| /* |
| * Copyright (c) 2017 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_ECHO_REMOVER_METRICS_H_ |
| #define MODULES_AUDIO_PROCESSING_AEC3_ECHO_REMOVER_METRICS_H_ |
| |
| #include "modules/audio_processing/aec3/aec_state.h" |
| #include "rtc_base/constructormagic.h" |
| |
| namespace webrtc { |
| |
| // Handles the reporting of metrics for the echo remover. |
| class EchoRemoverMetrics { |
| public: |
| struct DbMetric { |
| DbMetric(); |
| DbMetric(float sum_value, float floor_value, float ceil_value); |
| void Update(float value); |
| float sum_value; |
| float floor_value; |
| float ceil_value; |
| }; |
| |
| EchoRemoverMetrics(); |
| |
| // Updates the metric with new data. |
| void Update( |
| const AecState& aec_state, |
| const std::array<float, kFftLengthBy2Plus1>& comfort_noise_spectrum, |
| const std::array<float, kFftLengthBy2Plus1>& suppressor_gain); |
| |
| // Returns true if the metrics have just been reported, otherwise false. |
| bool MetricsReported() { return metrics_reported_; } |
| |
| private: |
| // Resets the metrics. |
| void ResetMetrics(); |
| |
| int block_counter_ = 0; |
| std::array<DbMetric, 2> erl_; |
| std::array<DbMetric, 2> erle_; |
| std::array<DbMetric, 2> comfort_noise_; |
| std::array<DbMetric, 2> suppressor_gain_; |
| int active_render_count_ = 0; |
| bool saturated_capture_ = false; |
| bool metrics_reported_ = false; |
| |
| RTC_DISALLOW_COPY_AND_ASSIGN(EchoRemoverMetrics); |
| }; |
| |
| namespace aec3 { |
| |
| // Updates a banded metric of type DbMetric with the values in the supplied |
| // array. |
| void UpdateDbMetric(const std::array<float, kFftLengthBy2Plus1>& value, |
| std::array<EchoRemoverMetrics::DbMetric, 2>* statistic); |
| |
| // Transforms a DbMetric from the linear domain into the logarithmic domain. |
| int TransformDbMetricForReporting(bool negate, |
| float min_value, |
| float max_value, |
| float offset, |
| float scaling, |
| float value); |
| |
| } // namespace aec3 |
| |
| } // namespace webrtc |
| |
| #endif // MODULES_AUDIO_PROCESSING_AEC3_ECHO_REMOVER_METRICS_H_ |