateId,
remote_cert_report_id);
}
int srtp_crypto_suite = channel_iter.srtp_crypto_suite;
if (srtp_crypto_suite != rtc::SRTP_INVALID_CRYPTO_SUITE &&
rtc::SrtpCryptoSuiteToName(srtp_crypto_suite).length()) {
channel_report->AddString(
StatsReport::kStatsValueNameSrtpCipher,
rtc::SrtpCryptoSuiteToName(srtp_crypto_suite));
}
int ssl_cipher_suite = channel_iter.ssl_cipher_suite;
if (ssl_cipher_suite != rtc::TLS_NULL_WITH_NULL_NULL &&
rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher_suite)
.length()) {
channel_report->AddString(
StatsReport::kStatsValueNameDtlsCipher,
rtc::SSLStreamAdapter::SslCipherSuiteToName(ssl_cipher_suite));
}
// Collect stats for non-pooled candidates. Note that the reports
// generated here supersedes the candidate reports generated in
// AddConnectionInfoReport below, and they may report candidates that are
// not paired. Also, the candidate report generated in
// AddConnectionInfoReport do not report port stats like StunStats.
for (const cricket::CandidateStats& stats :
channel_iter.candidate_stats_list) {
AddCandidateReport(stats, true);
}
int connection_id = 0;
for (const cricket::ConnectionInfo& info :
channel_iter.connection_infos) {
StatsReport* connection_report = AddConnectionInfoReport(
transport_name, channel_iter.component, connection_id++,
channel_report->id(), info);
if (info.best_connection) {
channel_report->AddId(
StatsReport::kStatsValueNameSelectedCandidatePairId,
connection_report->id());
}
}
}
}
}
void StatsCollector::ExtractBweInfo() {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
if (pc_->signaling_state() == PeerConnectionInterface::kClosed)
return;
webrtc::Call::Stats call_stats = pc_->GetCallStats();
cricket::BandwidthEstimationInfo bwe_info;
bwe_info.available_send_bandwidth = call_stats.send_bandwidth_bps;
bwe_info.available_recv_bandwidth = call_stats.recv_bandwidth_bps;
bwe_info.bucket_delay = call_stats.pacer_delay_ms;
// Fill in target encoder bitrate, actual encoder bitrate, rtx bitrate, etc.
// TODO(holmer): Also fill this in for audio.
for (auto transceiver : pc_->GetTransceiversInternal()) {
if (transceiver->media_type() != cricket::MEDIA_TYPE_VIDEO) {
continue;
}
auto* video_channel =
static_cast<cricket::VideoChannel*>(transceiver->internal()->channel());
if (!video_channel) {
continue;
}
video_channel->FillBitrateInfo(&bwe_info);
}
StatsReport::Id report_id(StatsReport::NewBandwidthEstimationId());
StatsReport* report = reports_.FindOrAddNew(report_id);
ExtractStats(bwe_info, stats_gathering_started_, report);
}
namespace {
struct VoiceChannelStatsInfo {
std::string transport_name;
cricket::VoiceMediaChannel* voice_media_channel;
cricket::VoiceMediaInfo voice_media_info;
};
struct VideoChannelStatsInfo {
std::string transport_name;
cricket::VideoMediaChannel* video_media_channel;
cricket::VideoMediaInfo video_media_info;
};
} // namespace
void StatsCollector::ExtractMediaInfo() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
std::vector<VoiceChannelStatsInfo> voice_channel_infos;
std::vector<VideoChannelStatsInfo> video_channel_infos;
{
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (auto transceiver : pc_->GetTransceiversInternal()) {
if (!transceiver->internal()->channel()) {
continue;
}
cricket::MediaType media_type = transceiver->internal()->media_type();
if (media_type == cricket::MEDIA_TYPE_AUDIO) {
auto* voice_channel = static_cast<cricket::VoiceChannel*>(
transceiver->internal()->channel());
voice_channel_infos.emplace_back();
VoiceChannelStatsInfo& info = voice_channel_infos.back();
info.transport_name = voice_channel->transport_name();
info.voice_media_channel = voice_channel->media_channel();
} else {
RTC_DCHECK_EQ(media_type, cricket::MEDIA_TYPE_VIDEO);
auto* video_channel = static_cast<cricket::VideoChannel*>(
transceiver->internal()->channel());
video_channel_infos.emplace_back();
VideoChannelStatsInfo& info = video_channel_infos.back();
info.transport_name = video_channel->transport_name();
info.video_media_channel = video_channel->media_channel();
}
}
}
pc_->worker_thread()->Invoke<void>(RTC_FROM_HERE, [&] {
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (auto it = voice_channel_infos.begin(); it != voice_channel_infos.end();
/* incremented manually */) {
if (!it->voice_media_channel->GetStats(&it->voice_media_info)) {
RTC_LOG(LS_ERROR) << "Failed to get voice channel stats";
it = voice_channel_infos.erase(it);
continue;
}
++it;
}
for (auto it = video_channel_infos.begin(); it != video_channel_infos.end();
/* incremented manually */) {
if (!it->video_media_channel->GetStats(&it->video_media_info)) {
RTC_LOG(LS_ERROR) << "Failed to get video channel stats";
it = video_channel_infos.erase(it);
continue;
}
++it;
}
});
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
bool has_remote_audio = false;
for (const auto& info : voice_channel_infos) {
StatsReport::Id transport_id = StatsReport::NewComponentId(
info.transport_name, cricket::ICE_CANDIDATE_COMPONENT_RTP);
ExtractStatsFromList(info.voice_media_info.receivers, transport_id, this,
StatsReport::kReceive);
ExtractStatsFromList(info.voice_media_info.senders, transport_id, this,
StatsReport::kSend);
if (!info.voice_media_info.receivers.empty()) {
has_remote_audio = true;
}
}
for (const auto& info : video_channel_infos) {
StatsReport::Id transport_id = StatsReport::NewComponentId(
info.transport_name, cricket::ICE_CANDIDATE_COMPONENT_RTP);
ExtractStatsFromList(info.video_media_info.receivers, transport_id, this,
StatsReport::kReceive);
ExtractStatsFromList(info.video_media_info.senders, transport_id, this,
StatsReport::kSend);
}
UpdateStatsFromExistingLocalAudioTracks(has_remote_audio);
}
void StatsCollector::ExtractSenderInfo() {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
for (const auto& sender : pc_->GetSenders()) {
// TODO(nisse): SSRC == 0 currently means none. Delete check when
// that is fixed.
if (!sender->ssrc()) {
continue;
}
const rtc::scoped_refptr<MediaStreamTrackInterface> track(sender->track());
if (!track || track->kind() != MediaStreamTrackInterface::kVideoKind) {
continue;
}
// Safe, because kind() == kVideoKind implies a subclass of
// VideoTrackInterface; see mediastreaminterface.h.
VideoTrackSourceInterface* source =
static_cast<VideoTrackInterface*>(track.get())->GetSource();
VideoTrackSourceInterface::Stats stats;
if (!source->GetStats(&stats)) {
continue;
}
const StatsReport::Id stats_id = StatsReport::NewIdWithDirection(
StatsReport::kStatsReportTypeSsrc, rtc::ToString(sender->ssrc()),
StatsReport::kSend);
StatsReport* report = reports_.FindOrAddNew(stats_id);
report->AddInt(StatsReport::kStatsValueNameFrameWidthInput,
stats.input_width);
report->AddInt(StatsReport::kStatsValueNameFrameHeightInput,
stats.input_height);
}
}
void StatsCollector::ExtractDataInfo() {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (const auto& dc : pc_->sctp_data_channels()) {
StatsReport::Id id(StatsReport::NewTypedIntId(
StatsReport::kStatsReportTypeDataChannel, dc->id()));
StatsReport* report = reports_.ReplaceOrAddNew(id);
report->set_timestamp(stats_gathering_started_);
report->AddString(StatsReport::kStatsValueNameLabel, dc->label());
// Filter out the initial id (-1).
if (dc->id() >= 0) {
report->AddInt(StatsReport::kStatsValueNameDataChannelId, dc->id());
}
report->AddString(StatsReport::kStatsValueNameProtocol, dc->protocol());
report->AddString(StatsReport::kStatsValueNameState,
DataChannelInterface::DataStateString(dc->state()));
}
}
StatsReport* StatsCollector::GetReport(const StatsReport::StatsType& type,
const std::string& id,
StatsReport::Direction direction) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
RTC_DCHECK(type == StatsReport::kStatsReportTypeSsrc ||
type == StatsReport::kStatsReportTypeRemoteSsrc);
return reports_.Find(StatsReport::NewIdWithDirection(type, id, direction));
}
void StatsCollector::UpdateStatsFromExistingLocalAudioTracks(
bool has_remote_tracks) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
// Loop through the existing local audio tracks.
for (const auto& it : local_audio_tracks_) {
AudioTrackInterface* track = it.first;
uint32_t ssrc = it.second;
StatsReport* report = GetReport(StatsReport::kStatsReportTypeSsrc,
rtc::ToString(ssrc), StatsReport::kSend);
if (report == NULL) {
// This can happen if a local audio track is added to a stream on the
// fly and the report has not been set up yet. Do nothing in this case.
RTC_LOG(LS_ERROR) << "Stats report does not exist for ssrc " << ssrc;
continue;
}
// The same ssrc can be used by both local and remote audio tracks.
const StatsReport::Value* v =
report->FindValue(StatsReport::kStatsValueNameTrackId);
if (!v || v->string_val() != track->id())
continue;
report->set_timestamp(stats_gathering_started_);
UpdateReportFromAudioTrack(track, report, has_remote_tracks);
}
}
void StatsCollector::UpdateReportFromAudioTrack(AudioTrackInterface* track,
StatsReport* report,
bool has_remote_tracks) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
RTC_DCHECK(track != NULL);
// Don't overwrite report values if they're not available.
int signal_level;
if (track->GetSignalLevel(&signal_level)) {
RTC_DCHECK_GE(signal_level, 0);
report->AddInt(StatsReport::kStatsValueNameAudioInputLevel, signal_level);
}
auto audio_processor(track->GetAudioProcessor());
if (audio_processor.get()) {
AudioProcessorInterface::AudioProcessorStatistics stats =
audio_processor->GetStats(has_remote_tracks);
SetAudioProcessingStats(report, stats.typing_noise_detected,
stats.apm_statistics);
}
}
bool StatsCollector::GetTrackIdBySsrc(uint32_t ssrc,
std::string* track_id,
StatsReport::Direction direction) {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
if (direction == StatsReport::kSend) {
if (!pc_->GetLocalTrackIdBySsrc(ssrc, track_id)) {
RTC_LOG(LS_WARNING) << "The SSRC " << ssrc
<< " is not associated with a sending track";
return false;
}
} else {
RTC_DCHECK(direction == StatsReport::kReceive);
if (!pc_->GetRemoteTrackIdBySsrc(ssrc, track_id)) {
RTC_LOG(LS_WARNING) << "The SSRC " << ssrc
<< " is not associated with a receiving track";
return false;
}
}
return true;
}
void StatsCollector::UpdateTrackReports() {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (const auto& entry : track_ids_) {
StatsReport* report = entry.second;
report->set_timestamp(stats_gathering_started_);
}
}
void StatsCollector::ClearUpdateStatsCacheForTest() {
stats_gathering_started_ = 0;
}
} // namespace webrtc
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