1 /* 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. 3 * 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 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 * 10 */ 11 12 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PLI_H_ 13 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PLI_H_ 14 15 #include "webrtc/base/basictypes.h" 16 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h" 17 18 namespace webrtc { 19 namespace rtcp { 20 21 // Picture loss indication (PLI) (RFC 4585). 22 class Pli : public Psfb { 23 public: 24 static const uint8_t kFeedbackMessageType = 1; 25 Pli()26 Pli() {} ~Pli()27 virtual ~Pli() {} 28 29 // Parse assumes header is already parsed and validated. 30 bool Parse(const RTCPUtility::RtcpCommonHeader& header, 31 const uint8_t* payload); // Size of the payload is in the header. 32 33 protected: 34 bool Create(uint8_t* packet, 35 size_t* index, 36 size_t max_length, 37 RtcpPacket::PacketReadyCallback* callback) const override; 38 39 private: BlockLength()40 size_t BlockLength() const override { 41 return kHeaderLength + kCommonFeedbackLength; 42 } 43 44 RTC_DISALLOW_COPY_AND_ASSIGN(Pli); 45 }; 46 47 } // namespace rtcp 48 } // namespace webrtc 49 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PLI_H_ 50