diff --git a/api/test/peerconnection_quality_test_fixture.cc b/api/test/peerconnection_quality_test_fixture.cc
index 5d15ba327e..9c85dbf5b8 100644
--- a/api/test/peerconnection_quality_test_fixture.cc
+++ b/api/test/peerconnection_quality_test_fixture.cc
@@ -175,6 +175,15 @@ absl::optional<std::string> PeerConnectionE2EQualityTestFixture::
   return GetOutputDumpFileName(stream_label, receiver) + ".frame_ids.txt";
 }
 
+std::string PeerConnectionE2EQualityTestFixture::VideoDumpOptions::ToString()
+    const {
+  rtc::StringBuilder out;
+  out << "{ output_directory_=" << output_directory_
+      << ", sampling_modulo_=" << sampling_modulo_
+      << ", export_frame_ids_=" << export_frame_ids_ << " }";
+  return out.Release();
+}
+
 PeerConnectionE2EQualityTestFixture::VideoConfig::VideoConfig(
     const VideoResolution& resolution)
     : width(resolution.width()),
diff --git a/api/test/peerconnection_quality_test_fixture.h b/api/test/peerconnection_quality_test_fixture.h
index ca1c2882a1..b5d3f3ce20 100644
--- a/api/test/peerconnection_quality_test_fixture.h
+++ b/api/test/peerconnection_quality_test_fixture.h
@@ -262,6 +262,8 @@ class PeerConnectionE2EQualityTestFixture {
         absl::string_view stream_label,
         absl::string_view receiver) const;
 
+    std::string ToString() const;
+
    private:
     std::string output_directory_;
     int sampling_modulo_ = 1;