blob: 94aecda7fc6d97decee7118c9c15a0ece2fe6689 [file] [log] [blame]
* Copyright (c) 2016 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 <memory>
#include "modules/audio_processing/include/audio_frame_view.h"
namespace webrtc {
class ApmDataDumper;
// Noise level estimator interface.
class NoiseLevelEstimator {
virtual ~NoiseLevelEstimator() = default;
// Analyzes a 10 ms `frame`, updates the noise level estimation and returns
// the value for the latter in dBFS.
virtual float Analyze(const AudioFrameView<const float>& frame) = 0;
// Creates a noise level estimator based on stationarity detection.
std::unique_ptr<NoiseLevelEstimator> CreateStationaryNoiseEstimator(
ApmDataDumper* data_dumper);
// Creates a noise level estimator based on noise floor detection.
std::unique_ptr<NoiseLevelEstimator> CreateNoiseFloorEstimator(
ApmDataDumper* data_dumper);
} // namespace webrtc