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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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| 357 | 357 |
| 358 size_t BlockLength() const { | 358 size_t BlockLength() const { |
| 359 return kHeaderLength + 4 * ij_items_.size(); | 359 return kHeaderLength + 4 * ij_items_.size(); |
| 360 } | 360 } |
| 361 | 361 |
| 362 std::vector<uint32_t> ij_items_; | 362 std::vector<uint32_t> ij_items_; |
| 363 | 363 |
| 364 RTC_DISALLOW_COPY_AND_ASSIGN(Ij); | 364 RTC_DISALLOW_COPY_AND_ASSIGN(Ij); |
| 365 }; | 365 }; |
| 366 | 366 |
| 367 // Source Description (SDES) (RFC 3550). | |
| 368 // | |
| 369 // 0 1 2 3 | |
| 370 // 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 | |
| 371 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 372 // header |V=2|P| SC | PT=SDES=202 | length | | |
| 373 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
| 374 // chunk | SSRC/CSRC_1 | | |
| 375 // 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 376 // | SDES items | | |
| 377 // | ... | | |
| 378 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
| 379 // chunk | SSRC/CSRC_2 | | |
| 380 // 2 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 381 // | SDES items | | |
| 382 // | ... | | |
| 383 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
| 384 // | |
| 385 // Canonical End-Point Identifier SDES Item (CNAME) | |
| 386 // | |
| 387 // 0 1 2 3 | |
| 388 // 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 | |
| 389 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 390 // | CNAME=1 | length | user and domain name ... | |
| 391 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 392 | |
| 393 class Sdes : public RtcpPacket { | |
| 394 public: | |
| 395 Sdes() : RtcpPacket() {} | |
| 396 | |
| 397 virtual ~Sdes() {} | |
| 398 | |
| 399 bool WithCName(uint32_t ssrc, const std::string& cname); | |
| 400 | |
| 401 struct Chunk { | |
| 402 uint32_t ssrc; | |
| 403 std::string name; | |
| 404 int null_octets; | |
| 405 }; | |
| 406 | |
| 407 protected: | |
| 408 bool Create(uint8_t* packet, | |
| 409 size_t* index, | |
| 410 size_t max_length, | |
| 411 RtcpPacket::PacketReadyCallback* callback) const override; | |
| 412 | |
| 413 private: | |
| 414 static const int kMaxNumberOfChunks = 0x1f; | |
| 415 | |
| 416 size_t BlockLength() const; | |
| 417 | |
| 418 std::vector<Chunk> chunks_; | |
| 419 | |
| 420 RTC_DISALLOW_COPY_AND_ASSIGN(Sdes); | |
| 421 }; | |
| 422 | |
| 423 // | 367 // |
| 424 // Bye packet (BYE) (RFC 3550). | 368 // Bye packet (BYE) (RFC 3550). |
| 425 // | 369 // |
| 426 // 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 | 370 // 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 |
| 427 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 371 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 428 // |V=2|P| SC | PT=BYE=203 | length | | 372 // |V=2|P| SC | PT=BYE=203 | length | |
| 429 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 373 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 430 // | SSRC/CSRC | | 374 // | SSRC/CSRC | |
| 431 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 375 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 432 // : ... : | 376 // : ... : |
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| 1157 | 1101 |
| 1158 private: | 1102 private: |
| 1159 const size_t buffer_length_; | 1103 const size_t buffer_length_; |
| 1160 size_t length_; | 1104 size_t length_; |
| 1161 rtc::scoped_ptr<uint8_t[]> buffer_; | 1105 rtc::scoped_ptr<uint8_t[]> buffer_; |
| 1162 }; | 1106 }; |
| 1163 | 1107 |
| 1164 } // namespace rtcp | 1108 } // namespace rtcp |
| 1165 } // namespace webrtc | 1109 } // namespace webrtc |
| 1166 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ | 1110 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ |
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