Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/congestion_controller/goog_cc/probe_bitrate_estimator.h b/third_party/libwebrtc/modules/congestion_controller/goog_cc/probe_bitrate_estimator.h
new file mode 100644
index 0000000000..f11aeceeb8
--- /dev/null
+++ b/third_party/libwebrtc/modules/congestion_controller/goog_cc/probe_bitrate_estimator.h
@@ -0,0 +1,59 @@
+/*
+ *  Copyright (c) 2016 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 MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_
+#define MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_
+
+#include <map>
+
+#include "absl/types/optional.h"
+#include "api/transport/network_types.h"
+#include "api/units/data_rate.h"
+#include "api/units/data_size.h"
+#include "api/units/timestamp.h"
+
+namespace webrtc {
+class RtcEventLog;
+
+class ProbeBitrateEstimator {
+ public:
+  explicit ProbeBitrateEstimator(RtcEventLog* event_log);
+  ~ProbeBitrateEstimator();
+
+  // Should be called for every probe packet we receive feedback about.
+  // Returns the estimated bitrate if the probe completes a valid cluster.
+  absl::optional<DataRate> HandleProbeAndEstimateBitrate(
+      const PacketResult& packet_feedback);
+
+  absl::optional<DataRate> FetchAndResetLastEstimatedBitrate();
+
+ private:
+  struct AggregatedCluster {
+    int num_probes = 0;
+    Timestamp first_send = Timestamp::PlusInfinity();
+    Timestamp last_send = Timestamp::MinusInfinity();
+    Timestamp first_receive = Timestamp::PlusInfinity();
+    Timestamp last_receive = Timestamp::MinusInfinity();
+    DataSize size_last_send = DataSize::Zero();
+    DataSize size_first_receive = DataSize::Zero();
+    DataSize size_total = DataSize::Zero();
+  };
+
+  // Erases old cluster data that was seen before `timestamp`.
+  void EraseOldClusters(Timestamp timestamp);
+
+  std::map<int, AggregatedCluster> clusters_;
+  RtcEventLog* const event_log_;
+  absl::optional<DataRate> estimated_data_rate_;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_