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808531653e
Bug: webrtc:8239 Change-Id: I4a469b6a0c2e387e35262798f4686fbf310d00cd Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/251902 Reviewed-by: Emil Lundmark <lndmrk@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36037}
80 lines
2.3 KiB
C++
80 lines
2.3 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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*/
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#ifndef MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
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#define MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <vector>
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namespace webrtc {
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namespace rtcp {
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struct ReceiveTimeInfo {
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// RFC 3611 4.5
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ReceiveTimeInfo() : ssrc(0), last_rr(0), delay_since_last_rr(0) {}
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ReceiveTimeInfo(uint32_t ssrc, uint32_t last_rr, uint32_t delay)
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: ssrc(ssrc), last_rr(last_rr), delay_since_last_rr(delay) {}
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uint32_t ssrc;
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uint32_t last_rr;
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uint32_t delay_since_last_rr;
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};
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inline bool operator==(const ReceiveTimeInfo& lhs, const ReceiveTimeInfo& rhs) {
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return lhs.ssrc == rhs.ssrc && lhs.last_rr == rhs.last_rr &&
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lhs.delay_since_last_rr == rhs.delay_since_last_rr;
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}
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inline bool operator!=(const ReceiveTimeInfo& lhs, const ReceiveTimeInfo& rhs) {
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return !(lhs == rhs);
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}
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// DLRR Report Block: Delay since the Last Receiver Report (RFC 3611).
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class Dlrr {
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public:
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static const uint8_t kBlockType = 5;
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Dlrr();
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Dlrr(const Dlrr& other);
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~Dlrr();
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Dlrr& operator=(const Dlrr& other) = default;
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// Dlrr without items treated same as no dlrr block.
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explicit operator bool() const { return !sub_blocks_.empty(); }
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// Second parameter is value read from block header,
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// i.e. size of block in 32bits excluding block header itself.
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bool Parse(const uint8_t* buffer, uint16_t block_length_32bits);
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size_t BlockLength() const;
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// Fills buffer with the Dlrr.
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// Consumes BlockLength() bytes.
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void Create(uint8_t* buffer) const;
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void ClearItems() { sub_blocks_.clear(); }
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void AddDlrrItem(const ReceiveTimeInfo& time_info) {
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sub_blocks_.push_back(time_info);
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}
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const std::vector<ReceiveTimeInfo>& sub_blocks() const { return sub_blocks_; }
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private:
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static const size_t kBlockHeaderLength = 4;
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static const size_t kSubBlockLength = 12;
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std::vector<ReceiveTimeInfo> sub_blocks_;
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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_DLRR_H_
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