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_LEVEL_ESTIMATOR_IMPL_H_ 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_ESTIMATOR_IMPL_H_ 13 14 #include "webrtc/modules/audio_processing/include/audio_processing.h" 15 #include "webrtc/modules/audio_processing/processing_component.h" 16 #include "webrtc/modules/audio_processing/rms_level.h" 17 18 namespace webrtc { 19 20 class AudioBuffer; 21 class CriticalSectionWrapper; 22 23 class LevelEstimatorImpl : public LevelEstimator, 24 public ProcessingComponent { 25 public: 26 LevelEstimatorImpl(const AudioProcessing* apm, 27 CriticalSectionWrapper* crit); 28 virtual ~LevelEstimatorImpl(); 29 30 int ProcessStream(AudioBuffer* audio); 31 32 // LevelEstimator implementation. 33 virtual bool is_enabled() const OVERRIDE; 34 35 private: 36 // LevelEstimator implementation. 37 virtual int Enable(bool enable) OVERRIDE; 38 virtual int RMS() OVERRIDE; 39 40 // ProcessingComponent implementation. 41 virtual void* CreateHandle() const OVERRIDE; 42 virtual int InitializeHandle(void* handle) const OVERRIDE; 43 virtual int ConfigureHandle(void* handle) const OVERRIDE; 44 virtual void DestroyHandle(void* handle) const OVERRIDE; 45 virtual int num_handles_required() const OVERRIDE; 46 virtual int GetHandleError(void* handle) const OVERRIDE; 47 48 CriticalSectionWrapper* crit_; 49 }; 50 51 } // namespace webrtc 52 53 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_ESTIMATOR_IMPL_H_ 54
