Move congestion controller to a separate module.

webrtc/call/congestion_controller.h

-/*
- *  Copyright (c) 2012 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 WEBRTC_CALL_CONGESTION_CONTROLLER_H_
-#define WEBRTC_CALL_CONGESTION_CONTROLLER_H_
-
-#include "webrtc/base/scoped_ptr.h"
-#include "webrtc/base/thread_checker.h"
-#include "webrtc/modules/include/module.h"
-#include "webrtc/modules/include/module_common_types.h"
-#include "webrtc/modules/pacing/packet_router.h"
-#include "webrtc/modules/remote_bitrate_estimator/remote_estimator_proxy.h"
-#include "webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.h"
-#include "webrtc/stream.h"
-
-namespace rtc {
-struct SentPacket;
-}
-
-namespace webrtc {
-
-class BitrateController;
-class BitrateObserver;
-class Clock;
-class PacedSender;
-class ProcessThread;
-class RemoteBitrateEstimator;
-class RemoteBitrateObserver;
-class TransportFeedbackObserver;
-
-class CongestionController : public CallStatsObserver, public Module {
- public:
-  CongestionController(Clock* clock,
-                       BitrateObserver* bitrate_observer,
-                       RemoteBitrateObserver* remote_bitrate_observer);
-  virtual ~CongestionController();
-
-  virtual void SetBweBitrates(int min_bitrate_bps,
-                              int start_bitrate_bps,
-                              int max_bitrate_bps);
-  virtual void SignalNetworkState(NetworkState state);
-  virtual BitrateController* GetBitrateController() const;
-  virtual RemoteBitrateEstimator* GetRemoteBitrateEstimator(
-      bool send_side_bwe);
-  virtual int64_t GetPacerQueuingDelayMs() const;
-  virtual PacedSender* pacer() { return pacer_.get(); }
-  virtual PacketRouter* packet_router() { return &packet_router_; }
-  virtual TransportFeedbackObserver* GetTransportFeedbackObserver();
-
-  virtual void UpdatePacerBitrate(int bitrate_kbps,
-                                  int max_bitrate_kbps,
-                                  int min_bitrate_kbps);
-
-  virtual void OnSentPacket(const rtc::SentPacket& sent_packet);
-
-  // Implements CallStatsObserver.
-  void OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) override;
-
-  // Implements Module.
-  int64_t TimeUntilNextProcess() override;
-  int32_t Process() override;
-
- private:
-  Clock* const clock_;
-  rtc::ThreadChecker config_thread_checker_;
-  const rtc::scoped_ptr<PacedSender> pacer_;
-  const rtc::scoped_ptr<RemoteBitrateEstimator> remote_bitrate_estimator_;
-  const rtc::scoped_ptr<ProcessThread> pacer_thread_;
-  const rtc::scoped_ptr<BitrateController> bitrate_controller_;
-  PacketRouter packet_router_;
-  RemoteEstimatorProxy remote_estimator_proxy_;
-  TransportFeedbackAdapter transport_feedback_adapter_;
-  int min_bitrate_bps_;
-
-  RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(CongestionController);
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_CALL_CONGESTION_CONTROLLER_H_