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/*
* 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 <vector>
#include "webrtc/base/criticalsection.h"
#include "webrtc/base/scoped_ptr.h"
#include "webrtc/base/socket.h"
#include "webrtc/modules/bitrate_controller/include/bitrate_controller.h"
#include "webrtc/stream.h"
namespace webrtc {
class BitrateAllocator;
class CallStats;
class Config;
class PacedSender;
class PacketRouter;
class ProcessThread;
class RemoteBitrateEstimator;
class RemoteEstimatorProxy;
class RtpRtcp;
class SendStatisticsProxy;
class TransportFeedbackAdapter;
class ViEEncoder;
class VieRemb;
class CongestionController : public BitrateObserver {
public:
CongestionController(ProcessThread* process_thread, CallStats* call_stats);
~CongestionController();
void AddEncoder(ViEEncoder* encoder);
void RemoveEncoder(ViEEncoder* encoder);
void SetBweBitrates(int min_bitrate_bps,
int start_bitrate_bps,
int max_bitrate_bps);
void SetChannelRembStatus(bool sender, bool receiver, RtpRtcp* rtp_module);
void SignalNetworkState(NetworkState state);
BitrateController* GetBitrateController() const;
RemoteBitrateEstimator* GetRemoteBitrateEstimator(bool send_side_bwe) const;
int64_t GetPacerQueuingDelayMs() const;
PacedSender* pacer() const { return pacer_.get(); }
PacketRouter* packet_router() const { return packet_router_.get(); }
BitrateAllocator* bitrate_allocator() const {
return bitrate_allocator_.get(); }
TransportFeedbackObserver* GetTransportFeedbackObserver();
// Implements BitrateObserver.
void OnNetworkChanged(uint32_t target_bitrate_bps,
uint8_t fraction_loss,
int64_t rtt) override;
void OnSentPacket(const rtc::SentPacket& sent_packet);
private:
rtc::scoped_ptr<VieRemb> remb_;
// TODO(mflodman): Move bitrate_allocator_ to Call.
rtc::scoped_ptr<BitrateAllocator> bitrate_allocator_;
rtc::scoped_ptr<PacketRouter> packet_router_;
rtc::scoped_ptr<PacedSender> pacer_;
rtc::scoped_ptr<RemoteBitrateEstimator> remote_bitrate_estimator_;
rtc::scoped_ptr<RemoteEstimatorProxy> remote_estimator_proxy_;
mutable rtc::CriticalSection encoder_crit_;
std::vector<ViEEncoder*> encoders_ GUARDED_BY(encoder_crit_);
// Registered at construct time and assumed to outlive this class.
ProcessThread* const process_thread_;
CallStats* const call_stats_;
rtc::scoped_ptr<ProcessThread> pacer_thread_;
rtc::scoped_ptr<BitrateController> bitrate_controller_;
rtc::scoped_ptr<TransportFeedbackAdapter> transport_feedback_adapter_;
int min_bitrate_bps_;
};
} // namespace webrtc
#endif // WEBRTC_CALL_CONGESTION_CONTROLLER_H_
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