b5c48b97f6
Ongoing fixes and improvements, transient suppressor is gone. Also, dropping isac because it doesn't seem to be useful, and is just build system deadweight now. Upstream references: Version: 131.0.6778.200 WebRTC: 79aff54b0fa9238ce3518dd9eaf9610cd6f22e82 Chromium: 2a19506ad24af755f2a215a4c61f775393e0db42
73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
/*
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* Copyright (c) 2018 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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#ifndef MODULES_AUDIO_PROCESSING_AEC3_REVERB_MODEL_ESTIMATOR_H_
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#define MODULES_AUDIO_PROCESSING_AEC3_REVERB_MODEL_ESTIMATOR_H_
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#include <array>
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#include <memory>
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#include <optional>
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#include <vector>
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#include "api/array_view.h"
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#include "api/audio/echo_canceller3_config.h"
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#include "modules/audio_processing/aec3/aec3_common.h" // kFftLengthBy2Plus1
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#include "modules/audio_processing/aec3/reverb_decay_estimator.h"
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#include "modules/audio_processing/aec3/reverb_frequency_response.h"
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namespace webrtc {
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class ApmDataDumper;
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// Class for estimating the model parameters for the reverberant echo.
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class ReverbModelEstimator {
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public:
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ReverbModelEstimator(const EchoCanceller3Config& config,
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size_t num_capture_channels);
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~ReverbModelEstimator();
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// Updates the estimates based on new data.
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void Update(
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rtc::ArrayView<const std::vector<float>> impulse_responses,
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rtc::ArrayView<const std::vector<std::array<float, kFftLengthBy2Plus1>>>
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frequency_responses,
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rtc::ArrayView<const std::optional<float>> linear_filter_qualities,
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rtc::ArrayView<const int> filter_delays_blocks,
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const std::vector<bool>& usable_linear_estimates,
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bool stationary_block);
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// Returns the exponential decay of the reverberant echo. The parameter `mild`
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// indicates which exponential decay to return, the default one or a milder
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// one.
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// TODO(peah): Correct to properly support multiple channels.
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float ReverbDecay(bool mild) const {
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return reverb_decay_estimators_[0]->Decay(mild);
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}
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// Return the frequency response of the reverberant echo.
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// TODO(peah): Correct to properly support multiple channels.
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rtc::ArrayView<const float> GetReverbFrequencyResponse() const {
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return reverb_frequency_responses_[0].FrequencyResponse();
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}
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// Dumps debug data.
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void Dump(ApmDataDumper* data_dumper) const {
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reverb_decay_estimators_[0]->Dump(data_dumper);
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}
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private:
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std::vector<std::unique_ptr<ReverbDecayEstimator>> reverb_decay_estimators_;
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std::vector<ReverbFrequencyResponse> reverb_frequency_responses_;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AEC3_REVERB_MODEL_ESTIMATOR_H_
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