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

Issue 1446513002: rtcp::Pli moved into own file and got a Parse function (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 */
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421 size_t BlockLength() const { 421 size_t BlockLength() const {
422 return 12 + app_.Size; 422 return 12 + app_.Size;
423 } 423 }
424 424
425 uint32_t ssrc_; 425 uint32_t ssrc_;
426 RTCPUtility::RTCPPacketAPP app_; 426 RTCPUtility::RTCPPacketAPP app_;
427 427
428 RTC_DISALLOW_COPY_AND_ASSIGN(App); 428 RTC_DISALLOW_COPY_AND_ASSIGN(App);
429 }; 429 };
430 430
431 // RFC 4585: Feedback format.
432 //
433 // Common packet format:
434 //
435 // 0 1 2 3
436 // 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
437 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
438 // |V=2|P| FMT | PT | length |
439 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
440 // | SSRC of packet sender |
441 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
442 // | SSRC of media source |
443 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
444 // : Feedback Control Information (FCI) :
445 // :
446
447 // Picture loss indication (PLI) (RFC 4585).
448 //
449 // FCI: no feedback control information.
450
451 class Pli : public RtcpPacket {
452 public:
453 Pli() : RtcpPacket() {
454 memset(&pli_, 0, sizeof(pli_));
455 }
456
457 virtual ~Pli() {}
458
459 void From(uint32_t ssrc) {
460 pli_.SenderSSRC = ssrc;
461 }
462 void To(uint32_t ssrc) {
463 pli_.MediaSSRC = ssrc;
464 }
465
466 protected:
467 bool Create(uint8_t* packet,
468 size_t* index,
469 size_t max_length,
470 RtcpPacket::PacketReadyCallback* callback) const override;
471
472 private:
473 size_t BlockLength() const {
474 return kCommonFbFmtLength;
475 }
476
477 RTCPUtility::RTCPPacketPSFBPLI pli_;
478
479 RTC_DISALLOW_COPY_AND_ASSIGN(Pli);
480 };
481
482 // Slice loss indication (SLI) (RFC 4585). 431 // Slice loss indication (SLI) (RFC 4585).
483 // 432 //
484 // FCI: 433 // FCI:
485 // 0 1 2 3 434 // 0 1 2 3
486 // 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 1 435 // 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
487 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 436 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
488 // | First | Number | PictureID | 437 // | First | Number | PictureID |
489 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 438 // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
490 439
491 class Sli : public RtcpPacket { 440 class Sli : public RtcpPacket {
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1056 1005
1057 private: 1006 private:
1058 const size_t buffer_length_; 1007 const size_t buffer_length_;
1059 size_t length_; 1008 size_t length_;
1060 rtc::scoped_ptr<uint8_t[]> buffer_; 1009 rtc::scoped_ptr<uint8_t[]> buffer_;
1061 }; 1010 };
1062 1011
1063 } // namespace rtcp 1012 } // namespace rtcp
1064 } // namespace webrtc 1013 } // namespace webrtc
1065 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_ 1014 #endif // WEBRTC_MODULES_RTP_RTCP_RTCP_PACKET_H_
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