1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NOISE_SUPPRESSION_IMPL_H_ 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_NOISE_SUPPRESSION_IMPL_H_ 13 14 #include "webrtc/base/constructormagic.h" 15 #include "webrtc/base/criticalsection.h" 16 #include "webrtc/base/scoped_ptr.h" 17 #include "webrtc/modules/audio_processing/include/audio_processing.h" 18 19 namespace webrtc { 20 21 class AudioBuffer; 22 23 class NoiseSuppressionImpl : public NoiseSuppression { 24 public: 25 explicit NoiseSuppressionImpl(rtc::CriticalSection* crit); 26 ~NoiseSuppressionImpl() override; 27 28 // TODO(peah): Fold into ctor, once public API is removed. 29 void Initialize(size_t channels, int sample_rate_hz); 30 void AnalyzeCaptureAudio(AudioBuffer* audio); 31 void ProcessCaptureAudio(AudioBuffer* audio); 32 33 // NoiseSuppression implementation. 34 int Enable(bool enable) override; 35 bool is_enabled() const override; 36 int set_level(Level level) override; 37 Level level() const override; 38 float speech_probability() const override; 39 40 private: 41 class Suppressor; 42 rtc::CriticalSection* const crit_; 43 bool enabled_ GUARDED_BY(crit_) = false; 44 Level level_ GUARDED_BY(crit_) = kModerate; 45 size_t channels_ GUARDED_BY(crit_) = 0; 46 int sample_rate_hz_ GUARDED_BY(crit_) = 0; 47 std::vector<rtc::scoped_ptr<Suppressor>> suppressors_ GUARDED_BY(crit_); 48 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(NoiseSuppressionImpl); 49 }; 50 } // namespace webrtc 51 52 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_NOISE_SUPPRESSION_IMPL_H_ 53