Move webrtc/{tools => rtc_tools}

webrtc/tools/event_log_visualizer/analyzer.cc

-/*
- *  Copyright (c) 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/tools/event_log_visualizer/analyzer.h"
-
-#include <algorithm>
-#include <limits>
-#include <map>
-#include <sstream>
-#include <string>
-#include <utility>
-
-#include "webrtc/base/checks.h"
-#include "webrtc/base/format_macros.h"
-#include "webrtc/base/logging.h"
-#include "webrtc/base/ptr_util.h"
-#include "webrtc/base/rate_statistics.h"
-#include "webrtc/call/audio_receive_stream.h"
-#include "webrtc/call/audio_send_stream.h"
-#include "webrtc/call/call.h"
-#include "webrtc/common_types.h"
-#include "webrtc/modules/audio_coding/neteq/tools/audio_sink.h"
-#include "webrtc/modules/audio_coding/neteq/tools/fake_decode_from_file.h"
-#include "webrtc/modules/audio_coding/neteq/tools/neteq_delay_analyzer.h"
-#include "webrtc/modules/audio_coding/neteq/tools/neteq_replacement_input.h"
-#include "webrtc/modules/audio_coding/neteq/tools/neteq_test.h"
-#include "webrtc/modules/audio_coding/neteq/tools/resample_input_audio_file.h"
-#include "webrtc/modules/congestion_controller/include/congestion_controller.h"
-#include "webrtc/modules/include/module_common_types.h"
-#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp.h"
-#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
-#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/common_header.h"
-#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.h"
-#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/remb.h"
-#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/sender_report.h"
-#include "webrtc/modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h"
-#include "webrtc/modules/rtp_rtcp/source/rtp_header_extensions.h"
-#include "webrtc/modules/rtp_rtcp/source/rtp_utility.h"
-#include "webrtc/video_receive_stream.h"
-#include "webrtc/video_send_stream.h"
-
-namespace webrtc {
-namespace plotting {
-
-namespace {
-
-void SortPacketFeedbackVector(std::vector<PacketFeedback>* vec) {
-  auto pred = [](const PacketFeedback& packet_feedback) {
-    return packet_feedback.arrival_time_ms == PacketFeedback::kNotReceived;
-  };
-  vec->erase(std::remove_if(vec->begin(), vec->end(), pred), vec->end());
-  std::sort(vec->begin(), vec->end(), PacketFeedbackComparator());
-}
-
-std::string SsrcToString(uint32_t ssrc) {
-  std::stringstream ss;
-  ss << "SSRC " << ssrc;
-  return ss.str();
-}
-
-// Checks whether an SSRC is contained in the list of desired SSRCs.
-// Note that an empty SSRC list matches every SSRC.
-bool MatchingSsrc(uint32_t ssrc, const std::vector<uint32_t>& desired_ssrc) {
-  if (desired_ssrc.size() == 0)
-    return true;
-  return std::find(desired_ssrc.begin(), desired_ssrc.end(), ssrc) !=
-         desired_ssrc.end();
-}
-
-double AbsSendTimeToMicroseconds(int64_t abs_send_time) {
-  // The timestamp is a fixed point representation with 6 bits for seconds
-  // and 18 bits for fractions of a second. Thus, we divide by 2^18 to get the
-  // time in seconds and then multiply by 1000000 to convert to microseconds.
-  static constexpr double kTimestampToMicroSec =
-      1000000.0 / static_cast<double>(1ul << 18);
-  return abs_send_time * kTimestampToMicroSec;
-}
-
-// Computes the difference |later| - |earlier| where |later| and |earlier|
-// are counters that wrap at |modulus|. The difference is chosen to have the
-// least absolute value. For example if |modulus| is 8, then the difference will
-// be chosen in the range [-3, 4]. If |modulus| is 9, then the difference will
-// be in [-4, 4].
-int64_t WrappingDifference(uint32_t later, uint32_t earlier, int64_t modulus) {
-  RTC_DCHECK_LE(1, modulus);
-  RTC_DCHECK_LT(later, modulus);
-  RTC_DCHECK_LT(earlier, modulus);
-  int64_t difference =
-      static_cast<int64_t>(later) - static_cast<int64_t>(earlier);
-  int64_t max_difference = modulus / 2;
-  int64_t min_difference = max_difference - modulus + 1;
-  if (difference > max_difference) {
-    difference -= modulus;
-  }
-  if (difference < min_difference) {
-    difference += modulus;
-  }
-  if (difference > max_difference / 2 || difference < min_difference / 2) {
-    LOG(LS_WARNING) << "Difference between" << later << " and " << earlier
-                    << " expected to be in the range (" << min_difference / 2
-                    << "," << max_difference / 2 << ") but is " << difference
-                    << ". Correct unwrapping is uncertain.";
-  }
-  return difference;
-}
-
-// Return default values for header extensions, to use on streams without stored
-// mapping data. Currently this only applies to audio streams, since the mapping
-// is not stored in the event log.
-// TODO(ivoc): Remove this once this mapping is stored in the event log for
-//             audio streams. Tracking bug: webrtc:6399
-webrtc::RtpHeaderExtensionMap GetDefaultHeaderExtensionMap() {
-  webrtc::RtpHeaderExtensionMap default_map;
-  default_map.Register<AudioLevel>(webrtc::RtpExtension::kAudioLevelDefaultId);
-  default_map.Register<AbsoluteSendTime>(
-      webrtc::RtpExtension::kAbsSendTimeDefaultId);
-  return default_map;
-}
-
-constexpr float kLeftMargin = 0.01f;
-constexpr float kRightMargin = 0.02f;
-constexpr float kBottomMargin = 0.02f;
-constexpr float kTopMargin = 0.05f;
-
-rtc::Optional<double> NetworkDelayDiff_AbsSendTime(
-    const LoggedRtpPacket& old_packet,
-    const LoggedRtpPacket& new_packet) {
-  if (old_packet.header.extension.hasAbsoluteSendTime &&
-      new_packet.header.extension.hasAbsoluteSendTime) {
-    int64_t send_time_diff = WrappingDifference(
-        new_packet.header.extension.absoluteSendTime,
-        old_packet.header.extension.absoluteSendTime, 1ul << 24);
-    int64_t recv_time_diff = new_packet.timestamp - old_packet.timestamp;
-    double delay_change_us =
-        recv_time_diff - AbsSendTimeToMicroseconds(send_time_diff);
-    return rtc::Optional<double>(delay_change_us / 1000);
-  } else {
-    return rtc::Optional<double>();
-  }
-}
-
-rtc::Optional<double> NetworkDelayDiff_CaptureTime(
-    const LoggedRtpPacket& old_packet,
-    const LoggedRtpPacket& new_packet) {
-  int64_t send_time_diff = WrappingDifference(
-      new_packet.header.timestamp, old_packet.header.timestamp, 1ull << 32);
-  int64_t recv_time_diff = new_packet.timestamp - old_packet.timestamp;
-
-  const double kVideoSampleRate = 90000;
-  // TODO(terelius): We treat all streams as video for now, even though
-  // audio might be sampled at e.g. 16kHz, because it is really difficult to
-  // figure out the true sampling rate of a stream. The effect is that the
-  // delay will be scaled incorrectly for non-video streams.
-
-  double delay_change =
-      static_cast<double>(recv_time_diff) / 1000 -
-      static_cast<double>(send_time_diff) / kVideoSampleRate * 1000;
-  if (delay_change < -10000 || 10000 < delay_change) {
-    LOG(LS_WARNING) << "Very large delay change. Timestamps correct?";
-    LOG(LS_WARNING) << "Old capture time " << old_packet.header.timestamp
-                    << ", received time " << old_packet.timestamp;
-    LOG(LS_WARNING) << "New capture time " << new_packet.header.timestamp
-                    << ", received time " << new_packet.timestamp;
-    LOG(LS_WARNING) << "Receive time difference " << recv_time_diff << " = "
-                    << static_cast<double>(recv_time_diff) / 1000000 << "s";
-    LOG(LS_WARNING) << "Send time difference " << send_time_diff << " = "
-                    << static_cast<double>(send_time_diff) / kVideoSampleRate
-                    << "s";
-  }
-  return rtc::Optional<double>(delay_change);
-}
-
-// For each element in data, use |get_y()| to extract a y-coordinate and
-// store the result in a TimeSeries.
-template <typename DataType>
-void ProcessPoints(
-    rtc::FunctionView<rtc::Optional<float>(const DataType&)> get_y,
-    const std::vector<DataType>& data,
-    uint64_t begin_time,
-    TimeSeries* result) {
-  for (size_t i = 0; i < data.size(); i++) {
-    float x = static_cast<float>(data[i].timestamp - begin_time) / 1000000;
-    rtc::Optional<float> y = get_y(data[i]);
-    if (y)
-      result->points.emplace_back(x, *y);
-  }
-}
-
-// For each pair of adjacent elements in |data|, use |get_y| to extract a
-// y-coordinate and store the result in a TimeSeries. Note that the x-coordinate
-// will be the time of the second element in the pair.
-template <typename DataType, typename ResultType>
-void ProcessPairs(
-    rtc::FunctionView<rtc::Optional<ResultType>(const DataType&,
-                                                const DataType&)> get_y,
-    const std::vector<DataType>& data,
-    uint64_t begin_time,
-    TimeSeries* result) {
-  for (size_t i = 1; i < data.size(); i++) {
-    float x = static_cast<float>(data[i].timestamp - begin_time) / 1000000;
-    rtc::Optional<ResultType> y = get_y(data[i - 1], data[i]);
-    if (y)
-      result->points.emplace_back(x, static_cast<float>(*y));
-  }
-}
-
-// For each element in data, use |extract()| to extract a y-coordinate and
-// store the result in a TimeSeries.
-template <typename DataType, typename ResultType>
-void AccumulatePoints(
-    rtc::FunctionView<rtc::Optional<ResultType>(const DataType&)> extract,
-    const std::vector<DataType>& data,
-    uint64_t begin_time,
-    TimeSeries* result) {
-  ResultType sum = 0;
-  for (size_t i = 0; i < data.size(); i++) {
-    float x = static_cast<float>(data[i].timestamp - begin_time) / 1000000;
-    rtc::Optional<ResultType> y = extract(data[i]);
-    if (y) {
-      sum += *y;
-      result->points.emplace_back(x, static_cast<float>(sum));
-    }
-  }
-}
-
-// For each pair of adjacent elements in |data|, use |extract()| to extract a
-// y-coordinate and store the result in a TimeSeries. Note that the x-coordinate
-// will be the time of the second element in the pair.
-template <typename DataType, typename ResultType>
-void AccumulatePairs(
-    rtc::FunctionView<rtc::Optional<ResultType>(const DataType&,
-                                                const DataType&)> extract,
-    const std::vector<DataType>& data,
-    uint64_t begin_time,
-    TimeSeries* result) {
-  ResultType sum = 0;
-  for (size_t i = 1; i < data.size(); i++) {
-    float x = static_cast<float>(data[i].timestamp - begin_time) / 1000000;
-    rtc::Optional<ResultType> y = extract(data[i - 1], data[i]);
-    if (y)
-      sum += *y;
-    result->points.emplace_back(x, static_cast<float>(sum));
-  }
-}
-
-// Calculates a moving average of |data| and stores the result in a TimeSeries.
-// A data point is generated every |step| microseconds from |begin_time|
-// to |end_time|. The value of each data point is the average of the data
-// during the preceeding |window_duration_us| microseconds.
-template <typename DataType, typename ResultType>
-void MovingAverage(
-    rtc::FunctionView<rtc::Optional<ResultType>(const DataType&)> extract,
-    const std::vector<DataType>& data,
-    uint64_t begin_time,
-    uint64_t end_time,
-    uint64_t window_duration_us,
-    uint64_t step,
-    webrtc::plotting::TimeSeries* result) {
-  size_t window_index_begin = 0;
-  size_t window_index_end = 0;
-  ResultType sum_in_window = 0;
-
-  for (uint64_t t = begin_time; t < end_time + step; t += step) {
-    while (window_index_end < data.size() &&
-           data[window_index_end].timestamp < t) {
-      rtc::Optional<ResultType> value = extract(data[window_index_end]);
-      if (value)
-        sum_in_window += *value;
-      ++window_index_end;
-    }
-    while (window_index_begin < data.size() &&
-           data[window_index_begin].timestamp < t - window_duration_us) {
-      rtc::Optional<ResultType> value = extract(data[window_index_begin]);
-      if (value)
-        sum_in_window -= *value;
-      ++window_index_begin;
-    }
-    float window_duration_s = static_cast<float>(window_duration_us) / 1000000;
-    float x = static_cast<float>(t - begin_time) / 1000000;
-    float y = sum_in_window / window_duration_s;
-    result->points.emplace_back(x, y);
-  }
-}
-
-}  // namespace
-
-EventLogAnalyzer::EventLogAnalyzer(const ParsedRtcEventLog& log)
-    : parsed_log_(log), window_duration_(250000), step_(10000) {
-  uint64_t first_timestamp = std::numeric_limits<uint64_t>::max();
-  uint64_t last_timestamp = std::numeric_limits<uint64_t>::min();
-
-  PacketDirection direction;
-  uint8_t header[IP_PACKET_SIZE];
-  size_t header_length;
-  size_t total_length;
-
-  uint8_t last_incoming_rtcp_packet[IP_PACKET_SIZE];
-  uint8_t last_incoming_rtcp_packet_length = 0;
-
-  // Make a default extension map for streams without configuration information.
-  // TODO(ivoc): Once configuration of audio streams is stored in the event log,
-  //             this can be removed. Tracking bug: webrtc:6399
-  RtpHeaderExtensionMap default_extension_map = GetDefaultHeaderExtensionMap();
-
-  rtc::Optional<uint64_t> last_log_start;
-
-  for (size_t i = 0; i < parsed_log_.GetNumberOfEvents(); i++) {
-    ParsedRtcEventLog::EventType event_type = parsed_log_.GetEventType(i);
-    if (event_type != ParsedRtcEventLog::VIDEO_RECEIVER_CONFIG_EVENT &&
-        event_type != ParsedRtcEventLog::VIDEO_SENDER_CONFIG_EVENT &&
-        event_type != ParsedRtcEventLog::AUDIO_RECEIVER_CONFIG_EVENT &&
-        event_type != ParsedRtcEventLog::AUDIO_SENDER_CONFIG_EVENT &&
-        event_type != ParsedRtcEventLog::LOG_START &&
-        event_type != ParsedRtcEventLog::LOG_END) {
-      uint64_t timestamp = parsed_log_.GetTimestamp(i);
-      first_timestamp = std::min(first_timestamp, timestamp);
-      last_timestamp = std::max(last_timestamp, timestamp);
-    }
-
-    switch (parsed_log_.GetEventType(i)) {
-      case ParsedRtcEventLog::VIDEO_RECEIVER_CONFIG_EVENT: {
-        rtclog::StreamConfig config = parsed_log_.GetVideoReceiveConfig(i);
-        StreamId stream(config.remote_ssrc, kIncomingPacket);
-        video_ssrcs_.insert(stream);
-        StreamId rtx_stream(config.rtx_ssrc, kIncomingPacket);
-        video_ssrcs_.insert(rtx_stream);
-        rtx_ssrcs_.insert(rtx_stream);
-        break;
-      }
-      case ParsedRtcEventLog::VIDEO_SENDER_CONFIG_EVENT: {
-        std::vector<rtclog::StreamConfig> configs =
-            parsed_log_.GetVideoSendConfig(i);
-        for (const auto& config : configs) {
-          StreamId stream(config.local_ssrc, kOutgoingPacket);
-          video_ssrcs_.insert(stream);
-          StreamId rtx_stream(config.rtx_ssrc, kOutgoingPacket);
-          video_ssrcs_.insert(rtx_stream);
-          rtx_ssrcs_.insert(rtx_stream);
-        }
-        break;
-      }
-      case ParsedRtcEventLog::AUDIO_RECEIVER_CONFIG_EVENT: {
-        rtclog::StreamConfig config = parsed_log_.GetAudioReceiveConfig(i);
-        StreamId stream(config.remote_ssrc, kIncomingPacket);
-        audio_ssrcs_.insert(stream);
-        break;
-      }
-      case ParsedRtcEventLog::AUDIO_SENDER_CONFIG_EVENT: {
-        rtclog::StreamConfig config = parsed_log_.GetAudioSendConfig(i);
-        StreamId stream(config.local_ssrc, kOutgoingPacket);
-        audio_ssrcs_.insert(stream);
-        break;
-      }
-      case ParsedRtcEventLog::RTP_EVENT: {
-        RtpHeaderExtensionMap* extension_map = parsed_log_.GetRtpHeader(
-            i, &direction, header, &header_length, &total_length);
-        RtpUtility::RtpHeaderParser rtp_parser(header, header_length);
-        RTPHeader parsed_header;
-        if (extension_map != nullptr) {
-          rtp_parser.Parse(&parsed_header, extension_map);
-        } else {
-          // Use the default extension map.
-          // TODO(ivoc): Once configuration of audio streams is stored in the
-          //             event log, this can be removed.
-          //             Tracking bug: webrtc:6399
-          rtp_parser.Parse(&parsed_header, &default_extension_map);
-        }
-        uint64_t timestamp = parsed_log_.GetTimestamp(i);
-        StreamId stream(parsed_header.ssrc, direction);
-        rtp_packets_[stream].push_back(
-            LoggedRtpPacket(timestamp, parsed_header, total_length));
-        break;
-      }
-      case ParsedRtcEventLog::RTCP_EVENT: {
-        uint8_t packet[IP_PACKET_SIZE];
-        parsed_log_.GetRtcpPacket(i, &direction, packet, &total_length);
-        // Currently incoming RTCP packets are logged twice, both for audio and
-        // video. Only act on one of them. Compare against the previous parsed
-        // incoming RTCP packet.
-        if (direction == webrtc::kIncomingPacket) {
-          RTC_CHECK_LE(total_length, IP_PACKET_SIZE);
-          if (total_length == last_incoming_rtcp_packet_length &&
-              memcmp(last_incoming_rtcp_packet, packet, total_length) == 0) {
-            continue;
-          } else {
-            memcpy(last_incoming_rtcp_packet, packet, total_length);
-            last_incoming_rtcp_packet_length = total_length;
-          }
-        }
-        rtcp::CommonHeader header;
-        const uint8_t* packet_end = packet + total_length;
-        for (const uint8_t* block = packet; block < packet_end;
-             block = header.NextPacket()) {
-          RTC_CHECK(header.Parse(block, packet_end - block));
-          if (header.type() == rtcp::TransportFeedback::kPacketType &&
-              header.fmt() == rtcp::TransportFeedback::kFeedbackMessageType) {
-            std::unique_ptr<rtcp::TransportFeedback> rtcp_packet(
-                rtc::MakeUnique<rtcp::TransportFeedback>());
-            if (rtcp_packet->Parse(header)) {
-              uint32_t ssrc = rtcp_packet->sender_ssrc();
-              StreamId stream(ssrc, direction);
-              uint64_t timestamp = parsed_log_.GetTimestamp(i);
-              rtcp_packets_[stream].push_back(LoggedRtcpPacket(
-                  timestamp, kRtcpTransportFeedback, std::move(rtcp_packet)));
-            }
-          } else if (header.type() == rtcp::SenderReport::kPacketType) {
-            std::unique_ptr<rtcp::SenderReport> rtcp_packet(
-                rtc::MakeUnique<rtcp::SenderReport>());
-            if (rtcp_packet->Parse(header)) {
-              uint32_t ssrc = rtcp_packet->sender_ssrc();
-              StreamId stream(ssrc, direction);
-              uint64_t timestamp = parsed_log_.GetTimestamp(i);
-              rtcp_packets_[stream].push_back(
-                  LoggedRtcpPacket(timestamp, kRtcpSr, std::move(rtcp_packet)));
-            }
-          } else if (header.type() == rtcp::ReceiverReport::kPacketType) {
-            std::unique_ptr<rtcp::ReceiverReport> rtcp_packet(
-                rtc::MakeUnique<rtcp::ReceiverReport>());
-            if (rtcp_packet->Parse(header)) {
-              uint32_t ssrc = rtcp_packet->sender_ssrc();
-              StreamId stream(ssrc, direction);
-              uint64_t timestamp = parsed_log_.GetTimestamp(i);
-              rtcp_packets_[stream].push_back(
-                  LoggedRtcpPacket(timestamp, kRtcpRr, std::move(rtcp_packet)));
-            }
-          } else if (header.type() == rtcp::Remb::kPacketType &&
-                     header.fmt() == rtcp::Remb::kFeedbackMessageType) {
-            std::unique_ptr<rtcp::Remb> rtcp_packet(
-                rtc::MakeUnique<rtcp::Remb>());
-            if (rtcp_packet->Parse(header)) {
-              uint32_t ssrc = rtcp_packet->sender_ssrc();
-              StreamId stream(ssrc, direction);
-              uint64_t timestamp = parsed_log_.GetTimestamp(i);
-              rtcp_packets_[stream].push_back(LoggedRtcpPacket(
-                  timestamp, kRtcpRemb, std::move(rtcp_packet)));
-            }
-          }
-        }
-        break;
-      }
-      case ParsedRtcEventLog::LOG_START: {
-        if (last_log_start) {
-          // A LOG_END event was missing. Use last_timestamp.
-          RTC_DCHECK_GE(last_timestamp, *last_log_start);
-          log_segments_.push_back(
-            std::make_pair(*last_log_start, last_timestamp));
-        }
-        last_log_start = rtc::Optional<uint64_t>(parsed_log_.GetTimestamp(i));
-        break;
-      }
-      case ParsedRtcEventLog::LOG_END: {
-        RTC_DCHECK(last_log_start);
-        log_segments_.push_back(
-            std::make_pair(*last_log_start, parsed_log_.GetTimestamp(i)));
-        last_log_start.reset();
-        break;
-      }
-      case ParsedRtcEventLog::AUDIO_PLAYOUT_EVENT: {
-        uint32_t this_ssrc;
-        parsed_log_.GetAudioPlayout(i, &this_ssrc);
-        audio_playout_events_[this_ssrc].push_back(parsed_log_.GetTimestamp(i));
-        break;
-      }
-      case ParsedRtcEventLog::LOSS_BASED_BWE_UPDATE: {
-        LossBasedBweUpdate bwe_update;
-        bwe_update.timestamp = parsed_log_.GetTimestamp(i);
-        parsed_log_.GetLossBasedBweUpdate(i, &bwe_update.new_bitrate,
-                                          &bwe_update.fraction_loss,
-                                          &bwe_update.expected_packets);
-        bwe_loss_updates_.push_back(bwe_update);
-        break;
-      }
-      case ParsedRtcEventLog::DELAY_BASED_BWE_UPDATE: {
-        bwe_delay_updates_.push_back(parsed_log_.GetDelayBasedBweUpdate(i));
-        break;
-      }
-      case ParsedRtcEventLog::AUDIO_NETWORK_ADAPTATION_EVENT: {
-        AudioNetworkAdaptationEvent ana_event;
-        ana_event.timestamp = parsed_log_.GetTimestamp(i);
-        parsed_log_.GetAudioNetworkAdaptation(i, &ana_event.config);
-        audio_network_adaptation_events_.push_back(ana_event);
-        break;
-      }
-      case ParsedRtcEventLog::BWE_PROBE_CLUSTER_CREATED_EVENT: {
-        bwe_probe_cluster_created_events_.push_back(
-            parsed_log_.GetBweProbeClusterCreated(i));
-        break;
-      }
-      case ParsedRtcEventLog::BWE_PROBE_RESULT_EVENT: {
-        bwe_probe_result_events_.push_back(parsed_log_.GetBweProbeResult(i));
-        break;
-      }
-      case ParsedRtcEventLog::UNKNOWN_EVENT: {
-        break;
-      }
-    }
-  }
-
-  if (last_timestamp < first_timestamp) {
-    // No useful events in the log.
-    first_timestamp = last_timestamp = 0;
-  }
-  begin_time_ = first_timestamp;
-  end_time_ = last_timestamp;
-  call_duration_s_ = static_cast<float>(end_time_ - begin_time_) / 1000000;
-  if (last_log_start) {
-    // The log was missing the last LOG_END event. Fake it.
-    log_segments_.push_back(std::make_pair(*last_log_start, end_time_));
-  }
-}
-
-class BitrateObserver : public CongestionController::Observer,
-                        public RemoteBitrateObserver {
- public:
-  BitrateObserver() : last_bitrate_bps_(0), bitrate_updated_(false) {}
-
-  // TODO(minyue): remove this when old OnNetworkChanged is deprecated. See
-  // https://bugs.chromium.org/p/webrtc/issues/detail?id=6796
-  using CongestionController::Observer::OnNetworkChanged;
-
-  void OnNetworkChanged(uint32_t bitrate_bps,
-                        uint8_t fraction_loss,
-                        int64_t rtt_ms,
-                        int64_t probing_interval_ms) override {
-    last_bitrate_bps_ = bitrate_bps;
-    bitrate_updated_ = true;
-  }
-
-  void OnReceiveBitrateChanged(const std::vector<uint32_t>& ssrcs,
-                               uint32_t bitrate) override {}
-
-  uint32_t last_bitrate_bps() const { return last_bitrate_bps_; }
-  bool GetAndResetBitrateUpdated() {
-    bool bitrate_updated = bitrate_updated_;
-    bitrate_updated_ = false;
-    return bitrate_updated;
-  }
-
- private:
-  uint32_t last_bitrate_bps_;
-  bool bitrate_updated_;
-};
-
-bool EventLogAnalyzer::IsRtxSsrc(StreamId stream_id) const {
-  return rtx_ssrcs_.count(stream_id) == 1;
-}
-
-bool EventLogAnalyzer::IsVideoSsrc(StreamId stream_id) const {
-  return video_ssrcs_.count(stream_id) == 1;
-}
-
-bool EventLogAnalyzer::IsAudioSsrc(StreamId stream_id) const {
-  return audio_ssrcs_.count(stream_id) == 1;
-}
-
-std::string EventLogAnalyzer::GetStreamName(StreamId stream_id) const {
-  std::stringstream name;
-  if (IsAudioSsrc(stream_id)) {
-    name << "Audio ";
-  } else if (IsVideoSsrc(stream_id)) {
-    name << "Video ";
-  } else {
-    name << "Unknown ";
-  }
-  if (IsRtxSsrc(stream_id))
-    name << "RTX ";
-  if (stream_id.GetDirection() == kIncomingPacket) {
-    name << "(In) ";
-  } else {
-    name << "(Out) ";
-  }
-  name << SsrcToString(stream_id.GetSsrc());
-  return name.str();
-}
-
-void EventLogAnalyzer::CreatePacketGraph(PacketDirection desired_direction,
-                                         Plot* plot) {
-  for (auto& kv : rtp_packets_) {
-    StreamId stream_id = kv.first;
-    const std::vector<LoggedRtpPacket>& packet_stream = kv.second;
-    // Filter on direction and SSRC.
-    if (stream_id.GetDirection() != desired_direction ||
-        !MatchingSsrc(stream_id.GetSsrc(), desired_ssrc_)) {
-      continue;
-    }
-
-    TimeSeries time_series(GetStreamName(stream_id), BAR_GRAPH);
-    ProcessPoints<LoggedRtpPacket>(
-        [](const LoggedRtpPacket& packet) -> rtc::Optional<float> {
-          return rtc::Optional<float>(packet.total_length);
-        },
-        packet_stream, begin_time_, &time_series);
-    plot->AppendTimeSeries(std::move(time_series));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Packet size (bytes)", kBottomMargin,
-                          kTopMargin);
-  if (desired_direction == webrtc::PacketDirection::kIncomingPacket) {
-    plot->SetTitle("Incoming RTP packets");
-  } else if (desired_direction == webrtc::PacketDirection::kOutgoingPacket) {
-    plot->SetTitle("Outgoing RTP packets");
-  }
-}
-
-template <typename T>
-void EventLogAnalyzer::CreateAccumulatedPacketsTimeSeries(
-    PacketDirection desired_direction,
-    Plot* plot,
-    const std::map<StreamId, std::vector<T>>& packets,
-    const std::string& label_prefix) {
-  for (auto& kv : packets) {
-    StreamId stream_id = kv.first;
-    const std::vector<T>& packet_stream = kv.second;
-    // Filter on direction and SSRC.
-    if (stream_id.GetDirection() != desired_direction ||
-        !MatchingSsrc(stream_id.GetSsrc(), desired_ssrc_)) {
-      continue;
-    }
-
-    std::string label = label_prefix + " " + GetStreamName(stream_id);
-    TimeSeries time_series(label, LINE_STEP_GRAPH);
-    for (size_t i = 0; i < packet_stream.size(); i++) {
-      float x = static_cast<float>(packet_stream[i].timestamp - begin_time_) /
-                1000000;
-      time_series.points.emplace_back(x, i + 1);
-    }
-
-    plot->AppendTimeSeries(std::move(time_series));
-  }
-}
-
-void EventLogAnalyzer::CreateAccumulatedPacketsGraph(
-    PacketDirection desired_direction,
-    Plot* plot) {
-  CreateAccumulatedPacketsTimeSeries(desired_direction, plot, rtp_packets_,
-                                     "RTP");
-  CreateAccumulatedPacketsTimeSeries(desired_direction, plot, rtcp_packets_,
-                                     "RTCP");
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Received Packets", kBottomMargin, kTopMargin);
-  if (desired_direction == webrtc::PacketDirection::kIncomingPacket) {
-    plot->SetTitle("Accumulated Incoming RTP/RTCP packets");
-  } else if (desired_direction == webrtc::PacketDirection::kOutgoingPacket) {
-    plot->SetTitle("Accumulated Outgoing RTP/RTCP packets");
-  }
-}
-
-// For each SSRC, plot the time between the consecutive playouts.
-void EventLogAnalyzer::CreatePlayoutGraph(Plot* plot) {
-  std::map<uint32_t, TimeSeries> time_series;
-  std::map<uint32_t, uint64_t> last_playout;
-
-  uint32_t ssrc;
-
-  for (size_t i = 0; i < parsed_log_.GetNumberOfEvents(); i++) {
-    ParsedRtcEventLog::EventType event_type = parsed_log_.GetEventType(i);
-    if (event_type == ParsedRtcEventLog::AUDIO_PLAYOUT_EVENT) {
-      parsed_log_.GetAudioPlayout(i, &ssrc);
-      uint64_t timestamp = parsed_log_.GetTimestamp(i);
-      if (MatchingSsrc(ssrc, desired_ssrc_)) {
-        float x = static_cast<float>(timestamp - begin_time_) / 1000000;
-        float y = static_cast<float>(timestamp - last_playout[ssrc]) / 1000;
-        if (time_series[ssrc].points.size() == 0) {
-          // There were no previusly logged playout for this SSRC.
-          // Generate a point, but place it on the x-axis.
-          y = 0;
-        }
-        time_series[ssrc].points.push_back(TimeSeriesPoint(x, y));
-        last_playout[ssrc] = timestamp;
-      }
-    }
-  }
-
-  // Set labels and put in graph.
-  for (auto& kv : time_series) {
-    kv.second.label = SsrcToString(kv.first);
-    kv.second.style = BAR_GRAPH;
-    plot->AppendTimeSeries(std::move(kv.second));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Time since last playout (ms)", kBottomMargin,
-                          kTopMargin);
-  plot->SetTitle("Audio playout");
-}
-
-// For audio SSRCs, plot the audio level.
-void EventLogAnalyzer::CreateAudioLevelGraph(Plot* plot) {
-  std::map<StreamId, TimeSeries> time_series;
-
-  for (auto& kv : rtp_packets_) {
-    StreamId stream_id = kv.first;
-    const std::vector<LoggedRtpPacket>& packet_stream = kv.second;
-    // TODO(ivoc): When audio send/receive configs are stored in the event
-    //             log, a check should be added here to only process audio
-    //             streams. Tracking bug: webrtc:6399
-    for (auto& packet : packet_stream) {
-      if (packet.header.extension.hasAudioLevel) {
-        float x = static_cast<float>(packet.timestamp - begin_time_) / 1000000;
-        // The audio level is stored in -dBov (so e.g. -10 dBov is stored as 10)
-        // Here we convert it to dBov.
-        float y = static_cast<float>(-packet.header.extension.audioLevel);
-        time_series[stream_id].points.emplace_back(TimeSeriesPoint(x, y));
-      }
-    }
-  }
-
-  for (auto& series : time_series) {
-    series.second.label = GetStreamName(series.first);
-    series.second.style = LINE_GRAPH;
-    plot->AppendTimeSeries(std::move(series.second));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetYAxis(-127, 0, "Audio level (dBov)", kBottomMargin,
-                 kTopMargin);
-  plot->SetTitle("Audio level");
-}
-
-// For each SSRC, plot the time between the consecutive playouts.
-void EventLogAnalyzer::CreateSequenceNumberGraph(Plot* plot) {
-  for (auto& kv : rtp_packets_) {
-    StreamId stream_id = kv.first;
-    const std::vector<LoggedRtpPacket>& packet_stream = kv.second;
-    // Filter on direction and SSRC.
-    if (stream_id.GetDirection() != kIncomingPacket ||
-        !MatchingSsrc(stream_id.GetSsrc(), desired_ssrc_)) {
-      continue;
-    }
-
-    TimeSeries time_series(GetStreamName(stream_id), BAR_GRAPH);
-    ProcessPairs<LoggedRtpPacket, float>(
-        [](const LoggedRtpPacket& old_packet,
-           const LoggedRtpPacket& new_packet) {
-          int64_t diff =
-              WrappingDifference(new_packet.header.sequenceNumber,
-                                 old_packet.header.sequenceNumber, 1ul << 16);
-          return rtc::Optional<float>(diff);
-        },
-        packet_stream, begin_time_, &time_series);
-    plot->AppendTimeSeries(std::move(time_series));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Difference since last packet", kBottomMargin,
-                          kTopMargin);
-  plot->SetTitle("Sequence number");
-}
-
-void EventLogAnalyzer::CreateIncomingPacketLossGraph(Plot* plot) {
-  for (auto& kv : rtp_packets_) {
-    StreamId stream_id = kv.first;
-    const std::vector<LoggedRtpPacket>& packet_stream = kv.second;
-    // Filter on direction and SSRC.
-    if (stream_id.GetDirection() != kIncomingPacket ||
-        !MatchingSsrc(stream_id.GetSsrc(), desired_ssrc_) ||
-        packet_stream.size() == 0) {
-      continue;
-    }
-
-    TimeSeries time_series(GetStreamName(stream_id), LINE_DOT_GRAPH);
-    const uint64_t kWindowUs = 1000000;
-    const uint64_t kStep = 1000000;
-    SequenceNumberUnwrapper unwrapper_;
-    SequenceNumberUnwrapper prior_unwrapper_;
-    size_t window_index_begin = 0;
-    size_t window_index_end = 0;
-    int64_t highest_seq_number =
-        unwrapper_.Unwrap(packet_stream[0].header.sequenceNumber) - 1;
-    int64_t highest_prior_seq_number =
-        prior_unwrapper_.Unwrap(packet_stream[0].header.sequenceNumber) - 1;
-
-    for (uint64_t t = begin_time_; t < end_time_ + kStep; t += kStep) {
-      while (window_index_end < packet_stream.size() &&
-             packet_stream[window_index_end].timestamp < t) {
-        int64_t sequence_number = unwrapper_.Unwrap(
-            packet_stream[window_index_end].header.sequenceNumber);
-        highest_seq_number = std::max(highest_seq_number, sequence_number);
-        ++window_index_end;
-      }
-      while (window_index_begin < packet_stream.size() &&
-             packet_stream[window_index_begin].timestamp < t - kWindowUs) {
-        int64_t sequence_number = prior_unwrapper_.Unwrap(
-            packet_stream[window_index_begin].header.sequenceNumber);
-        highest_prior_seq_number =
-            std::max(highest_prior_seq_number, sequence_number);
-        ++window_index_begin;
-      }
-      float x = static_cast<float>(t - begin_time_) / 1000000;
-      int64_t expected_packets = highest_seq_number - highest_prior_seq_number;
-      if (expected_packets > 0) {
-        int64_t received_packets = window_index_end - window_index_begin;
-        int64_t lost_packets = expected_packets - received_packets;
-        float y = static_cast<float>(lost_packets) / expected_packets * 100;
-        time_series.points.emplace_back(x, y);
-      }
-    }
-    plot->AppendTimeSeries(std::move(time_series));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Estimated loss rate (%)", kBottomMargin,
-                          kTopMargin);
-  plot->SetTitle("Estimated incoming loss rate");
-}
-
-void EventLogAnalyzer::CreateDelayChangeGraph(Plot* plot) {
-  for (auto& kv : rtp_packets_) {
-    StreamId stream_id = kv.first;
-    const std::vector<LoggedRtpPacket>& packet_stream = kv.second;
-    // Filter on direction and SSRC.
-    if (stream_id.GetDirection() != kIncomingPacket ||
-        !MatchingSsrc(stream_id.GetSsrc(), desired_ssrc_) ||
-        IsAudioSsrc(stream_id) || !IsVideoSsrc(stream_id) ||
-        IsRtxSsrc(stream_id)) {
-      continue;
-    }
-
-    TimeSeries capture_time_data(GetStreamName(stream_id) + " capture-time",
-                                 BAR_GRAPH);
-    ProcessPairs<LoggedRtpPacket, double>(NetworkDelayDiff_CaptureTime,
-                                          packet_stream, begin_time_,
-                                          &capture_time_data);
-    plot->AppendTimeSeries(std::move(capture_time_data));
-
-    TimeSeries send_time_data(GetStreamName(stream_id) + " abs-send-time",
-                              BAR_GRAPH);
-    ProcessPairs<LoggedRtpPacket, double>(NetworkDelayDiff_AbsSendTime,
-                                          packet_stream, begin_time_,
-                                          &send_time_data);
-    plot->AppendTimeSeries(std::move(send_time_data));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Latency change (ms)", kBottomMargin,
-                          kTopMargin);
-  plot->SetTitle("Network latency change between consecutive packets");
-}
-
-void EventLogAnalyzer::CreateAccumulatedDelayChangeGraph(Plot* plot) {
-  for (auto& kv : rtp_packets_) {
-    StreamId stream_id = kv.first;
-    const std::vector<LoggedRtpPacket>& packet_stream = kv.second;
-    // Filter on direction and SSRC.
-    if (stream_id.GetDirection() != kIncomingPacket ||
-        !MatchingSsrc(stream_id.GetSsrc(), desired_ssrc_) ||
-        IsAudioSsrc(stream_id) || !IsVideoSsrc(stream_id) ||
-        IsRtxSsrc(stream_id)) {
-      continue;
-    }
-
-    TimeSeries capture_time_data(GetStreamName(stream_id) + " capture-time",
-                                 LINE_GRAPH);
-    AccumulatePairs<LoggedRtpPacket, double>(NetworkDelayDiff_CaptureTime,
-                                             packet_stream, begin_time_,
-                                             &capture_time_data);
-    plot->AppendTimeSeries(std::move(capture_time_data));
-
-    TimeSeries send_time_data(GetStreamName(stream_id) + " abs-send-time",
-                              LINE_GRAPH);
-    AccumulatePairs<LoggedRtpPacket, double>(NetworkDelayDiff_AbsSendTime,
-                                             packet_stream, begin_time_,
-                                             &send_time_data);
-    plot->AppendTimeSeries(std::move(send_time_data));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Latency change (ms)", kBottomMargin,
-                          kTopMargin);
-  plot->SetTitle("Accumulated network latency change");
-}
-
-// Plot the fraction of packets lost (as perceived by the loss-based BWE).
-void EventLogAnalyzer::CreateFractionLossGraph(Plot* plot) {
-  TimeSeries time_series("Fraction lost", LINE_DOT_GRAPH);
-  for (auto& bwe_update : bwe_loss_updates_) {
-    float x = static_cast<float>(bwe_update.timestamp - begin_time_) / 1000000;
-    float y = static_cast<float>(bwe_update.fraction_loss) / 255 * 100;
-    time_series.points.emplace_back(x, y);
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 10, "Percent lost packets", kBottomMargin,
-                          kTopMargin);
-  plot->SetTitle("Reported packet loss");
-  plot->AppendTimeSeries(std::move(time_series));
-}
-
-// Plot the total bandwidth used by all RTP streams.
-void EventLogAnalyzer::CreateTotalBitrateGraph(
-    PacketDirection desired_direction,
-    Plot* plot) {
-  struct TimestampSize {
-    TimestampSize(uint64_t t, size_t s) : timestamp(t), size(s) {}
-    uint64_t timestamp;
-    size_t size;
-  };
-  std::vector<TimestampSize> packets;
-
-  PacketDirection direction;
-  size_t total_length;
-
-  // Extract timestamps and sizes for the relevant packets.
-  for (size_t i = 0; i < parsed_log_.GetNumberOfEvents(); i++) {
-    ParsedRtcEventLog::EventType event_type = parsed_log_.GetEventType(i);
-    if (event_type == ParsedRtcEventLog::RTP_EVENT) {
-      parsed_log_.GetRtpHeader(i, &direction, nullptr, nullptr, &total_length);
-      if (direction == desired_direction) {
-        uint64_t timestamp = parsed_log_.GetTimestamp(i);
-        packets.push_back(TimestampSize(timestamp, total_length));
-      }
-    }
-  }
-
-  size_t window_index_begin = 0;
-  size_t window_index_end = 0;
-  size_t bytes_in_window = 0;
-
-  // Calculate a moving average of the bitrate and store in a TimeSeries.
-  TimeSeries bitrate_series("Bitrate", LINE_GRAPH);
-  for (uint64_t time = begin_time_; time < end_time_ + step_; time += step_) {
-    while (window_index_end < packets.size() &&
-           packets[window_index_end].timestamp < time) {
-      bytes_in_window += packets[window_index_end].size;
-      ++window_index_end;
-    }
-    while (window_index_begin < packets.size() &&
-           packets[window_index_begin].timestamp < time - window_duration_) {
-      RTC_DCHECK_LE(packets[window_index_begin].size, bytes_in_window);
-      bytes_in_window -= packets[window_index_begin].size;
-      ++window_index_begin;
-    }
-    float window_duration_in_seconds =
-        static_cast<float>(window_duration_) / 1000000;
-    float x = static_cast<float>(time - begin_time_) / 1000000;
-    float y = bytes_in_window * 8 / window_duration_in_seconds / 1000;
-    bitrate_series.points.emplace_back(x, y);
-  }
-  plot->AppendTimeSeries(std::move(bitrate_series));
-
-  // Overlay the send-side bandwidth estimate over the outgoing bitrate.
-  if (desired_direction == kOutgoingPacket) {
-    TimeSeries loss_series("Loss-based estimate", LINE_STEP_GRAPH);
-    for (auto& loss_update : bwe_loss_updates_) {
-      float x =
-          static_cast<float>(loss_update.timestamp - begin_time_) / 1000000;
-      float y = static_cast<float>(loss_update.new_bitrate) / 1000;
-      loss_series.points.emplace_back(x, y);
-    }
-
-    TimeSeries delay_series("Delay-based estimate", LINE_STEP_GRAPH);
-    for (auto& delay_update : bwe_delay_updates_) {
-      float x =
-          static_cast<float>(delay_update.timestamp - begin_time_) / 1000000;
-      float y = static_cast<float>(delay_update.bitrate_bps) / 1000;
-      delay_series.points.emplace_back(x, y);
-    }
-
-    TimeSeries created_series("Probe cluster created.", DOT_GRAPH);
-    for (auto& cluster : bwe_probe_cluster_created_events_) {
-      float x = static_cast<float>(cluster.timestamp - begin_time_) / 1000000;
-      float y = static_cast<float>(cluster.bitrate_bps) / 1000;
-      created_series.points.emplace_back(x, y);
-    }
-
-    TimeSeries result_series("Probing results.", DOT_GRAPH);
-    for (auto& result : bwe_probe_result_events_) {
-      if (result.bitrate_bps) {
-        float x = static_cast<float>(result.timestamp - begin_time_) / 1000000;
-        float y = static_cast<float>(*result.bitrate_bps) / 1000;
-        result_series.points.emplace_back(x, y);
-      }
-    }
-    plot->AppendTimeSeries(std::move(loss_series));
-    plot->AppendTimeSeries(std::move(delay_series));
-    plot->AppendTimeSeries(std::move(created_series));
-    plot->AppendTimeSeries(std::move(result_series));
-  }
-
-  // Overlay the incoming REMB over the outgoing bitrate
-  // and outgoing REMB over incoming bitrate.
-  PacketDirection remb_direction =
-      desired_direction == kOutgoingPacket ? kIncomingPacket : kOutgoingPacket;
-  TimeSeries remb_series("Remb", LINE_STEP_GRAPH);
-  std::multimap<uint64_t, const LoggedRtcpPacket*> remb_packets;
-  for (const auto& kv : rtcp_packets_) {
-    if (kv.first.GetDirection() == remb_direction) {
-      for (const LoggedRtcpPacket& rtcp_packet : kv.second) {
-        if (rtcp_packet.type == kRtcpRemb) {
-          remb_packets.insert(
-              std::make_pair(rtcp_packet.timestamp, &rtcp_packet));
-        }
-      }
-    }
-  }
-
-  for (const auto& kv : remb_packets) {
-    const LoggedRtcpPacket* const rtcp = kv.second;
-    const rtcp::Remb* const remb = static_cast<rtcp::Remb*>(rtcp->packet.get());
-    float x = static_cast<float>(rtcp->timestamp - begin_time_) / 1000000;
-    float y = static_cast<float>(remb->bitrate_bps()) / 1000;
-    remb_series.points.emplace_back(x, y);
-  }
-  plot->AppendTimeSeriesIfNotEmpty(std::move(remb_series));
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Bitrate (kbps)", kBottomMargin, kTopMargin);
-  if (desired_direction == webrtc::PacketDirection::kIncomingPacket) {
-    plot->SetTitle("Incoming RTP bitrate");
-  } else if (desired_direction == webrtc::PacketDirection::kOutgoingPacket) {
-    plot->SetTitle("Outgoing RTP bitrate");
-  }
-}
-
-// For each SSRC, plot the bandwidth used by that stream.
-void EventLogAnalyzer::CreateStreamBitrateGraph(
-    PacketDirection desired_direction,
-    Plot* plot) {
-  for (auto& kv : rtp_packets_) {
-    StreamId stream_id = kv.first;
-    const std::vector<LoggedRtpPacket>& packet_stream = kv.second;
-    // Filter on direction and SSRC.
-    if (stream_id.GetDirection() != desired_direction ||
-        !MatchingSsrc(stream_id.GetSsrc(), desired_ssrc_)) {
-      continue;
-    }
-
-    TimeSeries time_series(GetStreamName(stream_id), LINE_GRAPH);
-    MovingAverage<LoggedRtpPacket, double>(
-        [](const LoggedRtpPacket& packet) {
-          return rtc::Optional<double>(packet.total_length * 8.0 / 1000.0);
-        },
-        packet_stream, begin_time_, end_time_, window_duration_, step_,
-        &time_series);
-    plot->AppendTimeSeries(std::move(time_series));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Bitrate (kbps)", kBottomMargin, kTopMargin);
-  if (desired_direction == webrtc::PacketDirection::kIncomingPacket) {
-    plot->SetTitle("Incoming bitrate per stream");
-  } else if (desired_direction == webrtc::PacketDirection::kOutgoingPacket) {
-    plot->SetTitle("Outgoing bitrate per stream");
-  }
-}
-
-void EventLogAnalyzer::CreateBweSimulationGraph(Plot* plot) {
-  std::multimap<uint64_t, const LoggedRtpPacket*> outgoing_rtp;
-  std::multimap<uint64_t, const LoggedRtcpPacket*> incoming_rtcp;
-
-  for (const auto& kv : rtp_packets_) {
-    if (kv.first.GetDirection() == PacketDirection::kOutgoingPacket) {
-      for (const LoggedRtpPacket& rtp_packet : kv.second)
-        outgoing_rtp.insert(std::make_pair(rtp_packet.timestamp, &rtp_packet));
-    }
-  }
-
-  for (const auto& kv : rtcp_packets_) {
-    if (kv.first.GetDirection() == PacketDirection::kIncomingPacket) {
-      for (const LoggedRtcpPacket& rtcp_packet : kv.second)
-        incoming_rtcp.insert(
-            std::make_pair(rtcp_packet.timestamp, &rtcp_packet));
-    }
-  }
-
-  SimulatedClock clock(0);
-  BitrateObserver observer;
-  RtcEventLogNullImpl null_event_log;
-  PacketRouter packet_router;
-  CongestionController cc(&clock, &observer, &observer, &null_event_log,
-                          &packet_router);
-  // TODO(holmer): Log the call config and use that here instead.
-  static const uint32_t kDefaultStartBitrateBps = 300000;
-  cc.SetBweBitrates(0, kDefaultStartBitrateBps, -1);
-
-  TimeSeries time_series("Delay-based estimate", LINE_DOT_GRAPH);
-  TimeSeries acked_time_series("Acked bitrate", LINE_DOT_GRAPH);
-
-  auto rtp_iterator = outgoing_rtp.begin();
-  auto rtcp_iterator = incoming_rtcp.begin();
-
-  auto NextRtpTime = [&]() {
-    if (rtp_iterator != outgoing_rtp.end())
-      return static_cast<int64_t>(rtp_iterator->first);
-    return std::numeric_limits<int64_t>::max();
-  };
-
-  auto NextRtcpTime = [&]() {
-    if (rtcp_iterator != incoming_rtcp.end())
-      return static_cast<int64_t>(rtcp_iterator->first);
-    return std::numeric_limits<int64_t>::max();
-  };
-
-  auto NextProcessTime = [&]() {
-    if (rtcp_iterator != incoming_rtcp.end() ||
-        rtp_iterator != outgoing_rtp.end()) {
-      return clock.TimeInMicroseconds() +
-             std::max<int64_t>(cc.TimeUntilNextProcess() * 1000, 0);
-    }
-    return std::numeric_limits<int64_t>::max();
-  };
-
-  RateStatistics acked_bitrate(250, 8000);
-
-  int64_t time_us = std::min(NextRtpTime(), NextRtcpTime());
-  int64_t last_update_us = 0;
-  while (time_us != std::numeric_limits<int64_t>::max()) {
-    clock.AdvanceTimeMicroseconds(time_us - clock.TimeInMicroseconds());
-    if (clock.TimeInMicroseconds() >= NextRtcpTime()) {
-      RTC_DCHECK_EQ(clock.TimeInMicroseconds(), NextRtcpTime());
-      const LoggedRtcpPacket& rtcp = *rtcp_iterator->second;
-      if (rtcp.type == kRtcpTransportFeedback) {
-        cc.OnTransportFeedback(
-            *static_cast<rtcp::TransportFeedback*>(rtcp.packet.get()));
-        std::vector<PacketFeedback> feedback = cc.GetTransportFeedbackVector();
-        SortPacketFeedbackVector(&feedback);
-        rtc::Optional<uint32_t> bitrate_bps;
-        if (!feedback.empty()) {
-          for (const PacketFeedback& packet : feedback)
-            acked_bitrate.Update(packet.payload_size, packet.arrival_time_ms);
-          bitrate_bps = acked_bitrate.Rate(feedback.back().arrival_time_ms);
-        }
-        uint32_t y = 0;
-        if (bitrate_bps)
-          y = *bitrate_bps / 1000;
-        float x = static_cast<float>(clock.TimeInMicroseconds() - begin_time_) /
-                  1000000;
-        acked_time_series.points.emplace_back(x, y);
-      }
-      ++rtcp_iterator;
-    }
-    if (clock.TimeInMicroseconds() >= NextRtpTime()) {
-      RTC_DCHECK_EQ(clock.TimeInMicroseconds(), NextRtpTime());
-      const LoggedRtpPacket& rtp = *rtp_iterator->second;
-      if (rtp.header.extension.hasTransportSequenceNumber) {
-        RTC_DCHECK(rtp.header.extension.hasTransportSequenceNumber);
-        cc.AddPacket(rtp.header.ssrc,
-                     rtp.header.extension.transportSequenceNumber,
-                     rtp.total_length, PacedPacketInfo());
-        rtc::SentPacket sent_packet(
-            rtp.header.extension.transportSequenceNumber, rtp.timestamp / 1000);
-        cc.OnSentPacket(sent_packet);
-      }
-      ++rtp_iterator;
-    }
-    if (clock.TimeInMicroseconds() >= NextProcessTime()) {
-      RTC_DCHECK_EQ(clock.TimeInMicroseconds(), NextProcessTime());
-      cc.Process();
-    }
-    if (observer.GetAndResetBitrateUpdated() ||
-        time_us - last_update_us >= 1e6) {
-      uint32_t y = observer.last_bitrate_bps() / 1000;
-      float x = static_cast<float>(clock.TimeInMicroseconds() - begin_time_) /
-                1000000;
-      time_series.points.emplace_back(x, y);
-      last_update_us = time_us;
-    }
-    time_us = std::min({NextRtpTime(), NextRtcpTime(), NextProcessTime()});
-  }
-  // Add the data set to the plot.
-  plot->AppendTimeSeries(std::move(time_series));
-  plot->AppendTimeSeries(std::move(acked_time_series));
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 10, "Bitrate (kbps)", kBottomMargin, kTopMargin);
-  plot->SetTitle("Simulated BWE behavior");
-}
-
-void EventLogAnalyzer::CreateNetworkDelayFeedbackGraph(Plot* plot) {
-  std::multimap<uint64_t, const LoggedRtpPacket*> outgoing_rtp;
-  std::multimap<uint64_t, const LoggedRtcpPacket*> incoming_rtcp;
-
-  for (const auto& kv : rtp_packets_) {
-    if (kv.first.GetDirection() == PacketDirection::kOutgoingPacket) {
-      for (const LoggedRtpPacket& rtp_packet : kv.second)
-        outgoing_rtp.insert(std::make_pair(rtp_packet.timestamp, &rtp_packet));
-    }
-  }
-
-  for (const auto& kv : rtcp_packets_) {
-    if (kv.first.GetDirection() == PacketDirection::kIncomingPacket) {
-      for (const LoggedRtcpPacket& rtcp_packet : kv.second)
-        incoming_rtcp.insert(
-            std::make_pair(rtcp_packet.timestamp, &rtcp_packet));
-    }
-  }
-
-  SimulatedClock clock(0);
-  TransportFeedbackAdapter feedback_adapter(&clock);
-
-  TimeSeries time_series("Network Delay Change", LINE_DOT_GRAPH);
-  int64_t estimated_base_delay_ms = std::numeric_limits<int64_t>::max();
-
-  auto rtp_iterator = outgoing_rtp.begin();
-  auto rtcp_iterator = incoming_rtcp.begin();
-
-  auto NextRtpTime = [&]() {
-    if (rtp_iterator != outgoing_rtp.end())
-      return static_cast<int64_t>(rtp_iterator->first);
-    return std::numeric_limits<int64_t>::max();
-  };
-
-  auto NextRtcpTime = [&]() {
-    if (rtcp_iterator != incoming_rtcp.end())
-      return static_cast<int64_t>(rtcp_iterator->first);
-    return std::numeric_limits<int64_t>::max();
-  };
-
-  int64_t time_us = std::min(NextRtpTime(), NextRtcpTime());
-  while (time_us != std::numeric_limits<int64_t>::max()) {
-    clock.AdvanceTimeMicroseconds(time_us - clock.TimeInMicroseconds());
-    if (clock.TimeInMicroseconds() >= NextRtcpTime()) {
-      RTC_DCHECK_EQ(clock.TimeInMicroseconds(), NextRtcpTime());
-      const LoggedRtcpPacket& rtcp = *rtcp_iterator->second;
-      if (rtcp.type == kRtcpTransportFeedback) {
-        feedback_adapter.OnTransportFeedback(
-            *static_cast<rtcp::TransportFeedback*>(rtcp.packet.get()));
-        std::vector<PacketFeedback> feedback =
-            feedback_adapter.GetTransportFeedbackVector();
-        SortPacketFeedbackVector(&feedback);
-        for (const PacketFeedback& packet : feedback) {
-          int64_t y = packet.arrival_time_ms - packet.send_time_ms;
-          float x =
-              static_cast<float>(clock.TimeInMicroseconds() - begin_time_) /
-              1000000;
-          estimated_base_delay_ms = std::min(y, estimated_base_delay_ms);
-          time_series.points.emplace_back(x, y);
-        }
-      }
-      ++rtcp_iterator;
-    }
-    if (clock.TimeInMicroseconds() >= NextRtpTime()) {
-      RTC_DCHECK_EQ(clock.TimeInMicroseconds(), NextRtpTime());
-      const LoggedRtpPacket& rtp = *rtp_iterator->second;
-      if (rtp.header.extension.hasTransportSequenceNumber) {
-        RTC_DCHECK(rtp.header.extension.hasTransportSequenceNumber);
-        feedback_adapter.AddPacket(rtp.header.ssrc,
-                                   rtp.header.extension.transportSequenceNumber,
-                                   rtp.total_length, PacedPacketInfo());
-        feedback_adapter.OnSentPacket(
-            rtp.header.extension.transportSequenceNumber, rtp.timestamp / 1000);
-      }
-      ++rtp_iterator;
-    }
-    time_us = std::min(NextRtpTime(), NextRtcpTime());
-  }
-  // We assume that the base network delay (w/o queues) is the min delay
-  // observed during the call.
-  for (TimeSeriesPoint& point : time_series.points)
-    point.y -= estimated_base_delay_ms;
-  // Add the data set to the plot.
-  plot->AppendTimeSeries(std::move(time_series));
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 10, "Delay (ms)", kBottomMargin, kTopMargin);
-  plot->SetTitle("Network Delay Change.");
-}
-
-std::vector<std::pair<int64_t, int64_t>> EventLogAnalyzer::GetFrameTimestamps()
-    const {
-  std::vector<std::pair<int64_t, int64_t>> timestamps;
-  size_t largest_stream_size = 0;
-  const std::vector<LoggedRtpPacket>* largest_video_stream = nullptr;
-  // Find the incoming video stream with the most number of packets that is
-  // not rtx.
-  for (const auto& kv : rtp_packets_) {
-    if (kv.first.GetDirection() == kIncomingPacket &&
-        video_ssrcs_.find(kv.first) != video_ssrcs_.end() &&
-        rtx_ssrcs_.find(kv.first) == rtx_ssrcs_.end() &&
-        kv.second.size() > largest_stream_size) {
-      largest_stream_size = kv.second.size();
-      largest_video_stream = &kv.second;
-    }
-  }
-  if (largest_video_stream == nullptr) {
-    for (auto& packet : *largest_video_stream) {
-      if (packet.header.markerBit) {
-        int64_t capture_ms = packet.header.timestamp / 90.0;
-        int64_t arrival_ms = packet.timestamp / 1000.0;
-        timestamps.push_back(std::make_pair(capture_ms, arrival_ms));
-      }
-    }
-  }
-  return timestamps;
-}
-
-void EventLogAnalyzer::CreateTimestampGraph(Plot* plot) {
-  for (const auto& kv : rtp_packets_) {
-    const std::vector<LoggedRtpPacket>& rtp_packets = kv.second;
-    StreamId stream_id = kv.first;
-
-    {
-      TimeSeries timestamp_data(GetStreamName(stream_id) + " capture-time",
-                                LINE_DOT_GRAPH);
-      for (LoggedRtpPacket packet : rtp_packets) {
-        float x = static_cast<float>(packet.timestamp - begin_time_) / 1000000;
-        float y = packet.header.timestamp;
-        timestamp_data.points.emplace_back(x, y);
-      }
-      plot->AppendTimeSeries(std::move(timestamp_data));
-    }
-
-    {
-      auto kv = rtcp_packets_.find(stream_id);
-      if (kv != rtcp_packets_.end()) {
-        const auto& packets = kv->second;
-        TimeSeries timestamp_data(
-            GetStreamName(stream_id) + " rtcp capture-time", LINE_DOT_GRAPH);
-        for (const LoggedRtcpPacket& rtcp : packets) {
-          if (rtcp.type != kRtcpSr)
-            continue;
-          rtcp::SenderReport* sr;
-          sr = static_cast<rtcp::SenderReport*>(rtcp.packet.get());
-          float x = static_cast<float>(rtcp.timestamp - begin_time_) / 1000000;
-          float y = sr->rtp_timestamp();
-          timestamp_data.points.emplace_back(x, y);
-        }
-        plot->AppendTimeSeries(std::move(timestamp_data));
-      }
-    }
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Timestamp (90khz)", kBottomMargin, kTopMargin);
-  plot->SetTitle("Timestamps");
-}
-
-void EventLogAnalyzer::CreateAudioEncoderTargetBitrateGraph(Plot* plot) {
-  TimeSeries time_series("Audio encoder target bitrate", LINE_DOT_GRAPH);
-  ProcessPoints<AudioNetworkAdaptationEvent>(
-      [](const AudioNetworkAdaptationEvent& ana_event) -> rtc::Optional<float> {
-        if (ana_event.config.bitrate_bps)
-          return rtc::Optional<float>(
-              static_cast<float>(*ana_event.config.bitrate_bps));
-        return rtc::Optional<float>();
-      },
-      audio_network_adaptation_events_, begin_time_, &time_series);
-  plot->AppendTimeSeries(std::move(time_series));
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Bitrate (bps)", kBottomMargin, kTopMargin);
-  plot->SetTitle("Reported audio encoder target bitrate");
-}
-
-void EventLogAnalyzer::CreateAudioEncoderFrameLengthGraph(Plot* plot) {
-  TimeSeries time_series("Audio encoder frame length", LINE_DOT_GRAPH);
-  ProcessPoints<AudioNetworkAdaptationEvent>(
-      [](const AudioNetworkAdaptationEvent& ana_event) {
-        if (ana_event.config.frame_length_ms)
-          return rtc::Optional<float>(
-              static_cast<float>(*ana_event.config.frame_length_ms));
-        return rtc::Optional<float>();
-      },
-      audio_network_adaptation_events_, begin_time_, &time_series);
-  plot->AppendTimeSeries(std::move(time_series));
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Frame length (ms)", kBottomMargin, kTopMargin);
-  plot->SetTitle("Reported audio encoder frame length");
-}
-
-void EventLogAnalyzer::CreateAudioEncoderUplinkPacketLossFractionGraph(
-    Plot* plot) {
-  TimeSeries time_series("Audio encoder uplink packet loss fraction",
-                         LINE_DOT_GRAPH);
-  ProcessPoints<AudioNetworkAdaptationEvent>(
-      [](const AudioNetworkAdaptationEvent& ana_event) {
-        if (ana_event.config.uplink_packet_loss_fraction)
-          return rtc::Optional<float>(static_cast<float>(
-              *ana_event.config.uplink_packet_loss_fraction));
-        return rtc::Optional<float>();
-      },
-      audio_network_adaptation_events_, begin_time_, &time_series);
-  plot->AppendTimeSeries(std::move(time_series));
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 10, "Percent lost packets", kBottomMargin,
-                          kTopMargin);
-  plot->SetTitle("Reported audio encoder lost packets");
-}
-
-void EventLogAnalyzer::CreateAudioEncoderEnableFecGraph(Plot* plot) {
-  TimeSeries time_series("Audio encoder FEC", LINE_DOT_GRAPH);
-  ProcessPoints<AudioNetworkAdaptationEvent>(
-      [](const AudioNetworkAdaptationEvent& ana_event) {
-        if (ana_event.config.enable_fec)
-          return rtc::Optional<float>(
-              static_cast<float>(*ana_event.config.enable_fec));
-        return rtc::Optional<float>();
-      },
-      audio_network_adaptation_events_, begin_time_, &time_series);
-  plot->AppendTimeSeries(std::move(time_series));
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "FEC (false/true)", kBottomMargin, kTopMargin);
-  plot->SetTitle("Reported audio encoder FEC");
-}
-
-void EventLogAnalyzer::CreateAudioEncoderEnableDtxGraph(Plot* plot) {
-  TimeSeries time_series("Audio encoder DTX", LINE_DOT_GRAPH);
-  ProcessPoints<AudioNetworkAdaptationEvent>(
-      [](const AudioNetworkAdaptationEvent& ana_event) {
-        if (ana_event.config.enable_dtx)
-          return rtc::Optional<float>(
-              static_cast<float>(*ana_event.config.enable_dtx));
-        return rtc::Optional<float>();
-      },
-      audio_network_adaptation_events_, begin_time_, &time_series);
-  plot->AppendTimeSeries(std::move(time_series));
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "DTX (false/true)", kBottomMargin, kTopMargin);
-  plot->SetTitle("Reported audio encoder DTX");
-}
-
-void EventLogAnalyzer::CreateAudioEncoderNumChannelsGraph(Plot* plot) {
-  TimeSeries time_series("Audio encoder number of channels", LINE_DOT_GRAPH);
-  ProcessPoints<AudioNetworkAdaptationEvent>(
-      [](const AudioNetworkAdaptationEvent& ana_event) {
-        if (ana_event.config.num_channels)
-          return rtc::Optional<float>(
-              static_cast<float>(*ana_event.config.num_channels));
-        return rtc::Optional<float>();
-      },
-      audio_network_adaptation_events_, begin_time_, &time_series);
-  plot->AppendTimeSeries(std::move(time_series));
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetSuggestedYAxis(0, 1, "Number of channels (1 (mono)/2 (stereo))",
-                          kBottomMargin, kTopMargin);
-  plot->SetTitle("Reported audio encoder number of channels");
-}
-
-class NetEqStreamInput : public test::NetEqInput {
- public:
-  // Does not take any ownership, and all pointers must refer to valid objects
-  // that outlive the one constructed.
-  NetEqStreamInput(const std::vector<LoggedRtpPacket>* packet_stream,
-                   const std::vector<uint64_t>* output_events_us,
-                   rtc::Optional<uint64_t> end_time_us)
-      : packet_stream_(*packet_stream),
-        packet_stream_it_(packet_stream_.begin()),
-        output_events_us_it_(output_events_us->begin()),
-        output_events_us_end_(output_events_us->end()),
-        end_time_us_(end_time_us) {
-    RTC_DCHECK(packet_stream);
-    RTC_DCHECK(output_events_us);
-  }
-
-  rtc::Optional<int64_t> NextPacketTime() const override {
-    if (packet_stream_it_ == packet_stream_.end()) {
-      return rtc::Optional<int64_t>();
-    }
-    if (end_time_us_ && packet_stream_it_->timestamp > *end_time_us_) {
-      return rtc::Optional<int64_t>();
-    }
-    // Convert from us to ms.
-    return rtc::Optional<int64_t>(packet_stream_it_->timestamp / 1000);
-  }
-
-  rtc::Optional<int64_t> NextOutputEventTime() const override {
-    if (output_events_us_it_ == output_events_us_end_) {
-      return rtc::Optional<int64_t>();
-    }
-    if (end_time_us_ && *output_events_us_it_ > *end_time_us_) {
-      return rtc::Optional<int64_t>();
-    }
-    // Convert from us to ms.
-    return rtc::Optional<int64_t>(
-        rtc::checked_cast<int64_t>(*output_events_us_it_ / 1000));
-  }
-
-  std::unique_ptr<PacketData> PopPacket() override {
-    if (packet_stream_it_ == packet_stream_.end()) {
-      return std::unique_ptr<PacketData>();
-    }
-    std::unique_ptr<PacketData> packet_data(new PacketData());
-    packet_data->header = packet_stream_it_->header;
-    // Convert from us to ms.
-    packet_data->time_ms = packet_stream_it_->timestamp / 1000.0;
-
-    // This is a header-only "dummy" packet. Set the payload to all zeros, with
-    // length according to the virtual length.
-    packet_data->payload.SetSize(packet_stream_it_->total_length);
-    std::fill_n(packet_data->payload.data(), packet_data->payload.size(), 0);
-
-    ++packet_stream_it_;
-    return packet_data;
-  }
-
-  void AdvanceOutputEvent() override {
-    if (output_events_us_it_ != output_events_us_end_) {
-      ++output_events_us_it_;
-    }
-  }
-
-  bool ended() const override { return !NextEventTime(); }
-
-  rtc::Optional<RTPHeader> NextHeader() const override {
-    if (packet_stream_it_ == packet_stream_.end()) {
-      return rtc::Optional<RTPHeader>();
-    }
-    return rtc::Optional<RTPHeader>(packet_stream_it_->header);
-  }
-
- private:
-  const std::vector<LoggedRtpPacket>& packet_stream_;
-  std::vector<LoggedRtpPacket>::const_iterator packet_stream_it_;
-  std::vector<uint64_t>::const_iterator output_events_us_it_;
-  const std::vector<uint64_t>::const_iterator output_events_us_end_;
-  const rtc::Optional<uint64_t> end_time_us_;
-};
-
-namespace {
-// Creates a NetEq test object and all necessary input and output helpers. Runs
-// the test and returns the NetEqDelayAnalyzer object that was used to
-// instrument the test.
-std::unique_ptr<test::NetEqDelayAnalyzer> CreateNetEqTestAndRun(
-    const std::vector<LoggedRtpPacket>* packet_stream,
-    const std::vector<uint64_t>* output_events_us,
-    rtc::Optional<uint64_t> end_time_us,
-    const std::string& replacement_file_name,
-    int file_sample_rate_hz) {
-  std::unique_ptr<test::NetEqInput> input(
-      new NetEqStreamInput(packet_stream, output_events_us, end_time_us));
-
-  constexpr int kReplacementPt = 127;
-  std::set<uint8_t> cn_types;
-  std::set<uint8_t> forbidden_types;
-  input.reset(new test::NetEqReplacementInput(std::move(input), kReplacementPt,
-                                              cn_types, forbidden_types));
-
-  NetEq::Config config;
-  config.max_packets_in_buffer = 200;
-  config.enable_fast_accelerate = true;
-
-  std::unique_ptr<test::VoidAudioSink> output(new test::VoidAudioSink());
-
-  test::NetEqTest::DecoderMap codecs;
-
-  // Create a "replacement decoder" that produces the decoded audio by reading
-  // from a file rather than from the encoded payloads.
-  std::unique_ptr<test::ResampleInputAudioFile> replacement_file(
-      new test::ResampleInputAudioFile(replacement_file_name,
-                                       file_sample_rate_hz));
-  replacement_file->set_output_rate_hz(48000);
-  std::unique_ptr<AudioDecoder> replacement_decoder(
-      new test::FakeDecodeFromFile(std::move(replacement_file), 48000, false));
-  test::NetEqTest::ExtDecoderMap ext_codecs;
-  ext_codecs[kReplacementPt] = {replacement_decoder.get(),
-                                NetEqDecoder::kDecoderArbitrary,
-                                "replacement codec"};
-
-  std::unique_ptr<test::NetEqDelayAnalyzer> delay_cb(
-      new test::NetEqDelayAnalyzer);
-  test::DefaultNetEqTestErrorCallback error_cb;
-  test::NetEqTest::Callbacks callbacks;
-  callbacks.error_callback = &error_cb;
-  callbacks.post_insert_packet = delay_cb.get();
-  callbacks.get_audio_callback = delay_cb.get();
-
-  test::NetEqTest test(config, codecs, ext_codecs, std::move(input),
-                       std::move(output), callbacks);
-  test.Run();
-  return delay_cb;
-}
-}  // namespace
-
-// Plots the jitter buffer delay profile. This will plot only for the first
-// incoming audio SSRC. If the stream contains more than one incoming audio
-// SSRC, all but the first will be ignored.
-void EventLogAnalyzer::CreateAudioJitterBufferGraph(
-    const std::string& replacement_file_name,
-    int file_sample_rate_hz,
-    Plot* plot) {
-  const auto& incoming_audio_kv = std::find_if(
-      rtp_packets_.begin(), rtp_packets_.end(),
-      [this](std::pair<StreamId, std::vector<LoggedRtpPacket>> kv) {
-        return kv.first.GetDirection() == kIncomingPacket &&
-               this->IsAudioSsrc(kv.first);
-      });
-  if (incoming_audio_kv == rtp_packets_.end()) {
-    // No incoming audio stream found.
-    return;
-  }
-
-  const uint32_t ssrc = incoming_audio_kv->first.GetSsrc();
-
-  std::map<uint32_t, std::vector<uint64_t>>::const_iterator output_events_it =
-      audio_playout_events_.find(ssrc);
-  if (output_events_it == audio_playout_events_.end()) {
-    // Could not find output events with SSRC matching the input audio stream.
-    // Using the first available stream of output events.
-    output_events_it = audio_playout_events_.cbegin();
-  }
-
-  rtc::Optional<uint64_t> end_time_us =
-      log_segments_.empty()
-          ? rtc::Optional<uint64_t>()
-          : rtc::Optional<uint64_t>(log_segments_.front().second);
-
-  auto delay_cb = CreateNetEqTestAndRun(
-      &incoming_audio_kv->second, &output_events_it->second, end_time_us,
-      replacement_file_name, file_sample_rate_hz);
-
-  std::vector<float> send_times_s;
-  std::vector<float> arrival_delay_ms;
-  std::vector<float> corrected_arrival_delay_ms;
-  std::vector<rtc::Optional<float>> playout_delay_ms;
-  std::vector<rtc::Optional<float>> target_delay_ms;
-  delay_cb->CreateGraphs(&send_times_s, &arrival_delay_ms,
-                         &corrected_arrival_delay_ms, &playout_delay_ms,
-                         &target_delay_ms);
-  RTC_DCHECK_EQ(send_times_s.size(), arrival_delay_ms.size());
-  RTC_DCHECK_EQ(send_times_s.size(), corrected_arrival_delay_ms.size());
-  RTC_DCHECK_EQ(send_times_s.size(), playout_delay_ms.size());
-  RTC_DCHECK_EQ(send_times_s.size(), target_delay_ms.size());
-
-  std::map<StreamId, TimeSeries> time_series_packet_arrival;
-  std::map<StreamId, TimeSeries> time_series_relative_packet_arrival;
-  std::map<StreamId, TimeSeries> time_series_play_time;
-  std::map<StreamId, TimeSeries> time_series_target_time;
-  float min_y_axis = 0.f;
-  float max_y_axis = 0.f;
-  const StreamId stream_id = incoming_audio_kv->first;
-  for (size_t i = 0; i < send_times_s.size(); ++i) {
-    time_series_packet_arrival[stream_id].points.emplace_back(
-        TimeSeriesPoint(send_times_s[i], arrival_delay_ms[i]));
-    time_series_relative_packet_arrival[stream_id].points.emplace_back(
-        TimeSeriesPoint(send_times_s[i], corrected_arrival_delay_ms[i]));
-    min_y_axis = std::min(min_y_axis, corrected_arrival_delay_ms[i]);
-    max_y_axis = std::max(max_y_axis, corrected_arrival_delay_ms[i]);
-    if (playout_delay_ms[i]) {
-      time_series_play_time[stream_id].points.emplace_back(
-          TimeSeriesPoint(send_times_s[i], *playout_delay_ms[i]));
-      min_y_axis = std::min(min_y_axis, *playout_delay_ms[i]);
-      max_y_axis = std::max(max_y_axis, *playout_delay_ms[i]);
-    }
-    if (target_delay_ms[i]) {
-      time_series_target_time[stream_id].points.emplace_back(
-          TimeSeriesPoint(send_times_s[i], *target_delay_ms[i]));
-      min_y_axis = std::min(min_y_axis, *target_delay_ms[i]);
-      max_y_axis = std::max(max_y_axis, *target_delay_ms[i]);
-    }
-  }
-
-  // This code is adapted for a single stream. The creation of the streams above
-  // guarantee that no more than one steam is included. If multiple streams are
-  // to be plotted, they should likely be given distinct labels below.
-  RTC_DCHECK_EQ(time_series_relative_packet_arrival.size(), 1);
-  for (auto& series : time_series_relative_packet_arrival) {
-    series.second.label = "Relative packet arrival delay";
-    series.second.style = LINE_GRAPH;
-    plot->AppendTimeSeries(std::move(series.second));
-  }
-  RTC_DCHECK_EQ(time_series_play_time.size(), 1);
-  for (auto& series : time_series_play_time) {
-    series.second.label = "Playout delay";
-    series.second.style = LINE_GRAPH;
-    plot->AppendTimeSeries(std::move(series.second));
-  }
-  RTC_DCHECK_EQ(time_series_target_time.size(), 1);
-  for (auto& series : time_series_target_time) {
-    series.second.label = "Target delay";
-    series.second.style = LINE_DOT_GRAPH;
-    plot->AppendTimeSeries(std::move(series.second));
-  }
-
-  plot->SetXAxis(0, call_duration_s_, "Time (s)", kLeftMargin, kRightMargin);
-  plot->SetYAxis(min_y_axis, max_y_axis, "Relative delay (ms)", kBottomMargin,
-                 kTopMargin);
-  plot->SetTitle("NetEq timing");
-}
-}  // namespace plotting
-}  // namespace webrtc