Line data    Source code

       1             : /******************************************************************************************************
       2             : 
       3             :    (C) 2022-2025 IVAS codec Public Collaboration with portions copyright Dolby International AB, Ericsson AB,
       4             :    Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
       5             :    Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
       6             :    Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
       7             :    contributors to this repository. All Rights Reserved.
       8             : 
       9             :    This software is protected by copyright law and by international treaties.
      10             :    The IVAS codec Public Collaboration consisting of Dolby International AB, Ericsson AB,
      11             :    Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Huawei Technologies Co. LTD.,
      12             :    Koninklijke Philips N.V., Nippon Telegraph and Telephone Corporation, Nokia Technologies Oy, Orange,
      13             :    Panasonic Holdings Corporation, Qualcomm Technologies, Inc., VoiceAge Corporation, and other
      14             :    contributors to this repository retain full ownership rights in their respective contributions in
      15             :    the software. This notice grants no license of any kind, including but not limited to patent
      16             :    license, nor is any license granted by implication, estoppel or otherwise.
      17             : 
      18             :    Contributors are required to enter into the IVAS codec Public Collaboration agreement before making
      19             :    contributions.
      20             : 
      21             :    This software is provided "AS IS", without any express or implied warranties. The software is in the
      22             :    development stage. It is intended exclusively for experts who have experience with such software and
      23             :    solely for the purpose of inspection. All implied warranties of non-infringement, merchantability
      24             :    and fitness for a particular purpose are hereby disclaimed and excluded.
      25             : 
      26             :    Any dispute, controversy or claim arising under or in relation to providing this software shall be
      27             :    submitted to and settled by the final, binding jurisdiction of the courts of Munich, Germany in
      28             :    accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and
      29             :    the United Nations Convention on Contracts on the International Sales of Goods.
      30             : 
      31             : *******************************************************************************************************/
      32             : 
      33             : /*====================================================================================
      34             :     EVS Codec 3GPP TS26.443 Nov 04, 2021. Version 12.14.0 / 13.10.0 / 14.6.0 / 15.4.0 / 16.3.0
      35             :   ====================================================================================*/
      36             : 
      37             : #include <stdint.h>
      38             : #include "options.h"
      39             : #ifdef DEBUGGING
      40             : #include "debug.h"
      41             : #endif
      42             : #include "cnst.h"
      43             : #include "prot.h"
      44             : #include "wmc_auto.h"
      45             : 
      46             : /*--------------------------------------------------------------------------
      47             :  *  bitallocsum()
      48             :  *
      49             :  *  Calculate the total number of bits allocated over frame
      50             :  *--------------------------------------------------------------------------*/
      51             : 
      52       22680 : void bitallocsum(
      53             :     int16_t *R,             /* i  : bit-allocation vector               */
      54             :     const int16_t nb_sfm,   /* i  : number of sub-vectors               */
      55             :     int16_t *sum,           /* o  : total number of bits allocated      */
      56             :     int16_t *Rsubband,      /* o  : rate per subband (Q3)               */
      57             :     const int16_t num_bits, /* i  : number of bits                      */
      58             :     const int16_t length,   /* i  : length of spectrum                  */
      59             :     const int16_t *sfmsize  /* i  : band length                         */
      60             : )
      61             : {
      62             :     int16_t i;
      63             :     int16_t total, tmp;
      64             :     int16_t diff;
      65             : 
      66       22680 :     total = 0;
      67      965228 :     for ( i = 0; i < nb_sfm; i++ )
      68             :     {
      69      942548 :         tmp = R[i] * sfmsize[i];
      70      942548 :         Rsubband[i] = tmp * 8;
      71      942548 :         total += tmp;
      72             :     }
      73       22680 :     *sum = total;
      74             : 
      75       22680 :     if ( length <= L_FRAME32k )
      76             :     {
      77        2693 :         diff = num_bits - *sum;
      78        2693 :         i = 0;
      79       17219 :         while ( diff > 0 )
      80             :         {
      81       14526 :             if ( R[i] > 0 )
      82             :             {
      83       12018 :                 Rsubband[i] += 8;
      84       12018 :                 diff -= 1;
      85       12018 :                 *sum += 1;
      86             :             }
      87       14526 :             i++;
      88       14526 :             if ( i >= nb_sfm )
      89             :             {
      90           4 :                 i = 0;
      91             :             }
      92             :         }
      93             :     }
      94             : 
      95       22680 :     return;
      96             : }