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e3927c5885
Bug: webrtc:8239 Change-Id: I8678d1ee9cd0da194a1243d40b508bb62cb3f257 Reviewed-on: https://webrtc-review.googlesource.com/60180 Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22311}
105 lines
3.9 KiB
C++
105 lines
3.9 KiB
C++
/*
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* Copyright (c) 2017 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_TRANSCEIVER_IMPL_H_
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#define MODULES_RTP_RTCP_SOURCE_RTCP_TRANSCEIVER_IMPL_H_
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "api/array_view.h"
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#include "api/optional.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/dlrr.h"
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#include "modules/rtp_rtcp/source/rtcp_packet/remb.h"
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#include "modules/rtp_rtcp/source/rtcp_packet/report_block.h"
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#include "modules/rtp_rtcp/source/rtcp_packet/target_bitrate.h"
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#include "modules/rtp_rtcp/source/rtcp_transceiver_config.h"
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#include "rtc_base/constructormagic.h"
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#include "rtc_base/weak_ptr.h"
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#include "system_wrappers/include/ntp_time.h"
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namespace webrtc {
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//
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// Manage incoming and outgoing rtcp messages for multiple BUNDLED streams.
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//
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// This class is not thread-safe.
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class RtcpTransceiverImpl {
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public:
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explicit RtcpTransceiverImpl(const RtcpTransceiverConfig& config);
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~RtcpTransceiverImpl();
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void AddMediaReceiverRtcpObserver(uint32_t remote_ssrc,
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MediaReceiverRtcpObserver* observer);
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void RemoveMediaReceiverRtcpObserver(uint32_t remote_ssrc,
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MediaReceiverRtcpObserver* observer);
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void SetReadyToSend(bool ready);
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void ReceivePacket(rtc::ArrayView<const uint8_t> packet, int64_t now_us);
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void SendCompoundPacket();
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void SetRemb(int64_t bitrate_bps, std::vector<uint32_t> ssrcs);
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void UnsetRemb();
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// Temporary helpers to send pre-built TransportFeedback rtcp packet.
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uint32_t sender_ssrc() const { return config_.feedback_ssrc; }
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void SendRawPacket(rtc::ArrayView<const uint8_t> packet);
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void SendNack(uint32_t ssrc, std::vector<uint16_t> sequence_numbers);
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void SendPictureLossIndication(uint32_t ssrc);
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void SendFullIntraRequest(rtc::ArrayView<const uint32_t> ssrcs);
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private:
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class PacketSender;
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struct RemoteSenderState;
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void HandleReceivedPacket(const rtcp::CommonHeader& rtcp_packet_header,
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int64_t now_us);
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// Individual rtcp packet handlers.
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void HandleBye(const rtcp::CommonHeader& rtcp_packet_header);
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void HandleSenderReport(const rtcp::CommonHeader& rtcp_packet_header,
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int64_t now_us);
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void HandleExtendedReports(const rtcp::CommonHeader& rtcp_packet_header,
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int64_t now_us);
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// Extended Reports blocks handlers.
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void HandleDlrr(const rtcp::Dlrr& dlrr, int64_t now_us);
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void HandleTargetBitrate(const rtcp::TargetBitrate& target_bitrate,
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uint32_t remote_ssrc);
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void ReschedulePeriodicCompoundPackets();
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void SchedulePeriodicCompoundPackets(int64_t delay_ms);
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// Creates compound RTCP packet, as defined in
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// https://tools.ietf.org/html/rfc5506#section-2
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void CreateCompoundPacket(PacketSender* sender);
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// Sends RTCP packets.
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void SendPeriodicCompoundPacket();
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void SendImmediateFeedback(const rtcp::RtcpPacket& rtcp_packet);
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// Generate Report Blocks to be send in Sender or Receiver Report.
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std::vector<rtcp::ReportBlock> CreateReportBlocks(int64_t now_us);
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const RtcpTransceiverConfig config_;
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bool ready_to_send_;
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rtc::Optional<rtcp::Remb> remb_;
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// TODO(danilchap): Remove entries from remote_senders_ that are no longer
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// needed.
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std::map<uint32_t, RemoteSenderState> remote_senders_;
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rtc::WeakPtrFactory<RtcpTransceiverImpl> ptr_factory_;
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(RtcpTransceiverImpl);
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_SOURCE_RTCP_TRANSCEIVER_IMPL_H_
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