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Side by Side Diff: webrtc/modules/rtp_rtcp/source/rtcp_packet.h

Issue 1420283022: rtcp::ReportBlock refactored to contain parsing (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Created 5 years, 1 month ago
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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 */
11 11
12 #ifndef WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ 12 #ifndef WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_
13 #define WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ 13 #define WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_
14 14
15 #include <map> 15 #include <map>
16 #include <string> 16 #include <string>
17 #include <vector> 17 #include <vector>
18 18
19 #include "webrtc/base/scoped_ptr.h" 19 #include "webrtc/base/scoped_ptr.h"
20 #include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h" 20 #include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h"
21 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" 21 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
22 #include "webrtc/typedefs.h" 22 #include "webrtc/typedefs.h"
23 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/report_block.h"
åsapersson 2015/11/12 14:26:25 nit: alphabetic order
danilchap 2015/11/12 15:30:45 Done.
23 24
24 namespace webrtc { 25 namespace webrtc {
25 namespace rtcp { 26 namespace rtcp {
26 27
27 static const int kCommonFbFmtLength = 12; 28 static const int kCommonFbFmtLength = 12;
28 static const int kReportBlockLength = 24; 29 static const int kReportBlockLength = 24;
29 30
30 class Dlrr; 31 class Dlrr;
31 class RawPacket; 32 class RawPacket;
32 class Rrtr; 33 class Rrtr;
(...skipping 105 matching lines...) Expand 10 before | Expand all | Expand 10 after
138 size_t* index, 139 size_t* index,
139 size_t max_length, 140 size_t max_length,
140 RtcpPacket::PacketReadyCallback* callback) const override; 141 RtcpPacket::PacketReadyCallback* callback) const override;
141 142
142 size_t BlockLength() const override; 143 size_t BlockLength() const override;
143 144
144 private: 145 private:
145 RTC_DISALLOW_COPY_AND_ASSIGN(Empty); 146 RTC_DISALLOW_COPY_AND_ASSIGN(Empty);
146 }; 147 };
147 148
148 // From RFC 3550, RTP: A Transport Protocol for Real-Time Applications.
149 //
150 // RTCP report block (RFC 3550).
151 //
152 // 0 1 2 3
153 // 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
154 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
155 // | SSRC_1 (SSRC of first source) |
156 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
157 // | fraction lost | cumulative number of packets lost |
158 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
159 // | extended highest sequence number received |
160 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
161 // | interarrival jitter |
162 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
163 // | last SR (LSR) |
164 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
165 // | delay since last SR (DLSR) |
166 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
167
168 class ReportBlock {
169 public:
170 ReportBlock() {
171 // TODO(asapersson): Consider adding a constructor to struct.
172 memset(&report_block_, 0, sizeof(report_block_));
173 }
174
175 ~ReportBlock() {}
176
177 void To(uint32_t ssrc) {
178 report_block_.SSRC = ssrc;
179 }
180 void WithFractionLost(uint8_t fraction_lost) {
181 report_block_.FractionLost = fraction_lost;
182 }
183 void WithCumulativeLost(uint32_t cumulative_lost) {
184 report_block_.CumulativeNumOfPacketsLost = cumulative_lost;
185 }
186 void WithExtHighestSeqNum(uint32_t ext_highest_seq_num) {
187 report_block_.ExtendedHighestSequenceNumber = ext_highest_seq_num;
188 }
189 void WithJitter(uint32_t jitter) {
190 report_block_.Jitter = jitter;
191 }
192 void WithLastSr(uint32_t last_sr) {
193 report_block_.LastSR = last_sr;
194 }
195 void WithDelayLastSr(uint32_t delay_last_sr) {
196 report_block_.DelayLastSR = delay_last_sr;
197 }
198
199 private:
200 friend class SenderReport;
201 friend class ReceiverReport;
202 RTCPUtility::RTCPPacketReportBlockItem report_block_;
203 };
204
205 // RTCP sender report (RFC 3550). 149 // RTCP sender report (RFC 3550).
206 // 150 //
207 // 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 1 151 // 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
208 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 152 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
209 // |V=2|P| RC | PT=SR=200 | length | 153 // |V=2|P| RC | PT=SR=200 | length |
210 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 154 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
211 // | SSRC of sender | 155 // | SSRC of sender |
212 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ 156 // +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
213 // | NTP timestamp, most significant word | 157 // | NTP timestamp, most significant word |
214 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 158 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after
261 static const int kMaxNumberOfReportBlocks = 0x1f; 205 static const int kMaxNumberOfReportBlocks = 0x1f;
262 206
263 size_t BlockLength() const { 207 size_t BlockLength() const {
264 const size_t kSrHeaderLength = 8; 208 const size_t kSrHeaderLength = 8;
265 const size_t kSenderInfoLength = 20; 209 const size_t kSenderInfoLength = 20;
266 return kSrHeaderLength + kSenderInfoLength + 210 return kSrHeaderLength + kSenderInfoLength +
267 report_blocks_.size() * kReportBlockLength; 211 report_blocks_.size() * kReportBlockLength;
268 } 212 }
269 213
270 RTCPUtility::RTCPPacketSR sr_; 214 RTCPUtility::RTCPPacketSR sr_;
271 std::vector<RTCPUtility::RTCPPacketReportBlockItem> report_blocks_; 215 std::vector<ReportBlock> report_blocks_;
272 216
273 RTC_DISALLOW_COPY_AND_ASSIGN(SenderReport); 217 RTC_DISALLOW_COPY_AND_ASSIGN(SenderReport);
274 }; 218 };
275 219
276 // 220 //
277 // RTCP receiver report (RFC 3550). 221 // RTCP receiver report (RFC 3550).
278 // 222 //
279 // 0 1 2 3 223 // 0 1 2 3
280 // 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 // 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
281 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 225 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
(...skipping 25 matching lines...) Expand all
307 251
308 private: 252 private:
309 static const int kMaxNumberOfReportBlocks = 0x1F; 253 static const int kMaxNumberOfReportBlocks = 0x1F;
310 254
311 size_t BlockLength() const { 255 size_t BlockLength() const {
312 const size_t kRrHeaderLength = 8; 256 const size_t kRrHeaderLength = 8;
313 return kRrHeaderLength + report_blocks_.size() * kReportBlockLength; 257 return kRrHeaderLength + report_blocks_.size() * kReportBlockLength;
314 } 258 }
315 259
316 RTCPUtility::RTCPPacketRR rr_; 260 RTCPUtility::RTCPPacketRR rr_;
317 std::vector<RTCPUtility::RTCPPacketReportBlockItem> report_blocks_; 261 std::vector<ReportBlock> report_blocks_;
318 262
319 RTC_DISALLOW_COPY_AND_ASSIGN(ReceiverReport); 263 RTC_DISALLOW_COPY_AND_ASSIGN(ReceiverReport);
320 }; 264 };
321 265
322 // Transmission Time Offsets in RTP Streams (RFC 5450). 266 // Transmission Time Offsets in RTP Streams (RFC 5450).
323 // 267 //
324 // 0 1 2 3 268 // 0 1 2 3
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 1 269 // 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
326 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 270 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
327 // hdr |V=2|P| RC | PT=IJ=195 | length | 271 // hdr |V=2|P| RC | PT=IJ=195 | length |
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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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