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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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256 const size_t kRrHeaderLength = 8; | 256 const size_t kRrHeaderLength = 8; |
257 return kRrHeaderLength + report_blocks_.size() * kReportBlockLength; | 257 return kRrHeaderLength + report_blocks_.size() * kReportBlockLength; |
258 } | 258 } |
259 | 259 |
260 RTCPUtility::RTCPPacketRR rr_; | 260 RTCPUtility::RTCPPacketRR rr_; |
261 std::vector<ReportBlock> report_blocks_; | 261 std::vector<ReportBlock> report_blocks_; |
262 | 262 |
263 RTC_DISALLOW_COPY_AND_ASSIGN(ReceiverReport); | 263 RTC_DISALLOW_COPY_AND_ASSIGN(ReceiverReport); |
264 }; | 264 }; |
265 | 265 |
266 // Transmission Time Offsets in RTP Streams (RFC 5450). | |
267 // | |
268 // 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 | |
270 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
271 // hdr |V=2|P| RC | PT=IJ=195 | length | | |
272 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
273 // | inter-arrival jitter | | |
274 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
275 // . . | |
276 // . . | |
277 // . . | |
278 // | inter-arrival jitter | | |
279 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
280 // | |
281 // If present, this RTCP packet must be placed after a receiver report | |
282 // (inside a compound RTCP packet), and MUST have the same value for RC | |
283 // (reception report count) as the receiver report. | |
284 | |
285 class Ij : public RtcpPacket { | |
286 public: | |
287 Ij() : RtcpPacket() {} | |
288 | |
289 virtual ~Ij() {} | |
290 | |
291 bool WithJitterItem(uint32_t jitter); | |
292 | |
293 protected: | |
294 bool Create(uint8_t* packet, | |
295 size_t* index, | |
296 size_t max_length, | |
297 RtcpPacket::PacketReadyCallback* callback) const override; | |
298 | |
299 private: | |
300 static const int kMaxNumberOfIjItems = 0x1f; | |
301 | |
302 size_t BlockLength() const { | |
303 return kHeaderLength + 4 * ij_items_.size(); | |
304 } | |
305 | |
306 std::vector<uint32_t> ij_items_; | |
307 | |
308 RTC_DISALLOW_COPY_AND_ASSIGN(Ij); | |
309 }; | |
310 | |
311 // Source Description (SDES) (RFC 3550). | 266 // Source Description (SDES) (RFC 3550). |
312 // | 267 // |
313 // 0 1 2 3 | 268 // 0 1 2 3 |
314 // 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 // 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 |
315 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 270 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
316 // header |V=2|P| SC | PT=SDES=202 | length | | 271 // header |V=2|P| SC | PT=SDES=202 | length | |
317 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ | 272 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ |
318 // chunk | SSRC/CSRC_1 | | 273 // chunk | SSRC/CSRC_1 | |
319 // 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 274 // 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
320 // | SDES items | | 275 // | SDES items | |
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1101 | 1056 |
1102 private: | 1057 private: |
1103 const size_t buffer_length_; | 1058 const size_t buffer_length_; |
1104 size_t length_; | 1059 size_t length_; |
1105 rtc::scoped_ptr<uint8_t[]> buffer_; | 1060 rtc::scoped_ptr<uint8_t[]> buffer_; |
1106 }; | 1061 }; |
1107 | 1062 |
1108 } // namespace rtcp | 1063 } // namespace rtcp |
1109 } // namespace webrtc | 1064 } // namespace webrtc |
1110 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ | 1065 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ |
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