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/*
* Copyright (c) 2012 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.
*/
#ifndef MODULES_AUDIO_PROCESSING_LEVEL_ESTIMATOR_IMPL_H_
#define MODULES_AUDIO_PROCESSING_LEVEL_ESTIMATOR_IMPL_H_
#include <memory>
#include "modules/audio_processing/include/audio_processing.h"
#include "rtc_base/constructormagic.h"
#include "rtc_base/criticalsection.h"
namespace webrtc {
class AudioBuffer;
class RmsLevel;
class LevelEstimatorImpl : public LevelEstimator {
public:
explicit LevelEstimatorImpl(rtc::CriticalSection* crit);
~LevelEstimatorImpl() override;
// TODO(peah): Fold into ctor, once public API is removed.
void Initialize();
void ProcessStream(AudioBuffer* audio);
// LevelEstimator implementation.
int Enable(bool enable) override;
bool is_enabled() const override;
int RMS() override;
private:
rtc::CriticalSection* const crit_ = nullptr;
bool enabled_ RTC_GUARDED_BY(crit_) = false;
std::unique_ptr<RmsLevel> rms_ RTC_GUARDED_BY(crit_);
RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(LevelEstimatorImpl);
};
} // namespace webrtc
#endif // MODULES_AUDIO_PROCESSING_LEVEL_ESTIMATOR_IMPL_H_
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