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_VOICE_DETECTION_IMPL_H_ 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_VOICE_DETECTION_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 VoiceDetectionImpl : public VoiceDetection { 24 public: 25 explicit VoiceDetectionImpl(rtc::CriticalSection* crit); 26 ~VoiceDetectionImpl() override; 27 28 // TODO(peah): Fold into ctor, once public API is removed. 29 void Initialize(int sample_rate_hz); 30 void ProcessCaptureAudio(AudioBuffer* audio); 31 32 // VoiceDetection implementation. 33 int Enable(bool enable) override; 34 bool is_enabled() const override; 35 int set_stream_has_voice(bool has_voice) override; 36 bool stream_has_voice() const override; 37 int set_likelihood(Likelihood likelihood) override; 38 Likelihood likelihood() const override; 39 int set_frame_size_ms(int size) override; 40 int frame_size_ms() const override; 41 42 private: 43 class Vad; 44 rtc::CriticalSection* const crit_; 45 bool enabled_ GUARDED_BY(crit_) = false; 46 bool stream_has_voice_ GUARDED_BY(crit_) = false; 47 bool using_external_vad_ GUARDED_BY(crit_) = false; 48 Likelihood likelihood_ GUARDED_BY(crit_) = kLowLikelihood; 49 int frame_size_ms_ GUARDED_BY(crit_) = 10; 50 size_t frame_size_samples_ GUARDED_BY(crit_) = 0; 51 int sample_rate_hz_ GUARDED_BY(crit_) = 0; 52 rtc::scoped_ptr<Vad> vad_ GUARDED_BY(crit_); 53 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(VoiceDetectionImpl); 54 }; 55 } // namespace webrtc 56 57 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_VOICE_DETECTION_IMPL_H_ 58