psfb.h (1336B)
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 MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PSFB_H_ 13 #define MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PSFB_H_ 14 15 #include <stddef.h> 16 #include <stdint.h> 17 18 #include "modules/rtp_rtcp/source/rtcp_packet.h" 19 20 namespace webrtc { 21 namespace rtcp { 22 23 // PSFB: Payload-specific feedback message. 24 // RFC 4585, Section 6.3. 25 class Psfb : public RtcpPacket { 26 public: 27 static constexpr uint8_t kPacketType = 206; 28 static constexpr uint8_t kAfbMessageType = 15; 29 30 Psfb() = default; 31 ~Psfb() override = default; 32 33 void SetMediaSsrc(uint32_t ssrc) { media_ssrc_ = ssrc; } 34 35 uint32_t media_ssrc() const { return media_ssrc_; } 36 37 protected: 38 static constexpr size_t kCommonFeedbackLength = 8; 39 void ParseCommonFeedback(const uint8_t* payload); 40 void CreateCommonFeedback(uint8_t* payload) const; 41 42 private: 43 uint32_t media_ssrc_ = 0; 44 }; 45 46 } // namespace rtcp 47 } // namespace webrtc 48 #endif // MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_PSFB_H_