Reland of Merge webrtc/video_engine/ into webrtc/video/

webrtc/video_engine/report_block_stats.h

-/*
- *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_VIDEO_ENGINE_REPORT_BLOCK_STATS_H_
-#define WEBRTC_VIDEO_ENGINE_REPORT_BLOCK_STATS_H_
-
-#include <map>
-#include <vector>
-
-#include "webrtc/common_types.h"
-#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
-
-namespace webrtc {
-
-// Helper class for rtcp statistics.
-class ReportBlockStats {
- public:
-  typedef std::map<uint32_t, RTCPReportBlock> ReportBlockMap;
-  typedef std::vector<RTCPReportBlock> ReportBlockVector;
-  ReportBlockStats();
-  ~ReportBlockStats() {}
-
-  // Updates stats and stores report blocks.
-  // Returns an aggregate of the |report_blocks|.
-  RTCPReportBlock AggregateAndStore(const ReportBlockVector& report_blocks);
-
-  // Updates stats and stores report block.
-  void Store(const RtcpStatistics& rtcp_stats,
-             uint32_t remote_ssrc,
-             uint32_t source_ssrc);
-
-  // Returns the total fraction of lost packets (or -1 if less than two report
-  // blocks have been stored).
-  int FractionLostInPercent() const;
-
- private:
-  // Updates the total number of packets/lost packets.
-  // Stores the report block.
-  // Returns the number of packets/lost packets since previous report block.
-  void StoreAndAddPacketIncrement(const RTCPReportBlock& report_block,
-                                  uint32_t* num_sequence_numbers,
-                                  uint32_t* num_lost_sequence_numbers);
-
-  // The total number of packets/lost packets.
-  uint32_t num_sequence_numbers_;
-  uint32_t num_lost_sequence_numbers_;
-
-  // Map holding the last stored report block (mapped by the source SSRC).
-  ReportBlockMap prev_report_blocks_;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_VIDEO_ENGINE_REPORT_BLOCK_STATS_H_
-