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Side by Side Diff: webrtc/rtc_base/numerics/exp_filter.h

Issue 2877023002: Move webrtc/{base => rtc_base} (Closed)
Patch Set: update presubmit.py and DEPS include rules Created 3 years, 5 months ago
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1 /* 1 /*
2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 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 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 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
11 #ifndef WEBRTC_BASE_NUMERICS_EXP_FILTER_H_ 11 #ifndef WEBRTC_RTC_BASE_NUMERICS_EXP_FILTER_H_
12 #define WEBRTC_BASE_NUMERICS_EXP_FILTER_H_ 12 #define WEBRTC_RTC_BASE_NUMERICS_EXP_FILTER_H_
13 13
14 namespace rtc { 14 namespace rtc {
15 15
16 // This class can be used, for example, for smoothing the result of bandwidth 16 // This class can be used, for example, for smoothing the result of bandwidth
17 // estimation and packet loss estimation. 17 // estimation and packet loss estimation.
18 18
19 class ExpFilter { 19 class ExpFilter {
20 public: 20 public:
21 static const float kValueUndefined; 21 static const float kValueUndefined;
22 22
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38 // Changes the filter factor base to the given value |alpha|. 38 // Changes the filter factor base to the given value |alpha|.
39 void UpdateBase(float alpha); 39 void UpdateBase(float alpha);
40 40
41 private: 41 private:
42 float alpha_; // Filter factor base. 42 float alpha_; // Filter factor base.
43 float filtered_; // Current filter output. 43 float filtered_; // Current filter output.
44 const float max_; 44 const float max_;
45 }; 45 };
46 } // namespace rtc 46 } // namespace rtc
47 47
48 #endif // WEBRTC_BASE_NUMERICS_EXP_FILTER_H_ 48 #endif // WEBRTC_RTC_BASE_NUMERICS_EXP_FILTER_H_
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