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 <assert.h>
      38             : #include <stdint.h>
      39             : #include "options.h"
      40             : #ifdef DEBUGGING
      41             : #include "debug.h"
      42             : #endif
      43             : #include "prot.h"
      44             : #include "rom_com.h"
      45             : #include "wmc_auto.h"
      46             : 
      47             : /*---------------------------------------------------------------------*
      48             :  * routine:   dlpc_bfi()
      49             :  *
      50             :  *
      51             :  *---------------------------------------------------------------------*/
      52             : 
      53       15014 : void dlpc_bfi(
      54             :     const int16_t L_frame,
      55             :     float *lsf_q,             /* o  : quantized lsfs                         */
      56             :     const float *lsfold,      /* i  : past quantized lsf                     */
      57             :     const int16_t last_good,  /* i  : last good received frame               */
      58             :     const int16_t nbLostCmpt, /* i  : counter of consecutive bad frames      */
      59             :     float mem_MA[],           /* i/o: quantizer memory for MA model          */
      60             :     float *mem_AR,            /* i/o: quantizer memory for AR model          */
      61             :     float *stab_fac,          /* i  : lsf stability factor                   */
      62             :     float *lsf_adaptive_mean, /* i  : lsf adaptive mean, updated when BFI==0 */
      63             :     const int16_t numlpc,     /* i  : Number of division per superframe      */
      64             :     float lsf_cng[],
      65             :     const int16_t plcBackgroundNoiseUpdated,
      66             :     float *lsf_q_cng,     /* o  : quantized lsfs of background noise      */
      67             :     float *old_lsf_q_cng, /* o  : old quantized lsfs for background noise */
      68             :     const float lsfBase[] /* i  : base for differential lsf coding        */
      69             : )
      70             : {
      71       15014 :     lsf_dec_bfi( MODE2, &lsf_q[0], lsfold, lsf_adaptive_mean, lsfBase, mem_MA, mem_AR, *stab_fac, 0, L_frame, last_good, nbLostCmpt, plcBackgroundNoiseUpdated, lsf_q_cng, lsf_cng, old_lsf_q_cng, 0, 0, 0 );
      72             : 
      73       15014 :     if ( numlpc == 2 )
      74             :     {
      75             :         /* Decode the second LPC */
      76          93 :         lsf_dec_bfi( MODE2, &lsf_q[M], &lsf_q[0], lsf_adaptive_mean, lsfBase, mem_MA, mem_AR, *stab_fac, 0, L_frame, last_good, nbLostCmpt + 1, plcBackgroundNoiseUpdated, lsf_q_cng, lsf_cng, old_lsf_q_cng, 0, 0, 0 );
      77             :     }
      78             : 
      79       15014 :     return;
      80             : }