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/*
* 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/interface/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_
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