mirror of
https://github.com/mollyim/webrtc.git
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979b6d62a8
Rename RtpVideoSender::SetActiveModules to SetSending to better match what it does. When a RtpVideoSender::SetSending(true) RTP packets can be sent on all associcated RTP streams (simulcast streams). Move registration of RtpRtcpModules to RtpTransportControllerSend to allow RtpTransportControllerSend to know when there are sending RTP streams. Purpose is to in later CLs allow RtpTransportControllerSend to trigger BWE probes. Bug: webrtc:14928 Change-Id: Ibf6c040b86713cdc4763c4691b7fd794b251eb49 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/335961 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41620}
214 lines
8.9 KiB
C++
214 lines
8.9 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 CALL_RTP_TRANSPORT_CONTROLLER_SEND_H_
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#define CALL_RTP_TRANSPORT_CONTROLLER_SEND_H_
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#include <atomic>
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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 "absl/strings/string_view.h"
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#include "api/environment/environment.h"
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#include "api/network_state_predictor.h"
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#include "api/sequence_checker.h"
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#include "api/task_queue/task_queue_base.h"
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#include "api/task_queue/task_queue_factory.h"
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#include "api/transport/network_control.h"
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#include "api/units/data_rate.h"
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#include "call/rtp_bitrate_configurator.h"
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#include "call/rtp_transport_config.h"
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#include "call/rtp_transport_controller_send_interface.h"
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#include "call/rtp_video_sender.h"
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#include "modules/congestion_controller/rtp/control_handler.h"
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#include "modules/congestion_controller/rtp/transport_feedback_adapter.h"
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#include "modules/congestion_controller/rtp/transport_feedback_demuxer.h"
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#include "modules/pacing/packet_router.h"
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#include "modules/pacing/rtp_packet_pacer.h"
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#include "modules/pacing/task_queue_paced_sender.h"
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#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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#include "rtc_base/network_route.h"
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#include "rtc_base/race_checker.h"
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#include "rtc_base/task_queue.h"
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#include "rtc_base/task_utils/repeating_task.h"
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namespace webrtc {
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class FrameEncryptorInterface;
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class RtcEventLog;
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class RtpTransportControllerSend final
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: public RtpTransportControllerSendInterface,
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public NetworkLinkRtcpObserver,
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public TransportFeedbackObserver,
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public NetworkStateEstimateObserver {
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public:
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explicit RtpTransportControllerSend(const RtpTransportConfig& config);
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~RtpTransportControllerSend() override;
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RtpTransportControllerSend(const RtpTransportControllerSend&) = delete;
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RtpTransportControllerSend& operator=(const RtpTransportControllerSend&) =
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delete;
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// TODO(tommi): Change to std::unique_ptr<>.
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RtpVideoSenderInterface* CreateRtpVideoSender(
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const std::map<uint32_t, RtpState>& suspended_ssrcs,
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const std::map<uint32_t, RtpPayloadState>&
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states, // move states into RtpTransportControllerSend
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const RtpConfig& rtp_config,
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int rtcp_report_interval_ms,
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Transport* send_transport,
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const RtpSenderObservers& observers,
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RtcEventLog* event_log,
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std::unique_ptr<FecController> fec_controller,
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const RtpSenderFrameEncryptionConfig& frame_encryption_config,
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rtc::scoped_refptr<FrameTransformerInterface> frame_transformer) override;
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void DestroyRtpVideoSender(
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RtpVideoSenderInterface* rtp_video_sender) override;
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// Implements RtpTransportControllerSendInterface
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void RegisterSendingRtpStream(RtpRtcpInterface& rtp_module) override;
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void DeRegisterSendingRtpStream(RtpRtcpInterface& rtp_module) override;
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PacketRouter* packet_router() override;
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NetworkStateEstimateObserver* network_state_estimate_observer() override;
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TransportFeedbackObserver* transport_feedback_observer() override;
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RtpPacketSender* packet_sender() override;
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void SetAllocatedSendBitrateLimits(BitrateAllocationLimits limits) override;
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void SetPacingFactor(float pacing_factor) override;
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void SetQueueTimeLimit(int limit_ms) override;
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StreamFeedbackProvider* GetStreamFeedbackProvider() override;
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void RegisterTargetTransferRateObserver(
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TargetTransferRateObserver* observer) override;
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void OnNetworkRouteChanged(absl::string_view transport_name,
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const rtc::NetworkRoute& network_route) override;
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void OnNetworkAvailability(bool network_available) override;
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NetworkLinkRtcpObserver* GetRtcpObserver() override;
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int64_t GetPacerQueuingDelayMs() const override;
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absl::optional<Timestamp> GetFirstPacketTime() const override;
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void EnablePeriodicAlrProbing(bool enable) override;
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void OnSentPacket(const rtc::SentPacket& sent_packet) override;
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void OnReceivedPacket(const ReceivedPacket& packet_msg) override;
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void SetSdpBitrateParameters(const BitrateConstraints& constraints) override;
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void SetClientBitratePreferences(const BitrateSettings& preferences) override;
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void OnTransportOverheadChanged(
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size_t transport_overhead_bytes_per_packet) override;
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void AccountForAudioPacketsInPacedSender(bool account_for_audio) override;
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void IncludeOverheadInPacedSender() override;
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void EnsureStarted() override;
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// Implements NetworkLinkRtcpObserver interface
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void OnReceiverEstimatedMaxBitrate(Timestamp receive_time,
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DataRate bitrate) override;
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void OnReport(Timestamp receive_time,
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rtc::ArrayView<const ReportBlockData> report_blocks) override;
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void OnRttUpdate(Timestamp receive_time, TimeDelta rtt) override;
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void OnTransportFeedback(Timestamp receive_time,
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const rtcp::TransportFeedback& feedback) override;
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// Implements TransportFeedbackObserver interface
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void OnAddPacket(const RtpPacketSendInfo& packet_info) override;
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// Implements NetworkStateEstimateObserver interface
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void OnRemoteNetworkEstimate(NetworkStateEstimate estimate) override;
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private:
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void MaybeCreateControllers() RTC_RUN_ON(sequence_checker_);
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void UpdateInitialConstraints(TargetRateConstraints new_contraints)
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RTC_RUN_ON(sequence_checker_);
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void StartProcessPeriodicTasks() RTC_RUN_ON(sequence_checker_);
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void UpdateControllerWithTimeInterval() RTC_RUN_ON(sequence_checker_);
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absl::optional<BitrateConstraints> ApplyOrLiftRelayCap(bool is_relayed);
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bool IsRelevantRouteChange(const rtc::NetworkRoute& old_route,
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const rtc::NetworkRoute& new_route) const;
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void UpdateBitrateConstraints(const BitrateConstraints& updated);
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void UpdateStreamsConfig() RTC_RUN_ON(sequence_checker_);
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void PostUpdates(NetworkControlUpdate update) RTC_RUN_ON(sequence_checker_);
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void UpdateControlState() RTC_RUN_ON(sequence_checker_);
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void UpdateCongestedState() RTC_RUN_ON(sequence_checker_);
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absl::optional<bool> GetCongestedStateUpdate() const
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RTC_RUN_ON(sequence_checker_);
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void ProcessSentPacket(const rtc::SentPacket& sent_packet)
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RTC_RUN_ON(sequence_checker_);
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void ProcessSentPacketUpdates(NetworkControlUpdate updates)
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RTC_RUN_ON(sequence_checker_);
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const Environment env_;
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SequenceChecker sequence_checker_;
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TaskQueueBase* task_queue_;
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PacketRouter packet_router_;
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std::vector<std::unique_ptr<RtpVideoSenderInterface>> video_rtp_senders_
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RTC_GUARDED_BY(&sequence_checker_);
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RtpBitrateConfigurator bitrate_configurator_;
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std::map<std::string, rtc::NetworkRoute> network_routes_
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RTC_GUARDED_BY(sequence_checker_);
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bool pacer_started_ RTC_GUARDED_BY(sequence_checker_);
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TaskQueuePacedSender pacer_;
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TargetTransferRateObserver* observer_ RTC_GUARDED_BY(sequence_checker_);
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TransportFeedbackDemuxer feedback_demuxer_;
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TransportFeedbackAdapter transport_feedback_adapter_
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RTC_GUARDED_BY(sequence_checker_);
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NetworkControllerFactoryInterface* const controller_factory_override_
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RTC_PT_GUARDED_BY(sequence_checker_);
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const std::unique_ptr<NetworkControllerFactoryInterface>
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controller_factory_fallback_ RTC_PT_GUARDED_BY(sequence_checker_);
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std::unique_ptr<CongestionControlHandler> control_handler_
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RTC_GUARDED_BY(sequence_checker_) RTC_PT_GUARDED_BY(sequence_checker_);
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std::unique_ptr<NetworkControllerInterface> controller_
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RTC_GUARDED_BY(sequence_checker_) RTC_PT_GUARDED_BY(sequence_checker_);
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TimeDelta process_interval_ RTC_GUARDED_BY(sequence_checker_);
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struct LossReport {
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uint32_t extended_highest_sequence_number = 0;
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int cumulative_lost = 0;
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};
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std::map<uint32_t, LossReport> last_report_blocks_
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RTC_GUARDED_BY(sequence_checker_);
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Timestamp last_report_block_time_ RTC_GUARDED_BY(sequence_checker_);
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NetworkControllerConfig initial_config_ RTC_GUARDED_BY(sequence_checker_);
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StreamsConfig streams_config_ RTC_GUARDED_BY(sequence_checker_);
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const bool reset_feedback_on_route_change_;
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const bool add_pacing_to_cwin_;
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FieldTrialParameter<DataRate> relay_bandwidth_cap_;
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size_t transport_overhead_bytes_per_packet_ RTC_GUARDED_BY(sequence_checker_);
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bool network_available_ RTC_GUARDED_BY(sequence_checker_);
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RepeatingTaskHandle pacer_queue_update_task_
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RTC_GUARDED_BY(sequence_checker_);
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RepeatingTaskHandle controller_task_ RTC_GUARDED_BY(sequence_checker_);
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DataSize congestion_window_size_ RTC_GUARDED_BY(sequence_checker_);
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bool is_congested_ RTC_GUARDED_BY(sequence_checker_);
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// Protected by internal locks.
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RateLimiter retransmission_rate_limiter_;
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ScopedTaskSafety safety_;
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};
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} // namespace webrtc
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#endif // CALL_RTP_TRANSPORT_CONTROLLER_SEND_H_
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