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_CONFERENCE_MIXER_SOURCE_LEVEL_INDICATOR_H_ 12 #define WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_LEVEL_INDICATOR_H_ 13 14 #include "webrtc/typedefs.h" 15 16 namespace webrtc { 17 class LevelIndicator 18 { 19 public: 20 enum{TICKS_BEFORE_CALCULATION = 10}; 21 22 LevelIndicator(); 23 ~LevelIndicator(); 24 25 // Updates the level. 26 void ComputeLevel(const int16_t* speech, 27 const uint16_t nrOfSamples); 28 29 int32_t GetLevel(); 30 private: 31 int32_t _max; 32 uint32_t _count; 33 uint32_t _currentLevel; 34 }; 35 } // namespace webrtc 36 37 #endif // WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_LEVEL_INDICATOR_H_ 38
