1 /* 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. 3 * 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 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_CONGESTION_CONTROLLER_TRANSPORT_FEEDBACK_ADAPTER_H_ 12 #define MODULES_CONGESTION_CONTROLLER_TRANSPORT_FEEDBACK_ADAPTER_H_ 13 14 #include <deque> 15 #include <vector> 16 17 #include "modules/remote_bitrate_estimator/include/send_time_history.h" 18 #include "rtc_base/criticalsection.h" 19 #include "rtc_base/thread_annotations.h" 20 #include "rtc_base/thread_checker.h" 21 #include "system_wrappers/include/clock.h" 22 23 namespace webrtc { 24 25 class PacketFeedbackObserver; 26 27 namespace rtcp { 28 class TransportFeedback; 29 } // namespace rtcp 30 31 class TransportFeedbackAdapter { 32 public: 33 explicit TransportFeedbackAdapter(const Clock* clock); 34 virtual ~TransportFeedbackAdapter(); 35 36 void RegisterPacketFeedbackObserver(PacketFeedbackObserver* observer); 37 void DeRegisterPacketFeedbackObserver(PacketFeedbackObserver* observer); 38 39 void AddPacket(uint32_t ssrc, 40 uint16_t sequence_number, 41 size_t length, 42 const PacedPacketInfo& pacing_info); 43 void OnSentPacket(uint16_t sequence_number, int64_t send_time_ms); 44 45 // TODO(holmer): This method should return DelayBasedBwe::Result so that we 46 // can get rid of the dependency on BitrateController. Requires changes 47 // to the CongestionController interface. 48 void OnTransportFeedback(const rtcp::TransportFeedback& feedback); 49 std::vector<PacketFeedback> GetTransportFeedbackVector() const; 50 rtc::Optional<int64_t> GetMinFeedbackLoopRtt() const; 51 52 void SetTransportOverhead(int transport_overhead_bytes_per_packet); 53 54 void SetNetworkIds(uint16_t local_id, uint16_t remote_id); 55 56 size_t GetOutstandingBytes() const; 57 58 private: 59 std::vector<PacketFeedback> GetPacketFeedbackVector( 60 const rtcp::TransportFeedback& feedback); 61 62 const bool send_side_bwe_with_overhead_; 63 rtc::CriticalSection lock_; 64 int transport_overhead_bytes_per_packet_ RTC_GUARDED_BY(&lock_); 65 SendTimeHistory send_time_history_ RTC_GUARDED_BY(&lock_); 66 const Clock* const clock_; 67 int64_t current_offset_ms_; 68 int64_t last_timestamp_us_; 69 std::vector<PacketFeedback> last_packet_feedback_vector_; 70 uint16_t local_net_id_ RTC_GUARDED_BY(&lock_); 71 uint16_t remote_net_id_ RTC_GUARDED_BY(&lock_); 72 std::deque<int64_t> feedback_rtts_ RTC_GUARDED_BY(&lock_); 73 rtc::Optional<int64_t> min_feedback_rtt_ RTC_GUARDED_BY(&lock_); 74 75 rtc::CriticalSection observers_lock_; 76 std::vector<PacketFeedbackObserver*> observers_ 77 RTC_GUARDED_BY(&observers_lock_); 78 }; 79 80 } // namespace webrtc 81 82 #endif // MODULES_CONGESTION_CONTROLLER_TRANSPORT_FEEDBACK_ADAPTER_H_ 83