diff options
Diffstat (limited to 'third_party/libwebrtc/pc/legacy_stats_collector.cc')
| -rw-r--r-- | third_party/libwebrtc/pc/legacy_stats_collector.cc | 1393 |
1 files changed, 1393 insertions, 0 deletions
diff --git a/third_party/libwebrtc/pc/legacy_stats_collector.cc b/third_party/libwebrtc/pc/legacy_stats_collector.cc new file mode 100644 index 0000000000..6829e359b8 --- /dev/null +++ b/third_party/libwebrtc/pc/legacy_stats_collector.cc @@ -0,0 +1,1393 @@ +/* + * 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 <set> +#include <utility> +#include <vector> + +#include "absl/strings/string_view.h" +#include "absl/types/optional.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 "media/base/media_channel_impl.h" +#include "modules/audio_processing/include/audio_processing_statistics.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, 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.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); + + 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_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::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, round(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, + 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 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_DCHECK_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_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 = + ExtractSessionInfo(); + + // 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(); + ExtractDataInfo(); + 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, 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()); + 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.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; +} + +std::map<std::string, std::string> LegacyStatsCollector::ExtractSessionInfo() { + TRACE_EVENT0("webrtc", "LegacyStatsCollector::ExtractSessionInfo"); + RTC_DCHECK_RUN_ON(pc_->signaling_thread()); + + SessionStats stats; + 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)); + }); + + 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, + absl::optional<std::string> sctp_transport_name, + absl::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)); + } + int ssl_cipher_suite = channel_iter.ssl_cipher_suite; + if (ssl_cipher_suite != rtc::kTlsNullWithNullNull && + 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 LegacyStatsCollector::ExtractBweInfo() { + RTC_DCHECK_RUN_ON(pc_->signaling_thread()); + + 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. + 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() { + RTC_DCHECK_RUN_ON(pc_->signaling_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 |