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webrtc_m130/webrtc/api/rtcstatscollector.cc
hbos 82ebe02491 Correct stats for RTCPeerConnectionStats.dataChannels[Opened/Closed]. 
DataChannel.SignalOpened and unittests added.
PeerConnection.SignalDataChannelCreated added and wired up to
RTCStatsCollector.OnDataChannelCreated on RTCStatsCollector
construction.
RTCStatsCollector.OnSignalOpened/Closed added and wired up on
OnDataChannelCreated.
rtcstatscollector_unittest.cc updated, faking that channels are opened
and closed.

I did not want to use DataChannelObserver because it is used for more
than state changes and there can only be one observer (unless code is
updated). Since DataChannel already had a SignalClosed it made sense to
add a SignalOpened.

Having OnSignalBlah in RTCStatsCollector is new in this CL but will
likely be needed to correctly handle RTPMediaStreamTracks being added
and detached independently of getStats. This CL establishes this
pattern.

(An integration test will be needed for this and all the other stats to
make sure everything is wired up correctly and test outside of a
mock/fake environment, but this is not news.)

BUG=chromium:636818, chromium:627816

Review-Url: https://codereview.webrtc.org/2472113002
Cr-Commit-Position: refs/heads/master@{#15059}
2016-11-14 09:41:56 +00:00

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/*
* Copyright 2016 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 "webrtc/api/rtcstatscollector.h"
#include <memory>
#include <utility>
#include <vector>
#include "webrtc/api/peerconnection.h"
#include "webrtc/api/peerconnectioninterface.h"
#include "webrtc/api/mediastreaminterface.h"
#include "webrtc/api/webrtcsession.h"
#include "webrtc/base/checks.h"
#include "webrtc/base/timeutils.h"
#include "webrtc/media/base/mediachannel.h"
#include "webrtc/p2p/base/candidate.h"
#include "webrtc/p2p/base/p2pconstants.h"
#include "webrtc/p2p/base/port.h"
namespace webrtc {
namespace {
std::string RTCCertificateIDFromFingerprint(const std::string& fingerprint) {
return "RTCCertificate_" + fingerprint;
}
std::string RTCIceCandidatePairStatsIDFromConnectionInfo(
const cricket::ConnectionInfo& info) {
return "RTCIceCandidatePair_" + info.local_candidate.id() + "_" +
info.remote_candidate.id();
}
std::string RTCMediaStreamTrackStatsIDFromMediaStreamTrackInterface(
const MediaStreamTrackInterface& track) {
return "RTCMediaStreamTrack_" + track.id();
}
std::string RTCTransportStatsIDFromTransportChannel(
const std::string& transport_name, int channel_component) {
return "RTCTransport_" + transport_name + "_" +
rtc::ToString<>(channel_component);
}
std::string RTCTransportStatsIDFromBaseChannel(
const ProxyTransportMap& proxy_to_transport,
const cricket::BaseChannel& base_channel) {
auto proxy_it = proxy_to_transport.find(base_channel.content_name());
if (proxy_it == proxy_to_transport.cend())
return "";
return RTCTransportStatsIDFromTransportChannel(
proxy_it->second, cricket::ICE_CANDIDATE_COMPONENT_RTP);
}
std::string RTCInboundRTPStreamStatsIDFromSSRC(bool audio, uint32_t ssrc) {
return audio ? "RTCInboundRTPAudioStream_" + rtc::ToString<>(ssrc)
: "RTCInboundRTPVideoStream_" + rtc::ToString<>(ssrc);
}
std::string RTCOutboundRTPStreamStatsIDFromSSRC(bool audio, uint32_t ssrc) {
return audio ? "RTCOutboundRTPAudioStream_" + rtc::ToString<>(ssrc)
: "RTCOutboundRTPVideoStream_" + rtc::ToString<>(ssrc);
}
const char* CandidateTypeToRTCIceCandidateType(const std::string& type) {
if (type == cricket::LOCAL_PORT_TYPE)
return RTCIceCandidateType::kHost;
if (type == cricket::STUN_PORT_TYPE)
return RTCIceCandidateType::kSrflx;
if (type == cricket::PRFLX_PORT_TYPE)
return RTCIceCandidateType::kPrflx;
if (type == cricket::RELAY_PORT_TYPE)
return RTCIceCandidateType::kRelay;
RTC_NOTREACHED();
return nullptr;
}
const char* DataStateToRTCDataChannelState(
DataChannelInterface::DataState state) {
switch (state) {
case DataChannelInterface::kConnecting:
return RTCDataChannelState::kConnecting;
case DataChannelInterface::kOpen:
return RTCDataChannelState::kOpen;
case DataChannelInterface::kClosing:
return RTCDataChannelState::kClosing;
case DataChannelInterface::kClosed:
return RTCDataChannelState::kClosed;
default:
RTC_NOTREACHED();
return nullptr;
}
}
void SetMediaStreamTrackStatsFromMediaStreamTrackInterface(
const MediaStreamTrackInterface& track,
RTCMediaStreamTrackStats* track_stats) {
track_stats->track_identifier = track.id();
track_stats->ended = (track.state() == MediaStreamTrackInterface::kEnded);
}
void SetInboundRTPStreamStatsFromMediaReceiverInfo(
const cricket::MediaReceiverInfo& media_receiver_info,
RTCInboundRTPStreamStats* inbound_stats) {
RTC_DCHECK(inbound_stats);
inbound_stats->ssrc = rtc::ToString<>(media_receiver_info.ssrc());
// TODO(hbos): Support the remote case. crbug.com/657855
inbound_stats->is_remote = false;
// TODO(hbos): Set |codec_id| when we have |RTCCodecStats|. Maybe relevant:
// |media_receiver_info.codec_name|. crbug.com/657854, 657855, 659117
inbound_stats->packets_received =
static_cast<uint32_t>(media_receiver_info.packets_rcvd);
inbound_stats->bytes_received =
static_cast<uint64_t>(media_receiver_info.bytes_rcvd);
inbound_stats->fraction_lost =
static_cast<double>(media_receiver_info.fraction_lost);
}
void SetInboundRTPStreamStatsFromVoiceReceiverInfo(
const cricket::VoiceReceiverInfo& voice_receiver_info,
RTCInboundRTPStreamStats* inbound_stats) {
SetInboundRTPStreamStatsFromMediaReceiverInfo(
voice_receiver_info, inbound_stats);
inbound_stats->media_type = "audio";
inbound_stats->jitter =
static_cast<double>(voice_receiver_info.jitter_ms) /
rtc::kNumMillisecsPerSec;
}
void SetInboundRTPStreamStatsFromVideoReceiverInfo(
const cricket::VideoReceiverInfo& video_receiver_info,
RTCInboundRTPStreamStats* inbound_stats) {
SetInboundRTPStreamStatsFromMediaReceiverInfo(
video_receiver_info, inbound_stats);
inbound_stats->media_type = "video";
}
void SetOutboundRTPStreamStatsFromMediaSenderInfo(
const cricket::MediaSenderInfo& media_sender_info,
RTCOutboundRTPStreamStats* outbound_stats) {
RTC_DCHECK(outbound_stats);
outbound_stats->ssrc = rtc::ToString<>(media_sender_info.ssrc());
// TODO(hbos): Support the remote case. crbug.com/657856
outbound_stats->is_remote = false;
// TODO(hbos): Set |codec_id| when we have |RTCCodecStats|. Maybe relevant:
// |media_sender_info.codec_name|. crbug.com/657854, 657856, 659117
outbound_stats->packets_sent =
static_cast<uint32_t>(media_sender_info.packets_sent);
outbound_stats->bytes_sent =
static_cast<uint64_t>(media_sender_info.bytes_sent);
outbound_stats->round_trip_time =
static_cast<double>(media_sender_info.rtt_ms) / rtc::kNumMillisecsPerSec;
}
void SetOutboundRTPStreamStatsFromVoiceSenderInfo(
const cricket::VoiceSenderInfo& voice_sender_info,
RTCOutboundRTPStreamStats* outbound_audio) {
SetOutboundRTPStreamStatsFromMediaSenderInfo(
voice_sender_info, outbound_audio);
outbound_audio->media_type = "audio";
// |fir_count|, |pli_count| and |sli_count| are only valid for video and are
// purposefully left undefined for audio.
}
void SetOutboundRTPStreamStatsFromVideoSenderInfo(
const cricket::VideoSenderInfo& video_sender_info,
RTCOutboundRTPStreamStats* outbound_video) {
SetOutboundRTPStreamStatsFromMediaSenderInfo(
video_sender_info, outbound_video);
outbound_video->media_type = "video";
outbound_video->fir_count =
static_cast<uint32_t>(video_sender_info.firs_rcvd);
outbound_video->pli_count =
static_cast<uint32_t>(video_sender_info.plis_rcvd);
outbound_video->nack_count =
static_cast<uint32_t>(video_sender_info.nacks_rcvd);
}
void ProduceCertificateStatsFromSSLCertificateStats(
int64_t timestamp_us, const rtc::SSLCertificateStats& certificate_stats,
RTCStatsReport* report) {
RTCCertificateStats* prev_certificate_stats = nullptr;
for (const rtc::SSLCertificateStats* s = &certificate_stats; s;
s = s->issuer.get()) {
RTCCertificateStats* certificate_stats = new RTCCertificateStats(
RTCCertificateIDFromFingerprint(s->fingerprint), timestamp_us);
certificate_stats->fingerprint = s->fingerprint;
certificate_stats->fingerprint_algorithm = s->fingerprint_algorithm;
certificate_stats->base64_certificate = s->base64_certificate;
if (prev_certificate_stats)
prev_certificate_stats->issuer_certificate_id = certificate_stats->id();
report->AddStats(std::unique_ptr<RTCCertificateStats>(certificate_stats));
prev_certificate_stats = certificate_stats;
}
}
const std::string& ProduceIceCandidateStats(
int64_t timestamp_us, const cricket::Candidate& candidate, bool is_local,
RTCStatsReport* report) {
const std::string& id = "RTCIceCandidate_" + candidate.id();
const RTCStats* stats = report->Get(id);
if (!stats) {
std::unique_ptr<RTCIceCandidateStats> candidate_stats;
if (is_local)
candidate_stats.reset(new RTCLocalIceCandidateStats(id, timestamp_us));
else
candidate_stats.reset(new RTCRemoteIceCandidateStats(id, timestamp_us));
candidate_stats->ip = candidate.address().ipaddr().ToString();
candidate_stats->port = static_cast<int32_t>(candidate.address().port());
candidate_stats->protocol = candidate.protocol();
candidate_stats->candidate_type = CandidateTypeToRTCIceCandidateType(
candidate.type());
candidate_stats->priority = static_cast<int32_t>(candidate.priority());
stats = candidate_stats.get();
report->AddStats(std::move(candidate_stats));
}
RTC_DCHECK_EQ(stats->type(), is_local ? RTCLocalIceCandidateStats::kType
: RTCRemoteIceCandidateStats::kType);
return stats->id();
}
void ProduceMediaStreamAndTrackStats(
int64_t timestamp_us,
rtc::scoped_refptr<StreamCollectionInterface> streams,
bool is_local,
RTCStatsReport* report) {
// TODO(hbos): When "AddTrack" is implemented we should iterate tracks to
// find which streams exist, not iterate streams to find tracks.
// crbug.com/659137
// TODO(hbos): Return stats of detached tracks. We have to perform stats
// gathering at the time of detachment to get accurate stats and timestamps.
// crbug.com/659137
if (!streams)
return;
for (size_t i = 0; i < streams->count(); ++i) {
MediaStreamInterface* stream = streams->at(i);
std::unique_ptr<RTCMediaStreamStats> stream_stats(
new RTCMediaStreamStats("RTCMediaStream_" + stream->label(),
timestamp_us));
stream_stats->stream_identifier = stream->label();
stream_stats->track_ids = std::vector<std::string>();
// Audio Tracks
for (const rtc::scoped_refptr<AudioTrackInterface>& audio_track :
stream->GetAudioTracks()) {
std::string id = RTCMediaStreamTrackStatsIDFromMediaStreamTrackInterface(
*audio_track.get());
if (report->Get(id)) {
// Skip track, stats already exist for it.
continue;
}
std::unique_ptr<RTCMediaStreamTrackStats> audio_track_stats(
new RTCMediaStreamTrackStats(id, timestamp_us));
stream_stats->track_ids->push_back(audio_track_stats->id());
SetMediaStreamTrackStatsFromMediaStreamTrackInterface(
*audio_track.get(),
audio_track_stats.get());
audio_track_stats->remote_source = !is_local;
audio_track_stats->detached = false;
int signal_level;
if (audio_track->GetSignalLevel(&signal_level)) {
// Convert signal level from [0,32767] int to [0,1] double.
RTC_DCHECK_GE(signal_level, 0);
RTC_DCHECK_LE(signal_level, 32767);
audio_track_stats->audio_level = signal_level / 32767.0;
}
if (audio_track->GetAudioProcessor()) {
AudioProcessorInterface::AudioProcessorStats audio_processor_stats;
audio_track->GetAudioProcessor()->GetStats(&audio_processor_stats);
audio_track_stats->echo_return_loss = static_cast<double>(
audio_processor_stats.echo_return_loss);
audio_track_stats->echo_return_loss_enhancement = static_cast<double>(
audio_processor_stats.echo_return_loss_enhancement);
}
report->AddStats(std::move(audio_track_stats));
}
// Video Tracks
for (const rtc::scoped_refptr<VideoTrackInterface>& video_track :
stream->GetVideoTracks()) {
std::string id = RTCMediaStreamTrackStatsIDFromMediaStreamTrackInterface(
*video_track.get());
if (report->Get(id)) {
// Skip track, stats already exist for it.
continue;
}
std::unique_ptr<RTCMediaStreamTrackStats> video_track_stats(
new RTCMediaStreamTrackStats(id, timestamp_us));
stream_stats->track_ids->push_back(video_track_stats->id());
SetMediaStreamTrackStatsFromMediaStreamTrackInterface(
*video_track.get(),
video_track_stats.get());
video_track_stats->remote_source = !is_local;
video_track_stats->detached = false;
if (video_track->GetSource()) {
VideoTrackSourceInterface::Stats video_track_source_stats;
if (video_track->GetSource()->GetStats(&video_track_source_stats)) {
video_track_stats->frame_width = static_cast<uint32_t>(
video_track_source_stats.input_width);
video_track_stats->frame_height = static_cast<uint32_t>(
video_track_source_stats.input_height);
}
}
report->AddStats(std::move(video_track_stats));
}
report->AddStats(std::move(stream_stats));
}
}
} // namespace
rtc::scoped_refptr<RTCStatsCollector> RTCStatsCollector::Create(
PeerConnection* pc, int64_t cache_lifetime_us) {
return rtc::scoped_refptr<RTCStatsCollector>(
new rtc::RefCountedObject<RTCStatsCollector>(pc, cache_lifetime_us));
}
RTCStatsCollector::RTCStatsCollector(PeerConnection* pc,
int64_t cache_lifetime_us)
: pc_(pc),
signaling_thread_(pc->session()->signaling_thread()),
worker_thread_(pc->session()->worker_thread()),
network_thread_(pc->session()->network_thread()),
num_pending_partial_reports_(0),
partial_report_timestamp_us_(0),
cache_timestamp_us_(0),
cache_lifetime_us_(cache_lifetime_us) {
RTC_DCHECK(pc_);
RTC_DCHECK(signaling_thread_);
RTC_DCHECK(worker_thread_);
RTC_DCHECK(network_thread_);
RTC_DCHECK_GE(cache_lifetime_us_, 0);
pc_->SignalDataChannelCreated.connect(
this, &RTCStatsCollector::OnDataChannelCreated);
}
void RTCStatsCollector::GetStatsReport(
rtc::scoped_refptr<RTCStatsCollectorCallback> callback) {
RTC_DCHECK(signaling_thread_->IsCurrent());
RTC_DCHECK(callback);
callbacks_.push_back(callback);
// "Now" using a monotonically increasing timer.
int64_t cache_now_us = rtc::TimeMicros();
if (cached_report_ &&
cache_now_us - cache_timestamp_us_ <= cache_lifetime_us_) {
// We have a fresh cached report to deliver.
DeliverCachedReport();
} else if (!num_pending_partial_reports_) {
// Only start gathering stats if we're not already gathering stats. In the
// case of already gathering stats, |callback_| will be invoked when there
// are no more pending partial reports.
// "Now" using a system clock, relative to the UNIX epoch (Jan 1, 1970,
// UTC), in microseconds. The system clock could be modified and is not
// necessarily monotonically increasing.
int64_t timestamp_us = rtc::TimeUTCMicros();
num_pending_partial_reports_ = 3;
partial_report_timestamp_us_ = cache_now_us;
invoker_.AsyncInvoke<void>(RTC_FROM_HERE, signaling_thread_,
rtc::Bind(&RTCStatsCollector::ProducePartialResultsOnSignalingThread,
rtc::scoped_refptr<RTCStatsCollector>(this), timestamp_us));
invoker_.AsyncInvoke<void>(RTC_FROM_HERE, worker_thread_,
rtc::Bind(&RTCStatsCollector::ProducePartialResultsOnWorkerThread,
rtc::scoped_refptr<RTCStatsCollector>(this), timestamp_us));
invoker_.AsyncInvoke<void>(RTC_FROM_HERE, network_thread_,
rtc::Bind(&RTCStatsCollector::ProducePartialResultsOnNetworkThread,
rtc::scoped_refptr<RTCStatsCollector>(this), timestamp_us));
}
}
void RTCStatsCollector::ClearCachedStatsReport() {
RTC_DCHECK(signaling_thread_->IsCurrent());
cached_report_ = nullptr;
}
void RTCStatsCollector::ProducePartialResultsOnSignalingThread(
int64_t timestamp_us) {
RTC_DCHECK(signaling_thread_->IsCurrent());
rtc::scoped_refptr<RTCStatsReport> report = RTCStatsReport::Create(
timestamp_us);
SessionStats session_stats;
if (pc_->session()->GetTransportStats(&session_stats)) {
std::map<std::string, CertificateStatsPair> transport_cert_stats =
PrepareTransportCertificateStats_s(session_stats);
ProduceCertificateStats_s(
timestamp_us, transport_cert_stats, report.get());
ProduceIceCandidateAndPairStats_s(
timestamp_us, session_stats, report.get());
ProduceRTPStreamStats_s(
timestamp_us, session_stats, report.get());
ProduceTransportStats_s(
timestamp_us, session_stats, transport_cert_stats, report.get());
}
ProduceDataChannelStats_s(timestamp_us, report.get());
ProduceMediaStreamAndTrackStats_s(timestamp_us, report.get());
ProducePeerConnectionStats_s(timestamp_us, report.get());
AddPartialResults(report);
}
void RTCStatsCollector::ProducePartialResultsOnWorkerThread(
int64_t timestamp_us) {
RTC_DCHECK(worker_thread_->IsCurrent());
rtc::scoped_refptr<RTCStatsReport> report = RTCStatsReport::Create(
timestamp_us);
// TODO(hbos): Gather stats on worker thread.
// pc_->session()'s channels are owned by the signaling thread but there are
// some stats that are gathered on the worker thread. Instead of a synchronous
// invoke on "s->w" we could to the "w" work here asynchronously if it wasn't
// for the ownership issue. Synchronous invokes in other places makes it
// difficult to introduce locks without introducing deadlocks and the channels
// are not reference counted.
AddPartialResults(report);
}
void RTCStatsCollector::ProducePartialResultsOnNetworkThread(
int64_t timestamp_us) {
RTC_DCHECK(network_thread_->IsCurrent());
rtc::scoped_refptr<RTCStatsReport> report = RTCStatsReport::Create(
timestamp_us);
// TODO(hbos): Gather stats on network thread.
// pc_->session()'s channels are owned by the signaling thread but there are
// some stats that are gathered on the network thread. Instead of a
// synchronous invoke on "s->n" we could to the "n" work here asynchronously
// if it wasn't for the ownership issue. Synchronous invokes in other places
// makes it difficult to introduce locks without introducing deadlocks and the
// channels are not reference counted.
AddPartialResults(report);
}
void RTCStatsCollector::AddPartialResults(
const rtc::scoped_refptr<RTCStatsReport>& partial_report) {
if (!signaling_thread_->IsCurrent()) {
invoker_.AsyncInvoke<void>(RTC_FROM_HERE, signaling_thread_,
rtc::Bind(&RTCStatsCollector::AddPartialResults_s,
rtc::scoped_refptr<RTCStatsCollector>(this),
partial_report));
return;
}
AddPartialResults_s(partial_report);
}
void RTCStatsCollector::AddPartialResults_s(
rtc::scoped_refptr<RTCStatsReport> partial_report) {
RTC_DCHECK(signaling_thread_->IsCurrent());
RTC_DCHECK_GT(num_pending_partial_reports_, 0);
if (!partial_report_)
partial_report_ = partial_report;
else
partial_report_->TakeMembersFrom(partial_report);
--num_pending_partial_reports_;
if (!num_pending_partial_reports_) {
cache_timestamp_us_ = partial_report_timestamp_us_;
cached_report_ = partial_report_;
partial_report_ = nullptr;
DeliverCachedReport();
}
}
void RTCStatsCollector::DeliverCachedReport() {
RTC_DCHECK(signaling_thread_->IsCurrent());
RTC_DCHECK(!callbacks_.empty());
RTC_DCHECK(cached_report_);
for (const rtc::scoped_refptr<RTCStatsCollectorCallback>& callback :
callbacks_) {
callback->OnStatsDelivered(cached_report_);
}
callbacks_.clear();
}
void RTCStatsCollector::ProduceCertificateStats_s(
int64_t timestamp_us,
const std::map<std::string, CertificateStatsPair>& transport_cert_stats,
RTCStatsReport* report) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
for (const auto& transport_cert_stats_pair : transport_cert_stats) {
if (transport_cert_stats_pair.second.local) {
ProduceCertificateStatsFromSSLCertificateStats(
timestamp_us, *transport_cert_stats_pair.second.local.get(), report);
}
if (transport_cert_stats_pair.second.remote) {
ProduceCertificateStatsFromSSLCertificateStats(
timestamp_us, *transport_cert_stats_pair.second.remote.get(), report);
}
}
}
void RTCStatsCollector::ProduceDataChannelStats_s(
int64_t timestamp_us, RTCStatsReport* report) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
for (const rtc::scoped_refptr<DataChannel>& data_channel :
pc_->sctp_data_channels()) {
std::unique_ptr<RTCDataChannelStats> data_channel_stats(
new RTCDataChannelStats(
"RTCDataChannel_" + rtc::ToString<>(data_channel->id()),
timestamp_us));
data_channel_stats->label = data_channel->label();
data_channel_stats->protocol = data_channel->protocol();
data_channel_stats->datachannelid = data_channel->id();
data_channel_stats->state =
DataStateToRTCDataChannelState(data_channel->state());
data_channel_stats->messages_sent = data_channel->messages_sent();
data_channel_stats->bytes_sent = data_channel->bytes_sent();
data_channel_stats->messages_received = data_channel->messages_received();
data_channel_stats->bytes_received = data_channel->bytes_received();
report->AddStats(std::move(data_channel_stats));
}
}
void RTCStatsCollector::ProduceIceCandidateAndPairStats_s(
int64_t timestamp_us, const SessionStats& session_stats,
RTCStatsReport* report) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
for (const auto& transport_stats : session_stats.transport_stats) {
for (const auto& channel_stats : transport_stats.second.channel_stats) {
for (const cricket::ConnectionInfo& info :
channel_stats.connection_infos) {
std::unique_ptr<RTCIceCandidatePairStats> candidate_pair_stats(
new RTCIceCandidatePairStats(
RTCIceCandidatePairStatsIDFromConnectionInfo(info),
timestamp_us));
// TODO(hbos): There could be other candidates that are not paired with
// anything. We don't have a complete list. Local candidates come from
// Port objects, and prflx candidates (both local and remote) are only
// stored in candidate pairs. crbug.com/632723
candidate_pair_stats->local_candidate_id = ProduceIceCandidateStats(
timestamp_us, info.local_candidate, true, report);
candidate_pair_stats->remote_candidate_id = ProduceIceCandidateStats(
timestamp_us, info.remote_candidate, false, report);
// TODO(hbos): This writable is different than the spec. It goes to
// false after a certain amount of time without a response passes.
// crbug.com/633550
candidate_pair_stats->writable = info.writable;
candidate_pair_stats->bytes_sent =
static_cast<uint64_t>(info.sent_total_bytes);
candidate_pair_stats->bytes_received =
static_cast<uint64_t>(info.recv_total_bytes);
// TODO(hbos): The |info.rtt| measurement is smoothed. It shouldn't be
// smoothed according to the spec. crbug.com/633550. See
// https://w3c.github.io/webrtc-stats/#dom-rtcicecandidatepairstats-currentrtt
candidate_pair_stats->current_rtt =
static_cast<double>(info.rtt) / rtc::kNumMillisecsPerSec;
candidate_pair_stats->requests_sent =
static_cast<uint64_t>(info.sent_ping_requests_total);
candidate_pair_stats->responses_received =
static_cast<uint64_t>(info.recv_ping_responses);
candidate_pair_stats->responses_sent =
static_cast<uint64_t>(info.sent_ping_responses);
report->AddStats(std::move(candidate_pair_stats));
}
}
}
}
void RTCStatsCollector::ProduceMediaStreamAndTrackStats_s(
int64_t timestamp_us, RTCStatsReport* report) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
ProduceMediaStreamAndTrackStats(
timestamp_us, pc_->local_streams(), true, report);
ProduceMediaStreamAndTrackStats(
timestamp_us, pc_->remote_streams(), false, report);
}
void RTCStatsCollector::ProducePeerConnectionStats_s(
int64_t timestamp_us, RTCStatsReport* report) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
std::unique_ptr<RTCPeerConnectionStats> stats(
new RTCPeerConnectionStats("RTCPeerConnection", timestamp_us));
stats->data_channels_opened = internal_record_.data_channels_opened;
stats->data_channels_closed = internal_record_.data_channels_closed;
report->AddStats(std::move(stats));
}
void RTCStatsCollector::ProduceRTPStreamStats_s(
int64_t timestamp_us, const SessionStats& session_stats,
RTCStatsReport* report) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
// Audio
if (pc_->session()->voice_channel()) {
cricket::VoiceMediaInfo voice_media_info;
if (pc_->session()->voice_channel()->GetStats(&voice_media_info)) {
std::string transport_id = RTCTransportStatsIDFromBaseChannel(
session_stats.proxy_to_transport, *pc_->session()->voice_channel());
RTC_DCHECK(!transport_id.empty());
// Inbound
for (const cricket::VoiceReceiverInfo& voice_receiver_info :
voice_media_info.receivers) {
// TODO(nisse): SSRC == 0 currently means none. Delete check when that
// is fixed.
if (voice_receiver_info.ssrc() == 0)
continue;
std::unique_ptr<RTCInboundRTPStreamStats> inbound_audio(
new RTCInboundRTPStreamStats(
RTCInboundRTPStreamStatsIDFromSSRC(
true, voice_receiver_info.ssrc()),
timestamp_us));
SetInboundRTPStreamStatsFromVoiceReceiverInfo(
voice_receiver_info, inbound_audio.get());
inbound_audio->transport_id = transport_id;
report->AddStats(std::move(inbound_audio));
}
// Outbound
for (const cricket::VoiceSenderInfo& voice_sender_info :
voice_media_info.senders) {
// TODO(nisse): SSRC == 0 currently means none. Delete check when that
// is fixed.
if (voice_sender_info.ssrc() == 0)
continue;
std::unique_ptr<RTCOutboundRTPStreamStats> outbound_audio(
new RTCOutboundRTPStreamStats(
RTCOutboundRTPStreamStatsIDFromSSRC(
true, voice_sender_info.ssrc()),
timestamp_us));
SetOutboundRTPStreamStatsFromVoiceSenderInfo(
voice_sender_info, outbound_audio.get());
outbound_audio->transport_id = transport_id;
report->AddStats(std::move(outbound_audio));
}
}
}
// Video
if (pc_->session()->video_channel()) {
cricket::VideoMediaInfo video_media_info;
if (pc_->session()->video_channel()->GetStats(&video_media_info)) {
std::string transport_id = RTCTransportStatsIDFromBaseChannel(
session_stats.proxy_to_transport, *pc_->session()->video_channel());
RTC_DCHECK(!transport_id.empty());
// Inbound
for (const cricket::VideoReceiverInfo& video_receiver_info :
video_media_info.receivers) {
// TODO(nisse): SSRC == 0 currently means none. Delete check when that
// is fixed.
if (video_receiver_info.ssrc() == 0)
continue;
std::unique_ptr<RTCInboundRTPStreamStats> inbound_video(
new RTCInboundRTPStreamStats(
RTCInboundRTPStreamStatsIDFromSSRC(
false, video_receiver_info.ssrc()),
timestamp_us));
SetInboundRTPStreamStatsFromVideoReceiverInfo(
video_receiver_info, inbound_video.get());
inbound_video->transport_id = transport_id;
report->AddStats(std::move(inbound_video));
}
// Outbound
for (const cricket::VideoSenderInfo& video_sender_info :
video_media_info.senders) {
// TODO(nisse): SSRC == 0 currently means none. Delete check when that
// is fixed.
if (video_sender_info.ssrc() == 0)
continue;
std::unique_ptr<RTCOutboundRTPStreamStats> outbound_video(
new RTCOutboundRTPStreamStats(
RTCOutboundRTPStreamStatsIDFromSSRC(
false, video_sender_info.ssrc()),
timestamp_us));
SetOutboundRTPStreamStatsFromVideoSenderInfo(
video_sender_info, outbound_video.get());
outbound_video->transport_id = transport_id;
report->AddStats(std::move(outbound_video));
}
}
}
}
void RTCStatsCollector::ProduceTransportStats_s(
int64_t timestamp_us, const SessionStats& session_stats,
const std::map<std::string, CertificateStatsPair>& transport_cert_stats,
RTCStatsReport* report) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
for (const auto& transport : session_stats.transport_stats) {
// Get reference to RTCP channel, if it exists.
std::string rtcp_transport_stats_id;
for (const auto& channel_stats : transport.second.channel_stats) {
if (channel_stats.component ==
cricket::ICE_CANDIDATE_COMPONENT_RTCP) {
rtcp_transport_stats_id = RTCTransportStatsIDFromTransportChannel(
transport.second.transport_name, channel_stats.component);
break;
}
}
// Get reference to local and remote certificates of this transport, if they
// exist.
const auto& certificate_stats_it = transport_cert_stats.find(
transport.second.transport_name);
RTC_DCHECK(certificate_stats_it != transport_cert_stats.cend());
std::string local_certificate_id;
if (certificate_stats_it->second.local) {
local_certificate_id = RTCCertificateIDFromFingerprint(
certificate_stats_it->second.local->fingerprint);
}
std::string remote_certificate_id;
if (certificate_stats_it->second.remote) {
remote_certificate_id = RTCCertificateIDFromFingerprint(
certificate_stats_it->second.remote->fingerprint);
}
// There is one transport stats for each channel.
for (const auto& channel_stats : transport.second.channel_stats) {
std::unique_ptr<RTCTransportStats> transport_stats(
new RTCTransportStats(
RTCTransportStatsIDFromTransportChannel(
transport.second.transport_name, channel_stats.component),
timestamp_us));
transport_stats->bytes_sent = 0;
transport_stats->bytes_received = 0;
transport_stats->active_connection = false;
for (const cricket::ConnectionInfo& info :
channel_stats.connection_infos) {
*transport_stats->bytes_sent += info.sent_total_bytes;
*transport_stats->bytes_received += info.recv_total_bytes;
if (info.best_connection) {
transport_stats->active_connection = true;
transport_stats->selected_candidate_pair_id =
RTCIceCandidatePairStatsIDFromConnectionInfo(info);
}
}
if (channel_stats.component != cricket::ICE_CANDIDATE_COMPONENT_RTCP &&
!rtcp_transport_stats_id.empty()) {
transport_stats->rtcp_transport_stats_id = rtcp_transport_stats_id;
}
if (!local_certificate_id.empty())
transport_stats->local_certificate_id = local_certificate_id;
if (!remote_certificate_id.empty())
transport_stats->remote_certificate_id = remote_certificate_id;
report->AddStats(std::move(transport_stats));
}
}
}
std::map<std::string, RTCStatsCollector::CertificateStatsPair>
RTCStatsCollector::PrepareTransportCertificateStats_s(
const SessionStats& session_stats) const {
RTC_DCHECK(signaling_thread_->IsCurrent());
std::map<std::string, CertificateStatsPair> transport_cert_stats;
for (const auto& transport_stats : session_stats.transport_stats) {
CertificateStatsPair certificate_stats_pair;
rtc::scoped_refptr<rtc::RTCCertificate> local_certificate;
if (pc_->session()->GetLocalCertificate(
transport_stats.second.transport_name, &local_certificate)) {
certificate_stats_pair.local =
local_certificate->ssl_certificate().GetStats();
}
std::unique_ptr<rtc::SSLCertificate> remote_certificate =
pc_->session()->GetRemoteSSLCertificate(
transport_stats.second.transport_name);
if (remote_certificate) {
certificate_stats_pair.remote = remote_certificate->GetStats();
}
transport_cert_stats.insert(
std::make_pair(transport_stats.second.transport_name,
std::move(certificate_stats_pair)));
}
return transport_cert_stats;
}
void RTCStatsCollector::OnDataChannelCreated(DataChannel* channel) {
channel->SignalOpened.connect(this, &RTCStatsCollector::OnDataChannelOpened);
channel->SignalClosed.connect(this, &RTCStatsCollector::OnDataChannelClosed);
}
void RTCStatsCollector::OnDataChannelOpened(DataChannel* channel) {
RTC_DCHECK(signaling_thread_->IsCurrent());
bool result = internal_record_.opened_data_channels.insert(
reinterpret_cast<uintptr_t>(channel)).second;
++internal_record_.data_channels_opened;
RTC_DCHECK(result);
}
void RTCStatsCollector::OnDataChannelClosed(DataChannel* channel) {
RTC_DCHECK(signaling_thread_->IsCurrent());
// Only channels that have been fully opened (and have increased the
// |data_channels_opened_| counter) increase the closed counter.
if (internal_record_.opened_data_channels.find(
reinterpret_cast<uintptr_t>(channel)) !=
internal_record_.opened_data_channels.end()) {
++internal_record_.data_channels_closed;
}
}
const char* CandidateTypeToRTCIceCandidateTypeForTesting(
const std::string& type) {
return CandidateTypeToRTCIceCandidateType(type);
}
const char* DataStateToRTCDataChannelStateForTesting(
DataChannelInterface::DataState state) {
return DataStateToRTCDataChannelState(state);
}
} // namespace webrtc
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