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webrtc/pc/stats_collector.cc
Taylor Brandstetter 3a034e15b4 Split DataChannel into two separate classes for RTP and SCTP. 
Done in preparation for some threading changes that would be quite
messy if implemented with the class as-is.

This results in some code duplication, but is preferable to
one class having two completely different modes of operation.

RTP data channels are in the process of being removed anyway,
so the duplicated code won't last forever.

Bug: webrtc:9883
Change-Id: Idfd41a669b56a4bb4819572e4a264a4ffaaba9c0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/178940
Commit-Queue: Taylor <deadbeef@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#31691}
2020-07-10 00:03:21 +00:00

1241 lines
48 KiB
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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/stats_collector.h"
#include <memory>
#include <set>
#include <utility>
#include <vector>
#include "pc/channel.h"
#include "pc/peer_connection.h"
#include "rtc_base/checks.h"
#include "rtc_base/third_party/base64/base64.h"
#include "system_wrappers/include/field_trial.h"
namespace webrtc {
namespace {
// Field trial which controls whether to report standard-compliant bytes
// sent/received per stream. If enabled, padding and headers are not included
// in bytes sent or received.
constexpr char kUseStandardBytesStats[] = "WebRTC-UseStandardBytesStats";
// 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,
bool use_standard_bytes_stats) {
report->AddString(StatsReport::kStatsValueNameCodecName, info.codec_name);
int64_t bytes_sent = info.payload_bytes_sent;
if (!use_standard_bytes_stats) {
bytes_sent += info.header_and_padding_bytes_sent;
}
report->AddInt64(StatsReport::kStatsValueNameBytesSent, 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,
bool use_standard_bytes_stats) {
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);
}
if (info.decoding_codec_plc)
report->AddInt(StatsReport::kStatsValueNameDecodingCodecPLC,
info.decoding_codec_plc);
int64_t bytes_rcvd = info.payload_bytes_rcvd;
if (!use_standard_bytes_stats) {
bytes_rcvd += info.header_and_padding_bytes_rcvd;
}
report->AddInt64(StatsReport::kStatsValueNameBytesReceived, 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,
bool use_standard_bytes_stats) {
ExtractCommonSendProperties(info, report, use_standard_bytes_stats);
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,
bool use_standard_bytes_stats) {
ExtractCommonReceiveProperties(info, report);
report->AddString(StatsReport::kStatsValueNameCodecImplementationName,
info.decoder_implementation_name);
int64_t bytes_rcvd = info.payload_bytes_rcvd;
if (!use_standard_bytes_stats) {
bytes_rcvd += info.header_and_padding_bytes_rcvd;
}
report->AddInt64(StatsReport::kStatsValueNameBytesReceived, bytes_rcvd);
if (info.capture_start_ntp_time_ms >= 0) {
report->AddInt64(StatsReport::kStatsValueNameCaptureStartNtpTimeMs,
info.capture_start_ntp_time_ms);
}
if (info.first_frame_received_to_decoded_ms >= 0) {
report->AddInt64(StatsReport::kStatsValueNameFirstFrameReceivedToDecodedMs,
info.first_frame_received_to_decoded_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,
bool use_standard_bytes_stats) {
ExtractCommonSendProperties(info, report, use_standard_bytes_stats);
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.
}
std::string GetTrackIdBySsrc(
uint32_t ssrc,
StatsReport::Direction direction,
const std::map<uint32_t, std::string>& track_id_by_ssrc) {
auto it = track_id_by_ssrc.find(ssrc);
if (it != track_id_by_ssrc.end()) {
return it->second;
}
if (direction == StatsReport::kReceive) {
// If the track ID was not found, this might be an unsignaled receive
// SSRC, so try looking up by the special SSRC 0.
it = track_id_by_ssrc.find(0);
if (it != track_id_by_ssrc.end()) {
RTC_LOG(LS_INFO) << "Assuming SSRC=" << ssrc
<< " is an unsignalled receive stream corresponding "
"to the RtpReceiver with track ID \""
<< it->second << "\".";
return it->second;
}
}
return "";
}
// 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,
const std::map<uint32_t, std::string>& track_id_by_ssrc) {
for (const auto& d : data) {
uint32_t ssrc = d.ssrc();
std::string track_id = GetTrackIdBySsrc(ssrc, direction, track_id_by_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, track_id, transport_id, direction);
if (report)
ExtractStats(d, report, collector->UseStandardBytesStats());
if (!d.remote_stats.empty()) {
report = collector->PrepareReport(false, ssrc, track_id, 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:
case rtc::ADAPTER_TYPE_CELLULAR_2G:
case rtc::ADAPTER_TYPE_CELLULAR_3G:
case rtc::ADAPTER_TYPE_CELLULAR_4G:
case rtc::ADAPTER_TYPE_CELLULAR_5G:
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),
use_standard_bytes_stats_(
webrtc::field_trial::IsEnabled(kUseStandardBytesStats)) {
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 std::string& track_id,
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);
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;
}
StatsReport* StatsCollector::PrepareADMReport() {
RTC_DCHECK(pc_->signaling_thread()->IsCurrent());
StatsReport::Id id(StatsReport::NewTypedId(
StatsReport::kStatsReportTypeSession, pc_->session_id()));
StatsReport* report = reports_.FindOrAddNew(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());
}
report->set_timestamp(stats_gathering_started_);
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->GetSSLCertificateChain().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.ice_transport_stats.candidate_stats_list) {
AddCandidateReport(stats, true);
}
int connection_id = 0;
for (const cricket::ConnectionInfo& info :
channel_iter.ice_transport_stats.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 (const 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 {
class MediaChannelStatsGatherer {
public:
virtual ~MediaChannelStatsGatherer() = default;
virtual bool GetStatsOnWorkerThread() = 0;
virtual void ExtractStats(StatsCollector* collector) const = 0;
virtual bool HasRemoteAudio() const = 0;
std::string mid;
std::string transport_name;
std::map<uint32_t, std::string> sender_track_id_by_ssrc;
std::map<uint32_t, std::string> receiver_track_id_by_ssrc;
protected:
template <typename ReceiverT, typename SenderT>
void ExtractSenderReceiverStats(
StatsCollector* collector,
const std::vector<ReceiverT>& receiver_data,
const std::vector<SenderT>& sender_data) const {
RTC_DCHECK(collector);
StatsReport::Id transport_id = StatsReport::NewComponentId(
transport_name, cricket::ICE_CANDIDATE_COMPONENT_RTP);
ExtractStatsFromList(receiver_data, transport_id, collector,
StatsReport::kReceive, receiver_track_id_by_ssrc);
ExtractStatsFromList(sender_data, transport_id, collector,
StatsReport::kSend, sender_track_id_by_ssrc);
}
};
class VoiceMediaChannelStatsGatherer final : public MediaChannelStatsGatherer {
public:
VoiceMediaChannelStatsGatherer(
cricket::VoiceMediaChannel* voice_media_channel)
: voice_media_channel_(voice_media_channel) {
RTC_DCHECK(voice_media_channel_);
}
bool GetStatsOnWorkerThread() override {
return voice_media_channel_->GetStats(&voice_media_info);
}
void ExtractStats(StatsCollector* collector) const override {
ExtractSenderReceiverStats(collector, voice_media_info.receivers,
voice_media_info.senders);
if (voice_media_info.device_underrun_count == -2 ||
voice_media_info.device_underrun_count > 0) {
StatsReport* report = collector->PrepareADMReport();
report->AddInt(StatsReport::kStatsValueNameAudioDeviceUnderrunCounter,
voice_media_info.device_underrun_count);
}
}
bool HasRemoteAudio() const override {
return !voice_media_info.receivers.empty();
}
private:
cricket::VoiceMediaChannel* voice_media_channel_;
cricket::VoiceMediaInfo voice_media_info;
};
class VideoMediaChannelStatsGatherer final : public MediaChannelStatsGatherer {
public:
VideoMediaChannelStatsGatherer(
cricket::VideoMediaChannel* video_media_channel)
: video_media_channel_(video_media_channel) {
RTC_DCHECK(video_media_channel_);
}
bool GetStatsOnWorkerThread() override {
return video_media_channel_->GetStats(&video_media_info);
}
void ExtractStats(StatsCollector* collector) const override {
ExtractSenderReceiverStats(collector, video_media_info.receivers,
video_media_info.aggregated_senders);
}
bool HasRemoteAudio() const override { return false; }
private:
cricket::VideoMediaChannel* video_media_channel_;
cricket::VideoMediaInfo video_media_info;
};
std::unique_ptr<MediaChannelStatsGatherer> CreateMediaChannelStatsGatherer(
cricket::MediaChannel* channel) {
RTC_DCHECK(channel);
if (channel->media_type() == cricket::MEDIA_TYPE_AUDIO) {
return std::make_unique<VoiceMediaChannelStatsGatherer>(
static_cast<cricket::VoiceMediaChannel*>(channel));
} else {
RTC_DCHECK_EQ(channel->media_type(), cricket::MEDIA_TYPE_VIDEO);
return std::make_unique<VideoMediaChannelStatsGatherer>(
static_cast<cricket::VideoMediaChannel*>(channel));
}
}
} // namespace
void StatsCollector::ExtractMediaInfo() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
std::vector<std::unique_ptr<MediaChannelStatsGatherer>> gatherers;
{
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (const auto& transceiver : pc_->GetTransceiversInternal()) {
cricket::ChannelInterface* channel = transceiver->internal()->channel();
if (!channel) {
continue;
}
std::unique_ptr<MediaChannelStatsGatherer> gatherer =
CreateMediaChannelStatsGatherer(channel->media_channel());
gatherer->mid = channel->content_name();
gatherer->transport_name = channel->transport_name();
for (const auto& sender : transceiver->internal()->senders()) {
std::string track_id = (sender->track() ? sender->track()->id() : "");
gatherer->sender_track_id_by_ssrc.insert(
std::make_pair(sender->ssrc(), track_id));
}
for (const auto& receiver : transceiver->internal()->receivers()) {
gatherer->receiver_track_id_by_ssrc.insert(std::make_pair(
receiver->internal()->ssrc(), receiver->track()->id()));
}
gatherers.push_back(std::move(gatherer));
}
}
pc_->worker_thread()->Invoke<void>(RTC_FROM_HERE, [&] {
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (auto it = gatherers.begin(); it != gatherers.end();
/* incremented manually */) {
MediaChannelStatsGatherer* gatherer = it->get();
if (!gatherer->GetStatsOnWorkerThread()) {
RTC_LOG(LS_ERROR) << "Failed to get media channel stats for mid="
<< gatherer->mid;
it = gatherers.erase(it);
continue;
}
++it;
}
});
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
bool has_remote_audio = false;
for (const auto& gatherer : gatherers) {
gatherer->ExtractStats(this);
has_remote_audio |= gatherer->HasRemoteAudio();
}
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;
std::vector<DataChannelStats> data_stats = pc_->GetDataChannelStats();
for (const auto& stats : data_stats) {
StatsReport::Id id(StatsReport::NewTypedIntId(
StatsReport::kStatsReportTypeDataChannel, stats.id));
StatsReport* report = reports_.ReplaceOrAddNew(id);
report->set_timestamp(stats_gathering_started_);
report->AddString(StatsReport::kStatsValueNameLabel, stats.label);
// Filter out the initial id (-1).
if (stats.id >= 0) {
report->AddInt(StatsReport::kStatsValueNameDataChannelId, stats.id);
}
report->AddString(StatsReport::kStatsValueNameProtocol, stats.protocol);
report->AddString(StatsReport::kStatsValueNameState,
DataChannelInterface::DataStateString(stats.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);
}
}
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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