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/*
* Copyright (c) 2018 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.
*/
#ifndef MODULES_AUDIO_PROCESSING_AEC3_RENDER_REVERB_MODEL_H_
#define MODULES_AUDIO_PROCESSING_AEC3_RENDER_REVERB_MODEL_H_
#include "api/array_view.h"
#include "modules/audio_processing/aec3/reverb_model.h"
#include "modules/audio_processing/aec3/spectrum_buffer.h"
namespace webrtc {
// The RenderReverbModel class applies an exponential reverberant model over the
// render spectrum.
class RenderReverbModel {
public:
RenderReverbModel();
~RenderReverbModel();
// Resets the state.
void Reset();
// Applies the reverberation model over the render spectrum. It also returns
// the reverberation render power spectrum in the array reverb_power_spectrum.
void Apply(const SpectrumBuffer& spectrum_buffer,
int delay_blocks,
float reverb_decay,
rtc::ArrayView<float> reverb_power_spectrum);
// Gets the reverberation spectrum that was added to the render spectrum for
// computing the reverberation render spectrum.
rtc::ArrayView<const float> GetReverbContributionPowerSpectrum() const {
return render_reverb_.reverb();
}
private:
ReverbModel render_reverb_;
};
} // namespace webrtc.
#endif // MODULES_AUDIO_PROCESSING_AEC3_RENDER_REVERB_MODEL_H_
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