1 /* 2 * Copyright (c) 2014 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 WEBRTC_VIDEO_REPORT_BLOCK_STATS_H_ 12 #define WEBRTC_VIDEO_REPORT_BLOCK_STATS_H_ 13 14 #include <map> 15 #include <vector> 16 17 #include "webrtc/common_types.h" 18 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" 19 20 namespace webrtc { 21 22 // Helper class for rtcp statistics. 23 class ReportBlockStats { 24 public: 25 typedef std::map<uint32_t, RTCPReportBlock> ReportBlockMap; 26 typedef std::vector<RTCPReportBlock> ReportBlockVector; 27 ReportBlockStats(); 28 ~ReportBlockStats() {} 29 30 // Updates stats and stores report blocks. 31 // Returns an aggregate of the |report_blocks|. 32 RTCPReportBlock AggregateAndStore(const ReportBlockVector& report_blocks); 33 34 // Updates stats and stores report block. 35 void Store(const RtcpStatistics& rtcp_stats, 36 uint32_t remote_ssrc, 37 uint32_t source_ssrc); 38 39 // Returns the total fraction of lost packets (or -1 if less than two report 40 // blocks have been stored). 41 int FractionLostInPercent() const; 42 43 private: 44 // Updates the total number of packets/lost packets. 45 // Stores the report block. 46 // Returns the number of packets/lost packets since previous report block. 47 void StoreAndAddPacketIncrement(const RTCPReportBlock& report_block, 48 uint32_t* num_sequence_numbers, 49 uint32_t* num_lost_sequence_numbers); 50 51 // The total number of packets/lost packets. 52 uint32_t num_sequence_numbers_; 53 uint32_t num_lost_sequence_numbers_; 54 55 // Map holding the last stored report block (mapped by the source SSRC). 56 ReportBlockMap prev_report_blocks_; 57 }; 58 59 } // namespace webrtc 60 61 #endif // WEBRTC_VIDEO_REPORT_BLOCK_STATS_H_ 62 63