1 /* 2 * Copyright (c) 2016 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 #ifndef MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMBN_H_ 12 #define MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMBN_H_ 13 14 #include <vector> 15 16 #include "modules/rtp_rtcp/source/rtcp_packet/rtpfb.h" 17 #include "modules/rtp_rtcp/source/rtcp_packet/tmmb_item.h" 18 19 namespace webrtc { 20 namespace rtcp { 21 class CommonHeader; 22 23 // Temporary Maximum Media Stream Bit Rate Notification (TMMBN). 24 // RFC 5104, Section 4.2.2. 25 class Tmmbn : public Rtpfb { 26 public: 27 static constexpr uint8_t kFeedbackMessageType = 4; 28 29 Tmmbn(); 30 ~Tmmbn() override; 31 32 // Parse assumes header is already parsed and validated. 33 bool Parse(const CommonHeader& packet); 34 35 void AddTmmbr(const TmmbItem& item); 36 items()37 const std::vector<TmmbItem>& items() const { return items_; } 38 39 size_t BlockLength() const override; 40 41 bool Create(uint8_t* packet, 42 size_t* index, 43 size_t max_length, 44 PacketReadyCallback callback) const override; 45 46 private: 47 // Media ssrc is unused, shadow base class setter and getter. 48 void SetMediaSsrc(uint32_t ssrc); 49 uint32_t media_ssrc() const; 50 51 std::vector<TmmbItem> items_; 52 }; 53 } // namespace rtcp 54 } // namespace webrtc 55 #endif // MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMBN_H_ 56