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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 "api/audio/echo_canceller3_config.h"
#include <algorithm>
#include <cmath>
#include "rtc_base/checks.h"
#include "rtc_base/numerics/safe_minmax.h"
namespace webrtc {
namespace {
bool Limit(float* value, float min, float max) {
float clamped = rtc::SafeClamp(*value, min, max);
clamped = std::isfinite(clamped) ? clamped : min;
bool res = *value == clamped;
*value = clamped;
return res;
}
bool Limit(size_t* value, size_t min, size_t max) {
size_t clamped = rtc::SafeClamp(*value, min, max);
bool res = *value == clamped;
*value = clamped;
return res;
}
bool Limit(int* value, int min, int max) {
int clamped = rtc::SafeClamp(*value, min, max);
bool res = *value == clamped;
*value = clamped;
return res;
}
bool FloorLimit(size_t* value, size_t min) {
size_t clamped = *value >= min ? *value : min;
bool res = *value == clamped;
*value = clamped;
return res;
}
} // namespace
EchoCanceller3Config::EchoCanceller3Config() = default;
EchoCanceller3Config::EchoCanceller3Config(const EchoCanceller3Config& e) =
default;
EchoCanceller3Config& EchoCanceller3Config::operator=(
const EchoCanceller3Config& e) = default;
EchoCanceller3Config::Delay::Delay() = default;
EchoCanceller3Config::Delay::Delay(const EchoCanceller3Config::Delay& e) =
default;
EchoCanceller3Config::Delay& EchoCanceller3Config::Delay::operator=(
const Delay& e) = default;
EchoCanceller3Config::EchoModel::EchoModel() = default;
EchoCanceller3Config::EchoModel::EchoModel(
const EchoCanceller3Config::EchoModel& e) = default;
EchoCanceller3Config::EchoModel& EchoCanceller3Config::EchoModel::operator=(
const EchoModel& e) = default;
EchoCanceller3Config::Suppressor::Suppressor() = default;
EchoCanceller3Config::Suppressor::Suppressor(
const EchoCanceller3Config::Suppressor& e) = default;
EchoCanceller3Config::Suppressor& EchoCanceller3Config::Suppressor::operator=(
const Suppressor& e) = default;
EchoCanceller3Config::Suppressor::MaskingThresholds::MaskingThresholds(
float enr_transparent,
float enr_suppress,
float emr_transparent)
: enr_transparent(enr_transparent),
enr_suppress(enr_suppress),
emr_transparent(emr_transparent) {}
EchoCanceller3Config::Suppressor::MaskingThresholds::MaskingThresholds(
const EchoCanceller3Config::Suppressor::MaskingThresholds& e) = default;
EchoCanceller3Config::Suppressor::MaskingThresholds&
EchoCanceller3Config::Suppressor::MaskingThresholds::operator=(
const MaskingThresholds& e) = default;
EchoCanceller3Config::Suppressor::Tuning::Tuning(MaskingThresholds mask_lf,
MaskingThresholds mask_hf,
float max_inc_factor,
float max_dec_factor_lf)
: mask_lf(mask_lf),
mask_hf(mask_hf),
max_inc_factor(max_inc_factor),
max_dec_factor_lf(max_dec_factor_lf) {}
EchoCanceller3Config::Suppressor::Tuning::Tuning(
const EchoCanceller3Config::Suppressor::Tuning& e) = default;
EchoCanceller3Config::Suppressor::Tuning&
EchoCanceller3Config::Suppressor::Tuning::operator=(const Tuning& e) = default;
bool EchoCanceller3Config::Validate(EchoCanceller3Config* config) {
RTC_DCHECK(config);
EchoCanceller3Config* c = config;
bool res = true;
if (c->delay.down_sampling_factor != 4 &&
c->delay.down_sampling_factor != 8) {
c->delay.down_sampling_factor = 4;
res = false;
}
res = res & Limit(&c->delay.default_delay, 0, 5000);
res = res & Limit(&c->delay.num_filters, 0, 5000);
res = res & Limit(&c->delay.delay_headroom_samples, 0, 5000);
res = res & Limit(&c->delay.hysteresis_limit_blocks, 0, 5000);
res = res & Limit(&c->delay.fixed_capture_delay_samples, 0, 5000);
res = res & Limit(&c->delay.delay_estimate_smoothing, 0.f, 1.f);
res = res & Limit(&c->delay.delay_candidate_detection_threshold, 0.f, 1.f);
res = res & Limit(&c->delay.delay_selection_thresholds.initial, 1, 250);
res = res & Limit(&c->delay.delay_selection_thresholds.converged, 1, 250);
res = res & FloorLimit(&c->filter.refined.length_blocks, 1);
res = res & Limit(&c->filter.refined.leakage_converged, 0.f, 1000.f);
res = res & Limit(&c->filter.refined.leakage_diverged, 0.f, 1000.f);
res = res & Limit(&c->filter.refined.error_floor, 0.f, 1000.f);
res = res & Limit(&c->filter.refined.error_ceil, 0.f, 100000000.f);
res = res & Limit(&c->filter.refined.noise_gate, 0.f, 100000000.f);
res = res & FloorLimit(&c->filter.refined_initial.length_blocks, 1);
res = res & Limit(&c->filter.refined_initial.leakage_converged, 0.f, 1000.f);
res = res & Limit(&c->filter.refined_initial.leakage_diverged, 0.f, 1000.f);
res = res & Limit(&c->filter.refined_initial.error_floor, 0.f, 1000.f);
res = res & Limit(&c->filter.refined_initial.error_ceil, 0.f, 100000000.f);
res = res & Limit(&c->filter.refined_initial.noise_gate, 0.f, 100000000.f);
if (c->filter.refined.length_blocks <
c->filter.refined_initial.length_blocks) {
c->filter.refined_initial.length_blocks = c->filter.refined.length_blocks;
res = false;
}
res = res & FloorLimit(&c->filter.coarse.length_blocks, 1);
res = res & Limit(&c->filter.coarse.rate, 0.f, 1.f);
res = res & Limit(&c->filter.coarse.noise_gate, 0.f, 100000000.f);
res = res & FloorLimit(&c->filter.coarse_initial.length_blocks, 1);
res = res & Limit(&c->filter.coarse_initial.rate, 0.f, 1.f);
res = res & Limit(&c->filter.coarse_initial.noise_gate, 0.f, 100000000.f);
if (c->filter.coarse.length_blocks < c->filter.coarse_initial.length_blocks) {
c->filter.coarse_initial.length_blocks = c->filter.coarse.length_blocks;
res = false;
}
res = res & Limit(&c->filter.config_change_duration_blocks, 0, 100000);
res = res & Limit(&c->filter.initial_state_seconds, 0.f, 100.f);
res = res & Limit(&c->filter.coarse_reset_hangover_blocks, 0, 250000);
res = res & Limit(&c->erle.min, 1.f, 100000.f);
res = res & Limit(&c->erle.max_l, 1.f, 100000.f);
res = res & Limit(&c->erle.max_h, 1.f, 100000.f);
if (c->erle.min > c->erle.max_l || c->erle.min > c->erle.max_h) {
c->erle.min = std::min(c->erle.max_l, c->erle.max_h);
res = false;
}
res = res & Limit(&c->erle.num_sections, 1, c->filter.refined.length_blocks);
res = res & Limit(&c->ep_strength.default_gain, 0.f, 1000000.f);
res = res & Limit(&c->ep_strength.default_len, -1.f, 1.f);
res = res & Limit(&c->ep_strength.nearend_len, -1.0f, 1.0f);
res =
res & Limit(&c->echo_audibility.low_render_limit, 0.f, 32768.f * 32768.f);
res = res &
Limit(&c->echo_audibility.normal_render_limit, 0.f, 32768.f * 32768.f);
res = res & Limit(&c->echo_audibility.floor_power, 0.f, 32768.f * 32768.f);
res = res & Limit(&c->echo_audibility.audibility_threshold_lf, 0.f,
32768.f * 32768.f);
res = res & Limit(&c->echo_audibility.audibility_threshold_mf, 0.f,
32768.f * 32768.f);
res = res & Limit(&c->echo_audibility.audibility_threshold_hf, 0.f,
32768.f * 32768.f);
res = res &
Limit(&c->render_levels.active_render_limit, 0.f, 32768.f * 32768.f);
res = res & Limit(&c->render_levels.poor_excitation_render_limit, 0.f,
32768.f * 32768.f);
res = res & Limit(&c->render_levels.poor_excitation_render_limit_ds8, 0.f,
32768.f * 32768.f);
res = res & Limit(&c->echo_model.noise_floor_hold, 0, 1000);
res = res & Limit(&c->echo_model.min_noise_floor_power, 0, 2000000.f);
res = res & Limit(&c->echo_model.stationary_gate_slope, 0, 1000000.f);
res = res & Limit(&c->echo_model.noise_gate_power, 0, 1000000.f);
res = res & Limit(&c->echo_model.noise_gate_slope, 0, 1000000.f);
res = res & Limit(&c->echo_model.render_pre_window_size, 0, 100);
res = res & Limit(&c->echo_model.render_post_window_size, 0, 100);
res = res & Limit(&c->comfort_noise.noise_floor_dbfs, -200.f, 0.f);
res = res & Limit(&c->suppressor.nearend_average_blocks, 1, 5000);
res = res &
Limit(&c->suppressor.normal_tuning.mask_lf.enr_transparent, 0.f, 100.f);
res = res &
Limit(&c->suppressor.normal_tuning.mask_lf.enr_suppress, 0.f, 100.f);
res = res &
Limit(&c->suppressor.normal_tuning.mask_lf.emr_transparent, 0.f, 100.f);
res = res &
Limit(&c->suppressor.normal_tuning.mask_hf.enr_transparent, 0.f, 100.f);
res = res &
Limit(&c->suppressor.normal_tuning.mask_hf.enr_suppress, 0.f, 100.f);
res = res &
Limit(&c->suppressor.normal_tuning.mask_hf.emr_transparent, 0.f, 100.f);
res = res & Limit(&c->suppressor.normal_tuning.max_inc_factor, 0.f, 100.f);
res = res & Limit(&c->suppressor.normal_tuning.max_dec_factor_lf, 0.f, 100.f);
res = res & Limit(&c->suppressor.nearend_tuning.mask_lf.enr_transparent, 0.f,
100.f);
res = res &
Limit(&c->suppressor.nearend_tuning.mask_lf.enr_suppress, 0.f, 100.f);
res = res & Limit(&c->suppressor.nearend_tuning.mask_lf.emr_transparent, 0.f,
100.f);
res = res & Limit(&c->suppressor.nearend_tuning.mask_hf.enr_transparent, 0.f,
100.f);
res = res &
Limit(&c->suppressor.nearend_tuning.mask_hf.enr_suppress, 0.f, 100.f);
res = res & Limit(&c->suppressor.nearend_tuning.mask_hf.emr_transparent, 0.f,
100.f);
res = res & Limit(&c->suppressor.nearend_tuning.max_inc_factor, 0.f, 100.f);
res =
res & Limit(&c->suppressor.nearend_tuning.max_dec_factor_lf, 0.f, 100.f);
res = res & Limit(&c->suppressor.last_permanent_lf_smoothing_band, 0, 64);
res = res & Limit(&c->suppressor.last_lf_smoothing_band, 0, 64);
res = res & Limit(&c->suppressor.last_lf_band, 0, 63);
res = res &
Limit(&c->suppressor.first_hf_band, c->suppressor.last_lf_band + 1, 64);
res = res & Limit(&c->suppressor.dominant_nearend_detection.enr_threshold,
0.f, 1000000.f);
res = res & Limit(&c->suppressor.dominant_nearend_detection.snr_threshold,
0.f, 1000000.f);
res = res & Limit(&c->suppressor.dominant_nearend_detection.hold_duration, 0,
10000);
res = res & Limit(&c->suppressor.dominant_nearend_detection.trigger_threshold,
0, 10000);
res = res &
Limit(&c->suppressor.subband_nearend_detection.nearend_average_blocks,
1, 1024);
res =
res & Limit(&c->suppressor.subband_nearend_detection.subband1.low, 0, 65);
res = res & Limit(&c->suppressor.subband_nearend_detection.subband1.high,
c->suppressor.subband_nearend_detection.subband1.low, 65);
res =
res & Limit(&c->suppressor.subband_nearend_detection.subband2.low, 0, 65);
res = res & Limit(&c->suppressor.subband_nearend_detection.subband2.high,
c->suppressor.subband_nearend_detection.subband2.low, 65);
res = res & Limit(&c->suppressor.subband_nearend_detection.nearend_threshold,
0.f, 1.e24f);
res = res & Limit(&c->suppressor.subband_nearend_detection.snr_threshold, 0.f,
1.e24f);
res = res & Limit(&c->suppressor.high_bands_suppression.enr_threshold, 0.f,
1000000.f);
res = res & Limit(&c->suppressor.high_bands_suppression.max_gain_during_echo,
0.f, 1.f);
res = res & Limit(&c->suppressor.high_bands_suppression
.anti_howling_activation_threshold,
0.f, 32768.f * 32768.f);
res = res & Limit(&c->suppressor.high_bands_suppression.anti_howling_gain,
0.f, 1.f);
res = res & Limit(&c->suppressor.floor_first_increase, 0.f, 1000000.f);
return res;
}
} // namespace webrtc