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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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| 209 return kSrHeaderLength + kSenderInfoLength + | 209 return kSrHeaderLength + kSenderInfoLength + |
| 210 report_blocks_.size() * kReportBlockLength; | 210 report_blocks_.size() * kReportBlockLength; |
| 211 } | 211 } |
| 212 | 212 |
| 213 RTCPUtility::RTCPPacketSR sr_; | 213 RTCPUtility::RTCPPacketSR sr_; |
| 214 std::vector<ReportBlock> report_blocks_; | 214 std::vector<ReportBlock> report_blocks_; |
| 215 | 215 |
| 216 RTC_DISALLOW_COPY_AND_ASSIGN(SenderReport); | 216 RTC_DISALLOW_COPY_AND_ASSIGN(SenderReport); |
| 217 }; | 217 }; |
| 218 | 218 |
| 219 // | |
| 220 // RTCP receiver report (RFC 3550). | |
| 221 // | |
| 222 // 0 1 2 3 | |
| 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 | |
| 224 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 225 // |V=2|P| RC | PT=RR=201 | length | | |
| 226 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 227 // | SSRC of packet sender | | |
| 228 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
| 229 // | report block(s) | | |
| 230 // | .... | | |
| 231 | |
| 232 class ReceiverReport : public RtcpPacket { | |
| 233 public: | |
| 234 ReceiverReport() : RtcpPacket() { | |
| 235 memset(&rr_, 0, sizeof(rr_)); | |
| 236 } | |
| 237 | |
| 238 virtual ~ReceiverReport() {} | |
| 239 | |
| 240 void From(uint32_t ssrc) { | |
| 241 rr_.SenderSSRC = ssrc; | |
| 242 } | |
| 243 bool WithReportBlock(const ReportBlock& block); | |
| 244 | |
| 245 protected: | |
| 246 bool Create(uint8_t* packet, | |
| 247 size_t* index, | |
| 248 size_t max_length, | |
| 249 RtcpPacket::PacketReadyCallback* callback) const override; | |
| 250 | |
| 251 private: | |
| 252 static const int kMaxNumberOfReportBlocks = 0x1F; | |
| 253 | |
| 254 size_t BlockLength() const { | |
| 255 const size_t kRrHeaderLength = 8; | |
| 256 return kRrHeaderLength + report_blocks_.size() * kReportBlockLength; | |
| 257 } | |
| 258 | |
| 259 RTCPUtility::RTCPPacketRR rr_; | |
| 260 std::vector<ReportBlock> report_blocks_; | |
| 261 | |
| 262 RTC_DISALLOW_COPY_AND_ASSIGN(ReceiverReport); | |
| 263 }; | |
| 264 | |
| 265 // Source Description (SDES) (RFC 3550). | 219 // Source Description (SDES) (RFC 3550). |
| 266 // | 220 // |
| 267 // 0 1 2 3 | 221 // 0 1 2 3 |
| 268 // 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 | 222 // 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 |
| 269 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 223 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 270 // header |V=2|P| SC | PT=SDES=202 | length | | 224 // header |V=2|P| SC | PT=SDES=202 | length | |
| 271 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | 225 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ |
| 272 // chunk | SSRC/CSRC_1 | | 226 // chunk | SSRC/CSRC_1 | |
| 273 // 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 227 // 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 274 // | SDES items | | 228 // | SDES items | |
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| 895 | 849 |
| 896 private: | 850 private: |
| 897 const size_t buffer_length_; | 851 const size_t buffer_length_; |
| 898 size_t length_; | 852 size_t length_; |
| 899 rtc::scoped_ptr<uint8_t[]> buffer_; | 853 rtc::scoped_ptr<uint8_t[]> buffer_; |
| 900 }; | 854 }; |
| 901 | 855 |
| 902 } // namespace rtcp | 856 } // namespace rtcp |
| 903 } // namespace webrtc | 857 } // namespace webrtc |
| 904 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ | 858 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ |
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