mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-19 00:27:51 +01:00
65c392265f
Specifically, I'm moving histogram_percentile_counter.h mathutils.h mod_ops.h moving_max_counter.h They shouldn't be part of the API, and moving them to an appropriate subdirectory of rtc_base/ is a good way to keep track of that. BUG=webrtc:8445 Change-Id: I78a999984a27ef935be2d7c3136475d5f209adda Reviewed-on: https://webrtc-review.googlesource.com/20870 Commit-Queue: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20832}
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
/*
|
|
* Copyright (c) 2017 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 RTC_BASE_NUMERICS_HISTOGRAM_PERCENTILE_COUNTER_H_
|
|
#define RTC_BASE_NUMERICS_HISTOGRAM_PERCENTILE_COUNTER_H_
|
|
|
|
#include <stdint.h>
|
|
#include <map>
|
|
#include <vector>
|
|
|
|
#include "api/optional.h"
|
|
|
|
namespace rtc {
|
|
// Calculates percentiles on the stream of data. Use |Add| methods to add new
|
|
// values. Use |GetPercentile| to get percentile of the currently added values.
|
|
class HistogramPercentileCounter {
|
|
public:
|
|
// Values below |long_tail_boundary| are stored as the histogram in an array.
|
|
// Values above - in a map.
|
|
explicit HistogramPercentileCounter(uint32_t long_tail_boundary);
|
|
~HistogramPercentileCounter();
|
|
void Add(uint32_t value);
|
|
void Add(uint32_t value, size_t count);
|
|
void Add(const HistogramPercentileCounter& other);
|
|
// Argument should be from 0 to 1.
|
|
rtc::Optional<uint32_t> GetPercentile(float fraction);
|
|
|
|
private:
|
|
std::vector<size_t> histogram_low_;
|
|
std::map<uint32_t, size_t> histogram_high_;
|
|
const uint32_t long_tail_boundary_;
|
|
size_t total_elements_;
|
|
size_t total_elements_low_;
|
|
};
|
|
} // namespace rtc
|
|
#endif // RTC_BASE_NUMERICS_HISTOGRAM_PERCENTILE_COUNTER_H_
|