From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- .../libwebrtc/webrtc/common_audio/real_fourier.cc | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 third_party/libwebrtc/webrtc/common_audio/real_fourier.cc (limited to 'third_party/libwebrtc/webrtc/common_audio/real_fourier.cc') diff --git a/third_party/libwebrtc/webrtc/common_audio/real_fourier.cc b/third_party/libwebrtc/webrtc/common_audio/real_fourier.cc new file mode 100644 index 0000000000..f759778a35 --- /dev/null +++ b/third_party/libwebrtc/webrtc/common_audio/real_fourier.cc @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2014 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 "common_audio/real_fourier.h" + +#include "common_audio/real_fourier_ooura.h" +#include "common_audio/real_fourier_openmax.h" +#include "common_audio/signal_processing/include/signal_processing_library.h" +#include "rtc_base/checks.h" + +namespace webrtc { + +using std::complex; + +const size_t RealFourier::kFftBufferAlignment = 32; + +std::unique_ptr RealFourier::Create(int fft_order) { +#if defined(RTC_USE_OPENMAX_DL) + return std::unique_ptr(new RealFourierOpenmax(fft_order)); +#else + return std::unique_ptr(new RealFourierOoura(fft_order)); +#endif +} + +int RealFourier::FftOrder(size_t length) { + RTC_CHECK_GT(length, 0U); + return WebRtcSpl_GetSizeInBits(static_cast(length - 1)); +} + +size_t RealFourier::FftLength(int order) { + RTC_CHECK_GE(order, 0); + return static_cast(1 << order); +} + +size_t RealFourier::ComplexLength(int order) { + return FftLength(order) / 2 + 1; +} + +RealFourier::fft_real_scoper RealFourier::AllocRealBuffer(int count) { + return fft_real_scoper(static_cast( + AlignedMalloc(sizeof(float) * count, kFftBufferAlignment))); +} + +RealFourier::fft_cplx_scoper RealFourier::AllocCplxBuffer(int count) { + return fft_cplx_scoper(static_cast*>( + AlignedMalloc(sizeof(complex) * count, kFftBufferAlignment))); +} + +} // namespace webrtc + -- cgit v1.2.3