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| 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_ | |
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