Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018 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 | */ |
| 10 | |
Jonas Olsson | a4d8737 | 2019-07-05 19:08:33 +0200 | [diff] [blame] | 11 | #include "call/degraded_call.h" |
| 12 | |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 13 | #include <memory> |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 14 | #include <utility> |
| 15 | |
Yves Gerey | 3e70781 | 2018-11-28 16:47:49 +0100 | [diff] [blame] | 16 | #include "rtc_base/location.h" |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 17 | |
| 18 | namespace webrtc { |
Sebastian Jansson | 836fee1 | 2019-02-08 16:08:10 +0100 | [diff] [blame] | 19 | |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 20 | DegradedCall::FakeNetworkPipeOnTaskQueue::FakeNetworkPipeOnTaskQueue( |
| 21 | TaskQueueFactory* task_queue_factory, |
Sebastian Jansson | 836fee1 | 2019-02-08 16:08:10 +0100 | [diff] [blame] | 22 | Clock* clock, |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 23 | std::unique_ptr<NetworkBehaviorInterface> network_behavior) |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 24 | : clock_(clock), |
| 25 | task_queue_(task_queue_factory->CreateTaskQueue( |
| 26 | "DegradedSendQueue", |
| 27 | TaskQueueFactory::Priority::NORMAL)), |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 28 | pipe_(clock, std::move(network_behavior)) {} |
Sebastian Jansson | 836fee1 | 2019-02-08 16:08:10 +0100 | [diff] [blame] | 29 | |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 30 | void DegradedCall::FakeNetworkPipeOnTaskQueue::SendRtp( |
| 31 | const uint8_t* packet, |
| 32 | size_t length, |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 33 | const PacketOptions& options, |
| 34 | Transport* transport) { |
| 35 | pipe_.SendRtp(packet, length, options, transport); |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 36 | Process(); |
Sebastian Jansson | 836fee1 | 2019-02-08 16:08:10 +0100 | [diff] [blame] | 37 | } |
| 38 | |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 39 | void DegradedCall::FakeNetworkPipeOnTaskQueue::SendRtcp(const uint8_t* packet, |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 40 | size_t length, |
| 41 | Transport* transport) { |
| 42 | pipe_.SendRtcp(packet, length, transport); |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 43 | Process(); |
Sebastian Jansson | 836fee1 | 2019-02-08 16:08:10 +0100 | [diff] [blame] | 44 | } |
| 45 | |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 46 | void DegradedCall::FakeNetworkPipeOnTaskQueue::AddActiveTransport( |
| 47 | Transport* transport) { |
| 48 | pipe_.AddActiveTransport(transport); |
| 49 | } |
| 50 | |
| 51 | void DegradedCall::FakeNetworkPipeOnTaskQueue::RemoveActiveTransport( |
| 52 | Transport* transport) { |
| 53 | pipe_.RemoveActiveTransport(transport); |
| 54 | } |
| 55 | |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 56 | bool DegradedCall::FakeNetworkPipeOnTaskQueue::Process() { |
Sebastian Jansson | 836fee1 | 2019-02-08 16:08:10 +0100 | [diff] [blame] | 57 | pipe_.Process(); |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 58 | auto time_to_next = pipe_.TimeUntilNextProcess(); |
| 59 | if (!time_to_next) { |
| 60 | // Packet was probably sent immediately. |
| 61 | return false; |
| 62 | } |
| 63 | |
| 64 | task_queue_.PostTask([this, time_to_next]() { |
| 65 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 66 | int64_t next_process_time = *time_to_next + clock_->TimeInMilliseconds(); |
| 67 | if (!next_process_ms_ || next_process_time < *next_process_ms_) { |
| 68 | next_process_ms_ = next_process_time; |
| 69 | task_queue_.PostDelayedTask( |
| 70 | [this]() { |
| 71 | RTC_DCHECK_RUN_ON(&task_queue_); |
| 72 | if (!Process()) { |
| 73 | next_process_ms_.reset(); |
| 74 | } |
| 75 | }, |
| 76 | *time_to_next); |
| 77 | } |
| 78 | }); |
| 79 | |
| 80 | return true; |
Sebastian Jansson | 836fee1 | 2019-02-08 16:08:10 +0100 | [diff] [blame] | 81 | } |
| 82 | |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 83 | DegradedCall::FakeNetworkPipeTransportAdapter::FakeNetworkPipeTransportAdapter( |
| 84 | FakeNetworkPipeOnTaskQueue* fake_network, |
| 85 | Call* call, |
| 86 | Clock* clock, |
| 87 | Transport* real_transport) |
| 88 | : network_pipe_(fake_network), |
| 89 | call_(call), |
| 90 | clock_(clock), |
| 91 | real_transport_(real_transport) { |
| 92 | network_pipe_->AddActiveTransport(real_transport); |
| 93 | } |
| 94 | |
| 95 | DegradedCall::FakeNetworkPipeTransportAdapter:: |
| 96 | ~FakeNetworkPipeTransportAdapter() { |
| 97 | network_pipe_->RemoveActiveTransport(real_transport_); |
| 98 | } |
| 99 | |
| 100 | bool DegradedCall::FakeNetworkPipeTransportAdapter::SendRtp( |
| 101 | const uint8_t* packet, |
| 102 | size_t length, |
| 103 | const PacketOptions& options) { |
| 104 | // A call here comes from the RTP stack (probably pacer). We intercept it and |
| 105 | // put it in the fake network pipe instead, but report to Call that is has |
| 106 | // been sent, so that the bandwidth estimator sees the delay we add. |
| 107 | network_pipe_->SendRtp(packet, length, options, real_transport_); |
| 108 | if (options.packet_id != -1) { |
| 109 | rtc::SentPacket sent_packet; |
| 110 | sent_packet.packet_id = options.packet_id; |
| 111 | sent_packet.send_time_ms = clock_->TimeInMilliseconds(); |
| 112 | sent_packet.info.included_in_feedback = options.included_in_feedback; |
| 113 | sent_packet.info.included_in_allocation = options.included_in_allocation; |
| 114 | sent_packet.info.packet_size_bytes = length; |
| 115 | sent_packet.info.packet_type = rtc::PacketType::kData; |
| 116 | call_->OnSentPacket(sent_packet); |
| 117 | } |
| 118 | return true; |
| 119 | } |
| 120 | |
| 121 | bool DegradedCall::FakeNetworkPipeTransportAdapter::SendRtcp( |
| 122 | const uint8_t* packet, |
| 123 | size_t length) { |
| 124 | network_pipe_->SendRtcp(packet, length, real_transport_); |
| 125 | return true; |
| 126 | } |
| 127 | |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 128 | DegradedCall::DegradedCall( |
| 129 | std::unique_ptr<Call> call, |
Artem Titov | 75e3647 | 2018-10-08 12:28:56 +0200 | [diff] [blame] | 130 | absl::optional<BuiltInNetworkBehaviorConfig> send_config, |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 131 | absl::optional<BuiltInNetworkBehaviorConfig> receive_config, |
| 132 | TaskQueueFactory* task_queue_factory) |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 133 | : clock_(Clock::GetRealTimeClock()), |
| 134 | call_(std::move(call)), |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 135 | task_queue_factory_(task_queue_factory), |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 136 | send_config_(send_config), |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 137 | send_simulated_network_(nullptr), |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 138 | receive_config_(receive_config) { |
| 139 | if (receive_config_) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 140 | auto network = std::make_unique<SimulatedNetwork>(*receive_config_); |
Artem Titov | 3229d65 | 2018-08-17 13:00:54 +0200 | [diff] [blame] | 141 | receive_simulated_network_ = network.get(); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 142 | receive_pipe_ = |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 143 | std::make_unique<webrtc::FakeNetworkPipe>(clock_, std::move(network)); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 144 | receive_pipe_->SetReceiver(call_->Receiver()); |
| 145 | } |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 146 | if (send_config_) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 147 | auto network = std::make_unique<SimulatedNetwork>(*send_config_); |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 148 | send_simulated_network_ = network.get(); |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 149 | send_pipe_ = std::make_unique<FakeNetworkPipeOnTaskQueue>( |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 150 | task_queue_factory_, clock_, std::move(network)); |
| 151 | } |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 152 | } |
| 153 | |
Erik Språng | c648819 | 2019-08-06 15:54:23 +0200 | [diff] [blame] | 154 | DegradedCall::~DegradedCall() = default; |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 155 | |
| 156 | AudioSendStream* DegradedCall::CreateAudioSendStream( |
| 157 | const AudioSendStream::Config& config) { |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 158 | if (send_config_) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 159 | auto transport_adapter = std::make_unique<FakeNetworkPipeTransportAdapter>( |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 160 | send_pipe_.get(), call_.get(), clock_, config.send_transport); |
| 161 | AudioSendStream::Config degrade_config = config; |
| 162 | degrade_config.send_transport = transport_adapter.get(); |
| 163 | AudioSendStream* send_stream = call_->CreateAudioSendStream(degrade_config); |
| 164 | if (send_stream) { |
| 165 | audio_send_transport_adapters_[send_stream] = |
| 166 | std::move(transport_adapter); |
| 167 | } |
| 168 | return send_stream; |
| 169 | } |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 170 | return call_->CreateAudioSendStream(config); |
| 171 | } |
| 172 | |
| 173 | void DegradedCall::DestroyAudioSendStream(AudioSendStream* send_stream) { |
| 174 | call_->DestroyAudioSendStream(send_stream); |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 175 | audio_send_transport_adapters_.erase(send_stream); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 176 | } |
| 177 | |
| 178 | AudioReceiveStream* DegradedCall::CreateAudioReceiveStream( |
| 179 | const AudioReceiveStream::Config& config) { |
| 180 | return call_->CreateAudioReceiveStream(config); |
| 181 | } |
| 182 | |
| 183 | void DegradedCall::DestroyAudioReceiveStream( |
| 184 | AudioReceiveStream* receive_stream) { |
| 185 | call_->DestroyAudioReceiveStream(receive_stream); |
| 186 | } |
| 187 | |
| 188 | VideoSendStream* DegradedCall::CreateVideoSendStream( |
| 189 | VideoSendStream::Config config, |
| 190 | VideoEncoderConfig encoder_config) { |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 191 | std::unique_ptr<FakeNetworkPipeTransportAdapter> transport_adapter; |
| 192 | if (send_config_) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 193 | transport_adapter = std::make_unique<FakeNetworkPipeTransportAdapter>( |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 194 | send_pipe_.get(), call_.get(), clock_, config.send_transport); |
| 195 | config.send_transport = transport_adapter.get(); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 196 | } |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 197 | VideoSendStream* send_stream = call_->CreateVideoSendStream( |
| 198 | std::move(config), std::move(encoder_config)); |
| 199 | if (send_stream && transport_adapter) { |
| 200 | video_send_transport_adapters_[send_stream] = std::move(transport_adapter); |
| 201 | } |
| 202 | return send_stream; |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 203 | } |
| 204 | |
| 205 | VideoSendStream* DegradedCall::CreateVideoSendStream( |
| 206 | VideoSendStream::Config config, |
| 207 | VideoEncoderConfig encoder_config, |
| 208 | std::unique_ptr<FecController> fec_controller) { |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 209 | std::unique_ptr<FakeNetworkPipeTransportAdapter> transport_adapter; |
| 210 | if (send_config_) { |
Mirko Bonadei | 317a1f0 | 2019-09-17 17:06:18 +0200 | [diff] [blame] | 211 | transport_adapter = std::make_unique<FakeNetworkPipeTransportAdapter>( |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 212 | send_pipe_.get(), call_.get(), clock_, config.send_transport); |
| 213 | config.send_transport = transport_adapter.get(); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 214 | } |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 215 | VideoSendStream* send_stream = call_->CreateVideoSendStream( |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 216 | std::move(config), std::move(encoder_config), std::move(fec_controller)); |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 217 | if (send_stream && transport_adapter) { |
| 218 | video_send_transport_adapters_[send_stream] = std::move(transport_adapter); |
| 219 | } |
| 220 | return send_stream; |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | void DegradedCall::DestroyVideoSendStream(VideoSendStream* send_stream) { |
Erik Språng | eef09fc | 2018-03-16 10:47:16 +0100 | [diff] [blame] | 224 | call_->DestroyVideoSendStream(send_stream); |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 225 | video_send_transport_adapters_.erase(send_stream); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | VideoReceiveStream* DegradedCall::CreateVideoReceiveStream( |
| 229 | VideoReceiveStream::Config configuration) { |
| 230 | return call_->CreateVideoReceiveStream(std::move(configuration)); |
| 231 | } |
| 232 | |
| 233 | void DegradedCall::DestroyVideoReceiveStream( |
| 234 | VideoReceiveStream* receive_stream) { |
| 235 | call_->DestroyVideoReceiveStream(receive_stream); |
| 236 | } |
| 237 | |
| 238 | FlexfecReceiveStream* DegradedCall::CreateFlexfecReceiveStream( |
| 239 | const FlexfecReceiveStream::Config& config) { |
| 240 | return call_->CreateFlexfecReceiveStream(config); |
| 241 | } |
| 242 | |
| 243 | void DegradedCall::DestroyFlexfecReceiveStream( |
| 244 | FlexfecReceiveStream* receive_stream) { |
| 245 | call_->DestroyFlexfecReceiveStream(receive_stream); |
| 246 | } |
| 247 | |
| 248 | PacketReceiver* DegradedCall::Receiver() { |
| 249 | if (receive_config_) { |
| 250 | return this; |
| 251 | } |
| 252 | return call_->Receiver(); |
| 253 | } |
| 254 | |
| 255 | RtpTransportControllerSendInterface* |
| 256 | DegradedCall::GetTransportControllerSend() { |
| 257 | return call_->GetTransportControllerSend(); |
| 258 | } |
| 259 | |
| 260 | Call::Stats DegradedCall::GetStats() const { |
| 261 | return call_->GetStats(); |
| 262 | } |
| 263 | |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 264 | void DegradedCall::SignalChannelNetworkState(MediaType media, |
| 265 | NetworkState state) { |
| 266 | call_->SignalChannelNetworkState(media, state); |
| 267 | } |
| 268 | |
Stefan Holmer | 64be7fa | 2018-10-04 15:21:55 +0200 | [diff] [blame] | 269 | void DegradedCall::OnAudioTransportOverheadChanged( |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 270 | int transport_overhead_per_packet) { |
Stefan Holmer | 64be7fa | 2018-10-04 15:21:55 +0200 | [diff] [blame] | 271 | call_->OnAudioTransportOverheadChanged(transport_overhead_per_packet); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | void DegradedCall::OnSentPacket(const rtc::SentPacket& sent_packet) { |
| 275 | if (send_config_) { |
| 276 | // If we have a degraded send-transport, we have already notified call |
| 277 | // about the supposed network send time. Discard the actual network send |
| 278 | // time in order to properly fool the BWE. |
| 279 | return; |
| 280 | } |
| 281 | call_->OnSentPacket(sent_packet); |
| 282 | } |
| 283 | |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 284 | PacketReceiver::DeliveryStatus DegradedCall::DeliverPacket( |
| 285 | MediaType media_type, |
| 286 | rtc::CopyOnWriteBuffer packet, |
Niels Möller | 7008287 | 2018-08-07 11:03:12 +0200 | [diff] [blame] | 287 | int64_t packet_time_us) { |
| 288 | PacketReceiver::DeliveryStatus status = receive_pipe_->DeliverPacket( |
| 289 | media_type, std::move(packet), packet_time_us); |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 290 | // This is not optimal, but there are many places where there are thread |
| 291 | // checks that fail if we're not using the worker thread call into this |
| 292 | // method. If we want to fix this we probably need a task queue to do handover |
Erik Språng | eea605d | 2019-08-12 15:56:51 +0200 | [diff] [blame] | 293 | // of all overriden methods, which feels like overkill for the current use |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 294 | // case. |
| 295 | // By just having this thread call out via the Process() method we work around |
| 296 | // that, with the tradeoff that a non-zero delay may become a little larger |
| 297 | // than anticipated at very low packet rates. |
| 298 | receive_pipe_->Process(); |
| 299 | return status; |
| 300 | } |
Erik Språng | 0970851 | 2018-03-14 15:16:50 +0100 | [diff] [blame] | 301 | } // namespace webrtc |