rtcp_transceiver_impl.cc | Explore in Territory

/*
 *  Copyright (c) 2017 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 "modules/rtp_rtcp/source/rtcp_transceiver_impl.h"

#include <algorithm>
#include <utility>

#include "absl/algorithm/container.h"
#include "absl/memory/memory.h"
#include "absl/types/optional.h"
#include "api/video/video_bitrate_allocation.h"
#include "modules/rtp_rtcp/include/receive_statistics.h"
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "modules/rtp_rtcp/source/ntp_time_util.h"
#include "modules/rtp_rtcp/source/rtcp_packet.h"
#include "modules/rtp_rtcp/source/rtcp_packet/bye.h"
#include "modules/rtp_rtcp/source/rtcp_packet/common_header.h"
#include "modules/rtp_rtcp/source/rtcp_packet/extended_reports.h"
#include "modules/rtp_rtcp/source/rtcp_packet/fir.h"
#include "modules/rtp_rtcp/source/rtcp_packet/nack.h"
#include "modules/rtp_rtcp/source/rtcp_packet/pli.h"
#include "modules/rtp_rtcp/source/rtcp_packet/receiver_report.h"
#include "modules/rtp_rtcp/source/rtcp_packet/report_block.h"
#include "modules/rtp_rtcp/source/rtcp_packet/sdes.h"
#include "modules/rtp_rtcp/source/rtcp_packet/sender_report.h"
#include "modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h"
#include "rtc_base/checks.h"
#include "rtc_base/containers/flat_map.h"
#include "rtc_base/logging.h"
#include "rtc_base/numerics/divide_round.h"
#include "rtc_base/task_utils/repeating_task.h"
#include "rtc_base/time_utils.h"
#include "system_wrappers/include/clock.h"

namespace webrtc {
namespace {

struct SenderReportTimes { … };

std::function<void(rtc::ArrayView<const uint8_t>)> GetRtcpTransport(
    const RtcpTransceiverConfig& config) { … }

}  // namespace

struct RtcpTransceiverImpl::RemoteSenderState { … };

struct RtcpTransceiverImpl::LocalSenderState { … };

// Helper to put several RTCP packets into lower layer datagram composing
// Compound or Reduced-Size RTCP packet, as defined by RFC 5506 section 2.
// TODO(bugs.webrtc.org/8239): When in compound mode and packets are so many
// that several compound RTCP packets need to be generated, ensure each packet
// is compound.
class RtcpTransceiverImpl::PacketSender { … };

RtcpTransceiverImpl::RtcpTransceiverImpl(const RtcpTransceiverConfig& config)
    : … { … }

RtcpTransceiverImpl::~RtcpTransceiverImpl() = default;

void RtcpTransceiverImpl::AddMediaReceiverRtcpObserver(
    uint32_t remote_ssrc,
    MediaReceiverRtcpObserver* observer) { … }

void RtcpTransceiverImpl::RemoveMediaReceiverRtcpObserver(
    uint32_t remote_ssrc,
    MediaReceiverRtcpObserver* observer) { … }

bool RtcpTransceiverImpl::AddMediaSender(uint32_t local_ssrc,
                                         RtpStreamRtcpHandler* handler) { … }

bool RtcpTransceiverImpl::RemoveMediaSender(uint32_t local_ssrc) { … }

void RtcpTransceiverImpl::SetReadyToSend(bool ready) { … }

void RtcpTransceiverImpl::ReceivePacket(rtc::ArrayView<const uint8_t> packet,
                                        Timestamp now) { … }

void RtcpTransceiverImpl::SendCompoundPacket() { … }

void RtcpTransceiverImpl::SetRemb(int64_t bitrate_bps,
                                  std::vector<uint32_t> ssrcs) { … }

void RtcpTransceiverImpl::UnsetRemb() { … }

void RtcpTransceiverImpl::SendNack(uint32_t ssrc,
                                   std::vector<uint16_t> sequence_numbers) { … }

void RtcpTransceiverImpl::SendPictureLossIndication(uint32_t ssrc) { … }

void RtcpTransceiverImpl::SendFullIntraRequest(
    rtc::ArrayView<const uint32_t> ssrcs,
    bool new_request) { … }

void RtcpTransceiverImpl::HandleReceivedPacket(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now,
    std::vector<ReportBlockData>& report_blocks) { … }

void RtcpTransceiverImpl::HandleBye(
    const rtcp::CommonHeader& rtcp_packet_header) { … }

void RtcpTransceiverImpl::HandleSenderReport(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now,
    std::vector<ReportBlockData>& report_blocks) { … }

void RtcpTransceiverImpl::HandleReceiverReport(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now,
    std::vector<ReportBlockData>& report_blocks) { … }

void RtcpTransceiverImpl::HandleReportBlocks(
    uint32_t sender_ssrc,
    Timestamp now,
    rtc::ArrayView<const rtcp::ReportBlock> rtcp_report_blocks,
    std::vector<ReportBlockData>& report_blocks) { … }

void RtcpTransceiverImpl::HandlePayloadSpecificFeedback(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now) { … }

void RtcpTransceiverImpl::HandleFir(
    const rtcp::CommonHeader& rtcp_packet_header) { … }

void RtcpTransceiverImpl::HandlePli(
    const rtcp::CommonHeader& rtcp_packet_header) { … }

void RtcpTransceiverImpl::HandleRemb(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now) { … }

void RtcpTransceiverImpl::HandleRtpFeedback(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now) { … }

void RtcpTransceiverImpl::HandleNack(
    const rtcp::CommonHeader& rtcp_packet_header) { … }

void RtcpTransceiverImpl::HandleTransportFeedback(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now) { … }

void RtcpTransceiverImpl::HandleExtendedReports(
    const rtcp::CommonHeader& rtcp_packet_header,
    Timestamp now) { … }

void RtcpTransceiverImpl::HandleDlrr(const rtcp::Dlrr& dlrr, Timestamp now) { … }

void RtcpTransceiverImpl::ProcessReportBlocks(
    Timestamp now,
    rtc::ArrayView<const ReportBlockData> report_blocks) { … }

void RtcpTransceiverImpl::HandleTargetBitrate(
    const rtcp::TargetBitrate& target_bitrate,
    uint32_t remote_ssrc) { … }

void RtcpTransceiverImpl::ReschedulePeriodicCompoundPackets() { … }

void RtcpTransceiverImpl::SchedulePeriodicCompoundPackets(TimeDelta delay) { … }

std::vector<uint32_t> RtcpTransceiverImpl::FillReports(
    Timestamp now,
    ReservedBytes reserved,
    PacketSender& rtcp_sender) { … }

void RtcpTransceiverImpl::CreateCompoundPacket(Timestamp now,
                                               size_t reserved_bytes,
                                               PacketSender& sender) { … }

void RtcpTransceiverImpl::SendPeriodicCompoundPacket() { … }

void RtcpTransceiverImpl::SendCombinedRtcpPacket(
    std::vector<std::unique_ptr<rtcp::RtcpPacket>> rtcp_packets) { … }

void RtcpTransceiverImpl::SendImmediateFeedback(
    const rtcp::RtcpPacket& rtcp_packet) { … }

std::vector<rtcp::ReportBlock> RtcpTransceiverImpl::CreateReportBlocks(
    Timestamp now,
    size_t num_max_blocks) { … }

}  // namespace webrtc
chromium/third_party/webrtc/modules/rtp_rtcp/source/rtcp_transceiver_impl.cc
