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1 /* | 1 /* |
2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2017 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_AEC3_ERL_ESTIMATOR_H_ | 11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ERL_ESTIMATOR_H_ |
12 #define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ERL_ESTIMATOR_H_ | 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ERL_ESTIMATOR_H_ |
13 | 13 |
14 #include <array> | 14 #include <array> |
15 | 15 |
| 16 #include "webrtc/base/constructormagic.h" |
16 #include "webrtc/modules/audio_processing/aec3/aec3_common.h" | 17 #include "webrtc/modules/audio_processing/aec3/aec3_common.h" |
17 #include "webrtc/rtc_base/constructormagic.h" | |
18 | 18 |
19 namespace webrtc { | 19 namespace webrtc { |
20 | 20 |
21 // Estimates the echo return loss based on the signal spectra. | 21 // Estimates the echo return loss based on the signal spectra. |
22 class ErlEstimator { | 22 class ErlEstimator { |
23 public: | 23 public: |
24 ErlEstimator(); | 24 ErlEstimator(); |
25 ~ErlEstimator(); | 25 ~ErlEstimator(); |
26 | 26 |
27 // Updates the ERL estimate. | 27 // Updates the ERL estimate. |
28 void Update(const std::array<float, kFftLengthBy2Plus1>& render_spectrum, | 28 void Update(const std::array<float, kFftLengthBy2Plus1>& render_spectrum, |
29 const std::array<float, kFftLengthBy2Plus1>& capture_spectrum); | 29 const std::array<float, kFftLengthBy2Plus1>& capture_spectrum); |
30 | 30 |
31 // Returns the most recent ERL estimate. | 31 // Returns the most recent ERL estimate. |
32 const std::array<float, kFftLengthBy2Plus1>& Erl() const { return erl_; } | 32 const std::array<float, kFftLengthBy2Plus1>& Erl() const { return erl_; } |
33 | 33 |
34 private: | 34 private: |
35 std::array<float, kFftLengthBy2Plus1> erl_; | 35 std::array<float, kFftLengthBy2Plus1> erl_; |
36 std::array<int, kFftLengthBy2Minus1> hold_counters_; | 36 std::array<int, kFftLengthBy2Minus1> hold_counters_; |
37 | 37 |
38 RTC_DISALLOW_COPY_AND_ASSIGN(ErlEstimator); | 38 RTC_DISALLOW_COPY_AND_ASSIGN(ErlEstimator); |
39 }; | 39 }; |
40 | 40 |
41 } // namespace webrtc | 41 } // namespace webrtc |
42 | 42 |
43 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ERL_ESTIMATOR_H_ | 43 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ERL_ESTIMATOR_H_ |
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