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1 /* | 1 /* |
2 * Copyright 2016 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2016 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_MODULES_AUDIO_PROCESSING_UTILITY_BLOCK_MEAN_CALCULATOR_H_ | 11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_BLOCK_MEAN_CALCULATOR_H_ |
12 #define WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_BLOCK_MEAN_CALCULATOR_H_ | 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_BLOCK_MEAN_CALCULATOR_H_ |
13 | 13 |
14 #include <stddef.h> | 14 #include <stddef.h> |
15 | 15 |
16 #include "webrtc/rtc_base/constructormagic.h" | 16 #include "webrtc/base/constructormagic.h" |
17 | 17 |
18 namespace webrtc { | 18 namespace webrtc { |
19 | 19 |
20 // BlockMeanCalculator calculates the mean of a block of values. Values are | 20 // BlockMeanCalculator calculates the mean of a block of values. Values are |
21 // added one after another, and the mean is updated at the end of every block. | 21 // added one after another, and the mean is updated at the end of every block. |
22 class BlockMeanCalculator { | 22 class BlockMeanCalculator { |
23 public: | 23 public: |
24 explicit BlockMeanCalculator(size_t block_length); | 24 explicit BlockMeanCalculator(size_t block_length); |
25 | 25 |
26 // Reset. | 26 // Reset. |
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43 size_t count_; | 43 size_t count_; |
44 float sum_; | 44 float sum_; |
45 float mean_; | 45 float mean_; |
46 | 46 |
47 RTC_DISALLOW_COPY_AND_ASSIGN(BlockMeanCalculator); | 47 RTC_DISALLOW_COPY_AND_ASSIGN(BlockMeanCalculator); |
48 }; | 48 }; |
49 | 49 |
50 } // namespace webrtc | 50 } // namespace webrtc |
51 | 51 |
52 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_BLOCK_MEAN_CALCULATOR_H_ | 52 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_UTILITY_BLOCK_MEAN_CALCULATOR_H_ |
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