tmmb_item.h (1813B)
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_TMMB_ITEM_H_ 12 #define MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMB_ITEM_H_ 13 14 #include <stddef.h> 15 #include <stdint.h> 16 17 namespace webrtc { 18 namespace rtcp { 19 // RFC5104, Section 3.5.4 20 // Temporary Maximum Media Stream Bitrate Request/Notification. 21 // Used both by TMMBR and TMMBN rtcp packets. 22 class TmmbItem { 23 public: 24 static constexpr size_t kLength = 8; 25 26 TmmbItem() : ssrc_(0), bitrate_bps_(0), packet_overhead_(0) {} 27 TmmbItem(uint32_t ssrc, uint64_t bitrate_bps, uint16_t overhead); 28 29 bool Parse(const uint8_t* buffer); 30 void Create(uint8_t* buffer) const; 31 32 void set_ssrc(uint32_t ssrc) { ssrc_ = ssrc; } 33 void set_bitrate_bps(uint64_t bitrate_bps) { bitrate_bps_ = bitrate_bps; } 34 void set_packet_overhead(uint16_t overhead); 35 36 uint32_t ssrc() const { return ssrc_; } 37 uint64_t bitrate_bps() const { return bitrate_bps_; } 38 uint16_t packet_overhead() const { return packet_overhead_; } 39 40 private: 41 // Media stream id. 42 uint32_t ssrc_; 43 // Maximum total media bit rate that the media receiver is 44 // currently prepared to accept for this media stream. 45 uint64_t bitrate_bps_; 46 // Per-packet overhead that the media receiver has observed 47 // for this media stream at its chosen reference protocol layer. 48 uint16_t packet_overhead_; 49 }; 50 } // namespace rtcp 51 } // namespace webrtc 52 #endif // MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMB_ITEM_H_