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webrtc / src / 4c5e72e3e0c8a80c2c0704bb1ab32718d63c7a04 / . / pc / legacy_stats_collector.cc
blob: 6c5e52f527d3fee9164fe58221f6476c730aafd3 [file] [log] [blame]
/*
* 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/legacy_stats_collector.h"
#include <stddef.h>
#include <stdint.h>
#include <algorithm>
#include <cmath>
#include <list>
#include <optional>
#include <set>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "api/audio/audio_processing_statistics.h"
#include "api/audio_codecs/audio_encoder.h"
#include "api/candidate.h"
#include "api/data_channel_interface.h"
#include "api/field_trials_view.h"
#include "api/media_types.h"
#include "api/rtp_sender_interface.h"
#include "api/scoped_refptr.h"
#include "api/sequence_checker.h"
#include "api/video/video_content_type.h"
#include "api/video/video_timing.h"
#include "call/call.h"
#include "media/base/media_channel.h"
#include "p2p/base/ice_transport_internal.h"
#include "p2p/base/p2p_constants.h"
#include "pc/channel.h"
#include "pc/channel_interface.h"
#include "pc/data_channel_utils.h"
#include "pc/rtp_receiver.h"
#include "pc/rtp_receiver_proxy.h"
#include "pc/rtp_sender_proxy.h"
#include "pc/rtp_transceiver.h"
#include "pc/transport_stats.h"
#include "rtc_base/checks.h"
#include "rtc_base/ip_address.h"
#include "rtc_base/logging.h"
#include "rtc_base/rtc_certificate.h"
#include "rtc_base/socket_address.h"
#include "rtc_base/ssl_stream_adapter.h"
#include "rtc_base/string_encode.h"
#include "rtc_base/thread.h"
#include "rtc_base/time_utils.h"
#include "rtc_base/trace_event.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,
const AudioProcessingStats& apm_stats) {
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,
static_cast<float>(info.total_output_energy)},
{StatsReport::kStatsValueNameTotalSamplesDuration,
static_cast<float>(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_received},
{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_received = info.payload_bytes_received;
if (!use_standard_bytes_stats) {
bytes_received += info.header_and_padding_bytes_received;
}
report->AddInt64(StatsReport::kStatsValueNameBytesReceived, bytes_received);
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.apm_statistics);
const FloatForAdd floats[] = {
{StatsReport::kStatsValueNameTotalAudioEnergy,
static_cast<float>(info.total_input_energy)},
{StatsReport::kStatsValueNameTotalSamplesDuration,
static_cast<float>(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.value_or("unknown"));
int64_t bytes_received = info.payload_bytes_received;
if (!use_standard_bytes_stats) {
bytes_received += info.header_and_padding_bytes_received;
}
report->AddInt64(StatsReport::kStatsValueNameBytesReceived, bytes_received);
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);
if (info.nacks_sent) {
report->AddInt(StatsReport::kStatsValueNameNacksSent, *info.nacks_sent);
}
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_received},
{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::kStatsValueNamePacketsLost, info.packets_lost},
{StatsReport::kStatsValueNamePacketsReceived, info.packets_received},
{StatsReport::kStatsValueNamePlisSent, info.plis_sent},
{StatsReport::kStatsValueNameRenderDelayMs, info.render_delay_ms},
{StatsReport::kStatsValueNameTargetDelayMs, info.target_delay_ms},
{StatsReport::kStatsValueNameFramesDecoded,
static_cast<int>(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,
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.value_or("unknown"));
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_received},
{StatsReport::kStatsValueNameFrameHeightSent, info.send_frame_height},
{StatsReport::kStatsValueNameFrameRateInput,
static_cast<int>(round(info.framerate_input))},
{StatsReport::kStatsValueNameFrameRateSent, info.framerate_sent},
{StatsReport::kStatsValueNameFrameWidthSent, info.send_frame_width},
{StatsReport::kStatsValueNameNacksReceived,
static_cast<int>(info.nacks_received)},
{StatsReport::kStatsValueNamePacketsLost, info.packets_lost},
{StatsReport::kStatsValueNamePacketsSent, info.packets_sent},
{StatsReport::kStatsValueNamePlisReceived, info.plis_received},
{StatsReport::kStatsValueNameFramesEncoded,
static_cast<int>(info.frames_encoded)},
{StatsReport::kStatsValueNameHugeFramesSent,
static_cast<int>(info.huge_frames_sent)},
};
for (const auto& i : ints)
report->AddInt(i.name, i.value);
report->AddString(StatsReport::kStatsValueNameMediaType, "video");
report->AddString(StatsReport::kStatsValueNameContentType,
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,
LegacyStatsCollector* 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 cricket::Candidate& candidate) {
if (candidate.is_local()) {
return STATSREPORT_LOCAL_PORT_TYPE;
}
if (candidate.is_stun()) {
return STATSREPORT_STUN_PORT_TYPE;
}
if (candidate.is_prflx()) {
return STATSREPORT_PRFLX_PORT_TYPE;
}
if (candidate.is_relay()) {
return STATSREPORT_RELAY_PORT_TYPE;
}
RTC_DCHECK_NOTREACHED();
return "unknown";
}
// Return std::string to make sure that the type remains kString compatible.
std::string GetLegacyCandidateTypeName(const cricket::Candidate& c) {
if (c.is_local())
return "local";
if (c.is_stun())
return "stun";
return std::string(c.type_name());
}
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_DCHECK_NOTREACHED();
return "";
}
}
LegacyStatsCollector::LegacyStatsCollector(PeerConnectionInternal* pc)
: pc_(pc),
stats_gathering_started_(0),
use_standard_bytes_stats_(
pc->trials().IsEnabled(kUseStandardBytesStats)) {
RTC_DCHECK(pc_);
}
LegacyStatsCollector::~LegacyStatsCollector() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
}
// Wallclock time in ms.
double LegacyStatsCollector::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 LegacyStatsCollector::AddStream(MediaStreamInterface* stream) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
RTC_DCHECK(stream != NULL);
CreateTrackReports<AudioTrackVector>(stream->GetAudioTracks(), &reports_,
&track_ids_);
CreateTrackReports<VideoTrackVector>(stream->GetVideoTracks(), &reports_,
&track_ids_);
}
void LegacyStatsCollector::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_DCHECK_NOTREACHED() << "Illegal track kind";
}
}
void LegacyStatsCollector::AddLocalAudioTrack(AudioTrackInterface* audio_track,
uint32_t ssrc) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
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 LegacyStatsCollector::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 LegacyStatsCollector::GetStats(MediaStreamTrackInterface* track,
StatsReports* reports) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
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 LegacyStatsCollector::UpdateStats(
PeerConnectionInterface::StatsOutputLevel level) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
// Calls to UpdateStats() that occur less than kMinGatherStatsPeriodMs apart
// will be ignored. Using a monotonic clock specifically for this, while using
// a UTC clock for the reports themselves.
const int64_t kMinGatherStatsPeriodMs = 50;
int64_t cache_now_ms = rtc::TimeMillis();
if (cache_timestamp_ms_ != 0 &&
cache_timestamp_ms_ + kMinGatherStatsPeriodMs > cache_now_ms) {
return;
}
cache_timestamp_ms_ = cache_now_ms;
stats_gathering_started_ = GetTimeNow();
// TODO(tommi): ExtractSessionInfo now has a single hop to the network thread
// to fetch stats, then applies them on the signaling thread. See if we need
// to do this synchronously or if updating the stats without blocking is safe.
std::map<std::string, std::string> transport_names_by_mid =
ExtractSessionAndDataInfo();
// TODO(tommi): All of these hop over to the worker thread to fetch
// information. We could post a task 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).
ExtractBweInfo();
ExtractMediaInfo(transport_names_by_mid);
ExtractSenderInfo();
UpdateTrackReports();
}
StatsReport* LegacyStatsCollector::PrepareReport(
bool local,
uint32_t ssrc,
const std::string& track_id,
const StatsReport::Id& transport_id,
StatsReport::Direction direction) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
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* LegacyStatsCollector::PrepareADMReport() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
StatsReport::Id id(StatsReport::NewTypedId(
StatsReport::kStatsReportTypeSession, pc_->session_id()));
StatsReport* report = reports_.FindOrAddNew(id);
return report;
}
bool LegacyStatsCollector::IsValidTrack(const std::string& track_id) {
return reports_.Find(StatsReport::NewTypedId(
StatsReport::kStatsReportTypeTrack, track_id)) != nullptr;
}
StatsReport* LegacyStatsCollector::AddCertificateReports(
std::unique_ptr<rtc::SSLCertificateStats> cert_stats) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
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* LegacyStatsCollector::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,
static_cast<int64_t>(info.recv_total_bytes)},
{StatsReport::kStatsValueNameBytesSent,
static_cast<int64_t>(info.sent_total_bytes)},
{StatsReport::kStatsValueNamePacketsSent,
static_cast<int64_t>(info.sent_total_packets)},
{StatsReport::kStatsValueNameRtt, static_cast<int64_t>(info.rtt)},
{StatsReport::kStatsValueNameSendPacketsDiscarded,
static_cast<int64_t>(info.sent_discarded_packets)},
{StatsReport::kStatsValueNameSentPingRequestsTotal,
static_cast<int64_t>(info.sent_ping_requests_total)},
{StatsReport::kStatsValueNameSentPingRequestsBeforeFirstResponse,
static_cast<int64_t>(info.sent_ping_requests_before_first_response)},
{StatsReport::kStatsValueNameSentPingResponses,
static_cast<int64_t>(info.sent_ping_responses)},
{StatsReport::kStatsValueNameRecvPingRequests,
static_cast<int64_t>(info.recv_ping_requests)},
{StatsReport::kStatsValueNameRecvPingResponses,
static_cast<int64_t>(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,
GetLegacyCandidateTypeName(info.local_candidate));
report->AddString(StatsReport::kStatsValueNameRemoteAddress,
info.remote_candidate.address().ToString());
report->AddString(StatsReport::kStatsValueNameRemoteCandidateType,
GetLegacyCandidateTypeName(info.remote_candidate));
report->AddString(StatsReport::kStatsValueNameTransportType,
info.local_candidate.protocol());
report->AddString(StatsReport::kStatsValueNameLocalCandidateRelayProtocol,
info.local_candidate.relay_protocol());
return report;
}
StatsReport* LegacyStatsCollector::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));
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;
}
std::map<std::string, std::string>
LegacyStatsCollector::ExtractSessionAndDataInfo() {
TRACE_EVENT0("webrtc", "LegacyStatsCollector::ExtractSessionAndDataInfo");
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
SessionStats stats;
StatsCollection::Container data_report_collection;
auto transceivers = pc_->GetTransceiversInternal();
pc_->network_thread()->BlockingCall(
[&, sctp_transport_name = pc_->sctp_transport_name(),
sctp_mid = pc_->sctp_mid()]() mutable {
stats = ExtractSessionInfo_n(
transceivers, std::move(sctp_transport_name), std::move(sctp_mid));
StatsCollection data_reports;
ExtractDataInfo_n(&data_reports);
data_report_collection = data_reports.DetachCollection();
});
reports_.MergeCollection(std::move(data_report_collection));
ExtractSessionInfo_s(stats);
return std::move(stats.transport_names_by_mid);
}
LegacyStatsCollector::SessionStats LegacyStatsCollector::ExtractSessionInfo_n(
const std::vector<rtc::scoped_refptr<
RtpTransceiverProxyWithInternal<RtpTransceiver>>>& transceivers,
std::optional<std::string> sctp_transport_name,
std::optional<std::string> sctp_mid) {
TRACE_EVENT0("webrtc", "LegacyStatsCollector::ExtractSessionInfo_n");
RTC_DCHECK_RUN_ON(pc_->network_thread());
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
SessionStats stats;
stats.candidate_stats = pc_->GetPooledCandidateStats();
for (auto& transceiver : transceivers) {
cricket::ChannelInterface* channel = transceiver->internal()->channel();
if (channel) {
stats.transport_names_by_mid[channel->mid()] =
std::string(channel->transport_name());
}
}
if (sctp_transport_name) {
RTC_DCHECK(sctp_mid);
stats.transport_names_by_mid[*sctp_mid] = *sctp_transport_name;
}
std::set<std::string> transport_names;
for (const auto& entry : stats.transport_names_by_mid) {
transport_names.insert(entry.second);
}
std::map<std::string, cricket::TransportStats> transport_stats_by_name =
pc_->GetTransportStatsByNames(transport_names);
for (auto& entry : transport_stats_by_name) {
stats.transport_stats.emplace_back(entry.first, std::move(entry.second));
TransportStats& transport = stats.transport_stats.back();
// 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)) {
transport.local_cert_stats =
certificate->GetSSLCertificateChain().GetStats();
}
std::unique_ptr<rtc::SSLCertChain> remote_cert_chain =
pc_->GetRemoteSSLCertChain(transport.name);
if (remote_cert_chain) {
transport.remote_cert_stats = remote_cert_chain->GetStats();
}
}
return stats;
}
void LegacyStatsCollector::ExtractSessionInfo_s(SessionStats& session_stats) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
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());
for (const cricket::CandidateStats& stats : session_stats.candidate_stats) {
AddCandidateReport(stats, true);
}
for (auto& transport : session_stats.transport_stats) {
// 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;
if (transport.local_cert_stats) {
StatsReport* r =
AddCertificateReports(std::move(transport.local_cert_stats));
if (r)
local_cert_report_id = r->id();
}
if (transport.remote_cert_stats) {
StatsReport* r =
AddCertificateReports(std::move(transport.remote_cert_stats));
if (r)
remote_cert_report_id = r->id();
}
for (const auto& channel_iter : transport.stats.channel_stats) {
StatsReport::Id channel_stats_id(
StatsReport::NewComponentId(transport.name, channel_iter.component));
StatsReport* channel_report = reports_.ReplaceOrAddNew(channel_stats_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::kSrtpInvalidCryptoSuite &&
rtc::SrtpCryptoSuiteToName(srtp_crypto_suite).length()) {
channel_report->AddString(
StatsReport::kStatsValueNameSrtpCipher,
rtc::SrtpCryptoSuiteToName(srtp_crypto_suite));
}
if (channel_iter.tls_cipher_suite_name) {
channel_report->AddString(
StatsReport::kStatsValueNameDtlsCipher,
std::string(*channel_iter.tls_cipher_suite_name));
}
// 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 LegacyStatsCollector::ExtractBweInfo() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
if (pc_->signaling_state() == PeerConnectionInterface::kClosed)
return;
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.
auto transceivers = pc_->GetTransceiversInternal();
std::vector<cricket::VideoMediaSendChannelInterface*> video_media_channels;
for (const auto& transceiver : transceivers) {
if (transceiver->media_type() != cricket::MEDIA_TYPE_VIDEO) {
continue;
}
auto* video_channel = transceiver->internal()->channel();
if (video_channel) {
video_media_channels.push_back(video_channel->video_media_send_channel());
}
}
if (!video_media_channels.empty()) {
pc_->worker_thread()->BlockingCall([&] {
for (const auto& channel : video_media_channels) {
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 ChannelStatsGatherer {
public:
virtual ~ChannelStatsGatherer() = default;
virtual bool GetStatsOnWorkerThread() = 0;
virtual void ExtractStats(LegacyStatsCollector* 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(
LegacyStatsCollector* 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 VoiceChannelStatsGatherer final : public ChannelStatsGatherer {
public:
explicit VoiceChannelStatsGatherer(cricket::VoiceChannel* voice_channel)
: voice_channel_(voice_channel) {
RTC_DCHECK(voice_channel_);
}
bool GetStatsOnWorkerThread() override {
cricket::VoiceMediaSendInfo send_info;
cricket::VoiceMediaReceiveInfo receive_info;
bool success =
voice_channel_->voice_media_send_channel()->GetStats(&send_info);
success &= voice_channel_->voice_media_receive_channel()->GetStats(
&receive_info,
/*get_and_clear_legacy_stats=*/true);
if (success) {
voice_media_info = cricket::VoiceMediaInfo(std::move(send_info),
std::move(receive_info));
}
return success;
}
void ExtractStats(LegacyStatsCollector* 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::VoiceChannel* voice_channel_;
cricket::VoiceMediaInfo voice_media_info;
};
class VideoChannelStatsGatherer final : public ChannelStatsGatherer {
public:
explicit VideoChannelStatsGatherer(cricket::VideoChannel* video_channel)
: video_channel_(video_channel) {
RTC_DCHECK(video_channel_);
}
bool GetStatsOnWorkerThread() override {
cricket::VideoMediaSendInfo send_info;
cricket::VideoMediaReceiveInfo receive_info;
bool success =
video_channel_->video_media_send_channel()->GetStats(&send_info);
success &=
video_channel_->video_media_receive_channel()->GetStats(&receive_info);
if (success) {
video_media_info = cricket::VideoMediaInfo(std::move(send_info),
std::move(receive_info));
}
return success;
}
void ExtractStats(LegacyStatsCollector* collector) const override {
ExtractSenderReceiverStats(collector, video_media_info.receivers,
video_media_info.aggregated_senders);
}
bool HasRemoteAudio() const override { return false; }
private:
cricket::VideoChannel* video_channel_;
cricket::VideoMediaInfo video_media_info;
};
std::unique_ptr<ChannelStatsGatherer> CreateChannelStatsGatherer(
cricket::ChannelInterface* channel) {
RTC_DCHECK(channel);
if (channel->media_type() == cricket::MEDIA_TYPE_AUDIO) {
return std::make_unique<VoiceChannelStatsGatherer>(
channel->AsVoiceChannel());
} else {
RTC_DCHECK_EQ(channel->media_type(), cricket::MEDIA_TYPE_VIDEO);
return std::make_unique<VideoChannelStatsGatherer>(
channel->AsVideoChannel());
}
}
} // namespace
void LegacyStatsCollector::ExtractMediaInfo(
const std::map<std::string, std::string>& transport_names_by_mid) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
std::vector<std::unique_ptr<ChannelStatsGatherer>> gatherers;
auto transceivers = pc_->GetTransceiversInternal();
{
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (const auto& transceiver : transceivers) {
cricket::ChannelInterface* channel = transceiver->internal()->channel();
if (!channel) {
continue;
}
std::unique_ptr<ChannelStatsGatherer> gatherer =
CreateChannelStatsGatherer(channel);
gatherer->mid = channel->mid();
gatherer->transport_name = transport_names_by_mid.at(gatherer->mid);
for (const auto& sender : transceiver->internal()->senders()) {
auto track = sender->track();
std::string track_id = (track ? track->id() : "");
gatherer->sender_track_id_by_ssrc.insert(
std::make_pair(sender->ssrc(), track_id));
}
// Populating `receiver_track_id_by_ssrc` will be done on the worker
// thread as the `ssrc` property of the receiver needs to be accessed
// there.
gatherers.push_back(std::move(gatherer));
}
}
pc_->worker_thread()->BlockingCall([&] {
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
// Populate `receiver_track_id_by_ssrc` for the gatherers.
int i = 0;
for (const auto& transceiver : transceivers) {
cricket::ChannelInterface* channel = transceiver->internal()->channel();
if (!channel)
continue;
ChannelStatsGatherer* gatherer = gatherers[i++].get();
RTC_DCHECK_EQ(gatherer->mid, channel->mid());
for (const auto& receiver : transceiver->internal()->receivers()) {
gatherer->receiver_track_id_by_ssrc.insert(std::make_pair(
receiver->internal()->ssrc().value_or(0), receiver->track()->id()));
}
}
for (auto it = gatherers.begin(); it != gatherers.end();
/* incremented manually */) {
ChannelStatsGatherer* 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 LegacyStatsCollector::ExtractSenderInfo() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
for (const auto& sender : pc_->GetSenders()) {
// TODO(bugs.webrtc.org/8694): 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 LegacyStatsCollector::ExtractDataInfo_n(StatsCollection* reports) {
RTC_DCHECK_RUN_ON(pc_->network_thread());
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* LegacyStatsCollector::GetReport(const StatsReport::StatsType& type,
const std::string& id,
StatsReport::Direction direction) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
RTC_DCHECK(type == StatsReport::kStatsReportTypeSsrc ||
type == StatsReport::kStatsReportTypeRemoteSsrc);
return reports_.Find(StatsReport::NewIdWithDirection(type, id, direction));
}
void LegacyStatsCollector::UpdateStatsFromExistingLocalAudioTracks(
bool has_remote_tracks) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
// 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 LegacyStatsCollector::UpdateReportFromAudioTrack(
AudioTrackInterface* track,
StatsReport* report,
bool has_remote_tracks) {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
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.apm_statistics);
}
}
void LegacyStatsCollector::UpdateTrackReports() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
rtc::Thread::ScopedDisallowBlockingCalls no_blocking_calls;
for (const auto& entry : track_ids_) {
StatsReport* report = entry.second;
report->set_timestamp(stats_gathering_started_);
}
}
void LegacyStatsCollector::InvalidateCache() {
RTC_DCHECK_RUN_ON(pc_->signaling_thread());
cache_timestamp_ms_ = 0;
}
} // namespace webrtc