nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
Jonas Olsson | a4d8737 | 2019-07-05 17:08:33 | [diff] [blame] | 10 | #include "call/rtp_transport_controller_send.h" |
| 11 | |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 12 | #include <memory> |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 13 | #include <utility> |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 14 | #include <vector> |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 15 | |
Mirko Bonadei | 06d3559 | 2020-04-01 11:43:08 | [diff] [blame] | 16 | #include "absl/strings/match.h" |
Ali Tofigh | 641a1b1 | 2022-05-17 09:48:46 | [diff] [blame] | 17 | #include "absl/strings/string_view.h" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 18 | #include "absl/types/optional.h" |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 19 | #include "api/task_queue/pending_task_safety_flag.h" |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 20 | #include "api/transport/goog_cc_factory.h" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 21 | #include "api/transport/network_types.h" |
| 22 | #include "api/units/data_rate.h" |
| 23 | #include "api/units/time_delta.h" |
| 24 | #include "api/units/timestamp.h" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 25 | #include "call/rtp_video_sender.h" |
Sebastian Jansson | 0a5ed89 | 2019-09-18 13:37:31 | [diff] [blame] | 26 | #include "logging/rtc_event_log/events/rtc_event_remote_estimate.h" |
Sebastian Jansson | 166b45d | 2019-05-13 09:57:42 | [diff] [blame] | 27 | #include "logging/rtc_event_log/events/rtc_event_route_change.h" |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 28 | #include "modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 29 | #include "rtc_base/checks.h" |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 30 | #include "rtc_base/logging.h" |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 31 | #include "rtc_base/rate_limiter.h" |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 32 | |
| 33 | namespace webrtc { |
Sebastian Jansson | 19bea51 | 2018-03-13 18:07:46 | [diff] [blame] | 34 | namespace { |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 35 | static const int64_t kRetransmitWindowSizeMs = 500; |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 36 | static const size_t kMaxOverheadBytes = 500; |
Sebastian Jansson | 19bea51 | 2018-03-13 18:07:46 | [diff] [blame] | 37 | |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 38 | constexpr TimeDelta kPacerQueueUpdateInterval = TimeDelta::Millis(25); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 39 | |
| 40 | TargetRateConstraints ConvertConstraints(int min_bitrate_bps, |
| 41 | int max_bitrate_bps, |
| 42 | int start_bitrate_bps, |
Sebastian Jansson | aa01f27 | 2019-01-30 10:28:59 | [diff] [blame] | 43 | Clock* clock) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 44 | TargetRateConstraints msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 45 | msg.at_time = Timestamp::Millis(clock->TimeInMilliseconds()); |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 46 | msg.min_data_rate = min_bitrate_bps >= 0 |
| 47 | ? DataRate::BitsPerSec(min_bitrate_bps) |
| 48 | : DataRate::Zero(); |
| 49 | msg.max_data_rate = max_bitrate_bps > 0 |
| 50 | ? DataRate::BitsPerSec(max_bitrate_bps) |
| 51 | : DataRate::Infinity(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 52 | if (start_bitrate_bps > 0) |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 53 | msg.starting_rate = DataRate::BitsPerSec(start_bitrate_bps); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 54 | return msg; |
| 55 | } |
| 56 | |
| 57 | TargetRateConstraints ConvertConstraints(const BitrateConstraints& contraints, |
Sebastian Jansson | aa01f27 | 2019-01-30 10:28:59 | [diff] [blame] | 58 | Clock* clock) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 59 | return ConvertConstraints(contraints.min_bitrate_bps, |
| 60 | contraints.max_bitrate_bps, |
| 61 | contraints.start_bitrate_bps, clock); |
| 62 | } |
Erik Språng | 662678d | 2019-11-15 16:18:52 | [diff] [blame] | 63 | |
Jonas Oreland | e62c2f2 | 2022-03-29 09:04:48 | [diff] [blame] | 64 | bool IsEnabled(const FieldTrialsView& trials, absl::string_view key) { |
Erik Språng | e486a7b | 2022-03-15 14:13:25 | [diff] [blame] | 65 | return absl::StartsWith(trials.Lookup(key), "Enabled"); |
Erik Språng | 662678d | 2019-11-15 16:18:52 | [diff] [blame] | 66 | } |
| 67 | |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 68 | bool IsRelayed(const rtc::NetworkRoute& route) { |
| 69 | return route.local.uses_turn() || route.remote.uses_turn(); |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 70 | } |
Sebastian Jansson | 19bea51 | 2018-03-13 18:07:46 | [diff] [blame] | 71 | } // namespace |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 72 | |
| 73 | RtpTransportControllerSend::RtpTransportControllerSend( |
| 74 | Clock* clock, |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 75 | const RtpTransportConfig& config) |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 76 | : clock_(clock), |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 77 | event_log_(config.event_log), |
| 78 | task_queue_factory_(config.task_queue_factory), |
| 79 | bitrate_configurator_(config.bitrate_config), |
Etienne Pierre-doray | 03bce3f | 2021-03-29 17:36:15 | [diff] [blame] | 80 | pacer_started_(false), |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 81 | pacer_(clock, |
| 82 | &packet_router_, |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 83 | *config.trials, |
Erik Språng | 4f642c1 | 2023-02-14 15:50:00 | [diff] [blame] | 84 | TimeDelta::Millis(5), |
| 85 | 3, |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 86 | config.pacer_burst_interval), |
Sebastian Jansson | 317a522 | 2018-03-16 14:36:37 | [diff] [blame] | 87 | observer_(nullptr), |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 88 | controller_factory_override_(config.network_controller_factory), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 89 | controller_factory_fallback_( |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 90 | std::make_unique<GoogCcNetworkControllerFactory>( |
| 91 | config.network_state_predictor_factory)), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 92 | process_interval_(controller_factory_fallback_->GetProcessInterval()), |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 93 | last_report_block_time_(Timestamp::Millis(clock_->TimeInMilliseconds())), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 94 | reset_feedback_on_route_change_( |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 95 | !IsEnabled(*config.trials, "WebRTC-Bwe-NoFeedbackReset")), |
Christoffer Rodbro | c610e26 | 2019-01-08 09:49:19 | [diff] [blame] | 96 | add_pacing_to_cwin_( |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 97 | IsEnabled(*config.trials, |
| 98 | "WebRTC-AddPacingToCongestionWindowPushback")), |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 99 | relay_bandwidth_cap_("relay_cap", DataRate::PlusInfinity()), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 100 | transport_overhead_bytes_per_packet_(0), |
| 101 | network_available_(false), |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 102 | congestion_window_size_(DataSize::PlusInfinity()), |
| 103 | is_congested_(false), |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 104 | retransmission_rate_limiter_(clock, kRetransmitWindowSizeMs), |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 105 | task_queue_(*config.trials, |
| 106 | "rtp_send_controller", |
| 107 | config.task_queue_factory), |
| 108 | field_trials_(*config.trials) { |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 109 | ParseFieldTrial({&relay_bandwidth_cap_}, |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 110 | config.trials->Lookup("WebRTC-Bwe-NetworkRouteConstraints")); |
| 111 | initial_config_.constraints = |
| 112 | ConvertConstraints(config.bitrate_config, clock_); |
| 113 | initial_config_.event_log = config.event_log; |
| 114 | initial_config_.key_value_config = config.trials; |
| 115 | RTC_DCHECK(config.bitrate_config.start_bitrate_bps > 0); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 116 | |
Henrik Boström | da4c102 | 2022-11-15 14:45:41 | [diff] [blame] | 117 | pacer_.SetPacingRates( |
| 118 | DataRate::BitsPerSec(config.bitrate_config.start_bitrate_bps), |
| 119 | DataRate::Zero()); |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 120 | } |
Sebastian Jansson | c33c0fc | 2018-02-22 10:10:18 | [diff] [blame] | 121 | |
| 122 | RtpTransportControllerSend::~RtpTransportControllerSend() { |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 123 | RTC_DCHECK_RUN_ON(&main_thread_); |
Tommi | 1050fbc | 2021-06-03 15:58:28 | [diff] [blame] | 124 | RTC_DCHECK(video_rtp_senders_.empty()); |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 125 | if (task_queue_.IsCurrent()) { |
| 126 | // If these repeated tasks run on a task queue owned by |
| 127 | // `task_queue_`, they are stopped when the task queue is deleted. |
| 128 | // Otherwise, stop them here. |
| 129 | pacer_queue_update_task_.Stop(); |
| 130 | controller_task_.Stop(); |
| 131 | } |
Sebastian Jansson | c33c0fc | 2018-02-22 10:10:18 | [diff] [blame] | 132 | } |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 133 | |
Stefan Holmer | 9416ef8 | 2018-07-19 08:34:38 | [diff] [blame] | 134 | RtpVideoSenderInterface* RtpTransportControllerSend::CreateRtpVideoSender( |
Tommi | 8695282 | 2021-11-29 09:26:40 | [diff] [blame] | 135 | const std::map<uint32_t, RtpState>& suspended_ssrcs, |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 136 | const std::map<uint32_t, RtpPayloadState>& states, |
| 137 | const RtpConfig& rtp_config, |
Jiawei Ou | 5571812 | 2018-11-09 21:17:39 | [diff] [blame] | 138 | int rtcp_report_interval_ms, |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 139 | Transport* send_transport, |
| 140 | const RtpSenderObservers& observers, |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 141 | RtcEventLog* event_log, |
Benjamin Wright | 192eeec | 2018-10-18 00:27:25 | [diff] [blame] | 142 | std::unique_ptr<FecController> fec_controller, |
Marina Ciocea | e77912b | 2020-02-27 15:16:55 | [diff] [blame] | 143 | const RtpSenderFrameEncryptionConfig& frame_encryption_config, |
| 144 | rtc::scoped_refptr<FrameTransformerInterface> frame_transformer) { |
Tommi | 1050fbc | 2021-06-03 15:58:28 | [diff] [blame] | 145 | RTC_DCHECK_RUN_ON(&main_thread_); |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 146 | video_rtp_senders_.push_back(std::make_unique<RtpVideoSender>( |
Sebastian Jansson | 572c60f | 2019-03-04 17:30:41 | [diff] [blame] | 147 | clock_, suspended_ssrcs, states, rtp_config, rtcp_report_interval_ms, |
Oleh Prypin | e896490 | 2019-03-29 15:33:01 | [diff] [blame] | 148 | send_transport, observers, |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 149 | // TODO(holmer): Remove this circular dependency by injecting |
| 150 | // the parts of RtpTransportControllerSendInterface that are really used. |
Benjamin Wright | 192eeec | 2018-10-18 00:27:25 | [diff] [blame] | 151 | this, event_log, &retransmission_rate_limiter_, std::move(fec_controller), |
| 152 | frame_encryption_config.frame_encryptor, |
Jonas Oreland | c7f691a | 2022-03-09 14:12:07 | [diff] [blame] | 153 | frame_encryption_config.crypto_options, std::move(frame_transformer), |
Evan Shrubsole | 9b643d4 | 2022-10-07 14:22:44 | [diff] [blame] | 154 | field_trials_, task_queue_factory_)); |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 155 | return video_rtp_senders_.back().get(); |
| 156 | } |
| 157 | |
Stefan Holmer | 9416ef8 | 2018-07-19 08:34:38 | [diff] [blame] | 158 | void RtpTransportControllerSend::DestroyRtpVideoSender( |
| 159 | RtpVideoSenderInterface* rtp_video_sender) { |
Tommi | 1050fbc | 2021-06-03 15:58:28 | [diff] [blame] | 160 | RTC_DCHECK_RUN_ON(&main_thread_); |
Stefan Holmer | 9416ef8 | 2018-07-19 08:34:38 | [diff] [blame] | 161 | std::vector<std::unique_ptr<RtpVideoSenderInterface>>::iterator it = |
Stefan Holmer | 5ed25af | 2018-07-18 13:17:14 | [diff] [blame] | 162 | video_rtp_senders_.end(); |
| 163 | for (it = video_rtp_senders_.begin(); it != video_rtp_senders_.end(); ++it) { |
| 164 | if (it->get() == rtp_video_sender) { |
| 165 | break; |
| 166 | } |
| 167 | } |
| 168 | RTC_DCHECK(it != video_rtp_senders_.end()); |
| 169 | video_rtp_senders_.erase(it); |
| 170 | } |
| 171 | |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 172 | void RtpTransportControllerSend::UpdateControlState() { |
| 173 | absl::optional<TargetTransferRate> update = control_handler_->GetUpdate(); |
| 174 | if (!update) |
| 175 | return; |
Sebastian Jansson | f34116e | 2019-09-24 15:55:50 | [diff] [blame] | 176 | retransmission_rate_limiter_.SetMaxRate(update->target_rate.bps()); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 177 | // We won't create control_handler_ until we have an observers. |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 178 | RTC_DCHECK(observer_ != nullptr); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 179 | observer_->OnTargetTransferRate(*update); |
Sebastian Jansson | e625605 | 2018-05-04 12:08:15 | [diff] [blame] | 180 | } |
| 181 | |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 182 | void RtpTransportControllerSend::UpdateCongestedState() { |
Markus Handell | eb27752 | 2023-03-03 15:38:10 | [diff] [blame] | 183 | if (auto update = GetCongestedStateUpdate()) { |
| 184 | is_congested_ = update.value(); |
| 185 | pacer_.SetCongested(update.value()); |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | absl::optional<bool> RtpTransportControllerSend::GetCongestedStateUpdate() |
| 190 | const { |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 191 | bool congested = transport_feedback_adapter_.GetOutstandingData() >= |
| 192 | congestion_window_size_; |
Markus Handell | eb27752 | 2023-03-03 15:38:10 | [diff] [blame] | 193 | if (congested != is_congested_) |
| 194 | return congested; |
| 195 | return absl::nullopt; |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 196 | } |
| 197 | |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 198 | MaybeWorkerThread* RtpTransportControllerSend::GetWorkerQueue() { |
Sebastian Jansson | e625605 | 2018-05-04 12:08:15 | [diff] [blame] | 199 | return &task_queue_; |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 200 | } |
| 201 | |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 202 | PacketRouter* RtpTransportControllerSend::packet_router() { |
| 203 | return &packet_router_; |
| 204 | } |
| 205 | |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 206 | NetworkStateEstimateObserver* |
| 207 | RtpTransportControllerSend::network_state_estimate_observer() { |
| 208 | return this; |
| 209 | } |
| 210 | |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 211 | TransportFeedbackObserver* |
| 212 | RtpTransportControllerSend::transport_feedback_observer() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 213 | return this; |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 214 | } |
| 215 | |
Erik Språng | aa59eca | 2019-07-24 12:52:55 | [diff] [blame] | 216 | RtpPacketSender* RtpTransportControllerSend::packet_sender() { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 217 | return &pacer_; |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 218 | } |
| 219 | |
Stefan Holmer | 5c8942a | 2017-08-22 14:16:44 | [diff] [blame] | 220 | void RtpTransportControllerSend::SetAllocatedSendBitrateLimits( |
Sebastian Jansson | 93b1ea2 | 2019-09-18 16:31:52 | [diff] [blame] | 221 | BitrateAllocationLimits limits) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 222 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 93b1ea2 | 2019-09-18 16:31:52 | [diff] [blame] | 223 | streams_config_.min_total_allocated_bitrate = limits.min_allocatable_rate; |
| 224 | streams_config_.max_padding_rate = limits.max_padding_rate; |
| 225 | streams_config_.max_total_allocated_bitrate = limits.max_allocatable_rate; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 226 | UpdateStreamsConfig(); |
Stefan Holmer | 5c8942a | 2017-08-22 14:16:44 | [diff] [blame] | 227 | } |
Sebastian Jansson | 4c1ffb8 | 2018-02-15 15:51:58 | [diff] [blame] | 228 | void RtpTransportControllerSend::SetPacingFactor(float pacing_factor) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 229 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 230 | streams_config_.pacing_factor = pacing_factor; |
| 231 | UpdateStreamsConfig(); |
Sebastian Jansson | 4c1ffb8 | 2018-02-15 15:51:58 | [diff] [blame] | 232 | } |
| 233 | void RtpTransportControllerSend::SetQueueTimeLimit(int limit_ms) { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 234 | pacer_.SetQueueTimeLimit(TimeDelta::Millis(limit_ms)); |
Sebastian Jansson | 4c1ffb8 | 2018-02-15 15:51:58 | [diff] [blame] | 235 | } |
Sebastian Jansson | f298855 | 2019-10-29 16:18:51 | [diff] [blame] | 236 | StreamFeedbackProvider* |
| 237 | RtpTransportControllerSend::GetStreamFeedbackProvider() { |
JT Teh | ea992f8 | 2020-01-15 18:24:20 | [diff] [blame] | 238 | return &feedback_demuxer_; |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 239 | } |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 240 | |
| 241 | void RtpTransportControllerSend::RegisterTargetTransferRateObserver( |
| 242 | TargetTransferRateObserver* observer) { |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 243 | task_queue_.RunOrPost([this, observer] { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 244 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 245 | RTC_DCHECK(observer_ == nullptr); |
| 246 | observer_ = observer; |
Sebastian Jansson | 2701bc9 | 2018-12-11 14:02:47 | [diff] [blame] | 247 | observer_->OnStartRateUpdate(*initial_config_.constraints.starting_rate); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 248 | MaybeCreateControllers(); |
| 249 | }); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 250 | } |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 251 | |
| 252 | bool RtpTransportControllerSend::IsRelevantRouteChange( |
| 253 | const rtc::NetworkRoute& old_route, |
| 254 | const rtc::NetworkRoute& new_route) const { |
| 255 | // TODO(bugs.webrtc.org/11438): Experiment with using more information/ |
| 256 | // other conditions. |
| 257 | bool connected_changed = old_route.connected != new_route.connected; |
| 258 | bool route_ids_changed = |
| 259 | old_route.local.network_id() != new_route.local.network_id() || |
| 260 | old_route.remote.network_id() != new_route.remote.network_id(); |
| 261 | if (relay_bandwidth_cap_->IsFinite()) { |
| 262 | bool relaying_changed = IsRelayed(old_route) != IsRelayed(new_route); |
| 263 | return connected_changed || route_ids_changed || relaying_changed; |
| 264 | } else { |
| 265 | return connected_changed || route_ids_changed; |
| 266 | } |
| 267 | } |
| 268 | |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 269 | void RtpTransportControllerSend::OnNetworkRouteChanged( |
Ali Tofigh | 641a1b1 | 2022-05-17 09:48:46 | [diff] [blame] | 270 | absl::string_view transport_name, |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 271 | const rtc::NetworkRoute& network_route) { |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 272 | // Check if the network route is connected. |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 273 | |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 274 | if (!network_route.connected) { |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 275 | // TODO(honghaiz): Perhaps handle this in SignalChannelNetworkState and |
| 276 | // consider merging these two methods. |
| 277 | return; |
| 278 | } |
| 279 | |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 280 | absl::optional<BitrateConstraints> relay_constraint_update = |
| 281 | ApplyOrLiftRelayCap(IsRelayed(network_route)); |
| 282 | |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 283 | // Check whether the network route has changed on each transport. |
Ali Tofigh | c48f9ef | 2022-08-17 17:20:04 | [diff] [blame] | 284 | auto result = network_routes_.insert( |
| 285 | // Explicit conversion of transport_name to std::string here is necessary |
| 286 | // to support some platforms that cannot yet deal with implicit |
| 287 | // conversion in these types of situations. |
| 288 | std::make_pair(std::string(transport_name), network_route)); |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 289 | auto kv = result.first; |
| 290 | bool inserted = result.second; |
Jonas Oreland | 5b6a4d8 | 2020-03-24 06:36:52 | [diff] [blame] | 291 | if (inserted || !(kv->second == network_route)) { |
| 292 | RTC_LOG(LS_INFO) << "Network route changed on transport " << transport_name |
| 293 | << ": new_route = " << network_route.DebugString(); |
| 294 | if (!inserted) { |
| 295 | RTC_LOG(LS_INFO) << "old_route = " << kv->second.DebugString(); |
| 296 | } |
| 297 | } |
| 298 | |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 299 | if (inserted) { |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 300 | if (relay_constraint_update.has_value()) { |
| 301 | UpdateBitrateConstraints(*relay_constraint_update); |
| 302 | } |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 303 | task_queue_.RunOrPost([this, network_route] { |
Jakob Ivarsson | b4cdd62 | 2020-02-13 13:01:26 | [diff] [blame] | 304 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 305 | transport_overhead_bytes_per_packet_ = network_route.packet_overhead; |
| 306 | }); |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 307 | // No need to reset BWE if this is the first time the network connects. |
| 308 | return; |
| 309 | } |
Jonas Oreland | 5b6a4d8 | 2020-03-24 06:36:52 | [diff] [blame] | 310 | |
| 311 | const rtc::NetworkRoute old_route = kv->second; |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 312 | kv->second = network_route; |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 313 | |
| 314 | // Check if enough conditions of the new/old route has changed |
| 315 | // to trigger resetting of bitrates (and a probe). |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 316 | if (IsRelevantRouteChange(old_route, network_route)) { |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 317 | BitrateConstraints bitrate_config = bitrate_configurator_.GetConfig(); |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 318 | RTC_LOG(LS_INFO) << "Reset bitrates to min: " |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 319 | << bitrate_config.min_bitrate_bps |
| 320 | << " bps, start: " << bitrate_config.start_bitrate_bps |
| 321 | << " bps, max: " << bitrate_config.max_bitrate_bps |
| 322 | << " bps."; |
| 323 | RTC_DCHECK_GT(bitrate_config.start_bitrate_bps, 0); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 324 | |
Sebastian Jansson | 166b45d | 2019-05-13 09:57:42 | [diff] [blame] | 325 | if (event_log_) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 326 | event_log_->Log(std::make_unique<RtcEventRouteChange>( |
Sebastian Jansson | 166b45d | 2019-05-13 09:57:42 | [diff] [blame] | 327 | network_route.connected, network_route.packet_overhead)); |
| 328 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 329 | NetworkRouteChange msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 330 | msg.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 331 | msg.constraints = ConvertConstraints(bitrate_config, clock_); |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 332 | task_queue_.RunOrPost([this, msg, network_route] { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 333 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 334 | transport_overhead_bytes_per_packet_ = network_route.packet_overhead; |
| 335 | if (reset_feedback_on_route_change_) { |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 336 | transport_feedback_adapter_.SetNetworkRoute(network_route); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 337 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 338 | if (controller_) { |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 339 | PostUpdates(controller_->OnNetworkRouteChange(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 340 | } else { |
| 341 | UpdateInitialConstraints(msg.constraints); |
| 342 | } |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 343 | is_congested_ = false; |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 344 | pacer_.SetCongested(false); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 345 | }); |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 346 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 347 | } |
| 348 | void RtpTransportControllerSend::OnNetworkAvailability(bool network_available) { |
Tommi | 1050fbc | 2021-06-03 15:58:28 | [diff] [blame] | 349 | RTC_DCHECK_RUN_ON(&main_thread_); |
Harald Alvestrand | 977b265 | 2019-12-12 12:40:50 | [diff] [blame] | 350 | RTC_LOG(LS_VERBOSE) << "SignalNetworkState " |
| 351 | << (network_available ? "Up" : "Down"); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 352 | NetworkAvailability msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 353 | msg.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 354 | msg.network_available = network_available; |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 355 | task_queue_.RunOrPost([this, msg]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 356 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 357 | if (network_available_ == msg.network_available) |
| 358 | return; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 359 | network_available_ = msg.network_available; |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 360 | if (network_available_) { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 361 | pacer_.Resume(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 362 | } else { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 363 | pacer_.Pause(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 364 | } |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 365 | is_congested_ = false; |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 366 | pacer_.SetCongested(false); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 367 | |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 368 | if (controller_) { |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 369 | control_handler_->SetNetworkAvailability(network_available_); |
| 370 | PostUpdates(controller_->OnNetworkAvailability(msg)); |
| 371 | UpdateControlState(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 372 | } else { |
| 373 | MaybeCreateControllers(); |
| 374 | } |
| 375 | }); |
| 376 | |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 377 | for (auto& rtp_sender : video_rtp_senders_) { |
| 378 | rtp_sender->OnNetworkAvailability(network_available); |
| 379 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 380 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 381 | RtcpBandwidthObserver* RtpTransportControllerSend::GetBandwidthObserver() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 382 | return this; |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 383 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 384 | int64_t RtpTransportControllerSend::GetPacerQueuingDelayMs() const { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 385 | return pacer_.OldestPacketWaitTime().ms(); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 386 | } |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 387 | absl::optional<Timestamp> RtpTransportControllerSend::GetFirstPacketTime() |
| 388 | const { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 389 | return pacer_.FirstSentPacketTime(); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 390 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 391 | void RtpTransportControllerSend::EnablePeriodicAlrProbing(bool enable) { |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 392 | task_queue_.RunOrPost([this, enable]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 393 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 394 | streams_config_.requests_alr_probing = enable; |
| 395 | UpdateStreamsConfig(); |
| 396 | }); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 397 | } |
| 398 | void RtpTransportControllerSend::OnSentPacket( |
| 399 | const rtc::SentPacket& sent_packet) { |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 400 | // Normally called on the network thread ! |
Markus Handell | eb27752 | 2023-03-03 15:38:10 | [diff] [blame] | 401 | // TODO(bugs.webrtc.org/137439): Clarify other thread contexts calling in, and |
| 402 | // simplify task posting logic when the combined network/worker project |
| 403 | // launches. |
| 404 | if (TaskQueueBase::Current() != task_queue_.TaskQueueForPost()) { |
| 405 | // We can't use SafeTask here if we are using an owned task queue, because |
| 406 | // the safety flag will be destroyed when RtpTransportControllerSend is |
| 407 | // destroyed on the worker thread. But we must use SafeTask if we are using |
| 408 | // the worker thread, since the worker thread outlives |
| 409 | // RtpTransportControllerSend. |
| 410 | task_queue_.TaskQueueForPost()->PostTask( |
| 411 | task_queue_.MaybeSafeTask(safety_.flag(), [this, sent_packet]() { |
| 412 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 413 | ProcessSentPacket(sent_packet, /*posted_to_worker=*/true); |
| 414 | })); |
| 415 | return; |
| 416 | } |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 417 | |
Markus Handell | eb27752 | 2023-03-03 15:38:10 | [diff] [blame] | 418 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 419 | ProcessSentPacket(sent_packet, /*posted_to_worker=*/false); |
| 420 | } |
| 421 | |
| 422 | // RTC_RUN_ON(task_queue_) |
| 423 | void RtpTransportControllerSend::ProcessSentPacket( |
| 424 | const rtc::SentPacket& sent_packet, |
| 425 | bool posted_to_worker) { |
| 426 | absl::optional<SentPacket> packet_msg = |
| 427 | transport_feedback_adapter_.ProcessSentPacket(sent_packet); |
| 428 | if (!packet_msg) |
| 429 | return; |
| 430 | |
| 431 | auto congestion_update = GetCongestedStateUpdate(); |
| 432 | NetworkControlUpdate control_update; |
| 433 | if (controller_) |
| 434 | control_update = controller_->OnSentPacket(*packet_msg); |
| 435 | if (!congestion_update && !control_update.has_updates()) |
| 436 | return; |
| 437 | if (posted_to_worker) { |
| 438 | ProcessSentPacketUpdates(std::move(control_update)); |
| 439 | } else { |
| 440 | // TODO(bugs.webrtc.org/137439): Aim to remove downstream locks to permit |
| 441 | // removing this PostTask. |
| 442 | // At least in test situations (and possibly in production environments), we |
| 443 | // may get here synchronously with locks taken in PacketRouter::SendPacket. |
| 444 | // Because the pacer may at times synchronously re-enter |
| 445 | // PacketRouter::SendPacket, we need to break the chain here and PostTask to |
| 446 | // get out of the lock. In testing, having updates to process happens pretty |
| 447 | // rarely so we do not usually get here. |
| 448 | task_queue_.TaskQueueForPost()->PostTask(task_queue_.MaybeSafeTask( |
| 449 | safety_.flag(), |
| 450 | [this, control_update = std::move(control_update)]() mutable { |
| 451 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 452 | ProcessSentPacketUpdates(std::move(control_update)); |
| 453 | })); |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | // RTC_RUN_ON(task_queue_) |
| 458 | void RtpTransportControllerSend::ProcessSentPacketUpdates( |
| 459 | NetworkControlUpdate updates) { |
| 460 | // Only update outstanding data if: |
| 461 | // 1. Packet feedback is used. |
| 462 | // 2. The packet has not yet received an acknowledgement. |
| 463 | // 3. It is not a retransmission of an earlier packet. |
| 464 | UpdateCongestedState(); |
| 465 | if (controller_) { |
| 466 | PostUpdates(std::move(updates)); |
| 467 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 468 | } |
sprang | db2a9fc | 2017-08-09 13:42:32 | [diff] [blame] | 469 | |
Ying Wang | 8b27910 | 2019-05-27 15:19:08 | [diff] [blame] | 470 | void RtpTransportControllerSend::OnReceivedPacket( |
Sebastian Jansson | 607a6f1 | 2019-06-13 15:48:53 | [diff] [blame] | 471 | const ReceivedPacket& packet_msg) { |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 472 | task_queue_.RunOrPost([this, packet_msg]() { |
Ying Wang | 8b27910 | 2019-05-27 15:19:08 | [diff] [blame] | 473 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 474 | if (controller_) |
| 475 | PostUpdates(controller_->OnReceivedPacket(packet_msg)); |
| 476 | }); |
| 477 | } |
| 478 | |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 479 | void RtpTransportControllerSend::UpdateBitrateConstraints( |
| 480 | const BitrateConstraints& updated) { |
| 481 | TargetRateConstraints msg = ConvertConstraints(updated, clock_); |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 482 | task_queue_.RunOrPost([this, msg]() { |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 483 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 484 | if (controller_) { |
| 485 | PostUpdates(controller_->OnTargetRateConstraints(msg)); |
| 486 | } else { |
| 487 | UpdateInitialConstraints(msg); |
| 488 | } |
| 489 | }); |
| 490 | } |
| 491 | |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 492 | void RtpTransportControllerSend::SetSdpBitrateParameters( |
| 493 | const BitrateConstraints& constraints) { |
Danil Chapovalov | b9b146c | 2018-06-15 10:28:07 | [diff] [blame] | 494 | absl::optional<BitrateConstraints> updated = |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 495 | bitrate_configurator_.UpdateWithSdpParameters(constraints); |
| 496 | if (updated.has_value()) { |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 497 | UpdateBitrateConstraints(*updated); |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 498 | } else { |
| 499 | RTC_LOG(LS_VERBOSE) |
Sebastian Jansson | 8f83b42 | 2018-02-21 12:07:13 | [diff] [blame] | 500 | << "WebRTC.RtpTransportControllerSend.SetSdpBitrateParameters: " |
Jonas Olsson | b2b2031 | 2020-01-14 11:11:31 | [diff] [blame] | 501 | "nothing to update"; |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 502 | } |
| 503 | } |
| 504 | |
| 505 | void RtpTransportControllerSend::SetClientBitratePreferences( |
Niels Möller | 0c4f7be | 2018-05-07 12:01:37 | [diff] [blame] | 506 | const BitrateSettings& preferences) { |
Danil Chapovalov | b9b146c | 2018-06-15 10:28:07 | [diff] [blame] | 507 | absl::optional<BitrateConstraints> updated = |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 508 | bitrate_configurator_.UpdateWithClientPreferences(preferences); |
| 509 | if (updated.has_value()) { |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 510 | UpdateBitrateConstraints(*updated); |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 511 | } else { |
| 512 | RTC_LOG(LS_VERBOSE) |
Sebastian Jansson | 8f83b42 | 2018-02-21 12:07:13 | [diff] [blame] | 513 | << "WebRTC.RtpTransportControllerSend.SetClientBitratePreferences: " |
Jonas Olsson | b2b2031 | 2020-01-14 11:11:31 | [diff] [blame] | 514 | "nothing to update"; |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 515 | } |
| 516 | } |
Alex Narest | bcf9180 | 2018-06-25 14:08:36 | [diff] [blame] | 517 | |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 518 | absl::optional<BitrateConstraints> |
| 519 | RtpTransportControllerSend::ApplyOrLiftRelayCap(bool is_relayed) { |
| 520 | DataRate cap = is_relayed ? relay_bandwidth_cap_ : DataRate::PlusInfinity(); |
| 521 | return bitrate_configurator_.UpdateWithRelayCap(cap); |
| 522 | } |
| 523 | |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 524 | void RtpTransportControllerSend::OnTransportOverheadChanged( |
| 525 | size_t transport_overhead_bytes_per_packet) { |
Tommi | 1050fbc | 2021-06-03 15:58:28 | [diff] [blame] | 526 | RTC_DCHECK_RUN_ON(&main_thread_); |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 527 | if (transport_overhead_bytes_per_packet >= kMaxOverheadBytes) { |
| 528 | RTC_LOG(LS_ERROR) << "Transport overhead exceeds " << kMaxOverheadBytes; |
| 529 | return; |
| 530 | } |
| 531 | |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 532 | pacer_.SetTransportOverhead( |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 533 | DataSize::Bytes(transport_overhead_bytes_per_packet)); |
Mirko Bonadei | e7bc3a3 | 2020-01-29 18:45:00 | [diff] [blame] | 534 | |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 535 | // TODO(holmer): Call AudioRtpSenders when they have been moved to |
| 536 | // RtpTransportControllerSend. |
| 537 | for (auto& rtp_video_sender : video_rtp_senders_) { |
| 538 | rtp_video_sender->OnTransportOverheadChanged( |
| 539 | transport_overhead_bytes_per_packet); |
| 540 | } |
| 541 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 542 | |
Erik Språng | aa59eca | 2019-07-24 12:52:55 | [diff] [blame] | 543 | void RtpTransportControllerSend::AccountForAudioPacketsInPacedSender( |
| 544 | bool account_for_audio) { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 545 | pacer_.SetAccountForAudioPackets(account_for_audio); |
Erik Språng | aa59eca | 2019-07-24 12:52:55 | [diff] [blame] | 546 | } |
| 547 | |
Sebastian Jansson | c3eb9fd | 2020-01-29 16:42:52 | [diff] [blame] | 548 | void RtpTransportControllerSend::IncludeOverheadInPacedSender() { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 549 | pacer_.SetIncludeOverhead(); |
Sebastian Jansson | c3eb9fd | 2020-01-29 16:42:52 | [diff] [blame] | 550 | } |
| 551 | |
Erik Språng | 7703f23 | 2020-09-14 09:03:13 | [diff] [blame] | 552 | void RtpTransportControllerSend::EnsureStarted() { |
Etienne Pierre-doray | 03bce3f | 2021-03-29 17:36:15 | [diff] [blame] | 553 | if (!pacer_started_) { |
| 554 | pacer_started_ = true; |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 555 | pacer_.EnsureStarted(); |
Erik Språng | 7703f23 | 2020-09-14 09:03:13 | [diff] [blame] | 556 | } |
| 557 | } |
| 558 | |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 559 | void RtpTransportControllerSend::OnReceivedEstimatedBitrate(uint32_t bitrate) { |
| 560 | RemoteBitrateReport msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 561 | msg.receive_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 562 | msg.bandwidth = DataRate::BitsPerSec(bitrate); |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 563 | task_queue_.RunOrPost([this, msg]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 564 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 565 | if (controller_) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 566 | PostUpdates(controller_->OnRemoteBitrateReport(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 567 | }); |
| 568 | } |
| 569 | |
| 570 | void RtpTransportControllerSend::OnReceivedRtcpReceiverReport( |
| 571 | const ReportBlockList& report_blocks, |
| 572 | int64_t rtt_ms, |
| 573 | int64_t now_ms) { |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 574 | task_queue_.RunOrPost([this, report_blocks, now_ms, rtt_ms]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 575 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 576 | OnReceivedRtcpReceiverReportBlocks(report_blocks, now_ms); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 577 | RoundTripTimeUpdate report; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 578 | report.receive_time = Timestamp::Millis(now_ms); |
| 579 | report.round_trip_time = TimeDelta::Millis(rtt_ms); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 580 | report.smoothed = false; |
Christoffer Rodbro | 4bd3177 | 2019-03-27 11:34:21 | [diff] [blame] | 581 | if (controller_ && !report.round_trip_time.IsZero()) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 582 | PostUpdates(controller_->OnRoundTripTimeUpdate(report)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 583 | }); |
| 584 | } |
| 585 | |
Erik Språng | 30a276b | 2019-04-23 10:00:11 | [diff] [blame] | 586 | void RtpTransportControllerSend::OnAddPacket( |
| 587 | const RtpPacketSendInfo& packet_info) { |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 588 | Timestamp creation_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 589 | |
| 590 | task_queue_.RunOrPost([this, packet_info, creation_time]() { |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 591 | RTC_DCHECK_RUN_ON(&task_queue_); |
Tommi | 6f542d5 | 2022-01-24 12:36:40 | [diff] [blame] | 592 | feedback_demuxer_.AddPacket(packet_info); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 593 | transport_feedback_adapter_.AddPacket( |
Per Kjellander | e0b4cab | 2022-11-30 18:41:22 | [diff] [blame] | 594 | packet_info, transport_overhead_bytes_per_packet_, creation_time); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 595 | }); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 596 | } |
| 597 | |
| 598 | void RtpTransportControllerSend::OnTransportFeedback( |
| 599 | const rtcp::TransportFeedback& feedback) { |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 600 | auto feedback_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 601 | task_queue_.RunOrPost([this, feedback, feedback_time]() { |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 602 | RTC_DCHECK_RUN_ON(&task_queue_); |
Tommi | 6fba6b7 | 2022-01-28 08:00:01 | [diff] [blame] | 603 | feedback_demuxer_.OnTransportFeedback(feedback); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 604 | absl::optional<TransportPacketsFeedback> feedback_msg = |
| 605 | transport_feedback_adapter_.ProcessTransportFeedback(feedback, |
| 606 | feedback_time); |
Jianhui Dai | bf28797 | 2021-11-24 14:23:21 | [diff] [blame] | 607 | if (feedback_msg) { |
| 608 | if (controller_) |
| 609 | PostUpdates(controller_->OnTransportPacketsFeedback(*feedback_msg)); |
| 610 | |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 611 | // Only update outstanding data if any packet is first time acked. |
| 612 | UpdateCongestedState(); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 613 | } |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 614 | }); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 615 | } |
| 616 | |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 617 | void RtpTransportControllerSend::OnRemoteNetworkEstimate( |
| 618 | NetworkStateEstimate estimate) { |
Sebastian Jansson | 0a5ed89 | 2019-09-18 13:37:31 | [diff] [blame] | 619 | if (event_log_) { |
| 620 | event_log_->Log(std::make_unique<RtcEventRemoteEstimate>( |
| 621 | estimate.link_capacity_lower, estimate.link_capacity_upper)); |
| 622 | } |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 623 | estimate.update_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 624 | task_queue_.RunOrPost([this, estimate] { |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 625 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 626 | if (controller_) |
Danil Chapovalov | e34fb87 | 2019-10-21 08:51:08 | [diff] [blame] | 627 | PostUpdates(controller_->OnNetworkStateEstimate(estimate)); |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 628 | }); |
| 629 | } |
| 630 | |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 631 | void RtpTransportControllerSend::MaybeCreateControllers() { |
| 632 | RTC_DCHECK(!controller_); |
| 633 | RTC_DCHECK(!control_handler_); |
| 634 | |
| 635 | if (!network_available_ || !observer_) |
| 636 | return; |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 637 | control_handler_ = std::make_unique<CongestionControlHandler>(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 638 | |
| 639 | initial_config_.constraints.at_time = |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 640 | Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 641 | initial_config_.stream_based_config = streams_config_; |
| 642 | |
| 643 | // TODO(srte): Use fallback controller if no feedback is available. |
| 644 | if (controller_factory_override_) { |
| 645 | RTC_LOG(LS_INFO) << "Creating overridden congestion controller"; |
| 646 | controller_ = controller_factory_override_->Create(initial_config_); |
| 647 | process_interval_ = controller_factory_override_->GetProcessInterval(); |
| 648 | } else { |
| 649 | RTC_LOG(LS_INFO) << "Creating fallback congestion controller"; |
| 650 | controller_ = controller_factory_fallback_->Create(initial_config_); |
| 651 | process_interval_ = controller_factory_fallback_->GetProcessInterval(); |
| 652 | } |
| 653 | UpdateControllerWithTimeInterval(); |
| 654 | StartProcessPeriodicTasks(); |
| 655 | } |
| 656 | |
| 657 | void RtpTransportControllerSend::UpdateInitialConstraints( |
| 658 | TargetRateConstraints new_contraints) { |
| 659 | if (!new_contraints.starting_rate) |
| 660 | new_contraints.starting_rate = initial_config_.constraints.starting_rate; |
| 661 | RTC_DCHECK(new_contraints.starting_rate); |
| 662 | initial_config_.constraints = new_contraints; |
| 663 | } |
| 664 | |
| 665 | void RtpTransportControllerSend::StartProcessPeriodicTasks() { |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 666 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 667 | if (!pacer_queue_update_task_.Running()) { |
| 668 | pacer_queue_update_task_ = RepeatingTaskHandle::DelayedStart( |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 669 | task_queue_.TaskQueueForDelayedTasks(), kPacerQueueUpdateInterval, |
| 670 | [this]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 671 | RTC_DCHECK_RUN_ON(&task_queue_); |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 672 | TimeDelta expected_queue_time = pacer_.ExpectedQueueTime(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 673 | control_handler_->SetPacerQueue(expected_queue_time); |
| 674 | UpdateControlState(); |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 675 | return kPacerQueueUpdateInterval; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 676 | }); |
| 677 | } |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 678 | controller_task_.Stop(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 679 | if (process_interval_.IsFinite()) { |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 680 | controller_task_ = RepeatingTaskHandle::DelayedStart( |
Per Kjellander | 828ef91 | 2022-10-10 10:53:41 | [diff] [blame] | 681 | task_queue_.TaskQueueForDelayedTasks(), process_interval_, [this]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 682 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 683 | UpdateControllerWithTimeInterval(); |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 684 | return process_interval_; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 685 | }); |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | void RtpTransportControllerSend::UpdateControllerWithTimeInterval() { |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 690 | RTC_DCHECK(controller_); |
| 691 | ProcessInterval msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 692 | msg.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Christoffer Rodbro | c610e26 | 2019-01-08 09:49:19 | [diff] [blame] | 693 | if (add_pacing_to_cwin_) |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 694 | msg.pacer_queue = pacer_.QueueSizeData(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 695 | PostUpdates(controller_->OnProcessInterval(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 696 | } |
| 697 | |
| 698 | void RtpTransportControllerSend::UpdateStreamsConfig() { |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 699 | streams_config_.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 700 | if (controller_) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 701 | PostUpdates(controller_->OnStreamsConfig(streams_config_)); |
| 702 | } |
| 703 | |
| 704 | void RtpTransportControllerSend::PostUpdates(NetworkControlUpdate update) { |
| 705 | if (update.congestion_window) { |
Erik Språng | 6673437 | 2022-03-16 13:20:49 | [diff] [blame] | 706 | congestion_window_size_ = *update.congestion_window; |
| 707 | UpdateCongestedState(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 708 | } |
| 709 | if (update.pacer_config) { |
Erik Språng | f3f3a61 | 2022-05-13 13:55:29 | [diff] [blame] | 710 | pacer_.SetPacingRates(update.pacer_config->data_rate(), |
| 711 | update.pacer_config->pad_rate()); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 712 | } |
Per Kjellander | 88af203 | 2022-05-16 17:58:40 | [diff] [blame] | 713 | if (!update.probe_cluster_configs.empty()) { |
| 714 | pacer_.CreateProbeClusters(std::move(update.probe_cluster_configs)); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 715 | } |
| 716 | if (update.target_rate) { |
| 717 | control_handler_->SetTargetRate(*update.target_rate); |
| 718 | UpdateControlState(); |
| 719 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 720 | } |
| 721 | |
| 722 | void RtpTransportControllerSend::OnReceivedRtcpReceiverReportBlocks( |
| 723 | const ReportBlockList& report_blocks, |
| 724 | int64_t now_ms) { |
| 725 | if (report_blocks.empty()) |
| 726 | return; |
| 727 | |
| 728 | int total_packets_lost_delta = 0; |
| 729 | int total_packets_delta = 0; |
| 730 | |
| 731 | // Compute the packet loss from all report blocks. |
| 732 | for (const RTCPReportBlock& report_block : report_blocks) { |
| 733 | auto it = last_report_blocks_.find(report_block.source_ssrc); |
| 734 | if (it != last_report_blocks_.end()) { |
| 735 | auto number_of_packets = report_block.extended_highest_sequence_number - |
| 736 | it->second.extended_highest_sequence_number; |
| 737 | total_packets_delta += number_of_packets; |
| 738 | auto lost_delta = report_block.packets_lost - it->second.packets_lost; |
| 739 | total_packets_lost_delta += lost_delta; |
| 740 | } |
| 741 | last_report_blocks_[report_block.source_ssrc] = report_block; |
| 742 | } |
| 743 | // Can only compute delta if there has been previous blocks to compare to. If |
| 744 | // not, total_packets_delta will be unchanged and there's nothing more to do. |
| 745 | if (!total_packets_delta) |
| 746 | return; |
| 747 | int packets_received_delta = total_packets_delta - total_packets_lost_delta; |
| 748 | // To detect lost packets, at least one packet has to be received. This check |
| 749 | // is needed to avoid bandwith detection update in |
| 750 | // VideoSendStreamTest.SuspendBelowMinBitrate |
| 751 | |
| 752 | if (packets_received_delta < 1) |
| 753 | return; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 754 | Timestamp now = Timestamp::Millis(now_ms); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 755 | TransportLossReport msg; |
| 756 | msg.packets_lost_delta = total_packets_lost_delta; |
| 757 | msg.packets_received_delta = packets_received_delta; |
| 758 | msg.receive_time = now; |
| 759 | msg.start_time = last_report_block_time_; |
| 760 | msg.end_time = now; |
| 761 | if (controller_) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 762 | PostUpdates(controller_->OnTransportLossReport(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 763 | last_report_block_time_ = now; |
| 764 | } |
| 765 | |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 766 | } // namespace webrtc |