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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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24 | 24 |
25 namespace rtc { | 25 namespace rtc { |
26 struct SentPacket; | 26 struct SentPacket; |
27 } | 27 } |
28 | 28 |
29 namespace webrtc { | 29 namespace webrtc { |
30 | 30 |
31 class BitrateController; | 31 class BitrateController; |
32 class Clock; | 32 class Clock; |
33 class ProcessThread; | 33 class ProcessThread; |
34 class RateLimiter; | |
35 class RemoteBitrateEstimator; | 34 class RemoteBitrateEstimator; |
36 class RemoteBitrateObserver; | 35 class RemoteBitrateObserver; |
37 class RtcEventLog; | 36 class RtcEventLog; |
38 class TransportFeedbackObserver; | 37 class TransportFeedbackObserver; |
39 | 38 |
40 class CongestionController : public CallStatsObserver, public Module { | 39 class CongestionController : public CallStatsObserver, public Module { |
41 public: | 40 public: |
42 // Observer class for bitrate changes announced due to change in bandwidth | 41 // Observer class for bitrate changes announced due to change in bandwidth |
43 // estimate or due to that the send pacer is full. Fraction loss and rtt is | 42 // estimate or due to that the send pacer is full. Fraction loss and rtt is |
44 // also part of this callback to allow the observer to optimize its settings | 43 // also part of this callback to allow the observer to optimize its settings |
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74 int min_bitrate_bps, | 73 int min_bitrate_bps, |
75 int max_bitrate_bps); | 74 int max_bitrate_bps); |
76 virtual void SignalNetworkState(NetworkState state); | 75 virtual void SignalNetworkState(NetworkState state); |
77 virtual BitrateController* GetBitrateController() const; | 76 virtual BitrateController* GetBitrateController() const; |
78 virtual RemoteBitrateEstimator* GetRemoteBitrateEstimator( | 77 virtual RemoteBitrateEstimator* GetRemoteBitrateEstimator( |
79 bool send_side_bwe); | 78 bool send_side_bwe); |
80 virtual int64_t GetPacerQueuingDelayMs() const; | 79 virtual int64_t GetPacerQueuingDelayMs() const; |
81 virtual PacedSender* pacer() { return pacer_.get(); } | 80 virtual PacedSender* pacer() { return pacer_.get(); } |
82 virtual PacketRouter* packet_router() { return packet_router_.get(); } | 81 virtual PacketRouter* packet_router() { return packet_router_.get(); } |
83 virtual TransportFeedbackObserver* GetTransportFeedbackObserver(); | 82 virtual TransportFeedbackObserver* GetTransportFeedbackObserver(); |
84 RateLimiter* GetRetransmissionRateLimiter(); | |
85 | 83 |
86 // SetAllocatedSendBitrateLimits sets bitrates limits imposed by send codec | 84 // SetAllocatedSendBitrateLimits sets bitrates limits imposed by send codec |
87 // settings. | 85 // settings. |
88 // |min_send_bitrate_bps| is the total minimum send bitrate required by all | 86 // |min_send_bitrate_bps| is the total minimum send bitrate required by all |
89 // sending streams. This is the minimum bitrate the PacedSender will use. | 87 // sending streams. This is the minimum bitrate the PacedSender will use. |
90 // Note that CongestionController::OnNetworkChanged can still be called with | 88 // Note that CongestionController::OnNetworkChanged can still be called with |
91 // a lower bitrate estimate. | 89 // a lower bitrate estimate. |
92 // |max_padding_bitrate_bps| is the max bitrate the send streams request for | 90 // |max_padding_bitrate_bps| is the max bitrate the send streams request for |
93 // padding. This can be higher than the current network estimate and tells | 91 // padding. This can be higher than the current network estimate and tells |
94 // the PacedSender how much it should max pad unless there is real packets to | 92 // the PacedSender how much it should max pad unless there is real packets to |
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113 bool IsNetworkDown() const; | 111 bool IsNetworkDown() const; |
114 bool HasNetworkParametersToReportChanged(uint32_t bitrate_bps, | 112 bool HasNetworkParametersToReportChanged(uint32_t bitrate_bps, |
115 uint8_t fraction_loss, | 113 uint8_t fraction_loss, |
116 int64_t rtt); | 114 int64_t rtt); |
117 Clock* const clock_; | 115 Clock* const clock_; |
118 Observer* const observer_; | 116 Observer* const observer_; |
119 const std::unique_ptr<PacketRouter> packet_router_; | 117 const std::unique_ptr<PacketRouter> packet_router_; |
120 const std::unique_ptr<PacedSender> pacer_; | 118 const std::unique_ptr<PacedSender> pacer_; |
121 const std::unique_ptr<RemoteBitrateEstimator> remote_bitrate_estimator_; | 119 const std::unique_ptr<RemoteBitrateEstimator> remote_bitrate_estimator_; |
122 const std::unique_ptr<BitrateController> bitrate_controller_; | 120 const std::unique_ptr<BitrateController> bitrate_controller_; |
123 const std::unique_ptr<RateLimiter> retransmission_rate_limiter_; | |
124 RemoteEstimatorProxy remote_estimator_proxy_; | 121 RemoteEstimatorProxy remote_estimator_proxy_; |
125 TransportFeedbackAdapter transport_feedback_adapter_; | 122 TransportFeedbackAdapter transport_feedback_adapter_; |
126 int min_bitrate_bps_; | 123 int min_bitrate_bps_; |
127 rtc::CriticalSection critsect_; | 124 rtc::CriticalSection critsect_; |
128 uint32_t last_reported_bitrate_bps_ GUARDED_BY(critsect_); | 125 uint32_t last_reported_bitrate_bps_ GUARDED_BY(critsect_); |
129 uint8_t last_reported_fraction_loss_ GUARDED_BY(critsect_); | 126 uint8_t last_reported_fraction_loss_ GUARDED_BY(critsect_); |
130 int64_t last_reported_rtt_ GUARDED_BY(critsect_); | 127 int64_t last_reported_rtt_ GUARDED_BY(critsect_); |
131 NetworkState network_state_ GUARDED_BY(critsect_); | 128 NetworkState network_state_ GUARDED_BY(critsect_); |
132 | 129 |
133 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(CongestionController); | 130 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(CongestionController); |
134 }; | 131 }; |
135 | 132 |
136 } // namespace webrtc | 133 } // namespace webrtc |
137 | 134 |
138 #endif // WEBRTC_MODULES_CONGESTION_CONTROLLER_INCLUDE_CONGESTION_CONTROLLER_H_ | 135 #endif // WEBRTC_MODULES_CONGESTION_CONTROLLER_INCLUDE_CONGESTION_CONTROLLER_H_ |
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