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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include <vector>
#include "absl/types/optional.h"
#include "modules/rtp_rtcp/source/rtcp_packet.h"
#include "modules/rtp_rtcp/source/rtcp_packet/dlrr.h"
#include "modules/rtp_rtcp/source/rtcp_packet/rrtr.h"
#include "modules/rtp_rtcp/source/rtcp_packet/target_bitrate.h"
namespace webrtc {
namespace rtcp {
class CommonHeader;
// From RFC 3611: RTP Control Protocol Extended Reports (RTCP XR).
class ExtendedReports : public RtcpPacket {
static constexpr uint8_t kPacketType = 207;
static constexpr size_t kMaxNumberOfDlrrItems = 50;
ExtendedReports(const ExtendedReports& xr);
~ExtendedReports() override;
// Parse assumes header is already parsed and validated.
bool Parse(const CommonHeader& packet);
void SetRrtr(const Rrtr& rrtr);
bool AddDlrrItem(const ReceiveTimeInfo& time_info);
void SetTargetBitrate(const TargetBitrate& target_bitrate);
const absl::optional<Rrtr>& rrtr() const { return rrtr_block_; }
const Dlrr& dlrr() const { return dlrr_block_; }
const absl::optional<TargetBitrate>& target_bitrate() const {
return target_bitrate_;
size_t BlockLength() const override;
bool Create(uint8_t* packet,
size_t* index,
size_t max_length,
PacketReadyCallback callback) const override;
static constexpr size_t kXrBaseLength = 4;
size_t RrtrLength() const { return rrtr_block_ ? Rrtr::kLength : 0; }
size_t DlrrLength() const { return dlrr_block_.BlockLength(); }
size_t TargetBitrateLength() const;
void ParseRrtrBlock(const uint8_t* block, uint16_t block_length);
void ParseDlrrBlock(const uint8_t* block, uint16_t block_length);
void ParseTargetBitrateBlock(const uint8_t* block, uint16_t block_length);
absl::optional<Rrtr> rrtr_block_;
Dlrr dlrr_block_; // Dlrr without items treated same as no dlrr block.
absl::optional<TargetBitrate> target_bitrate_;
} // namespace rtcp
} // namespace webrtc