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e93454a383
Bug: webrtc:9883 Change-Id: Id9ae4b2485ba5ff201e77771774cfc83ccbda0d4 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/142220 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Sebastian Jansson <srte@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28295}
74 lines
2.7 KiB
C++
74 lines
2.7 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_SEND_TIME_HISTORY_H_
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#define MODULES_CONGESTION_CONTROLLER_RTP_SEND_TIME_HISTORY_H_
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#include <map>
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#include <utility>
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#include "api/units/data_size.h"
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#include "modules/include/module_common_types.h"
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#include "rtc_base/constructor_magic.h"
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namespace webrtc {
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struct PacketFeedback;
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class SendTimeHistory {
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public:
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enum class Status { kNotAdded, kOk, kDuplicate };
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explicit SendTimeHistory(int64_t packet_age_limit_ms);
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~SendTimeHistory();
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// Cleanup old entries, then add new packet info with provided parameters.
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void RemoveOld(int64_t at_time_ms);
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void AddNewPacket(PacketFeedback packet);
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void AddUntracked(size_t packet_size, int64_t send_time_ms);
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// Updates packet info identified by |sequence_number| with |send_time_ms|.
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// Returns a PacketSendState indicating if the packet was not found, sent,
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// or if it was previously already marked as sent.
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Status OnSentPacket(uint16_t sequence_number, int64_t send_time_ms);
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// Retrieves packet info identified by |sequence_number|.
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absl::optional<PacketFeedback> GetPacket(uint16_t sequence_number) const;
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// Look up PacketFeedback for a sent packet, based on the sequence number, and
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// populate all fields except for arrival_time. The packet parameter must
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// thus be non-null and have the sequence_number field set.
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bool GetFeedback(PacketFeedback* packet_feedback, bool remove);
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DataSize GetOutstandingData(uint16_t local_net_id,
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uint16_t remote_net_id) const;
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absl::optional<int64_t> GetFirstUnackedSendTime() const;
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private:
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using RemoteAndLocalNetworkId = std::pair<uint16_t, uint16_t>;
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void AddPacketBytes(const PacketFeedback& packet);
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void RemovePacketBytes(const PacketFeedback& packet);
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void UpdateAckedSeqNum(int64_t acked_seq_num);
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const int64_t packet_age_limit_ms_;
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size_t pending_untracked_size_ = 0;
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int64_t last_send_time_ms_ = -1;
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int64_t last_untracked_send_time_ms_ = -1;
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SequenceNumberUnwrapper seq_num_unwrapper_;
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std::map<int64_t, PacketFeedback> history_;
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absl::optional<int64_t> last_ack_seq_num_;
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std::map<RemoteAndLocalNetworkId, size_t> in_flight_bytes_;
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(SendTimeHistory);
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};
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} // namespace webrtc
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#endif // MODULES_CONGESTION_CONTROLLER_RTP_SEND_TIME_HISTORY_H_
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