| /* |
| * Copyright (c) 2018 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "modules/audio_processing/aec3/subtractor_output.h" |
| |
| #include <numeric> |
| |
| namespace webrtc { |
| |
| SubtractorOutput::SubtractorOutput() = default; |
| SubtractorOutput::~SubtractorOutput() = default; |
| |
| void SubtractorOutput::Reset() { |
| s_main.fill(0.f); |
| s_shadow.fill(0.f); |
| e_main.fill(0.f); |
| e_shadow.fill(0.f); |
| E_main.re.fill(0.f); |
| E_main.im.fill(0.f); |
| E2_main.fill(0.f); |
| E2_shadow.fill(0.f); |
| e2_main = 0.f; |
| e2_shadow = 0.f; |
| s2_main = 0.f; |
| s2_shadow = 0.f; |
| y2 = 0.f; |
| } |
| |
| void SubtractorOutput::UpdatePowers(rtc::ArrayView<const float> y) { |
| const auto sum_of_squares = [](float a, float b) { return a + b * b; }; |
| y2 = std::accumulate(y.begin(), y.end(), 0.f, sum_of_squares); |
| e2_main = std::accumulate(e_main.begin(), e_main.end(), 0.f, sum_of_squares); |
| e2_shadow = |
| std::accumulate(e_shadow.begin(), e_shadow.end(), 0.f, sum_of_squares); |
| s2_main = std::accumulate(s_main.begin(), s_main.end(), 0.f, sum_of_squares); |
| s2_shadow = |
| std::accumulate(s_shadow.begin(), s_shadow.end(), 0.f, sum_of_squares); |
| } |
| |
| } // namespace webrtc |