OLD | NEW |
1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 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 #ifndef WEBRTC_VIDEO_ENGINE_TEST_COMMON_STATISTICS_H_ | 10 #ifndef WEBRTC_TEST_STATISTICS_H_ |
11 #define WEBRTC_VIDEO_ENGINE_TEST_COMMON_STATISTICS_H_ | 11 #define WEBRTC_TEST_STATISTICS_H_ |
12 | 12 |
13 #include "webrtc/typedefs.h" | 13 #include "webrtc/typedefs.h" |
14 | 14 |
15 namespace webrtc { | 15 namespace webrtc { |
16 namespace test { | 16 namespace test { |
17 | 17 |
18 class Statistics { | 18 class Statistics { |
19 public: | 19 public: |
20 Statistics(); | 20 Statistics(); |
21 | 21 |
22 void AddSample(double sample); | 22 void AddSample(double sample); |
23 | 23 |
24 double Mean() const; | 24 double Mean() const; |
25 double Variance() const; | 25 double Variance() const; |
26 double StandardDeviation() const; | 26 double StandardDeviation() const; |
27 | 27 |
28 private: | 28 private: |
29 double sum_; | 29 double sum_; |
30 double sum_squared_; | 30 double sum_squared_; |
31 uint64_t count_; | 31 uint64_t count_; |
32 }; | 32 }; |
33 } // namespace test | 33 } // namespace test |
34 } // namespace webrtc | 34 } // namespace webrtc |
35 | 35 |
36 #endif // WEBRTC_VIDEO_ENGINE_TEST_COMMON_STATISTICS_H_ | 36 #endif // WEBRTC_TEST_STATISTICS_H_ |
OLD | NEW |