|  | /* | 
|  | *  Copyright (c) 2017 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/spectrum_buffer.h" | 
|  |  | 
|  | #include <algorithm> | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | SpectrumBuffer::SpectrumBuffer(size_t size, size_t num_channels) | 
|  | : size(static_cast<int>(size)), | 
|  | buffer(size, | 
|  | std::vector<std::array<float, kFftLengthBy2Plus1>>(num_channels)) { | 
|  | for (auto& channel : buffer) { | 
|  | for (auto& c : channel) { | 
|  | std::fill(c.begin(), c.end(), 0.f); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | SpectrumBuffer::~SpectrumBuffer() = default; | 
|  |  | 
|  | }  // namespace webrtc |