Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2012 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 | |
| 11 | #include "audio/channel_send.h" |
| 12 | |
| 13 | #include <algorithm> |
| 14 | #include <map> |
| 15 | #include <memory> |
| 16 | #include <string> |
| 17 | #include <utility> |
| 18 | #include <vector> |
| 19 | |
| 20 | #include "absl/memory/memory.h" |
| 21 | #include "api/array_view.h" |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 22 | #include "api/call/transport.h" |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 23 | #include "api/crypto/frame_encryptor_interface.h" |
Danil Chapovalov | 83bbe91 | 2019-08-07 12:24:53 +0200 | [diff] [blame] | 24 | #include "api/rtc_event_log/rtc_event_log.h" |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 25 | #include "audio/utility/audio_frame_operations.h" |
| 26 | #include "call/rtp_transport_controller_send_interface.h" |
| 27 | #include "logging/rtc_event_log/events/rtc_event_audio_playout.h" |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 28 | #include "modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor_config.h" |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 29 | #include "modules/audio_coding/include/audio_coding_module.h" |
| 30 | #include "modules/audio_processing/rms_level.h" |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 31 | #include "modules/pacing/packet_router.h" |
| 32 | #include "modules/utility/include/process_thread.h" |
| 33 | #include "rtc_base/checks.h" |
Yves Gerey | 2e00abc | 2018-10-05 15:39:24 +0200 | [diff] [blame] | 34 | #include "rtc_base/event.h" |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 35 | #include "rtc_base/format_macros.h" |
| 36 | #include "rtc_base/location.h" |
| 37 | #include "rtc_base/logging.h" |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 38 | #include "rtc_base/numerics/safe_conversions.h" |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 39 | #include "rtc_base/race_checker.h" |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 40 | #include "rtc_base/rate_limiter.h" |
| 41 | #include "rtc_base/task_queue.h" |
| 42 | #include "rtc_base/thread_checker.h" |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 43 | #include "rtc_base/time_utils.h" |
Sebastian Jansson | 977b335 | 2019-03-04 17:43:34 +0100 | [diff] [blame] | 44 | #include "system_wrappers/include/clock.h" |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 45 | #include "system_wrappers/include/field_trial.h" |
| 46 | #include "system_wrappers/include/metrics.h" |
| 47 | |
| 48 | namespace webrtc { |
| 49 | namespace voe { |
| 50 | |
| 51 | namespace { |
| 52 | |
| 53 | constexpr int64_t kMaxRetransmissionWindowMs = 1000; |
| 54 | constexpr int64_t kMinRetransmissionWindowMs = 30; |
| 55 | |
Bjorn A Mellem | da4f093 | 2019-07-30 08:34:03 -0700 | [diff] [blame] | 56 | // Field trial which controls whether to report standard-compliant bytes |
| 57 | // sent/received per stream. If enabled, padding and headers are not included |
| 58 | // in bytes sent or received. |
| 59 | constexpr char kUseStandardBytesStats[] = "WebRTC-UseStandardBytesStats"; |
| 60 | |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 61 | MediaTransportEncodedAudioFrame::FrameType |
Niels Möller | 87e2d78 | 2019-03-07 10:18:23 +0100 | [diff] [blame] | 62 | MediaTransportFrameTypeForWebrtcFrameType(webrtc::AudioFrameType frame_type) { |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 63 | switch (frame_type) { |
Niels Möller | c936cb6 | 2019-03-19 14:10:16 +0100 | [diff] [blame] | 64 | case AudioFrameType::kAudioFrameSpeech: |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 65 | return MediaTransportEncodedAudioFrame::FrameType::kSpeech; |
| 66 | break; |
| 67 | |
Niels Möller | c936cb6 | 2019-03-19 14:10:16 +0100 | [diff] [blame] | 68 | case AudioFrameType::kAudioFrameCN: |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 69 | return MediaTransportEncodedAudioFrame::FrameType:: |
| 70 | kDiscontinuousTransmission; |
| 71 | break; |
| 72 | |
| 73 | default: |
Niels Möller | c936cb6 | 2019-03-19 14:10:16 +0100 | [diff] [blame] | 74 | RTC_CHECK(false) << "Unexpected frame type=" |
| 75 | << static_cast<int>(frame_type); |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 76 | break; |
| 77 | } |
| 78 | } |
| 79 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 80 | class RtpPacketSenderProxy; |
| 81 | class TransportFeedbackProxy; |
| 82 | class TransportSequenceNumberProxy; |
| 83 | class VoERtcpObserver; |
| 84 | |
Benjamin Wright | 17b050f | 2019-03-13 17:35:46 -0700 | [diff] [blame] | 85 | class ChannelSend : public ChannelSendInterface, |
| 86 | public AudioPacketizationCallback, // receive encoded |
| 87 | // packets from the ACM |
| 88 | public TargetTransferRateObserver { |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 89 | public: |
| 90 | // TODO(nisse): Make OnUplinkPacketLossRate public, and delete friend |
| 91 | // declaration. |
| 92 | friend class VoERtcpObserver; |
| 93 | |
Sebastian Jansson | 977b335 | 2019-03-04 17:43:34 +0100 | [diff] [blame] | 94 | ChannelSend(Clock* clock, |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 95 | TaskQueueFactory* task_queue_factory, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 96 | ProcessThread* module_process_thread, |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 97 | const MediaTransportConfig& media_transport_config, |
Anton Sukhanov | 626015d | 2019-02-04 15:16:06 -0800 | [diff] [blame] | 98 | OverheadObserver* overhead_observer, |
Niels Möller | e977199 | 2018-11-26 10:55:07 +0100 | [diff] [blame] | 99 | Transport* rtp_transport, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 100 | RtcpRttStats* rtcp_rtt_stats, |
| 101 | RtcEventLog* rtc_event_log, |
| 102 | FrameEncryptorInterface* frame_encryptor, |
| 103 | const webrtc::CryptoOptions& crypto_options, |
| 104 | bool extmap_allow_mixed, |
Erik Språng | 4c2c412 | 2019-07-11 15:20:15 +0200 | [diff] [blame] | 105 | int rtcp_report_interval_ms, |
| 106 | uint32_t ssrc); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 107 | |
| 108 | ~ChannelSend() override; |
| 109 | |
| 110 | // Send using this encoder, with this payload type. |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 111 | void SetEncoder(int payload_type, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 112 | std::unique_ptr<AudioEncoder> encoder) override; |
| 113 | void ModifyEncoder(rtc::FunctionView<void(std::unique_ptr<AudioEncoder>*)> |
| 114 | modifier) override; |
Sebastian Jansson | 14a7cf9 | 2019-02-13 15:11:42 +0100 | [diff] [blame] | 115 | void CallEncoder(rtc::FunctionView<void(AudioEncoder*)> modifier) override; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 116 | |
| 117 | // API methods |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 118 | void StartSend() override; |
| 119 | void StopSend() override; |
| 120 | |
| 121 | // Codecs |
Sebastian Jansson | 254d869 | 2018-11-21 19:19:00 +0100 | [diff] [blame] | 122 | void OnBitrateAllocation(BitrateAllocationUpdate update) override; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 123 | int GetBitrate() const override; |
| 124 | |
| 125 | // Network |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 126 | void ReceivedRTCPPacket(const uint8_t* data, size_t length) override; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 127 | |
| 128 | // Muting, Volume and Level. |
| 129 | void SetInputMute(bool enable) override; |
| 130 | |
| 131 | // Stats. |
| 132 | ANAStats GetANAStatistics() const override; |
| 133 | |
| 134 | // Used by AudioSendStream. |
| 135 | RtpRtcp* GetRtpRtcp() const override; |
| 136 | |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 137 | void RegisterCngPayloadType(int payload_type, int payload_frequency) override; |
| 138 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 139 | // DTMF. |
| 140 | bool SendTelephoneEventOutband(int event, int duration_ms) override; |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 141 | void SetSendTelephoneEventPayloadType(int payload_type, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 142 | int payload_frequency) override; |
| 143 | |
| 144 | // RTP+RTCP |
Amit Hilbuch | 77938e6 | 2018-12-21 09:23:38 -0800 | [diff] [blame] | 145 | void SetRid(const std::string& rid, |
| 146 | int extension_id, |
| 147 | int repaired_extension_id) override; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 148 | void SetMid(const std::string& mid, int extension_id) override; |
| 149 | void SetExtmapAllowMixed(bool extmap_allow_mixed) override; |
| 150 | void SetSendAudioLevelIndicationStatus(bool enable, int id) override; |
| 151 | void EnableSendTransportSequenceNumber(int id) override; |
| 152 | |
| 153 | void RegisterSenderCongestionControlObjects( |
| 154 | RtpTransportControllerSendInterface* transport, |
| 155 | RtcpBandwidthObserver* bandwidth_observer) override; |
| 156 | void ResetSenderCongestionControlObjects() override; |
| 157 | void SetRTCP_CNAME(absl::string_view c_name) override; |
| 158 | std::vector<ReportBlock> GetRemoteRTCPReportBlocks() const override; |
| 159 | CallSendStatistics GetRTCPStatistics() const override; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 160 | |
| 161 | // ProcessAndEncodeAudio() posts a task on the shared encoder task queue, |
| 162 | // which in turn calls (on the queue) ProcessAndEncodeAudioOnTaskQueue() where |
| 163 | // the actual processing of the audio takes place. The processing mainly |
| 164 | // consists of encoding and preparing the result for sending by adding it to a |
| 165 | // send queue. |
| 166 | // The main reason for using a task queue here is to release the native, |
| 167 | // OS-specific, audio capture thread as soon as possible to ensure that it |
| 168 | // can go back to sleep and be prepared to deliver an new captured audio |
| 169 | // packet. |
| 170 | void ProcessAndEncodeAudio(std::unique_ptr<AudioFrame> audio_frame) override; |
| 171 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 172 | // The existence of this function alongside OnUplinkPacketLossRate is |
| 173 | // a compromise. We want the encoder to be agnostic of the PLR source, but |
| 174 | // we also don't want it to receive conflicting information from TWCC and |
| 175 | // from RTCP-XR. |
| 176 | void OnTwccBasedUplinkPacketLossRate(float packet_loss_rate) override; |
| 177 | |
| 178 | void OnRecoverableUplinkPacketLossRate( |
| 179 | float recoverable_packet_loss_rate) override; |
| 180 | |
| 181 | int64_t GetRTT() const override; |
| 182 | |
| 183 | // E2EE Custom Audio Frame Encryption |
| 184 | void SetFrameEncryptor( |
| 185 | rtc::scoped_refptr<FrameEncryptorInterface> frame_encryptor) override; |
| 186 | |
| 187 | private: |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 188 | // From AudioPacketizationCallback in the ACM |
Niels Möller | 87e2d78 | 2019-03-07 10:18:23 +0100 | [diff] [blame] | 189 | int32_t SendData(AudioFrameType frameType, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 190 | uint8_t payloadType, |
| 191 | uint32_t timeStamp, |
| 192 | const uint8_t* payloadData, |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 193 | size_t payloadSize) override; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 194 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 195 | void OnUplinkPacketLossRate(float packet_loss_rate); |
| 196 | bool InputMute() const; |
| 197 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 198 | int SetSendRtpHeaderExtension(bool enable, RTPExtensionType type, int id); |
| 199 | |
Niels Möller | 87e2d78 | 2019-03-07 10:18:23 +0100 | [diff] [blame] | 200 | int32_t SendRtpAudio(AudioFrameType frameType, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 201 | uint8_t payloadType, |
| 202 | uint32_t timeStamp, |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 203 | rtc::ArrayView<const uint8_t> payload) |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 204 | RTC_RUN_ON(encoder_queue_); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 205 | |
Niels Möller | 87e2d78 | 2019-03-07 10:18:23 +0100 | [diff] [blame] | 206 | int32_t SendMediaTransportAudio(AudioFrameType frameType, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 207 | uint8_t payloadType, |
| 208 | uint32_t timeStamp, |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 209 | rtc::ArrayView<const uint8_t> payload) |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 210 | RTC_RUN_ON(encoder_queue_); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 211 | |
| 212 | // Return media transport or nullptr if using RTP. |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 213 | MediaTransportInterface* media_transport() { |
| 214 | return media_transport_config_.media_transport; |
| 215 | } |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 216 | |
| 217 | // Called on the encoder task queue when a new input audio frame is ready |
| 218 | // for encoding. |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 219 | void ProcessAndEncodeAudioOnTaskQueue(AudioFrame* audio_input) |
| 220 | RTC_RUN_ON(encoder_queue_); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 221 | |
| 222 | void OnReceivedRtt(int64_t rtt_ms); |
| 223 | |
| 224 | void OnTargetTransferRate(TargetTransferRate) override; |
| 225 | |
| 226 | // Thread checkers document and lock usage of some methods on voe::Channel to |
| 227 | // specific threads we know about. The goal is to eventually split up |
| 228 | // voe::Channel into parts with single-threaded semantics, and thereby reduce |
| 229 | // the need for locks. |
| 230 | rtc::ThreadChecker worker_thread_checker_; |
| 231 | rtc::ThreadChecker module_process_thread_checker_; |
| 232 | // Methods accessed from audio and video threads are checked for sequential- |
| 233 | // only access. We don't necessarily own and control these threads, so thread |
| 234 | // checkers cannot be used. E.g. Chromium may transfer "ownership" from one |
| 235 | // audio thread to another, but access is still sequential. |
| 236 | rtc::RaceChecker audio_thread_race_checker_; |
| 237 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 238 | rtc::CriticalSection volume_settings_critsect_; |
| 239 | |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 240 | bool sending_ RTC_GUARDED_BY(&worker_thread_checker_) = false; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 241 | |
| 242 | RtcEventLog* const event_log_; |
| 243 | |
| 244 | std::unique_ptr<RtpRtcp> _rtpRtcpModule; |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 245 | std::unique_ptr<RTPSenderAudio> rtp_sender_audio_; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 246 | |
| 247 | std::unique_ptr<AudioCodingModule> audio_coding_; |
| 248 | uint32_t _timeStamp RTC_GUARDED_BY(encoder_queue_); |
| 249 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 250 | // uses |
Niels Möller | 985a1f3 | 2018-11-19 16:08:42 +0100 | [diff] [blame] | 251 | ProcessThread* const _moduleProcessThreadPtr; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 252 | RmsLevel rms_level_ RTC_GUARDED_BY(encoder_queue_); |
| 253 | bool input_mute_ RTC_GUARDED_BY(volume_settings_critsect_); |
| 254 | bool previous_frame_muted_ RTC_GUARDED_BY(encoder_queue_); |
| 255 | // VoeRTP_RTCP |
| 256 | // TODO(henrika): can today be accessed on the main thread and on the |
| 257 | // task queue; hence potential race. |
| 258 | bool _includeAudioLevelIndication; |
Anton Sukhanov | 626015d | 2019-02-04 15:16:06 -0800 | [diff] [blame] | 259 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 260 | // RtcpBandwidthObserver |
Niels Möller | 985a1f3 | 2018-11-19 16:08:42 +0100 | [diff] [blame] | 261 | const std::unique_ptr<VoERtcpObserver> rtcp_observer_; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 262 | |
Niels Möller | 985a1f3 | 2018-11-19 16:08:42 +0100 | [diff] [blame] | 263 | PacketRouter* packet_router_ RTC_GUARDED_BY(&worker_thread_checker_) = |
| 264 | nullptr; |
| 265 | const std::unique_ptr<TransportFeedbackProxy> feedback_observer_proxy_; |
| 266 | const std::unique_ptr<TransportSequenceNumberProxy> seq_num_allocator_proxy_; |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 267 | const std::unique_ptr<RtpPacketSenderProxy> rtp_packet_pacer_proxy_; |
Niels Möller | 985a1f3 | 2018-11-19 16:08:42 +0100 | [diff] [blame] | 268 | const std::unique_ptr<RateLimiter> retransmission_rate_limiter_; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 269 | |
| 270 | rtc::ThreadChecker construction_thread_; |
| 271 | |
| 272 | const bool use_twcc_plr_for_ana_; |
Bjorn A Mellem | da4f093 | 2019-07-30 08:34:03 -0700 | [diff] [blame] | 273 | const bool use_standard_bytes_stats_; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 274 | |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 275 | bool encoder_queue_is_active_ RTC_GUARDED_BY(encoder_queue_) = false; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 276 | |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 277 | MediaTransportConfig media_transport_config_; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 278 | int media_transport_sequence_number_ RTC_GUARDED_BY(encoder_queue_) = 0; |
| 279 | |
| 280 | rtc::CriticalSection media_transport_lock_; |
Erik Språng | 70efdde | 2019-08-21 13:36:20 +0200 | [diff] [blame^] | 281 | // Currently set to local SSRC at construction. |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 282 | uint64_t media_transport_channel_id_ RTC_GUARDED_BY(&media_transport_lock_) = |
| 283 | 0; |
| 284 | // Cache payload type and sampling frequency from most recent call to |
| 285 | // SetEncoder. Needed to set MediaTransportEncodedAudioFrame metadata, and |
| 286 | // invalidate on encoder change. |
| 287 | int media_transport_payload_type_ RTC_GUARDED_BY(&media_transport_lock_); |
| 288 | int media_transport_sampling_frequency_ |
| 289 | RTC_GUARDED_BY(&media_transport_lock_); |
| 290 | |
| 291 | // E2EE Audio Frame Encryption |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 292 | rtc::scoped_refptr<FrameEncryptorInterface> frame_encryptor_ |
| 293 | RTC_GUARDED_BY(encoder_queue_); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 294 | // E2EE Frame Encryption Options |
Niels Möller | 985a1f3 | 2018-11-19 16:08:42 +0100 | [diff] [blame] | 295 | const webrtc::CryptoOptions crypto_options_; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 296 | |
| 297 | rtc::CriticalSection bitrate_crit_section_; |
| 298 | int configured_bitrate_bps_ RTC_GUARDED_BY(bitrate_crit_section_) = 0; |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 299 | |
| 300 | // Defined last to ensure that there are no running tasks when the other |
| 301 | // members are destroyed. |
| 302 | rtc::TaskQueue encoder_queue_; |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 303 | }; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 304 | |
| 305 | const int kTelephoneEventAttenuationdB = 10; |
| 306 | |
| 307 | class TransportFeedbackProxy : public TransportFeedbackObserver { |
| 308 | public: |
| 309 | TransportFeedbackProxy() : feedback_observer_(nullptr) { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 310 | pacer_thread_.Detach(); |
| 311 | network_thread_.Detach(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 312 | } |
| 313 | |
| 314 | void SetTransportFeedbackObserver( |
| 315 | TransportFeedbackObserver* feedback_observer) { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 316 | RTC_DCHECK(thread_checker_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 317 | rtc::CritScope lock(&crit_); |
| 318 | feedback_observer_ = feedback_observer; |
| 319 | } |
| 320 | |
| 321 | // Implements TransportFeedbackObserver. |
Erik Språng | 30a276b | 2019-04-23 12:00:11 +0200 | [diff] [blame] | 322 | void OnAddPacket(const RtpPacketSendInfo& packet_info) override { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 323 | RTC_DCHECK(pacer_thread_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 324 | rtc::CritScope lock(&crit_); |
| 325 | if (feedback_observer_) |
Erik Språng | 30a276b | 2019-04-23 12:00:11 +0200 | [diff] [blame] | 326 | feedback_observer_->OnAddPacket(packet_info); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 327 | } |
| 328 | |
| 329 | void OnTransportFeedback(const rtcp::TransportFeedback& feedback) override { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 330 | RTC_DCHECK(network_thread_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 331 | rtc::CritScope lock(&crit_); |
| 332 | if (feedback_observer_) |
| 333 | feedback_observer_->OnTransportFeedback(feedback); |
| 334 | } |
| 335 | |
| 336 | private: |
| 337 | rtc::CriticalSection crit_; |
| 338 | rtc::ThreadChecker thread_checker_; |
| 339 | rtc::ThreadChecker pacer_thread_; |
| 340 | rtc::ThreadChecker network_thread_; |
| 341 | TransportFeedbackObserver* feedback_observer_ RTC_GUARDED_BY(&crit_); |
| 342 | }; |
| 343 | |
| 344 | class TransportSequenceNumberProxy : public TransportSequenceNumberAllocator { |
| 345 | public: |
| 346 | TransportSequenceNumberProxy() : seq_num_allocator_(nullptr) { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 347 | pacer_thread_.Detach(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 348 | } |
| 349 | |
| 350 | void SetSequenceNumberAllocator( |
| 351 | TransportSequenceNumberAllocator* seq_num_allocator) { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 352 | RTC_DCHECK(thread_checker_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 353 | rtc::CritScope lock(&crit_); |
| 354 | seq_num_allocator_ = seq_num_allocator; |
| 355 | } |
| 356 | |
| 357 | // Implements TransportSequenceNumberAllocator. |
| 358 | uint16_t AllocateSequenceNumber() override { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 359 | RTC_DCHECK(pacer_thread_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 360 | rtc::CritScope lock(&crit_); |
| 361 | if (!seq_num_allocator_) |
| 362 | return 0; |
| 363 | return seq_num_allocator_->AllocateSequenceNumber(); |
| 364 | } |
| 365 | |
| 366 | private: |
| 367 | rtc::CriticalSection crit_; |
| 368 | rtc::ThreadChecker thread_checker_; |
| 369 | rtc::ThreadChecker pacer_thread_; |
| 370 | TransportSequenceNumberAllocator* seq_num_allocator_ RTC_GUARDED_BY(&crit_); |
| 371 | }; |
| 372 | |
Erik Språng | aa59eca | 2019-07-24 14:52:55 +0200 | [diff] [blame] | 373 | class RtpPacketSenderProxy : public RtpPacketSender { |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 374 | public: |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 375 | RtpPacketSenderProxy() : rtp_packet_pacer_(nullptr) {} |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 376 | |
Erik Språng | aa59eca | 2019-07-24 14:52:55 +0200 | [diff] [blame] | 377 | void SetPacketPacer(RtpPacketSender* rtp_packet_pacer) { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 378 | RTC_DCHECK(thread_checker_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 379 | rtc::CritScope lock(&crit_); |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 380 | rtp_packet_pacer_ = rtp_packet_pacer; |
| 381 | } |
| 382 | |
| 383 | void EnqueuePacket(std::unique_ptr<RtpPacketToSend> packet) override { |
| 384 | rtc::CritScope lock(&crit_); |
| 385 | rtp_packet_pacer_->EnqueuePacket(std::move(packet)); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 386 | } |
| 387 | |
| 388 | // Implements RtpPacketSender. |
| 389 | void InsertPacket(Priority priority, |
| 390 | uint32_t ssrc, |
| 391 | uint16_t sequence_number, |
| 392 | int64_t capture_time_ms, |
| 393 | size_t bytes, |
| 394 | bool retransmission) override { |
| 395 | rtc::CritScope lock(&crit_); |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 396 | if (rtp_packet_pacer_) { |
| 397 | rtp_packet_pacer_->InsertPacket(priority, ssrc, sequence_number, |
| 398 | capture_time_ms, bytes, retransmission); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 399 | } |
| 400 | } |
| 401 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 402 | private: |
| 403 | rtc::ThreadChecker thread_checker_; |
| 404 | rtc::CriticalSection crit_; |
Erik Språng | aa59eca | 2019-07-24 14:52:55 +0200 | [diff] [blame] | 405 | RtpPacketSender* rtp_packet_pacer_ RTC_GUARDED_BY(&crit_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 406 | }; |
| 407 | |
| 408 | class VoERtcpObserver : public RtcpBandwidthObserver { |
| 409 | public: |
| 410 | explicit VoERtcpObserver(ChannelSend* owner) |
| 411 | : owner_(owner), bandwidth_observer_(nullptr) {} |
Mirko Bonadei | fe055c1 | 2019-01-29 22:53:28 +0100 | [diff] [blame] | 412 | ~VoERtcpObserver() override {} |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 413 | |
| 414 | void SetBandwidthObserver(RtcpBandwidthObserver* bandwidth_observer) { |
| 415 | rtc::CritScope lock(&crit_); |
| 416 | bandwidth_observer_ = bandwidth_observer; |
| 417 | } |
| 418 | |
| 419 | void OnReceivedEstimatedBitrate(uint32_t bitrate) override { |
| 420 | rtc::CritScope lock(&crit_); |
| 421 | if (bandwidth_observer_) { |
| 422 | bandwidth_observer_->OnReceivedEstimatedBitrate(bitrate); |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | void OnReceivedRtcpReceiverReport(const ReportBlockList& report_blocks, |
| 427 | int64_t rtt, |
| 428 | int64_t now_ms) override { |
| 429 | { |
| 430 | rtc::CritScope lock(&crit_); |
| 431 | if (bandwidth_observer_) { |
| 432 | bandwidth_observer_->OnReceivedRtcpReceiverReport(report_blocks, rtt, |
| 433 | now_ms); |
| 434 | } |
| 435 | } |
| 436 | // TODO(mflodman): Do we need to aggregate reports here or can we jut send |
| 437 | // what we get? I.e. do we ever get multiple reports bundled into one RTCP |
| 438 | // report for VoiceEngine? |
| 439 | if (report_blocks.empty()) |
| 440 | return; |
| 441 | |
| 442 | int fraction_lost_aggregate = 0; |
| 443 | int total_number_of_packets = 0; |
| 444 | |
| 445 | // If receiving multiple report blocks, calculate the weighted average based |
| 446 | // on the number of packets a report refers to. |
| 447 | for (ReportBlockList::const_iterator block_it = report_blocks.begin(); |
| 448 | block_it != report_blocks.end(); ++block_it) { |
| 449 | // Find the previous extended high sequence number for this remote SSRC, |
| 450 | // to calculate the number of RTP packets this report refers to. Ignore if |
| 451 | // we haven't seen this SSRC before. |
| 452 | std::map<uint32_t, uint32_t>::iterator seq_num_it = |
| 453 | extended_max_sequence_number_.find(block_it->source_ssrc); |
| 454 | int number_of_packets = 0; |
| 455 | if (seq_num_it != extended_max_sequence_number_.end()) { |
| 456 | number_of_packets = |
| 457 | block_it->extended_highest_sequence_number - seq_num_it->second; |
| 458 | } |
| 459 | fraction_lost_aggregate += number_of_packets * block_it->fraction_lost; |
| 460 | total_number_of_packets += number_of_packets; |
| 461 | |
| 462 | extended_max_sequence_number_[block_it->source_ssrc] = |
| 463 | block_it->extended_highest_sequence_number; |
| 464 | } |
| 465 | int weighted_fraction_lost = 0; |
| 466 | if (total_number_of_packets > 0) { |
| 467 | weighted_fraction_lost = |
| 468 | (fraction_lost_aggregate + total_number_of_packets / 2) / |
| 469 | total_number_of_packets; |
| 470 | } |
| 471 | owner_->OnUplinkPacketLossRate(weighted_fraction_lost / 255.0f); |
| 472 | } |
| 473 | |
| 474 | private: |
| 475 | ChannelSend* owner_; |
| 476 | // Maps remote side ssrc to extended highest sequence number received. |
| 477 | std::map<uint32_t, uint32_t> extended_max_sequence_number_; |
| 478 | rtc::CriticalSection crit_; |
| 479 | RtcpBandwidthObserver* bandwidth_observer_ RTC_GUARDED_BY(crit_); |
| 480 | }; |
| 481 | |
Niels Möller | 87e2d78 | 2019-03-07 10:18:23 +0100 | [diff] [blame] | 482 | int32_t ChannelSend::SendData(AudioFrameType frameType, |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 483 | uint8_t payloadType, |
| 484 | uint32_t timeStamp, |
| 485 | const uint8_t* payloadData, |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 486 | size_t payloadSize) { |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 487 | RTC_DCHECK_RUN_ON(&encoder_queue_); |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 488 | rtc::ArrayView<const uint8_t> payload(payloadData, payloadSize); |
| 489 | |
| 490 | if (media_transport() != nullptr) { |
Niels Möller | c936cb6 | 2019-03-19 14:10:16 +0100 | [diff] [blame] | 491 | if (frameType == AudioFrameType::kEmptyFrame) { |
Piotr (Peter) Slatala | 3cdd4d5 | 2019-02-28 07:10:56 -0800 | [diff] [blame] | 492 | // TODO(bugs.webrtc.org/9719): Media transport Send doesn't support |
| 493 | // sending empty frames. |
| 494 | return 0; |
| 495 | } |
| 496 | |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 497 | return SendMediaTransportAudio(frameType, payloadType, timeStamp, payload); |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 498 | } else { |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 499 | return SendRtpAudio(frameType, payloadType, timeStamp, payload); |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 500 | } |
| 501 | } |
| 502 | |
Niels Möller | 87e2d78 | 2019-03-07 10:18:23 +0100 | [diff] [blame] | 503 | int32_t ChannelSend::SendRtpAudio(AudioFrameType frameType, |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 504 | uint8_t payloadType, |
| 505 | uint32_t timeStamp, |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 506 | rtc::ArrayView<const uint8_t> payload) { |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 507 | if (_includeAudioLevelIndication) { |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 508 | // Store current audio level in the RTP sender. |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 509 | // The level will be used in combination with voice-activity state |
| 510 | // (frameType) to add an RTP header extension |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 511 | rtp_sender_audio_->SetAudioLevel(rms_level_.Average()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 512 | } |
| 513 | |
Benjamin Wright | 84583f6 | 2018-10-04 14:22:34 -0700 | [diff] [blame] | 514 | // E2EE Custom Audio Frame Encryption (This is optional). |
| 515 | // Keep this buffer around for the lifetime of the send call. |
| 516 | rtc::Buffer encrypted_audio_payload; |
Minyue Li | 9ab520e | 2019-05-28 13:27:40 +0200 | [diff] [blame] | 517 | // We don't invoke encryptor if payload is empty, which means we are to send |
| 518 | // DTMF, or the encoder entered DTX. |
| 519 | // TODO(minyue): see whether DTMF packets should be encrypted or not. In |
| 520 | // current implementation, they are not. |
Minyue Li | f48bca7 | 2019-06-20 23:37:02 +0200 | [diff] [blame] | 521 | if (!payload.empty()) { |
| 522 | if (frame_encryptor_ != nullptr) { |
| 523 | // TODO(benwright@webrtc.org) - Allocate enough to always encrypt inline. |
| 524 | // Allocate a buffer to hold the maximum possible encrypted payload. |
| 525 | size_t max_ciphertext_size = frame_encryptor_->GetMaxCiphertextByteSize( |
| 526 | cricket::MEDIA_TYPE_AUDIO, payload.size()); |
| 527 | encrypted_audio_payload.SetSize(max_ciphertext_size); |
Benjamin Wright | 84583f6 | 2018-10-04 14:22:34 -0700 | [diff] [blame] | 528 | |
Minyue Li | f48bca7 | 2019-06-20 23:37:02 +0200 | [diff] [blame] | 529 | // Encrypt the audio payload into the buffer. |
| 530 | size_t bytes_written = 0; |
| 531 | int encrypt_status = frame_encryptor_->Encrypt( |
| 532 | cricket::MEDIA_TYPE_AUDIO, _rtpRtcpModule->SSRC(), |
| 533 | /*additional_data=*/nullptr, payload, encrypted_audio_payload, |
| 534 | &bytes_written); |
| 535 | if (encrypt_status != 0) { |
| 536 | RTC_DLOG(LS_ERROR) |
| 537 | << "Channel::SendData() failed encrypt audio payload: " |
| 538 | << encrypt_status; |
| 539 | return -1; |
| 540 | } |
| 541 | // Resize the buffer to the exact number of bytes actually used. |
| 542 | encrypted_audio_payload.SetSize(bytes_written); |
| 543 | // Rewrite the payloadData and size to the new encrypted payload. |
| 544 | payload = encrypted_audio_payload; |
| 545 | } else if (crypto_options_.sframe.require_frame_encryption) { |
| 546 | RTC_DLOG(LS_ERROR) << "Channel::SendData() failed sending audio payload: " |
| 547 | << "A frame encryptor is required but one is not set."; |
Benjamin Wright | 84583f6 | 2018-10-04 14:22:34 -0700 | [diff] [blame] | 548 | return -1; |
| 549 | } |
Benjamin Wright | 84583f6 | 2018-10-04 14:22:34 -0700 | [diff] [blame] | 550 | } |
| 551 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 552 | // Push data from ACM to RTP/RTCP-module to deliver audio frame for |
| 553 | // packetization. |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 554 | if (!_rtpRtcpModule->OnSendingRtpFrame(timeStamp, |
| 555 | // Leaving the time when this frame was |
| 556 | // received from the capture device as |
| 557 | // undefined for voice for now. |
| 558 | -1, payloadType, |
| 559 | /*force_sender_report=*/false)) { |
| 560 | return false; |
| 561 | } |
| 562 | |
| 563 | // RTCPSender has it's own copy of the timestamp offset, added in |
| 564 | // RTCPSender::BuildSR, hence we must not add the in the offset for the above |
| 565 | // call. |
| 566 | // TODO(nisse): Delete RTCPSender:timestamp_offset_, and see if we can confine |
| 567 | // knowledge of the offset to a single place. |
| 568 | const uint32_t rtp_timestamp = timeStamp + _rtpRtcpModule->StartTimestamp(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 569 | // This call will trigger Transport::SendPacket() from the RTP/RTCP module. |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 570 | if (!rtp_sender_audio_->SendAudio(frameType, payloadType, rtp_timestamp, |
| 571 | payload.data(), payload.size())) { |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 572 | RTC_DLOG(LS_ERROR) |
| 573 | << "ChannelSend::SendData() failed to send data to RTP/RTCP module"; |
| 574 | return -1; |
| 575 | } |
| 576 | |
| 577 | return 0; |
| 578 | } |
| 579 | |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 580 | int32_t ChannelSend::SendMediaTransportAudio( |
Niels Möller | 87e2d78 | 2019-03-07 10:18:23 +0100 | [diff] [blame] | 581 | AudioFrameType frameType, |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 582 | uint8_t payloadType, |
| 583 | uint32_t timeStamp, |
Niels Möller | c35b6e6 | 2019-04-25 16:31:18 +0200 | [diff] [blame] | 584 | rtc::ArrayView<const uint8_t> payload) { |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 585 | // TODO(nisse): Use null _transportPtr for MediaTransport. |
| 586 | // RTC_DCHECK(_transportPtr == nullptr); |
| 587 | uint64_t channel_id; |
| 588 | int sampling_rate_hz; |
| 589 | { |
| 590 | rtc::CritScope cs(&media_transport_lock_); |
| 591 | if (media_transport_payload_type_ != payloadType) { |
| 592 | // Payload type is being changed, media_transport_sampling_frequency_, |
| 593 | // no longer current. |
| 594 | return -1; |
| 595 | } |
| 596 | sampling_rate_hz = media_transport_sampling_frequency_; |
| 597 | channel_id = media_transport_channel_id_; |
| 598 | } |
Mirko Bonadei | 1c54605 | 2019-02-04 14:50:38 +0100 | [diff] [blame] | 599 | MediaTransportEncodedAudioFrame frame( |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 600 | /*sampling_rate_hz=*/sampling_rate_hz, |
| 601 | |
| 602 | // TODO(nisse): Timestamp and sample index are the same for all supported |
| 603 | // audio codecs except G722. Refactor audio coding module to only use |
| 604 | // sample index, and leave translation to RTP time, when needed, for |
| 605 | // RTP-specific code. |
| 606 | /*starting_sample_index=*/timeStamp, |
| 607 | |
| 608 | // Sample count isn't conveniently available from the AudioCodingModule, |
| 609 | // and needs some refactoring to wire up in a good way. For now, left as |
| 610 | // zero. |
Benjamin Wright | 17b050f | 2019-03-13 17:35:46 -0700 | [diff] [blame] | 611 | /*samples_per_channel=*/0, |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 612 | |
| 613 | /*sequence_number=*/media_transport_sequence_number_, |
| 614 | MediaTransportFrameTypeForWebrtcFrameType(frameType), payloadType, |
| 615 | std::vector<uint8_t>(payload.begin(), payload.end())); |
| 616 | |
| 617 | // TODO(nisse): Introduce a MediaTransportSender object bound to a specific |
| 618 | // channel id. |
| 619 | RTCError rtc_error = |
| 620 | media_transport()->SendAudioFrame(channel_id, std::move(frame)); |
| 621 | |
| 622 | if (!rtc_error.ok()) { |
| 623 | RTC_LOG(LS_ERROR) << "Failed to send frame, rtc_error=" |
| 624 | << ToString(rtc_error.type()) << ", " |
| 625 | << rtc_error.message(); |
| 626 | return -1; |
| 627 | } |
| 628 | |
| 629 | ++media_transport_sequence_number_; |
| 630 | |
| 631 | return 0; |
| 632 | } |
| 633 | |
Sebastian Jansson | 977b335 | 2019-03-04 17:43:34 +0100 | [diff] [blame] | 634 | ChannelSend::ChannelSend(Clock* clock, |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 635 | TaskQueueFactory* task_queue_factory, |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 636 | ProcessThread* module_process_thread, |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 637 | const MediaTransportConfig& media_transport_config, |
Anton Sukhanov | 626015d | 2019-02-04 15:16:06 -0800 | [diff] [blame] | 638 | OverheadObserver* overhead_observer, |
Niels Möller | e977199 | 2018-11-26 10:55:07 +0100 | [diff] [blame] | 639 | Transport* rtp_transport, |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 640 | RtcpRttStats* rtcp_rtt_stats, |
Benjamin Wright | 84583f6 | 2018-10-04 14:22:34 -0700 | [diff] [blame] | 641 | RtcEventLog* rtc_event_log, |
Benjamin Wright | bfb444c | 2018-10-15 10:20:24 -0700 | [diff] [blame] | 642 | FrameEncryptorInterface* frame_encryptor, |
Johannes Kron | 9190b82 | 2018-10-29 11:22:05 +0100 | [diff] [blame] | 643 | const webrtc::CryptoOptions& crypto_options, |
Jiawei Ou | 5571812 | 2018-11-09 13:17:39 -0800 | [diff] [blame] | 644 | bool extmap_allow_mixed, |
Erik Språng | 4c2c412 | 2019-07-11 15:20:15 +0200 | [diff] [blame] | 645 | int rtcp_report_interval_ms, |
| 646 | uint32_t ssrc) |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 647 | : event_log_(rtc_event_log), |
| 648 | _timeStamp(0), // This is just an offset, RTP module will add it's own |
| 649 | // random offset |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 650 | _moduleProcessThreadPtr(module_process_thread), |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 651 | input_mute_(false), |
| 652 | previous_frame_muted_(false), |
| 653 | _includeAudioLevelIndication(false), |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 654 | rtcp_observer_(new VoERtcpObserver(this)), |
| 655 | feedback_observer_proxy_(new TransportFeedbackProxy()), |
| 656 | seq_num_allocator_proxy_(new TransportSequenceNumberProxy()), |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 657 | rtp_packet_pacer_proxy_(new RtpPacketSenderProxy()), |
Sebastian Jansson | 977b335 | 2019-03-04 17:43:34 +0100 | [diff] [blame] | 658 | retransmission_rate_limiter_( |
| 659 | new RateLimiter(clock, kMaxRetransmissionWindowMs)), |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 660 | use_twcc_plr_for_ana_( |
| 661 | webrtc::field_trial::FindFullName("UseTwccPlrForAna") == "Enabled"), |
Bjorn A Mellem | da4f093 | 2019-07-30 08:34:03 -0700 | [diff] [blame] | 662 | use_standard_bytes_stats_( |
| 663 | webrtc::field_trial::IsEnabled(kUseStandardBytesStats)), |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 664 | media_transport_config_(media_transport_config), |
Benjamin Wright | bfb444c | 2018-10-15 10:20:24 -0700 | [diff] [blame] | 665 | frame_encryptor_(frame_encryptor), |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 666 | crypto_options_(crypto_options), |
| 667 | encoder_queue_(task_queue_factory->CreateTaskQueue( |
| 668 | "AudioEncoder", |
| 669 | TaskQueueFactory::Priority::NORMAL)) { |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 670 | RTC_DCHECK(module_process_thread); |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 671 | module_process_thread_checker_.Detach(); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 672 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 673 | audio_coding_.reset(AudioCodingModule::Create(AudioCodingModule::Config())); |
| 674 | |
| 675 | RtpRtcp::Configuration configuration; |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 676 | |
| 677 | // We gradually remove codepaths that depend on RTP when using media |
| 678 | // transport. All of this logic should be moved to the future |
| 679 | // RTPMediaTransport. In this case it means that overhead and bandwidth |
| 680 | // observers should not be called when using media transport. |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 681 | if (!media_transport_config.media_transport) { |
Anton Sukhanov | 626015d | 2019-02-04 15:16:06 -0800 | [diff] [blame] | 682 | configuration.overhead_observer = overhead_observer; |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 683 | configuration.bandwidth_callback = rtcp_observer_.get(); |
| 684 | configuration.transport_feedback_callback = feedback_observer_proxy_.get(); |
| 685 | } |
| 686 | |
Sebastian Jansson | 977b335 | 2019-03-04 17:43:34 +0100 | [diff] [blame] | 687 | configuration.clock = clock; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 688 | configuration.audio = true; |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 689 | configuration.clock = Clock::GetRealTimeClock(); |
Fredrik Solenberg | 3d2ed19 | 2018-12-18 09:18:33 +0100 | [diff] [blame] | 690 | configuration.outgoing_transport = rtp_transport; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 691 | |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 692 | configuration.paced_sender = rtp_packet_pacer_proxy_.get(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 693 | configuration.transport_sequence_number_allocator = |
| 694 | seq_num_allocator_proxy_.get(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 695 | |
| 696 | configuration.event_log = event_log_; |
| 697 | configuration.rtt_stats = rtcp_rtt_stats; |
| 698 | configuration.retransmission_rate_limiter = |
| 699 | retransmission_rate_limiter_.get(); |
Johannes Kron | 9190b82 | 2018-10-29 11:22:05 +0100 | [diff] [blame] | 700 | configuration.extmap_allow_mixed = extmap_allow_mixed; |
Jiawei Ou | 8b5d9d8 | 2018-11-15 16:44:37 -0800 | [diff] [blame] | 701 | configuration.rtcp_report_interval_ms = rtcp_report_interval_ms; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 702 | |
Erik Språng | 54d5d2c | 2019-08-20 17:22:36 +0200 | [diff] [blame] | 703 | configuration.local_media_ssrc = ssrc; |
Erik Språng | 70efdde | 2019-08-21 13:36:20 +0200 | [diff] [blame^] | 704 | if (media_transport_config_.media_transport) { |
| 705 | rtc::CritScope cs(&media_transport_lock_); |
| 706 | media_transport_channel_id_ = ssrc; |
| 707 | } |
Erik Språng | 4c2c412 | 2019-07-11 15:20:15 +0200 | [diff] [blame] | 708 | |
Danil Chapovalov | c44f6cc | 2019-03-06 11:31:09 +0100 | [diff] [blame] | 709 | _rtpRtcpModule = RtpRtcp::Create(configuration); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 710 | _rtpRtcpModule->SetSendingMediaStatus(false); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 711 | |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 712 | rtp_sender_audio_ = absl::make_unique<RTPSenderAudio>( |
| 713 | configuration.clock, _rtpRtcpModule->RtpSender()); |
| 714 | |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 715 | // We want to invoke the 'TargetRateObserver' and |OnOverheadChanged| |
| 716 | // callbacks after the audio_coding_ is fully initialized. |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 717 | if (media_transport_config.media_transport) { |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 718 | RTC_DLOG(LS_INFO) << "Setting media_transport_ rate observers."; |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 719 | media_transport_config.media_transport->AddTargetTransferRateObserver(this); |
| 720 | media_transport_config.media_transport->SetAudioOverheadObserver( |
| 721 | overhead_observer); |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 722 | } else { |
| 723 | RTC_DLOG(LS_INFO) << "Not setting media_transport_ rate observers."; |
| 724 | } |
| 725 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 726 | _moduleProcessThreadPtr->RegisterModule(_rtpRtcpModule.get(), RTC_FROM_HERE); |
| 727 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 728 | // Ensure that RTCP is enabled by default for the created channel. |
| 729 | // Note that, the module will keep generating RTCP until it is explicitly |
| 730 | // disabled by the user. |
| 731 | // After StopListen (when no sockets exists), RTCP packets will no longer |
| 732 | // be transmitted since the Transport object will then be invalid. |
| 733 | // RTCP is enabled by default. |
| 734 | _rtpRtcpModule->SetRTCPStatus(RtcpMode::kCompound); |
| 735 | |
Fredrik Solenberg | eb13484 | 2018-11-19 14:13:15 +0100 | [diff] [blame] | 736 | int error = audio_coding_->RegisterTransportCallback(this); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 737 | RTC_DCHECK_EQ(0, error); |
| 738 | } |
| 739 | |
Fredrik Solenberg | 645a3af | 2018-11-16 12:51:15 +0100 | [diff] [blame] | 740 | ChannelSend::~ChannelSend() { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 741 | RTC_DCHECK(construction_thread_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 742 | |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 743 | if (media_transport_config_.media_transport) { |
| 744 | media_transport_config_.media_transport->RemoveTargetTransferRateObserver( |
| 745 | this); |
| 746 | media_transport_config_.media_transport->SetAudioOverheadObserver(nullptr); |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 747 | } |
| 748 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 749 | StopSend(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 750 | int error = audio_coding_->RegisterTransportCallback(NULL); |
| 751 | RTC_DCHECK_EQ(0, error); |
| 752 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 753 | if (_moduleProcessThreadPtr) |
| 754 | _moduleProcessThreadPtr->DeRegisterModule(_rtpRtcpModule.get()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 755 | } |
| 756 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 757 | void ChannelSend::StartSend() { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 758 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Fredrik Solenberg | eb13484 | 2018-11-19 14:13:15 +0100 | [diff] [blame] | 759 | RTC_DCHECK(!sending_); |
| 760 | sending_ = true; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 761 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 762 | _rtpRtcpModule->SetSendingMediaStatus(true); |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 763 | int ret = _rtpRtcpModule->SetSendingStatus(true); |
| 764 | RTC_DCHECK_EQ(0, ret); |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 765 | // It is now OK to start processing on the encoder task queue. |
| 766 | encoder_queue_.PostTask([this] { |
| 767 | RTC_DCHECK_RUN_ON(&encoder_queue_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 768 | encoder_queue_is_active_ = true; |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 769 | }); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | void ChannelSend::StopSend() { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 773 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Fredrik Solenberg | eb13484 | 2018-11-19 14:13:15 +0100 | [diff] [blame] | 774 | if (!sending_) { |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 775 | return; |
| 776 | } |
Fredrik Solenberg | eb13484 | 2018-11-19 14:13:15 +0100 | [diff] [blame] | 777 | sending_ = false; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 778 | |
Niels Möller | c572ff3 | 2018-11-07 08:43:50 +0100 | [diff] [blame] | 779 | rtc::Event flush; |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 780 | encoder_queue_.PostTask([this, &flush]() { |
| 781 | RTC_DCHECK_RUN_ON(&encoder_queue_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 782 | encoder_queue_is_active_ = false; |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 783 | flush.Set(); |
| 784 | }); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 785 | flush.Wait(rtc::Event::kForever); |
| 786 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 787 | // Reset sending SSRC and sequence number and triggers direct transmission |
| 788 | // of RTCP BYE |
| 789 | if (_rtpRtcpModule->SetSendingStatus(false) == -1) { |
| 790 | RTC_DLOG(LS_ERROR) << "StartSend() RTP/RTCP failed to stop sending"; |
| 791 | } |
| 792 | _rtpRtcpModule->SetSendingMediaStatus(false); |
| 793 | } |
| 794 | |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 795 | void ChannelSend::SetEncoder(int payload_type, |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 796 | std::unique_ptr<AudioEncoder> encoder) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 797 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 798 | RTC_DCHECK_GE(payload_type, 0); |
| 799 | RTC_DCHECK_LE(payload_type, 127); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 800 | |
| 801 | // The RTP/RTCP module needs to know the RTP timestamp rate (i.e. clockrate) |
| 802 | // as well as some other things, so we collect this info and send it along. |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 803 | _rtpRtcpModule->RegisterSendPayloadFrequency(payload_type, |
| 804 | encoder->RtpTimestampRateHz()); |
| 805 | rtp_sender_audio_->RegisterAudioPayload("audio", payload_type, |
| 806 | encoder->RtpTimestampRateHz(), |
| 807 | encoder->NumChannels(), 0); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 808 | |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 809 | if (media_transport_config_.media_transport) { |
Niels Möller | 7d76a31 | 2018-10-26 12:57:07 +0200 | [diff] [blame] | 810 | rtc::CritScope cs(&media_transport_lock_); |
| 811 | media_transport_payload_type_ = payload_type; |
| 812 | // TODO(nisse): Currently broken for G722, since timestamps passed through |
| 813 | // encoder use RTP clock rather than sample count, and they differ for G722. |
| 814 | media_transport_sampling_frequency_ = encoder->RtpTimestampRateHz(); |
| 815 | } |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 816 | audio_coding_->SetEncoder(std::move(encoder)); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 817 | } |
| 818 | |
| 819 | void ChannelSend::ModifyEncoder( |
| 820 | rtc::FunctionView<void(std::unique_ptr<AudioEncoder>*)> modifier) { |
Anton Sukhanov | 626015d | 2019-02-04 15:16:06 -0800 | [diff] [blame] | 821 | // This method can be called on the worker thread, module process thread |
| 822 | // or network thread. Audio coding is thread safe, so we do not need to |
| 823 | // enforce the calling thread. |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 824 | audio_coding_->ModifyEncoder(modifier); |
| 825 | } |
| 826 | |
Sebastian Jansson | 14a7cf9 | 2019-02-13 15:11:42 +0100 | [diff] [blame] | 827 | void ChannelSend::CallEncoder(rtc::FunctionView<void(AudioEncoder*)> modifier) { |
| 828 | ModifyEncoder([modifier](std::unique_ptr<AudioEncoder>* encoder_ptr) { |
| 829 | if (*encoder_ptr) { |
| 830 | modifier(encoder_ptr->get()); |
| 831 | } else { |
| 832 | RTC_DLOG(LS_WARNING) << "Trying to call unset encoder."; |
| 833 | } |
| 834 | }); |
| 835 | } |
| 836 | |
Sebastian Jansson | 254d869 | 2018-11-21 19:19:00 +0100 | [diff] [blame] | 837 | void ChannelSend::OnBitrateAllocation(BitrateAllocationUpdate update) { |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 838 | // This method can be called on the worker thread, module process thread |
| 839 | // or on a TaskQueue via VideoSendStreamImpl::OnEncoderConfigurationChanged. |
| 840 | // TODO(solenberg): Figure out a good way to check this or enforce calling |
| 841 | // rules. |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 842 | // RTC_DCHECK(worker_thread_checker_.IsCurrent() || |
| 843 | // module_process_thread_checker_.IsCurrent()); |
Piotr (Peter) Slatala | 1eebec9 | 2018-11-16 09:03:35 -0800 | [diff] [blame] | 844 | rtc::CritScope lock(&bitrate_crit_section_); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 845 | |
Sebastian Jansson | 14a7cf9 | 2019-02-13 15:11:42 +0100 | [diff] [blame] | 846 | CallEncoder([&](AudioEncoder* encoder) { |
| 847 | encoder->OnReceivedUplinkAllocation(update); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 848 | }); |
Sebastian Jansson | 254d869 | 2018-11-21 19:19:00 +0100 | [diff] [blame] | 849 | retransmission_rate_limiter_->SetMaxRate(update.target_bitrate.bps()); |
| 850 | configured_bitrate_bps_ = update.target_bitrate.bps(); |
Sebastian Jansson | 359d60a | 2018-10-25 16:22:02 +0200 | [diff] [blame] | 851 | } |
| 852 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 853 | int ChannelSend::GetBitrate() const { |
Piotr (Peter) Slatala | 1eebec9 | 2018-11-16 09:03:35 -0800 | [diff] [blame] | 854 | rtc::CritScope lock(&bitrate_crit_section_); |
Sebastian Jansson | 359d60a | 2018-10-25 16:22:02 +0200 | [diff] [blame] | 855 | return configured_bitrate_bps_; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 856 | } |
| 857 | |
| 858 | void ChannelSend::OnTwccBasedUplinkPacketLossRate(float packet_loss_rate) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 859 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 860 | if (!use_twcc_plr_for_ana_) |
| 861 | return; |
Sebastian Jansson | 14a7cf9 | 2019-02-13 15:11:42 +0100 | [diff] [blame] | 862 | CallEncoder([&](AudioEncoder* encoder) { |
| 863 | encoder->OnReceivedUplinkPacketLossFraction(packet_loss_rate); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 864 | }); |
| 865 | } |
| 866 | |
| 867 | void ChannelSend::OnRecoverableUplinkPacketLossRate( |
| 868 | float recoverable_packet_loss_rate) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 869 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Sebastian Jansson | 14a7cf9 | 2019-02-13 15:11:42 +0100 | [diff] [blame] | 870 | CallEncoder([&](AudioEncoder* encoder) { |
| 871 | encoder->OnReceivedUplinkRecoverablePacketLossFraction( |
| 872 | recoverable_packet_loss_rate); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 873 | }); |
| 874 | } |
| 875 | |
| 876 | void ChannelSend::OnUplinkPacketLossRate(float packet_loss_rate) { |
| 877 | if (use_twcc_plr_for_ana_) |
| 878 | return; |
Sebastian Jansson | 14a7cf9 | 2019-02-13 15:11:42 +0100 | [diff] [blame] | 879 | CallEncoder([&](AudioEncoder* encoder) { |
| 880 | encoder->OnReceivedUplinkPacketLossFraction(packet_loss_rate); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 881 | }); |
| 882 | } |
| 883 | |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 884 | void ChannelSend::ReceivedRTCPPacket(const uint8_t* data, size_t length) { |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 885 | // May be called on either worker thread or network thread. |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 886 | if (media_transport_config_.media_transport) { |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 887 | // Ignore RTCP packets while media transport is used. |
| 888 | // Those packets should not arrive, but we are seeing occasional packets. |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 889 | return; |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 890 | } |
| 891 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 892 | // Deliver RTCP packet to RTP/RTCP module for parsing |
| 893 | _rtpRtcpModule->IncomingRtcpPacket(data, length); |
| 894 | |
| 895 | int64_t rtt = GetRTT(); |
| 896 | if (rtt == 0) { |
| 897 | // Waiting for valid RTT. |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 898 | return; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 899 | } |
| 900 | |
| 901 | int64_t nack_window_ms = rtt; |
| 902 | if (nack_window_ms < kMinRetransmissionWindowMs) { |
| 903 | nack_window_ms = kMinRetransmissionWindowMs; |
| 904 | } else if (nack_window_ms > kMaxRetransmissionWindowMs) { |
| 905 | nack_window_ms = kMaxRetransmissionWindowMs; |
| 906 | } |
| 907 | retransmission_rate_limiter_->SetWindowSize(nack_window_ms); |
| 908 | |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 909 | OnReceivedRtt(rtt); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 910 | } |
| 911 | |
| 912 | void ChannelSend::SetInputMute(bool enable) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 913 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 914 | rtc::CritScope cs(&volume_settings_critsect_); |
| 915 | input_mute_ = enable; |
| 916 | } |
| 917 | |
| 918 | bool ChannelSend::InputMute() const { |
| 919 | rtc::CritScope cs(&volume_settings_critsect_); |
| 920 | return input_mute_; |
| 921 | } |
| 922 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 923 | bool ChannelSend::SendTelephoneEventOutband(int event, int duration_ms) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 924 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 925 | RTC_DCHECK_LE(0, event); |
| 926 | RTC_DCHECK_GE(255, event); |
| 927 | RTC_DCHECK_LE(0, duration_ms); |
| 928 | RTC_DCHECK_GE(65535, duration_ms); |
Fredrik Solenberg | eb13484 | 2018-11-19 14:13:15 +0100 | [diff] [blame] | 929 | if (!sending_) { |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 930 | return false; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 931 | } |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 932 | if (rtp_sender_audio_->SendTelephoneEvent( |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 933 | event, duration_ms, kTelephoneEventAttenuationdB) != 0) { |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 934 | RTC_DLOG(LS_ERROR) << "SendTelephoneEvent() failed to send event"; |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 935 | return false; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 936 | } |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 937 | return true; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 938 | } |
| 939 | |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 940 | void ChannelSend::RegisterCngPayloadType(int payload_type, |
| 941 | int payload_frequency) { |
| 942 | _rtpRtcpModule->RegisterSendPayloadFrequency(payload_type, payload_frequency); |
| 943 | rtp_sender_audio_->RegisterAudioPayload("CN", payload_type, payload_frequency, |
| 944 | 1, 0); |
| 945 | } |
| 946 | |
Niels Möller | 8fb1a6a | 2019-03-05 14:29:42 +0100 | [diff] [blame] | 947 | void ChannelSend::SetSendTelephoneEventPayloadType(int payload_type, |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 948 | int payload_frequency) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 949 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 950 | RTC_DCHECK_LE(0, payload_type); |
| 951 | RTC_DCHECK_GE(127, payload_type); |
Niels Möller | ee5ccbc | 2019-03-06 16:47:29 +0100 | [diff] [blame] | 952 | _rtpRtcpModule->RegisterSendPayloadFrequency(payload_type, payload_frequency); |
| 953 | rtp_sender_audio_->RegisterAudioPayload("telephone-event", payload_type, |
| 954 | payload_frequency, 0, 0); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 955 | } |
| 956 | |
Amit Hilbuch | 77938e6 | 2018-12-21 09:23:38 -0800 | [diff] [blame] | 957 | void ChannelSend::SetRid(const std::string& rid, |
| 958 | int extension_id, |
| 959 | int repaired_extension_id) { |
| 960 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
| 961 | if (extension_id != 0) { |
| 962 | int ret = SetSendRtpHeaderExtension(!rid.empty(), kRtpExtensionRtpStreamId, |
| 963 | extension_id); |
| 964 | RTC_DCHECK_EQ(0, ret); |
| 965 | } |
| 966 | if (repaired_extension_id != 0) { |
| 967 | int ret = SetSendRtpHeaderExtension(!rid.empty(), kRtpExtensionRtpStreamId, |
| 968 | repaired_extension_id); |
| 969 | RTC_DCHECK_EQ(0, ret); |
| 970 | } |
| 971 | _rtpRtcpModule->SetRid(rid); |
| 972 | } |
| 973 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 974 | void ChannelSend::SetMid(const std::string& mid, int extension_id) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 975 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 976 | int ret = SetSendRtpHeaderExtension(true, kRtpExtensionMid, extension_id); |
| 977 | RTC_DCHECK_EQ(0, ret); |
| 978 | _rtpRtcpModule->SetMid(mid); |
| 979 | } |
| 980 | |
Johannes Kron | 9190b82 | 2018-10-29 11:22:05 +0100 | [diff] [blame] | 981 | void ChannelSend::SetExtmapAllowMixed(bool extmap_allow_mixed) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 982 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Johannes Kron | 9190b82 | 2018-10-29 11:22:05 +0100 | [diff] [blame] | 983 | _rtpRtcpModule->SetExtmapAllowMixed(extmap_allow_mixed); |
| 984 | } |
| 985 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 986 | void ChannelSend::SetSendAudioLevelIndicationStatus(bool enable, int id) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 987 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 988 | _includeAudioLevelIndication = enable; |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 989 | int ret = SetSendRtpHeaderExtension(enable, kRtpExtensionAudioLevel, id); |
| 990 | RTC_DCHECK_EQ(0, ret); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 991 | } |
| 992 | |
| 993 | void ChannelSend::EnableSendTransportSequenceNumber(int id) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 994 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 995 | int ret = |
| 996 | SetSendRtpHeaderExtension(true, kRtpExtensionTransportSequenceNumber, id); |
| 997 | RTC_DCHECK_EQ(0, ret); |
| 998 | } |
| 999 | |
| 1000 | void ChannelSend::RegisterSenderCongestionControlObjects( |
| 1001 | RtpTransportControllerSendInterface* transport, |
| 1002 | RtcpBandwidthObserver* bandwidth_observer) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 1003 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Erik Språng | aa59eca | 2019-07-24 14:52:55 +0200 | [diff] [blame] | 1004 | RtpPacketSender* rtp_packet_pacer = transport->packet_sender(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1005 | TransportFeedbackObserver* transport_feedback_observer = |
| 1006 | transport->transport_feedback_observer(); |
| 1007 | PacketRouter* packet_router = transport->packet_router(); |
| 1008 | |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 1009 | RTC_DCHECK(rtp_packet_pacer); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1010 | RTC_DCHECK(transport_feedback_observer); |
| 1011 | RTC_DCHECK(packet_router); |
| 1012 | RTC_DCHECK(!packet_router_); |
| 1013 | rtcp_observer_->SetBandwidthObserver(bandwidth_observer); |
| 1014 | feedback_observer_proxy_->SetTransportFeedbackObserver( |
| 1015 | transport_feedback_observer); |
| 1016 | seq_num_allocator_proxy_->SetSequenceNumberAllocator(packet_router); |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 1017 | rtp_packet_pacer_proxy_->SetPacketPacer(rtp_packet_pacer); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1018 | _rtpRtcpModule->SetStorePacketsStatus(true, 600); |
| 1019 | constexpr bool remb_candidate = false; |
| 1020 | packet_router->AddSendRtpModule(_rtpRtcpModule.get(), remb_candidate); |
| 1021 | packet_router_ = packet_router; |
| 1022 | } |
| 1023 | |
| 1024 | void ChannelSend::ResetSenderCongestionControlObjects() { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 1025 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1026 | RTC_DCHECK(packet_router_); |
| 1027 | _rtpRtcpModule->SetStorePacketsStatus(false, 600); |
| 1028 | rtcp_observer_->SetBandwidthObserver(nullptr); |
| 1029 | feedback_observer_proxy_->SetTransportFeedbackObserver(nullptr); |
| 1030 | seq_num_allocator_proxy_->SetSequenceNumberAllocator(nullptr); |
| 1031 | packet_router_->RemoveSendRtpModule(_rtpRtcpModule.get()); |
| 1032 | packet_router_ = nullptr; |
Erik Språng | 59b8654 | 2019-06-23 18:24:46 +0200 | [diff] [blame] | 1033 | rtp_packet_pacer_proxy_->SetPacketPacer(nullptr); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1034 | } |
| 1035 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1036 | void ChannelSend::SetRTCP_CNAME(absl::string_view c_name) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 1037 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1038 | // Note: SetCNAME() accepts a c string of length at most 255. |
| 1039 | const std::string c_name_limited(c_name.substr(0, 255)); |
| 1040 | int ret = _rtpRtcpModule->SetCNAME(c_name_limited.c_str()) != 0; |
| 1041 | RTC_DCHECK_EQ(0, ret) << "SetRTCP_CNAME() failed to set RTCP CNAME"; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1042 | } |
| 1043 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1044 | std::vector<ReportBlock> ChannelSend::GetRemoteRTCPReportBlocks() const { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 1045 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1046 | // Get the report blocks from the latest received RTCP Sender or Receiver |
| 1047 | // Report. Each element in the vector contains the sender's SSRC and a |
| 1048 | // report block according to RFC 3550. |
| 1049 | std::vector<RTCPReportBlock> rtcp_report_blocks; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1050 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1051 | int ret = _rtpRtcpModule->RemoteRTCPStat(&rtcp_report_blocks); |
| 1052 | RTC_DCHECK_EQ(0, ret); |
| 1053 | |
| 1054 | std::vector<ReportBlock> report_blocks; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1055 | |
| 1056 | std::vector<RTCPReportBlock>::const_iterator it = rtcp_report_blocks.begin(); |
| 1057 | for (; it != rtcp_report_blocks.end(); ++it) { |
| 1058 | ReportBlock report_block; |
| 1059 | report_block.sender_SSRC = it->sender_ssrc; |
| 1060 | report_block.source_SSRC = it->source_ssrc; |
| 1061 | report_block.fraction_lost = it->fraction_lost; |
| 1062 | report_block.cumulative_num_packets_lost = it->packets_lost; |
| 1063 | report_block.extended_highest_sequence_number = |
| 1064 | it->extended_highest_sequence_number; |
| 1065 | report_block.interarrival_jitter = it->jitter; |
| 1066 | report_block.last_SR_timestamp = it->last_sender_report_timestamp; |
| 1067 | report_block.delay_since_last_SR = it->delay_since_last_sender_report; |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1068 | report_blocks.push_back(report_block); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1069 | } |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1070 | return report_blocks; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1071 | } |
| 1072 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1073 | CallSendStatistics ChannelSend::GetRTCPStatistics() const { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 1074 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1075 | CallSendStatistics stats = {0}; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1076 | stats.rttMs = GetRTT(); |
| 1077 | |
Henrik Boström | cf96e0f | 2019-04-17 13:51:53 +0200 | [diff] [blame] | 1078 | StreamDataCounters rtp_stats; |
| 1079 | StreamDataCounters rtx_stats; |
| 1080 | _rtpRtcpModule->GetSendStreamDataCounters(&rtp_stats, &rtx_stats); |
Bjorn A Mellem | da4f093 | 2019-07-30 08:34:03 -0700 | [diff] [blame] | 1081 | if (use_standard_bytes_stats_) { |
| 1082 | stats.bytesSent = rtp_stats.transmitted.payload_bytes + |
| 1083 | rtx_stats.transmitted.payload_bytes; |
| 1084 | } else { |
| 1085 | stats.bytesSent = rtp_stats.transmitted.payload_bytes + |
| 1086 | rtp_stats.transmitted.padding_bytes + |
| 1087 | rtp_stats.transmitted.header_bytes + |
| 1088 | rtx_stats.transmitted.payload_bytes + |
| 1089 | rtx_stats.transmitted.padding_bytes + |
| 1090 | rtx_stats.transmitted.header_bytes; |
| 1091 | } |
Henrik Boström | cf96e0f | 2019-04-17 13:51:53 +0200 | [diff] [blame] | 1092 | // TODO(https://crbug.com/webrtc/10555): RTX retransmissions should show up in |
| 1093 | // separate outbound-rtp stream objects. |
| 1094 | stats.retransmitted_bytes_sent = rtp_stats.retransmitted.payload_bytes; |
| 1095 | stats.packetsSent = |
| 1096 | rtp_stats.transmitted.packets + rtx_stats.transmitted.packets; |
| 1097 | stats.retransmitted_packets_sent = rtp_stats.retransmitted.packets; |
Henrik Boström | 6e436d1 | 2019-05-27 12:19:33 +0200 | [diff] [blame] | 1098 | stats.report_block_datas = _rtpRtcpModule->GetLatestReportBlockData(); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1099 | |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1100 | return stats; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1101 | } |
| 1102 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1103 | void ChannelSend::ProcessAndEncodeAudio( |
| 1104 | std::unique_ptr<AudioFrame> audio_frame) { |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 1105 | RTC_DCHECK_RUNS_SERIALIZED(&audio_thread_race_checker_); |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 1106 | struct ProcessAndEncodeAudio { |
| 1107 | void operator()() { |
| 1108 | RTC_DCHECK_RUN_ON(&channel->encoder_queue_); |
| 1109 | if (!channel->encoder_queue_is_active_) { |
| 1110 | return; |
| 1111 | } |
| 1112 | channel->ProcessAndEncodeAudioOnTaskQueue(audio_frame.get()); |
| 1113 | } |
| 1114 | std::unique_ptr<AudioFrame> audio_frame; |
| 1115 | ChannelSend* const channel; |
| 1116 | }; |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1117 | // Profile time between when the audio frame is added to the task queue and |
| 1118 | // when the task is actually executed. |
| 1119 | audio_frame->UpdateProfileTimeStamp(); |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 1120 | encoder_queue_.PostTask(ProcessAndEncodeAudio{std::move(audio_frame), this}); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1121 | } |
| 1122 | |
| 1123 | void ChannelSend::ProcessAndEncodeAudioOnTaskQueue(AudioFrame* audio_input) { |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1124 | RTC_DCHECK_GT(audio_input->samples_per_channel_, 0); |
henrika | d0679bd | 2019-07-09 15:37:45 +0200 | [diff] [blame] | 1125 | RTC_DCHECK_LE(audio_input->num_channels_, 8); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1126 | |
| 1127 | // Measure time between when the audio frame is added to the task queue and |
| 1128 | // when the task is actually executed. Goal is to keep track of unwanted |
| 1129 | // extra latency added by the task queue. |
| 1130 | RTC_HISTOGRAM_COUNTS_10000("WebRTC.Audio.EncodingTaskQueueLatencyMs", |
| 1131 | audio_input->ElapsedProfileTimeMs()); |
| 1132 | |
| 1133 | bool is_muted = InputMute(); |
| 1134 | AudioFrameOperations::Mute(audio_input, previous_frame_muted_, is_muted); |
| 1135 | |
| 1136 | if (_includeAudioLevelIndication) { |
| 1137 | size_t length = |
| 1138 | audio_input->samples_per_channel_ * audio_input->num_channels_; |
| 1139 | RTC_CHECK_LE(length, AudioFrame::kMaxDataSizeBytes); |
| 1140 | if (is_muted && previous_frame_muted_) { |
| 1141 | rms_level_.AnalyzeMuted(length); |
| 1142 | } else { |
| 1143 | rms_level_.Analyze( |
| 1144 | rtc::ArrayView<const int16_t>(audio_input->data(), length)); |
| 1145 | } |
| 1146 | } |
| 1147 | previous_frame_muted_ = is_muted; |
| 1148 | |
| 1149 | // Add 10ms of raw (PCM) audio data to the encoder @ 32kHz. |
| 1150 | |
| 1151 | // The ACM resamples internally. |
| 1152 | audio_input->timestamp_ = _timeStamp; |
| 1153 | // This call will trigger AudioPacketizationCallback::SendData if encoding |
| 1154 | // is done and payload is ready for packetization and transmission. |
| 1155 | // Otherwise, it will return without invoking the callback. |
| 1156 | if (audio_coding_->Add10MsData(*audio_input) < 0) { |
| 1157 | RTC_DLOG(LS_ERROR) << "ACM::Add10MsData() failed."; |
| 1158 | return; |
| 1159 | } |
| 1160 | |
| 1161 | _timeStamp += static_cast<uint32_t>(audio_input->samples_per_channel_); |
| 1162 | } |
| 1163 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1164 | ANAStats ChannelSend::GetANAStatistics() const { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 1165 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1166 | return audio_coding_->GetANAStats(); |
| 1167 | } |
| 1168 | |
| 1169 | RtpRtcp* ChannelSend::GetRtpRtcp() const { |
Sebastian Jansson | c01367d | 2019-04-08 15:20:44 +0200 | [diff] [blame] | 1170 | RTC_DCHECK(module_process_thread_checker_.IsCurrent()); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1171 | return _rtpRtcpModule.get(); |
| 1172 | } |
| 1173 | |
| 1174 | int ChannelSend::SetSendRtpHeaderExtension(bool enable, |
| 1175 | RTPExtensionType type, |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1176 | int id) { |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1177 | int error = 0; |
| 1178 | _rtpRtcpModule->DeregisterSendRtpHeaderExtension(type); |
| 1179 | if (enable) { |
Niels Möller | 2681523 | 2018-11-16 09:32:40 +0100 | [diff] [blame] | 1180 | // TODO(nisse): RtpRtcp::RegisterSendRtpHeaderExtension to take an int |
| 1181 | // argument. Currently it wants an uint8_t. |
| 1182 | error = _rtpRtcpModule->RegisterSendRtpHeaderExtension( |
| 1183 | type, rtc::dchecked_cast<uint8_t>(id)); |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1184 | } |
| 1185 | return error; |
| 1186 | } |
| 1187 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1188 | int64_t ChannelSend::GetRTT() const { |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 1189 | if (media_transport_config_.media_transport) { |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 1190 | // GetRTT is generally used in the RTCP codepath, where media transport is |
| 1191 | // not present and so it shouldn't be needed. But it's also invoked in |
| 1192 | // 'GetStats' method, and for now returning media transport RTT here gives |
| 1193 | // us "free" rtt stats for media transport. |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 1194 | auto target_rate = |
| 1195 | media_transport_config_.media_transport->GetLatestTargetTransferRate(); |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 1196 | if (target_rate.has_value()) { |
| 1197 | return target_rate.value().network_estimate.round_trip_time.ms(); |
| 1198 | } |
| 1199 | |
| 1200 | return 0; |
| 1201 | } |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1202 | RtcpMode method = _rtpRtcpModule->RTCP(); |
| 1203 | if (method == RtcpMode::kOff) { |
| 1204 | return 0; |
| 1205 | } |
| 1206 | std::vector<RTCPReportBlock> report_blocks; |
| 1207 | _rtpRtcpModule->RemoteRTCPStat(&report_blocks); |
| 1208 | |
| 1209 | if (report_blocks.empty()) { |
| 1210 | return 0; |
| 1211 | } |
| 1212 | |
| 1213 | int64_t rtt = 0; |
| 1214 | int64_t avg_rtt = 0; |
| 1215 | int64_t max_rtt = 0; |
| 1216 | int64_t min_rtt = 0; |
| 1217 | // We don't know in advance the remote ssrc used by the other end's receiver |
| 1218 | // reports, so use the SSRC of the first report block for calculating the RTT. |
| 1219 | if (_rtpRtcpModule->RTT(report_blocks[0].sender_ssrc, &rtt, &avg_rtt, |
| 1220 | &min_rtt, &max_rtt) != 0) { |
| 1221 | return 0; |
| 1222 | } |
| 1223 | return rtt; |
| 1224 | } |
| 1225 | |
Benjamin Wright | 78410ad | 2018-10-25 09:52:57 -0700 | [diff] [blame] | 1226 | void ChannelSend::SetFrameEncryptor( |
| 1227 | rtc::scoped_refptr<FrameEncryptorInterface> frame_encryptor) { |
Niels Möller | 26e88b0 | 2018-11-19 15:08:13 +0100 | [diff] [blame] | 1228 | RTC_DCHECK_RUN_ON(&worker_thread_checker_); |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 1229 | encoder_queue_.PostTask([this, frame_encryptor]() mutable { |
| 1230 | RTC_DCHECK_RUN_ON(&encoder_queue_); |
Sebastian Jansson | 7949f21 | 2019-03-05 13:41:48 +0000 | [diff] [blame] | 1231 | frame_encryptor_ = std::move(frame_encryptor); |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 1232 | }); |
Benjamin Wright | 84583f6 | 2018-10-04 14:22:34 -0700 | [diff] [blame] | 1233 | } |
| 1234 | |
Anton Sukhanov | 626015d | 2019-02-04 15:16:06 -0800 | [diff] [blame] | 1235 | // TODO(sukhanov): Consider moving TargetTransferRate observer to |
| 1236 | // AudioSendStream. Since AudioSendStream owns encoder and configures ANA, it |
| 1237 | // makes sense to consolidate all rate (and overhead) calculation there. |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 1238 | void ChannelSend::OnTargetTransferRate(TargetTransferRate rate) { |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 1239 | RTC_DCHECK(media_transport_config_.media_transport); |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 1240 | OnReceivedRtt(rate.network_estimate.round_trip_time.ms()); |
| 1241 | } |
| 1242 | |
| 1243 | void ChannelSend::OnReceivedRtt(int64_t rtt_ms) { |
| 1244 | // Invoke audio encoders OnReceivedRtt(). |
Sebastian Jansson | 14a7cf9 | 2019-02-13 15:11:42 +0100 | [diff] [blame] | 1245 | CallEncoder( |
| 1246 | [rtt_ms](AudioEncoder* encoder) { encoder->OnReceivedRtt(rtt_ms); }); |
Piotr (Peter) Slatala | 179a392 | 2018-11-16 09:57:58 -0800 | [diff] [blame] | 1247 | } |
| 1248 | |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 1249 | } // namespace |
| 1250 | |
| 1251 | std::unique_ptr<ChannelSendInterface> CreateChannelSend( |
Sebastian Jansson | 977b335 | 2019-03-04 17:43:34 +0100 | [diff] [blame] | 1252 | Clock* clock, |
Sebastian Jansson | 44dd9f2 | 2019-03-08 14:50:30 +0100 | [diff] [blame] | 1253 | TaskQueueFactory* task_queue_factory, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 1254 | ProcessThread* module_process_thread, |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 1255 | const MediaTransportConfig& media_transport_config, |
Anton Sukhanov | 626015d | 2019-02-04 15:16:06 -0800 | [diff] [blame] | 1256 | OverheadObserver* overhead_observer, |
Niels Möller | e977199 | 2018-11-26 10:55:07 +0100 | [diff] [blame] | 1257 | Transport* rtp_transport, |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 1258 | RtcpRttStats* rtcp_rtt_stats, |
| 1259 | RtcEventLog* rtc_event_log, |
| 1260 | FrameEncryptorInterface* frame_encryptor, |
| 1261 | const webrtc::CryptoOptions& crypto_options, |
| 1262 | bool extmap_allow_mixed, |
Erik Språng | 4c2c412 | 2019-07-11 15:20:15 +0200 | [diff] [blame] | 1263 | int rtcp_report_interval_ms, |
| 1264 | uint32_t ssrc) { |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 1265 | return absl::make_unique<ChannelSend>( |
Anton Sukhanov | 4f08faa | 2019-05-21 11:12:57 -0700 | [diff] [blame] | 1266 | clock, task_queue_factory, module_process_thread, media_transport_config, |
Sebastian Jansson | 977b335 | 2019-03-04 17:43:34 +0100 | [diff] [blame] | 1267 | overhead_observer, rtp_transport, rtcp_rtt_stats, rtc_event_log, |
| 1268 | frame_encryptor, crypto_options, extmap_allow_mixed, |
Erik Språng | 4c2c412 | 2019-07-11 15:20:15 +0200 | [diff] [blame] | 1269 | rtcp_report_interval_ms, ssrc); |
Niels Möller | dced9f6 | 2018-11-19 10:27:07 +0100 | [diff] [blame] | 1270 | } |
| 1271 | |
Niels Möller | 530ead4 | 2018-10-04 14:28:39 +0200 | [diff] [blame] | 1272 | } // namespace voe |
| 1273 | } // namespace webrtc |