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d15a575ec3
Bug: webrtc:12419 Change-Id: I00cca16a0ec70246156ba00b97aa7ae5ccbf5364 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/205323 Commit-Queue: Artem Titov <titovartem@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33220}
101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_CONGESTION_CONTROLLER_RTP_TRANSPORT_FEEDBACK_ADAPTER_H_
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#define MODULES_CONGESTION_CONTROLLER_RTP_TRANSPORT_FEEDBACK_ADAPTER_H_
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#include <deque>
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#include <map>
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#include <utility>
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#include <vector>
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#include "api/sequence_checker.h"
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#include "api/transport/network_types.h"
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#include "modules/include/module_common_types_public.h"
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#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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#include "rtc_base/network/sent_packet.h"
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#include "rtc_base/network_route.h"
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#include "rtc_base/thread_annotations.h"
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namespace webrtc {
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struct PacketFeedback {
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PacketFeedback() = default;
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// Time corresponding to when this object was created.
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Timestamp creation_time = Timestamp::MinusInfinity();
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SentPacket sent;
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// Time corresponding to when the packet was received. Timestamped with the
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// receiver's clock. For unreceived packet, Timestamp::PlusInfinity() is
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// used.
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Timestamp receive_time = Timestamp::PlusInfinity();
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// The network route that this packet is associated with.
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rtc::NetworkRoute network_route;
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};
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class InFlightBytesTracker {
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public:
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void AddInFlightPacketBytes(const PacketFeedback& packet);
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void RemoveInFlightPacketBytes(const PacketFeedback& packet);
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DataSize GetOutstandingData(const rtc::NetworkRoute& network_route) const;
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private:
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struct NetworkRouteComparator {
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bool operator()(const rtc::NetworkRoute& a,
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const rtc::NetworkRoute& b) const;
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};
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std::map<rtc::NetworkRoute, DataSize, NetworkRouteComparator> in_flight_data_;
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};
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class TransportFeedbackAdapter {
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public:
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TransportFeedbackAdapter();
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void AddPacket(const RtpPacketSendInfo& packet_info,
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size_t overhead_bytes,
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Timestamp creation_time);
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absl::optional<SentPacket> ProcessSentPacket(
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const rtc::SentPacket& sent_packet);
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absl::optional<TransportPacketsFeedback> ProcessTransportFeedback(
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const rtcp::TransportFeedback& feedback,
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Timestamp feedback_receive_time);
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void SetNetworkRoute(const rtc::NetworkRoute& network_route);
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DataSize GetOutstandingData() const;
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private:
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enum class SendTimeHistoryStatus { kNotAdded, kOk, kDuplicate };
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std::vector<PacketResult> ProcessTransportFeedbackInner(
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const rtcp::TransportFeedback& feedback,
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Timestamp feedback_receive_time);
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DataSize pending_untracked_size_ = DataSize::Zero();
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Timestamp last_send_time_ = Timestamp::MinusInfinity();
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Timestamp last_untracked_send_time_ = Timestamp::MinusInfinity();
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SequenceNumberUnwrapper seq_num_unwrapper_;
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std::map<int64_t, PacketFeedback> history_;
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// Sequence numbers are never negative, using -1 as it always < a real
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// sequence number.
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int64_t last_ack_seq_num_ = -1;
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InFlightBytesTracker in_flight_;
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Timestamp current_offset_ = Timestamp::MinusInfinity();
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TimeDelta last_timestamp_ = TimeDelta::MinusInfinity();
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rtc::NetworkRoute network_route_;
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};
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} // namespace webrtc
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#endif // MODULES_CONGESTION_CONTROLLER_RTP_TRANSPORT_FEEDBACK_ADAPTER_H_
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