diff --git a/api/BUILD.gn b/api/BUILD.gn
index 571b89aacb..1b2250436f 100644
--- a/api/BUILD.gn
+++ b/api/BUILD.gn
@@ -377,6 +377,7 @@ rtc_source_set("peer_connection_quality_test_fixture_api") {
     ":rtp_parameters",
     ":simulated_network_api",
     ":stats_observer_interface",
+    ":track_id_stream_label_map",
     ":video_quality_analyzer_api",
     "../media:rtc_media_base",
     "../rtc_base:deprecation",
diff --git a/api/test/peerconnection_quality_test_fixture.h b/api/test/peerconnection_quality_test_fixture.h
index 4cdca81350..57d77c5dc8 100644
--- a/api/test/peerconnection_quality_test_fixture.h
+++ b/api/test/peerconnection_quality_test_fixture.h
@@ -32,6 +32,7 @@
 #include "api/test/frame_generator_interface.h"
 #include "api/test/simulated_network.h"
 #include "api/test/stats_observer_interface.h"
+#include "api/test/track_id_stream_label_map.h"
 #include "api/test/video_quality_analyzer_interface.h"
 #include "api/transport/network_control.h"
 #include "api/units/time_delta.h"
@@ -411,7 +412,19 @@ class PeerConnectionE2EQualityTestFixture {
 
     // Invoked by framework after peer connection factory and peer connection
     // itself will be created but before offer/answer exchange will be started.
-    virtual void Start(absl::string_view test_case_name) = 0;
+    // |test_case_name| is name of test case, that should be used to report all
+    // metrics.
+    // |reporter_helper| is a pointer to a class that will allow track_id to
+    // stream_id matching. The caller is responsible for ensuring the
+    // TrackIdStreamLabelMap will be valid from Start() to
+    // StopAndReportResults().
+    virtual void Start(absl::string_view test_case_name,
+                       const TrackIdStreamLabelMap* reporter_helper) = 0;
+    // This method has been added for backwards compatibility with upstream
+    // project.
+    void Start(absl::string_view test_case_name) {
+      Start(test_case_name, nullptr);
+    }
 
     // Invoked by framework after call is ended and peer connection factory and
     // peer connection are destroyed.
diff --git a/test/pc/e2e/BUILD.gn b/test/pc/e2e/BUILD.gn
index fea59bcb87..a893f4c21b 100644
--- a/test/pc/e2e/BUILD.gn
+++ b/test/pc/e2e/BUILD.gn
@@ -593,6 +593,7 @@ if (!build_with_chromium) {
       "../..:perf_test",
       "../../../api:peer_connection_quality_test_fixture_api",
       "../../../api:rtc_stats_api",
+      "../../../api:track_id_stream_label_map",
       "../../../api/units:data_rate",
       "../../../api/units:data_size",
       "../../../api/units:time_delta",
@@ -646,6 +647,7 @@ if (!build_with_chromium) {
       "../../../api:network_emulation_manager_api",
       "../../../api:peer_connection_quality_test_fixture_api",
       "../../../api:rtc_stats_api",
+      "../../../api:track_id_stream_label_map",
       "../../../api/units:data_size",
       "../../../rtc_base:criticalsection",
       "../../../rtc_base:rtc_event",
diff --git a/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.cc b/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.cc
index baf973f277..de3bcaaf4f 100644
--- a/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.cc
+++ b/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.cc
@@ -19,7 +19,9 @@
 namespace webrtc {
 namespace webrtc_pc_e2e {
 
-void VideoQualityMetricsReporter::Start(absl::string_view test_case_name) {
+void VideoQualityMetricsReporter::Start(
+    absl::string_view test_case_name,
+    const TrackIdStreamLabelMap* /*reporter_helper*/) {
   test_case_name_ = std::string(test_case_name);
   start_time_ = Now();
 }
diff --git a/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.h b/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.h
index a6ac9b4fa1..4a45116ae9 100644
--- a/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.h
+++ b/test/pc/e2e/analyzer/video/video_quality_metrics_reporter.h
@@ -15,6 +15,7 @@
 #include <string>
 
 #include "api/test/peerconnection_quality_test_fixture.h"
+#include "api/test/track_id_stream_label_map.h"
 #include "api/units/data_size.h"
 #include "api/units/timestamp.h"
 #include "rtc_base/critical_section.h"
@@ -36,7 +37,8 @@ class VideoQualityMetricsReporter
   VideoQualityMetricsReporter(Clock* const clock) : clock_(clock) {}
   ~VideoQualityMetricsReporter() override = default;
 
-  void Start(absl::string_view test_case_name) override;
+  void Start(absl::string_view test_case_name,
+             const TrackIdStreamLabelMap* reporter_helper) override;
   void OnStatsReports(
       absl::string_view pc_label,
       const rtc::scoped_refptr<const RTCStatsReport>& report) override;
diff --git a/test/pc/e2e/network_quality_metrics_reporter.cc b/test/pc/e2e/network_quality_metrics_reporter.cc
index 3b232fdc71..b81ece2b71 100644
--- a/test/pc/e2e/network_quality_metrics_reporter.cc
+++ b/test/pc/e2e/network_quality_metrics_reporter.cc
@@ -29,7 +29,9 @@ constexpr int kStatsWaitTimeoutMs = 1000;
 constexpr char kUseStandardBytesStats[] = "WebRTC-UseStandardBytesStats";
 }
 
-void NetworkQualityMetricsReporter::Start(absl::string_view test_case_name) {
+void NetworkQualityMetricsReporter::Start(
+    absl::string_view test_case_name,
+    const TrackIdStreamLabelMap* /*reporter_helper*/) {
   test_case_name_ = std::string(test_case_name);
   // Check that network stats are clean before test execution.
   EmulatedNetworkStats alice_stats = PopulateStats(alice_network_);
diff --git a/test/pc/e2e/network_quality_metrics_reporter.h b/test/pc/e2e/network_quality_metrics_reporter.h
index 932e03140b..5e61f71bd2 100644
--- a/test/pc/e2e/network_quality_metrics_reporter.h
+++ b/test/pc/e2e/network_quality_metrics_reporter.h
@@ -15,6 +15,7 @@
 
 #include "api/test/network_emulation_manager.h"
 #include "api/test/peerconnection_quality_test_fixture.h"
+#include "api/test/track_id_stream_label_map.h"
 #include "api/units/data_size.h"
 #include "rtc_base/critical_section.h"
 
@@ -30,7 +31,8 @@ class NetworkQualityMetricsReporter
   ~NetworkQualityMetricsReporter() override = default;
 
   // Network stats must be empty when this method will be invoked.
-  void Start(absl::string_view test_case_name) override;
+  void Start(absl::string_view test_case_name,
+             const TrackIdStreamLabelMap* reporter_helper) override;
   void OnStatsReports(
       absl::string_view pc_label,
       const rtc::scoped_refptr<const RTCStatsReport>& report) override;
diff --git a/test/pc/e2e/peer_connection_quality_test.cc b/test/pc/e2e/peer_connection_quality_test.cc
index a23d2248f3..2109ff5936 100644
--- a/test/pc/e2e/peer_connection_quality_test.cc
+++ b/test/pc/e2e/peer_connection_quality_test.cc
@@ -259,7 +259,7 @@ void PeerConnectionE2EQualityTest::Run(RunParams run_params) {
       video_analyzer_threads);
   audio_quality_analyzer_->Start(test_case_name_, &analyzer_helper_);
   for (auto& reporter : quality_metrics_reporters_) {
-    reporter->Start(test_case_name_);
+    reporter->Start(test_case_name_, &analyzer_helper_);
   }
 
   // Start RTCEventLog recording if requested.