Line data    Source code

       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           0 :   ~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             :