chromium/third_party/blink/renderer/platform/audio/simple_fft_convolver.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_SIMPLE_FFT_CONVOLVER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_SIMPLE_FFT_CONVOLVER_H_

#include <memory>
#include "third_party/blink/renderer/platform/audio/audio_array.h"
#include "third_party/blink/renderer/platform/audio/fft_frame.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"

namespace blink {

// The SimpleFFTConvolver does an FFT convolution. It differs from
// the FFTConvolver in that it restricts the maximum size of
// |convolution_kernel| to |input_block_size|. This restriction allows it to do
// an FFT on every Process call. Therefore, the processing delay of
// the SimpleFFTConvolver is the same as that of the DirectConvolver and thus
// smaller than that of the FFTConvolver.
class SimpleFFTConvolver { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_AUDIO_SIMPLE_FFT_CONVOLVER_H_