522d71bf36
This CL adds the remaining code for the first version of EchoCanceller3. TBR=aleloi@webrtc.org BUG=webrtc:6018 Review-Url: https://codereview.webrtc.org/2678423005 Cr-Commit-Position: refs/heads/master@{#16801}
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/*
|
|
* 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 "webrtc/modules/audio_processing/aec3/aec3_fft.h"
|
|
|
|
#include <algorithm>
|
|
|
|
#include "webrtc/base/checks.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// TODO(peah): Change x to be std::array once the rest of the code allows this.
|
|
void Aec3Fft::ZeroPaddedFft(rtc::ArrayView<const float> x, FftData* X) const {
|
|
RTC_DCHECK(X);
|
|
RTC_DCHECK_EQ(kFftLengthBy2, x.size());
|
|
std::array<float, kFftLength> fft;
|
|
std::fill(fft.begin(), fft.begin() + kFftLengthBy2, 0.f);
|
|
std::copy(x.begin(), x.end(), fft.begin() + kFftLengthBy2);
|
|
Fft(&fft, X);
|
|
}
|
|
|
|
void Aec3Fft::PaddedFft(rtc::ArrayView<const float> x,
|
|
rtc::ArrayView<float> x_old,
|
|
FftData* X) const {
|
|
RTC_DCHECK(X);
|
|
RTC_DCHECK_EQ(kFftLengthBy2, x.size());
|
|
RTC_DCHECK_EQ(kFftLengthBy2, x_old.size());
|
|
std::array<float, kFftLength> fft;
|
|
std::copy(x_old.begin(), x_old.end(), fft.begin());
|
|
std::copy(x.begin(), x.end(), fft.begin() + x_old.size());
|
|
std::copy(x.begin(), x.end(), x_old.begin());
|
|
Fft(&fft, X);
|
|
}
|
|
|
|
} // namespace webrtc
|