1 /* 2 * Copyright (c) 2011 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_MAIN_SOURCE_LEVEL_ESTIMATOR_IMPL_H_ 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_LEVEL_ESTIMATOR_IMPL_H_ 13 14 #include "audio_processing.h" 15 #include "processing_component.h" 16 17 namespace webrtc { 18 class AudioProcessingImpl; 19 class AudioBuffer; 20 21 class LevelEstimatorImpl : public LevelEstimator, 22 public ProcessingComponent { 23 public: 24 explicit LevelEstimatorImpl(const AudioProcessingImpl* apm); 25 virtual ~LevelEstimatorImpl(); 26 27 int ProcessStream(AudioBuffer* audio); 28 29 // LevelEstimator implementation. 30 virtual bool is_enabled() const; 31 32 // ProcessingComponent implementation. 33 virtual int get_version(char* version, int version_len_bytes) const; 34 35 private: 36 // LevelEstimator implementation. 37 virtual int Enable(bool enable); 38 virtual int RMS(); 39 40 // ProcessingComponent implementation. 41 virtual void* CreateHandle() const; 42 virtual int InitializeHandle(void* handle) const; 43 virtual int ConfigureHandle(void* handle) const; 44 virtual int DestroyHandle(void* handle) const; 45 virtual int num_handles_required() const; 46 virtual int GetHandleError(void* handle) const; 47 48 const AudioProcessingImpl* apm_; 49 }; 50 } // namespace webrtc 51 52 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_LEVEL_ESTIMATOR_IMPL_H_ 53