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/*
* 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.
*/
#ifndef WEBRTC_AUDIO_AUDIO_STATE_H_
#define WEBRTC_AUDIO_AUDIO_STATE_H_
#include "webrtc/audio_state.h"
#include "webrtc/audio/scoped_voe_interface.h"
#include "webrtc/base/constructormagic.h"
#include "webrtc/base/criticalsection.h"
#include "webrtc/base/thread_checker.h"
#include "webrtc/voice_engine/include/voe_base.h"
namespace webrtc {
namespace internal {
class AudioState final : public webrtc::AudioState,
public webrtc::VoiceEngineObserver {
public:
explicit AudioState(const AudioState::Config& config);
~AudioState() override;
VoiceEngine* voice_engine();
bool typing_noise_detected() const;
private:
// rtc::RefCountInterface implementation.
int AddRef() const override;
int Release() const override;
// webrtc::VoiceEngineObserver implementation.
void CallbackOnError(int channel_id, int err_code) override;
rtc::ThreadChecker thread_checker_;
rtc::ThreadChecker process_thread_checker_;
const webrtc::AudioState::Config config_;
// We hold one interface pointer to the VoE to make sure it is kept alive.
ScopedVoEInterface<VoEBase> voe_base_;
// The critical section isn't strictly needed in this case, but xSAN bots may
// trigger on unprotected cross-thread access.
mutable rtc::CriticalSection crit_sect_;
bool typing_noise_detected_ GUARDED_BY(crit_sect_) = false;
// Reference count; implementation copied from rtc::RefCountedObject.
mutable volatile int ref_count_ = 0;
RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(AudioState);
};
} // namespace internal
} // namespace webrtc
#endif // WEBRTC_AUDIO_AUDIO_STATE_H_
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