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 "rom_com.h"
      44             : #include "prot.h"
      45             : #include "wmc_auto.h"
      46             : 
      47             : /*-------------------------------------------------------------------*
      48             :  * CNG_reset_enc()
      49             :  *
      50             :  * Reset encoder static variables after a CNG frame
      51             :  *-------------------------------------------------------------------*/
      52             : 
      53       15427 : void CNG_reset_enc(
      54             :     Encoder_State *st,    /* i/o: encoder state structure          */
      55             :     float *pitch_buf,     /* o  : floating pitch for each subframe */
      56             :     float *voice_factors, /* o  : voicing factors                  */
      57             :     int16_t VBR_cng_reset_flag )
      58             : {
      59       15427 :     init_gp_clip( st->clip_var );
      60       15427 :     mvr2r( UVWB_Ave, st->mem_AR, M );
      61       15427 :     set_f( st->mem_MA, 0, M );
      62       15427 :     st->hLPDmem->mem_w0 = 0.0f;
      63       15427 :     st->hLPDmem->tilt_code = 0.0f;
      64       15427 :     st->hLPDmem->gc_threshold = 0.0f;
      65             : 
      66       15427 :     if ( VBR_cng_reset_flag )
      67             :     {
      68           0 :         set_f( st->hLPDmem->mem_syn, 0, M );
      69             :     }
      70       15427 :     set_f( st->hLPDmem->dispMem, 0, 8 );
      71             : 
      72             :     /* last good received frame for FEC in ACELP */
      73       15427 :     st->clas = UNVOICED_CLAS;
      74             : 
      75             :     /* reset the pitch buffer in case of FRAME_NO_DATA or SID frames */
      76       15427 :     if ( st->L_frame == L_FRAME )
      77             :     {
      78        7675 :         set_f( pitch_buf, (float) L_SUBFR, NB_SUBFR );
      79             :     }
      80             :     else /* st->L_frame == L_FRAME16k */
      81             :     {
      82        7752 :         set_f( pitch_buf, (float) L_SUBFR16k, NB_SUBFR16k );
      83             :     }
      84             : 
      85       15427 :     set_f( voice_factors, 1.0, NB_SUBFR16k );
      86             : 
      87       15427 :     if ( st->hTdCngEnc != NULL )
      88             :     {
      89             :         /* Reset active frame counter */
      90       13274 :         st->hTdCngEnc->act_cnt2 = 0;
      91             :     }
      92             : 
      93             :     /* deactivate bass post-filter */
      94       15427 :     st->bpf_off = 1;
      95             : 
      96       15427 :     return;
      97             : }