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https://github.com/danog/libtgvoip.git
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5caaaafa42
I'm now using the entire audio processing module from WebRTC as opposed to individual DSP algorithms pulled from there before. Seems to work better this way.
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "common_audio/real_fourier.h"
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#include "common_audio/real_fourier_ooura.h"
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#include "common_audio/signal_processing/include/signal_processing_library.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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using std::complex;
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const size_t RealFourier::kFftBufferAlignment = 32;
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std::unique_ptr<RealFourier> RealFourier::Create(int fft_order) {
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return std::unique_ptr<RealFourier>(new RealFourierOoura(fft_order));
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}
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int RealFourier::FftOrder(size_t length) {
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RTC_CHECK_GT(length, 0U);
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return WebRtcSpl_GetSizeInBits(static_cast<uint32_t>(length - 1));
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}
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size_t RealFourier::FftLength(int order) {
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RTC_CHECK_GE(order, 0);
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return size_t{1} << order;
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}
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size_t RealFourier::ComplexLength(int order) {
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return FftLength(order) / 2 + 1;
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}
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RealFourier::fft_real_scoper RealFourier::AllocRealBuffer(int count) {
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return fft_real_scoper(static_cast<float*>(
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AlignedMalloc(sizeof(float) * count, kFftBufferAlignment)));
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}
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RealFourier::fft_cplx_scoper RealFourier::AllocCplxBuffer(int count) {
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return fft_cplx_scoper(static_cast<complex<float>*>(
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AlignedMalloc(sizeof(complex<float>) * count, kFftBufferAlignment)));
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}
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} // namespace webrtc
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