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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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299 size_t fci_length = 2 + (rpsi_.NumberOfValidBits / 8) + padding_bytes_; | 299 size_t fci_length = 2 + (rpsi_.NumberOfValidBits / 8) + padding_bytes_; |
300 return kCommonFbFmtLength + fci_length; | 300 return kCommonFbFmtLength + fci_length; |
301 } | 301 } |
302 | 302 |
303 uint8_t padding_bytes_; | 303 uint8_t padding_bytes_; |
304 RTCPUtility::RTCPPacketPSFBRPSI rpsi_; | 304 RTCPUtility::RTCPPacketPSFBRPSI rpsi_; |
305 | 305 |
306 RTC_DISALLOW_COPY_AND_ASSIGN(Rpsi); | 306 RTC_DISALLOW_COPY_AND_ASSIGN(Rpsi); |
307 }; | 307 }; |
308 | 308 |
309 // Full intra request (FIR) (RFC 5104). | |
310 // | |
311 // FCI: | |
312 // | |
313 // 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 | |
315 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
316 // | SSRC | | |
317 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
318 // | Seq nr. | Reserved | | |
319 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |
320 | |
321 class Fir : public RtcpPacket { | |
322 public: | |
323 Fir() : RtcpPacket() { | |
324 memset(&fir_, 0, sizeof(fir_)); | |
325 memset(&fir_item_, 0, sizeof(fir_item_)); | |
326 } | |
327 | |
328 virtual ~Fir() {} | |
329 | |
330 void From(uint32_t ssrc) { | |
331 fir_.SenderSSRC = ssrc; | |
332 } | |
333 void To(uint32_t ssrc) { | |
334 fir_item_.SSRC = ssrc; | |
335 } | |
336 void WithCommandSeqNum(uint8_t seq_num) { | |
337 fir_item_.CommandSequenceNumber = seq_num; | |
338 } | |
339 | |
340 protected: | |
341 bool Create(uint8_t* packet, | |
342 size_t* index, | |
343 size_t max_length, | |
344 RtcpPacket::PacketReadyCallback* callback) const override; | |
345 | |
346 private: | |
347 size_t BlockLength() const { | |
348 const size_t kFciLength = 8; | |
349 return kCommonFbFmtLength + kFciLength; | |
350 } | |
351 | |
352 RTCPUtility::RTCPPacketPSFBFIR fir_; | |
353 RTCPUtility::RTCPPacketPSFBFIRItem fir_item_; | |
354 }; | |
355 | |
356 // From RFC 3611: RTP Control Protocol Extended Reports (RTCP XR). | 309 // From RFC 3611: RTP Control Protocol Extended Reports (RTCP XR). |
357 // | 310 // |
358 // Format for XR packets: | 311 // Format for XR packets: |
359 // | 312 // |
360 // 0 1 2 3 | 313 // 0 1 2 3 |
361 // 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 | 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 |
362 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 315 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
363 // |V=2|P|reserved | PT=XR=207 | length | | 316 // |V=2|P|reserved | PT=XR=207 | length | |
364 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | 317 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
365 // | SSRC | | 318 // | SSRC | |
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439 | 392 |
440 private: | 393 private: |
441 const size_t buffer_length_; | 394 const size_t buffer_length_; |
442 size_t length_; | 395 size_t length_; |
443 rtc::scoped_ptr<uint8_t[]> buffer_; | 396 rtc::scoped_ptr<uint8_t[]> buffer_; |
444 }; | 397 }; |
445 | 398 |
446 } // namespace rtcp | 399 } // namespace rtcp |
447 } // namespace webrtc | 400 } // namespace webrtc |
448 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_H_ | 401 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_H_ |
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