1 files changed, 68 insertions, 0 deletions
diff --git a/third_party/libwebrtc/test/pc/e2e/cross_media_metrics_reporter.h b/third_party/libwebrtc/test/pc/e2e/cross_media_metrics_reporter.h
new file mode 100644
index 0000000000..2d51ebb20f
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+++ b/third_party/libwebrtc/test/pc/e2e/cross_media_metrics_reporter.h
@@ -0,0 +1,68 @@
+/*
+ *  Copyright (c) 2020 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.
+ */
+
+#ifndef TEST_PC_E2E_CROSS_MEDIA_METRICS_REPORTER_H_
+#define TEST_PC_E2E_CROSS_MEDIA_METRICS_REPORTER_H_
+
+#include <map>
+#include <string>
+
+#include "absl/strings/string_view.h"
+#include "absl/types/optional.h"
+#include "api/numerics/samples_stats_counter.h"
+#include "api/test/metrics/metrics_logger.h"
+#include "api/test/peerconnection_quality_test_fixture.h"
+#include "api/test/track_id_stream_info_map.h"
+#include "api/units/timestamp.h"
+#include "rtc_base/synchronization/mutex.h"
+
+namespace webrtc {
+namespace webrtc_pc_e2e {
+
+class CrossMediaMetricsReporter
+    : public PeerConnectionE2EQualityTestFixture::QualityMetricsReporter {
+ public:
+  explicit CrossMediaMetricsReporter(test::MetricsLogger* metrics_logger);
+  ~CrossMediaMetricsReporter() override = default;
+
+  void Start(absl::string_view test_case_name,
+             const TrackIdStreamInfoMap* reporter_helper) override;
+  void OnStatsReports(
+      absl::string_view pc_label,
+      const rtc::scoped_refptr<const RTCStatsReport>& report) override;
+  void StopAndReportResults() override;
+
+ private:
+  struct StatsInfo {
+    SamplesStatsCounter audio_ahead_ms;
+    SamplesStatsCounter video_ahead_ms;
+
+    TrackIdStreamInfoMap::StreamInfo audio_stream_info;
+    TrackIdStreamInfoMap::StreamInfo video_stream_info;
+    std::string audio_stream_label;
+    std::string video_stream_label;
+  };
+
+  std::string GetTestCaseName(const std::string& stream_label,
+                              const std::string& sync_group) const;
+
+  test::MetricsLogger* const metrics_logger_;
+
+  std::string test_case_name_;
+  const TrackIdStreamInfoMap* reporter_helper_;
+
+  Mutex mutex_;
+  std::map<std::string, StatsInfo> stats_info_ RTC_GUARDED_BY(mutex_);
+};
+
+}  // namespace webrtc_pc_e2e
+}  // namespace webrtc
+
+#endif  // TEST_PC_E2E_CROSS_MEDIA_METRICS_REPORTER_H_