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             : #include "prot.h"
      41             : #include "rom_com.h"
      42             : #include "wmc_auto.h"
      43             : 
      44             : /*------------------------------------------------------------------*
      45             :  * vlpc_1st_dec()
      46             :  *
      47             :  *
      48             :  *------------------------------------------------------------------*/
      49             : 
      50      319281 : void vlpc_1st_dec(
      51             :     const int16_t index, /* i  : codebook index                  */
      52             :     float *lsfq,         /* i/o:  i:prediction   o:quantized lsf */
      53             :     const int32_t sr_core )
      54             : {
      55             :     int16_t i;
      56             :     const float *p_dico;
      57      319281 :     float scale = ( (float) sr_core ) / INT_FS_12k8;
      58             : 
      59      319281 :     assert( index < 256 );
      60             : 
      61      319281 :     p_dico = &dico_lsf_abs_8b[index * M];
      62     5427777 :     for ( i = 0; i < M; i++ )
      63             :     {
      64     5108496 :         lsfq[i] += scale * *p_dico++;
      65             :     }
      66             : 
      67      319281 :     return;
      68             : }