1 files changed, 85 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.h b/third_party/libwebrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.h
new file mode 100644
index 0000000000..44976caf5e
--- /dev/null
+++ b/third_party/libwebrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.h
@@ -0,0 +1,85 @@
+/*
+ *  Copyright (c) 2015 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_REMOTE_BITRATE_ESTIMATOR_REMOTE_BITRATE_ESTIMATOR_SINGLE_STREAM_H_
+#define MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_BITRATE_ESTIMATOR_SINGLE_STREAM_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <map>
+#include <vector>
+
+#include "absl/types/optional.h"
+#include "api/transport/field_trial_based_config.h"
+#include "api/units/data_rate.h"
+#include "api/units/time_delta.h"
+#include "api/units/timestamp.h"
+#include "modules/remote_bitrate_estimator/aimd_rate_control.h"
+#include "modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
+#include "modules/remote_bitrate_estimator/inter_arrival.h"
+#include "modules/remote_bitrate_estimator/overuse_detector.h"
+#include "modules/remote_bitrate_estimator/overuse_estimator.h"
+#include "rtc_base/bitrate_tracker.h"
+
+namespace webrtc {
+
+class Clock;
+struct RTPHeader;
+
+class RemoteBitrateEstimatorSingleStream : public RemoteBitrateEstimator {
+ public:
+  RemoteBitrateEstimatorSingleStream(RemoteBitrateObserver* observer,
+                                     Clock* clock);
+
+  RemoteBitrateEstimatorSingleStream() = delete;
+  RemoteBitrateEstimatorSingleStream(
+      const RemoteBitrateEstimatorSingleStream&) = delete;
+  RemoteBitrateEstimatorSingleStream& operator=(
+      const RemoteBitrateEstimatorSingleStream&) = delete;
+
+  ~RemoteBitrateEstimatorSingleStream() override;
+
+  void IncomingPacket(const RtpPacketReceived& rtp_packet) override;
+  TimeDelta Process() override;
+  void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) override;
+  void RemoveStream(uint32_t ssrc) override;
+  DataRate LatestEstimate() const override;
+
+ private:
+  struct Detector {
+    Detector();
+
+    Timestamp last_packet_time;
+    InterArrival inter_arrival;
+    OveruseEstimator estimator;
+    OveruseDetector detector;
+  };
+
+  // Triggers a new estimate calculation.
+  void UpdateEstimate(Timestamp now);
+
+  std::vector<uint32_t> GetSsrcs() const;
+
+  Clock* const clock_;
+  const FieldTrialBasedConfig field_trials_;
+  std::map<uint32_t, Detector> overuse_detectors_;
+  BitrateTracker incoming_bitrate_;
+  DataRate last_valid_incoming_bitrate_;
+  AimdRateControl remote_rate_;
+  RemoteBitrateObserver* const observer_;
+  absl::optional<Timestamp> last_process_time_;
+  TimeDelta process_interval_;
+  bool uma_recorded_;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_REMOTE_BITRATE_ESTIMATOR_REMOTE_BITRATE_ESTIMATOR_SINGLE_STREAM_H_