blob: eade94960516a9f2407d5f6a4b62125299da73f7 [file] [log] [blame]
* 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/array_view.h"
#include "api/audio/echo_canceller3_config.h"
#include "rtc_base/constructormagic.h"
namespace webrtc {
// Class for applying a smoothly increasing limit for the suppression gain
// during call startup and after in-call resets.
class SuppressionGainUpperLimiter {
explicit SuppressionGainUpperLimiter(const EchoCanceller3Config& config);
// Reset the limiting behavior.
void Reset();
// Updates the limiting behavior for the current capture bloc.
void Update(bool render_activity, bool transparent_mode);
// Returns the current suppressor gain limit.
float Limit() const { return suppressor_gain_limit_; }
// Return whether the suppressor gain limit is active.
bool IsActive() const { return (realignment_counter_ > 0); }
// Inactivate limiter.
void Deactivate() {
realignment_counter_ = 0;
suppressor_gain_limit_ = 1.f;
const EchoCanceller3Config::EchoRemovalControl::GainRampup rampup_config_;
const float gain_rampup_increase_;
bool call_startup_phase_ = true;
int realignment_counter_ = 0;
bool active_render_seen_ = false;
float suppressor_gain_limit_ = 1.f;
bool recent_reset_ = false;
} // namespace webrtc