xref: /aosp_15_r20/external/webrtc/rtc_base/numerics/sample_stats.h (revision d9f758449e529ab9291ac668be2861e7a55c2422)
1*d9f75844SAndroid Build Coastguard Worker /*
2*d9f75844SAndroid Build Coastguard Worker  *  Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
3*d9f75844SAndroid Build Coastguard Worker  *
4*d9f75844SAndroid Build Coastguard Worker  *  Use of this source code is governed by a BSD-style license
5*d9f75844SAndroid Build Coastguard Worker  *  that can be found in the LICENSE file in the root of the source
6*d9f75844SAndroid Build Coastguard Worker  *  tree. An additional intellectual property rights grant can be found
7*d9f75844SAndroid Build Coastguard Worker  *  in the file PATENTS.  All contributing project authors may
8*d9f75844SAndroid Build Coastguard Worker  *  be found in the AUTHORS file in the root of the source tree.
9*d9f75844SAndroid Build Coastguard Worker  */
10*d9f75844SAndroid Build Coastguard Worker #ifndef RTC_BASE_NUMERICS_SAMPLE_STATS_H_
11*d9f75844SAndroid Build Coastguard Worker #define RTC_BASE_NUMERICS_SAMPLE_STATS_H_
12*d9f75844SAndroid Build Coastguard Worker 
13*d9f75844SAndroid Build Coastguard Worker #include "api/numerics/samples_stats_counter.h"
14*d9f75844SAndroid Build Coastguard Worker #include "api/units/data_rate.h"
15*d9f75844SAndroid Build Coastguard Worker #include "api/units/time_delta.h"
16*d9f75844SAndroid Build Coastguard Worker #include "api/units/timestamp.h"
17*d9f75844SAndroid Build Coastguard Worker 
18*d9f75844SAndroid Build Coastguard Worker namespace webrtc {
19*d9f75844SAndroid Build Coastguard Worker template <typename T>
20*d9f75844SAndroid Build Coastguard Worker class SampleStats;
21*d9f75844SAndroid Build Coastguard Worker 
22*d9f75844SAndroid Build Coastguard Worker // TODO(srte): Merge this implementation with SamplesStatsCounter.
23*d9f75844SAndroid Build Coastguard Worker template <>
24*d9f75844SAndroid Build Coastguard Worker class SampleStats<double> : public SamplesStatsCounter {
25*d9f75844SAndroid Build Coastguard Worker  public:
26*d9f75844SAndroid Build Coastguard Worker   double Max();
27*d9f75844SAndroid Build Coastguard Worker   double Mean();
28*d9f75844SAndroid Build Coastguard Worker   double Median();
29*d9f75844SAndroid Build Coastguard Worker   double Quantile(double quantile);
30*d9f75844SAndroid Build Coastguard Worker   double Min();
31*d9f75844SAndroid Build Coastguard Worker   double Variance();
32*d9f75844SAndroid Build Coastguard Worker   double StandardDeviation();
33*d9f75844SAndroid Build Coastguard Worker   int Count();
34*d9f75844SAndroid Build Coastguard Worker };
35*d9f75844SAndroid Build Coastguard Worker 
36*d9f75844SAndroid Build Coastguard Worker template <>
37*d9f75844SAndroid Build Coastguard Worker class SampleStats<TimeDelta> {
38*d9f75844SAndroid Build Coastguard Worker  public:
39*d9f75844SAndroid Build Coastguard Worker   void AddSample(TimeDelta delta);
40*d9f75844SAndroid Build Coastguard Worker   void AddSampleMs(double delta_ms);
41*d9f75844SAndroid Build Coastguard Worker   void AddSamples(const SampleStats<TimeDelta>& other);
42*d9f75844SAndroid Build Coastguard Worker   bool IsEmpty();
43*d9f75844SAndroid Build Coastguard Worker   TimeDelta Max();
44*d9f75844SAndroid Build Coastguard Worker   TimeDelta Mean();
45*d9f75844SAndroid Build Coastguard Worker   TimeDelta Median();
46*d9f75844SAndroid Build Coastguard Worker   TimeDelta Quantile(double quantile);
47*d9f75844SAndroid Build Coastguard Worker   TimeDelta Min();
48*d9f75844SAndroid Build Coastguard Worker   TimeDelta Variance();
49*d9f75844SAndroid Build Coastguard Worker   TimeDelta StandardDeviation();
50*d9f75844SAndroid Build Coastguard Worker   int Count();
51*d9f75844SAndroid Build Coastguard Worker 
52*d9f75844SAndroid Build Coastguard Worker  private:
53*d9f75844SAndroid Build Coastguard Worker   SampleStats<double> stats_;
54*d9f75844SAndroid Build Coastguard Worker };
55*d9f75844SAndroid Build Coastguard Worker 
56*d9f75844SAndroid Build Coastguard Worker template <>
57*d9f75844SAndroid Build Coastguard Worker class SampleStats<DataRate> {
58*d9f75844SAndroid Build Coastguard Worker  public:
59*d9f75844SAndroid Build Coastguard Worker   void AddSample(DataRate rate);
60*d9f75844SAndroid Build Coastguard Worker   void AddSampleBps(double rate_bps);
61*d9f75844SAndroid Build Coastguard Worker   void AddSamples(const SampleStats<DataRate>& other);
62*d9f75844SAndroid Build Coastguard Worker   bool IsEmpty();
63*d9f75844SAndroid Build Coastguard Worker   DataRate Max();
64*d9f75844SAndroid Build Coastguard Worker   DataRate Mean();
65*d9f75844SAndroid Build Coastguard Worker   DataRate Median();
66*d9f75844SAndroid Build Coastguard Worker   DataRate Quantile(double quantile);
67*d9f75844SAndroid Build Coastguard Worker   DataRate Min();
68*d9f75844SAndroid Build Coastguard Worker   DataRate Variance();
69*d9f75844SAndroid Build Coastguard Worker   DataRate StandardDeviation();
70*d9f75844SAndroid Build Coastguard Worker   int Count();
71*d9f75844SAndroid Build Coastguard Worker 
72*d9f75844SAndroid Build Coastguard Worker  private:
73*d9f75844SAndroid Build Coastguard Worker   SampleStats<double> stats_;
74*d9f75844SAndroid Build Coastguard Worker };
75*d9f75844SAndroid Build Coastguard Worker }  // namespace webrtc
76*d9f75844SAndroid Build Coastguard Worker 
77*d9f75844SAndroid Build Coastguard Worker #endif  // RTC_BASE_NUMERICS_SAMPLE_STATS_H_
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