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| 1 /* |
| 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. |
| 3 * |
| 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 |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_SUPPRESSION_GAIN_H_ |
| 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_SUPPRESSION_GAIN_H_ |
| 13 |
| 14 #include <array> |
| 15 |
| 16 #include "webrtc/base/constructormagic.h" |
| 17 #include "webrtc/modules/audio_processing/aec3/aec3_common.h" |
| 18 #include "webrtc/modules/audio_processing/aec3/fft_buffer.h" |
| 19 |
| 20 namespace webrtc { |
| 21 namespace aec3 { |
| 22 #if defined(WEBRTC_ARCH_X86_FAMILY) |
| 23 |
| 24 void ComputeGains_SSE2( |
| 25 const std::array<float, kFftLengthBy2Plus1>& nearend_power, |
| 26 const std::array<float, kFftLengthBy2Plus1>& residual_echo_power, |
| 27 const std::array<float, kFftLengthBy2Plus1>& comfort_noise_power, |
| 28 float strong_nearend_margin, |
| 29 std::array<float, kFftLengthBy2 - 1>* previous_gain_squared, |
| 30 std::array<float, kFftLengthBy2 - 1>* previous_masker, |
| 31 std::array<float, kFftLengthBy2Plus1>* gain); |
| 32 |
| 33 #endif |
| 34 |
| 35 void ComputeGains( |
| 36 const std::array<float, kFftLengthBy2Plus1>& nearend_power, |
| 37 const std::array<float, kFftLengthBy2Plus1>& residual_echo_power, |
| 38 const std::array<float, kFftLengthBy2Plus1>& comfort_noise_power, |
| 39 float strong_nearend_margin, |
| 40 std::array<float, kFftLengthBy2 - 1>* previous_gain_squared, |
| 41 std::array<float, kFftLengthBy2 - 1>* previous_masker, |
| 42 std::array<float, kFftLengthBy2Plus1>* gain); |
| 43 |
| 44 } // namespace aec3 |
| 45 |
| 46 class SuppressionGain { |
| 47 public: |
| 48 explicit SuppressionGain(Aec3Optimization optimization); |
| 49 void GetGain(const std::array<float, kFftLengthBy2Plus1>& nearend_power, |
| 50 const std::array<float, kFftLengthBy2Plus1>& residual_echo_power, |
| 51 const std::array<float, kFftLengthBy2Plus1>& comfort_noise_power, |
| 52 float strong_nearend_margin, |
| 53 std::array<float, kFftLengthBy2Plus1>* gain); |
| 54 |
| 55 private: |
| 56 const Aec3Optimization optimization_; |
| 57 std::array<float, kFftLengthBy2 - 1> previous_gain_squared_; |
| 58 std::array<float, kFftLengthBy2 - 1> previous_masker_; |
| 59 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(SuppressionGain); |
| 60 }; |
| 61 |
| 62 } // namespace webrtc |
| 63 |
| 64 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_SUPPRESSION_GAIN_H_ |
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