| Index: webrtc/modules/audio_conference_mixer/source/level_indicator.cc
|
| diff --git a/webrtc/modules/audio_conference_mixer/source/level_indicator.cc b/webrtc/modules/audio_conference_mixer/source/level_indicator.cc
|
| deleted file mode 100644
|
| index 3c573d41aeeb713461cb5be0a5ec9f6a42519404..0000000000000000000000000000000000000000
|
| --- a/webrtc/modules/audio_conference_mixer/source/level_indicator.cc
|
| +++ /dev/null
|
| @@ -1,76 +0,0 @@
|
| -/*
|
| - * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
| - *
|
| - * Use of this source code is governed by a BSD-style license
|
| - * that can be found in the LICENSE file in the root of the source
|
| - * tree. An additional intellectual property rights grant can be found
|
| - * in the file PATENTS. All contributing project authors may
|
| - * be found in the AUTHORS file in the root of the source tree.
|
| - */
|
| -
|
| -#include "webrtc/modules/audio_conference_mixer/source/level_indicator.h"
|
| -
|
| -namespace webrtc {
|
| -// Array for adding smothing to level changes (ad-hoc).
|
| -const uint32_t perm[] =
|
| - {0,1,2,3,4,4,5,5,5,5,6,6,6,6,6,7,7,7,7,8,8,8,9,9,9,9,9,9,9,9,9,9,9};
|
| -
|
| -LevelIndicator::LevelIndicator()
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| - : _max(0),
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| - _count(0),
|
| - _currentLevel(0)
|
| -{
|
| -}
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| -
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| -LevelIndicator::~LevelIndicator()
|
| -{
|
| -}
|
| -
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| -// Level is based on the highest absolute value for all samples.
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| -void LevelIndicator::ComputeLevel(const int16_t* speech,
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| - const uint16_t nrOfSamples)
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| -{
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| - int32_t min = 0;
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| - for(uint32_t i = 0; i < nrOfSamples; i++)
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| - {
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| - if(_max < speech[i])
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| - {
|
| - _max = speech[i];
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| - }
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| - if(min > speech[i])
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| - {
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| - min = speech[i];
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| - }
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| - }
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| -
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| - // Absolute max value.
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| - if(-min > _max)
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| - {
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| - _max = -min;
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| - }
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| -
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| - if(_count == TICKS_BEFORE_CALCULATION)
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| - {
|
| - // Highest sample value maps directly to a level.
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| - int32_t position = _max / 1000;
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| - if ((position == 0) &&
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| - (_max > 250))
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| - {
|
| - position = 1;
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| - }
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| - _currentLevel = perm[position];
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| - // The max value is decayed and stored so that it can be reused to slow
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| - // down decreases in level.
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| - _max = _max >> 1;
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| - _count = 0;
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| - } else {
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| - _count++;
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| - }
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| -}
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| -
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| -int32_t LevelIndicator::GetLevel()
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| -{
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| - return _currentLevel;
|
| -}
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| -
|
| -} // namespace webrtc
|
|
|