mirror of
https://github.com/danog/libtgvoip.git
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5caaaafa42
I'm now using the entire audio processing module from WebRTC as opposed to individual DSP algorithms pulled from there before. Seems to work better this way.
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/audio_processing/typing_detection.h"
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namespace webrtc {
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TypingDetection::TypingDetection()
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: time_active_(0),
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time_since_last_typing_(0),
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penalty_counter_(0),
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counter_since_last_detection_update_(0),
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detection_to_report_(false),
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new_detection_to_report_(false),
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time_window_(10),
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cost_per_typing_(100),
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reporting_threshold_(300),
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penalty_decay_(1),
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type_event_delay_(2),
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report_detection_update_period_(1) {}
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TypingDetection::~TypingDetection() {}
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bool TypingDetection::Process(bool key_pressed, bool vad_activity) {
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if (vad_activity)
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time_active_++;
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else
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time_active_ = 0;
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// Keep track if time since last typing event
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if (key_pressed)
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time_since_last_typing_ = 0;
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else
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++time_since_last_typing_;
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if (time_since_last_typing_ < type_event_delay_ && vad_activity &&
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time_active_ < time_window_) {
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penalty_counter_ += cost_per_typing_;
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if (penalty_counter_ > reporting_threshold_)
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new_detection_to_report_ = true;
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}
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if (penalty_counter_ > 0)
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penalty_counter_ -= penalty_decay_;
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if (++counter_since_last_detection_update_ ==
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report_detection_update_period_) {
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detection_to_report_ = new_detection_to_report_;
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new_detection_to_report_ = false;
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counter_since_last_detection_update_ = 0;
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}
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return detection_to_report_;
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}
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int TypingDetection::TimeSinceLastDetectionInSeconds() {
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// Round to whole seconds.
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return (time_since_last_typing_ + 50) / 100;
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}
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void TypingDetection::SetParameters(int time_window,
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int cost_per_typing,
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int reporting_threshold,
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int penalty_decay,
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int type_event_delay,
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int report_detection_update_period) {
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if (time_window)
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time_window_ = time_window;
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if (cost_per_typing)
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cost_per_typing_ = cost_per_typing;
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if (reporting_threshold)
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reporting_threshold_ = reporting_threshold;
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if (penalty_decay)
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penalty_decay_ = penalty_decay;
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if (type_event_delay)
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type_event_delay_ = type_event_delay;
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if (report_detection_update_period)
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report_detection_update_period_ = report_detection_update_period;
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}
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} // namespace webrtc
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