LCOV - code coverage report
Current view: top level - lib_enc - ivas_spar_encoder_fx.c (source / functions) Hit Total Coverage
Test: Coverage on main enc/dec/rend @ 3b2f07138c61dcf997bbf4165d0882f794b2995f Lines: 365 410 89.0 %
Date: 2025-05-03 01:55:50 Functions: 5 5 100.0 %

          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             : #include <stdint.h>
      34             : #include <assert.h>
      35             : #include "options.h"
      36             : #include "ivas_prot_fx.h"
      37             : #include "prot_fx.h"
      38             : #include "ivas_rom_com.h"
      39             : #include "ivas_stat_com.h"
      40             : #include "math.h"
      41             : #include "wmc_auto.h"
      42             : #include "prot_fx_enc.h"
      43             : #ifdef DEBUGGING
      44             : #include "debug.h"
      45             : #endif
      46             : 
      47             : 
      48             : /*-------------------------------------------------------------------*
      49             :  * Local function prototypes
      50             :  *--------------------------------------------------------------------*/
      51             : 
      52             : static ivas_error ivas_spar_enc_process_fx( Encoder_Struct *st_ivas, const ENCODER_CONFIG_HANDLE hEncoderConfig, BSTR_ENC_HANDLE hMetaData, const Word16 front_vad_flag, Word32 *data_fx[], const Word16 q_data );
      53             : 
      54             : /*-------------------------------------------------------------------------
      55             :  * ivas_spar_enc_open()
      56             :  *
      57             :  * Allocate and initialize SPAR encoder handle and sub-handles
      58             :  *------------------------------------------------------------------------*/
      59        1558 : ivas_error ivas_spar_enc_open_fx(
      60             :     Encoder_Struct *st_ivas,        /* i/o: IVAS encoder handle        */
      61             :     const Word16 spar_reconfig_flag /* i  : SPAR reconfiguration flag  */
      62             : )
      63             : {
      64             :     SPAR_ENC_HANDLE hSpar;
      65             :     ENCODER_CONFIG_HANDLE hEncoderConfig;
      66             :     IVAS_FB_CFG *fb_cfg;
      67             :     Word16 nchan_inp, nchan_transport, sba_order_internal;
      68             :     Word16 nchan_fb_in;
      69             :     Word16 table_idx, active_w_mixing;
      70             :     Word32 input_Fs, ivas_total_brate;
      71             :     ivas_error error;
      72             : 
      73        1558 :     hEncoderConfig = st_ivas->hEncoderConfig;
      74        1558 :     error = IVAS_ERR_OK;
      75        1558 :     move32();
      76        1558 :     hSpar = st_ivas->hSpar;
      77             : 
      78        1558 :     IF( !spar_reconfig_flag )
      79             :     {
      80             :         /* SPAR encoder handle */
      81         279 :         IF( ( hSpar = (SPAR_ENC_HANDLE) malloc( sizeof( SPAR_ENC_DATA ) ) ) == NULL )
      82             :         {
      83           0 :             return IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for SPAR encoder" );
      84             :         }
      85             :     }
      86             : 
      87        1558 :     hSpar->spar_reconfig_flag = 0;
      88        1558 :     move16();
      89        1558 :     input_Fs = hEncoderConfig->input_Fs;
      90        1558 :     move32();
      91        1558 :     sba_order_internal = extract_l( L_min( st_ivas->sba_analysis_order, IVAS_MAX_SBA_ORDER ) );
      92        1558 :     nchan_inp = ivas_sba_get_nchan_metadata_fx( sba_order_internal, hEncoderConfig->ivas_total_brate );
      93        1558 :     assert( nchan_inp <= hEncoderConfig->nchan_inp );
      94        1558 :     ivas_total_brate = hEncoderConfig->ivas_total_brate;
      95        1558 :     move32();
      96        1558 :     nchan_fb_in = 0;
      97        1558 :     move16();
      98        1558 :     IF( EQ_16( st_ivas->sba_analysis_order, 1 ) )
      99             :     {
     100        1299 :         nchan_fb_in = FOA_CHANNELS;
     101        1299 :         move16();
     102             :     }
     103         259 :     ELSE IF( EQ_16( st_ivas->sba_analysis_order, 2 ) )
     104             :     {
     105          73 :         nchan_fb_in = 9;
     106          73 :         move16();
     107             :     }
     108         186 :     ELSE IF( EQ_16( st_ivas->sba_analysis_order, 3 ) )
     109             :     {
     110         186 :         nchan_fb_in = 11;
     111         186 :         move16();
     112             :     }
     113             :     ELSE
     114             :     {
     115           0 :         assert( 0 && "sba_order must be 1,2, or 3!" );
     116             :     }
     117             : 
     118        1558 :     nchan_transport = ivas_get_sba_num_TCs_fx( hEncoderConfig->ivas_total_brate, sba_order_internal );
     119             : 
     120        1558 :     table_idx = ivas_get_spar_table_idx_fx( ivas_total_brate, sba_order_internal, SPAR_CONFIG_BW, NULL, NULL );
     121             : 
     122             :     /* MD handle */
     123        1558 :     IF( ( error = ivas_spar_md_enc_open_fx( &( hSpar->hMdEnc ), hEncoderConfig, sba_order_internal ) ) != IVAS_ERR_OK )
     124             :     {
     125           0 :         return error;
     126             :     }
     127             : 
     128             :     /* set FB config. */
     129        1558 :     active_w_mixing = ivas_spar_br_table_consts[table_idx].active_w;
     130        1558 :     move16();
     131        1558 :     IF( NE_32( ( error = ivas_fb_set_cfg( &fb_cfg, SBA_FORMAT, nchan_inp, nchan_transport, active_w_mixing, input_Fs, nchan_fb_in ) ), IVAS_ERR_OK ) )
     132             :     {
     133           0 :         return error;
     134             :     }
     135        1558 :     fb_cfg->remix_order = remix_order_set[hSpar->hMdEnc->spar_md_cfg.remix_unmix_order];
     136             : 
     137             :     /* FB mixer handle */
     138        1558 :     IF( NE_32( ( error = ivas_FB_mixer_open_fx( &( hSpar->hFbMixer ), input_Fs, fb_cfg, spar_reconfig_flag ) ), IVAS_ERR_OK ) )
     139             :     {
     140           0 :         return error;
     141             :     }
     142             : 
     143             :     /* Covariance handle */
     144        1558 :     IF( NE_32( ( error = ivas_spar_covar_enc_open_fx( &( hSpar->hCovEnc ), hSpar->hFbMixer->pFb, input_Fs, nchan_inp, COV_SMOOTH_SPAR, hEncoderConfig->ivas_total_brate ) ), IVAS_ERR_OK ) )
     145             :     {
     146           0 :         return error;
     147             :     }
     148        1558 :     IF( !spar_reconfig_flag )
     149             :     {
     150             :         /* Transient Detector handle */
     151         279 :         IF( NE_32( ( error = ivas_transient_det_open_fx( &( hSpar->hTranDet ), input_Fs ) ), IVAS_ERR_OK ) )
     152             :         {
     153           0 :             return error;
     154             :         }
     155             :     }
     156             : 
     157             :     /* initialization */
     158        1558 :     hSpar->hMdEnc->table_idx = -1;
     159        1558 :     move16();
     160             :     /* AGC handle */
     161        1558 :     hSpar->AGC_Enable = ivas_agc_enc_get_flag( nchan_transport );
     162        1558 :     move16();
     163        1558 :     hSpar->hAgcEnc = NULL;
     164        1558 :     IF( hSpar->AGC_Enable )
     165             :     {
     166         540 :         IF( NE_32( ( error = ivas_spar_agc_enc_open_fx( &hSpar->hAgcEnc, input_Fs, nchan_inp ) ), IVAS_ERR_OK ) )
     167             :         {
     168           0 :             return error;
     169             :         }
     170             :     }
     171             : 
     172             :     /* PCA handle */
     173        1558 :     hSpar->hPCA = NULL;
     174        1558 :     IF( hEncoderConfig->Opt_PCA_ON )
     175             :     {
     176           4 :         IF( ( hSpar->hPCA = (PCA_ENC_STATE *) malloc( sizeof( PCA_ENC_STATE ) ) ) == NULL )
     177             :         {
     178           0 :             return IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for SPAR PCA encoder" );
     179             :         }
     180           4 :         ivas_pca_enc_init_fx( hSpar->hPCA );
     181             :     }
     182             : 
     183             :     /* initialization */
     184        1558 :     hSpar->hMdEnc->table_idx = -1;
     185        1558 :     move16();
     186             :     /*-----------------------------------------------------------------*
     187             :      * Configuration - set SPAR high-level parameters
     188             :      *-----------------------------------------------------------------*/
     189             : 
     190        1558 :     ivas_spar_config_fx( hEncoderConfig->ivas_total_brate, s_min( st_ivas->sba_analysis_order, IVAS_MAX_SBA_ORDER ), &st_ivas->nchan_transport, &st_ivas->nSCE, &st_ivas->nCPE, &hSpar->core_nominal_brate, -1 );
     191             : 
     192        1558 :     IF( EQ_16( st_ivas->nchan_transport, 1 ) )
     193             :     {
     194         540 :         hEncoderConfig->element_mode_init = IVAS_SCE;
     195             :     }
     196             :     ELSE
     197             :     {
     198        1018 :         hEncoderConfig->element_mode_init = IVAS_CPE_MDCT;
     199             :     }
     200        1558 :     move16();
     201             :     /*-----------------------------------------------------------------*
     202             :      * Allocate and initialize Front-VAD handle
     203             :      *-----------------------------------------------------------------*/
     204             : 
     205        1558 :     IF( !spar_reconfig_flag )
     206             :     {
     207         279 :         hSpar->front_vad_flag = 0;
     208         279 :         move16();
     209         279 :         hSpar->front_vad_dtx_flag = 0;
     210         279 :         move16();
     211         279 :         hSpar->force_front_vad = 0;
     212         279 :         move16();
     213         279 :         IF( hEncoderConfig->Opt_DTX_ON )
     214             :         {
     215          69 :             IF( NE_32( ( error = front_vad_create_fx( &( hSpar->hFrontVad ), hEncoderConfig ) ), IVAS_ERR_OK ) )
     216             :             {
     217           0 :                 return error;
     218             :             }
     219             : 
     220          69 :             IF( ( hSpar->hCoreCoderVAD = (ENC_CORE_HANDLE) malloc( sizeof( Encoder_State ) ) ) == NULL )
     221             :             {
     222           0 :                 return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for CoreCoder structure\n" ) );
     223             :             }
     224             : 
     225          69 :             copy_encoder_config_fx( st_ivas, hSpar->hCoreCoderVAD, 1 );
     226             : 
     227          69 :             hSpar->hCoreCoderVAD->total_brate = hEncoderConfig->ivas_total_brate; /* dummy initialization for getting right pointers initialization of input buffers in init_coder_ace_plus() */
     228          69 :             hSpar->hCoreCoderVAD->mct_chan_mode = MCT_CHAN_MODE_IGNORE;
     229          69 :             move32();
     230          69 :             move32();
     231          69 :             IF( NE_32( ( error = init_encoder_ivas_fx( hSpar->hCoreCoderVAD, st_ivas, 0, hEncoderConfig->var_SID_rate_flag, hEncoderConfig->interval_SID, 1, st_ivas->ism_mode, hSpar->hCoreCoderVAD->total_brate ) ), IVAS_ERR_OK ) )
     232             :             {
     233           0 :                 return error;
     234             :             }
     235             :         }
     236             :         ELSE
     237             :         {
     238         210 :             hSpar->hCoreCoderVAD = NULL;
     239         210 :             hSpar->hFrontVad = NULL;
     240             :         }
     241             :     }
     242             : 
     243             :     /*-----------------------------------------------------------------*
     244             :      * Final assignment
     245             :      *-----------------------------------------------------------------*/
     246             : 
     247        1558 :     st_ivas->hSpar = hSpar;
     248             : 
     249        1558 :     return error;
     250             : }
     251             : /*-------------------------------------------------------------------------
     252             :  * ivas_spar_enc_close()
     253             :  *
     254             :  * Deallocate SPAR encoder handle
     255             :  *------------------------------------------------------------------------*/
     256             : 
     257        1903 : void ivas_spar_enc_close_fx(
     258             :     SPAR_ENC_HANDLE *hSpar,         /* i/o: SPAR encoder handle        */
     259             :     const Word32 input_Fs,          /* i  : input sampling rate        */
     260             :     const Word16 nchan_inp,         /* i  : number of input channels   */
     261             :     const Word16 spar_reconfig_flag /* i  : SPAR reconfiguration flag  */
     262             : )
     263             : {
     264             :     Word16 num_chans;
     265             : 
     266        1903 :     test();
     267        1903 :     IF( hSpar == NULL || *hSpar == NULL )
     268             :     {
     269         345 :         return;
     270             :     }
     271             : 
     272        1558 :     IF( !spar_reconfig_flag )
     273             :     {
     274             :         /* core-coder-VAD handle */
     275         279 :         IF( ( *hSpar )->hCoreCoderVAD != NULL )
     276             :         {
     277          69 :             destroy_core_enc_fx( ( *hSpar )->hCoreCoderVAD );
     278          69 :             ( *hSpar )->hCoreCoderVAD = NULL;
     279             :         }
     280             : 
     281             :         /* front-VAD handle */
     282         279 :         IF( ( *hSpar )->hFrontVad != NULL )
     283             :         {
     284          69 :             front_vad_destroy_fx( &( *hSpar )->hFrontVad );
     285          69 :             ( *hSpar )->hFrontVad = NULL;
     286             :         }
     287             :     }
     288             : 
     289        1558 :     num_chans = ( *hSpar )->hFbMixer->fb_cfg->num_in_chans;
     290        1558 :     move16();
     291        1558 :     assert( num_chans <= nchan_inp );
     292             : 
     293             :     /* MD handle */
     294        1558 :     ivas_spar_md_enc_close_fx( &( *hSpar )->hMdEnc );
     295             : 
     296             :     /* Covar. State handle */
     297        1558 :     ivas_spar_covar_enc_close_fx( &( *hSpar )->hCovEnc, num_chans );
     298             : 
     299             :     /* FB mixer handle */
     300        1558 :     ivas_FB_mixer_close_fx( &( *hSpar )->hFbMixer, input_Fs, spar_reconfig_flag );
     301             : 
     302             :     /* AGC */
     303        1558 :     ivas_spar_agc_enc_close_fx( &( *hSpar )->hAgcEnc );
     304             : 
     305             :     /* PCA */
     306        1558 :     IF( ( *hSpar )->hPCA != NULL )
     307             :     {
     308           4 :         free( ( *hSpar )->hPCA );
     309           4 :         ( *hSpar )->hPCA = NULL;
     310             :     }
     311             : 
     312        1558 :     IF( !spar_reconfig_flag )
     313             :     {
     314             :         /* Trans Det handle */
     315         279 :         ivas_transient_det_close_fx( &( *hSpar )->hTranDet );
     316         279 :         free( ( *hSpar ) );
     317         279 :         ( *hSpar ) = NULL;
     318             :     }
     319             : 
     320        1558 :     return;
     321             : }
     322             : 
     323             : 
     324             : /*-------------------------------------------------------------------*
     325             :  * ivas_spar_enc()
     326             :  *
     327             :  * Principal IVAS SPAR encoder routine
     328             :  *-------------------------------------------------------------------*/
     329             : 
     330      157500 : ivas_error ivas_spar_enc_fx(
     331             :     Encoder_Struct *st_ivas,  /* i/o: IVAS encoder structure              */
     332             :     Word32 *data_fx[],        /* i/o: input/transport audio channel Q11   */
     333             :     const Word16 input_frame, /* i  : input frame length                  */
     334             :     Word16 *nb_bits_metadata, /* i  : number of MD bits written           */
     335             :     BSTR_ENC_HANDLE hMetaData /* o  : MetaData handle                     */
     336             : )
     337             : {
     338             :     ENCODER_CONFIG_HANDLE hEncoderConfig;
     339             :     Encoder_State *st0; /* used for bitstream handling */
     340             :     ivas_error error;
     341      157500 :     error = IVAS_ERR_OK;
     342      157500 :     move32();
     343      157500 :     hEncoderConfig = st_ivas->hEncoderConfig;
     344             : 
     345      157500 :     IF( st_ivas->nSCE > 0 )
     346             :     {
     347       43891 :         st0 = st_ivas->hSCE[0]->hCoreCoder[0];
     348             :     }
     349             :     ELSE
     350             :     {
     351      113609 :         st0 = st_ivas->hCPE[0]->hCoreCoder[0];
     352             :     }
     353             : 
     354      157500 :     test();
     355      157500 :     test();
     356             :     /* Write SBA signaling bits */
     357      157500 :     IF( EQ_32( hEncoderConfig->ivas_format, SBA_FORMAT ) || ( EQ_32( hEncoderConfig->ivas_format, SBA_ISM_FORMAT ) && EQ_32( st_ivas->ism_mode, ISM_SBA_MODE_DISC ) ) )
     358             :     {
     359             :         /* Write SBA planar flag */
     360      138810 :         push_indice( st0->hBstr, IND_SMODE, hEncoderConfig->sba_planar, SBA_PLANAR_BITS );
     361             : 
     362             :         /* Write SBA order */
     363      138810 :         push_indice( st0->hBstr, IND_SMODE, hEncoderConfig->sba_order, SBA_ORDER_BITS );
     364             :     }
     365             :     ELSE /* ism_mode == ISM_MODE_NONE */
     366             :     {
     367       18690 :         IF( LT_32( hEncoderConfig->ivas_total_brate, IVAS_24k4 ) )
     368             :         {
     369             :             /* Write SBA planar flag */
     370        2651 :             push_indice( st0->hBstr, IND_SMODE, hEncoderConfig->sba_planar, SBA_PLANAR_BITS );
     371             : 
     372             :             /* hack to indicate OSBA bitstream at VLBR */
     373        2651 :             push_indice( st0->hBstr, IND_SMODE, 0, SBA_ORDER_BITS );
     374             :         }
     375             :         ELSE
     376             :         {
     377             :             /* Write SBA order */
     378       16039 :             push_indice( st0->hBstr, IND_SMODE, hEncoderConfig->sba_order, SBA_ORDER_BITS );
     379             :         }
     380             :     }
     381             : 
     382      157500 :     IF( EQ_32( hEncoderConfig->ivas_format, SBA_ISM_FORMAT ) )
     383             :     {
     384             :         /* write the number of objects in ISM_SBA format*/
     385       35000 :         push_indice( hMetaData, IND_ISM_NUM_OBJECTS, hEncoderConfig->nchan_ism - 1, NO_BITS_MASA_ISM_NO_OBJ );
     386             :     }
     387             :     /* front VAD */
     388      157500 :     IF( NE_32( ( error = front_vad_spar_fx( st_ivas->hSpar, data_fx[0], hEncoderConfig, input_frame ) ), IVAS_ERR_OK ) )
     389             :     {
     390           0 :         return error;
     391             :     }
     392             : 
     393      157500 :     IF( hEncoderConfig->sba_planar )
     394             :     {
     395       10250 :         ivas_sba_zero_vert_comp_fx( data_fx, st_ivas->sba_analysis_order, hEncoderConfig->sba_planar, input_frame );
     396             :     }
     397             : 
     398             :     /* SPAR encoder */
     399      157500 :     IF( NE_32( ( error = ivas_spar_enc_process_fx( st_ivas, hEncoderConfig, hMetaData, st_ivas->hSpar->front_vad_flag, data_fx, st_ivas->q_data_fx ) ), IVAS_ERR_OK ) )
     400             :     {
     401           0 :         return error;
     402             :     }
     403             : 
     404      157500 :     *nb_bits_metadata = hMetaData->nb_bits_tot;
     405      157500 :     move16();
     406             : 
     407      157500 :     test();
     408             :     /* Force IVAS front pre-proc decision for higher bitrates */
     409      157500 :     if ( GT_32( hEncoderConfig->ivas_total_brate, SBA_DTX_BITRATE_THRESHOLD ) || hEncoderConfig->Opt_DTX_ON == 0 )
     410             :     {
     411      139710 :         st_ivas->hSpar->front_vad_flag = 0;
     412      139710 :         move16();
     413             :     }
     414             : 
     415      157500 :     return error;
     416             : }
     417             : 
     418             : 
     419             : /*-------------------------------------------------------------------*
     420             :  * ivas_spar_cov_md_process()
     421             :  *
     422             :  * Process call for SPAR covariance and MD encoder
     423             :  *-------------------------------------------------------------------*/
     424             : 
     425      157500 : static ivas_error ivas_spar_cov_md_process_fx(
     426             :     const ENCODER_CONFIG_HANDLE hEncoderConfig,
     427             :     SPAR_ENC_HANDLE hSpar,
     428             :     const IVAS_QMETADATA_HANDLE hQMetaData,
     429             :     BSTR_ENC_HANDLE hMetaData,
     430             :     const Word16 nchan_inp,
     431             :     const Word16 sba_order,
     432             :     Word32 *ppIn_FR_real_fx[IVAS_SPAR_MAX_CH], // q_ppIn_FR
     433             :     Word32 *ppIn_FR_imag_fx[IVAS_SPAR_MAX_CH], // q_ppIn_FR
     434             :     const Word16 transient_det[2],
     435             :     const Word16 dtx_vad,
     436             :     const Word16 nchan_transport,
     437             :     Word16 *dyn_active_w_flag,
     438             :     Word16 q_ppIn_FR )
     439             : {
     440             :     Word16 i, j, i_ts, b, table_idx;
     441             :     Word16 active_w_vlbr;
     442             :     /* note: the actual dimensions of matrixes correspond to num_channels = ivas_sba_get_nchan_metadata( sba_order, ivas_total_brate ); */
     443             :     Word32 *cov_real_fx[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH];
     444             :     Word32 *cov_dtx_real_fx[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH];
     445             :     Word16 *q_cov_real[IVAS_SPAR_MAX_CH];
     446             :     Word16 *q_cov_dtx_real[IVAS_SPAR_MAX_CH];
     447             :     Word32 cov_real_buf_fx[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH][IVAS_MAX_NUM_BANDS];
     448             :     Word32 cov_dtx_real_buf_fx[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH][IVAS_MAX_NUM_BANDS];
     449             :     ivas_error error;
     450             : 
     451      157500 :     error = IVAS_ERR_OK;
     452      157500 :     move32();
     453             : 
     454      157500 :     IF( LT_32( hEncoderConfig->ivas_total_brate, IVAS_24k4 ) )
     455             :     {
     456       13323 :         active_w_vlbr = 1;
     457       13323 :         move16();
     458             :     }
     459             :     ELSE
     460             :     {
     461      144177 :         active_w_vlbr = 0;
     462      144177 :         move16();
     463             :     }
     464             : 
     465             :     /*-----------------------------------------------------------------------------------------*
     466             :      * Set SPAR bitrates
     467             :      *-----------------------------------------------------------------------------------------*/
     468             : 
     469      157500 :     table_idx = ivas_get_spar_table_idx_fx( hEncoderConfig->ivas_total_brate, sba_order, SPAR_CONFIG_BW, NULL, NULL );
     470             : 
     471      157500 :     IF( NE_16( hSpar->hMdEnc->table_idx, table_idx ) )
     472             :     {
     473        1861 :         hSpar->hMdEnc->table_idx = table_idx;
     474        1861 :         move16();
     475        1861 :         test();
     476        1861 :         IF( NE_32( hEncoderConfig->ivas_total_brate, hEncoderConfig->last_ivas_total_brate ) && !hSpar->spar_reconfig_flag )
     477             :         {
     478         303 :             IF( NE_32( ( error = ivas_spar_md_enc_init_fx( hSpar->hMdEnc, hEncoderConfig, sba_order ) ), IVAS_ERR_OK ) )
     479             :             {
     480           0 :                 return error;
     481             :             }
     482             :         }
     483             :         ELSE
     484             :         {
     485        1558 :             Word16 num_bands = SPAR_DIRAC_SPLIT_START_BAND;
     486        1558 :             move16();
     487        1558 :             if ( hSpar->hMdEnc->spar_hoa_md_flag != 0 )
     488             :             {
     489         259 :                 num_bands = IVAS_MAX_NUM_BANDS;
     490         259 :                 move16();
     491             :             }
     492        1558 :             ivas_spar_set_bitrate_config_fx( &hSpar->hMdEnc->spar_md_cfg, table_idx, num_bands, hSpar->hMdEnc->spar_hoa_dirac2spar_md_flag, 1, hEncoderConfig->Opt_PCA_ON, hSpar->AGC_Enable );
     493             :         }
     494             :     }
     495             : 
     496             :     /*-----------------------------------------------------------------------------------------*
     497             :      * Covariance process
     498             :      *-----------------------------------------------------------------------------------------*/
     499      889700 :     FOR( i = 0; i < nchan_inp; i++ )
     500             :     {
     501     4628660 :         FOR( j = 0; j < nchan_inp; j++ )
     502             :         {
     503     3896460 :             cov_real_fx[i][j] = cov_real_buf_fx[i][j];
     504     3896460 :             cov_dtx_real_fx[i][j] = cov_dtx_real_buf_fx[i][j];
     505     4320460 :             FOR( b = hSpar->hFbMixer->pFb->filterbank_num_bands; b < IVAS_MAX_NUM_BANDS; b++ )
     506             :             {
     507      424000 :                 cov_real_fx[i][j][b] = 0;
     508      424000 :                 move32();
     509      424000 :                 cov_dtx_real_fx[i][j][b] = 0;
     510      424000 :                 move32();
     511             :             }
     512             :         }
     513      732200 :         IF( ( q_cov_real[i] = (Word16 *) malloc( sizeof( Word16 ) * nchan_inp ) ) == NULL )
     514             :         {
     515           0 :             return IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for SPAR COV encoder Fixed" );
     516             :         }
     517      732200 :         set16_fx( q_cov_real[i], Q31, nchan_inp );
     518      732200 :         IF( ( q_cov_dtx_real[i] = (Word16 *) malloc( sizeof( Word16 ) * nchan_inp ) ) == NULL )
     519             :         {
     520           0 :             return IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for SPAR COV encoder Fixed" );
     521             :         }
     522      732200 :         set16_fx( q_cov_dtx_real[i], Q31, nchan_inp );
     523             :     }
     524             : 
     525      157500 :     ivas_enc_cov_handler_process_fx( hSpar->hCovEnc, ppIn_FR_real_fx, ppIn_FR_imag_fx, q_ppIn_FR, cov_real_fx, q_cov_real, cov_dtx_real_fx, q_cov_dtx_real, hSpar->hFbMixer->pFb, 0, hSpar->hFbMixer->pFb->filterbank_num_bands, nchan_inp, dtx_vad, transient_det, hSpar->hMdEnc->HOA_md_ind,
     526      157500 :                                      &hSpar->hMdEnc->spar_md.res_ind, remix_order_set[hSpar->hMdEnc->spar_md_cfg.remix_unmix_order], dyn_active_w_flag, nchan_transport, 1 );
     527             : 
     528      889700 :     FOR( i = 0; i < nchan_inp; i++ )
     529             :     {
     530      732200 :         free( q_cov_real[i] );
     531      732200 :         q_cov_real[i] = NULL;
     532      732200 :         free( q_cov_dtx_real[i] );
     533      732200 :         q_cov_dtx_real[i] = NULL;
     534             :     }
     535      157500 :     test();
     536      157500 :     IF( GT_16( nchan_transport, 1 ) && LE_16( nchan_transport, ( FOA_CHANNELS - 1 ) ) )
     537             :     {
     538       72649 :         push_next_indice( hMetaData, *dyn_active_w_flag, 1 );
     539       72649 :         test();
     540       72649 :         IF( EQ_16( *dyn_active_w_flag, 1 ) && EQ_16( nchan_transport, 2 ) )
     541             :         {
     542           0 :             push_next_indice( hMetaData, sub( hSpar->hMdEnc->spar_md.res_ind, nchan_transport ), 1 );
     543             :         }
     544       72649 :         IF( EQ_16( *dyn_active_w_flag, 1 ) )
     545             :         {
     546           0 :             hSpar->front_vad_flag = 1;
     547           0 :             move16();
     548             :         }
     549             :         ELSE
     550             :         {
     551       72649 :             hSpar->front_vad_flag = hSpar->front_vad_flag;
     552       72649 :             move16();
     553             :         }
     554             :     }
     555             :     ELSE
     556             :     {
     557       84851 :         IF( EQ_16( nchan_transport, FOA_CHANNELS ) )
     558             :         {
     559       40960 :             push_next_indice( hMetaData, 0, 1 );
     560             :         }
     561             :     }
     562             : 
     563             :     /*-----------------------------------------------------------------------------------------*
     564             :      * MetaData encoder
     565             :      *-----------------------------------------------------------------------------------------*/
     566             : 
     567      157500 :     IF( hSpar->hMdEnc->spar_hoa_md_flag == 0 )
     568             :     {
     569      135460 :         IF( NE_32( ( error = ivas_spar_md_enc_process_fx( hSpar->hMdEnc, hEncoderConfig, cov_real_fx, hSpar->hCovEnc->pCov_state->q_cov_real_per_band, cov_dtx_real_fx, hSpar->hCovEnc->pCov_dtx_state->q_cov_real_per_band, hMetaData, dtx_vad, nchan_inp, sba_order, hSpar->hFbMixer->prior_mixer_fx, &hSpar->hFbMixer->q_prior_mixer_fx, *dyn_active_w_flag, hQMetaData->dirac_mono_flag, hSpar->hFbMixer->fb_cfg->num_out_chans ) ), IVAS_ERR_OK ) )
     570             :         {
     571           0 :             return error;
     572             :         }
     573             :     }
     574             : 
     575      157500 :     IF( hSpar->hMdEnc->spar_hoa_dirac2spar_md_flag )
     576             :     {
     577             :         Word16 order;
     578             :         Word32 azi_dirac_fx[IVAS_MAX_NUM_BANDS][MAX_PARAM_SPATIAL_SUBFRAMES];
     579             :         Word32 ele_dirac_fx[IVAS_MAX_NUM_BANDS][MAX_PARAM_SPATIAL_SUBFRAMES];
     580             :         Word32 diffuseness_fx[IVAS_MAX_NUM_BANDS];
     581             :         Word32 Wscale_d_fx[IVAS_MAX_NUM_BANDS];
     582             :         Word16 d_start_band, d_end_band;
     583             :         Word16 dirac_band_idx;
     584             : 
     585      147560 :         d_start_band = hSpar->enc_param_start_band;
     586      147560 :         move16();
     587      147560 :         d_end_band = IVAS_MAX_NUM_BANDS;
     588      147560 :         move16();
     589             : 
     590      788200 :         FOR( b = d_start_band; b < d_end_band; b++ )
     591             :         {
     592      640640 :             dirac_band_idx = sub( hSpar->dirac_to_spar_md_bands[b], d_start_band );
     593     3043324 :             FOR( i_ts = 0; i_ts < hQMetaData->q_direction->cfg.nblocks; i_ts++ )
     594             :             {
     595     2402684 :                 azi_dirac_fx[b][i_ts] = hQMetaData->q_direction->band_data[dirac_band_idx].azimuth_fx[i_ts];
     596     2402684 :                 move32();
     597     2402684 :                 ele_dirac_fx[b][i_ts] = hQMetaData->q_direction->band_data[dirac_band_idx].elevation_fx[i_ts];
     598     2402684 :                 move32();
     599             :             }
     600      640640 :             diffuseness_fx[b] = L_sub( ONE_IN_Q30, hQMetaData->q_direction->band_data[dirac_band_idx].energy_ratio_fx[0] );
     601      640640 :             move32();
     602             :         }
     603      147560 :         test();
     604      147560 :         IF( GE_16( d_start_band, 6 ) && EQ_16( dtx_vad, 1 ) )
     605             :         {
     606      137897 :             Copy32( hSpar->hMdEnc->spar_md.band_coeffs[d_start_band - 1].P_quant_re_fx, hSpar->hMdEnc->spar_md.band_coeffs[d_start_band - 1].P_re_fx, IVAS_SPAR_MAX_CH - 1 );
     607             :         }
     608             : 
     609      788200 :         FOR( b = d_start_band; b < d_end_band; b++ )
     610             :         {
     611      640640 :             Word16 tmp_e, Wscale_d_e = 0;
     612      640640 :             move16();
     613      640640 :             Wscale_d_fx[b] = ONE_IN_Q31;
     614      640640 :             move32();
     615     2843120 :             FOR( i = 1; i < nchan_inp; i++ )
     616             :             {
     617     2202480 :                 Word32 tmp = 0;
     618     2202480 :                 move32();
     619     2202480 :                 tmp_e = 0;
     620     2202480 :                 move16();
     621     2202480 :                 IF( cov_real_fx[0][0][b] != 0 )
     622             :                 {
     623     2096960 :                     tmp = L_deposit_h( BASOP_Util_Divide3232_Scale( cov_real_fx[i][i][b], cov_real_fx[0][0][b], &tmp_e ) );
     624     2096960 :                     tmp_e = add( tmp_e, sub( sub( Q31, hSpar->hCovEnc->pCov_state->q_cov_real_per_band[i][i][b] ), sub( Q31, hSpar->hCovEnc->pCov_state->q_cov_real_per_band[0][0][b] ) ) );
     625             :                 }
     626     2202480 :                 Wscale_d_fx[b] = BASOP_Util_Add_Mant32Exp( tmp, tmp_e, Wscale_d_fx[b], Wscale_d_e, &Wscale_d_e );
     627     2202480 :                 move32();
     628             :             }
     629      640640 :             Wscale_d_fx[b] = L_deposit_h( BASOP_Util_Divide3232_Scale( Wscale_d_fx[b], L_add( 1, sba_order ), &tmp_e ) );
     630      640640 :             move32();
     631      640640 :             tmp_e = add( tmp_e, sub( Wscale_d_e, Q31 ) );
     632      640640 :             Wscale_d_fx[b] = Sqrt32( Wscale_d_fx[b], &tmp_e );
     633      640640 :             move32();
     634      640640 :             Wscale_d_fx[b] = L_shl_sat( Wscale_d_fx[b], sub( tmp_e, Q2 ) ); // saturating to Q29, as final value is limited to 2 below
     635      640640 :             move32();
     636      640640 :             Wscale_d_fx[b] = L_min( ONE_IN_Q30, L_max( Wscale_d_fx[b], ONE_IN_Q29 ) ); // Q29
     637      640640 :             move32();
     638             :         }
     639             : 
     640      147560 :         IF( hSpar->hMdEnc->spar_hoa_md_flag == 0 )
     641             :         {
     642      135460 :             order = sba_order;
     643      135460 :             move16();
     644             :         }
     645             :         ELSE
     646             :         {
     647       12100 :             order = 1;
     648       12100 :             move16();
     649             :         }
     650      147560 :         ivas_get_spar_md_from_dirac_enc_fx( azi_dirac_fx, ele_dirac_fx, diffuseness_fx, 1, hSpar->hMdEnc->mixer_mat_fx, &hSpar->hMdEnc->q_mixer_mat_fx, &hSpar->hMdEnc->spar_md, &hSpar->hMdEnc->spar_md_cfg, d_start_band, d_end_band, order, dtx_vad, Wscale_d_fx, hQMetaData->useLowerRes, active_w_vlbr, *dyn_active_w_flag );
     651             :     }
     652             : 
     653      157500 :     IF( hSpar->hMdEnc->spar_hoa_md_flag )
     654             :     {
     655       22040 :         error = ivas_spar_md_enc_process_fx( hSpar->hMdEnc, hEncoderConfig, cov_real_fx, hSpar->hCovEnc->pCov_state->q_cov_real_per_band, cov_dtx_real_fx, hSpar->hCovEnc->pCov_dtx_state->q_cov_real_per_band, hMetaData, dtx_vad, nchan_inp, sba_order, hSpar->hFbMixer->prior_mixer_fx, &hSpar->hFbMixer->q_prior_mixer_fx, *dyn_active_w_flag, hQMetaData->dirac_mono_flag, hSpar->hFbMixer->fb_cfg->num_out_chans );
     656             :     }
     657             : 
     658      157500 :     return error;
     659             : }
     660             : 
     661             : 
     662             : /*-----------------------------------------------------------------------------------------*
     663             :  * Function ivas_spar_enc_process()
     664             :  *
     665             :  * Process call for SPAR encoder
     666             :  *-----------------------------------------------------------------------------------------*/
     667             : 
     668      157500 : static ivas_error ivas_spar_enc_process_fx(
     669             :     Encoder_Struct *st_ivas,                    /* i/o: IVAS encoder structure          */
     670             :     const ENCODER_CONFIG_HANDLE hEncoderConfig, /* i  : configuration structure         */
     671             :     BSTR_ENC_HANDLE hMetaData,                  /* i/o: MetaData handle                 */
     672             :     const Word16 front_vad_flag,                /* i  : front-VAD decision              */
     673             :     Word32 *data_fx[],                          /* i/o: input/transport audio channels Q(q_data) */
     674             :     const Word16 q_data )
     675             : {
     676             :     Word32 pcm_tmp_fx[DIRAC_MAX_ANA_CHANS][L_FRAME48k * 2];
     677             :     Word32 *p_pcm_tmp_fx[DIRAC_MAX_ANA_CHANS];
     678             :     Word16 q_pcm_fx[DIRAC_MAX_ANA_CHANS];
     679             :     Word16 q_p_pcm_tmp_fx[DIRAC_MAX_ANA_CHANS];
     680             :     Word16 i, j, input_frame, dtx_vad;
     681             :     Word16 transient_det[2];
     682             :     Word16 hodirac_flag;
     683             :     Word32 ivas_total_brate, input_Fs;
     684             :     Word16 nchan_inp, sba_order, nchan_transport;
     685             :     Word16 in_out_mixer_map[IVAS_MAX_FB_MIXER_OUT_CH][IVAS_MAX_SPAR_FB_MIXER_IN_CH];
     686             :     ivas_error error;
     687             :     const Word16 *order;
     688      157500 :     SPAR_ENC_HANDLE hSpar = st_ivas->hSpar;
     689      157500 :     IVAS_QMETADATA_HANDLE hQMetaData = st_ivas->hQMetaData;
     690             :     Word16 ts, l_ts, num_del_samples, b, i_ts;
     691             : 
     692             :     Word32 *ppIn_FR_real_fx[IVAS_SPAR_MAX_CH], *ppIn_FR_imag_fx[IVAS_SPAR_MAX_CH];
     693             :     Word32 wyzx_del_buf[FOA_CHANNELS][IVAS_FB_1MS_48K_SAMP];
     694             :     Word16 dyn_active_w_flag;
     695             :     Word16 nchan_fb_in;
     696             : 
     697      157500 :     push_wmops( "ivas_spar_enc_process" );
     698             : 
     699             :     /*-----------------------------------------------------------------------------------------*
     700             :      * Initialization
     701             :      *-----------------------------------------------------------------------------------------*/
     702             : 
     703      157500 :     error = IVAS_ERR_OK;
     704      157500 :     move32();
     705             : 
     706      157500 :     input_Fs = hEncoderConfig->input_Fs;
     707      157500 :     move32();
     708      157500 :     ivas_total_brate = hEncoderConfig->ivas_total_brate;
     709      157500 :     move32();
     710      157500 :     num_del_samples = hSpar->hFbMixer->fb_cfg->fb_latency;
     711      157500 :     move16();
     712             : 
     713             :     Word32 res_dec, res_frac;
     714      157500 :     iDiv_and_mod_32( input_Fs, FRAMES_PER_SEC, &res_dec, &res_frac, 0 );
     715      157500 :     input_frame = extract_l( res_dec );
     716             : 
     717      157500 :     sba_order = s_min( st_ivas->sba_analysis_order, IVAS_MAX_SBA_ORDER );
     718      157500 :     nchan_inp = ivas_sba_get_nchan_metadata_fx( sba_order, hEncoderConfig->ivas_total_brate );
     719      157500 :     assert( nchan_inp <= hEncoderConfig->nchan_inp );
     720             : 
     721      157500 :     nchan_fb_in = hSpar->hFbMixer->fb_cfg->nchan_fb_in;
     722      157500 :     move16();
     723      157500 :     nchan_transport = st_ivas->nchan_transport;
     724      157500 :     move16();
     725             : 
     726      273960 :     FOR( i = FOA_CHANNELS + 1; i < nchan_fb_in; i++ )
     727             :     {
     728      116460 :         Copy32( data_fx[HOA_keep_ind[i]], data_fx[i], input_frame );
     729             :     }
     730             :     /*-----------------------------------------------------------------------------------------*
     731             :      * Transient detector
     732             :      *-----------------------------------------------------------------------------------------*/
     733      157500 :     ivas_transient_det_process_fx( hSpar->hTranDet, data_fx[0], input_frame, transient_det );
     734             : 
     735             : #ifdef DEBUGGING
     736             :     {
     737             :         float a[2];
     738             :         a[0] = transient_det[0];
     739             :         a[1] = transient_det[1];
     740             :         dbgwrite_txt( a, 2, "fixed.txt", NULL );
     741             :     }
     742             : #endif
     743             : 
     744      157500 :     if ( LT_32( ivas_total_brate, IVAS_24k4 ) )
     745             :     {
     746       13323 :         transient_det[1] = 0;
     747       13323 :         move16();
     748             :     }
     749             : 
     750             :     /* store previous input samples for W in local buffer */
     751      157500 :     assert( num_del_samples <= IVAS_FB_1MS_48K_SAMP );
     752      157500 :     IF( hSpar->hFbMixer->fb_cfg->active_w_mixing == 0 )
     753             :     {
     754             :         /* fill delay (1 ms) buffer for all Transport channels */
     755      568045 :         FOR( i = 0; i < FOA_CHANNELS; i++ )
     756             :         {
     757      454436 :             Word16 idx = hSpar->hFbMixer->fb_cfg->remix_order[i];
     758      454436 :             move16();
     759      454436 :             Copy32( &hSpar->hFbMixer->ppFilterbank_prior_input_fx[idx][hSpar->hFbMixer->fb_cfg->prior_input_length - num_del_samples], wyzx_del_buf[idx], num_del_samples );
     760             :         }
     761             :     }
     762             : 
     763             :     /*-----------------------------------------------------------------------------------------*
     764             :      * FB mixer ingest
     765             :      *-----------------------------------------------------------------------------------------*/
     766      926000 :     FOR( i = 0; i < nchan_fb_in; i++ )
     767             :     {
     768      768500 :         p_pcm_tmp_fx[i] = pcm_tmp_fx[i];
     769             :     }
     770             : 
     771             :     /* run Filter Bank overlapping MDFT analysis first, then we can use the temporary buffer for Parameter MDFT analysis*/
     772      157500 :     ivas_fb_mixer_pcm_ingest_fx( hSpar->hFbMixer, data_fx, p_pcm_tmp_fx, input_frame, hSpar->hMdEnc->HOA_md_ind, q_data, q_p_pcm_tmp_fx );
     773      889700 :     FOR( i = 0; i < hSpar->hFbMixer->fb_cfg->num_in_chans; i++ )
     774             :     {
     775             :         /* changing q format to q_data*/
     776      732200 :         scale_sig32( p_pcm_tmp_fx[i], shl( input_frame, 1 ), sub( q_data, q_p_pcm_tmp_fx[i] ) ); // q_data
     777             :     }
     778             : 
     779             :     /* prepare Parameter MDFT analysis */
     780      157500 :     Word16 shift = Q31;
     781      157500 :     move16();
     782      926000 :     FOR( i = 0; i < nchan_fb_in; i++ )
     783             :     {
     784      768500 :         ppIn_FR_real_fx[i] = p_pcm_tmp_fx[i];
     785      768500 :         ppIn_FR_imag_fx[i] = p_pcm_tmp_fx[i] + input_frame;
     786      768500 :         p_pcm_tmp_fx[i] = data_fx[i];
     787      768500 :         shift = s_min( shift, L_norm_arr( hSpar->hFbMixer->ppFilterbank_prior_input_fx[i], hSpar->hFbMixer->fb_cfg->prior_input_length ) );
     788      768500 :         shift = s_min( shift, L_norm_arr( data_fx[i], input_frame ) );
     789             :     }
     790             : 
     791      157500 :     l_ts = idiv1616( input_frame, MAX_PARAM_SPATIAL_SUBFRAMES );
     792             : 
     793      157500 :     Word16 gb = find_guarded_bits_fx( l_ts );
     794      787500 :     FOR( ts = 0; ts < MAX_PARAM_SPATIAL_SUBFRAMES; ts++ )
     795             :     {
     796     3704000 :         FOR( i = 0; i < nchan_fb_in; i++ )
     797             :         {
     798     3074000 :             scale_sig32( data_fx[i], input_frame, shift );                                                                      // Q:q_data+shift
     799     3074000 :             scale_sig32( hSpar->hFbMixer->ppFilterbank_prior_input_fx[i], hSpar->hFbMixer->fb_cfg->prior_input_length, shift ); // Q:q_data+shift
     800             :         }
     801      630000 :         ivas_fb_mixer_get_windowed_fr_fx( hSpar->hFbMixer, p_pcm_tmp_fx, ppIn_FR_real_fx, ppIn_FR_imag_fx, l_ts, l_ts, nchan_fb_in, gb );
     802     3704000 :         FOR( i = 0; i < nchan_fb_in; i++ )
     803             :         {
     804     3074000 :             scale_sig32( data_fx[i], input_frame, negate( shift ) );                                                                      // Q:q_data
     805     3074000 :             scale_sig32( hSpar->hFbMixer->ppFilterbank_prior_input_fx[i], hSpar->hFbMixer->fb_cfg->prior_input_length, negate( shift ) ); // Q:q_data
     806             :         }
     807      630000 :         ivas_fb_mixer_update_prior_input_fx( hSpar->hFbMixer, p_pcm_tmp_fx, l_ts, nchan_fb_in );
     808             : 
     809     3704000 :         FOR( i = 0; i < nchan_fb_in; i++ )
     810             :         {
     811     3074000 :             p_pcm_tmp_fx[i] += l_ts;
     812     3074000 :             ppIn_FR_real_fx[i] += l_ts;
     813     3074000 :             ppIn_FR_imag_fx[i] += l_ts;
     814     3074000 :             q_p_pcm_tmp_fx[i] = sub( q_data, gb ); // updating the q for p_pcm
     815     3074000 :             move16();
     816             :         }
     817             :     }
     818             : 
     819             :     /* turn pointers back to the local buffer, needed for the following processing */
     820      926000 :     FOR( i = 0; i < nchan_fb_in; i++ )
     821             :     {
     822      768500 :         ppIn_FR_real_fx[i] = pcm_tmp_fx[i];
     823      768500 :         ppIn_FR_imag_fx[i] = pcm_tmp_fx[i] + input_frame;
     824      768500 :         p_pcm_tmp_fx[i] = pcm_tmp_fx[i];
     825             :     }
     826      157500 :     IF( EQ_16( hEncoderConfig->Opt_DTX_ON, 1 ) )
     827             :     {
     828       18000 :         dtx_vad = front_vad_flag;
     829       18000 :         move16();
     830             :     }
     831             :     ELSE
     832             :     {
     833      139500 :         dtx_vad = 1;
     834      139500 :         move16();
     835             :     }
     836             : 
     837             :     /*-----------------------------------------------------------------------------------------*
     838             :      * DirAC encoding
     839             :      *-----------------------------------------------------------------------------------------*/
     840             : 
     841      157500 :     hodirac_flag = ivas_get_hodirac_flag_fx( ivas_total_brate, st_ivas->sba_analysis_order );
     842             : 
     843             :     /*Finding max possible q*/
     844             :     Word16 pp_fr_q;
     845      157500 :     pp_fr_q = sub( add( q_data, shift ), gb );
     846      157500 :     Word16 re_q = MAX_16, im_q = MAX_16, FR_q;
     847      157500 :     move16();
     848      157500 :     move16();
     849      926000 :     FOR( i = 0; i < nchan_fb_in; i++ )
     850             :     {
     851      768500 :         re_q = s_min( re_q, L_norm_arr( ppIn_FR_real_fx[i], input_frame ) );
     852      768500 :         im_q = s_min( im_q, L_norm_arr( ppIn_FR_imag_fx[i], input_frame ) );
     853             :     }
     854      157500 :     FR_q = s_min( re_q, im_q );
     855      926000 :     FOR( i = 0; i < nchan_fb_in; i++ )
     856             :     {
     857      768500 :         scale_sig32( ppIn_FR_real_fx[i], input_frame, FR_q ); // Q(FR_q+pp_fr_q)
     858      768500 :         scale_sig32( ppIn_FR_imag_fx[i], input_frame, FR_q ); // Q(FR_q+pp_fr_q)
     859             :     }
     860      157500 :     pp_fr_q = add( FR_q, pp_fr_q );
     861             : 
     862      157500 :     IF( NE_32( ( error = ivas_dirac_enc_fx( st_ivas->hDirAC, hQMetaData, hMetaData, data_fx, ppIn_FR_real_fx, ppIn_FR_imag_fx, pp_fr_q, input_frame, dtx_vad, hEncoderConfig->ivas_format, hodirac_flag, shift ) ), IVAS_ERR_OK ) )
     863             :     {
     864           0 :         return error;
     865             :     }
     866             : 
     867             :     /* Set Energy Ratio to 0.0 if the mono flag has been set */
     868      157500 :     IF( hQMetaData->dirac_mono_flag )
     869             :     {
     870           0 :         FOR( b = hQMetaData->q_direction->cfg.start_band; b < hQMetaData->q_direction->cfg.nbands; b++ )
     871             :         {
     872           0 :             Word16 loop_count = 1;
     873           0 :             move16();
     874           0 :             IF( EQ_16( dtx_vad, 1 ) )
     875             :             {
     876           0 :                 loop_count = hQMetaData->q_direction[0].cfg.nblocks;
     877           0 :                 move16();
     878             :             }
     879           0 :             FOR( i_ts = 0; i_ts < loop_count; i_ts++ )
     880             :             {
     881           0 :                 hQMetaData->q_direction[0].band_data[b].energy_ratio_fx[i_ts] = 0;
     882           0 :                 move32();
     883             :             }
     884             :         }
     885             :     }
     886             : 
     887             :     /*-----------------------------------------------------------------------------------------*
     888             :      * Covariance and MD processing
     889             :      *-----------------------------------------------------------------------------------------*/
     890      157500 :     IF( NE_32( ( error = ivas_spar_cov_md_process_fx( hEncoderConfig, st_ivas->hSpar, st_ivas->hQMetaData, hMetaData, nchan_inp, sba_order, ppIn_FR_real_fx, ppIn_FR_imag_fx, transient_det, dtx_vad, nchan_transport, &dyn_active_w_flag, pp_fr_q ) ), IVAS_ERR_OK ) )
     891             :     {
     892           0 :         return error;
     893             :     }
     894             : 
     895      157500 :     set16_fx( q_p_pcm_tmp_fx, pp_fr_q, nchan_fb_in );
     896             :     /*-----------------------------------------------------------------------------------------*
     897             :      * FB mixer
     898             :      *-----------------------------------------------------------------------------------------*/
     899             : 
     900      157500 :     ivas_fb_mixer_get_in_out_mapping_fx( hSpar->hFbMixer->fb_cfg, in_out_mixer_map );
     901             : 
     902             : #ifdef DEBUG_SPAR_DIRAC_WRITE_OUT_PRED_PARS
     903             :     {
     904             :         static FILE *fid = 0;
     905             :         int16_t band = 9;
     906             :         if ( !fid )
     907             :         {
     908             :             fid = fopen( "pred_coeffs_enc.txt", "wt" );
     909             :         }
     910             :         fprintf( fid, "%.6f\n", hSpar->hMdEnc->mixer_mat[1][0][band] );
     911             :     }
     912             : #endif
     913             : 
     914      157500 :     ivas_fb_mixer_process_fx( hSpar->hFbMixer, hSpar->hMdEnc->mixer_mat_fx, &hSpar->hMdEnc->q_mixer_mat_fx, p_pcm_tmp_fx, q_p_pcm_tmp_fx, input_frame, in_out_mixer_map );
     915             : 
     916      429399 :     FOR( Word32 ch = ( hSpar->hFbMixer->fb_cfg->active_w_mixing == 0 ); ch < hSpar->hFbMixer->fb_cfg->num_out_chans; ch++ )
     917             :     {
     918             :         /* changing q format to q_data*/
     919      271899 :         scale_sig32( p_pcm_tmp_fx[ch], input_frame, sub( q_data, q_p_pcm_tmp_fx[ch] ) ); // q_data
     920      271899 :         q_p_pcm_tmp_fx[ch] = q_data;
     921      271899 :         move16();
     922             :     }
     923      157500 :     IF( hSpar->hFbMixer->fb_cfg->active_w_mixing == 0 )
     924             :     {
     925             :         /*cross fade between new active W channels and old passive W channel*/
     926      113609 :         IF( EQ_16( dyn_active_w_flag, 1 ) )
     927             :         {
     928           0 :             IF( NE_16( hSpar->hMdEnc->spar_md.prior_dyn_active_w_flag, dyn_active_w_flag ) )
     929             :             {
     930             :                 Word32 new_w[L_FRAME48k];
     931             :                 /* delayed W */
     932           0 :                 Copy32( wyzx_del_buf[0], p_pcm_tmp_fx[0], num_del_samples );
     933           0 :                 Copy32( data_fx[0], p_pcm_tmp_fx[0] + num_del_samples, sub( input_frame, num_del_samples ) );
     934             : 
     935           0 :                 Copy32( wyzx_del_buf[hSpar->hMdEnc->spar_md.res_ind], new_w, num_del_samples );
     936           0 :                 Copy32( data_fx[hSpar->hMdEnc->spar_md.res_ind], &new_w[num_del_samples], sub( input_frame, num_del_samples ) );
     937             : 
     938           0 :                 test();
     939           0 :                 test();
     940           0 :                 IF( hSpar->hMdEnc->spar_md.prior_dyn_active_w_flag == 0 && EQ_16( dyn_active_w_flag, 1 ) )
     941             :                 {
     942           0 :                     ivas_fb_mixer_cross_fading_fx( hSpar->hFbMixer, p_pcm_tmp_fx, p_pcm_tmp_fx[0], new_w, 0, input_frame, 0 );
     943             :                 }
     944           0 :                 ELSE IF( EQ_16( hSpar->hMdEnc->spar_md.prior_dyn_active_w_flag, 1 ) && dyn_active_w_flag == 0 )
     945             :                 {
     946           0 :                     ivas_fb_mixer_cross_fading_fx( hSpar->hFbMixer, p_pcm_tmp_fx, new_w, p_pcm_tmp_fx[0], 0, input_frame, 0 );
     947             :                 }
     948             :             }
     949             :             ELSE
     950             :             {
     951           0 :                 Copy32( wyzx_del_buf[hSpar->hMdEnc->spar_md.res_ind], p_pcm_tmp_fx[0], num_del_samples );
     952           0 :                 Copy32( data_fx[hSpar->hMdEnc->spar_md.res_ind], p_pcm_tmp_fx[0] + num_del_samples, sub( input_frame, num_del_samples ) );
     953             :             }
     954             :         }
     955             :         ELSE
     956             :         {
     957             :             /* delayed W */
     958      113609 :             Copy32( wyzx_del_buf[0], p_pcm_tmp_fx[0], num_del_samples );
     959      113609 :             Copy32( data_fx[0], p_pcm_tmp_fx[0] + num_del_samples, sub( input_frame, num_del_samples ) );
     960             :         }
     961             : 
     962      341617 :         FOR( i = 1; i < hSpar->hFbMixer->fb_cfg->num_out_chans; i++ )
     963             :         {
     964      228008 :             Word16 idx = hSpar->hFbMixer->fb_cfg->remix_order[i];
     965      228008 :             move16();
     966             : 
     967             :             /* delayed, reorderd and accumulated with (negative) prediction from W */
     968      228008 :             v_add_fx( wyzx_del_buf[idx], p_pcm_tmp_fx[i], p_pcm_tmp_fx[i], num_del_samples );
     969      228008 :             v_add_fx( data_fx[idx], p_pcm_tmp_fx[i] + num_del_samples, p_pcm_tmp_fx[i] + num_del_samples, sub( input_frame, num_del_samples ) );
     970             :         }
     971             :     }
     972             :     /*-----------------------------------------------------------------------------------------*
     973             :      * PCA encoder
     974             :      *-----------------------------------------------------------------------------------------*/
     975             : 
     976      157500 :     IF( hSpar->hPCA != NULL )
     977             :     {
     978        1750 :         ivas_pca_enc_fx( hEncoderConfig, hSpar->hPCA, hMetaData, p_pcm_tmp_fx, input_frame, FOA_CHANNELS );
     979             :     }
     980             :     ELSE
     981             :     {
     982      155750 :         test();
     983      155750 :         IF( EQ_32( ivas_total_brate, PCA_BRATE ) && EQ_16( sba_order, SBA_FOA_ORDER ) )
     984             :         {
     985             :             /* write PCA bypass bit */
     986        9830 :             push_next_indice( hMetaData, PCA_MODE_INACTIVE, 1 );
     987             :         }
     988             :     }
     989             : 
     990             : 
     991             :     /*-----------------------------------------------------------------------------------------*
     992             :      * AGC
     993             :      *-----------------------------------------------------------------------------------------*/
     994             : 
     995      157500 :     IF( EQ_16( dtx_vad, 1 ) )
     996             :     {
     997      154137 :         IF( hSpar->AGC_Enable != 0 )
     998             :         {
     999       84036 :             FOR( i = 0; i < hSpar->hFbMixer->fb_cfg->num_out_chans; i++ )
    1000             :             {
    1001       42018 :                 q_pcm_fx[i] = q_data;
    1002       42018 :                 move16();
    1003             :             }
    1004             : 
    1005       42018 :             ivas_agc_enc_process_fx( hSpar->hAgcEnc, hMetaData, p_pcm_tmp_fx, p_pcm_tmp_fx, hSpar->hFbMixer->fb_cfg->num_out_chans, hEncoderConfig, q_pcm_fx );
    1006             : 
    1007       84036 :             FOR( i = 0; i < hSpar->hFbMixer->fb_cfg->num_out_chans; i++ )
    1008             :             {
    1009       42018 :                 scale_sig32( p_pcm_tmp_fx[i], input_frame, sub( q_data, q_pcm_fx[i] ) ); // q_data
    1010       42018 :                 q_pcm_fx[i] = q_data;
    1011       42018 :                 move16();
    1012             :             }
    1013             :         }
    1014             :     }
    1015             : 
    1016             : 
    1017             :     /*-----------------------------------------------------------------------------------------*
    1018             :      * Re-order the dmx back to ACN/SN3D format
    1019             :      *-----------------------------------------------------------------------------------------*/
    1020             : 
    1021      157500 :     order = remix_order_set[hSpar->hMdEnc->spar_md_cfg.remix_unmix_order];
    1022      157500 :     move16();
    1023             : 
    1024      543008 :     FOR( j = 0; j < nchan_transport; j++ )
    1025             :     {
    1026      385508 :         IF( LT_16( st_ivas->nchan_transport, 3 ) )
    1027             :         {
    1028      124231 :             Copy32( p_pcm_tmp_fx[j], data_fx[j], input_frame );
    1029             :         }
    1030             :         ELSE
    1031             :         {
    1032      261277 :             Copy32( p_pcm_tmp_fx[j], data_fx[order[j]], input_frame );
    1033             :         }
    1034             :     }
    1035      401992 :     FOR( ; j < IVAS_SPAR_MAX_DMX_CHS; j++ )
    1036             :     {
    1037      244492 :         set32_fx( data_fx[order[j]], 0, input_frame );
    1038             :     }
    1039             : 
    1040      157500 :     hSpar->hMdEnc->spar_md.prior_dyn_active_w_flag = dyn_active_w_flag;
    1041      157500 :     move16();
    1042             : 
    1043      157500 :     pop_wmops();
    1044             : 
    1045      157500 :     return error;
    1046             : }

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