blob: 1112f93a719354baafc3c98844cc0b941a5acf10 [file] [log] [blame]
* 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.
#include <array>
#include <vector>
#include "absl/types/optional.h"
#include "api/array_view.h"
#include "api/audio/echo_canceller3_config.h"
#include "modules/audio_processing/aec3/aec3_common.h" // kFftLengthBy2Plus1
#include "modules/audio_processing/aec3/reverb_decay_estimator.h"
#include "modules/audio_processing/aec3/reverb_frequency_response.h"
namespace webrtc {
class ApmDataDumper;
// Class for estimating the model parameters for the reverberant echo.
class ReverbModelEstimator {
explicit ReverbModelEstimator(const EchoCanceller3Config& config);
// Updates the estimates based on new data.
void Update(rtc::ArrayView<const float> impulse_response,
const std::vector<std::array<float, kFftLengthBy2Plus1>>&
const absl::optional<float>& linear_filter_quality,
int filter_delay_blocks,
bool usable_linear_estimate,
bool stationary_block);
// Returns the exponential decay of the reverberant echo.
float ReverbDecay() const { return reverb_decay_estimator_.Decay(); }
// Return the frequency response of the reverberant echo.
rtc::ArrayView<const float> GetReverbFrequencyResponse() const {
return reverb_frequency_response_.FrequencyResponse();
// Dumps debug data.
void Dump(ApmDataDumper* data_dumper) const {
ReverbDecayEstimator reverb_decay_estimator_;
ReverbFrequencyResponse reverb_frequency_response_;
} // namespace webrtc