chromium/third_party/webrtc/modules/audio_processing/vad/voice_activity_detector.cc

/*
 *  Copyright (c) 2015 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/vad/voice_activity_detector.h"

#include <algorithm>

#include "rtc_base/checks.h"

namespace webrtc {
namespace {

const size_t kNumChannels = …;

const double kDefaultVoiceValue = …;
const double kNeutralProbability = …;
const double kLowProbability = …;

}  // namespace

VoiceActivityDetector::VoiceActivityDetector()
    : … { … }

VoiceActivityDetector::~VoiceActivityDetector() = default;

// Because ISAC has a different chunk length, it updates
// `chunkwise_voice_probabilities_` and `chunkwise_rms_` when there is new data.
// Otherwise it clears them.
void VoiceActivityDetector::ProcessChunk(const int16_t* audio,
                                         size_t length,
                                         int sample_rate_hz) { … }

}  // namespace webrtc