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86298f7a84
This cl adds an implementation of the RTCP feedback packet as specified in https://www.rfc-editor.org/rfc/rfc8888.html Bug: webrtc:15368 Change-Id: I0b9a7fb15512ff9f9e721efd8e03ebe981a8d9bd Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/347901 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42140}
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/*
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* Copyright (c) 2024 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_RTP_RTCP_SOURCE_RTCP_PACKET_CONGESTION_CONTROL_FEEDBACK_H_
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#define MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_CONGESTION_CONTROL_FEEDBACK_H_
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#include <cstdint>
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#include <vector>
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#include "api/array_view.h"
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#include "api/units/time_delta.h"
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#include "modules/rtp_rtcp/source/rtcp_packet/common_header.h"
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#include "modules/rtp_rtcp/source/rtcp_packet/rtpfb.h"
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#include "rtc_base/network/ecn_marking.h"
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namespace webrtc {
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namespace rtcp {
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// Congestion control feedback message as specified in
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// https://www.rfc-editor.org/rfc/rfc8888.html
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class CongestionControlFeedback : public Rtpfb {
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public:
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struct PacketInfo {
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uint32_t ssrc = 0;
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uint16_t sequence_number = 0;
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// Time offset from report timestamp.
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TimeDelta arrival_time_offset = TimeDelta::Zero();
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rtc::EcnMarking ecn = rtc::EcnMarking::kNotEct;
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};
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static constexpr uint8_t kFeedbackMessageType = 11;
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// `Packets` MUST be sorted in sequence_number order per SSRC.
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// `Packets` MUST not include duplicate sequence numbers.
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CongestionControlFeedback(std::vector<PacketInfo> packets,
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uint32_t report_timestamp_compact_ntp);
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CongestionControlFeedback() = default;
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bool Parse(const CommonHeader& packet);
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rtc::ArrayView<const PacketInfo> packets() const { return packets_; }
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uint32_t report_timestamp_compact_ntp() const {
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return report_timestamp_compact_ntp_;
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}
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// Serialize the packet.
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bool Create(uint8_t* packet,
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size_t* position,
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size_t max_length,
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PacketReadyCallback callback) const override;
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size_t BlockLength() const override;
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private:
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std::vector<PacketInfo> packets_;
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uint32_t report_timestamp_compact_ntp_ = 0;
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};
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} // namespace rtcp
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_CONGESTION_CONTROL_FEEDBACK_H_
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