andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [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 | |
pbos@webrtc.org | cbd78ae | 2013-05-29 14:27:38 +0000 | [diff] [blame] | 11 | #include "webrtc/modules/rtp_rtcp/source/rtcp_sender.h" |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 12 | |
pbos@webrtc.org | 3f45c2e | 2013-08-05 16:22:53 +0000 | [diff] [blame] | 13 | #include <assert.h> // assert |
| 14 | #include <stdlib.h> // rand |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 15 | #include <string.h> // memcpy |
| 16 | |
pbos@webrtc.org | 3f45c2e | 2013-08-05 16:22:53 +0000 | [diff] [blame] | 17 | #include <algorithm> // min |
| 18 | |
pbos@webrtc.org | cbd78ae | 2013-05-29 14:27:38 +0000 | [diff] [blame] | 19 | #include "webrtc/common_types.h" |
| 20 | #include "webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.h" |
| 21 | #include "webrtc/system_wrappers/interface/critical_section_wrapper.h" |
| 22 | #include "webrtc/system_wrappers/interface/trace.h" |
| 23 | #include "webrtc/system_wrappers/interface/trace_event.h" |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 24 | |
| 25 | namespace webrtc { |
| 26 | |
| 27 | using RTCPUtility::RTCPCnameInformation; |
| 28 | |
edjee@google.com | dded206 | 2013-04-04 19:43:34 +0000 | [diff] [blame] | 29 | NACKStringBuilder::NACKStringBuilder() : |
| 30 | _stream(""), _count(0), _consecutive(false) |
| 31 | { |
| 32 | // Empty. |
| 33 | } |
| 34 | |
pbos@webrtc.org | 9d71e28 | 2013-07-31 15:17:19 +0000 | [diff] [blame] | 35 | NACKStringBuilder::~NACKStringBuilder() {} |
| 36 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 37 | void NACKStringBuilder::PushNACK(uint16_t nack) |
edjee@google.com | dded206 | 2013-04-04 19:43:34 +0000 | [diff] [blame] | 38 | { |
| 39 | if (_count == 0) |
| 40 | { |
| 41 | _stream << nack; |
| 42 | } else if (nack == _prevNack + 1) |
| 43 | { |
| 44 | _consecutive = true; |
| 45 | } else |
| 46 | { |
| 47 | if (_consecutive) |
| 48 | { |
| 49 | _stream << "-" << _prevNack; |
| 50 | _consecutive = false; |
| 51 | } |
| 52 | _stream << "," << nack; |
| 53 | } |
| 54 | _count++; |
| 55 | _prevNack = nack; |
| 56 | } |
| 57 | |
| 58 | std::string NACKStringBuilder::GetResult() |
| 59 | { |
| 60 | if (_consecutive) |
| 61 | { |
| 62 | _stream << "-" << _prevNack; |
| 63 | _consecutive = false; |
| 64 | } |
| 65 | return _stream.str(); |
| 66 | } |
| 67 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 68 | RTCPSender::FeedbackState::FeedbackState(ModuleRtpRtcpImpl* module) |
| 69 | : send_payload_type(module->SendPayloadType()), |
| 70 | frequency_hz(module->CurrentSendFrequencyHz()), |
| 71 | packet_count_sent(module->PacketCountSent()), |
| 72 | byte_count_sent(module->ByteCountSent()), |
| 73 | module(module) { |
| 74 | uint32_t last_ntp_secs = 0, last_ntp_frac = 0, last_remote_sr = 0; |
| 75 | module->LastReceivedNTP(last_ntp_secs, last_ntp_frac, last_remote_sr); |
| 76 | last_rr_ntp_secs = last_ntp_secs; |
| 77 | last_rr_ntp_frac = last_ntp_frac; |
| 78 | remote_sr = last_remote_sr; |
| 79 | |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 80 | has_last_xr_rr = module->LastReceivedXrReferenceTimeInfo(&last_xr_rr); |
| 81 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 82 | uint32_t send_bitrate = 0, tmp; |
| 83 | module->BitrateSent(&send_bitrate, &tmp, &tmp, &tmp); |
| 84 | this->send_bitrate = send_bitrate; |
| 85 | } |
| 86 | |
| 87 | RTCPSender::FeedbackState::FeedbackState() |
| 88 | : send_payload_type(0), |
| 89 | frequency_hz(0), |
| 90 | packet_count_sent(0), |
| 91 | byte_count_sent(0), |
| 92 | send_bitrate(0), |
| 93 | last_rr_ntp_secs(0), |
| 94 | last_rr_ntp_frac(0), |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 95 | remote_sr(0), |
| 96 | has_last_xr_rr(false) {} |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 97 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 98 | RTCPSender::RTCPSender(const int32_t id, |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 99 | const bool audio, |
stefan@webrtc.org | 9858fc8 | 2013-01-17 14:01:20 +0000 | [diff] [blame] | 100 | Clock* clock, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 101 | ReceiveStatistics* receive_statistics) : |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 102 | _id(id), |
| 103 | _audio(audio), |
stefan@webrtc.org | 1bb2146 | 2013-01-21 07:42:11 +0000 | [diff] [blame] | 104 | _clock(clock), |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 105 | _method(kRtcpOff), |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 106 | _criticalSectionTransport(CriticalSectionWrapper::CreateCriticalSection()), |
| 107 | _cbTransport(NULL), |
| 108 | |
| 109 | _criticalSectionRTCPSender(CriticalSectionWrapper::CreateCriticalSection()), |
| 110 | _usingNack(false), |
| 111 | _sending(false), |
| 112 | _sendTMMBN(false), |
| 113 | _REMB(false), |
| 114 | _sendREMB(false), |
| 115 | _TMMBR(false), |
| 116 | _IJ(false), |
| 117 | _nextTimeToSendRTCP(0), |
| 118 | start_timestamp_(0), |
| 119 | last_rtp_timestamp_(0), |
| 120 | last_frame_capture_time_ms_(-1), |
| 121 | _SSRC(0), |
| 122 | _remoteSSRC(0), |
| 123 | _CNAME(), |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 124 | receive_statistics_(receive_statistics), |
| 125 | internal_report_blocks_(), |
| 126 | external_report_blocks_(), |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 127 | _csrcCNAMEs(), |
| 128 | |
stefan@webrtc.org | 73ebe67 | 2013-04-09 14:56:29 +0000 | [diff] [blame] | 129 | _cameraDelayMS(0), |
| 130 | |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 131 | _lastSendReport(), |
| 132 | _lastRTCPTime(), |
| 133 | |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 134 | last_xr_rr_(), |
| 135 | |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 136 | _CSRCs(0), |
| 137 | _CSRC(), |
| 138 | _includeCSRCs(true), |
| 139 | |
| 140 | _sequenceNumberFIR(0), |
| 141 | |
| 142 | _lengthRembSSRC(0), |
| 143 | _sizeRembSSRC(0), |
| 144 | _rembSSRC(NULL), |
| 145 | _rembBitrate(0), |
| 146 | |
| 147 | _tmmbrHelp(), |
| 148 | _tmmbr_Send(0), |
| 149 | _packetOH_Send(0), |
| 150 | |
| 151 | _appSend(false), |
| 152 | _appSubType(0), |
| 153 | _appName(), |
| 154 | _appData(NULL), |
| 155 | _appLength(0), |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 156 | |
| 157 | xrSendReceiverReferenceTimeEnabled_(false), |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 158 | _xrSendVoIPMetric(false), |
edjee@google.com | dded206 | 2013-04-04 19:43:34 +0000 | [diff] [blame] | 159 | _xrVoIPMetric(), |
| 160 | _nackCount(0), |
| 161 | _pliCount(0), |
| 162 | _fullIntraRequestCount(0) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 163 | { |
| 164 | memset(_CNAME, 0, sizeof(_CNAME)); |
| 165 | memset(_lastSendReport, 0, sizeof(_lastSendReport)); |
| 166 | memset(_lastRTCPTime, 0, sizeof(_lastRTCPTime)); |
| 167 | |
| 168 | WEBRTC_TRACE(kTraceMemory, kTraceRtpRtcp, id, "%s created", __FUNCTION__); |
| 169 | } |
| 170 | |
| 171 | RTCPSender::~RTCPSender() { |
| 172 | delete [] _rembSSRC; |
| 173 | delete [] _appData; |
| 174 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 175 | while (!internal_report_blocks_.empty()) { |
| 176 | delete internal_report_blocks_.begin()->second; |
| 177 | internal_report_blocks_.erase(internal_report_blocks_.begin()); |
| 178 | } |
| 179 | while (!external_report_blocks_.empty()) { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 180 | std::map<uint32_t, RTCPReportBlock*>::iterator it = |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 181 | external_report_blocks_.begin(); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 182 | delete it->second; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 183 | external_report_blocks_.erase(it); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 184 | } |
| 185 | while (!_csrcCNAMEs.empty()) { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 186 | std::map<uint32_t, RTCPCnameInformation*>::iterator it = |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 187 | _csrcCNAMEs.begin(); |
| 188 | delete it->second; |
| 189 | _csrcCNAMEs.erase(it); |
| 190 | } |
| 191 | delete _criticalSectionTransport; |
| 192 | delete _criticalSectionRTCPSender; |
| 193 | |
| 194 | WEBRTC_TRACE(kTraceMemory, kTraceRtpRtcp, _id, "%s deleted", __FUNCTION__); |
| 195 | } |
| 196 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 197 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 198 | RTCPSender::Init() |
| 199 | { |
| 200 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 201 | |
| 202 | _method = kRtcpOff; |
| 203 | _cbTransport = NULL; |
| 204 | _usingNack = false; |
| 205 | _sending = false; |
| 206 | _sendTMMBN = false; |
| 207 | _TMMBR = false; |
| 208 | _IJ = false; |
| 209 | _REMB = false; |
| 210 | _sendREMB = false; |
| 211 | last_rtp_timestamp_ = 0; |
| 212 | last_frame_capture_time_ms_ = -1; |
| 213 | start_timestamp_ = -1; |
| 214 | _SSRC = 0; |
| 215 | _remoteSSRC = 0; |
stefan@webrtc.org | 73ebe67 | 2013-04-09 14:56:29 +0000 | [diff] [blame] | 216 | _cameraDelayMS = 0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 217 | _sequenceNumberFIR = 0; |
| 218 | _tmmbr_Send = 0; |
| 219 | _packetOH_Send = 0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 220 | _nextTimeToSendRTCP = 0; |
| 221 | _CSRCs = 0; |
| 222 | _appSend = false; |
| 223 | _appSubType = 0; |
| 224 | |
| 225 | if(_appData) |
| 226 | { |
| 227 | delete [] _appData; |
| 228 | _appData = NULL; |
| 229 | } |
| 230 | _appLength = 0; |
| 231 | |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 232 | xrSendReceiverReferenceTimeEnabled_ = false; |
| 233 | |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 234 | _xrSendVoIPMetric = false; |
| 235 | |
| 236 | memset(&_xrVoIPMetric, 0, sizeof(_xrVoIPMetric)); |
| 237 | memset(_CNAME, 0, sizeof(_CNAME)); |
| 238 | memset(_lastSendReport, 0, sizeof(_lastSendReport)); |
| 239 | memset(_lastRTCPTime, 0, sizeof(_lastRTCPTime)); |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 240 | last_xr_rr_.clear(); |
edjee@google.com | dded206 | 2013-04-04 19:43:34 +0000 | [diff] [blame] | 241 | |
| 242 | _nackCount = 0; |
| 243 | _pliCount = 0; |
| 244 | _fullIntraRequestCount = 0; |
| 245 | |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | void |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 250 | RTCPSender::ChangeUniqueId(const int32_t id) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 251 | { |
| 252 | _id = id; |
| 253 | } |
| 254 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 255 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 256 | RTCPSender::RegisterSendTransport(Transport* outgoingTransport) |
| 257 | { |
| 258 | CriticalSectionScoped lock(_criticalSectionTransport); |
| 259 | _cbTransport = outgoingTransport; |
| 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | RTCPMethod |
| 264 | RTCPSender::Status() const |
| 265 | { |
| 266 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 267 | return _method; |
| 268 | } |
| 269 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 270 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 271 | RTCPSender::SetRTCPStatus(const RTCPMethod method) |
| 272 | { |
| 273 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 274 | if(method != kRtcpOff) |
| 275 | { |
| 276 | if(_audio) |
| 277 | { |
stefan@webrtc.org | 1bb2146 | 2013-01-21 07:42:11 +0000 | [diff] [blame] | 278 | _nextTimeToSendRTCP = _clock->TimeInMilliseconds() + |
stefan@webrtc.org | 9858fc8 | 2013-01-17 14:01:20 +0000 | [diff] [blame] | 279 | (RTCP_INTERVAL_AUDIO_MS/2); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 280 | } else |
| 281 | { |
stefan@webrtc.org | 1bb2146 | 2013-01-21 07:42:11 +0000 | [diff] [blame] | 282 | _nextTimeToSendRTCP = _clock->TimeInMilliseconds() + |
stefan@webrtc.org | 9858fc8 | 2013-01-17 14:01:20 +0000 | [diff] [blame] | 283 | (RTCP_INTERVAL_VIDEO_MS/2); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 284 | } |
| 285 | } |
| 286 | _method = method; |
| 287 | return 0; |
| 288 | } |
| 289 | |
| 290 | bool |
| 291 | RTCPSender::Sending() const |
| 292 | { |
| 293 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 294 | return _sending; |
| 295 | } |
| 296 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 297 | int32_t |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 298 | RTCPSender::SetSendingStatus(const FeedbackState& feedback_state, bool sending) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 299 | { |
| 300 | bool sendRTCPBye = false; |
| 301 | { |
| 302 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 303 | |
| 304 | if(_method != kRtcpOff) |
| 305 | { |
| 306 | if(sending == false && _sending == true) |
| 307 | { |
| 308 | // Trigger RTCP bye |
| 309 | sendRTCPBye = true; |
| 310 | } |
| 311 | } |
| 312 | _sending = sending; |
| 313 | } |
| 314 | if(sendRTCPBye) |
| 315 | { |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 316 | return SendRTCP(feedback_state, kRtcpBye); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 317 | } |
| 318 | return 0; |
| 319 | } |
| 320 | |
| 321 | bool |
| 322 | RTCPSender::REMB() const |
| 323 | { |
| 324 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 325 | return _REMB; |
| 326 | } |
| 327 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 328 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 329 | RTCPSender::SetREMBStatus(const bool enable) |
| 330 | { |
| 331 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 332 | _REMB = enable; |
| 333 | return 0; |
| 334 | } |
| 335 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 336 | int32_t |
| 337 | RTCPSender::SetREMBData(const uint32_t bitrate, |
| 338 | const uint8_t numberOfSSRC, |
| 339 | const uint32_t* SSRC) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 340 | { |
| 341 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 342 | _rembBitrate = bitrate; |
| 343 | |
| 344 | if(_sizeRembSSRC < numberOfSSRC) |
| 345 | { |
| 346 | delete [] _rembSSRC; |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 347 | _rembSSRC = new uint32_t[numberOfSSRC]; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 348 | _sizeRembSSRC = numberOfSSRC; |
| 349 | } |
| 350 | |
| 351 | _lengthRembSSRC = numberOfSSRC; |
| 352 | for (int i = 0; i < numberOfSSRC; i++) |
| 353 | { |
| 354 | _rembSSRC[i] = SSRC[i]; |
| 355 | } |
| 356 | _sendREMB = true; |
| 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | bool |
| 361 | RTCPSender::TMMBR() const |
| 362 | { |
| 363 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 364 | return _TMMBR; |
| 365 | } |
| 366 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 367 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 368 | RTCPSender::SetTMMBRStatus(const bool enable) |
| 369 | { |
| 370 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 371 | _TMMBR = enable; |
| 372 | return 0; |
| 373 | } |
| 374 | |
| 375 | bool |
| 376 | RTCPSender::IJ() const |
| 377 | { |
| 378 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 379 | return _IJ; |
| 380 | } |
| 381 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 382 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 383 | RTCPSender::SetIJStatus(const bool enable) |
| 384 | { |
| 385 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 386 | _IJ = enable; |
| 387 | return 0; |
| 388 | } |
| 389 | |
| 390 | void RTCPSender::SetStartTimestamp(uint32_t start_timestamp) { |
| 391 | start_timestamp_ = start_timestamp; |
| 392 | } |
| 393 | |
| 394 | void RTCPSender::SetLastRtpTime(uint32_t rtp_timestamp, |
| 395 | int64_t capture_time_ms) { |
henrika@webrtc.org | 1d25eac | 2013-04-05 14:34:57 +0000 | [diff] [blame] | 396 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 397 | last_rtp_timestamp_ = rtp_timestamp; |
| 398 | if (capture_time_ms < 0) { |
| 399 | // We don't currently get a capture time from VoiceEngine. |
stefan@webrtc.org | 73ebe67 | 2013-04-09 14:56:29 +0000 | [diff] [blame] | 400 | last_frame_capture_time_ms_ = _clock->TimeInMilliseconds(); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 401 | } else { |
| 402 | last_frame_capture_time_ms_ = capture_time_ms; |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | void |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 407 | RTCPSender::SetSSRC( const uint32_t ssrc) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 408 | { |
| 409 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 410 | |
| 411 | if(_SSRC != 0) |
| 412 | { |
| 413 | // not first SetSSRC, probably due to a collision |
| 414 | // schedule a new RTCP report |
| 415 | // make sure that we send a RTP packet |
stefan@webrtc.org | 1bb2146 | 2013-01-21 07:42:11 +0000 | [diff] [blame] | 416 | _nextTimeToSendRTCP = _clock->TimeInMilliseconds() + 100; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 417 | } |
| 418 | _SSRC = ssrc; |
| 419 | } |
| 420 | |
wu@webrtc.org | 7fc75bb | 2013-08-15 23:38:54 +0000 | [diff] [blame] | 421 | void RTCPSender::SetRemoteSSRC(uint32_t ssrc) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 422 | { |
| 423 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 424 | _remoteSSRC = ssrc; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 425 | } |
| 426 | |
stefan@webrtc.org | 73ebe67 | 2013-04-09 14:56:29 +0000 | [diff] [blame] | 427 | int32_t |
| 428 | RTCPSender::SetCameraDelay(const int32_t delayMS) |
| 429 | { |
| 430 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 431 | if(delayMS > 1000 || delayMS < -1000) |
| 432 | { |
| 433 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, "%s invalid argument, delay can't be larger than 1 sec", __FUNCTION__); |
| 434 | return -1; |
| 435 | } |
| 436 | _cameraDelayMS = delayMS; |
| 437 | return 0; |
| 438 | } |
| 439 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 440 | int32_t RTCPSender::CNAME(char cName[RTCP_CNAME_SIZE]) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 441 | assert(cName); |
| 442 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 443 | cName[RTCP_CNAME_SIZE - 1] = 0; |
| 444 | strncpy(cName, _CNAME, RTCP_CNAME_SIZE - 1); |
| 445 | return 0; |
| 446 | } |
| 447 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 448 | int32_t RTCPSender::SetCNAME(const char cName[RTCP_CNAME_SIZE]) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 449 | if (!cName) |
| 450 | return -1; |
| 451 | |
| 452 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 453 | _CNAME[RTCP_CNAME_SIZE - 1] = 0; |
| 454 | strncpy(_CNAME, cName, RTCP_CNAME_SIZE - 1); |
| 455 | return 0; |
| 456 | } |
| 457 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 458 | int32_t RTCPSender::AddMixedCNAME(const uint32_t SSRC, |
| 459 | const char cName[RTCP_CNAME_SIZE]) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 460 | assert(cName); |
| 461 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 462 | if (_csrcCNAMEs.size() >= kRtpCsrcSize) { |
| 463 | return -1; |
| 464 | } |
| 465 | RTCPCnameInformation* ptr = new RTCPCnameInformation(); |
| 466 | ptr->name[RTCP_CNAME_SIZE - 1] = 0; |
| 467 | strncpy(ptr->name, cName, RTCP_CNAME_SIZE - 1); |
| 468 | _csrcCNAMEs[SSRC] = ptr; |
| 469 | return 0; |
| 470 | } |
| 471 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 472 | int32_t RTCPSender::RemoveMixedCNAME(const uint32_t SSRC) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 473 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 474 | std::map<uint32_t, RTCPCnameInformation*>::iterator it = |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 475 | _csrcCNAMEs.find(SSRC); |
| 476 | |
| 477 | if (it == _csrcCNAMEs.end()) { |
| 478 | return -1; |
| 479 | } |
| 480 | delete it->second; |
| 481 | _csrcCNAMEs.erase(it); |
| 482 | return 0; |
| 483 | } |
| 484 | |
| 485 | bool |
| 486 | RTCPSender::TimeToSendRTCPReport(const bool sendKeyframeBeforeRTP) const |
| 487 | { |
| 488 | /* |
| 489 | For audio we use a fix 5 sec interval |
| 490 | |
| 491 | For video we use 1 sec interval fo a BW smaller than 360 kbit/s, |
| 492 | technicaly we break the max 5% RTCP BW for video below 10 kbit/s but that should be extreamly rare |
| 493 | |
| 494 | |
| 495 | From RFC 3550 |
| 496 | |
| 497 | MAX RTCP BW is 5% if the session BW |
| 498 | A send report is approximately 65 bytes inc CNAME |
| 499 | A report report is approximately 28 bytes |
| 500 | |
| 501 | The RECOMMENDED value for the reduced minimum in seconds is 360 |
| 502 | divided by the session bandwidth in kilobits/second. This minimum |
| 503 | is smaller than 5 seconds for bandwidths greater than 72 kb/s. |
| 504 | |
| 505 | If the participant has not yet sent an RTCP packet (the variable |
| 506 | initial is true), the constant Tmin is set to 2.5 seconds, else it |
| 507 | is set to 5 seconds. |
| 508 | |
| 509 | The interval between RTCP packets is varied randomly over the |
| 510 | range [0.5,1.5] times the calculated interval to avoid unintended |
| 511 | synchronization of all participants |
| 512 | |
| 513 | if we send |
| 514 | If the participant is a sender (we_sent true), the constant C is |
| 515 | set to the average RTCP packet size (avg_rtcp_size) divided by 25% |
| 516 | of the RTCP bandwidth (rtcp_bw), and the constant n is set to the |
| 517 | number of senders. |
| 518 | |
| 519 | if we receive only |
| 520 | If we_sent is not true, the constant C is set |
| 521 | to the average RTCP packet size divided by 75% of the RTCP |
| 522 | bandwidth. The constant n is set to the number of receivers |
| 523 | (members - senders). If the number of senders is greater than |
| 524 | 25%, senders and receivers are treated together. |
| 525 | |
| 526 | reconsideration NOT required for peer-to-peer |
| 527 | "timer reconsideration" is |
| 528 | employed. This algorithm implements a simple back-off mechanism |
| 529 | which causes users to hold back RTCP packet transmission if the |
| 530 | group sizes are increasing. |
| 531 | |
| 532 | n = number of members |
| 533 | C = avg_size/(rtcpBW/4) |
| 534 | |
| 535 | 3. The deterministic calculated interval Td is set to max(Tmin, n*C). |
| 536 | |
| 537 | 4. The calculated interval T is set to a number uniformly distributed |
| 538 | between 0.5 and 1.5 times the deterministic calculated interval. |
| 539 | |
| 540 | 5. The resulting value of T is divided by e-3/2=1.21828 to compensate |
| 541 | for the fact that the timer reconsideration algorithm converges to |
| 542 | a value of the RTCP bandwidth below the intended average |
| 543 | */ |
| 544 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 545 | int64_t now = _clock->TimeInMilliseconds(); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 546 | |
| 547 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 548 | |
| 549 | if(_method == kRtcpOff) |
| 550 | { |
| 551 | return false; |
| 552 | } |
| 553 | |
| 554 | if(!_audio && sendKeyframeBeforeRTP) |
| 555 | { |
| 556 | // for video key-frames we want to send the RTCP before the large key-frame |
| 557 | // if we have a 100 ms margin |
| 558 | now += RTCP_SEND_BEFORE_KEY_FRAME_MS; |
| 559 | } |
| 560 | |
| 561 | if(now > _nextTimeToSendRTCP) |
| 562 | { |
| 563 | return true; |
| 564 | |
| 565 | } else if(now < 0x0000ffff && _nextTimeToSendRTCP > 0xffff0000) // 65 sec margin |
| 566 | { |
| 567 | // wrap |
| 568 | return true; |
| 569 | } |
| 570 | return false; |
| 571 | } |
| 572 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 573 | uint32_t |
| 574 | RTCPSender::LastSendReport( uint32_t& lastRTCPTime) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 575 | { |
| 576 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 577 | |
| 578 | lastRTCPTime = _lastRTCPTime[0]; |
| 579 | return _lastSendReport[0]; |
| 580 | } |
| 581 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 582 | uint32_t |
| 583 | RTCPSender::SendTimeOfSendReport(const uint32_t sendReport) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 584 | { |
| 585 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 586 | |
| 587 | // This is only saved when we are the sender |
| 588 | if((_lastSendReport[0] == 0) || (sendReport == 0)) |
| 589 | { |
| 590 | return 0; // will be ignored |
| 591 | } else |
| 592 | { |
| 593 | for(int i = 0; i < RTCP_NUMBER_OF_SR; ++i) |
| 594 | { |
| 595 | if( _lastSendReport[i] == sendReport) |
| 596 | { |
| 597 | return _lastRTCPTime[i]; |
| 598 | } |
| 599 | } |
| 600 | } |
| 601 | return 0; |
| 602 | } |
| 603 | |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 604 | bool RTCPSender::SendTimeOfXrRrReport(uint32_t mid_ntp, |
| 605 | int64_t* time_ms) const { |
| 606 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 607 | |
| 608 | if (last_xr_rr_.empty()) { |
| 609 | return false; |
| 610 | } |
| 611 | std::map<uint32_t, int64_t>::const_iterator it = last_xr_rr_.find(mid_ntp); |
| 612 | if (it == last_xr_rr_.end()) { |
| 613 | return false; |
| 614 | } |
| 615 | *time_ms = it->second; |
| 616 | return true; |
| 617 | } |
| 618 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 619 | int32_t RTCPSender::AddExternalReportBlock( |
| 620 | uint32_t SSRC, |
| 621 | const RTCPReportBlock* reportBlock) { |
| 622 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 623 | return AddReportBlock(SSRC, &external_report_blocks_, reportBlock); |
| 624 | } |
| 625 | |
| 626 | int32_t RTCPSender::AddReportBlock( |
| 627 | uint32_t SSRC, |
| 628 | std::map<uint32_t, RTCPReportBlock*>* report_blocks, |
| 629 | const RTCPReportBlock* reportBlock) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 630 | if (reportBlock == NULL) { |
| 631 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, |
| 632 | "%s invalid argument", __FUNCTION__); |
| 633 | return -1; |
| 634 | } |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 635 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 636 | if (report_blocks->size() >= RTCP_MAX_REPORT_BLOCKS) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 637 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, |
| 638 | "%s invalid argument", __FUNCTION__); |
| 639 | return -1; |
| 640 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 641 | std::map<uint32_t, RTCPReportBlock*>::iterator it = |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 642 | report_blocks->find(SSRC); |
| 643 | if (it != report_blocks->end()) { |
stefan@webrtc.org | cf4441c | 2012-12-03 14:01:46 +0000 | [diff] [blame] | 644 | delete it->second; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 645 | report_blocks->erase(it); |
stefan@webrtc.org | cf4441c | 2012-12-03 14:01:46 +0000 | [diff] [blame] | 646 | } |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 647 | RTCPReportBlock* copyReportBlock = new RTCPReportBlock(); |
| 648 | memcpy(copyReportBlock, reportBlock, sizeof(RTCPReportBlock)); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 649 | (*report_blocks)[SSRC] = copyReportBlock; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 650 | return 0; |
| 651 | } |
| 652 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 653 | int32_t RTCPSender::RemoveExternalReportBlock(uint32_t SSRC) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 654 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 655 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 656 | std::map<uint32_t, RTCPReportBlock*>::iterator it = |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 657 | external_report_blocks_.find(SSRC); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 658 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 659 | if (it == external_report_blocks_.end()) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 660 | return -1; |
| 661 | } |
| 662 | delete it->second; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 663 | external_report_blocks_.erase(it); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 664 | return 0; |
| 665 | } |
| 666 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 667 | int32_t RTCPSender::BuildSR(const FeedbackState& feedback_state, |
| 668 | uint8_t* rtcpbuffer, |
| 669 | int& pos, |
| 670 | uint32_t NTPsec, |
| 671 | uint32_t NTPfrac) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 672 | { |
| 673 | // sanity |
| 674 | if(pos + 52 >= IP_PACKET_SIZE) |
| 675 | { |
| 676 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, "%s invalid argument", __FUNCTION__); |
| 677 | return -2; |
| 678 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 679 | uint32_t RTPtime; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 680 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 681 | uint32_t posNumberOfReportBlocks = pos; |
| 682 | rtcpbuffer[pos++]=(uint8_t)0x80; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 683 | |
| 684 | // Sender report |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 685 | rtcpbuffer[pos++]=(uint8_t)200; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 686 | |
| 687 | for(int i = (RTCP_NUMBER_OF_SR-2); i >= 0; i--) |
| 688 | { |
| 689 | // shift old |
| 690 | _lastSendReport[i+1] = _lastSendReport[i]; |
| 691 | _lastRTCPTime[i+1] =_lastRTCPTime[i]; |
| 692 | } |
| 693 | |
stefan@webrtc.org | 9b53152 | 2013-04-12 11:56:23 +0000 | [diff] [blame] | 694 | _lastRTCPTime[0] = Clock::NtpToMs(NTPsec, NTPfrac); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 695 | _lastSendReport[0] = (NTPsec << 16) + (NTPfrac >> 16); |
| 696 | |
stefan@webrtc.org | 73ebe67 | 2013-04-09 14:56:29 +0000 | [diff] [blame] | 697 | // The timestamp of this RTCP packet should be estimated as the timestamp of |
| 698 | // the frame being captured at this moment. We are calculating that |
| 699 | // timestamp as the last frame's timestamp + the time since the last frame |
| 700 | // was captured. |
| 701 | { |
| 702 | // Needs protection since this method is called on the process thread. |
| 703 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 704 | RTPtime = start_timestamp_ + last_rtp_timestamp_ + ( |
| 705 | _clock->TimeInMilliseconds() - last_frame_capture_time_ms_) * |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 706 | (feedback_state.frequency_hz / 1000); |
stefan@webrtc.org | 73ebe67 | 2013-04-09 14:56:29 +0000 | [diff] [blame] | 707 | } |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 708 | |
| 709 | // Add sender data |
| 710 | // Save for our length field |
| 711 | pos++; |
| 712 | pos++; |
| 713 | |
| 714 | // Add our own SSRC |
| 715 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 716 | pos += 4; |
| 717 | // NTP |
| 718 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, NTPsec); |
| 719 | pos += 4; |
| 720 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, NTPfrac); |
| 721 | pos += 4; |
| 722 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, RTPtime); |
| 723 | pos += 4; |
| 724 | |
| 725 | //sender's packet count |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 726 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, |
| 727 | feedback_state.packet_count_sent); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 728 | pos += 4; |
| 729 | |
| 730 | //sender's octet count |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 731 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, |
| 732 | feedback_state.byte_count_sent); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 733 | pos += 4; |
| 734 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 735 | uint8_t numberOfReportBlocks = 0; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 736 | int32_t retVal = WriteAllReportBlocksToBuffer(rtcpbuffer, pos, |
| 737 | numberOfReportBlocks, |
| 738 | NTPsec, NTPfrac); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 739 | if(retVal < 0) |
| 740 | { |
| 741 | // |
| 742 | return retVal ; |
| 743 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 744 | pos = retVal; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 745 | rtcpbuffer[posNumberOfReportBlocks] += numberOfReportBlocks; |
| 746 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 747 | uint16_t len = uint16_t((pos/4) -1); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 748 | ModuleRTPUtility::AssignUWord16ToBuffer(rtcpbuffer+2, len); |
| 749 | return 0; |
| 750 | } |
| 751 | |
| 752 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 753 | int32_t RTCPSender::BuildSDEC(uint8_t* rtcpbuffer, int& pos) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 754 | size_t lengthCname = strlen(_CNAME); |
| 755 | assert(lengthCname < RTCP_CNAME_SIZE); |
| 756 | |
| 757 | // sanity |
| 758 | if(pos + 12 + lengthCname >= IP_PACKET_SIZE) { |
| 759 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, |
| 760 | "%s invalid argument", __FUNCTION__); |
| 761 | return -2; |
| 762 | } |
| 763 | // SDEC Source Description |
| 764 | |
| 765 | // We always need to add SDES CNAME |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 766 | rtcpbuffer[pos++] = static_cast<uint8_t>(0x80 + 1 + _csrcCNAMEs.size()); |
| 767 | rtcpbuffer[pos++] = static_cast<uint8_t>(202); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 768 | |
| 769 | // handle SDES length later on |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 770 | uint32_t SDESLengthPos = pos; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 771 | pos++; |
| 772 | pos++; |
| 773 | |
| 774 | // Add our own SSRC |
| 775 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 776 | pos += 4; |
| 777 | |
| 778 | // CNAME = 1 |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 779 | rtcpbuffer[pos++] = static_cast<uint8_t>(1); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 780 | |
| 781 | // |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 782 | rtcpbuffer[pos++] = static_cast<uint8_t>(lengthCname); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 783 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 784 | uint16_t SDESLength = 10; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 785 | |
| 786 | memcpy(&rtcpbuffer[pos], _CNAME, lengthCname); |
| 787 | pos += lengthCname; |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 788 | SDESLength += (uint16_t)lengthCname; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 789 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 790 | uint16_t padding = 0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 791 | // We must have a zero field even if we have an even multiple of 4 bytes |
| 792 | if ((pos % 4) == 0) { |
| 793 | padding++; |
| 794 | rtcpbuffer[pos++]=0; |
| 795 | } |
| 796 | while ((pos % 4) != 0) { |
| 797 | padding++; |
| 798 | rtcpbuffer[pos++]=0; |
| 799 | } |
| 800 | SDESLength += padding; |
| 801 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 802 | std::map<uint32_t, RTCPUtility::RTCPCnameInformation*>::iterator it = |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 803 | _csrcCNAMEs.begin(); |
| 804 | |
| 805 | for(; it != _csrcCNAMEs.end(); it++) { |
| 806 | RTCPCnameInformation* cname = it->second; |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 807 | uint32_t SSRC = it->first; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 808 | |
| 809 | // Add SSRC |
| 810 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, SSRC); |
| 811 | pos += 4; |
| 812 | |
| 813 | // CNAME = 1 |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 814 | rtcpbuffer[pos++] = static_cast<uint8_t>(1); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 815 | |
| 816 | size_t length = strlen(cname->name); |
| 817 | assert(length < RTCP_CNAME_SIZE); |
| 818 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 819 | rtcpbuffer[pos++]= static_cast<uint8_t>(length); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 820 | SDESLength += 6; |
| 821 | |
| 822 | memcpy(&rtcpbuffer[pos],cname->name, length); |
| 823 | |
| 824 | pos += length; |
| 825 | SDESLength += length; |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 826 | uint16_t padding = 0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 827 | |
| 828 | // We must have a zero field even if we have an even multiple of 4 bytes |
| 829 | if((pos % 4) == 0){ |
| 830 | padding++; |
| 831 | rtcpbuffer[pos++]=0; |
| 832 | } |
| 833 | while((pos % 4) != 0){ |
| 834 | padding++; |
| 835 | rtcpbuffer[pos++] = 0; |
| 836 | } |
| 837 | SDESLength += padding; |
| 838 | } |
| 839 | // in 32-bit words minus one and we don't count the header |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 840 | uint16_t buffer_length = (SDESLength / 4) - 1; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 841 | ModuleRTPUtility::AssignUWord16ToBuffer(rtcpbuffer + SDESLengthPos, |
| 842 | buffer_length); |
| 843 | return 0; |
| 844 | } |
| 845 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 846 | int32_t |
| 847 | RTCPSender::BuildRR(uint8_t* rtcpbuffer, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 848 | int& pos, |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 849 | const uint32_t NTPsec, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 850 | const uint32_t NTPfrac) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 851 | { |
| 852 | // sanity one block |
| 853 | if(pos + 32 >= IP_PACKET_SIZE) |
| 854 | { |
| 855 | return -2; |
| 856 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 857 | uint32_t posNumberOfReportBlocks = pos; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 858 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 859 | rtcpbuffer[pos++]=(uint8_t)0x80; |
| 860 | rtcpbuffer[pos++]=(uint8_t)201; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 861 | |
| 862 | // Save for our length field |
| 863 | pos++; |
| 864 | pos++; |
| 865 | |
| 866 | // Add our own SSRC |
| 867 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 868 | pos += 4; |
| 869 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 870 | uint8_t numberOfReportBlocks = 0; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 871 | int retVal = WriteAllReportBlocksToBuffer(rtcpbuffer, pos, |
| 872 | numberOfReportBlocks, |
| 873 | NTPsec, NTPfrac); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 874 | if(retVal < 0) |
| 875 | { |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 876 | return pos; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 877 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 878 | pos = retVal; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 879 | rtcpbuffer[posNumberOfReportBlocks] += numberOfReportBlocks; |
| 880 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 881 | uint16_t len = uint16_t((pos)/4 -1); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 882 | ModuleRTPUtility::AssignUWord16ToBuffer(rtcpbuffer+2, len); |
| 883 | return 0; |
| 884 | } |
| 885 | |
| 886 | // From RFC 5450: Transmission Time Offsets in RTP Streams. |
| 887 | // 0 1 2 3 |
| 888 | // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| 889 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 890 | // hdr |V=2|P| RC | PT=IJ=195 | length | |
| 891 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 892 | // | inter-arrival jitter | |
| 893 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 894 | // . . |
| 895 | // . . |
| 896 | // . . |
| 897 | // | inter-arrival jitter | |
| 898 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 899 | // |
| 900 | // If present, this RTCP packet must be placed after a receiver report |
| 901 | // (inside a compound RTCP packet), and MUST have the same value for RC |
| 902 | // (reception report count) as the receiver report. |
| 903 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 904 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 905 | RTCPSender::BuildExtendedJitterReport( |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 906 | uint8_t* rtcpbuffer, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 907 | int& pos, |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 908 | const uint32_t jitterTransmissionTimeOffset) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 909 | { |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 910 | if (external_report_blocks_.size() > 0) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 911 | { |
| 912 | WEBRTC_TRACE(kTraceWarning, kTraceRtpRtcp, _id, "Not implemented."); |
| 913 | return 0; |
| 914 | } |
| 915 | |
| 916 | // sanity |
| 917 | if(pos + 8 >= IP_PACKET_SIZE) |
| 918 | { |
| 919 | return -2; |
| 920 | } |
| 921 | // add picture loss indicator |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 922 | uint8_t RC = 1; |
| 923 | rtcpbuffer[pos++]=(uint8_t)0x80 + RC; |
| 924 | rtcpbuffer[pos++]=(uint8_t)195; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 925 | |
| 926 | // Used fixed length of 2 |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 927 | rtcpbuffer[pos++]=(uint8_t)0; |
| 928 | rtcpbuffer[pos++]=(uint8_t)(1); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 929 | |
| 930 | // Add inter-arrival jitter |
| 931 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer + pos, |
| 932 | jitterTransmissionTimeOffset); |
| 933 | pos += 4; |
| 934 | return 0; |
| 935 | } |
| 936 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 937 | int32_t |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 938 | RTCPSender::BuildPLI(uint8_t* rtcpbuffer, int& pos) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 939 | { |
| 940 | // sanity |
| 941 | if(pos + 12 >= IP_PACKET_SIZE) |
| 942 | { |
| 943 | return -2; |
| 944 | } |
| 945 | // add picture loss indicator |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 946 | uint8_t FMT = 1; |
| 947 | rtcpbuffer[pos++]=(uint8_t)0x80 + FMT; |
| 948 | rtcpbuffer[pos++]=(uint8_t)206; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 949 | |
| 950 | //Used fixed length of 2 |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 951 | rtcpbuffer[pos++]=(uint8_t)0; |
| 952 | rtcpbuffer[pos++]=(uint8_t)(2); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 953 | |
| 954 | // Add our own SSRC |
| 955 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 956 | pos += 4; |
| 957 | |
| 958 | // Add the remote SSRC |
| 959 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _remoteSSRC); |
| 960 | pos += 4; |
| 961 | return 0; |
| 962 | } |
| 963 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 964 | int32_t RTCPSender::BuildFIR(uint8_t* rtcpbuffer, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 965 | int& pos, |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 966 | bool repeat) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 967 | // sanity |
| 968 | if(pos + 20 >= IP_PACKET_SIZE) { |
| 969 | return -2; |
| 970 | } |
| 971 | if (!repeat) { |
| 972 | _sequenceNumberFIR++; // do not increase if repetition |
| 973 | } |
| 974 | |
| 975 | // add full intra request indicator |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 976 | uint8_t FMT = 4; |
| 977 | rtcpbuffer[pos++] = (uint8_t)0x80 + FMT; |
| 978 | rtcpbuffer[pos++] = (uint8_t)206; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 979 | |
| 980 | //Length of 4 |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 981 | rtcpbuffer[pos++] = (uint8_t)0; |
| 982 | rtcpbuffer[pos++] = (uint8_t)(4); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 983 | |
| 984 | // Add our own SSRC |
| 985 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer + pos, _SSRC); |
| 986 | pos += 4; |
| 987 | |
| 988 | // RFC 5104 4.3.1.2. Semantics |
| 989 | // SSRC of media source |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 990 | rtcpbuffer[pos++] = (uint8_t)0; |
| 991 | rtcpbuffer[pos++] = (uint8_t)0; |
| 992 | rtcpbuffer[pos++] = (uint8_t)0; |
| 993 | rtcpbuffer[pos++] = (uint8_t)0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 994 | |
| 995 | // Additional Feedback Control Information (FCI) |
| 996 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer + pos, _remoteSSRC); |
| 997 | pos += 4; |
| 998 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 999 | rtcpbuffer[pos++] = (uint8_t)(_sequenceNumberFIR); |
| 1000 | rtcpbuffer[pos++] = (uint8_t)0; |
| 1001 | rtcpbuffer[pos++] = (uint8_t)0; |
| 1002 | rtcpbuffer[pos++] = (uint8_t)0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1003 | return 0; |
| 1004 | } |
| 1005 | |
| 1006 | /* |
| 1007 | 0 1 2 3 |
| 1008 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| 1009 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1010 | | First | Number | PictureID | |
| 1011 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1012 | */ |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1013 | int32_t |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1014 | RTCPSender::BuildSLI(uint8_t* rtcpbuffer, int& pos, const uint8_t pictureID) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1015 | { |
| 1016 | // sanity |
| 1017 | if(pos + 16 >= IP_PACKET_SIZE) |
| 1018 | { |
| 1019 | return -2; |
| 1020 | } |
| 1021 | // add slice loss indicator |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1022 | uint8_t FMT = 2; |
| 1023 | rtcpbuffer[pos++]=(uint8_t)0x80 + FMT; |
| 1024 | rtcpbuffer[pos++]=(uint8_t)206; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1025 | |
| 1026 | //Used fixed length of 3 |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1027 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1028 | rtcpbuffer[pos++]=(uint8_t)(3); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1029 | |
| 1030 | // Add our own SSRC |
| 1031 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1032 | pos += 4; |
| 1033 | |
| 1034 | // Add the remote SSRC |
| 1035 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _remoteSSRC); |
| 1036 | pos += 4; |
| 1037 | |
| 1038 | // Add first, number & picture ID 6 bits |
| 1039 | // first = 0, 13 - bits |
| 1040 | // number = 0x1fff, 13 - bits only ones for now |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1041 | uint32_t sliField = (0x1fff << 6)+ (0x3f & pictureID); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1042 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, sliField); |
| 1043 | pos += 4; |
| 1044 | return 0; |
| 1045 | } |
| 1046 | |
| 1047 | /* |
| 1048 | 0 1 2 3 |
| 1049 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| 1050 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1051 | | PB |0| Payload Type| Native RPSI bit string | |
| 1052 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1053 | | defined per codec ... | Padding (0) | |
| 1054 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1055 | */ |
| 1056 | /* |
| 1057 | * Note: not generic made for VP8 |
| 1058 | */ |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1059 | int32_t |
| 1060 | RTCPSender::BuildRPSI(uint8_t* rtcpbuffer, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1061 | int& pos, |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1062 | const uint64_t pictureID, |
| 1063 | const uint8_t payloadType) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1064 | { |
| 1065 | // sanity |
| 1066 | if(pos + 24 >= IP_PACKET_SIZE) |
| 1067 | { |
| 1068 | return -2; |
| 1069 | } |
| 1070 | // add Reference Picture Selection Indication |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1071 | uint8_t FMT = 3; |
| 1072 | rtcpbuffer[pos++]=(uint8_t)0x80 + FMT; |
| 1073 | rtcpbuffer[pos++]=(uint8_t)206; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1074 | |
| 1075 | // calc length |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1076 | uint32_t bitsRequired = 7; |
| 1077 | uint8_t bytesRequired = 1; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1078 | while((pictureID>>bitsRequired) > 0) |
| 1079 | { |
| 1080 | bitsRequired += 7; |
| 1081 | bytesRequired++; |
| 1082 | } |
| 1083 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1084 | uint8_t size = 3; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1085 | if(bytesRequired > 6) |
| 1086 | { |
| 1087 | size = 5; |
| 1088 | } else if(bytesRequired > 2) |
| 1089 | { |
| 1090 | size = 4; |
| 1091 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1092 | rtcpbuffer[pos++]=(uint8_t)0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1093 | rtcpbuffer[pos++]=size; |
| 1094 | |
| 1095 | // Add our own SSRC |
| 1096 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1097 | pos += 4; |
| 1098 | |
| 1099 | // Add the remote SSRC |
| 1100 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _remoteSSRC); |
| 1101 | pos += 4; |
| 1102 | |
| 1103 | // calc padding length |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1104 | uint8_t paddingBytes = 4-((2+bytesRequired)%4); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1105 | if(paddingBytes == 4) |
| 1106 | { |
| 1107 | paddingBytes = 0; |
| 1108 | } |
| 1109 | // add padding length in bits |
| 1110 | rtcpbuffer[pos] = paddingBytes*8; // padding can be 0, 8, 16 or 24 |
| 1111 | pos++; |
| 1112 | |
| 1113 | // add payload type |
| 1114 | rtcpbuffer[pos] = payloadType; |
| 1115 | pos++; |
| 1116 | |
| 1117 | // add picture ID |
| 1118 | for(int i = bytesRequired-1; i > 0; i--) |
| 1119 | { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1120 | rtcpbuffer[pos] = 0x80 | uint8_t(pictureID >> (i*7)); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1121 | pos++; |
| 1122 | } |
| 1123 | // add last byte of picture ID |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1124 | rtcpbuffer[pos] = uint8_t(pictureID & 0x7f); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1125 | pos++; |
| 1126 | |
| 1127 | // add padding |
| 1128 | for(int j = 0; j <paddingBytes; j++) |
| 1129 | { |
| 1130 | rtcpbuffer[pos] = 0; |
| 1131 | pos++; |
| 1132 | } |
| 1133 | return 0; |
| 1134 | } |
| 1135 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1136 | int32_t |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1137 | RTCPSender::BuildREMB(uint8_t* rtcpbuffer, int& pos) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1138 | { |
| 1139 | // sanity |
| 1140 | if(pos + 20 + 4 * _lengthRembSSRC >= IP_PACKET_SIZE) |
| 1141 | { |
| 1142 | return -2; |
| 1143 | } |
| 1144 | // add application layer feedback |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1145 | uint8_t FMT = 15; |
| 1146 | rtcpbuffer[pos++]=(uint8_t)0x80 + FMT; |
| 1147 | rtcpbuffer[pos++]=(uint8_t)206; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1148 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1149 | rtcpbuffer[pos++]=(uint8_t)0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1150 | rtcpbuffer[pos++]=_lengthRembSSRC + 4; |
| 1151 | |
| 1152 | // Add our own SSRC |
| 1153 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1154 | pos += 4; |
| 1155 | |
| 1156 | // Remote SSRC must be 0 |
| 1157 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, 0); |
| 1158 | pos += 4; |
| 1159 | |
| 1160 | rtcpbuffer[pos++]='R'; |
| 1161 | rtcpbuffer[pos++]='E'; |
| 1162 | rtcpbuffer[pos++]='M'; |
| 1163 | rtcpbuffer[pos++]='B'; |
| 1164 | |
| 1165 | rtcpbuffer[pos++] = _lengthRembSSRC; |
| 1166 | // 6 bit Exp |
| 1167 | // 18 bit mantissa |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1168 | uint8_t brExp = 0; |
| 1169 | for(uint32_t i=0; i<64; i++) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1170 | { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1171 | if(_rembBitrate <= ((uint32_t)262143 << i)) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1172 | { |
| 1173 | brExp = i; |
| 1174 | break; |
| 1175 | } |
| 1176 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1177 | const uint32_t brMantissa = (_rembBitrate >> brExp); |
| 1178 | rtcpbuffer[pos++]=(uint8_t)((brExp << 2) + ((brMantissa >> 16) & 0x03)); |
| 1179 | rtcpbuffer[pos++]=(uint8_t)(brMantissa >> 8); |
| 1180 | rtcpbuffer[pos++]=(uint8_t)(brMantissa); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1181 | |
| 1182 | for (int i = 0; i < _lengthRembSSRC; i++) |
| 1183 | { |
| 1184 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _rembSSRC[i]); |
| 1185 | pos += 4; |
| 1186 | } |
| 1187 | return 0; |
| 1188 | } |
| 1189 | |
| 1190 | void |
| 1191 | RTCPSender::SetTargetBitrate(unsigned int target_bitrate) |
| 1192 | { |
| 1193 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 1194 | _tmmbr_Send = target_bitrate / 1000; |
| 1195 | } |
| 1196 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1197 | int32_t RTCPSender::BuildTMMBR(ModuleRtpRtcpImpl* rtp_rtcp_module, |
| 1198 | uint8_t* rtcpbuffer, |
| 1199 | int& pos) { |
| 1200 | if (rtp_rtcp_module == NULL) |
| 1201 | return -1; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1202 | // Before sending the TMMBR check the received TMMBN, only an owner is allowed to raise the bitrate |
| 1203 | // If the sender is an owner of the TMMBN -> send TMMBR |
| 1204 | // If not an owner but the TMMBR would enter the TMMBN -> send TMMBR |
| 1205 | |
| 1206 | // get current bounding set from RTCP receiver |
| 1207 | bool tmmbrOwner = false; |
| 1208 | // store in candidateSet, allocates one extra slot |
| 1209 | TMMBRSet* candidateSet = _tmmbrHelp.CandidateSet(); |
| 1210 | |
| 1211 | // holding _criticalSectionRTCPSender while calling RTCPreceiver which |
| 1212 | // will accuire _criticalSectionRTCPReceiver is a potental deadlock but |
| 1213 | // since RTCPreceiver is not doing the reverse we should be fine |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1214 | int32_t lengthOfBoundingSet = |
| 1215 | rtp_rtcp_module->BoundingSet(tmmbrOwner, candidateSet); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1216 | |
| 1217 | if(lengthOfBoundingSet > 0) |
| 1218 | { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1219 | for (int32_t i = 0; i < lengthOfBoundingSet; i++) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1220 | { |
| 1221 | if( candidateSet->Tmmbr(i) == _tmmbr_Send && |
| 1222 | candidateSet->PacketOH(i) == _packetOH_Send) |
| 1223 | { |
| 1224 | // do not send the same tuple |
| 1225 | return 0; |
| 1226 | } |
| 1227 | } |
| 1228 | if(!tmmbrOwner) |
| 1229 | { |
| 1230 | // use received bounding set as candidate set |
| 1231 | // add current tuple |
| 1232 | candidateSet->SetEntry(lengthOfBoundingSet, |
| 1233 | _tmmbr_Send, |
| 1234 | _packetOH_Send, |
| 1235 | _SSRC); |
| 1236 | int numCandidates = lengthOfBoundingSet+ 1; |
| 1237 | |
| 1238 | // find bounding set |
| 1239 | TMMBRSet* boundingSet = NULL; |
| 1240 | int numBoundingSet = _tmmbrHelp.FindTMMBRBoundingSet(boundingSet); |
| 1241 | if(numBoundingSet > 0 || numBoundingSet <= numCandidates) |
| 1242 | { |
| 1243 | tmmbrOwner = _tmmbrHelp.IsOwner(_SSRC, numBoundingSet); |
| 1244 | } |
| 1245 | if(!tmmbrOwner) |
| 1246 | { |
| 1247 | // did not enter bounding set, no meaning to send this request |
| 1248 | return 0; |
| 1249 | } |
| 1250 | } |
| 1251 | } |
| 1252 | |
| 1253 | if(_tmmbr_Send) |
| 1254 | { |
| 1255 | // sanity |
| 1256 | if(pos + 20 >= IP_PACKET_SIZE) |
| 1257 | { |
| 1258 | return -2; |
| 1259 | } |
| 1260 | // add TMMBR indicator |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1261 | uint8_t FMT = 3; |
| 1262 | rtcpbuffer[pos++]=(uint8_t)0x80 + FMT; |
| 1263 | rtcpbuffer[pos++]=(uint8_t)205; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1264 | |
| 1265 | //Length of 4 |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1266 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1267 | rtcpbuffer[pos++]=(uint8_t)(4); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1268 | |
| 1269 | // Add our own SSRC |
| 1270 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1271 | pos += 4; |
| 1272 | |
| 1273 | // RFC 5104 4.2.1.2. Semantics |
| 1274 | |
| 1275 | // SSRC of media source |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1276 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1277 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1278 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1279 | rtcpbuffer[pos++]=(uint8_t)0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1280 | |
| 1281 | // Additional Feedback Control Information (FCI) |
| 1282 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _remoteSSRC); |
| 1283 | pos += 4; |
| 1284 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1285 | uint32_t bitRate = _tmmbr_Send*1000; |
| 1286 | uint32_t mmbrExp = 0; |
| 1287 | for(uint32_t i=0;i<64;i++) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1288 | { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1289 | if(bitRate <= ((uint32_t)131071 << i)) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1290 | { |
| 1291 | mmbrExp = i; |
| 1292 | break; |
| 1293 | } |
| 1294 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1295 | uint32_t mmbrMantissa = (bitRate >> mmbrExp); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1296 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1297 | rtcpbuffer[pos++]=(uint8_t)((mmbrExp << 2) + ((mmbrMantissa >> 15) & 0x03)); |
| 1298 | rtcpbuffer[pos++]=(uint8_t)(mmbrMantissa >> 7); |
| 1299 | rtcpbuffer[pos++]=(uint8_t)((mmbrMantissa << 1) + ((_packetOH_Send >> 8)& 0x01)); |
| 1300 | rtcpbuffer[pos++]=(uint8_t)(_packetOH_Send); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1301 | } |
| 1302 | return 0; |
| 1303 | } |
| 1304 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1305 | int32_t |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1306 | RTCPSender::BuildTMMBN(uint8_t* rtcpbuffer, int& pos) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1307 | { |
| 1308 | TMMBRSet* boundingSet = _tmmbrHelp.BoundingSetToSend(); |
| 1309 | if(boundingSet == NULL) |
| 1310 | { |
| 1311 | return -1; |
| 1312 | } |
| 1313 | // sanity |
| 1314 | if(pos + 12 + boundingSet->lengthOfSet()*8 >= IP_PACKET_SIZE) |
| 1315 | { |
| 1316 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, "%s invalid argument", __FUNCTION__); |
| 1317 | return -2; |
| 1318 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1319 | uint8_t FMT = 4; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1320 | // add TMMBN indicator |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1321 | rtcpbuffer[pos++]=(uint8_t)0x80 + FMT; |
| 1322 | rtcpbuffer[pos++]=(uint8_t)205; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1323 | |
| 1324 | //Add length later |
| 1325 | int posLength = pos; |
| 1326 | pos++; |
| 1327 | pos++; |
| 1328 | |
| 1329 | // Add our own SSRC |
| 1330 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1331 | pos += 4; |
| 1332 | |
| 1333 | // RFC 5104 4.2.2.2. Semantics |
| 1334 | |
| 1335 | // SSRC of media source |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1336 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1337 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1338 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1339 | rtcpbuffer[pos++]=(uint8_t)0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1340 | |
| 1341 | // Additional Feedback Control Information (FCI) |
| 1342 | int numBoundingSet = 0; |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1343 | for(uint32_t n=0; n< boundingSet->lengthOfSet(); n++) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1344 | { |
| 1345 | if (boundingSet->Tmmbr(n) > 0) |
| 1346 | { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1347 | uint32_t tmmbrSSRC = boundingSet->Ssrc(n); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1348 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, tmmbrSSRC); |
| 1349 | pos += 4; |
| 1350 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1351 | uint32_t bitRate = boundingSet->Tmmbr(n) * 1000; |
| 1352 | uint32_t mmbrExp = 0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1353 | for(int i=0; i<64; i++) |
| 1354 | { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1355 | if(bitRate <= ((uint32_t)131071 << i)) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1356 | { |
| 1357 | mmbrExp = i; |
| 1358 | break; |
| 1359 | } |
| 1360 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1361 | uint32_t mmbrMantissa = (bitRate >> mmbrExp); |
| 1362 | uint32_t measuredOH = boundingSet->PacketOH(n); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1363 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1364 | rtcpbuffer[pos++]=(uint8_t)((mmbrExp << 2) + ((mmbrMantissa >> 15) & 0x03)); |
| 1365 | rtcpbuffer[pos++]=(uint8_t)(mmbrMantissa >> 7); |
| 1366 | rtcpbuffer[pos++]=(uint8_t)((mmbrMantissa << 1) + ((measuredOH >> 8)& 0x01)); |
| 1367 | rtcpbuffer[pos++]=(uint8_t)(measuredOH); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1368 | numBoundingSet++; |
| 1369 | } |
| 1370 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1371 | uint16_t length= (uint16_t)(2+2*numBoundingSet); |
| 1372 | rtcpbuffer[posLength++]=(uint8_t)(length>>8); |
| 1373 | rtcpbuffer[posLength]=(uint8_t)(length); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1374 | return 0; |
| 1375 | } |
| 1376 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1377 | int32_t |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1378 | RTCPSender::BuildAPP(uint8_t* rtcpbuffer, int& pos) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1379 | { |
| 1380 | // sanity |
| 1381 | if(_appData == NULL) |
| 1382 | { |
| 1383 | WEBRTC_TRACE(kTraceWarning, kTraceRtpRtcp, _id, "%s invalid state", __FUNCTION__); |
| 1384 | return -1; |
| 1385 | } |
| 1386 | if(pos + 12 + _appLength >= IP_PACKET_SIZE) |
| 1387 | { |
| 1388 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, "%s invalid argument", __FUNCTION__); |
| 1389 | return -2; |
| 1390 | } |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1391 | rtcpbuffer[pos++]=(uint8_t)0x80 + _appSubType; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1392 | |
| 1393 | // Add APP ID |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1394 | rtcpbuffer[pos++]=(uint8_t)204; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1395 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1396 | uint16_t length = (_appLength>>2) + 2; // include SSRC and name |
| 1397 | rtcpbuffer[pos++]=(uint8_t)(length>>8); |
| 1398 | rtcpbuffer[pos++]=(uint8_t)(length); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1399 | |
| 1400 | // Add our own SSRC |
| 1401 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1402 | pos += 4; |
| 1403 | |
| 1404 | // Add our application name |
| 1405 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _appName); |
| 1406 | pos += 4; |
| 1407 | |
| 1408 | // Add the data |
| 1409 | memcpy(rtcpbuffer +pos, _appData,_appLength); |
| 1410 | pos += _appLength; |
| 1411 | return 0; |
| 1412 | } |
| 1413 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1414 | int32_t |
| 1415 | RTCPSender::BuildNACK(uint8_t* rtcpbuffer, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1416 | int& pos, |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1417 | const int32_t nackSize, |
| 1418 | const uint16_t* nackList, |
edjee@google.com | dded206 | 2013-04-04 19:43:34 +0000 | [diff] [blame] | 1419 | std::string* nackString) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1420 | { |
| 1421 | // sanity |
| 1422 | if(pos + 16 >= IP_PACKET_SIZE) |
| 1423 | { |
| 1424 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, "%s invalid argument", __FUNCTION__); |
| 1425 | return -2; |
| 1426 | } |
| 1427 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1428 | // int size, uint16_t* nackList |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1429 | // add nack list |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1430 | uint8_t FMT = 1; |
| 1431 | rtcpbuffer[pos++]=(uint8_t)0x80 + FMT; |
| 1432 | rtcpbuffer[pos++]=(uint8_t)205; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1433 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1434 | rtcpbuffer[pos++]=(uint8_t) 0; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1435 | int nackSizePos = pos; |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1436 | rtcpbuffer[pos++]=(uint8_t)(3); //setting it to one kNACK signal as default |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1437 | |
| 1438 | // Add our own SSRC |
| 1439 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1440 | pos += 4; |
| 1441 | |
| 1442 | // Add the remote SSRC |
| 1443 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _remoteSSRC); |
| 1444 | pos += 4; |
| 1445 | |
edjee@google.com | dded206 | 2013-04-04 19:43:34 +0000 | [diff] [blame] | 1446 | NACKStringBuilder stringBuilder; |
andresp@webrtc.org | bda02e4 | 2013-04-11 11:30:39 +0000 | [diff] [blame] | 1447 | // Build NACK bitmasks and write them to the RTCP message. |
| 1448 | // The nack list should be sorted and not contain duplicates if one |
| 1449 | // wants to build the smallest rtcp nack packet. |
| 1450 | int numOfNackFields = 0; |
| 1451 | int maxNackFields = std::min<int>(kRtcpMaxNackFields, |
| 1452 | (IP_PACKET_SIZE - pos) / 4); |
| 1453 | int i = 0; |
| 1454 | while (i < nackSize && numOfNackFields < maxNackFields) { |
| 1455 | stringBuilder.PushNACK(nackList[i]); |
| 1456 | uint16_t nack = nackList[i++]; |
| 1457 | uint16_t bitmask = 0; |
| 1458 | while (i < nackSize) { |
| 1459 | int shift = static_cast<uint16_t>(nackList[i] - nack) - 1; |
| 1460 | if (shift >= 0 && shift <= 15) { |
| 1461 | stringBuilder.PushNACK(nackList[i]); |
| 1462 | bitmask |= (1 << shift); |
| 1463 | ++i; |
| 1464 | } else { |
| 1465 | break; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1466 | } |
andresp@webrtc.org | bda02e4 | 2013-04-11 11:30:39 +0000 | [diff] [blame] | 1467 | } |
| 1468 | // Write the sequence number and the bitmask to the packet. |
| 1469 | assert(pos + 4 < IP_PACKET_SIZE); |
| 1470 | ModuleRTPUtility::AssignUWord16ToBuffer(rtcpbuffer + pos, nack); |
| 1471 | pos += 2; |
| 1472 | ModuleRTPUtility::AssignUWord16ToBuffer(rtcpbuffer + pos, bitmask); |
| 1473 | pos += 2; |
| 1474 | numOfNackFields++; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1475 | } |
andresp@webrtc.org | bda02e4 | 2013-04-11 11:30:39 +0000 | [diff] [blame] | 1476 | if (i != nackSize) { |
| 1477 | WEBRTC_TRACE(kTraceWarning, kTraceRtpRtcp, _id, |
| 1478 | "Nack list to large for one packet."); |
| 1479 | } |
| 1480 | rtcpbuffer[nackSizePos] = static_cast<uint8_t>(2 + numOfNackFields); |
edjee@google.com | dded206 | 2013-04-04 19:43:34 +0000 | [diff] [blame] | 1481 | *nackString = stringBuilder.GetResult(); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1482 | return 0; |
| 1483 | } |
| 1484 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1485 | int32_t |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1486 | RTCPSender::BuildBYE(uint8_t* rtcpbuffer, int& pos) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1487 | { |
| 1488 | // sanity |
| 1489 | if(pos + 8 >= IP_PACKET_SIZE) |
| 1490 | { |
| 1491 | return -2; |
| 1492 | } |
| 1493 | if(_includeCSRCs) |
| 1494 | { |
| 1495 | // Add a bye packet |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1496 | rtcpbuffer[pos++]=(uint8_t)0x80 + 1 + _CSRCs; // number of SSRC+CSRCs |
| 1497 | rtcpbuffer[pos++]=(uint8_t)203; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1498 | |
| 1499 | // length |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1500 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1501 | rtcpbuffer[pos++]=(uint8_t)(1 + _CSRCs); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1502 | |
| 1503 | // Add our own SSRC |
| 1504 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1505 | pos += 4; |
| 1506 | |
| 1507 | // add CSRCs |
| 1508 | for(int i = 0; i < _CSRCs; i++) |
| 1509 | { |
| 1510 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _CSRC[i]); |
| 1511 | pos += 4; |
| 1512 | } |
| 1513 | } else |
| 1514 | { |
| 1515 | // Add a bye packet |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1516 | rtcpbuffer[pos++]=(uint8_t)0x80 + 1; // number of SSRC+CSRCs |
| 1517 | rtcpbuffer[pos++]=(uint8_t)203; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1518 | |
| 1519 | // length |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1520 | rtcpbuffer[pos++]=(uint8_t)0; |
| 1521 | rtcpbuffer[pos++]=(uint8_t)1; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1522 | |
| 1523 | // Add our own SSRC |
| 1524 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1525 | pos += 4; |
| 1526 | } |
| 1527 | return 0; |
| 1528 | } |
| 1529 | |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 1530 | int32_t RTCPSender::BuildReceiverReferenceTime(uint8_t* buffer, |
| 1531 | int& pos, |
| 1532 | uint32_t ntp_sec, |
| 1533 | uint32_t ntp_frac) { |
| 1534 | const int kRrTimeBlockLength = 20; |
| 1535 | if (pos + kRrTimeBlockLength >= IP_PACKET_SIZE) { |
| 1536 | return -2; |
| 1537 | } |
| 1538 | |
| 1539 | if (last_xr_rr_.size() >= RTCP_NUMBER_OF_SR) { |
| 1540 | last_xr_rr_.erase(last_xr_rr_.begin()); |
| 1541 | } |
| 1542 | last_xr_rr_.insert(std::pair<uint32_t, int64_t>( |
| 1543 | RTCPUtility::MidNtp(ntp_sec, ntp_frac), |
| 1544 | Clock::NtpToMs(ntp_sec, ntp_frac))); |
| 1545 | |
| 1546 | // Add XR header. |
| 1547 | buffer[pos++] = 0x80; |
| 1548 | buffer[pos++] = 207; |
| 1549 | buffer[pos++] = 0; // XR packet length. |
| 1550 | buffer[pos++] = 4; // XR packet length. |
| 1551 | |
| 1552 | // Add our own SSRC. |
| 1553 | ModuleRTPUtility::AssignUWord32ToBuffer(buffer + pos, _SSRC); |
| 1554 | pos += 4; |
| 1555 | |
| 1556 | // 0 1 2 3 |
| 1557 | // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| 1558 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1559 | // | BT=4 | reserved | block length = 2 | |
| 1560 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1561 | // | NTP timestamp, most significant word | |
| 1562 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1563 | // | NTP timestamp, least significant word | |
| 1564 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1565 | |
| 1566 | // Add Receiver Reference Time Report block. |
| 1567 | buffer[pos++] = 4; // BT. |
| 1568 | buffer[pos++] = 0; // Reserved. |
| 1569 | buffer[pos++] = 0; // Block length. |
| 1570 | buffer[pos++] = 2; // Block length. |
| 1571 | |
| 1572 | // NTP timestamp. |
| 1573 | ModuleRTPUtility::AssignUWord32ToBuffer(buffer + pos, ntp_sec); |
| 1574 | pos += 4; |
| 1575 | ModuleRTPUtility::AssignUWord32ToBuffer(buffer + pos, ntp_frac); |
| 1576 | pos += 4; |
| 1577 | |
| 1578 | return 0; |
| 1579 | } |
| 1580 | |
| 1581 | int32_t RTCPSender::BuildDlrr(uint8_t* buffer, |
| 1582 | int& pos, |
| 1583 | const RtcpReceiveTimeInfo& info) { |
| 1584 | const int kDlrrBlockLength = 24; |
| 1585 | if (pos + kDlrrBlockLength >= IP_PACKET_SIZE) { |
| 1586 | return -2; |
| 1587 | } |
| 1588 | |
| 1589 | // Add XR header. |
| 1590 | buffer[pos++] = 0x80; |
| 1591 | buffer[pos++] = 207; |
| 1592 | buffer[pos++] = 0; // XR packet length. |
| 1593 | buffer[pos++] = 5; // XR packet length. |
| 1594 | |
| 1595 | // Add our own SSRC. |
| 1596 | ModuleRTPUtility::AssignUWord32ToBuffer(buffer + pos, _SSRC); |
| 1597 | pos += 4; |
| 1598 | |
| 1599 | // 0 1 2 3 |
| 1600 | // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| 1601 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1602 | // | BT=5 | reserved | block length | |
| 1603 | // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ |
| 1604 | // | SSRC_1 (SSRC of first receiver) | sub- |
| 1605 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ block |
| 1606 | // | last RR (LRR) | 1 |
| 1607 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 1608 | // | delay since last RR (DLRR) | |
| 1609 | // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ |
| 1610 | // | SSRC_2 (SSRC of second receiver) | sub- |
| 1611 | // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ block |
| 1612 | // : ... : 2 |
| 1613 | |
| 1614 | // Add DLRR sub block. |
| 1615 | buffer[pos++] = 5; // BT. |
| 1616 | buffer[pos++] = 0; // Reserved. |
| 1617 | buffer[pos++] = 0; // Block length. |
| 1618 | buffer[pos++] = 3; // Block length. |
| 1619 | |
| 1620 | // NTP timestamp. |
| 1621 | ModuleRTPUtility::AssignUWord32ToBuffer(buffer + pos, info.sourceSSRC); |
| 1622 | pos += 4; |
| 1623 | ModuleRTPUtility::AssignUWord32ToBuffer(buffer + pos, info.lastRR); |
| 1624 | pos += 4; |
| 1625 | ModuleRTPUtility::AssignUWord32ToBuffer(buffer + pos, info.delaySinceLastRR); |
| 1626 | pos += 4; |
| 1627 | |
| 1628 | return 0; |
| 1629 | } |
| 1630 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1631 | int32_t |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1632 | RTCPSender::BuildVoIPMetric(uint8_t* rtcpbuffer, int& pos) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1633 | { |
| 1634 | // sanity |
| 1635 | if(pos + 44 >= IP_PACKET_SIZE) |
| 1636 | { |
| 1637 | return -2; |
| 1638 | } |
| 1639 | |
| 1640 | // Add XR header |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1641 | rtcpbuffer[pos++]=(uint8_t)0x80; |
| 1642 | rtcpbuffer[pos++]=(uint8_t)207; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1643 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1644 | uint32_t XRLengthPos = pos; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1645 | |
| 1646 | // handle length later on |
| 1647 | pos++; |
| 1648 | pos++; |
| 1649 | |
| 1650 | // Add our own SSRC |
| 1651 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _SSRC); |
| 1652 | pos += 4; |
| 1653 | |
| 1654 | // Add a VoIP metrics block |
| 1655 | rtcpbuffer[pos++]=7; |
| 1656 | rtcpbuffer[pos++]=0; |
| 1657 | rtcpbuffer[pos++]=0; |
| 1658 | rtcpbuffer[pos++]=8; |
| 1659 | |
| 1660 | // Add the remote SSRC |
| 1661 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+pos, _remoteSSRC); |
| 1662 | pos += 4; |
| 1663 | |
| 1664 | rtcpbuffer[pos++] = _xrVoIPMetric.lossRate; |
| 1665 | rtcpbuffer[pos++] = _xrVoIPMetric.discardRate; |
| 1666 | rtcpbuffer[pos++] = _xrVoIPMetric.burstDensity; |
| 1667 | rtcpbuffer[pos++] = _xrVoIPMetric.gapDensity; |
| 1668 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1669 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.burstDuration >> 8); |
| 1670 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.burstDuration); |
| 1671 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.gapDuration >> 8); |
| 1672 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.gapDuration); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1673 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1674 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.roundTripDelay >> 8); |
| 1675 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.roundTripDelay); |
| 1676 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.endSystemDelay >> 8); |
| 1677 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.endSystemDelay); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1678 | |
| 1679 | rtcpbuffer[pos++] = _xrVoIPMetric.signalLevel; |
| 1680 | rtcpbuffer[pos++] = _xrVoIPMetric.noiseLevel; |
| 1681 | rtcpbuffer[pos++] = _xrVoIPMetric.RERL; |
| 1682 | rtcpbuffer[pos++] = _xrVoIPMetric.Gmin; |
| 1683 | |
| 1684 | rtcpbuffer[pos++] = _xrVoIPMetric.Rfactor; |
| 1685 | rtcpbuffer[pos++] = _xrVoIPMetric.extRfactor; |
| 1686 | rtcpbuffer[pos++] = _xrVoIPMetric.MOSLQ; |
| 1687 | rtcpbuffer[pos++] = _xrVoIPMetric.MOSCQ; |
| 1688 | |
| 1689 | rtcpbuffer[pos++] = _xrVoIPMetric.RXconfig; |
| 1690 | rtcpbuffer[pos++] = 0; // reserved |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1691 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.JBnominal >> 8); |
| 1692 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.JBnominal); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1693 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1694 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.JBmax >> 8); |
| 1695 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.JBmax); |
| 1696 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.JBabsMax >> 8); |
| 1697 | rtcpbuffer[pos++] = (uint8_t)(_xrVoIPMetric.JBabsMax); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1698 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 1699 | rtcpbuffer[XRLengthPos]=(uint8_t)(0); |
| 1700 | rtcpbuffer[XRLengthPos+1]=(uint8_t)(10); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1701 | return 0; |
| 1702 | } |
| 1703 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1704 | int32_t RTCPSender::SendRTCP(const FeedbackState& feedback_state, |
| 1705 | uint32_t packetTypeFlags, |
| 1706 | int32_t nackSize, |
| 1707 | const uint16_t* nackList, |
| 1708 | bool repeat, |
| 1709 | uint64_t pictureID) { |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1710 | { |
| 1711 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 1712 | if(_method == kRtcpOff) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1713 | { |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1714 | WEBRTC_TRACE(kTraceWarning, kTraceRtpRtcp, _id, |
| 1715 | "%s invalid state", __FUNCTION__); |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 1716 | return -1; |
| 1717 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1718 | } |
| 1719 | uint8_t rtcp_buffer[IP_PACKET_SIZE]; |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1720 | int rtcp_length = PrepareRTCP(feedback_state, |
| 1721 | packetTypeFlags, |
| 1722 | nackSize, |
| 1723 | nackList, |
| 1724 | repeat, |
| 1725 | pictureID, |
| 1726 | rtcp_buffer, |
| 1727 | IP_PACKET_SIZE); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1728 | if (rtcp_length < 0) { |
| 1729 | return -1; |
| 1730 | } |
| 1731 | // Sanity don't send empty packets. |
| 1732 | if (rtcp_length == 0) |
| 1733 | { |
| 1734 | return -1; |
| 1735 | } |
| 1736 | return SendToNetwork(rtcp_buffer, static_cast<uint16_t>(rtcp_length)); |
| 1737 | } |
| 1738 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1739 | int RTCPSender::PrepareRTCP(const FeedbackState& feedback_state, |
| 1740 | uint32_t packetTypeFlags, |
| 1741 | int32_t nackSize, |
| 1742 | const uint16_t* nackList, |
| 1743 | bool repeat, |
| 1744 | uint64_t pictureID, |
| 1745 | uint8_t* rtcp_buffer, |
| 1746 | int buffer_size) { |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1747 | uint32_t rtcpPacketTypeFlags = packetTypeFlags; |
| 1748 | // Collect the received information. |
| 1749 | uint32_t NTPsec = 0; |
| 1750 | uint32_t NTPfrac = 0; |
| 1751 | uint32_t jitterTransmissionOffset = 0; |
| 1752 | int position = 0; |
| 1753 | |
| 1754 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 1755 | |
| 1756 | if(_TMMBR ) // Attach TMMBR to send and receive reports. |
| 1757 | { |
| 1758 | rtcpPacketTypeFlags |= kRtcpTmmbr; |
| 1759 | } |
| 1760 | if(_appSend) |
| 1761 | { |
| 1762 | rtcpPacketTypeFlags |= kRtcpApp; |
| 1763 | _appSend = false; |
| 1764 | } |
| 1765 | if(_REMB && _sendREMB) |
| 1766 | { |
| 1767 | // Always attach REMB to SR if that is configured. Note that REMB is |
| 1768 | // only sent on one of the RTP modules in the REMB group. |
| 1769 | rtcpPacketTypeFlags |= kRtcpRemb; |
| 1770 | } |
| 1771 | if(_xrSendVoIPMetric) |
| 1772 | { |
| 1773 | rtcpPacketTypeFlags |= kRtcpXrVoipMetric; |
| 1774 | _xrSendVoIPMetric = false; |
| 1775 | } |
| 1776 | if(_sendTMMBN) // Set when having received a TMMBR. |
| 1777 | { |
| 1778 | rtcpPacketTypeFlags |= kRtcpTmmbn; |
| 1779 | _sendTMMBN = false; |
| 1780 | } |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 1781 | if (xrSendReceiverReferenceTimeEnabled_ && |
| 1782 | (rtcpPacketTypeFlags & kRtcpReport)) |
| 1783 | { |
| 1784 | if (!_sending) |
| 1785 | { |
| 1786 | rtcpPacketTypeFlags |= kRtcpXrReceiverReferenceTime; |
| 1787 | } |
| 1788 | if (feedback_state.has_last_xr_rr) |
| 1789 | { |
| 1790 | rtcpPacketTypeFlags |= kRtcpXrDlrrReportBlock; |
| 1791 | } |
| 1792 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1793 | if(_method == kRtcpCompound) |
| 1794 | { |
| 1795 | if(_sending) |
| 1796 | { |
| 1797 | rtcpPacketTypeFlags |= kRtcpSr; |
| 1798 | } else |
| 1799 | { |
| 1800 | rtcpPacketTypeFlags |= kRtcpRr; |
| 1801 | } |
| 1802 | } else if(_method == kRtcpNonCompound) |
| 1803 | { |
| 1804 | if(rtcpPacketTypeFlags & kRtcpReport) |
| 1805 | { |
| 1806 | if(_sending) |
| 1807 | { |
| 1808 | rtcpPacketTypeFlags |= kRtcpSr; |
| 1809 | } else |
| 1810 | { |
| 1811 | rtcpPacketTypeFlags |= kRtcpRr; |
| 1812 | } |
| 1813 | } |
| 1814 | } |
| 1815 | if( rtcpPacketTypeFlags & kRtcpRr || |
| 1816 | rtcpPacketTypeFlags & kRtcpSr) |
| 1817 | { |
| 1818 | // generate next time to send a RTCP report |
| 1819 | // seeded from RTP constructor |
| 1820 | int32_t random = rand() % 1000; |
| 1821 | int32_t timeToNext = RTCP_INTERVAL_AUDIO_MS; |
| 1822 | |
| 1823 | if(_audio) |
| 1824 | { |
| 1825 | timeToNext = (RTCP_INTERVAL_AUDIO_MS/2) + |
| 1826 | (RTCP_INTERVAL_AUDIO_MS*random/1000); |
| 1827 | }else |
| 1828 | { |
| 1829 | uint32_t minIntervalMs = RTCP_INTERVAL_AUDIO_MS; |
| 1830 | if(_sending) |
| 1831 | { |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1832 | // Calculate bandwidth for video; 360 / send bandwidth in kbit/s. |
| 1833 | uint32_t send_bitrate_kbit = feedback_state.send_bitrate / 1000; |
| 1834 | if (send_bitrate_kbit != 0) |
| 1835 | minIntervalMs = 360000 / send_bitrate_kbit; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1836 | } |
| 1837 | if(minIntervalMs > RTCP_INTERVAL_VIDEO_MS) |
| 1838 | { |
| 1839 | minIntervalMs = RTCP_INTERVAL_VIDEO_MS; |
| 1840 | } |
| 1841 | timeToNext = (minIntervalMs/2) + (minIntervalMs*random/1000); |
| 1842 | } |
| 1843 | _nextTimeToSendRTCP = _clock->TimeInMilliseconds() + timeToNext; |
| 1844 | } |
| 1845 | |
| 1846 | // If the data does not fit in the packet we fill it as much as possible. |
| 1847 | int32_t buildVal = 0; |
| 1848 | |
| 1849 | // We need to send our NTP even if we haven't received any reports. |
| 1850 | _clock->CurrentNtp(NTPsec, NTPfrac); |
| 1851 | if (ShouldSendReportBlocks(rtcpPacketTypeFlags)) { |
| 1852 | StatisticianMap statisticians = |
| 1853 | receive_statistics_->GetActiveStatisticians(); |
| 1854 | if (!statisticians.empty()) { |
| 1855 | StatisticianMap::const_iterator it; |
| 1856 | int i; |
| 1857 | for (it = statisticians.begin(), i = 0; it != statisticians.end(); |
| 1858 | ++it, ++i) { |
| 1859 | RTCPReportBlock report_block; |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1860 | if (PrepareReport( |
| 1861 | feedback_state, it->second, &report_block, &NTPsec, &NTPfrac)) |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1862 | AddReportBlock(it->first, &internal_report_blocks_, &report_block); |
| 1863 | } |
| 1864 | if (_IJ && !statisticians.empty()) { |
| 1865 | rtcpPacketTypeFlags |= kRtcpTransmissionTimeOffset; |
| 1866 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | if(rtcpPacketTypeFlags & kRtcpSr) |
| 1871 | { |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1872 | buildVal = BuildSR(feedback_state, rtcp_buffer, position, NTPsec, NTPfrac); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1873 | if (buildVal == -1) { |
| 1874 | return -1; |
| 1875 | } else if (buildVal == -2) { |
| 1876 | return position; |
| 1877 | } |
| 1878 | buildVal = BuildSDEC(rtcp_buffer, position); |
| 1879 | if (buildVal == -1) { |
| 1880 | return -1; |
| 1881 | } else if (buildVal == -2) { |
| 1882 | return position; |
| 1883 | } |
| 1884 | }else if(rtcpPacketTypeFlags & kRtcpRr) |
| 1885 | { |
| 1886 | buildVal = BuildRR(rtcp_buffer, position, NTPsec, NTPfrac); |
| 1887 | if (buildVal == -1) { |
| 1888 | return -1; |
| 1889 | } else if (buildVal == -2) { |
| 1890 | return position; |
| 1891 | } |
| 1892 | // only of set |
| 1893 | if(_CNAME[0] != 0) |
| 1894 | { |
| 1895 | buildVal = BuildSDEC(rtcp_buffer, position); |
| 1896 | if (buildVal == -1) { |
| 1897 | return -1; |
| 1898 | } |
| 1899 | } |
| 1900 | } |
| 1901 | if(rtcpPacketTypeFlags & kRtcpTransmissionTimeOffset) |
| 1902 | { |
| 1903 | // If present, this RTCP packet must be placed after a |
| 1904 | // receiver report. |
| 1905 | buildVal = BuildExtendedJitterReport(rtcp_buffer, |
| 1906 | position, |
| 1907 | jitterTransmissionOffset); |
| 1908 | if (buildVal == -1) { |
| 1909 | return -1; |
| 1910 | } else if (buildVal == -2) { |
| 1911 | return position; |
| 1912 | } |
| 1913 | } |
| 1914 | if(rtcpPacketTypeFlags & kRtcpPli) |
| 1915 | { |
| 1916 | buildVal = BuildPLI(rtcp_buffer, position); |
| 1917 | if (buildVal == -1) { |
| 1918 | return -1; |
| 1919 | } else if (buildVal == -2) { |
| 1920 | return position; |
| 1921 | } |
| 1922 | TRACE_EVENT_INSTANT0("webrtc_rtp", "RTCPSender::PLI"); |
| 1923 | _pliCount++; |
| 1924 | TRACE_COUNTER_ID1("webrtc_rtp", "RTCP_PLICount", _SSRC, _pliCount); |
| 1925 | } |
| 1926 | if(rtcpPacketTypeFlags & kRtcpFir) |
| 1927 | { |
| 1928 | buildVal = BuildFIR(rtcp_buffer, position, repeat); |
| 1929 | if (buildVal == -1) { |
| 1930 | return -1; |
| 1931 | } else if (buildVal == -2) { |
| 1932 | return position; |
| 1933 | } |
| 1934 | TRACE_EVENT_INSTANT0("webrtc_rtp", "RTCPSender::FIR"); |
| 1935 | _fullIntraRequestCount++; |
| 1936 | TRACE_COUNTER_ID1("webrtc_rtp", "RTCP_FIRCount", _SSRC, |
| 1937 | _fullIntraRequestCount); |
| 1938 | } |
| 1939 | if(rtcpPacketTypeFlags & kRtcpSli) |
| 1940 | { |
| 1941 | buildVal = BuildSLI(rtcp_buffer, position, (uint8_t)pictureID); |
| 1942 | if (buildVal == -1) { |
| 1943 | return -1; |
| 1944 | } else if (buildVal == -2) { |
| 1945 | return position; |
| 1946 | } |
| 1947 | } |
| 1948 | if(rtcpPacketTypeFlags & kRtcpRpsi) |
| 1949 | { |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1950 | const int8_t payloadType = feedback_state.send_payload_type; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1951 | if (payloadType == -1) { |
| 1952 | return -1; |
| 1953 | } |
| 1954 | buildVal = BuildRPSI(rtcp_buffer, position, pictureID, |
| 1955 | (uint8_t)payloadType); |
| 1956 | if (buildVal == -1) { |
| 1957 | return -1; |
| 1958 | } else if (buildVal == -2) { |
| 1959 | return position; |
| 1960 | } |
| 1961 | } |
| 1962 | if(rtcpPacketTypeFlags & kRtcpRemb) |
| 1963 | { |
| 1964 | buildVal = BuildREMB(rtcp_buffer, position); |
| 1965 | if (buildVal == -1) { |
| 1966 | return -1; |
| 1967 | } else if (buildVal == -2) { |
| 1968 | return position; |
| 1969 | } |
| 1970 | TRACE_EVENT_INSTANT0("webrtc_rtp", "RTCPSender::REMB"); |
| 1971 | } |
| 1972 | if(rtcpPacketTypeFlags & kRtcpBye) |
| 1973 | { |
| 1974 | buildVal = BuildBYE(rtcp_buffer, position); |
| 1975 | if (buildVal == -1) { |
| 1976 | return -1; |
| 1977 | } else if (buildVal == -2) { |
| 1978 | return position; |
| 1979 | } |
| 1980 | } |
| 1981 | if(rtcpPacketTypeFlags & kRtcpApp) |
| 1982 | { |
| 1983 | buildVal = BuildAPP(rtcp_buffer, position); |
| 1984 | if (buildVal == -1) { |
| 1985 | return -1; |
| 1986 | } else if (buildVal == -2) { |
| 1987 | return position; |
| 1988 | } |
| 1989 | } |
| 1990 | if(rtcpPacketTypeFlags & kRtcpTmmbr) |
| 1991 | { |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 1992 | buildVal = BuildTMMBR(feedback_state.module, rtcp_buffer, position); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 1993 | if (buildVal == -1) { |
| 1994 | return -1; |
| 1995 | } else if (buildVal == -2) { |
| 1996 | return position; |
| 1997 | } |
| 1998 | } |
| 1999 | if(rtcpPacketTypeFlags & kRtcpTmmbn) |
| 2000 | { |
| 2001 | buildVal = BuildTMMBN(rtcp_buffer, position); |
| 2002 | if (buildVal == -1) { |
| 2003 | return -1; |
| 2004 | } else if (buildVal == -2) { |
| 2005 | return position; |
| 2006 | } |
| 2007 | } |
| 2008 | if(rtcpPacketTypeFlags & kRtcpNack) |
| 2009 | { |
| 2010 | std::string nackString; |
| 2011 | buildVal = BuildNACK(rtcp_buffer, position, nackSize, nackList, |
| 2012 | &nackString); |
| 2013 | if (buildVal == -1) { |
| 2014 | return -1; |
| 2015 | } else if (buildVal == -2) { |
| 2016 | return position; |
| 2017 | } |
| 2018 | TRACE_EVENT_INSTANT1("webrtc_rtp", "RTCPSender::NACK", |
| 2019 | "nacks", TRACE_STR_COPY(nackString.c_str())); |
| 2020 | _nackCount++; |
| 2021 | TRACE_COUNTER_ID1("webrtc_rtp", "RTCP_NACKCount", _SSRC, _nackCount); |
| 2022 | } |
| 2023 | if(rtcpPacketTypeFlags & kRtcpXrVoipMetric) |
| 2024 | { |
| 2025 | buildVal = BuildVoIPMetric(rtcp_buffer, position); |
| 2026 | if (buildVal == -1) { |
| 2027 | return -1; |
| 2028 | } else if (buildVal == -2) { |
| 2029 | return position; |
| 2030 | } |
| 2031 | } |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 2032 | if (rtcpPacketTypeFlags & kRtcpXrReceiverReferenceTime) |
| 2033 | { |
| 2034 | buildVal = BuildReceiverReferenceTime(rtcp_buffer, |
| 2035 | position, |
| 2036 | NTPsec, |
| 2037 | NTPfrac); |
| 2038 | if (buildVal == -1) { |
| 2039 | return -1; |
| 2040 | } else if (buildVal == -2) { |
| 2041 | return position; |
| 2042 | } |
| 2043 | } |
| 2044 | if (rtcpPacketTypeFlags & kRtcpXrDlrrReportBlock) |
| 2045 | { |
| 2046 | buildVal = BuildDlrr(rtcp_buffer, position, feedback_state.last_xr_rr); |
| 2047 | if (buildVal == -1) { |
| 2048 | return -1; |
| 2049 | } else if (buildVal == -2) { |
| 2050 | return position; |
| 2051 | } |
| 2052 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2053 | return position; |
| 2054 | } |
| 2055 | |
| 2056 | bool RTCPSender::ShouldSendReportBlocks(uint32_t rtcp_packet_type) const { |
| 2057 | return Status() == kRtcpCompound || |
| 2058 | (rtcp_packet_type & kRtcpReport) || |
| 2059 | (rtcp_packet_type & kRtcpSr) || |
| 2060 | (rtcp_packet_type & kRtcpRr); |
| 2061 | } |
| 2062 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 2063 | bool RTCPSender::PrepareReport(const FeedbackState& feedback_state, |
| 2064 | StreamStatistician* statistician, |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2065 | RTCPReportBlock* report_block, |
| 2066 | uint32_t* ntp_secs, uint32_t* ntp_frac) { |
| 2067 | // Do we have receive statistics to send? |
sprang@webrtc.org | 4f1f5fa | 2013-12-19 13:26:02 +0000 | [diff] [blame^] | 2068 | RtcpStatistics stats; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2069 | if (!statistician->GetStatistics(&stats, true)) |
| 2070 | return false; |
| 2071 | report_block->fractionLost = stats.fraction_lost; |
| 2072 | report_block->cumulativeLost = stats.cumulative_lost; |
| 2073 | report_block->extendedHighSeqNum = |
| 2074 | stats.extended_max_sequence_number; |
| 2075 | report_block->jitter = stats.jitter; |
| 2076 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2077 | // get our NTP as late as possible to avoid a race |
| 2078 | _clock->CurrentNtp(*ntp_secs, *ntp_frac); |
| 2079 | |
| 2080 | // Delay since last received report |
| 2081 | uint32_t delaySinceLastReceivedSR = 0; |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 2082 | if ((feedback_state.last_rr_ntp_secs != 0) || |
| 2083 | (feedback_state.last_rr_ntp_frac != 0)) { |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2084 | // get the 16 lowest bits of seconds and the 16 higest bits of fractions |
| 2085 | uint32_t now=*ntp_secs&0x0000FFFF; |
| 2086 | now <<=16; |
| 2087 | now += (*ntp_frac&0xffff0000)>>16; |
| 2088 | |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 2089 | uint32_t receiveTime = feedback_state.last_rr_ntp_secs&0x0000FFFF; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2090 | receiveTime <<=16; |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 2091 | receiveTime += (feedback_state.last_rr_ntp_frac&0xffff0000)>>16; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2092 | |
| 2093 | delaySinceLastReceivedSR = now-receiveTime; |
| 2094 | } |
| 2095 | report_block->delaySinceLastSR = delaySinceLastReceivedSR; |
pbos@webrtc.org | 4e7777b | 2013-09-09 16:02:19 +0000 | [diff] [blame] | 2096 | report_block->lastSR = feedback_state.remote_sr; |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2097 | return true; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2098 | } |
| 2099 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2100 | int32_t |
| 2101 | RTCPSender::SendToNetwork(const uint8_t* dataBuffer, |
| 2102 | const uint16_t length) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2103 | { |
| 2104 | CriticalSectionScoped lock(_criticalSectionTransport); |
| 2105 | if(_cbTransport) |
| 2106 | { |
| 2107 | if(_cbTransport->SendRTCPPacket(_id, dataBuffer, length) > 0) |
| 2108 | { |
| 2109 | return 0; |
| 2110 | } |
| 2111 | } |
| 2112 | return -1; |
| 2113 | } |
| 2114 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2115 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2116 | RTCPSender::SetCSRCStatus(const bool include) |
| 2117 | { |
| 2118 | _includeCSRCs = include; |
| 2119 | return 0; |
| 2120 | } |
| 2121 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2122 | int32_t |
| 2123 | RTCPSender::SetCSRCs(const uint32_t arrOfCSRC[kRtpCsrcSize], |
| 2124 | const uint8_t arrLength) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2125 | { |
| 2126 | if(arrLength > kRtpCsrcSize) |
| 2127 | { |
| 2128 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, "%s invalid argument", __FUNCTION__); |
| 2129 | assert(false); |
| 2130 | return -1; |
| 2131 | } |
| 2132 | |
| 2133 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 2134 | |
| 2135 | for(int i = 0; i < arrLength;i++) |
| 2136 | { |
| 2137 | _CSRC[i] = arrOfCSRC[i]; |
| 2138 | } |
| 2139 | _CSRCs = arrLength; |
| 2140 | return 0; |
| 2141 | } |
| 2142 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2143 | int32_t |
| 2144 | RTCPSender::SetApplicationSpecificData(const uint8_t subType, |
| 2145 | const uint32_t name, |
| 2146 | const uint8_t* data, |
| 2147 | const uint16_t length) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2148 | { |
| 2149 | if(length %4 != 0) |
| 2150 | { |
| 2151 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, "%s invalid argument", __FUNCTION__); |
| 2152 | return -1; |
| 2153 | } |
| 2154 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 2155 | |
| 2156 | if(_appData) |
| 2157 | { |
| 2158 | delete [] _appData; |
| 2159 | } |
| 2160 | |
| 2161 | _appSend = true; |
| 2162 | _appSubType = subType; |
| 2163 | _appName = name; |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2164 | _appData = new uint8_t[length]; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2165 | _appLength = length; |
| 2166 | memcpy(_appData, data, length); |
| 2167 | return 0; |
| 2168 | } |
| 2169 | |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2170 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2171 | RTCPSender::SetRTCPVoIPMetrics(const RTCPVoIPMetric* VoIPMetric) |
| 2172 | { |
| 2173 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 2174 | memcpy(&_xrVoIPMetric, VoIPMetric, sizeof(RTCPVoIPMetric)); |
| 2175 | |
| 2176 | _xrSendVoIPMetric = true; |
| 2177 | return 0; |
| 2178 | } |
| 2179 | |
asapersson@webrtc.org | d6da239 | 2013-10-02 13:15:34 +0000 | [diff] [blame] | 2180 | void RTCPSender::SendRtcpXrReceiverReferenceTime(bool enable) { |
| 2181 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 2182 | xrSendReceiverReferenceTimeEnabled_ = enable; |
| 2183 | } |
| 2184 | |
asapersson@webrtc.org | 3dc7ff3 | 2013-11-21 08:57:04 +0000 | [diff] [blame] | 2185 | bool RTCPSender::RtcpXrReceiverReferenceTime() const { |
| 2186 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 2187 | return xrSendReceiverReferenceTimeEnabled_; |
| 2188 | } |
| 2189 | |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2190 | // called under critsect _criticalSectionRTCPSender |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2191 | int32_t RTCPSender::WriteAllReportBlocksToBuffer( |
| 2192 | uint8_t* rtcpbuffer, |
| 2193 | int pos, |
| 2194 | uint8_t& numberOfReportBlocks, |
| 2195 | const uint32_t NTPsec, |
| 2196 | const uint32_t NTPfrac) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2197 | // sanity one block |
| 2198 | if(pos + 24 >= IP_PACKET_SIZE) { |
| 2199 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, |
| 2200 | "%s invalid argument", __FUNCTION__); |
| 2201 | return -1; |
| 2202 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2203 | numberOfReportBlocks = external_report_blocks_.size(); |
| 2204 | numberOfReportBlocks += internal_report_blocks_.size(); |
| 2205 | if ((pos + numberOfReportBlocks * 24) >= IP_PACKET_SIZE) { |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2206 | WEBRTC_TRACE(kTraceError, kTraceRtpRtcp, _id, |
| 2207 | "%s invalid argument", __FUNCTION__); |
| 2208 | return -1; |
| 2209 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2210 | pos = WriteReportBlocksToBuffer(rtcpbuffer, pos, internal_report_blocks_); |
| 2211 | while (!internal_report_blocks_.empty()) { |
| 2212 | delete internal_report_blocks_.begin()->second; |
| 2213 | internal_report_blocks_.erase(internal_report_blocks_.begin()); |
| 2214 | } |
| 2215 | pos = WriteReportBlocksToBuffer(rtcpbuffer, pos, external_report_blocks_); |
| 2216 | return pos; |
| 2217 | } |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2218 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2219 | int32_t RTCPSender::WriteReportBlocksToBuffer( |
| 2220 | uint8_t* rtcpbuffer, |
| 2221 | int32_t position, |
| 2222 | const std::map<uint32_t, RTCPReportBlock*>& report_blocks) { |
| 2223 | std::map<uint32_t, RTCPReportBlock*>::const_iterator it = |
| 2224 | report_blocks.begin(); |
| 2225 | for (; it != report_blocks.end(); it++) { |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2226 | uint32_t remoteSSRC = it->first; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2227 | RTCPReportBlock* reportBlock = it->second; |
| 2228 | if (reportBlock) { |
| 2229 | // Remote SSRC |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2230 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+position, remoteSSRC); |
| 2231 | position += 4; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2232 | |
| 2233 | // fraction lost |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2234 | rtcpbuffer[position++] = reportBlock->fractionLost; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2235 | |
| 2236 | // cumulative loss |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2237 | ModuleRTPUtility::AssignUWord24ToBuffer(rtcpbuffer+position, |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2238 | reportBlock->cumulativeLost); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2239 | position += 3; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2240 | |
| 2241 | // extended highest seq_no, contain the highest sequence number received |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2242 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+position, |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2243 | reportBlock->extendedHighSeqNum); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2244 | position += 4; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2245 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2246 | // Jitter |
| 2247 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+position, |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2248 | reportBlock->jitter); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2249 | position += 4; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2250 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2251 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+position, |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2252 | reportBlock->lastSR); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2253 | position += 4; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2254 | |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2255 | ModuleRTPUtility::AssignUWord32ToBuffer(rtcpbuffer+position, |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2256 | reportBlock->delaySinceLastSR); |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2257 | position += 4; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2258 | } |
| 2259 | } |
stefan@webrtc.org | a20e2d4 | 2013-08-21 20:58:21 +0000 | [diff] [blame] | 2260 | return position; |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2261 | } |
| 2262 | |
| 2263 | // no callbacks allowed inside this function |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2264 | int32_t |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2265 | RTCPSender::SetTMMBN(const TMMBRSet* boundingSet, |
pbos@webrtc.org | b57da65 | 2013-04-08 11:08:41 +0000 | [diff] [blame] | 2266 | const uint32_t maxBitrateKbit) |
andrew@webrtc.org | b015cbe | 2012-10-22 18:19:23 +0000 | [diff] [blame] | 2267 | { |
| 2268 | CriticalSectionScoped lock(_criticalSectionRTCPSender); |
| 2269 | |
| 2270 | if (0 == _tmmbrHelp.SetTMMBRBoundingSetToSend(boundingSet, maxBitrateKbit)) |
| 2271 | { |
| 2272 | _sendTMMBN = true; |
| 2273 | return 0; |
| 2274 | } |
| 2275 | return -1; |
| 2276 | } |
pbos@webrtc.org | 3b89e10 | 2013-07-03 15:12:26 +0000 | [diff] [blame] | 2277 | } // namespace webrtc |