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" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 17 | #include "absl/types/optional.h" |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 18 | #include "api/transport/goog_cc_factory.h" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 19 | #include "api/transport/network_types.h" |
| 20 | #include "api/units/data_rate.h" |
| 21 | #include "api/units/time_delta.h" |
| 22 | #include "api/units/timestamp.h" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 23 | #include "call/rtp_video_sender.h" |
Sebastian Jansson | 0a5ed89 | 2019-09-18 13:37:31 | [diff] [blame] | 24 | #include "logging/rtc_event_log/events/rtc_event_remote_estimate.h" |
Sebastian Jansson | 166b45d | 2019-05-13 09:57:42 | [diff] [blame] | 25 | #include "logging/rtc_event_log/events/rtc_event_route_change.h" |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 26 | #include "modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h" |
Yves Gerey | 3e70781 | 2018-11-28 15:47:49 | [diff] [blame] | 27 | #include "rtc_base/checks.h" |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 28 | #include "rtc_base/logging.h" |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 29 | #include "rtc_base/rate_limiter.h" |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 30 | |
| 31 | namespace webrtc { |
Sebastian Jansson | 19bea51 | 2018-03-13 18:07:46 | [diff] [blame] | 32 | namespace { |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 33 | static const int64_t kRetransmitWindowSizeMs = 500; |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 34 | static const size_t kMaxOverheadBytes = 500; |
Sebastian Jansson | 19bea51 | 2018-03-13 18:07:46 | [diff] [blame] | 35 | |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 36 | constexpr TimeDelta kPacerQueueUpdateInterval = TimeDelta::Millis(25); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 37 | |
| 38 | TargetRateConstraints ConvertConstraints(int min_bitrate_bps, |
| 39 | int max_bitrate_bps, |
| 40 | int start_bitrate_bps, |
Sebastian Jansson | aa01f27 | 2019-01-30 10:28:59 | [diff] [blame] | 41 | Clock* clock) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 42 | TargetRateConstraints msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 43 | msg.at_time = Timestamp::Millis(clock->TimeInMilliseconds()); |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 44 | msg.min_data_rate = min_bitrate_bps >= 0 |
| 45 | ? DataRate::BitsPerSec(min_bitrate_bps) |
| 46 | : DataRate::Zero(); |
| 47 | msg.max_data_rate = max_bitrate_bps > 0 |
| 48 | ? DataRate::BitsPerSec(max_bitrate_bps) |
| 49 | : DataRate::Infinity(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 50 | if (start_bitrate_bps > 0) |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 51 | msg.starting_rate = DataRate::BitsPerSec(start_bitrate_bps); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 52 | return msg; |
| 53 | } |
| 54 | |
| 55 | TargetRateConstraints ConvertConstraints(const BitrateConstraints& contraints, |
Sebastian Jansson | aa01f27 | 2019-01-30 10:28:59 | [diff] [blame] | 56 | Clock* clock) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 57 | return ConvertConstraints(contraints.min_bitrate_bps, |
| 58 | contraints.max_bitrate_bps, |
| 59 | contraints.start_bitrate_bps, clock); |
| 60 | } |
Erik Språng | 662678d | 2019-11-15 16:18:52 | [diff] [blame] | 61 | |
| 62 | bool IsEnabled(const WebRtcKeyValueConfig* trials, absl::string_view key) { |
Erik Språng | 014dd3c | 2019-11-28 12:44:25 | [diff] [blame] | 63 | RTC_DCHECK(trials != nullptr); |
Mirko Bonadei | 06d3559 | 2020-04-01 11:43:08 | [diff] [blame] | 64 | return absl::StartsWith(trials->Lookup(key), "Enabled"); |
Erik Språng | 662678d | 2019-11-15 16:18:52 | [diff] [blame] | 65 | } |
| 66 | |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 67 | bool IsRelayed(const rtc::NetworkRoute& route) { |
| 68 | return route.local.uses_turn() || route.remote.uses_turn(); |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 69 | } |
| 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, |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 75 | webrtc::RtcEventLog* event_log, |
Ying Wang | 0810a7c | 2019-04-10 11:48:24 | [diff] [blame] | 76 | NetworkStatePredictorFactoryInterface* predictor_factory, |
Sebastian Jansson | dfce03a | 2018-05-18 16:05:10 | [diff] [blame] | 77 | NetworkControllerFactoryInterface* controller_factory, |
Sebastian Jansson | ed50e6c | 2019-03-01 13:45:21 | [diff] [blame] | 78 | const BitrateConstraints& bitrate_config, |
| 79 | std::unique_ptr<ProcessThread> process_thread, |
Erik Språng | 662678d | 2019-11-15 16:18:52 | [diff] [blame] | 80 | TaskQueueFactory* task_queue_factory, |
| 81 | const WebRtcKeyValueConfig* trials) |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 82 | : clock_(clock), |
Sebastian Jansson | 166b45d | 2019-05-13 09:57:42 | [diff] [blame] | 83 | event_log_(event_log), |
Sebastian Jansson | 317a522 | 2018-03-16 14:36:37 | [diff] [blame] | 84 | bitrate_configurator_(bitrate_config), |
Sebastian Jansson | ed50e6c | 2019-03-01 13:45:21 | [diff] [blame] | 85 | process_thread_(std::move(process_thread)), |
Erik Språng | 014dd3c | 2019-11-28 12:44:25 | [diff] [blame] | 86 | use_task_queue_pacer_(IsEnabled(trials, "WebRTC-TaskQueuePacer")), |
Erik Språng | 4314a49 | 2019-11-26 16:48:49 | [diff] [blame] | 87 | process_thread_pacer_(use_task_queue_pacer_ |
| 88 | ? nullptr |
| 89 | : new PacedSender(clock, |
| 90 | &packet_router_, |
| 91 | event_log, |
Erik Språng | 014dd3c | 2019-11-28 12:44:25 | [diff] [blame] | 92 | trials, |
Erik Språng | 4314a49 | 2019-11-26 16:48:49 | [diff] [blame] | 93 | process_thread_.get())), |
Erik Språng | 4ab61cb | 2020-05-19 15:40:58 | [diff] [blame] | 94 | task_queue_pacer_( |
| 95 | use_task_queue_pacer_ |
| 96 | ? new TaskQueuePacedSender( |
| 97 | clock, |
| 98 | &packet_router_, |
| 99 | event_log, |
| 100 | trials, |
| 101 | task_queue_factory, |
| 102 | /*hold_back_window = */ PacingController::kMinSleepTime) |
| 103 | : nullptr), |
Sebastian Jansson | 317a522 | 2018-03-16 14:36:37 | [diff] [blame] | 104 | observer_(nullptr), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 105 | controller_factory_override_(controller_factory), |
| 106 | controller_factory_fallback_( |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 107 | std::make_unique<GoogCcNetworkControllerFactory>(predictor_factory)), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 108 | process_interval_(controller_factory_fallback_->GetProcessInterval()), |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 109 | last_report_block_time_(Timestamp::Millis(clock_->TimeInMilliseconds())), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 110 | reset_feedback_on_route_change_( |
Erik Språng | 014dd3c | 2019-11-28 12:44:25 | [diff] [blame] | 111 | !IsEnabled(trials, "WebRTC-Bwe-NoFeedbackReset")), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 112 | send_side_bwe_with_overhead_( |
Erik Språng | 014dd3c | 2019-11-28 12:44:25 | [diff] [blame] | 113 | IsEnabled(trials, "WebRTC-SendSideBwe-WithOverhead")), |
Christoffer Rodbro | c610e26 | 2019-01-08 09:49:19 | [diff] [blame] | 114 | add_pacing_to_cwin_( |
Erik Språng | 014dd3c | 2019-11-28 12:44:25 | [diff] [blame] | 115 | IsEnabled(trials, "WebRTC-AddPacingToCongestionWindowPushback")), |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 116 | relay_bandwidth_cap_("relay_cap", DataRate::PlusInfinity()), |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 117 | transport_overhead_bytes_per_packet_(0), |
| 118 | network_available_(false), |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 119 | retransmission_rate_limiter_(clock, kRetransmitWindowSizeMs), |
Sebastian Jansson | ed50e6c | 2019-03-01 13:45:21 | [diff] [blame] | 120 | task_queue_(task_queue_factory->CreateTaskQueue( |
| 121 | "rtp_send_controller", |
| 122 | TaskQueueFactory::Priority::NORMAL)) { |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 123 | ParseFieldTrial({&relay_bandwidth_cap_}, |
| 124 | trials->Lookup("WebRTC-Bwe-NetworkRouteConstraints")); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 125 | initial_config_.constraints = ConvertConstraints(bitrate_config, clock_); |
Sebastian Jansson | df88cc0 | 2019-04-15 13:42:25 | [diff] [blame] | 126 | initial_config_.event_log = event_log; |
Erik Språng | 014dd3c | 2019-11-28 12:44:25 | [diff] [blame] | 127 | initial_config_.key_value_config = trials; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 128 | RTC_DCHECK(bitrate_config.start_bitrate_bps > 0); |
| 129 | |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 130 | pacer()->SetPacingRates( |
| 131 | DataRate::BitsPerSec(bitrate_config.start_bitrate_bps), DataRate::Zero()); |
Sebastian Jansson | bd9fe09 | 2018-05-07 14:33:50 | [diff] [blame] | 132 | |
Erik Språng | 4314a49 | 2019-11-26 16:48:49 | [diff] [blame] | 133 | if (!use_task_queue_pacer_) { |
| 134 | process_thread_->Start(); |
| 135 | } |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 136 | } |
Sebastian Jansson | c33c0fc | 2018-02-22 10:10:18 | [diff] [blame] | 137 | |
| 138 | RtpTransportControllerSend::~RtpTransportControllerSend() { |
Erik Språng | 4314a49 | 2019-11-26 16:48:49 | [diff] [blame] | 139 | if (!use_task_queue_pacer_) { |
| 140 | process_thread_->Stop(); |
| 141 | } |
Sebastian Jansson | c33c0fc | 2018-02-22 10:10:18 | [diff] [blame] | 142 | } |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 143 | |
Stefan Holmer | 9416ef8 | 2018-07-19 08:34:38 | [diff] [blame] | 144 | RtpVideoSenderInterface* RtpTransportControllerSend::CreateRtpVideoSender( |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 145 | std::map<uint32_t, RtpState> suspended_ssrcs, |
| 146 | const std::map<uint32_t, RtpPayloadState>& states, |
| 147 | const RtpConfig& rtp_config, |
Jiawei Ou | 5571812 | 2018-11-09 21:17:39 | [diff] [blame] | 148 | int rtcp_report_interval_ms, |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 149 | Transport* send_transport, |
| 150 | const RtpSenderObservers& observers, |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 151 | RtcEventLog* event_log, |
Benjamin Wright | 192eeec | 2018-10-18 00:27:25 | [diff] [blame] | 152 | std::unique_ptr<FecController> fec_controller, |
Marina Ciocea | e77912b | 2020-02-27 15:16:55 | [diff] [blame] | 153 | const RtpSenderFrameEncryptionConfig& frame_encryption_config, |
| 154 | rtc::scoped_refptr<FrameTransformerInterface> frame_transformer) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 155 | video_rtp_senders_.push_back(std::make_unique<RtpVideoSender>( |
Sebastian Jansson | 572c60f | 2019-03-04 17:30:41 | [diff] [blame] | 156 | clock_, suspended_ssrcs, states, rtp_config, rtcp_report_interval_ms, |
Oleh Prypin | e896490 | 2019-03-29 15:33:01 | [diff] [blame] | 157 | send_transport, observers, |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 158 | // TODO(holmer): Remove this circular dependency by injecting |
| 159 | // the parts of RtpTransportControllerSendInterface that are really used. |
Benjamin Wright | 192eeec | 2018-10-18 00:27:25 | [diff] [blame] | 160 | this, event_log, &retransmission_rate_limiter_, std::move(fec_controller), |
| 161 | frame_encryption_config.frame_encryptor, |
Marina Ciocea | e77912b | 2020-02-27 15:16:55 | [diff] [blame] | 162 | frame_encryption_config.crypto_options, std::move(frame_transformer))); |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 163 | return video_rtp_senders_.back().get(); |
| 164 | } |
| 165 | |
Stefan Holmer | 9416ef8 | 2018-07-19 08:34:38 | [diff] [blame] | 166 | void RtpTransportControllerSend::DestroyRtpVideoSender( |
| 167 | RtpVideoSenderInterface* rtp_video_sender) { |
| 168 | std::vector<std::unique_ptr<RtpVideoSenderInterface>>::iterator it = |
Stefan Holmer | 5ed25af | 2018-07-18 13:17:14 | [diff] [blame] | 169 | video_rtp_senders_.end(); |
| 170 | for (it = video_rtp_senders_.begin(); it != video_rtp_senders_.end(); ++it) { |
| 171 | if (it->get() == rtp_video_sender) { |
| 172 | break; |
| 173 | } |
| 174 | } |
| 175 | RTC_DCHECK(it != video_rtp_senders_.end()); |
| 176 | video_rtp_senders_.erase(it); |
| 177 | } |
| 178 | |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 179 | void RtpTransportControllerSend::UpdateControlState() { |
| 180 | absl::optional<TargetTransferRate> update = control_handler_->GetUpdate(); |
| 181 | if (!update) |
| 182 | return; |
Sebastian Jansson | f34116e | 2019-09-24 15:55:50 | [diff] [blame] | 183 | retransmission_rate_limiter_.SetMaxRate(update->target_rate.bps()); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 184 | // We won't create control_handler_ until we have an observers. |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 185 | RTC_DCHECK(observer_ != nullptr); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 186 | observer_->OnTargetTransferRate(*update); |
Sebastian Jansson | e625605 | 2018-05-04 12:08:15 | [diff] [blame] | 187 | } |
| 188 | |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 189 | RtpPacketPacer* RtpTransportControllerSend::pacer() { |
Erik Språng | 4314a49 | 2019-11-26 16:48:49 | [diff] [blame] | 190 | if (use_task_queue_pacer_) { |
| 191 | return task_queue_pacer_.get(); |
| 192 | } |
| 193 | return process_thread_pacer_.get(); |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | const RtpPacketPacer* RtpTransportControllerSend::pacer() const { |
Erik Språng | 4314a49 | 2019-11-26 16:48:49 | [diff] [blame] | 197 | if (use_task_queue_pacer_) { |
| 198 | return task_queue_pacer_.get(); |
| 199 | } |
| 200 | return process_thread_pacer_.get(); |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 201 | } |
| 202 | |
Sebastian Jansson | e625605 | 2018-05-04 12:08:15 | [diff] [blame] | 203 | rtc::TaskQueue* RtpTransportControllerSend::GetWorkerQueue() { |
| 204 | return &task_queue_; |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 205 | } |
| 206 | |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 207 | PacketRouter* RtpTransportControllerSend::packet_router() { |
| 208 | return &packet_router_; |
| 209 | } |
| 210 | |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 211 | NetworkStateEstimateObserver* |
| 212 | RtpTransportControllerSend::network_state_estimate_observer() { |
| 213 | return this; |
| 214 | } |
| 215 | |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 216 | TransportFeedbackObserver* |
| 217 | RtpTransportControllerSend::transport_feedback_observer() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 218 | return this; |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 219 | } |
| 220 | |
Erik Språng | aa59eca | 2019-07-24 12:52:55 | [diff] [blame] | 221 | RtpPacketSender* RtpTransportControllerSend::packet_sender() { |
Erik Språng | 4314a49 | 2019-11-26 16:48:49 | [diff] [blame] | 222 | if (use_task_queue_pacer_) { |
| 223 | return task_queue_pacer_.get(); |
| 224 | } |
| 225 | return process_thread_pacer_.get(); |
nisse | 76e62b0 | 2017-05-31 09:24:52 | [diff] [blame] | 226 | } |
| 227 | |
Stefan Holmer | 5c8942a | 2017-08-22 14:16:44 | [diff] [blame] | 228 | void RtpTransportControllerSend::SetAllocatedSendBitrateLimits( |
Sebastian Jansson | 93b1ea2 | 2019-09-18 16:31:52 | [diff] [blame] | 229 | BitrateAllocationLimits limits) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 230 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 93b1ea2 | 2019-09-18 16:31:52 | [diff] [blame] | 231 | streams_config_.min_total_allocated_bitrate = limits.min_allocatable_rate; |
| 232 | streams_config_.max_padding_rate = limits.max_padding_rate; |
| 233 | streams_config_.max_total_allocated_bitrate = limits.max_allocatable_rate; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 234 | UpdateStreamsConfig(); |
Stefan Holmer | 5c8942a | 2017-08-22 14:16:44 | [diff] [blame] | 235 | } |
Sebastian Jansson | 4c1ffb8 | 2018-02-15 15:51:58 | [diff] [blame] | 236 | void RtpTransportControllerSend::SetPacingFactor(float pacing_factor) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 237 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 238 | streams_config_.pacing_factor = pacing_factor; |
| 239 | UpdateStreamsConfig(); |
Sebastian Jansson | 4c1ffb8 | 2018-02-15 15:51:58 | [diff] [blame] | 240 | } |
| 241 | void RtpTransportControllerSend::SetQueueTimeLimit(int limit_ms) { |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 242 | pacer()->SetQueueTimeLimit(TimeDelta::Millis(limit_ms)); |
Sebastian Jansson | 4c1ffb8 | 2018-02-15 15:51:58 | [diff] [blame] | 243 | } |
Sebastian Jansson | f298855 | 2019-10-29 16:18:51 | [diff] [blame] | 244 | StreamFeedbackProvider* |
| 245 | RtpTransportControllerSend::GetStreamFeedbackProvider() { |
JT Teh | ea992f8 | 2020-01-15 18:24:20 | [diff] [blame] | 246 | return &feedback_demuxer_; |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 247 | } |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 248 | |
| 249 | void RtpTransportControllerSend::RegisterTargetTransferRateObserver( |
| 250 | TargetTransferRateObserver* observer) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 251 | task_queue_.PostTask([this, observer] { |
| 252 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 19704ec | 2018-03-12 14:59:12 | [diff] [blame] | 253 | RTC_DCHECK(observer_ == nullptr); |
| 254 | observer_ = observer; |
Sebastian Jansson | 2701bc9 | 2018-12-11 14:02:47 | [diff] [blame] | 255 | observer_->OnStartRateUpdate(*initial_config_.constraints.starting_rate); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 256 | MaybeCreateControllers(); |
| 257 | }); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 258 | } |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 259 | |
| 260 | bool RtpTransportControllerSend::IsRelevantRouteChange( |
| 261 | const rtc::NetworkRoute& old_route, |
| 262 | const rtc::NetworkRoute& new_route) const { |
| 263 | // TODO(bugs.webrtc.org/11438): Experiment with using more information/ |
| 264 | // other conditions. |
| 265 | bool connected_changed = old_route.connected != new_route.connected; |
| 266 | bool route_ids_changed = |
| 267 | old_route.local.network_id() != new_route.local.network_id() || |
| 268 | old_route.remote.network_id() != new_route.remote.network_id(); |
| 269 | if (relay_bandwidth_cap_->IsFinite()) { |
| 270 | bool relaying_changed = IsRelayed(old_route) != IsRelayed(new_route); |
| 271 | return connected_changed || route_ids_changed || relaying_changed; |
| 272 | } else { |
| 273 | return connected_changed || route_ids_changed; |
| 274 | } |
| 275 | } |
| 276 | |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 277 | void RtpTransportControllerSend::OnNetworkRouteChanged( |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 278 | const std::string& transport_name, |
| 279 | const rtc::NetworkRoute& network_route) { |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 280 | // Check if the network route is connected. |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 281 | |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 282 | if (!network_route.connected) { |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 283 | // TODO(honghaiz): Perhaps handle this in SignalChannelNetworkState and |
| 284 | // consider merging these two methods. |
| 285 | return; |
| 286 | } |
| 287 | |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 288 | absl::optional<BitrateConstraints> relay_constraint_update = |
| 289 | ApplyOrLiftRelayCap(IsRelayed(network_route)); |
| 290 | |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 291 | // Check whether the network route has changed on each transport. |
| 292 | auto result = |
| 293 | network_routes_.insert(std::make_pair(transport_name, network_route)); |
| 294 | auto kv = result.first; |
| 295 | bool inserted = result.second; |
Jonas Oreland | 5b6a4d8 | 2020-03-24 06:36:52 | [diff] [blame] | 296 | if (inserted || !(kv->second == network_route)) { |
| 297 | RTC_LOG(LS_INFO) << "Network route changed on transport " << transport_name |
| 298 | << ": new_route = " << network_route.DebugString(); |
| 299 | if (!inserted) { |
| 300 | RTC_LOG(LS_INFO) << "old_route = " << kv->second.DebugString(); |
| 301 | } |
| 302 | } |
| 303 | |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 304 | if (inserted) { |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 305 | if (relay_constraint_update.has_value()) { |
| 306 | UpdateBitrateConstraints(*relay_constraint_update); |
| 307 | } |
Jakob Ivarsson | b4cdd62 | 2020-02-13 13:01:26 | [diff] [blame] | 308 | task_queue_.PostTask([this, network_route] { |
| 309 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 310 | transport_overhead_bytes_per_packet_ = network_route.packet_overhead; |
| 311 | }); |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 312 | // No need to reset BWE if this is the first time the network connects. |
| 313 | return; |
| 314 | } |
Jonas Oreland | 5b6a4d8 | 2020-03-24 06:36:52 | [diff] [blame] | 315 | |
| 316 | const rtc::NetworkRoute old_route = kv->second; |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 317 | kv->second = network_route; |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 318 | |
| 319 | // Check if enough conditions of the new/old route has changed |
| 320 | // to trigger resetting of bitrates (and a probe). |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 321 | if (IsRelevantRouteChange(old_route, network_route)) { |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 322 | BitrateConstraints bitrate_config = bitrate_configurator_.GetConfig(); |
Jonas Oreland | 71fda36 | 2020-03-20 15:11:56 | [diff] [blame] | 323 | RTC_LOG(LS_INFO) << "Reset bitrates to min: " |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 324 | << bitrate_config.min_bitrate_bps |
| 325 | << " bps, start: " << bitrate_config.start_bitrate_bps |
| 326 | << " bps, max: " << bitrate_config.max_bitrate_bps |
| 327 | << " bps."; |
| 328 | RTC_DCHECK_GT(bitrate_config.start_bitrate_bps, 0); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 329 | |
Sebastian Jansson | 166b45d | 2019-05-13 09:57:42 | [diff] [blame] | 330 | if (event_log_) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 331 | event_log_->Log(std::make_unique<RtcEventRouteChange>( |
Sebastian Jansson | 166b45d | 2019-05-13 09:57:42 | [diff] [blame] | 332 | network_route.connected, network_route.packet_overhead)); |
| 333 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 334 | NetworkRouteChange msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 335 | msg.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 336 | msg.constraints = ConvertConstraints(bitrate_config, clock_); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 337 | task_queue_.PostTask([this, msg, network_route] { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 338 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 339 | transport_overhead_bytes_per_packet_ = network_route.packet_overhead; |
| 340 | if (reset_feedback_on_route_change_) { |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 341 | transport_feedback_adapter_.SetNetworkRoute(network_route); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 342 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 343 | if (controller_) { |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 344 | PostUpdates(controller_->OnNetworkRouteChange(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 345 | } else { |
| 346 | UpdateInitialConstraints(msg.constraints); |
| 347 | } |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 348 | pacer()->UpdateOutstandingData(DataSize::Zero()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 349 | }); |
Sebastian Jansson | 91bb667 | 2018-02-21 12:02:51 | [diff] [blame] | 350 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 351 | } |
| 352 | void RtpTransportControllerSend::OnNetworkAvailability(bool network_available) { |
Harald Alvestrand | 977b265 | 2019-12-12 12:40:50 | [diff] [blame] | 353 | RTC_LOG(LS_VERBOSE) << "SignalNetworkState " |
| 354 | << (network_available ? "Up" : "Down"); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 355 | NetworkAvailability msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 356 | msg.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 357 | msg.network_available = network_available; |
| 358 | task_queue_.PostTask([this, msg]() { |
| 359 | RTC_DCHECK_RUN_ON(&task_queue_); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 360 | if (network_available_ == msg.network_available) |
| 361 | return; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 362 | network_available_ = msg.network_available; |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 363 | if (network_available_) { |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 364 | pacer()->Resume(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 365 | } else { |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 366 | pacer()->Pause(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 367 | } |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 368 | pacer()->UpdateOutstandingData(DataSize::Zero()); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 369 | |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 370 | if (controller_) { |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 371 | control_handler_->SetNetworkAvailability(network_available_); |
| 372 | PostUpdates(controller_->OnNetworkAvailability(msg)); |
| 373 | UpdateControlState(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 374 | } else { |
| 375 | MaybeCreateControllers(); |
| 376 | } |
| 377 | }); |
| 378 | |
Stefan Holmer | dbdb3a0 | 2018-07-17 14:03:46 | [diff] [blame] | 379 | for (auto& rtp_sender : video_rtp_senders_) { |
| 380 | rtp_sender->OnNetworkAvailability(network_available); |
| 381 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 382 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 383 | RtcpBandwidthObserver* RtpTransportControllerSend::GetBandwidthObserver() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 384 | return this; |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 385 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 386 | int64_t RtpTransportControllerSend::GetPacerQueuingDelayMs() const { |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 387 | return pacer()->OldestPacketWaitTime().ms(); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 388 | } |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 389 | absl::optional<Timestamp> RtpTransportControllerSend::GetFirstPacketTime() |
| 390 | const { |
| 391 | return pacer()->FirstSentPacketTime(); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 392 | } |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 393 | void RtpTransportControllerSend::EnablePeriodicAlrProbing(bool enable) { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 394 | task_queue_.PostTask([this, enable]() { |
| 395 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 396 | streams_config_.requests_alr_probing = enable; |
| 397 | UpdateStreamsConfig(); |
| 398 | }); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 399 | } |
| 400 | void RtpTransportControllerSend::OnSentPacket( |
| 401 | const rtc::SentPacket& sent_packet) { |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 402 | task_queue_.PostTask([this, sent_packet]() { |
| 403 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 404 | absl::optional<SentPacket> packet_msg = |
| 405 | transport_feedback_adapter_.ProcessSentPacket(sent_packet); |
| 406 | pacer()->UpdateOutstandingData( |
| 407 | transport_feedback_adapter_.GetOutstandingData()); |
| 408 | if (packet_msg && controller_) |
| 409 | PostUpdates(controller_->OnSentPacket(*packet_msg)); |
| 410 | }); |
Sebastian Jansson | e4be6da | 2018-02-15 15:51:41 | [diff] [blame] | 411 | } |
sprang | db2a9fc | 2017-08-09 13:42:32 | [diff] [blame] | 412 | |
Ying Wang | 8b27910 | 2019-05-27 15:19:08 | [diff] [blame] | 413 | void RtpTransportControllerSend::OnReceivedPacket( |
Sebastian Jansson | 607a6f1 | 2019-06-13 15:48:53 | [diff] [blame] | 414 | const ReceivedPacket& packet_msg) { |
Ying Wang | 8b27910 | 2019-05-27 15:19:08 | [diff] [blame] | 415 | task_queue_.PostTask([this, packet_msg]() { |
| 416 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 417 | if (controller_) |
| 418 | PostUpdates(controller_->OnReceivedPacket(packet_msg)); |
| 419 | }); |
| 420 | } |
| 421 | |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 422 | void RtpTransportControllerSend::UpdateBitrateConstraints( |
| 423 | const BitrateConstraints& updated) { |
| 424 | TargetRateConstraints msg = ConvertConstraints(updated, clock_); |
| 425 | task_queue_.PostTask([this, msg]() { |
| 426 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 427 | if (controller_) { |
| 428 | PostUpdates(controller_->OnTargetRateConstraints(msg)); |
| 429 | } else { |
| 430 | UpdateInitialConstraints(msg); |
| 431 | } |
| 432 | }); |
| 433 | } |
| 434 | |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 435 | void RtpTransportControllerSend::SetSdpBitrateParameters( |
| 436 | const BitrateConstraints& constraints) { |
Danil Chapovalov | b9b146c | 2018-06-15 10:28:07 | [diff] [blame] | 437 | absl::optional<BitrateConstraints> updated = |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 438 | bitrate_configurator_.UpdateWithSdpParameters(constraints); |
| 439 | if (updated.has_value()) { |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 440 | UpdateBitrateConstraints(*updated); |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 441 | } else { |
| 442 | RTC_LOG(LS_VERBOSE) |
Sebastian Jansson | 8f83b42 | 2018-02-21 12:07:13 | [diff] [blame] | 443 | << "WebRTC.RtpTransportControllerSend.SetSdpBitrateParameters: " |
Jonas Olsson | b2b2031 | 2020-01-14 11:11:31 | [diff] [blame] | 444 | "nothing to update"; |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 445 | } |
| 446 | } |
| 447 | |
| 448 | void RtpTransportControllerSend::SetClientBitratePreferences( |
Niels Möller | 0c4f7be | 2018-05-07 12:01:37 | [diff] [blame] | 449 | const BitrateSettings& preferences) { |
Danil Chapovalov | b9b146c | 2018-06-15 10:28:07 | [diff] [blame] | 450 | absl::optional<BitrateConstraints> updated = |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 451 | bitrate_configurator_.UpdateWithClientPreferences(preferences); |
| 452 | if (updated.has_value()) { |
Christoffer Rodbro | b0ca519 | 2020-03-26 08:22:24 | [diff] [blame] | 453 | UpdateBitrateConstraints(*updated); |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 454 | } else { |
| 455 | RTC_LOG(LS_VERBOSE) |
Sebastian Jansson | 8f83b42 | 2018-02-21 12:07:13 | [diff] [blame] | 456 | << "WebRTC.RtpTransportControllerSend.SetClientBitratePreferences: " |
Jonas Olsson | b2b2031 | 2020-01-14 11:11:31 | [diff] [blame] | 457 | "nothing to update"; |
Sebastian Jansson | 97f61ea | 2018-02-21 12:01:55 | [diff] [blame] | 458 | } |
| 459 | } |
Alex Narest | bcf9180 | 2018-06-25 14:08:36 | [diff] [blame] | 460 | |
Christoffer Rodbro | 6404cdd | 2020-03-26 19:37:21 | [diff] [blame] | 461 | absl::optional<BitrateConstraints> |
| 462 | RtpTransportControllerSend::ApplyOrLiftRelayCap(bool is_relayed) { |
| 463 | DataRate cap = is_relayed ? relay_bandwidth_cap_ : DataRate::PlusInfinity(); |
| 464 | return bitrate_configurator_.UpdateWithRelayCap(cap); |
| 465 | } |
| 466 | |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 467 | void RtpTransportControllerSend::OnTransportOverheadChanged( |
| 468 | size_t transport_overhead_bytes_per_packet) { |
| 469 | if (transport_overhead_bytes_per_packet >= kMaxOverheadBytes) { |
| 470 | RTC_LOG(LS_ERROR) << "Transport overhead exceeds " << kMaxOverheadBytes; |
| 471 | return; |
| 472 | } |
| 473 | |
Mirko Bonadei | e7bc3a3 | 2020-01-29 18:45:00 | [diff] [blame] | 474 | pacer()->SetTransportOverhead( |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 475 | DataSize::Bytes(transport_overhead_bytes_per_packet)); |
Mirko Bonadei | e7bc3a3 | 2020-01-29 18:45:00 | [diff] [blame] | 476 | |
Stefan Holmer | 64be7fa | 2018-10-04 13:21:55 | [diff] [blame] | 477 | // TODO(holmer): Call AudioRtpSenders when they have been moved to |
| 478 | // RtpTransportControllerSend. |
| 479 | for (auto& rtp_video_sender : video_rtp_senders_) { |
| 480 | rtp_video_sender->OnTransportOverheadChanged( |
| 481 | transport_overhead_bytes_per_packet); |
| 482 | } |
| 483 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 484 | |
Erik Språng | aa59eca | 2019-07-24 12:52:55 | [diff] [blame] | 485 | void RtpTransportControllerSend::AccountForAudioPacketsInPacedSender( |
| 486 | bool account_for_audio) { |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 487 | pacer()->SetAccountForAudioPackets(account_for_audio); |
Erik Språng | aa59eca | 2019-07-24 12:52:55 | [diff] [blame] | 488 | } |
| 489 | |
Sebastian Jansson | c3eb9fd | 2020-01-29 16:42:52 | [diff] [blame] | 490 | void RtpTransportControllerSend::IncludeOverheadInPacedSender() { |
| 491 | pacer()->SetIncludeOverhead(); |
| 492 | } |
| 493 | |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 494 | void RtpTransportControllerSend::OnReceivedEstimatedBitrate(uint32_t bitrate) { |
| 495 | RemoteBitrateReport msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 496 | msg.receive_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Danil Chapovalov | cad3e0e | 2020-02-17 17:46:07 | [diff] [blame] | 497 | msg.bandwidth = DataRate::BitsPerSec(bitrate); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 498 | task_queue_.PostTask([this, msg]() { |
| 499 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 500 | if (controller_) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 501 | PostUpdates(controller_->OnRemoteBitrateReport(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 502 | }); |
| 503 | } |
| 504 | |
| 505 | void RtpTransportControllerSend::OnReceivedRtcpReceiverReport( |
| 506 | const ReportBlockList& report_blocks, |
| 507 | int64_t rtt_ms, |
| 508 | int64_t now_ms) { |
| 509 | task_queue_.PostTask([this, report_blocks, now_ms]() { |
| 510 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 511 | OnReceivedRtcpReceiverReportBlocks(report_blocks, now_ms); |
| 512 | }); |
| 513 | |
| 514 | task_queue_.PostTask([this, now_ms, rtt_ms]() { |
| 515 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 516 | RoundTripTimeUpdate report; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 517 | report.receive_time = Timestamp::Millis(now_ms); |
| 518 | report.round_trip_time = TimeDelta::Millis(rtt_ms); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 519 | report.smoothed = false; |
Christoffer Rodbro | 4bd3177 | 2019-03-27 11:34:21 | [diff] [blame] | 520 | if (controller_ && !report.round_trip_time.IsZero()) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 521 | PostUpdates(controller_->OnRoundTripTimeUpdate(report)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 522 | }); |
| 523 | } |
| 524 | |
Erik Språng | 30a276b | 2019-04-23 10:00:11 | [diff] [blame] | 525 | void RtpTransportControllerSend::OnAddPacket( |
| 526 | const RtpPacketSendInfo& packet_info) { |
JT Teh | ea992f8 | 2020-01-15 18:24:20 | [diff] [blame] | 527 | feedback_demuxer_.AddPacket(packet_info); |
| 528 | |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 529 | Timestamp creation_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 530 | task_queue_.PostTask([this, packet_info, creation_time]() { |
| 531 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 532 | transport_feedback_adapter_.AddPacket( |
| 533 | packet_info, |
| 534 | send_side_bwe_with_overhead_ ? transport_overhead_bytes_per_packet_ : 0, |
| 535 | creation_time); |
| 536 | }); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 537 | } |
| 538 | |
| 539 | void RtpTransportControllerSend::OnTransportFeedback( |
| 540 | const rtcp::TransportFeedback& feedback) { |
JT Teh | ea992f8 | 2020-01-15 18:24:20 | [diff] [blame] | 541 | feedback_demuxer_.OnTransportFeedback(feedback); |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 542 | auto feedback_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 658f181 | 2020-01-16 09:59:28 | [diff] [blame] | 543 | task_queue_.PostTask([this, feedback, feedback_time]() { |
| 544 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 545 | absl::optional<TransportPacketsFeedback> feedback_msg = |
| 546 | transport_feedback_adapter_.ProcessTransportFeedback(feedback, |
| 547 | feedback_time); |
| 548 | if (feedback_msg && controller_) { |
| 549 | PostUpdates(controller_->OnTransportPacketsFeedback(*feedback_msg)); |
| 550 | } |
| 551 | pacer()->UpdateOutstandingData( |
| 552 | transport_feedback_adapter_.GetOutstandingData()); |
| 553 | }); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 554 | } |
| 555 | |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 556 | void RtpTransportControllerSend::OnRemoteNetworkEstimate( |
| 557 | NetworkStateEstimate estimate) { |
Sebastian Jansson | 0a5ed89 | 2019-09-18 13:37:31 | [diff] [blame] | 558 | if (event_log_) { |
| 559 | event_log_->Log(std::make_unique<RtcEventRemoteEstimate>( |
| 560 | estimate.link_capacity_lower, estimate.link_capacity_upper)); |
| 561 | } |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 562 | estimate.update_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 563 | task_queue_.PostTask([this, estimate] { |
| 564 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 565 | if (controller_) |
Danil Chapovalov | e34fb87 | 2019-10-21 08:51:08 | [diff] [blame] | 566 | PostUpdates(controller_->OnNetworkStateEstimate(estimate)); |
Sebastian Jansson | e1795f4 | 2019-07-24 09:38:03 | [diff] [blame] | 567 | }); |
| 568 | } |
| 569 | |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 570 | void RtpTransportControllerSend::MaybeCreateControllers() { |
| 571 | RTC_DCHECK(!controller_); |
| 572 | RTC_DCHECK(!control_handler_); |
| 573 | |
| 574 | if (!network_available_ || !observer_) |
| 575 | return; |
Mirko Bonadei | 317a1f0 | 2019-09-17 15:06:18 | [diff] [blame] | 576 | control_handler_ = std::make_unique<CongestionControlHandler>(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 577 | |
| 578 | initial_config_.constraints.at_time = |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 579 | Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 580 | initial_config_.stream_based_config = streams_config_; |
| 581 | |
| 582 | // TODO(srte): Use fallback controller if no feedback is available. |
| 583 | if (controller_factory_override_) { |
| 584 | RTC_LOG(LS_INFO) << "Creating overridden congestion controller"; |
| 585 | controller_ = controller_factory_override_->Create(initial_config_); |
| 586 | process_interval_ = controller_factory_override_->GetProcessInterval(); |
| 587 | } else { |
| 588 | RTC_LOG(LS_INFO) << "Creating fallback congestion controller"; |
| 589 | controller_ = controller_factory_fallback_->Create(initial_config_); |
| 590 | process_interval_ = controller_factory_fallback_->GetProcessInterval(); |
| 591 | } |
| 592 | UpdateControllerWithTimeInterval(); |
| 593 | StartProcessPeriodicTasks(); |
| 594 | } |
| 595 | |
| 596 | void RtpTransportControllerSend::UpdateInitialConstraints( |
| 597 | TargetRateConstraints new_contraints) { |
| 598 | if (!new_contraints.starting_rate) |
| 599 | new_contraints.starting_rate = initial_config_.constraints.starting_rate; |
| 600 | RTC_DCHECK(new_contraints.starting_rate); |
| 601 | initial_config_.constraints = new_contraints; |
| 602 | } |
| 603 | |
| 604 | void RtpTransportControllerSend::StartProcessPeriodicTasks() { |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 605 | if (!pacer_queue_update_task_.Running()) { |
| 606 | pacer_queue_update_task_ = RepeatingTaskHandle::DelayedStart( |
Danil Chapovalov | 4423c36 | 2019-03-06 17:41:39 | [diff] [blame] | 607 | task_queue_.Get(), kPacerQueueUpdateInterval, [this]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 608 | RTC_DCHECK_RUN_ON(&task_queue_); |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 609 | TimeDelta expected_queue_time = pacer()->ExpectedQueueTime(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 610 | control_handler_->SetPacerQueue(expected_queue_time); |
| 611 | UpdateControlState(); |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 612 | return kPacerQueueUpdateInterval; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 613 | }); |
| 614 | } |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 615 | controller_task_.Stop(); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 616 | if (process_interval_.IsFinite()) { |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 617 | controller_task_ = RepeatingTaskHandle::DelayedStart( |
Danil Chapovalov | 4423c36 | 2019-03-06 17:41:39 | [diff] [blame] | 618 | task_queue_.Get(), process_interval_, [this]() { |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 619 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 620 | UpdateControllerWithTimeInterval(); |
Sebastian Jansson | ecb6897 | 2019-01-18 09:30:54 | [diff] [blame] | 621 | return process_interval_; |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 622 | }); |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | void RtpTransportControllerSend::UpdateControllerWithTimeInterval() { |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 627 | RTC_DCHECK(controller_); |
| 628 | ProcessInterval msg; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 629 | msg.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Christoffer Rodbro | c610e26 | 2019-01-08 09:49:19 | [diff] [blame] | 630 | if (add_pacing_to_cwin_) |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 631 | msg.pacer_queue = pacer()->QueueSizeData(); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 632 | PostUpdates(controller_->OnProcessInterval(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 633 | } |
| 634 | |
| 635 | void RtpTransportControllerSend::UpdateStreamsConfig() { |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 636 | streams_config_.at_time = Timestamp::Millis(clock_->TimeInMilliseconds()); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 637 | if (controller_) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 638 | PostUpdates(controller_->OnStreamsConfig(streams_config_)); |
| 639 | } |
| 640 | |
| 641 | void RtpTransportControllerSend::PostUpdates(NetworkControlUpdate update) { |
| 642 | if (update.congestion_window) { |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 643 | pacer()->SetCongestionWindow(*update.congestion_window); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 644 | } |
| 645 | if (update.pacer_config) { |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 646 | pacer()->SetPacingRates(update.pacer_config->data_rate(), |
| 647 | update.pacer_config->pad_rate()); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 648 | } |
| 649 | for (const auto& probe : update.probe_cluster_configs) { |
Erik Språng | 425d6aa | 2019-07-29 14:38:27 | [diff] [blame] | 650 | pacer()->CreateProbeCluster(probe.target_data_rate, probe.id); |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 651 | } |
| 652 | if (update.target_rate) { |
| 653 | control_handler_->SetTargetRate(*update.target_rate); |
| 654 | UpdateControlState(); |
| 655 | } |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 656 | } |
| 657 | |
| 658 | void RtpTransportControllerSend::OnReceivedRtcpReceiverReportBlocks( |
| 659 | const ReportBlockList& report_blocks, |
| 660 | int64_t now_ms) { |
| 661 | if (report_blocks.empty()) |
| 662 | return; |
| 663 | |
| 664 | int total_packets_lost_delta = 0; |
| 665 | int total_packets_delta = 0; |
| 666 | |
| 667 | // Compute the packet loss from all report blocks. |
| 668 | for (const RTCPReportBlock& report_block : report_blocks) { |
| 669 | auto it = last_report_blocks_.find(report_block.source_ssrc); |
| 670 | if (it != last_report_blocks_.end()) { |
| 671 | auto number_of_packets = report_block.extended_highest_sequence_number - |
| 672 | it->second.extended_highest_sequence_number; |
| 673 | total_packets_delta += number_of_packets; |
| 674 | auto lost_delta = report_block.packets_lost - it->second.packets_lost; |
| 675 | total_packets_lost_delta += lost_delta; |
| 676 | } |
| 677 | last_report_blocks_[report_block.source_ssrc] = report_block; |
| 678 | } |
| 679 | // Can only compute delta if there has been previous blocks to compare to. If |
| 680 | // not, total_packets_delta will be unchanged and there's nothing more to do. |
| 681 | if (!total_packets_delta) |
| 682 | return; |
| 683 | int packets_received_delta = total_packets_delta - total_packets_lost_delta; |
| 684 | // To detect lost packets, at least one packet has to be received. This check |
| 685 | // is needed to avoid bandwith detection update in |
| 686 | // VideoSendStreamTest.SuspendBelowMinBitrate |
| 687 | |
| 688 | if (packets_received_delta < 1) |
| 689 | return; |
Danil Chapovalov | 0c626af | 2020-02-10 10:16:00 | [diff] [blame] | 690 | Timestamp now = Timestamp::Millis(now_ms); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 691 | TransportLossReport msg; |
| 692 | msg.packets_lost_delta = total_packets_lost_delta; |
| 693 | msg.packets_received_delta = packets_received_delta; |
| 694 | msg.receive_time = now; |
| 695 | msg.start_time = last_report_block_time_; |
| 696 | msg.end_time = now; |
| 697 | if (controller_) |
Sebastian Jansson | 1618095 | 2018-12-12 15:49:10 | [diff] [blame] | 698 | PostUpdates(controller_->OnTransportLossReport(msg)); |
Sebastian Jansson | 87609be | 2018-12-05 16:35:35 | [diff] [blame] | 699 | last_report_block_time_ = now; |
| 700 | } |
| 701 | |
nisse | cae45d0 | 2017-04-24 12:53:20 | [diff] [blame] | 702 | } // namespace webrtc |