mirror of
https://github.com/danog/libtgvoip.git
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68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
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/*
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* Copyright (c) 2017 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 "modules/audio_processing/aec3/erle_estimator.h"
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#include "api/array_view.h"
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#include "modules/audio_processing/aec3/aec3_common.h"
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#include "modules/audio_processing/logging/apm_data_dumper.h"
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#include "rtc_base/checks.h"
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namespace webrtc {
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ErleEstimator::ErleEstimator(size_t startup_phase_length_blocks_,
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float min_erle,
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float max_erle_lf,
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float max_erle_hf)
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: startup_phase_length_blocks__(startup_phase_length_blocks_),
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fullband_erle_estimator_(min_erle, max_erle_lf),
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subband_erle_estimator_(min_erle, max_erle_lf, max_erle_hf) {
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Reset(true);
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}
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ErleEstimator::~ErleEstimator() = default;
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void ErleEstimator::Reset(bool delay_change) {
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fullband_erle_estimator_.Reset();
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subband_erle_estimator_.Reset();
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if (delay_change) {
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blocks_since_reset_ = 0;
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}
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}
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void ErleEstimator::Update(rtc::ArrayView<const float> reverb_render_spectrum,
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rtc::ArrayView<const float> capture_spectrum,
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rtc::ArrayView<const float> subtractor_spectrum,
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bool converged_filter,
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bool onset_detection) {
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RTC_DCHECK_EQ(kFftLengthBy2Plus1, reverb_render_spectrum.size());
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RTC_DCHECK_EQ(kFftLengthBy2Plus1, capture_spectrum.size());
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RTC_DCHECK_EQ(kFftLengthBy2Plus1, subtractor_spectrum.size());
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const auto& X2_reverb = reverb_render_spectrum;
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const auto& Y2 = capture_spectrum;
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const auto& E2 = subtractor_spectrum;
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if (++blocks_since_reset_ < startup_phase_length_blocks__) {
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return;
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}
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subband_erle_estimator_.Update(X2_reverb, Y2, E2, converged_filter,
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onset_detection);
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fullband_erle_estimator_.Update(X2_reverb, Y2, E2, converged_filter);
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}
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void ErleEstimator::Dump(
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const std::unique_ptr<ApmDataDumper>& data_dumper) const {
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fullband_erle_estimator_.Dump(data_dumper);
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subband_erle_estimator_.Dump(data_dumper);
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}
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} // namespace webrtc
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