| /* |
| * 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. |
| */ |
| |
| #include "modules/audio_processing/aec3/echo_remover_metrics.h" |
| |
| #include <math.h> |
| #include <algorithm> |
| #include <numeric> |
| |
| #include "rtc_base/safe_minmax.h" |
| #include "system_wrappers/include/metrics.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| constexpr float kOneByMetricsCollectionBlocks = 1.f / kMetricsCollectionBlocks; |
| |
| } // namespace |
| |
| EchoRemoverMetrics::DbMetric::DbMetric() : DbMetric(0.f, 0.f, 0.f) {} |
| EchoRemoverMetrics::DbMetric::DbMetric(float sum_value, |
| float floor_value, |
| float ceil_value) |
| : sum_value(sum_value), floor_value(floor_value), ceil_value(ceil_value) {} |
| |
| void EchoRemoverMetrics::DbMetric::Update(float value) { |
| sum_value += value; |
| floor_value = std::min(floor_value, value); |
| ceil_value = std::max(ceil_value, value); |
| } |
| |
| EchoRemoverMetrics::EchoRemoverMetrics() { |
| ResetMetrics(); |
| } |
| |
| void EchoRemoverMetrics::ResetMetrics() { |
| erl_.fill(DbMetric(0.f, 10000.f, 0.000f)); |
| erle_.fill(DbMetric(0.f, 0.f, 1000.f)); |
| comfort_noise_.fill(DbMetric(0.f, 100000000.f, 0.f)); |
| suppressor_gain_.fill(DbMetric(0.f, 1.f, 0.f)); |
| active_render_count_ = 0; |
| saturated_capture_ = false; |
| } |
| |
| void EchoRemoverMetrics::Update( |
| const AecState& aec_state, |
| const std::array<float, kFftLengthBy2Plus1>& comfort_noise_spectrum, |
| const std::array<float, kFftLengthBy2Plus1>& suppressor_gain) { |
| metrics_reported_ = false; |
| if (++block_counter_ <= kMetricsCollectionBlocks) { |
| aec3::UpdateDbMetric(aec_state.Erl(), &erl_); |
| aec3::UpdateDbMetric(aec_state.Erle(), &erle_); |
| aec3::UpdateDbMetric(comfort_noise_spectrum, &comfort_noise_); |
| aec3::UpdateDbMetric(suppressor_gain, &suppressor_gain_); |
| active_render_count_ += (aec_state.ActiveRender() ? 1 : 0); |
| saturated_capture_ = saturated_capture_ || aec_state.SaturatedCapture(); |
| } else { |
| // Report the metrics over several frames in order to lower the impact of |
| // the logarithms involved on the computational complexity. |
| constexpr int kMetricsCollectionBlocksBy2 = kMetricsCollectionBlocks / 2; |
| constexpr float kComfortNoiseScaling = 1.f / (kBlockSize * kBlockSize); |
| switch (block_counter_) { |
| case kMetricsCollectionBlocks + 1: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErleBand0.Average", |
| aec3::TransformDbMetricForReporting(true, 0.f, 19.f, 0.f, |
| kOneByMetricsCollectionBlocks, |
| erle_[0].sum_value), |
| 0, 19, 20); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErleBand0.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 19.f, 0.f, 1.f, |
| erle_[0].ceil_value), |
| 0, 19, 20); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErleBand0.Min", |
| aec3::TransformDbMetricForReporting(true, 0.f, 19.f, 0.f, 1.f, |
| erle_[0].floor_value), |
| 0, 19, 20); |
| break; |
| case kMetricsCollectionBlocks + 2: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErleBand1.Average", |
| aec3::TransformDbMetricForReporting(true, 0.f, 19.f, 0.f, |
| kOneByMetricsCollectionBlocks, |
| erle_[1].sum_value), |
| 0, 19, 20); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErleBand1.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 19.f, 0.f, 1.f, |
| erle_[1].ceil_value), |
| 0, 19, 20); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErleBand1.Min", |
| aec3::TransformDbMetricForReporting(true, 0.f, 19.f, 0.f, 1.f, |
| erle_[1].floor_value), |
| 0, 19, 20); |
| break; |
| case kMetricsCollectionBlocks + 3: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErlBand0.Average", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 30.f, |
| kOneByMetricsCollectionBlocks, |
| erl_[0].sum_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErlBand0.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 30.f, 1.f, |
| erl_[0].ceil_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErlBand0.Min", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 30.f, 1.f, |
| erl_[0].floor_value), |
| 0, 59, 30); |
| break; |
| case kMetricsCollectionBlocks + 4: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErlBand1.Average", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 30.f, |
| kOneByMetricsCollectionBlocks, |
| erl_[1].sum_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErlBand1.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 30.f, 1.f, |
| erl_[1].ceil_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ErlBand1.Min", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 30.f, 1.f, |
| erl_[1].floor_value), |
| 0, 59, 30); |
| break; |
| case kMetricsCollectionBlocks + 5: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ComfortNoiseBand0.Average", |
| aec3::TransformDbMetricForReporting( |
| true, 0.f, 89.f, -90.3f, |
| kComfortNoiseScaling * kOneByMetricsCollectionBlocks, |
| comfort_noise_[0].sum_value), |
| 0, 89, 45); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ComfortNoiseBand0.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 89.f, -90.3f, |
| kComfortNoiseScaling, |
| comfort_noise_[0].ceil_value), |
| 0, 89, 45); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ComfortNoiseBand0.Min", |
| aec3::TransformDbMetricForReporting(true, 0.f, 89.f, -90.3f, |
| kComfortNoiseScaling, |
| comfort_noise_[0].floor_value), |
| 0, 89, 45); |
| break; |
| case kMetricsCollectionBlocks + 6: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ComfortNoiseBand1.Average", |
| aec3::TransformDbMetricForReporting( |
| true, 0.f, 89.f, -90.3f, |
| kComfortNoiseScaling * kOneByMetricsCollectionBlocks, |
| comfort_noise_[1].sum_value), |
| 0, 89, 45); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ComfortNoiseBand1.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 89.f, -90.3f, |
| kComfortNoiseScaling, |
| comfort_noise_[1].ceil_value), |
| 0, 89, 45); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.ComfortNoiseBand1.Min", |
| aec3::TransformDbMetricForReporting(true, 0.f, 89.f, -90.3f, |
| kComfortNoiseScaling, |
| comfort_noise_[1].floor_value), |
| 0, 89, 45); |
| break; |
| case kMetricsCollectionBlocks + 7: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.SuppressorGainBand0.Average", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 0.f, |
| kOneByMetricsCollectionBlocks, |
| suppressor_gain_[0].sum_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.SuppressorGainBand0.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 0.f, 1.f, |
| suppressor_gain_[0].ceil_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.SuppressorGainBand0.Min", |
| aec3::TransformDbMetricForReporting( |
| true, 0.f, 59.f, 0.f, 1.f, suppressor_gain_[0].floor_value), |
| 0, 59, 30); |
| break; |
| case kMetricsCollectionBlocks + 8: |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.SuppressorGainBand1.Average", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 0.f, |
| kOneByMetricsCollectionBlocks, |
| suppressor_gain_[1].sum_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.SuppressorGainBand1.Max", |
| aec3::TransformDbMetricForReporting(true, 0.f, 59.f, 0.f, 1.f, |
| suppressor_gain_[1].ceil_value), |
| 0, 59, 30); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.SuppressorGainBand1.Min", |
| aec3::TransformDbMetricForReporting( |
| true, 0.f, 59.f, 0.f, 1.f, suppressor_gain_[1].floor_value), |
| 0, 59, 30); |
| break; |
| case kMetricsCollectionBlocks + 9: |
| RTC_HISTOGRAM_BOOLEAN( |
| "WebRTC.Audio.EchoCanceller.UsableLinearEstimate", |
| static_cast<int>(aec_state.UsableLinearEstimate() ? 1 : 0)); |
| RTC_HISTOGRAM_BOOLEAN( |
| "WebRTC.Audio.EchoCanceller.ActiveRender", |
| static_cast<int>( |
| active_render_count_ > kMetricsCollectionBlocksBy2 ? 1 : 0)); |
| RTC_HISTOGRAM_COUNTS_LINEAR( |
| "WebRTC.Audio.EchoCanceller.FilterDelay", |
| aec_state.FilterDelay() ? *aec_state.FilterDelay() + 1 : 0, 0, 30, |
| 31); |
| RTC_HISTOGRAM_BOOLEAN("WebRTC.Audio.EchoCanceller.CaptureSaturation", |
| static_cast<int>(saturated_capture_ ? 1 : 0)); |
| metrics_reported_ = true; |
| RTC_DCHECK_EQ(kMetricsReportingIntervalBlocks, block_counter_); |
| block_counter_ = 0; |
| ResetMetrics(); |
| break; |
| default: |
| RTC_NOTREACHED(); |
| break; |
| } |
| } |
| } |
| |
| namespace aec3 { |
| |
| void UpdateDbMetric(const std::array<float, kFftLengthBy2Plus1>& value, |
| std::array<EchoRemoverMetrics::DbMetric, 2>* statistic) { |
| RTC_DCHECK(statistic); |
| // Truncation is intended in the band width computation. |
| constexpr int kNumBands = 2; |
| constexpr int kBandWidth = 65 / kNumBands; |
| constexpr float kOneByBandWidth = 1.f / kBandWidth; |
| RTC_DCHECK_EQ(kNumBands, statistic->size()); |
| RTC_DCHECK_EQ(65, value.size()); |
| for (size_t k = 0; k < statistic->size(); ++k) { |
| float average_band = |
| std::accumulate(value.begin() + kBandWidth * k, |
| value.begin() + kBandWidth * (k + 1), 0.f) * |
| kOneByBandWidth; |
| (*statistic)[k].Update(average_band); |
| } |
| } |
| |
| int TransformDbMetricForReporting(bool negate, |
| float min_value, |
| float max_value, |
| float offset, |
| float scaling, |
| float value) { |
| float new_value = 10.f * log10(value * scaling + 1e-10f) + offset; |
| if (negate) { |
| new_value = -new_value; |
| } |
| return static_cast<int>(rtc::SafeClamp(new_value, min_value, max_value)); |
| } |
| |
| } // namespace aec3 |
| |
| } // namespace webrtc |
