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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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