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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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| 312 private: | 312 private: |
| 313 static const int kMaxNumberOfChunks = 0x1f; | 313 static const int kMaxNumberOfChunks = 0x1f; |
| 314 | 314 |
| 315 size_t BlockLength() const; | 315 size_t BlockLength() const; |
| 316 | 316 |
| 317 std::vector<Chunk> chunks_; | 317 std::vector<Chunk> chunks_; |
| 318 | 318 |
| 319 RTC_DISALLOW_COPY_AND_ASSIGN(Sdes); | 319 RTC_DISALLOW_COPY_AND_ASSIGN(Sdes); |
| 320 }; | 320 }; |
| 321 | 321 |
| 322 // | |
| 323 // Bye packet (BYE) (RFC 3550). | |
| 324 // | |
| 325 // 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 | |
| 326 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 327 // |V=2|P| SC | PT=BYE=203 | length | | |
| 328 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 329 // | SSRC/CSRC | | |
| 330 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 331 // : ... : | |
| 332 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | |
| 333 // (opt) | length | reason for leaving ... | |
| 334 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 335 | |
| 336 class Bye : public RtcpPacket { | |
| 337 public: | |
| 338 Bye() : RtcpPacket() { | |
| 339 memset(&bye_, 0, sizeof(bye_)); | |
| 340 } | |
| 341 | |
| 342 virtual ~Bye() {} | |
| 343 | |
| 344 void From(uint32_t ssrc) { | |
| 345 bye_.SenderSSRC = ssrc; | |
| 346 } | |
| 347 | |
| 348 bool WithCsrc(uint32_t csrc); | |
| 349 | |
| 350 // TODO(sprang): Add support for reason field? | |
| 351 | |
| 352 protected: | |
| 353 bool Create(uint8_t* packet, | |
| 354 size_t* index, | |
| 355 size_t max_length, | |
| 356 RtcpPacket::PacketReadyCallback* callback) const override; | |
| 357 | |
| 358 private: | |
| 359 static const int kMaxNumberOfCsrcs = 0x1f - 1; // First item is sender SSRC. | |
| 360 | |
| 361 size_t BlockLength() const { | |
| 362 size_t source_count = 1 + csrcs_.size(); | |
| 363 return kHeaderLength + 4 * source_count; | |
| 364 } | |
| 365 | |
| 366 RTCPUtility::RTCPPacketBYE bye_; | |
| 367 std::vector<uint32_t> csrcs_; | |
| 368 | |
| 369 RTC_DISALLOW_COPY_AND_ASSIGN(Bye); | |
| 370 }; | |
| 371 | |
| 372 // RFC 4585: Feedback format. | 322 // RFC 4585: Feedback format. |
| 373 // | 323 // |
| 374 // Common packet format: | 324 // Common packet format: |
| 375 // | 325 // |
| 376 // 0 1 2 3 | 326 // 0 1 2 3 |
| 377 // 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 | 327 // 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 |
| 378 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 328 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 379 // |V=2|P| FMT | PT | length | | 329 // |V=2|P| FMT | PT | length | |
| 380 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 330 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 381 // | SSRC of packet sender | | 331 // | SSRC of packet sender | |
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| 997 | 947 |
| 998 private: | 948 private: |
| 999 const size_t buffer_length_; | 949 const size_t buffer_length_; |
| 1000 size_t length_; | 950 size_t length_; |
| 1001 rtc::scoped_ptr<uint8_t[]> buffer_; | 951 rtc::scoped_ptr<uint8_t[]> buffer_; |
| 1002 }; | 952 }; |
| 1003 | 953 |
| 1004 } // namespace rtcp | 954 } // namespace rtcp |
| 1005 } // namespace webrtc | 955 } // namespace webrtc |
| 1006 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ | 956 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ |
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