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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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| 265 private: | 265 private: |
| 266 static const int kMaxNumberOfChunks = 0x1f; | 266 static const int kMaxNumberOfChunks = 0x1f; |
| 267 | 267 |
| 268 size_t BlockLength() const; | 268 size_t BlockLength() const; |
| 269 | 269 |
| 270 std::vector<Chunk> chunks_; | 270 std::vector<Chunk> chunks_; |
| 271 | 271 |
| 272 RTC_DISALLOW_COPY_AND_ASSIGN(Sdes); | 272 RTC_DISALLOW_COPY_AND_ASSIGN(Sdes); |
| 273 }; | 273 }; |
| 274 | 274 |
| 275 // Slice loss indication (SLI) (RFC 4585). | |
| 276 // | |
| 277 // FCI: | |
| 278 // 0 1 2 3 | |
| 279 // 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 | |
| 280 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 281 // | First | Number | PictureID | | |
| 282 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
| 283 | |
| 284 class Sli : public RtcpPacket { | |
| 285 public: | |
| 286 Sli() : RtcpPacket() { | |
| 287 memset(&sli_, 0, sizeof(sli_)); | |
| 288 memset(&sli_item_, 0, sizeof(sli_item_)); | |
| 289 } | |
| 290 | |
| 291 virtual ~Sli() {} | |
| 292 | |
| 293 void From(uint32_t ssrc) { | |
| 294 sli_.SenderSSRC = ssrc; | |
| 295 } | |
| 296 void To(uint32_t ssrc) { | |
| 297 sli_.MediaSSRC = ssrc; | |
| 298 } | |
| 299 void WithFirstMb(uint16_t first_mb) { | |
| 300 assert(first_mb <= 0x1fff); | |
| 301 sli_item_.FirstMB = first_mb; | |
| 302 } | |
| 303 void WithNumberOfMb(uint16_t number_mb) { | |
| 304 assert(number_mb <= 0x1fff); | |
| 305 sli_item_.NumberOfMB = number_mb; | |
| 306 } | |
| 307 void WithPictureId(uint8_t picture_id) { | |
| 308 assert(picture_id <= 0x3f); | |
| 309 sli_item_.PictureId = picture_id; | |
| 310 } | |
| 311 | |
| 312 protected: | |
| 313 bool Create(uint8_t* packet, | |
| 314 size_t* index, | |
| 315 size_t max_length, | |
| 316 RtcpPacket::PacketReadyCallback* callback) const override; | |
| 317 | |
| 318 private: | |
| 319 size_t BlockLength() const { | |
| 320 const size_t kFciLength = 4; | |
| 321 return kCommonFbFmtLength + kFciLength; | |
| 322 } | |
| 323 | |
| 324 RTCPUtility::RTCPPacketPSFBSLI sli_; | |
| 325 RTCPUtility::RTCPPacketPSFBSLIItem sli_item_; | |
| 326 | |
| 327 RTC_DISALLOW_COPY_AND_ASSIGN(Sli); | |
| 328 }; | |
| 329 | |
| 330 // Reference picture selection indication (RPSI) (RFC 4585). | 275 // Reference picture selection indication (RPSI) (RFC 4585). |
| 331 // | 276 // |
| 332 // FCI: | 277 // FCI: |
| 333 // | 278 // |
| 334 // 0 1 2 3 | 279 // 0 1 2 3 |
| 335 // 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 | 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 |
| 336 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 281 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 337 // | PB |0| Payload Type| Native RPSI bit string | | 282 // | PB |0| Payload Type| Native RPSI bit string | |
| 338 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 283 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| 339 // | defined per codec ... | Padding (0) | | 284 // | defined per codec ... | Padding (0) | |
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| 568 | 513 |
| 569 private: | 514 private: |
| 570 const size_t buffer_length_; | 515 const size_t buffer_length_; |
| 571 size_t length_; | 516 size_t length_; |
| 572 rtc::scoped_ptr<uint8_t[]> buffer_; | 517 rtc::scoped_ptr<uint8_t[]> buffer_; |
| 573 }; | 518 }; |
| 574 | 519 |
| 575 } // namespace rtcp | 520 } // namespace rtcp |
| 576 } // namespace webrtc | 521 } // namespace webrtc |
| 577 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_H_ | 522 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_H_ |
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