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             : #include "prot.h"
      40             : #include "stat_enc.h"
      41             : #include "cnst.h"
      42             : #include "rom_com.h"
      43             : #include "wmc_auto.h"
      44             : 
      45             : #define NBITS_GACELP 5
      46             : 
      47             : /*-------------------------------------------------------------------*
      48             :  * init_PLC_enc()
      49             :  *
      50             :  *
      51             :  *-------------------------------------------------------------------*/
      52             : 
      53         101 : void init_PLC_enc(
      54             :     PLC_ENC_EVS_HANDLE hPlcExt,
      55             :     const int32_t sr_core )
      56             : {
      57             :     int16_t itr;
      58             : 
      59         101 :     hPlcExt->enableGplc = 0;
      60         101 :     hPlcExt->calcOnlylsf = 1;
      61         101 :     hPlcExt->nBits = NBITS_GACELP;
      62         101 :     hPlcExt->stab_fac = 0;
      63         101 :     set_f( hPlcExt->lsfoldbfi0, 0.0f, M );
      64         101 :     set_f( hPlcExt->lsfoldbfi1, 0.0f, M );
      65         101 :     set_f( hPlcExt->lsf_adaptive_mean, 0.0f, M );
      66         101 :     set_f( hPlcExt->old_exc, 0.0f, 8 );
      67         101 :     set_f( hPlcExt->mem_MA, 0.0f, M );
      68         101 :     set_f( hPlcExt->lsfold, 0.0f, M );
      69         101 :     set_f( hPlcExt->lspold, 0.0f, M );
      70             : 
      71         101 :     if ( sr_core == INT_FS_12k8 )
      72             :     {
      73          25 :         hPlcExt->T0_4th = L_SUBFR;
      74          25 :         hPlcExt->T0 = L_SUBFR;
      75         425 :         for ( itr = 0; itr < M; itr++ )
      76             :         {
      77         400 :             hPlcExt->lsf_con[itr] = lsf_init[itr];
      78         400 :             hPlcExt->last_lsf_ref[itr] = lsf_init[itr];
      79         400 :             hPlcExt->last_lsf_con[itr] = lsf_init[itr];
      80             :         }
      81             :     }
      82             :     else
      83             :     {
      84          76 :         hPlcExt->T0_4th = L_SUBFR;
      85          76 :         hPlcExt->T0 = L_SUBFR;
      86        1292 :         for ( itr = 0; itr < M; itr++ )
      87             :         {
      88        1216 :             hPlcExt->lsf_con[itr] = lsf_init[itr] * 1.25f;
      89        1216 :             hPlcExt->last_lsf_ref[itr] = lsf_init[itr] * 1.25f;
      90        1216 :             hPlcExt->last_lsf_con[itr] = lsf_init[itr] * 1.25f;
      91             :         }
      92             :     }
      93             : 
      94         101 :     return;
      95             : }
      96             : 
      97             : 
      98             : /*-------------------------------------------------------------------*
      99             :  * gPLC_encInfo()
     100             :  *
     101             :  * Function to extract and write guided information
     102             :  *-------------------------------------------------------------------*/
     103             : 
     104        1250 : void gPLC_encInfo(
     105             :     PLC_ENC_EVS_HANDLE hPlcExt,
     106             :     const int32_t total_brate,
     107             :     const int16_t bwidth,
     108             :     const int16_t last_clas,
     109             :     const int16_t coder_type )
     110             : {
     111        1250 :     if ( hPlcExt )
     112             :     {
     113        1250 :         hPlcExt->calcOnlylsf = 1;
     114        1250 :         if ( bwidth >= WB && total_brate == ACELP_24k40 )
     115             :         {
     116         975 :             hPlcExt->enableGplc = 1;
     117             : 
     118         975 :             if ( ( last_clas == VOICED_CLAS || last_clas == ONSET ) && ( coder_type == VOICED || coder_type == GENERIC ) )
     119             :             {
     120         431 :                 hPlcExt->nBits = NBITS_GACELP;
     121         431 :                 hPlcExt->calcOnlylsf = 0;
     122             :             }
     123             :             else
     124             :             {
     125         544 :                 hPlcExt->nBits = 1;
     126             :             }
     127             :         }
     128             :         else
     129             :         {
     130         275 :             hPlcExt->enableGplc = 0;
     131         275 :             hPlcExt->nBits = 0;
     132             :         }
     133             :     }
     134             : 
     135        1250 :     return;
     136             : }