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| 1 /* | 1 /* |
| 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 * | 9 * |
| 10 */ | 10 */ |
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| 210 return kSrHeaderLength + kSenderInfoLength + | 210 return kSrHeaderLength + kSenderInfoLength + |
| 211 report_blocks_.size() * kReportBlockLength; | 211 report_blocks_.size() * kReportBlockLength; |
| 212 } | 212 } |
| 213 | 213 |
| 214 RTCPUtility::RTCPPacketSR sr_; | 214 RTCPUtility::RTCPPacketSR sr_; |
| 215 std::vector<ReportBlock> report_blocks_; | 215 std::vector<ReportBlock> report_blocks_; |
| 216 | 216 |
| 217 RTC_DISALLOW_COPY_AND_ASSIGN(SenderReport); | 217 RTC_DISALLOW_COPY_AND_ASSIGN(SenderReport); |
| 218 }; | 218 }; |
| 219 | 219 |
| 220 // | |
| 221 // RTCP receiver report (RFC 3550). | |
| 222 // | |
| 223 // 0 1 2 3 | |
| 224 // 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 | |
| 225 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 226 // |V=2|P| RC | PT=RR=201 | length | | |
| 227 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 228 // | SSRC of packet sender | | |
| 229 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
| 230 // | report block(s) | | |
| 231 // | .... | | |
| 232 | |
| 233 class ReceiverReport : public RtcpPacket { | |
| 234 public: | |
| 235 ReceiverReport() : RtcpPacket() { | |
| 236 memset(&rr_, 0, sizeof(rr_)); | |
| 237 } | |
| 238 | |
| 239 virtual ~ReceiverReport() {} | |
| 240 | |
| 241 void From(uint32_t ssrc) { | |
| 242 rr_.SenderSSRC = ssrc; | |
| 243 } | |
| 244 bool WithReportBlock(const ReportBlock& block); | |
| 245 | |
| 246 protected: | |
| 247 bool Create(uint8_t* packet, | |
| 248 size_t* index, | |
| 249 size_t max_length, | |
| 250 RtcpPacket::PacketReadyCallback* callback) const override; | |
| 251 | |
| 252 private: | |
| 253 static const int kMaxNumberOfReportBlocks = 0x1F; | |
| 254 | |
| 255 size_t BlockLength() const { | |
| 256 const size_t kRrHeaderLength = 8; | |
| 257 return kRrHeaderLength + report_blocks_.size() * kReportBlockLength; | |
| 258 } | |
| 259 | |
| 260 RTCPUtility::RTCPPacketRR rr_; | |
| 261 std::vector<ReportBlock> report_blocks_; | |
| 262 | |
| 263 RTC_DISALLOW_COPY_AND_ASSIGN(ReceiverReport); | |
| 264 }; | |
| 265 | |
| 266 // Source Description (SDES) (RFC 3550). | 220 // Source Description (SDES) (RFC 3550). |
| 267 // | 221 // |
| 268 // 0 1 2 3 | 222 // 0 1 2 3 |
| 269 // 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 | 223 // 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 |
| 270 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 224 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 271 // header |V=2|P| SC | PT=SDES=202 | length | | 225 // header |V=2|P| SC | PT=SDES=202 | length | |
| 272 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | 226 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ |
| 273 // chunk | SSRC/CSRC_1 | | 227 // chunk | SSRC/CSRC_1 | |
| 274 // 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 228 // 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 275 // | SDES items | | 229 // | SDES items | |
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| 1056 | 1010 |
| 1057 private: | 1011 private: |
| 1058 const size_t buffer_length_; | 1012 const size_t buffer_length_; |
| 1059 size_t length_; | 1013 size_t length_; |
| 1060 rtc::scoped_ptr<uint8_t[]> buffer_; | 1014 rtc::scoped_ptr<uint8_t[]> buffer_; |
| 1061 }; | 1015 }; |
| 1062 | 1016 |
| 1063 } // namespace rtcp | 1017 } // namespace rtcp |
| 1064 } // namespace webrtc | 1018 } // namespace webrtc |
| 1065 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ | 1019 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ |
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