80ac24dd36
Design of individual block in ExtendedReports packet suggest there is no point to have more than one block per type. This CL reduce complexity of having several blocks of the same type in same report. BUG=webrtc:5260 Review-Url: https://codereview.webrtc.org/2378113002 Cr-Commit-Position: refs/heads/master@{#14855}
70 lines
2.1 KiB
C++
70 lines
2.1 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 WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
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#include <vector>
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#include "webrtc/base/basictypes.h"
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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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// 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) = default;
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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 // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_DLRR_H_
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