src/WInputSttMicEffect.cpp

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the License);
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an AS IS BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <cmath>
  18 #include <algorithm>
  19 #include <numeric>
  20
  21 #include <efl_extension.h>
  22 #include "WInputSttMicEffect.h"
  23
  24 namespace {
  25 template<class T>
  26 static unsigned long long SumSquare(unsigned long long const& a, T const& b) {
  27         return a + b*b;
  28 }
  29
  30 const double MAX_AMPLITUDE_MEAN_16 = 23170.115738161934;
  31 const double MAX_AMPLITUDE_MEAN_08 = 89.803909382810;
  32
  33 unsigned int sample_count = SAMPLE_COUNT;
  34
  35 }
  36
  37 using namespace is::ui;
  38
  39
  40 WInputSttMicEffect::WInputSttMicEffect()
  41         : processing_effect_timer(NULL)
  42         , progressbar(NULL)
  43         , count(5)
  44         , square_sum(0)
  45         , handle(NULL) {
  46 }
  47
  48 WInputSttMicEffect::~WInputSttMicEffect() {
  49         ProcessingAnimationStop();
  50 }
  51
  52 std::vector<int> WInputSttMicEffect::GetVolume() {
  53         std::vector<int> result;
  54
  55         short pcm[512] = {0};
  56         int size = 0;
  57         int ret = 0;
  58
  59 //      ret = stt_get_spectrum(handle, (void *) pcm, &size);
  60         count = 5;
  61
  62         if (STT_ERROR_NONE != ret) {
  63                 PRINTFUNC(DLOG_ERROR, "stt_audio_snapshot invalid (%d)", ret);
  64         } else {
  65                 unsigned int level = 0;
  66                 unsigned int step = (unsigned int) (size/2/sample_count);
  67
  68                 for (unsigned int k = 0; k < sample_count; k++ ){
  69                         square_sum = std::accumulate(pcm + k*step, pcm + k*step + 5, 0ull, SumSquare<short>);
  70                         level = ConvertLevel();
  71                         result.push_back(level);
  72                 }
  73         }
  74         return result;
  75 }
  76
  77 float WInputSttMicEffect::GetDecibel() const
  78 {
  79         float rms = std::sqrt(square_sum/count);
  80         return 20.0*log10(rms);
  81 }
  82
  83 int WInputSttMicEffect::ConvertLevel()
  84 {
  85         float db = GetDecibel();
  86
  87         if ( db <= 30.0 ){
  88                 return 0;
  89         } else if ( db <= 33.3 ){
  90                 return 1;
  91         } else if ( db <= 36.6 ){
  92                 return 2;
  93         } else if ( db <= 40 ){
  94                 return 3;
  95         } else if ( db <= 43.3 ){
  96                 return 4;
  97         } else if ( db <= 46.6 ){
  98                 return 5;
  99         } else if ( db <= 50 ){
 100                 return 6;
 101         } else if ( db <= 53.3 ){
 102                 return 7;
 103         } else if ( db <= 56.6 ){
 104                 return 8;
 105         } else if ( db <= 60 ){
 106                 return 9;
 107         } else {
 108                 return 10;
 109         }
 110 }
 111
 112 void WInputSttMicEffect::ProcessingAnimationStart() {
 113         elm_progressbar_pulse(progressbar, EINA_TRUE);
 114
 115         processing_effect_timer = ecore_timer_add(0.1,
 116                 [](void *data)->Eina_Bool
 117                 {
 118                         if(!data) return ECORE_CALLBACK_CANCEL;
 119 /*
 120                         WInputSttMicEffect *effect = (WInputSttMicEffect *) data;
 121                         Evas_Object *progressbar = effect->progressbar;
 122
 123                         double progress = eext_circle_value_get(progressbar);
 124
 125                         if (progress < 100)
 126                                 progress += 5.0;
 127                         else
 128                                 progress = 0.0;
 129
 130                         eext_circle_value_set(progressbar, progress);
 131 */
 132                         return ECORE_CALLBACK_RENEW;
 133                 }, this);
 134 }
 135
 136 void WInputSttMicEffect::ProcessingAnimationStop() {
 137         if(processing_effect_timer)
 138         {
 139                 ecore_timer_del(processing_effect_timer);
 140                 processing_effect_timer = NULL;
 141         }
 142         elm_progressbar_pulse(progressbar, EINA_FALSE);
 143 }
 144
 145
 146
 147 void WInputSttMicEffect::SetSttHandle(stt_h handle) {
 148         this->handle = handle;
 149 }
 150
 151
 152
 153 void WInputSttMicEffect::SetProgressBar(Evas_Object *progress) {
 154         this->progressbar = progress;
 155 }