1 files changed, 38 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/bitrate_tracker.cc b/third_party/libwebrtc/rtc_base/bitrate_tracker.cc
new file mode 100644
index 0000000000..340e444f24
--- /dev/null
+++ b/third_party/libwebrtc/rtc_base/bitrate_tracker.cc
@@ -0,0 +1,38 @@
+/*
+ *  Copyright (c) 2023 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 "rtc_base/bitrate_tracker.h"
+
+#include "absl/types/optional.h"
+#include "api/units/data_rate.h"
+#include "api/units/timestamp.h"
+#include "rtc_base/rate_statistics.h"
+
+namespace webrtc {
+
+BitrateTracker::BitrateTracker(TimeDelta max_window_size)
+    : impl_(max_window_size.ms(), RateStatistics::kBpsScale) {}
+
+absl::optional<DataRate> BitrateTracker::Rate(Timestamp now) const {
+  if (absl::optional<int64_t> rate = impl_.Rate(now.ms())) {
+    return DataRate::BitsPerSec(*rate);
+  }
+  return absl::nullopt;
+}
+
+bool BitrateTracker::SetWindowSize(TimeDelta window_size, Timestamp now) {
+  return impl_.SetWindowSize(window_size.ms(), now.ms());
+}
+
+void BitrateTracker::Update(int64_t bytes, Timestamp now) {
+  impl_.Update(bytes, now.ms());
+}
+
+}  // namespace webrtc