mozilla-central/third_party/libwebrtc/modules/audio_processing/test/echo_canceller3_config_json.cc

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/*
* 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 "modules/audio_processing/test/echo_canceller3_config_json.h"
#include <stddef.h>
#include <memory>
#include <string>
#include <vector>
#include "rtc_base/checks.h"
#include "rtc_base/logging.h"
#include "rtc_base/strings/json.h"
#include "rtc_base/strings/string_builder.h"
namespace webrtc {
namespace {
void ReadParam(const Json::Value& root, std::string param_name, bool* param) {
RTC_DCHECK(param);
bool v;
if (rtc::GetBoolFromJsonObject(root, param_name, &v)) {
*param = v;
}
}
void ReadParam(const Json::Value& root, std::string param_name, size_t* param) {
RTC_DCHECK(param);
int v;
if (rtc::GetIntFromJsonObject(root, param_name, &v) && v >= 0) {
*param = v;
}
}
void ReadParam(const Json::Value& root, std::string param_name, int* param) {
RTC_DCHECK(param);
int v;
if (rtc::GetIntFromJsonObject(root, param_name, &v)) {
*param = v;
}
}
void ReadParam(const Json::Value& root, std::string param_name, float* param) {
RTC_DCHECK(param);
double v;
if (rtc::GetDoubleFromJsonObject(root, param_name, &v)) {
*param = static_cast<float>(v);
}
}
void ReadParam(const Json::Value& root,
std::string param_name,
EchoCanceller3Config::Filter::RefinedConfiguration* param) {
RTC_DCHECK(param);
Json::Value json_array;
if (rtc::GetValueFromJsonObject(root, param_name, &json_array)) {
std::vector<double> v;
rtc::JsonArrayToDoubleVector(json_array, &v);
if (v.size() != 6) {
RTC_LOG(LS_ERROR) << "Incorrect array size for " << param_name;
return;
}
param->length_blocks = static_cast<size_t>(v[0]);
param->leakage_converged = static_cast<float>(v[1]);
param->leakage_diverged = static_cast<float>(v[2]);
param->error_floor = static_cast<float>(v[3]);
param->error_ceil = static_cast<float>(v[4]);
param->noise_gate = static_cast<float>(v[5]);
}
}
void ReadParam(const Json::Value& root,
std::string param_name,
EchoCanceller3Config::Filter::CoarseConfiguration* param) {
RTC_DCHECK(param);
Json::Value json_array;
if (rtc::GetValueFromJsonObject(root, param_name, &json_array)) {
std::vector<double> v;
rtc::JsonArrayToDoubleVector(json_array, &v);
if (v.size() != 3) {
RTC_LOG(LS_ERROR) << "Incorrect array size for " << param_name;
return;
}
param->length_blocks = static_cast<size_t>(v[0]);
param->rate = static_cast<float>(v[1]);
param->noise_gate = static_cast<float>(v[2]);
}
}
void ReadParam(const Json::Value& root,
std::string param_name,
EchoCanceller3Config::Delay::AlignmentMixing* param) {
RTC_DCHECK(param);
Json::Value subsection;
if (rtc::GetValueFromJsonObject(root, param_name, &subsection)) {
ReadParam(subsection, "downmix", &param->downmix);
ReadParam(subsection, "adaptive_selection", &param->adaptive_selection);
ReadParam(subsection, "activity_power_threshold",
&param->activity_power_threshold);
ReadParam(subsection, "prefer_first_two_channels",
&param->prefer_first_two_channels);
}
}
void ReadParam(
const Json::Value& root,
std::string param_name,
EchoCanceller3Config::Suppressor::SubbandNearendDetection::SubbandRegion*
param) {
RTC_DCHECK(param);
Json::Value json_array;
if (rtc::GetValueFromJsonObject(root, param_name, &json_array)) {
std::vector<int> v;
rtc::JsonArrayToIntVector(json_array, &v);
if (v.size() != 2) {
RTC_LOG(LS_ERROR) << "Incorrect array size for " << param_name;
return;
}
param->low = static_cast<size_t>(v[0]);
param->high = static_cast<size_t>(v[1]);
}
}
void ReadParam(const Json::Value& root,
std::string param_name,
EchoCanceller3Config::Suppressor::MaskingThresholds* param) {
RTC_DCHECK(param);
Json::Value json_array;
if (rtc::GetValueFromJsonObject(root, param_name, &json_array)) {
std::vector<double> v;
rtc::JsonArrayToDoubleVector(json_array, &v);
if (v.size() != 3) {
RTC_LOG(LS_ERROR) << "Incorrect array size for " << param_name;
return;
}
param->enr_transparent = static_cast<float>(v[0]);
param->enr_suppress = static_cast<float>(v[1]);
param->emr_transparent = static_cast<float>(v[2]);
}
}
} // namespace
void Aec3ConfigFromJsonString(absl::string_view json_string,
EchoCanceller3Config* config,
bool* parsing_successful) {
RTC_DCHECK(config);
RTC_DCHECK(parsing_successful);
EchoCanceller3Config& cfg = *config;
cfg = EchoCanceller3Config();
*parsing_successful = true;
Json::Value root;
Json::CharReaderBuilder builder;
std::string error_message;
std::unique_ptr<Json::CharReader> reader(builder.newCharReader());
bool success =
reader->parse(json_string.data(), json_string.data() + json_string.size(),
&root, &error_message);
if (!success) {
RTC_LOG(LS_ERROR) << "Incorrect JSON format: " << error_message;
*parsing_successful = false;
return;
}
Json::Value aec3_root;
success = rtc::GetValueFromJsonObject(root, "aec3", &aec3_root);
if (!success) {
RTC_LOG(LS_ERROR) << "Missing AEC3 config field: " << json_string;
*parsing_successful = false;
return;
}
Json::Value section;
if (rtc::GetValueFromJsonObject(aec3_root, "buffering", &section)) {
ReadParam(section, "excess_render_detection_interval_blocks",
&cfg.buffering.excess_render_detection_interval_blocks);
ReadParam(section, "max_allowed_excess_render_blocks",
&cfg.buffering.max_allowed_excess_render_blocks);
}
if (rtc::GetValueFromJsonObject(aec3_root, "delay", &section)) {
ReadParam(section, "default_delay", &cfg.delay.default_delay);
ReadParam(section, "down_sampling_factor", &cfg.delay.down_sampling_factor);
ReadParam(section, "num_filters", &cfg.delay.num_filters);
ReadParam(section, "delay_headroom_samples",
&cfg.delay.delay_headroom_samples);
ReadParam(section, "hysteresis_limit_blocks",
&cfg.delay.hysteresis_limit_blocks);
ReadParam(section, "fixed_capture_delay_samples",
&cfg.delay.fixed_capture_delay_samples);
ReadParam(section, "delay_estimate_smoothing",
&cfg.delay.delay_estimate_smoothing);
ReadParam(section, "delay_estimate_smoothing_delay_found",
&cfg.delay.delay_estimate_smoothing_delay_found);
ReadParam(section, "delay_candidate_detection_threshold",
&cfg.delay.delay_candidate_detection_threshold);
Json::Value subsection;
if (rtc::GetValueFromJsonObject(section, "delay_selection_thresholds",
&subsection)) {
ReadParam(subsection, "initial",
&cfg.delay.delay_selection_thresholds.initial);
ReadParam(subsection, "converged",
&cfg.delay.delay_selection_thresholds.converged);
}
ReadParam(section, "use_external_delay_estimator",
&cfg.delay.use_external_delay_estimator);
ReadParam(section, "log_warning_on_delay_changes",
&cfg.delay.log_warning_on_delay_changes);
ReadParam(section, "render_alignment_mixing",
&cfg.delay.render_alignment_mixing);
ReadParam(section, "capture_alignment_mixing",
&cfg.delay.capture_alignment_mixing);
ReadParam(section, "detect_pre_echo", &cfg.delay.detect_pre_echo);
}
if (rtc::GetValueFromJsonObject(aec3_root, "filter", &section)) {
ReadParam(section, "refined", &cfg.filter.refined);
ReadParam(section, "coarse", &cfg.filter.coarse);
ReadParam(section, "refined_initial", &cfg.filter.refined_initial);
ReadParam(section, "coarse_initial", &cfg.filter.coarse_initial);
ReadParam(section, "config_change_duration_blocks",
&cfg.filter.config_change_duration_blocks);
ReadParam(section, "initial_state_seconds",
&cfg.filter.initial_state_seconds);
ReadParam(section, "coarse_reset_hangover_blocks",
&cfg.filter.coarse_reset_hangover_blocks);
ReadParam(section, "conservative_initial_phase",
&cfg.filter.conservative_initial_phase);
ReadParam(section, "enable_coarse_filter_output_usage",
&cfg.filter.enable_coarse_filter_output_usage);
ReadParam(section, "use_linear_filter", &cfg.filter.use_linear_filter);
ReadParam(section, "high_pass_filter_echo_reference",
&cfg.filter.high_pass_filter_echo_reference);
ReadParam(section, "export_linear_aec_output",
&cfg.filter.export_linear_aec_output);
}
if (rtc::GetValueFromJsonObject(aec3_root, "erle", &section)) {
ReadParam(section, "min", &cfg.erle.min);
ReadParam(section, "max_l", &cfg.erle.max_l);
ReadParam(section, "max_h", &cfg.erle.max_h);
ReadParam(section, "onset_detection", &cfg.erle.onset_detection);
ReadParam(section, "num_sections", &cfg.erle.num_sections);
ReadParam(section, "clamp_quality_estimate_to_zero",
&cfg.erle.clamp_quality_estimate_to_zero);
ReadParam(section, "clamp_quality_estimate_to_one",
&cfg.erle.clamp_quality_estimate_to_one);
}
if (rtc::GetValueFromJsonObject(aec3_root, "ep_strength", &section)) {
ReadParam(section, "default_gain", &cfg.ep_strength.default_gain);
ReadParam(section, "default_len", &cfg.ep_strength.default_len);
ReadParam(section, "nearend_len", &cfg.ep_strength.nearend_len);
ReadParam(section, "echo_can_saturate", &cfg.ep_strength.echo_can_saturate);
ReadParam(section, "bounded_erl", &cfg.ep_strength.bounded_erl);
ReadParam(section, "erle_onset_compensation_in_dominant_nearend",
&cfg.ep_strength.erle_onset_compensation_in_dominant_nearend);
ReadParam(section, "use_conservative_tail_frequency_response",
&cfg.ep_strength.use_conservative_tail_frequency_response);
}
if (rtc::GetValueFromJsonObject(aec3_root, "echo_audibility", &section)) {
ReadParam(section, "low_render_limit",
&cfg.echo_audibility.low_render_limit);
ReadParam(section, "normal_render_limit",
&cfg.echo_audibility.normal_render_limit);
ReadParam(section, "floor_power", &cfg.echo_audibility.floor_power);
ReadParam(section, "audibility_threshold_lf",
&cfg.echo_audibility.audibility_threshold_lf);
ReadParam(section, "audibility_threshold_mf",
&cfg.echo_audibility.audibility_threshold_mf);
ReadParam(section, "audibility_threshold_hf",
&cfg.echo_audibility.audibility_threshold_hf);
ReadParam(section, "use_stationarity_properties",
&cfg.echo_audibility.use_stationarity_properties);
ReadParam(section, "use_stationarity_properties_at_init",
&cfg.echo_audibility.use_stationarity_properties_at_init);
}
if (rtc::GetValueFromJsonObject(aec3_root, "render_levels", &section)) {
ReadParam(section, "active_render_limit",
&cfg.render_levels.active_render_limit);
ReadParam(section, "poor_excitation_render_limit",
&cfg.render_levels.poor_excitation_render_limit);
ReadParam(section, "poor_excitation_render_limit_ds8",
&cfg.render_levels.poor_excitation_render_limit_ds8);
ReadParam(section, "render_power_gain_db",
&cfg.render_levels.render_power_gain_db);
}
if (rtc::GetValueFromJsonObject(aec3_root, "echo_removal_control",
&section)) {
ReadParam(section, "has_clock_drift",
&cfg.echo_removal_control.has_clock_drift);
ReadParam(section, "linear_and_stable_echo_path",
&cfg.echo_removal_control.linear_and_stable_echo_path);
}
if (rtc::GetValueFromJsonObject(aec3_root, "echo_model", &section)) {
Json::Value subsection;
ReadParam(section, "noise_floor_hold", &cfg.echo_model.noise_floor_hold);
ReadParam(section, "min_noise_floor_power",
&cfg.echo_model.min_noise_floor_power);
ReadParam(section, "stationary_gate_slope",
&cfg.echo_model.stationary_gate_slope);
ReadParam(section, "noise_gate_power", &cfg.echo_model.noise_gate_power);
ReadParam(section, "noise_gate_slope", &cfg.echo_model.noise_gate_slope);
ReadParam(section, "render_pre_window_size",
&cfg.echo_model.render_pre_window_size);
ReadParam(section, "render_post_window_size",
&cfg.echo_model.render_post_window_size);
ReadParam(section, "model_reverb_in_nonlinear_mode",
&cfg.echo_model.model_reverb_in_nonlinear_mode);
}
if (rtc::GetValueFromJsonObject(aec3_root, "comfort_noise", &section)) {
ReadParam(section, "noise_floor_dbfs", &cfg.comfort_noise.noise_floor_dbfs);
}
Json::Value subsection;
if (rtc::GetValueFromJsonObject(aec3_root, "suppressor", &section)) {
ReadParam(section, "nearend_average_blocks",
&cfg.suppressor.nearend_average_blocks);
if (rtc::GetValueFromJsonObject(section, "normal_tuning", &subsection)) {
ReadParam(subsection, "mask_lf", &cfg.suppressor.normal_tuning.mask_lf);
ReadParam(subsection, "mask_hf", &cfg.suppressor.normal_tuning.mask_hf);
ReadParam(subsection, "max_inc_factor",
&cfg.suppressor.normal_tuning.max_inc_factor);
ReadParam(subsection, "max_dec_factor_lf",
&cfg.suppressor.normal_tuning.max_dec_factor_lf);
}
if (rtc::GetValueFromJsonObject(section, "nearend_tuning", &subsection)) {
ReadParam(subsection, "mask_lf", &cfg.suppressor.nearend_tuning.mask_lf);
ReadParam(subsection, "mask_hf", &cfg.suppressor.nearend_tuning.mask_hf);
ReadParam(subsection, "max_inc_factor",
&cfg.suppressor.nearend_tuning.max_inc_factor);
ReadParam(subsection, "max_dec_factor_lf",
&cfg.suppressor.nearend_tuning.max_dec_factor_lf);
}
ReadParam(section, "lf_smoothing_during_initial_phase",
&cfg.suppressor.lf_smoothing_during_initial_phase);
ReadParam(section, "last_permanent_lf_smoothing_band",
&cfg.suppressor.last_permanent_lf_smoothing_band);
ReadParam(section, "last_lf_smoothing_band",
&cfg.suppressor.last_lf_smoothing_band);
ReadParam(section, "last_lf_band", &cfg.suppressor.last_lf_band);
ReadParam(section, "first_hf_band", &cfg.suppressor.first_hf_band);
if (rtc::GetValueFromJsonObject(section, "dominant_nearend_detection",
&subsection)) {
ReadParam(subsection, "enr_threshold",
&cfg.suppressor.dominant_nearend_detection.enr_threshold);
ReadParam(subsection, "enr_exit_threshold",
&cfg.suppressor.dominant_nearend_detection.enr_exit_threshold);
ReadParam(subsection, "snr_threshold",
&cfg.suppressor.dominant_nearend_detection.snr_threshold);
ReadParam(subsection, "hold_duration",
&cfg.suppressor.dominant_nearend_detection.hold_duration);
ReadParam(subsection, "trigger_threshold",
&cfg.suppressor.dominant_nearend_detection.trigger_threshold);
ReadParam(
subsection, "use_during_initial_phase",
&cfg.suppressor.dominant_nearend_detection.use_during_initial_phase);
ReadParam(subsection, "use_unbounded_echo_spectrum",
&cfg.suppressor.dominant_nearend_detection
.use_unbounded_echo_spectrum);
}
if (rtc::GetValueFromJsonObject(section, "subband_nearend_detection",
&subsection)) {
ReadParam(
subsection, "nearend_average_blocks",
&cfg.suppressor.subband_nearend_detection.nearend_average_blocks);
ReadParam(subsection, "subband1",
&cfg.suppressor.subband_nearend_detection.subband1);
ReadParam(subsection, "subband2",
&cfg.suppressor.subband_nearend_detection.subband2);
ReadParam(subsection, "nearend_threshold",
&cfg.suppressor.subband_nearend_detection.nearend_threshold);
ReadParam(subsection, "snr_threshold",
&cfg.suppressor.subband_nearend_detection.snr_threshold);
}
ReadParam(section, "use_subband_nearend_detection",
&cfg.suppressor.use_subband_nearend_detection);
if (rtc::GetValueFromJsonObject(section, "high_bands_suppression",
&subsection)) {
ReadParam(subsection, "enr_threshold",
&cfg.suppressor.high_bands_suppression.enr_threshold);
ReadParam(subsection, "max_gain_during_echo",
&cfg.suppressor.high_bands_suppression.max_gain_during_echo);
ReadParam(subsection, "anti_howling_activation_threshold",
&cfg.suppressor.high_bands_suppression
.anti_howling_activation_threshold);
ReadParam(subsection, "anti_howling_gain",
&cfg.suppressor.high_bands_suppression.anti_howling_gain);
}
ReadParam(section, "floor_first_increase",
&cfg.suppressor.floor_first_increase);
ReadParam(section, "conservative_hf_suppression",
&cfg.suppressor.conservative_hf_suppression);
}
if (rtc::GetValueFromJsonObject(aec3_root, "multi_channel", &section)) {
ReadParam(section, "detect_stereo_content",
&cfg.multi_channel.detect_stereo_content);
ReadParam(section, "stereo_detection_threshold",
&cfg.multi_channel.stereo_detection_threshold);
ReadParam(section, "stereo_detection_timeout_threshold_seconds",
&cfg.multi_channel.stereo_detection_timeout_threshold_seconds);
ReadParam(section, "stereo_detection_hysteresis_seconds",
&cfg.multi_channel.stereo_detection_hysteresis_seconds);
}
}
std::string Aec3ConfigToJsonString(const EchoCanceller3Config& config) {
rtc::StringBuilder ost;
ost << "{";
ost << "\"aec3\": {";
ost << "\"buffering\": {";
ost << "\"excess_render_detection_interval_blocks\": "
<< config.buffering.excess_render_detection_interval_blocks << ",";
ost << "\"max_allowed_excess_render_blocks\": "
<< config.buffering.max_allowed_excess_render_blocks;
ost << "},";
ost << "\"delay\": {";
ost << "\"default_delay\": " << config.delay.default_delay << ",";
ost << "\"down_sampling_factor\": " << config.delay.down_sampling_factor
<< ",";
ost << "\"num_filters\": " << config.delay.num_filters << ",";
ost << "\"delay_headroom_samples\": " << config.delay.delay_headroom_samples
<< ",";
ost << "\"hysteresis_limit_blocks\": " << config.delay.hysteresis_limit_blocks
<< ",";
ost << "\"fixed_capture_delay_samples\": "
<< config.delay.fixed_capture_delay_samples << ",";
ost << "\"delay_estimate_smoothing\": "
<< config.delay.delay_estimate_smoothing << ",";
ost << "\"delay_estimate_smoothing_delay_found\": "
<< config.delay.delay_estimate_smoothing_delay_found << ",";
ost << "\"delay_candidate_detection_threshold\": "
<< config.delay.delay_candidate_detection_threshold << ",";
ost << "\"delay_selection_thresholds\": {";
ost << "\"initial\": " << config.delay.delay_selection_thresholds.initial
<< ",";
ost << "\"converged\": " << config.delay.delay_selection_thresholds.converged;
ost << "},";
ost << "\"use_external_delay_estimator\": "
<< (config.delay.use_external_delay_estimator ? "true" : "false") << ",";
ost << "\"log_warning_on_delay_changes\": "
<< (config.delay.log_warning_on_delay_changes ? "true" : "false") << ",";
ost << "\"render_alignment_mixing\": {";
ost << "\"downmix\": "
<< (config.delay.render_alignment_mixing.downmix ? "true" : "false")
<< ",";
ost << "\"adaptive_selection\": "
<< (config.delay.render_alignment_mixing.adaptive_selection ? "true"
: "false")
<< ",";
ost << "\"activity_power_threshold\": "
<< config.delay.render_alignment_mixing.activity_power_threshold << ",";
ost << "\"prefer_first_two_channels\": "
<< (config.delay.render_alignment_mixing.prefer_first_two_channels
? "true"
: "false");
ost << "},";
ost << "\"capture_alignment_mixing\": {";
ost << "\"downmix\": "
<< (config.delay.capture_alignment_mixing.downmix ? "true" : "false")
<< ",";
ost << "\"adaptive_selection\": "
<< (config.delay.capture_alignment_mixing.adaptive_selection ? "true"
: "false")
<< ",";
ost << "\"activity_power_threshold\": "
<< config.delay.capture_alignment_mixing.activity_power_threshold << ",";
ost << "\"prefer_first_two_channels\": "
<< (config.delay.capture_alignment_mixing.prefer_first_two_channels
? "true"
: "false");
ost << "},";
ost << "\"detect_pre_echo\": "
<< (config.delay.detect_pre_echo ? "true" : "false");
ost << "},";
ost << "\"filter\": {";
ost << "\"refined\": [";
ost << config.filter.refined.length_blocks << ",";
ost << config.filter.refined.leakage_converged << ",";
ost << config.filter.refined.leakage_diverged << ",";
ost << config.filter.refined.error_floor << ",";
ost << config.filter.refined.error_ceil << ",";
ost << config.filter.refined.noise_gate;
ost << "],";
ost << "\"coarse\": [";
ost << config.filter.coarse.length_blocks << ",";
ost << config.filter.coarse.rate << ",";
ost << config.filter.coarse.noise_gate;
ost << "],";
ost << "\"refined_initial\": [";
ost << config.filter.refined_initial.length_blocks << ",";
ost << config.filter.refined_initial.leakage_converged << ",";
ost << config.filter.refined_initial.leakage_diverged << ",";
ost << config.filter.refined_initial.error_floor << ",";
ost << config.filter.refined_initial.error_ceil << ",";
ost << config.filter.refined_initial.noise_gate;
ost << "],";
ost << "\"coarse_initial\": [";
ost << config.filter.coarse_initial.length_blocks << ",";
ost << config.filter.coarse_initial.rate << ",";
ost << config.filter.coarse_initial.noise_gate;
ost << "],";
ost << "\"config_change_duration_blocks\": "
<< config.filter.config_change_duration_blocks << ",";
ost << "\"initial_state_seconds\": " << config.filter.initial_state_seconds
<< ",";
ost << "\"coarse_reset_hangover_blocks\": "
<< config.filter.coarse_reset_hangover_blocks << ",";
ost << "\"conservative_initial_phase\": "
<< (config.filter.conservative_initial_phase ? "true" : "false") << ",";
ost << "\"enable_coarse_filter_output_usage\": "
<< (config.filter.enable_coarse_filter_output_usage ? "true" : "false")
<< ",";
ost << "\"use_linear_filter\": "
<< (config.filter.use_linear_filter ? "true" : "false") << ",";
ost << "\"high_pass_filter_echo_reference\": "
<< (config.filter.high_pass_filter_echo_reference ? "true" : "false")
<< ",";
ost << "\"export_linear_aec_output\": "
<< (config.filter.export_linear_aec_output ? "true" : "false");
ost << "},";
ost << "\"erle\": {";
ost << "\"min\": " << config.erle.min << ",";
ost << "\"max_l\": " << config.erle.max_l << ",";
ost << "\"max_h\": " << config.erle.max_h << ",";
ost << "\"onset_detection\": "
<< (config.erle.onset_detection ? "true" : "false") << ",";
ost << "\"num_sections\": " << config.erle.num_sections << ",";
ost << "\"clamp_quality_estimate_to_zero\": "
<< (config.erle.clamp_quality_estimate_to_zero ? "true" : "false") << ",";
ost << "\"clamp_quality_estimate_to_one\": "
<< (config.erle.clamp_quality_estimate_to_one ? "true" : "false");
ost << "},";
ost << "\"ep_strength\": {";
ost << "\"default_gain\": " << config.ep_strength.default_gain << ",";
ost << "\"default_len\": " << config.ep_strength.default_len << ",";
ost << "\"nearend_len\": " << config.ep_strength.nearend_len << ",";
ost << "\"echo_can_saturate\": "
<< (config.ep_strength.echo_can_saturate ? "true" : "false") << ",";
ost << "\"bounded_erl\": "
<< (config.ep_strength.bounded_erl ? "true" : "false") << ",";
ost << "\"erle_onset_compensation_in_dominant_nearend\": "
<< (config.ep_strength.erle_onset_compensation_in_dominant_nearend
? "true"
: "false")
<< ",";
ost << "\"use_conservative_tail_frequency_response\": "
<< (config.ep_strength.use_conservative_tail_frequency_response
? "true"
: "false");
ost << "},";
ost << "\"echo_audibility\": {";
ost << "\"low_render_limit\": " << config.echo_audibility.low_render_limit
<< ",";
ost << "\"normal_render_limit\": "
<< config.echo_audibility.normal_render_limit << ",";
ost << "\"floor_power\": " << config.echo_audibility.floor_power << ",";
ost << "\"audibility_threshold_lf\": "
<< config.echo_audibility.audibility_threshold_lf << ",";
ost << "\"audibility_threshold_mf\": "
<< config.echo_audibility.audibility_threshold_mf << ",";
ost << "\"audibility_threshold_hf\": "
<< config.echo_audibility.audibility_threshold_hf << ",";
ost << "\"use_stationarity_properties\": "
<< (config.echo_audibility.use_stationarity_properties ? "true" : "false")
<< ",";
ost << "\"use_stationarity_properties_at_init\": "
<< (config.echo_audibility.use_stationarity_properties_at_init ? "true"
: "false");
ost << "},";
ost << "\"render_levels\": {";
ost << "\"active_render_limit\": " << config.render_levels.active_render_limit
<< ",";
ost << "\"poor_excitation_render_limit\": "
<< config.render_levels.poor_excitation_render_limit << ",";
ost << "\"poor_excitation_render_limit_ds8\": "
<< config.render_levels.poor_excitation_render_limit_ds8 << ",";
ost << "\"render_power_gain_db\": "
<< config.render_levels.render_power_gain_db;
ost << "},";
ost << "\"echo_removal_control\": {";
ost << "\"has_clock_drift\": "
<< (config.echo_removal_control.has_clock_drift ? "true" : "false")
<< ",";
ost << "\"linear_and_stable_echo_path\": "
<< (config.echo_removal_control.linear_and_stable_echo_path ? "true"
: "false");
ost << "},";
ost << "\"echo_model\": {";
ost << "\"noise_floor_hold\": " << config.echo_model.noise_floor_hold << ",";
ost << "\"min_noise_floor_power\": "
<< config.echo_model.min_noise_floor_power << ",";
ost << "\"stationary_gate_slope\": "
<< config.echo_model.stationary_gate_slope << ",";
ost << "\"noise_gate_power\": " << config.echo_model.noise_gate_power << ",";
ost << "\"noise_gate_slope\": " << config.echo_model.noise_gate_slope << ",";
ost << "\"render_pre_window_size\": "
<< config.echo_model.render_pre_window_size << ",";
ost << "\"render_post_window_size\": "
<< config.echo_model.render_post_window_size << ",";
ost << "\"model_reverb_in_nonlinear_mode\": "
<< (config.echo_model.model_reverb_in_nonlinear_mode ? "true" : "false");
ost << "},";
ost << "\"comfort_noise\": {";
ost << "\"noise_floor_dbfs\": " << config.comfort_noise.noise_floor_dbfs;
ost << "},";
ost << "\"suppressor\": {";
ost << "\"nearend_average_blocks\": "
<< config.suppressor.nearend_average_blocks << ",";
ost << "\"normal_tuning\": {";
ost << "\"mask_lf\": [";
ost << config.suppressor.normal_tuning.mask_lf.enr_transparent << ",";
ost << config.suppressor.normal_tuning.mask_lf.enr_suppress << ",";
ost << config.suppressor.normal_tuning.mask_lf.emr_transparent;
ost << "],";
ost << "\"mask_hf\": [";
ost << config.suppressor.normal_tuning.mask_hf.enr_transparent << ",";
ost << config.suppressor.normal_tuning.mask_hf.enr_suppress << ",";
ost << config.suppressor.normal_tuning.mask_hf.emr_transparent;
ost << "],";
ost << "\"max_inc_factor\": "
<< config.suppressor.normal_tuning.max_inc_factor << ",";
ost << "\"max_dec_factor_lf\": "
<< config.suppressor.normal_tuning.max_dec_factor_lf;
ost << "},";
ost << "\"nearend_tuning\": {";
ost << "\"mask_lf\": [";
ost << config.suppressor.nearend_tuning.mask_lf.enr_transparent << ",";
ost << config.suppressor.nearend_tuning.mask_lf.enr_suppress << ",";
ost << config.suppressor.nearend_tuning.mask_lf.emr_transparent;
ost << "],";
ost << "\"mask_hf\": [";
ost << config.suppressor.nearend_tuning.mask_hf.enr_transparent << ",";
ost << config.suppressor.nearend_tuning.mask_hf.enr_suppress << ",";
ost << config.suppressor.nearend_tuning.mask_hf.emr_transparent;
ost << "],";
ost << "\"max_inc_factor\": "
<< config.suppressor.nearend_tuning.max_inc_factor << ",";
ost << "\"max_dec_factor_lf\": "
<< config.suppressor.nearend_tuning.max_dec_factor_lf;
ost << "},";
ost << "\"lf_smoothing_during_initial_phase\": "
<< (config.suppressor.lf_smoothing_during_initial_phase ? "true"
: "false")
<< ",";
ost << "\"last_permanent_lf_smoothing_band\": "
<< config.suppressor.last_permanent_lf_smoothing_band << ",";
ost << "\"last_lf_smoothing_band\": "
<< config.suppressor.last_lf_smoothing_band << ",";
ost << "\"last_lf_band\": " << config.suppressor.last_lf_band << ",";
ost << "\"first_hf_band\": " << config.suppressor.first_hf_band << ",";
{
const auto& dnd = config.suppressor.dominant_nearend_detection;
ost << "\"dominant_nearend_detection\": {";
ost << "\"enr_threshold\": " << dnd.enr_threshold << ",";
ost << "\"enr_exit_threshold\": " << dnd.enr_exit_threshold << ",";
ost << "\"snr_threshold\": " << dnd.snr_threshold << ",";
ost << "\"hold_duration\": " << dnd.hold_duration << ",";
ost << "\"trigger_threshold\": " << dnd.trigger_threshold << ",";
ost << "\"use_during_initial_phase\": " << dnd.use_during_initial_phase
<< ",";
ost << "\"use_unbounded_echo_spectrum\": "
<< dnd.use_unbounded_echo_spectrum;
ost << "},";
}
ost << "\"subband_nearend_detection\": {";
ost << "\"nearend_average_blocks\": "
<< config.suppressor.subband_nearend_detection.nearend_average_blocks
<< ",";
ost << "\"subband1\": [";
ost << config.suppressor.subband_nearend_detection.subband1.low << ",";
ost << config.suppressor.subband_nearend_detection.subband1.high;
ost << "],";
ost << "\"subband2\": [";
ost << config.suppressor.subband_nearend_detection.subband2.low << ",";
ost << config.suppressor.subband_nearend_detection.subband2.high;
ost << "],";
ost << "\"nearend_threshold\": "
<< config.suppressor.subband_nearend_detection.nearend_threshold << ",";
ost << "\"snr_threshold\": "
<< config.suppressor.subband_nearend_detection.snr_threshold;
ost << "},";
ost << "\"use_subband_nearend_detection\": "
<< config.suppressor.use_subband_nearend_detection << ",";
ost << "\"high_bands_suppression\": {";
ost << "\"enr_threshold\": "
<< config.suppressor.high_bands_suppression.enr_threshold << ",";
ost << "\"max_gain_during_echo\": "
<< config.suppressor.high_bands_suppression.max_gain_during_echo << ",";
ost << "\"anti_howling_activation_threshold\": "
<< config.suppressor.high_bands_suppression
.anti_howling_activation_threshold
<< ",";
ost << "\"anti_howling_gain\": "
<< config.suppressor.high_bands_suppression.anti_howling_gain;
ost << "},";
ost << "\"floor_first_increase\": " << config.suppressor.floor_first_increase
<< ",";
ost << "\"conservative_hf_suppression\": "
<< config.suppressor.conservative_hf_suppression;
ost << "},";
ost << "\"multi_channel\": {";
ost << "\"detect_stereo_content\": "
<< (config.multi_channel.detect_stereo_content ? "true" : "false") << ",";
ost << "\"stereo_detection_threshold\": "
<< config.multi_channel.stereo_detection_threshold << ",";
ost << "\"stereo_detection_timeout_threshold_seconds\": "
<< config.multi_channel.stereo_detection_timeout_threshold_seconds << ",";
ost << "\"stereo_detection_hysteresis_seconds\": "
<< config.multi_channel.stereo_detection_hysteresis_seconds;
ost << "}";
ost << "}";
ost << "}";
return ost.Release();
}
} // namespace webrtc