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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 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_LEVEL_CONTROLLER_NOISE_LEVEL_ESTIMATOR_H
_ | 11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_LEVEL_ESTIMATOR_H
_ |
12 #define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_LEVEL_ESTIMATOR_H
_ | 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_LEVEL_ESTIMATOR_H
_ |
13 | 13 |
| 14 #include "webrtc/base/constructormagic.h" |
14 #include "webrtc/modules/audio_processing/level_controller/signal_classifier.h" | 15 #include "webrtc/modules/audio_processing/level_controller/signal_classifier.h" |
15 #include "webrtc/rtc_base/constructormagic.h" | |
16 | 16 |
17 namespace webrtc { | 17 namespace webrtc { |
18 | 18 |
19 class NoiseLevelEstimator { | 19 class NoiseLevelEstimator { |
20 public: | 20 public: |
21 NoiseLevelEstimator(); | 21 NoiseLevelEstimator(); |
22 ~NoiseLevelEstimator(); | 22 ~NoiseLevelEstimator(); |
23 void Initialize(int sample_rate_hz); | 23 void Initialize(int sample_rate_hz); |
24 float Analyze(SignalClassifier::SignalType signal_type, float frame_energy); | 24 float Analyze(SignalClassifier::SignalType signal_type, float frame_energy); |
25 | 25 |
26 private: | 26 private: |
27 float min_noise_energy_ = 0.f; | 27 float min_noise_energy_ = 0.f; |
28 bool first_update_; | 28 bool first_update_; |
29 float noise_energy_; | 29 float noise_energy_; |
30 int noise_energy_hold_counter_; | 30 int noise_energy_hold_counter_; |
31 | 31 |
32 RTC_DISALLOW_COPY_AND_ASSIGN(NoiseLevelEstimator); | 32 RTC_DISALLOW_COPY_AND_ASSIGN(NoiseLevelEstimator); |
33 }; | 33 }; |
34 | 34 |
35 } // namespace webrtc | 35 } // namespace webrtc |
36 | 36 |
37 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_LEVEL_ESTIMATO
R_H_ | 37 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_NOISE_LEVEL_ESTIMATO
R_H_ |
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