1 files changed, 95 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_processing/test/api_call_statistics.cc b/third_party/libwebrtc/modules/audio_processing/test/api_call_statistics.cc
new file mode 100644
index 0000000000..ee8a308596
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_processing/test/api_call_statistics.cc
@@ -0,0 +1,95 @@
+/*
+ *  Copyright (c) 2019 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 "modules/audio_processing/test/api_call_statistics.h"
+
+#include <algorithm>
+#include <fstream>
+#include <iostream>
+#include <limits>
+#include <memory>
+#include <string>
+
+#include "absl/strings/string_view.h"
+#include "rtc_base/time_utils.h"
+
+namespace webrtc {
+namespace test {
+
+void ApiCallStatistics::Add(int64_t duration_nanos, CallType call_type) {
+  calls_.push_back(CallData(duration_nanos, call_type));
+}
+
+void ApiCallStatistics::PrintReport() const {
+  int64_t min_render = std::numeric_limits<int64_t>::max();
+  int64_t min_capture = std::numeric_limits<int64_t>::max();
+  int64_t max_render = 0;
+  int64_t max_capture = 0;
+  int64_t sum_render = 0;
+  int64_t sum_capture = 0;
+  int64_t num_render = 0;
+  int64_t num_capture = 0;
+  int64_t avg_render = 0;
+  int64_t avg_capture = 0;
+
+  for (auto v : calls_) {
+    if (v.call_type == CallType::kRender) {
+      ++num_render;
+      min_render = std::min(min_render, v.duration_nanos);
+      max_render = std::max(max_render, v.duration_nanos);
+      sum_render += v.duration_nanos;
+    } else {
+      ++num_capture;
+      min_capture = std::min(min_capture, v.duration_nanos);
+      max_capture = std::max(max_capture, v.duration_nanos);
+      sum_capture += v.duration_nanos;
+    }
+  }
+  min_render /= rtc::kNumNanosecsPerMicrosec;
+  max_render /= rtc::kNumNanosecsPerMicrosec;
+  sum_render /= rtc::kNumNanosecsPerMicrosec;
+  min_capture /= rtc::kNumNanosecsPerMicrosec;
+  max_capture /= rtc::kNumNanosecsPerMicrosec;
+  sum_capture /= rtc::kNumNanosecsPerMicrosec;
+  avg_render = num_render > 0 ? sum_render / num_render : 0;
+  avg_capture = num_capture > 0 ? sum_capture / num_capture : 0;
+
+  std::cout << std::endl
+            << "Total time: " << (sum_capture + sum_render) * 1e-6 << " s"
+            << std::endl
+            << " Render API calls:" << std::endl
+            << "   min: " << min_render << " us" << std::endl
+            << "   max: " << max_render << " us" << std::endl
+            << "   avg: " << avg_render << " us" << std::endl
+            << " Capture API calls:" << std::endl
+            << "   min: " << min_capture << " us" << std::endl
+            << "   max: " << max_capture << " us" << std::endl
+            << "   avg: " << avg_capture << " us" << std::endl;
+}
+
+void ApiCallStatistics::WriteReportToFile(absl::string_view filename) const {
+  std::unique_ptr<std::ofstream> out =
+      std::make_unique<std::ofstream>(std::string(filename));
+  for (auto v : calls_) {
+    if (v.call_type == CallType::kRender) {
+      *out << "render, ";
+    } else {
+      *out << "capture, ";
+    }
+    *out << (v.duration_nanos / rtc::kNumNanosecsPerMicrosec) << std::endl;
+  }
+}
+
+ApiCallStatistics::CallData::CallData(int64_t duration_nanos,
+                                      CallType call_type)
+    : duration_nanos(duration_nanos), call_type(call_type) {}
+
+}  // namespace test
+}  // namespace webrtc