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1 /* | |
2 * Copyright (c) 2015 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_MODULES_RTP_RTCP_SOURCE_PACKET_LOSS_STATS_H_ | |
12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_PACKET_LOSS_STATS_H_ | |
13 | |
14 #include <stdint.h> | |
15 #include <set> | |
16 | |
17 namespace webrtc { | |
18 | |
19 // Keeps track of statistics of packet loss including whether losses are a | |
20 // single packet or multiple packets in a row. | |
21 class PacketLossStats { | |
22 public: | |
23 PacketLossStats(); | |
24 ~PacketLossStats() {} | |
25 | |
26 // Adds a lost packet to the stats by sequence number. | |
27 void AddLostPacket(uint16_t sequence_number); | |
28 | |
29 // Query the number of packets that were lost by themselves, no neighboring | |
noahric
2015/06/26 00:21:19
Queries (for the rest too)
bcornell
2015/06/30 19:47:45
Done.
| |
30 // packets were lost. | |
31 int GetSingleLossCount() const; | |
32 | |
33 // Query the number of times that multiple packets with sequential numbers | |
34 // were lost. This is the number of events with more than one packet lost, | |
35 // regardless of the size of the event; | |
36 int GetMultipleLossEventCount() const; | |
37 | |
38 // Query the number of packets lost in multiple packet loss events. Combined | |
39 // with the event count, this can be used to determine how large events are. | |
noahric
2015/06/26 00:21:19
I'd say explicitly "the average event size", if th
bcornell
2015/06/30 19:47:45
Done.
| |
40 int GetMultipleLossPacketCount() const; | |
41 | |
42 private: | |
43 std::set<uint16_t> lost_packets_buffer_; | |
44 std::set<uint16_t> lost_packets_wrapped_buffer_; | |
45 int single_loss_historic_count_; | |
46 int multiple_loss_historic_event_count_; | |
47 int multiple_loss_historic_packet_count_; | |
48 | |
49 void ComputeLossCounts(int* out_single_loss_count, | |
50 int* out_multiple_loss_event_count, | |
51 int* out_multiple_loss_packet_count) const; | |
52 void PruneBuffer(); | |
53 }; | |
54 | |
55 } // namespace webrtc | |
56 | |
57 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_PACKET_LOSS_STATS_H_ | |
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