Line data    Source code

       1             : /******************************************************************************
       2             : *                        ETSI TS 103 634 V1.5.1                               *
       3             : *              Low Complexity Communication Codec Plus (LC3plus)              *
       4             : *                                                                             *
       5             : * Copyright licence is solely granted through ETSI Intellectual Property      *
       6             : * Rights Policy, 3rd April 2019. No patent licence is granted by implication, *
       7             : * estoppel or otherwise.                                                      *
       8             : ******************************************************************************/
       9             : 
      10             : #include "options.h"
      11             : #include "wmc_auto.h"
      12             : #include "defines.h"
      13             : #include "functions.h"
      14             : 
      15           0 : void plc_phEcu_tba_per_band_gain(LC3_INT32 n_grp, LC3_FLOAT *gr_pow_left, LC3_FLOAT *gr_pow_right, LC3_FLOAT *trans, LC3_FLOAT *grp_pow_change) 
      16             : {
      17             :     LC3_INT32 i;
      18             : 
      19             :     /* per band gain */
      20           0 :     for (i = 0; i < n_grp; i++) {
      21           0 :         if (gr_pow_left[i] > 0)
      22             :         {
      23           0 :             trans[i] = gr_pow_right[i] / gr_pow_left[i];
      24             :         }
      25             :         else
      26             :         {
      27             :             /* handle division by zero case */
      28           0 :             if  (gr_pow_right[i] > 0)
      29             :             {
      30           0 :                 trans[i] = 10.0;   /* positive/0  transient  */
      31             :             }
      32             :             else
      33             :             {
      34           0 :                 trans[i] = 1.0;  /* 0/0  no transient , no power change */
      35             :             }
      36             :         }
      37           0 :         grp_pow_change[i] = (LC3_FLOAT) 10.0  * LC3_LOGTEN(trans[i]);
      38             : 
      39             :     }
      40             : 
      41           0 :     return;  
      42             : }