LCOV - code coverage report
Current view: top level - lib_dec - ivas_mc_param_dec_fx.c (source / functions) Hit Total Coverage
Test: Coverage on main enc/dec/rend @ 574a190e3c6896c6c4ed10d7f23649709a0c4347 Lines: 1455 1654 88.0 %
Date: 2025-06-27 02:59:36 Functions: 22 22 100.0 %

          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 <assert.h>
      34             : #include "options.h"
      35             : #include <stdint.h>
      36             : #include "cnst.h"
      37             : #include "rom_enc.h"
      38             : #include "rom_com.h"
      39             : #include "prot_fx.h"
      40             : #include "ivas_prot_rend_fx.h"
      41             : #include "ivas_cnst.h"
      42             : #include "ivas_rom_com.h"
      43             : #include "ivas_rom_dec.h"
      44             : #include "math.h"
      45             : #include "wmc_auto.h"
      46             : #include "rom_dec.h"
      47             : #include "ivas_prot_fx.h"
      48             : 
      49             : #define INV_EPSILON_MANT 214748365
      50             : 
      51             : /*-----------------------------------------------------------------------*
      52             :  * Local constants
      53             :  *-----------------------------------------------------------------------*/
      54             : 
      55             : #define PARAM_MC_LOCAL_SZ_LFE_MAP 5
      56             : 
      57             : /*-----------------------------------------------------------------------*
      58             :  * Local typedefs
      59             :  *-----------------------------------------------------------------------*/
      60             : 
      61             : typedef struct parameter_band_mapping_struct
      62             : {
      63             :     Word16 n_source_bands[20];
      64             :     Word16 source_band_idx[20][4];
      65             :     Word16 source_band_factor_fx[20][4]; /*Q15*/
      66             : 
      67             : } PARAM_MC_PARAMETER_BAND_MAPPING;
      68             : 
      69             : /*-----------------------------------------------------------------------*
      70             :  * Local function prototypes
      71             :  *-----------------------------------------------------------------------*/
      72             : 
      73             : static void ivas_param_mc_dec_init_fx( PARAM_MC_DEC_HANDLE hParamMC, const Word16 nchan_in, const Word16 nchan_out );
      74             : 
      75             : static void ivas_param_mc_dec_copy_diffuse_proto( PARAM_MC_DEC_HANDLE hParamMC, Word32 Cldfb_buffer_real_fx[MAX_CICP_CHANNELS][PARAM_MC_MAX_NSLOTS_IN_SUBFRAME][CLDFB_NO_CHANNELS_MAX], Word32 Cldfb_buffer_imag_fx[MAX_CICP_CHANNELS][PARAM_MC_MAX_NSLOTS_IN_SUBFRAME][CLDFB_NO_CHANNELS_MAX], const Word16 nY, const Word16 slot_idx );
      76             : static Word16 ivas_param_mc_range_decoder_LC_fx( UWord16 *bit_buffer, Word16 *x, Word16 *BER_detect, const Word16 sz_seq, const Word16 sz_alphabet, const UWord16 *cft, const UWord16 *sft, const Word16 tot_shift, const Word16 nbbits );
      77             : 
      78             : 
      79             : static void ivas_param_mc_get_mixing_matrices_fx(
      80             :     PARAM_MC_DEC_HANDLE hParamMC, /* i  : Parametric MC handle */
      81             :     IVAS_OUTPUT_SETUP *hSynthesisOutputSetup,
      82             :     Word32 Cx_in_fixed[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS], /* i  : input covariance for all parameter bands         */
      83             :     Word16 Cx_in_e,
      84             :     const Word16 param_band_idx,
      85             :     Word32 *mixing_matrix_fx[],
      86             :     Word16 *mixing_matrix_e,
      87             :     Word32 *mixing_matrix_res_fx[],
      88             :     Word16 *mixing_matrix_res_e,
      89             :     const Word16 nY_intern,                     /* i  : number of channels in the transported format     */
      90             :     const PARAM_MC_SYNTHESIS_CONF synth_config, /* i  : Parametric MC synthesis config                   */
      91             :     const Word16 nX,                            /* i  : number of transport channels                     */
      92             :     const Word16 nY_cov                         /* i  : number of covariance synthesis output channels   */
      93             : );
      94             : 
      95             : static Word16 ivas_param_mc_uniform_decoder_fx( Word16 *seq, const Word16 sz_seq, const Word16 *alphabet, const Word16 N, UWord16 bit_buffer[PARAM_MC_MAX_BITS] );
      96             : static void ivas_param_mc_dec_compute_interpolator_fx( const UWord16 bAttackPresent, const UWord16 attackPos, const UWord16 interp_length, Word16 *interpolator );
      97             : 
      98             : static void param_mc_set_num_synth_bands( const Word32 output_Fs, PARAM_MC_DEC_HANDLE hParamMC );
      99             : 
     100             : static void ivas_param_mc_get_param_band_mapping( const Word16 n_target_bands, const Word16 *target_band_grouping, const Word16 n_source_bands, const Word16 *source_band_grouping, PARAM_MC_PARAMETER_BAND_MAPPING *parameter_band_mapping );
     101             : 
     102             : 
     103             : static void ivas_param_mc_bs_decode_parameter_values_fx( UWord16 bit_buffer[], Word16 *bit_pos, const Word16 max_bits, Word16 *BER_detect, HANDLE_IVAS_PARAM_MC_METADATA hMetadataPMC, HANDLE_PARAM_MC_PARAMETER_CODING_INFO hParamCodingInfo, const Word16 map_size_wo_lfe, const Word16 map_size, const Word16 num_lfe_bands, const Word16 band_step, const Word16 num_param_bands, Word16 *value_buffer );
     104             : static void ivas_param_mc_dequantize_cov_fx( PARAM_MC_DEC_HANDLE hParamMC, Word16 *ild_q_fx, Word16 *icc_q_fx, const Word16 param_band_index, const Word16 nY_cov, const PARAM_MC_SYNTHESIS_CONF synth_conf, const Word16 nY_int, const Word16 nX, Word32 *Cx_state_fx, Word16 Cx_state_e, Word32 *Cproto_fx, Word16 Cproto_e, Word32 *Cy_state_fx, Word16 *Cy_state_e );
     105             : static ivas_error param_mc_get_diff_proto_info_fx( const Word32 *proto_mtx, const UWord16 nchan_transport, const UWord16 nchan_out_cov, PARAM_MC_DIFF_PROTO_INFO *p_diff_proto_info, Word16 Q_proto_mtx );
     106             : static void param_mc_update_mixing_matrices_fx( PARAM_MC_DEC_HANDLE hParamMC, Word32 *mixing_matrix[], Word16 *mixing_matrix_fx, Word32 *mixing_matrix_res[], Word16 *mixing_matrix_res_exp, const UWord16 nX, const UWord16 nY );
     107             : 
     108             : 
     109             : static void param_mc_protoSignalComputation_fx( Word32 *RealBuffer_fx, Word32 *ImagBuffer_fx, Word32 *proto_frame_f_fx, const PARAM_MC_DIFF_PROTO_INFO *diff_proto_info, const Word16 num_freq_bands, const Word16 Cldfb_Real_Imag_exp, Word16 *proto_frame_f_fx_q /* Word16 ImagBuffer_fx_e, Word16 *common_e*/ );
     110             : 
     111             : /*-------------------------------------------------------------------------
     112             :  * ivas_param_mc_dec_open()
     113             :  *
     114             :  * Open Parametric MC decoder handle
     115             :  *-------------------------------------------------------------------------*/
     116             : 
     117         241 : ivas_error ivas_param_mc_dec_open_fx(
     118             :     Decoder_Struct *st_ivas /* i/o: IVAS decoder structure  */
     119             : )
     120             : {
     121             :     Word16 k, nchan_transport;
     122             :     PARAM_MC_DEC_HANDLE hParamMC;
     123             :     Word16 nchan_out_transport;
     124             :     Word16 nchan_out_cov;
     125             :     Word32 proto_matrix_fx[MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS];
     126             :     Word32 proto_mtx_norm_fx, tmp32;
     127             :     Word16 frequency_axis_fx[CLDFB_NO_CHANNELS_MAX];
     128             :     Word16 max_param_band_residual;
     129             :     UWord16 config_index;
     130             :     MC_LS_SETUP mc_ls_setup;
     131             :     AUDIO_CONFIG output_config;
     132             :     Word32 output_Fs, ivas_total_brate;
     133             :     ivas_error error;
     134             : 
     135         241 :     error = IVAS_ERR_OK;
     136         241 :     move32();
     137             : 
     138             :     /*-----------------------------------------------------------------*
     139             :      * prepare library opening
     140             :      *-----------------------------------------------------------------*/
     141             : 
     142         241 :     IF( ( hParamMC = (PARAM_MC_DEC_HANDLE) malloc( sizeof( PARAM_MC_DEC_DATA ) ) ) == NULL )
     143             :     {
     144           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     145             :     }
     146             : 
     147         241 :     IF( ( hParamMC->hMetadataPMC = (HANDLE_IVAS_PARAM_MC_METADATA) malloc( sizeof( IVAS_PARAM_MC_METADATA ) ) ) == NULL )
     148             :     {
     149           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC metadata \n" ) );
     150             :     }
     151             : 
     152         241 :     output_Fs = st_ivas->hDecoderConfig->output_Fs;
     153         241 :     move32();
     154         241 :     output_config = st_ivas->hDecoderConfig->output_config;
     155         241 :     move32();
     156         241 :     ivas_total_brate = st_ivas->hDecoderConfig->ivas_total_brate;
     157         241 :     move32();
     158         241 :     mc_ls_setup = ivas_mc_map_output_config_to_mc_ls_setup_fx( st_ivas->transport_config );
     159         241 :     nchan_out_transport = add( st_ivas->hTransSetup.nchan_out_woLFE, st_ivas->hTransSetup.num_lfe );
     160         241 :     hParamMC->hoa_encoder_fx = NULL;
     161             : 
     162             :     /* determine the synthesis config */
     163         241 :     test();
     164         241 :     test();
     165         241 :     test();
     166         241 :     test();
     167         241 :     test();
     168         241 :     IF( EQ_32( st_ivas->renderer_type, RENDERER_SBA_LINEAR_ENC ) || EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) || EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_OBJECTS_TD ) || EQ_32( st_ivas->transport_config, output_config ) )
     169             :     {
     170         184 :         hParamMC->synthesis_conf = PARAM_MC_SYNTH_DIRECT;
     171         184 :         move32();
     172             :     }
     173          57 :     ELSE IF( EQ_32( output_config, IVAS_AUDIO_CONFIG_MONO ) || EQ_32( output_config, IVAS_AUDIO_CONFIG_STEREO ) )
     174             :     {
     175           2 :         hParamMC->synthesis_conf = PARAM_MC_SYNTH_MONO_STEREO;
     176           2 :         move32();
     177             :     }
     178          55 :     ELSE IF( NE_32( st_ivas->transport_config, output_config ) )
     179             :     {
     180          55 :         test();
     181          55 :         test();
     182          55 :         IF( ( NE_32( output_config, IVAS_AUDIO_CONFIG_LS_CUSTOM ) && GT_16( nchan_out_transport, audioCfg2channels( output_config ) ) ) || ( EQ_32( output_config, IVAS_AUDIO_CONFIG_LS_CUSTOM ) && GT_16( nchan_out_transport, st_ivas->hOutSetup.nchan_out_woLFE ) ) )
     183             :         {
     184           1 :             hParamMC->synthesis_conf = PARAM_MC_SYNTH_LS_CONV_COV;
     185           1 :             move32();
     186             :             /* need to reset the intern config */
     187           1 :             st_ivas->intern_config = output_config;
     188           1 :             move32();
     189           1 :             ivas_output_init( &( st_ivas->hIntSetup ), st_ivas->intern_config );
     190           1 :             IF( EQ_32( output_config, IVAS_AUDIO_CONFIG_LS_CUSTOM ) )
     191             :             {
     192           0 :                 st_ivas->hIntSetup.nchan_out_woLFE = st_ivas->hLsSetupCustom->num_spk;
     193           0 :                 move32();
     194           0 :                 st_ivas->hIntSetup.ls_azimuth_fx = st_ivas->hLsSetupCustom->ls_azimuth_fx;     // Q22
     195           0 :                 st_ivas->hIntSetup.ls_elevation_fx = st_ivas->hLsSetupCustom->ls_elevation_fx; // Q22
     196             :             }
     197             :         }
     198             :         ELSE
     199             :         {
     200          54 :             hParamMC->synthesis_conf = PARAM_MC_SYNTH_LS_CONV_CLDFB;
     201          54 :             move32();
     202             :         }
     203             :     }
     204             : 
     205         241 :     hParamMC->ls_conv_dmx_matrix_fx = NULL;
     206             : 
     207         241 :     test();
     208         241 :     IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     209             :     {
     210           3 :         nchan_out_cov = add( st_ivas->hOutSetup.nchan_out_woLFE, st_ivas->hOutSetup.num_lfe );
     211             :     }
     212             :     ELSE
     213             :     {
     214         238 :         nchan_out_cov = nchan_out_transport;
     215         238 :         move16();
     216             :     }
     217             : 
     218         241 :     st_ivas->nchan_transport = ivas_param_mc_getNumTransportChannels_fx( ivas_total_brate, mc_ls_setup );
     219         241 :     move16();
     220         241 :     config_index = ivas_param_mc_get_configuration_index_fx( mc_ls_setup, ivas_total_brate );
     221         241 :     nchan_transport = st_ivas->nchan_transport;
     222         241 :     move16();
     223             : 
     224         241 :     SWITCH( nchan_transport )
     225             :     {
     226          10 :         case 4:
     227             :         case 3:
     228          10 :             st_ivas->nCPE = 2;
     229          10 :             move16();
     230          10 :             st_ivas->nSCE = 0;
     231          10 :             move16();
     232          10 :             st_ivas->element_mode_init = IVAS_CPE_MDCT;
     233          10 :             move16();
     234          10 :             BREAK;
     235         231 :         case 2:
     236         231 :             st_ivas->nCPE = 1;
     237         231 :             move16();
     238         231 :             st_ivas->nSCE = 0;
     239         231 :             move16();
     240         231 :             st_ivas->element_mode_init = IVAS_CPE_MDCT;
     241         231 :             move16();
     242             : 
     243         231 :             BREAK;
     244             :     }
     245             : 
     246             :     /*-----------------------------------------------------------------*
     247             :      * set input parameters
     248             :      *-----------------------------------------------------------------*/
     249             : 
     250             :     // hParamMC->slot_size = (int16_t) ( output_Fs / FRAMES_PER_SEC ) / CLDFB_NO_COL_MAX;
     251         241 :     Word16 temp_e;
     252         241 :     Word16 temp = BASOP_Util_Divide3232_Scale( output_Fs, FRAMES_PER_SEC, &temp_e );
     253         241 :     temp = shr( temp, sub( 15, temp_e ) ); // Going back to Q0
     254         241 :     temp = BASOP_Util_Divide1616_Scale( temp, CLDFB_NO_COL_MAX, &temp_e );
     255         241 :     temp = shr( temp, sub( 15, temp_e ) ); // Going back to Q0
     256         241 :     hParamMC->slot_size = temp;
     257         241 :     move16();
     258         241 :     set16_fx( hParamMC->subframe_nbslots, 0, MAX_JBM_SUBFRAMES_5MS );
     259         241 :     set16_fx( hParamMC->subframe_nbslots, PARAM_MC_MAX_NSLOTS_IN_SUBFRAME, DEFAULT_JBM_SUBFRAMES_5MS );
     260         241 :     hParamMC->nb_subframes = DEFAULT_JBM_SUBFRAMES_5MS;
     261         241 :     move16();
     262             : 
     263             :     // hParamMC->num_freq_bands = (int16_t)(output_Fs * INV_CLDFB_BANDWIDTH + 0.5f);
     264         241 :     hParamMC->num_freq_bands = extract_l( Mpy_32_32_r( output_Fs, INV_CLDFB_BANDWIDTH_Q31 ) );
     265         241 :     move16();
     266         241 :     hParamMC->max_band_energy_compensation = hParamMC->num_freq_bands;
     267         241 :     move16();
     268         241 :     ivas_param_mc_metadata_open_fx( mc_ls_setup, ivas_total_brate, hParamMC->hMetadataPMC );
     269             : 
     270             :     /* init arrays for quantized parameters */
     271             : 
     272         241 :     IF( ( hParamMC->icc_q_fx = (Word16 *) malloc( hParamMC->hMetadataPMC->num_parameter_bands * hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe * sizeof( Word16 ) ) ) == NULL )
     273             :     {
     274           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     275             :     }
     276         241 :     IF( ( hParamMC->icld_q_fx = (Word16 *) malloc( hParamMC->hMetadataPMC->num_parameter_bands * hParamMC->hMetadataPMC->ild_mapping_conf->ild_map_size_lfe * sizeof( Word16 ) ) ) == NULL )
     277             :     {
     278           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     279             :     }
     280         241 :     set16_fx( hParamMC->icld_q_fx, PARAM_MC_DEFAULT_MIN_ILD_FX, imult1616( hParamMC->hMetadataPMC->num_parameter_bands, hParamMC->hMetadataPMC->ild_mapping_conf->ild_map_size_lfe ) ); // Q8
     281         241 :     set16_fx( hParamMC->icc_q_fx, 0, imult1616( hParamMC->hMetadataPMC->num_parameter_bands, hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe ) );                            // Q15
     282             : 
     283         241 :     param_mc_set_num_synth_bands( output_Fs, hParamMC );
     284             : 
     285             :     /* Band Grouping */
     286         241 :     IF( EQ_16( hParamMC->hMetadataPMC->num_parameter_bands, 20 ) )
     287             :     {
     288           0 :         Copy( param_mc_band_grouping_20, hParamMC->band_grouping, 20 + 1 );
     289             :     }
     290         241 :     ELSE IF( EQ_16( hParamMC->hMetadataPMC->num_parameter_bands, 14 ) )
     291             :     {
     292         106 :         Copy( param_mc_band_grouping_14, hParamMC->band_grouping, 14 + 1 );
     293             :     }
     294         135 :     ELSE IF( EQ_16( hParamMC->hMetadataPMC->num_parameter_bands, 10 ) )
     295             :     {
     296         135 :         Copy( param_mc_band_grouping_10, hParamMC->band_grouping, 10 + 1 );
     297             :     }
     298             :     ELSE
     299             :     {
     300           0 :         assert( 0 && "nbands must be 20, 14, or 10!" );
     301             :     }
     302             : 
     303             :     /* set max parameter band for abs cov */
     304         241 :     k = 0;
     305         241 :     move16();
     306        2140 :     WHILE( LE_16( hParamMC->band_grouping[k], PARAM_MC_MAX_BAND_ABS_COV_DEC ) )
     307             :     {
     308        1899 :         hParamMC->max_param_band_abs_cov = k;
     309        1899 :         move16();
     310        1899 :         k = add( k, 1 );
     311             :     }
     312             : 
     313             :     /*-----------------------------------------------------------------*
     314             :      * open sub-modules
     315             :      *-----------------------------------------------------------------*/
     316             : 
     317             :     /* prototype signal computation */
     318             : 
     319         241 :     test();
     320         241 :     test();
     321         241 :     IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_CLDFB ) || EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     322             :     {
     323          57 :         IF( NE_32( ( error = ivas_ls_setup_conversion_open_fx( st_ivas ) ), IVAS_ERR_OK ) )
     324             :         {
     325           0 :             return error;
     326             :         }
     327             : 
     328             :         /* convert the ls conv dmx matrix into column order matrix format (nchan_out_cldfb x nchan_out) */
     329          57 :         test();
     330          57 :         IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     331             :         {
     332           3 :             IF( ( hParamMC->ls_conv_dmx_matrix_fx = (Word32 *) malloc( nchan_out_transport * nchan_out_cov * sizeof( Word32 ) ) ) == NULL )
     333             :             {
     334           0 :                 return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     335             :             }
     336             : 
     337          35 :             FOR( k = 0; k < nchan_out_transport; k++ )
     338             :             {
     339          32 :                 Copy32( st_ivas->hLsSetUpConversion->dmxMtx_fx[k], &hParamMC->ls_conv_dmx_matrix_fx[k * nchan_out_cov], nchan_out_cov ); /*Q30*/
     340             :             }
     341             : 
     342             :             /* convert ParamMC parameter bands to SFB */
     343           3 :             IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     344             :             {
     345           2 :                 st_ivas->hLsSetUpConversion->sfbCnt = hParamMC->num_param_bands_synth;
     346           2 :                 move16();
     347          30 :                 FOR( k = 0; k <= hParamMC->num_param_bands_synth; k++ )
     348             :                 {
     349          28 :                     st_ivas->hLsSetUpConversion->sfbOffset[k] = imult1616( PARAM_MC_BAND_TO_MDCT_BAND_RATIO, hParamMC->band_grouping[k] );
     350          28 :                     move16();
     351             :                 }
     352             :             }
     353             :             ELSE
     354             :             {
     355             :                 /* close the ls conversion handle immediately, it was only needed to get the DMX matrix in case of DMX in the covariance domain */
     356           1 :                 ivas_ls_setup_conversion_close_fx( &st_ivas->hLsSetUpConversion );
     357             :             }
     358             :         }
     359             :     }
     360         241 :     IF( ( hParamMC->proto_matrix_int_fx = (Word32 *) malloc( nchan_out_transport * nchan_transport * sizeof( Word32 ) ) ) == NULL )
     361             :     {
     362           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     363             :     }
     364         241 :     Copy32( ivas_param_mc_conf[config_index].dmx_fac_fx, hParamMC->proto_matrix_int_fx, imult1616( nchan_transport, nchan_out_transport ) ); /*Q31*/
     365             : 
     366         241 :     hParamMC->proto_matrix_int_len = imult1616( nchan_out_transport, nchan_transport );
     367         241 :     move16();
     368             : 
     369         241 :     test();
     370         241 :     IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     371             :     {
     372           3 :         Scale_sig32( hParamMC->ls_conv_dmx_matrix_fx, imult1616( nchan_out_transport, nchan_out_cov ), -4 );                                                                                                /*Q.26*/
     373           3 :         matrix_product_fx( hParamMC->ls_conv_dmx_matrix_fx, nchan_out_cov, nchan_out_transport, 0, ivas_param_mc_conf[config_index].dmx_fac_fx, nchan_out_transport, nchan_transport, 0, proto_matrix_fx ); /*Q.26*/
     374           3 :         Scale_sig32( hParamMC->ls_conv_dmx_matrix_fx, imult1616( nchan_out_transport, nchan_out_cov ), 4 );                                                                                                 /*Q.26*/
     375           3 :         IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     376             :         {
     377           2 :             tmp32 = ONE_IN_Q26; /*Q26*/
     378           2 :             move32();
     379          14 :             FOR( k = 0; k < nchan_transport * nchan_out_cov; k++ )
     380             :             {
     381          12 :                 tmp32 = L_max( L_abs( tmp32 ), L_abs( proto_matrix_fx[k] ) ); /*Q.26*/
     382             :             }
     383           2 :             proto_mtx_norm_fx = divide3232( ONE_IN_Q26, tmp32 ); /*Q15*/
     384             : 
     385             :             /* transfer flattened proto_matrix to 2D in hLsSetupConversion->dmxMtx */
     386           8 :             FOR( k = 0; k < nchan_transport; k++ )
     387             :             {
     388          18 :                 FOR( Word16 i = 0; i < nchan_out_cov; i++ )
     389             :                 {
     390          12 :                     IF( EQ_32( proto_matrix_fx[k * nchan_out_cov + i], tmp32 ) )
     391             :                     {
     392           4 :                         st_ivas->hLsSetUpConversion->dmxMtx_fx[k][i] = ONE_IN_Q30; // Q30
     393             :                     }
     394             :                     ELSE
     395             :                     {
     396           8 :                         st_ivas->hLsSetUpConversion->dmxMtx_fx[k][i] = L_shl( Mult_32_16( proto_matrix_fx[k * nchan_out_cov + i], extract_l( proto_mtx_norm_fx ) ), 4 ); /*Q.30*/
     397             :                     }
     398          12 :                     move32();
     399             :                 }
     400             :             }
     401             :         }
     402             :     }
     403             :     ELSE
     404             :     {
     405         238 :         Copy32( ivas_param_mc_conf[config_index].dmx_fac_fx, proto_matrix_fx, imult1616( nchan_out_transport, nchan_transport ) ); /*Q.31*/
     406         238 :         Scale_sig32( proto_matrix_fx, imult1616( nchan_out_transport, nchan_transport ), -5 );                                     /*Scaling down to 26*/
     407             :     }
     408             : 
     409         241 :     IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     410             :     {
     411           2 :         hParamMC->num_outputs_diff = 0;
     412           2 :         move16();
     413           2 :         hParamMC->diff_proto_info = NULL;
     414           2 :         hParamMC->h_output_synthesis_params.use_onset_filters = 0;
     415           2 :         move16();
     416           2 :         hParamMC->max_band_decorr = 0;
     417           2 :         move16();
     418           2 :         hParamMC->h_freq_domain_decorr_ap_params = NULL;
     419           2 :         hParamMC->h_freq_domain_decorr_ap_state = NULL;
     420             :     }
     421             :     ELSE
     422             :     {
     423         239 :         hParamMC->num_outputs_diff = nchan_out_cov;
     424         239 :         move16();
     425         239 :         IF( ( hParamMC->diff_proto_info = (PARAM_MC_DIFF_PROTO_INFO *) malloc( sizeof( PARAM_MC_DIFF_PROTO_INFO ) ) ) == NULL )
     426             :         {
     427           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     428             :         }
     429             : 
     430         239 :         IF( NE_32( ( error = param_mc_get_diff_proto_info_fx( proto_matrix_fx, nchan_transport, nchan_out_cov, hParamMC->diff_proto_info, Q26 ) ), IVAS_ERR_OK ) )
     431             :         {
     432           0 :             return error;
     433             :         }
     434             : 
     435             :         /* decorrelation */
     436         239 :         hParamMC->h_freq_domain_decorr_ap_params = NULL;
     437         239 :         hParamMC->h_freq_domain_decorr_ap_state = NULL;
     438             : 
     439         239 :         ivas_dirac_dec_get_frequency_axis_fx( frequency_axis_fx, output_Fs, hParamMC->num_freq_bands ); // Q0
     440             : 
     441         239 :         IF( NE_32( ( error = ivas_dirac_dec_decorr_open_fx( &( hParamMC->h_freq_domain_decorr_ap_params ), &( hParamMC->h_freq_domain_decorr_ap_state ), hParamMC->num_freq_bands, hParamMC->num_outputs_diff,
     442             :                                                             hParamMC->diff_proto_info->num_protos_diff, DIRAC_SYNTHESIS_COV_MC_LS, frequency_axis_fx, nchan_transport, output_Fs ) ),
     443             :                    IVAS_ERR_OK ) )
     444             :         {
     445           0 :             return error;
     446             :         }
     447             : 
     448         239 :         hParamMC->h_output_synthesis_params.use_onset_filters = 0;
     449         239 :         move16();
     450         239 :         hParamMC->max_band_decorr = hParamMC->h_freq_domain_decorr_ap_params->max_band_decorr;
     451         239 :         move16();
     452             :     }
     453         241 :     hParamMC->max_band_energy_compensation = hParamMC->band_grouping[hParamMC->hMetadataPMC->nbands_coded];
     454         241 :     move16();
     455         241 :     max_param_band_residual = 0;
     456         241 :     move16();
     457             : 
     458         851 :     FOR( k = hParamMC->hMetadataPMC->num_parameter_bands; k >= 0; k-- )
     459             :     {
     460         851 :         IF( LE_16( hParamMC->band_grouping[k], hParamMC->max_band_decorr ) )
     461             :         {
     462         241 :             max_param_band_residual = k;
     463         241 :             move16();
     464         241 :             assert( hParamMC->band_grouping[k] == hParamMC->max_band_decorr );
     465         241 :             break;
     466             :         }
     467             :     }
     468             : 
     469             :     /* output synthesis */
     470         241 :     IF( NE_32( ( error = ivas_dirac_dec_output_synthesis_cov_open_fx( &( hParamMC->h_output_synthesis_params ), &( hParamMC->h_output_synthesis_cov_state ), hParamMC->max_band_decorr, PARAM_MC_MAX_NSLOTS, hParamMC->hMetadataPMC->num_parameter_bands, max_param_band_residual, nchan_transport, nchan_out_cov, proto_matrix_fx ) ), IVAS_ERR_OK ) )
     471             :     {
     472           0 :         return error;
     473             :     }
     474             : 
     475         241 :     ivas_param_mc_dec_compute_interpolator_fx( 0, 0, DEFAULT_JBM_CLDFB_TIMESLOTS, hParamMC->h_output_synthesis_params.interpolator_fx );
     476             : 
     477             :     /* Head or external rotation */
     478         241 :     test();
     479         241 :     test();
     480         241 :     test();
     481         241 :     IF( ( EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) ) && ( st_ivas->hDecoderConfig->Opt_Headrotation || st_ivas->hDecoderConfig->Opt_ExternalOrientation ) )
     482             :     {
     483           9 :         IF( ( hParamMC->hoa_encoder_fx = (Word32 *) malloc( st_ivas->hTransSetup.nchan_out_woLFE * MAX_INTERN_CHANNELS * sizeof( Word32 ) ) ) == NULL )
     484             :         {
     485           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     486             :         }
     487           9 :         compute_hoa_encoder_mtx_fx( st_ivas->hTransSetup.ls_azimuth_fx, st_ivas->hTransSetup.ls_elevation_fx, hParamMC->hoa_encoder_fx, st_ivas->hTransSetup.nchan_out_woLFE, HEAD_ROTATION_HOA_ORDER );
     488             :     }
     489             : 
     490             :     /*-----------------------------------------------------------------*
     491             :      * memory allocation
     492             :      *-----------------------------------------------------------------*/
     493             : 
     494         241 :     IF( hParamMC->max_band_decorr > 0 )
     495             :     {
     496         239 :         IF( ( hParamMC->proto_frame_f_fx = (Word32 *) malloc( 2 * hParamMC->diff_proto_info->num_protos_diff * hParamMC->num_freq_bands * sizeof( Word32 ) ) ) == NULL )
     497             :         {
     498           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     499             :         }
     500         239 :         IF( ( hParamMC->proto_frame_dec_f_fx = (Word32 *) malloc( 2 * nchan_out_cov * hParamMC->num_freq_bands * sizeof( Word32 ) ) ) == NULL )
     501             :         {
     502           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     503             :         }
     504             :     }
     505             :     ELSE
     506             :     {
     507           2 :         hParamMC->proto_frame_f_fx = NULL;
     508           2 :         hParamMC->proto_frame_dec_f_fx = NULL;
     509             :     }
     510             : 
     511         241 :     ivas_param_mc_dec_init_fx( hParamMC, nchan_transport, nchan_out_cov );
     512             : 
     513         241 :     IF( NE_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     514             :     {
     515             :         Word16 n_cldfb_slots;
     516             : 
     517         239 :         n_cldfb_slots = DEFAULT_JBM_CLDFB_TIMESLOTS;
     518         239 :         move16();
     519         239 :         IF( st_ivas->hDecoderConfig->Opt_tsm )
     520             :         {
     521           0 :             n_cldfb_slots = MAX_JBM_CLDFB_TIMESLOTS;
     522           0 :             move16();
     523             :         }
     524             : 
     525         239 :         Word16 cldfb_buf_size = imult1616( imult1616( n_cldfb_slots, nchan_transport ), hParamMC->num_freq_bands );
     526         239 :         IF( ( hParamMC->Cldfb_RealBuffer_tc_fx = (Word32 *) malloc( cldfb_buf_size * sizeof( Word32 ) ) ) == NULL )
     527             :         {
     528           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC JBM\n" ) );
     529             :         }
     530         239 :         set32_fx( hParamMC->Cldfb_RealBuffer_tc_fx, 0, cldfb_buf_size );
     531         239 :         IF( ( hParamMC->Cldfb_ImagBuffer_tc_fx = (Word32 *) malloc( cldfb_buf_size * sizeof( Word32 ) ) ) == NULL )
     532             :         {
     533           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC JBM\n" ) );
     534             :         }
     535         239 :         set32_fx( hParamMC->Cldfb_ImagBuffer_tc_fx, 0, cldfb_buf_size );
     536             : 
     537         239 :         hParamMC->sz = imult1616( imult1616( n_cldfb_slots, nchan_transport ), hParamMC->num_freq_bands );
     538         239 :         move16();
     539             : 
     540         239 :         IF( st_ivas->hTcBuffer == NULL )
     541             :         {
     542           9 :             IF( NE_32( ( error = ivas_jbm_dec_tc_buffer_open_fx( st_ivas, TC_BUFFER_MODE_RENDERER, nchan_transport, nchan_transport, 0, NS2SA_FX2( st_ivas->hDecoderConfig->output_Fs, CLDFB_SLOT_NS ) ) ), IVAS_ERR_OK ) )
     543             :             {
     544           0 :                 return error;
     545             :             }
     546             :         }
     547             :     }
     548             :     ELSE
     549             :     {
     550           2 :         hParamMC->Cldfb_RealBuffer_tc_fx = NULL;
     551           2 :         hParamMC->Cldfb_ImagBuffer_tc_fx = NULL;
     552             :     }
     553             : 
     554         241 :     hParamMC->subframes_rendered = 0;
     555         241 :     move16();
     556         241 :     hParamMC->slots_rendered = 0;
     557         241 :     move16();
     558             : 
     559         241 :     st_ivas->hParamMC = hParamMC;
     560         241 :     return error;
     561             : }
     562             : 
     563             : 
     564             : /*-------------------------------------------------------------------------
     565             :  * ivas_param_mc_get_param_band_mapping()
     566             :  *
     567             :  *
     568             :  *-------------------------------------------------------------------------*/
     569             : 
     570          56 : static void ivas_param_mc_get_param_band_mapping(
     571             :     const Word16 n_target_bands,
     572             :     const Word16 *target_band_grouping,
     573             :     const Word16 n_source_bands,
     574             :     const Word16 *source_band_grouping,
     575             :     PARAM_MC_PARAMETER_BAND_MAPPING *parameter_band_mapping )
     576             : {
     577             :     Word16 target_band_idx;
     578          56 :     Word16 source_band_idx = 0;
     579          56 :     move16();
     580             :     Word16 source_band_cnt_total;
     581             : 
     582         728 :     FOR( target_band_idx = 0; target_band_idx < n_target_bands; target_band_idx++ )
     583             :     {
     584         672 :         Word16 upper = target_band_grouping[target_band_idx + 1];
     585         672 :         Word16 lower = target_band_grouping[target_band_idx];
     586         672 :         Word16 source_band_in_target_band_cnt = 0;
     587         672 :         Word16 norm_fac_fx = 32767; // 1.Q15
     588         672 :         source_band_cnt_total = 0;
     589         672 :         move16();
     590         672 :         move16();
     591         672 :         move16();
     592             : 
     593        3752 :         FOR( source_band_idx = 0; source_band_idx < n_source_bands; source_band_idx++ )
     594             :         {
     595             :             /* find lowest corresponding source band*/
     596        3752 :             test();
     597        3752 :             IF( LE_16( source_band_grouping[source_band_idx], lower ) && GE_16( source_band_grouping[source_band_idx + 1], lower ) )
     598             :             {
     599             :                 DO
     600             :                 {
     601        1680 :                     Word16 source_bands_in_target_band = sub( s_min( source_band_grouping[source_band_idx + 1], upper ), s_max( source_band_grouping[source_band_idx], lower ) );
     602        1680 :                     IF( source_bands_in_target_band )
     603             :                     {
     604         896 :                         source_band_cnt_total = add( source_band_cnt_total, source_bands_in_target_band );
     605         896 :                         parameter_band_mapping->source_band_idx[target_band_idx][source_band_in_target_band_cnt] = source_band_idx;
     606         896 :                         parameter_band_mapping->source_band_factor_fx[target_band_idx][source_band_in_target_band_cnt++] = shl( source_bands_in_target_band, 10 ); /*Q10*/
     607         896 :                         move16();
     608         896 :                         move16();
     609             :                     }
     610        1680 :                     source_band_idx++;
     611             :                 }
     612        1680 :                 WHILE( LE_16( source_band_grouping[source_band_idx], upper ) && LT_16( source_band_idx, n_source_bands ) );
     613         672 :                 BREAK;
     614             :             }
     615             :         }
     616         672 :         norm_fac_fx = div_s( 1, source_band_cnt_total ); /*Q15*/
     617        1568 :         FOR( source_band_idx = 0; source_band_idx < source_band_in_target_band_cnt; source_band_idx++ )
     618             :         {
     619         896 :             parameter_band_mapping->source_band_factor_fx[target_band_idx][source_band_idx] = shl_sat( mult( parameter_band_mapping->source_band_factor_fx[target_band_idx][source_band_idx], norm_fac_fx ) /*Q10*/, 5 ); /*Q15*/
     620         896 :             move16();
     621             :         }
     622         672 :         parameter_band_mapping->n_source_bands[target_band_idx] = source_band_in_target_band_cnt;
     623         672 :         move16();
     624             :     }
     625          56 :     return;
     626             : }
     627             : 
     628             : 
     629             : /*-------------------------------------------------------------------------
     630             :  * ivas_param_mc_dec_reconfig()
     631             :  *
     632             :  * Reconfiguration of ParamMC decoder
     633             :  *-------------------------------------------------------------------------*/
     634             : 
     635          56 : ivas_error ivas_param_mc_dec_reconfig_fx(
     636             :     Decoder_Struct *st_ivas /* i/o: IVAS decoder structure  */
     637             : )
     638             : {
     639             :     Word16 k, nchan_transport;
     640             :     PARAM_MC_DEC_HANDLE hParamMC;
     641             :     Word16 nchan_out_transport;
     642             :     Word16 nchan_out_cov;
     643             :     Word32 proto_matrix_fx[MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS];
     644             :     Word32 proto_mtx_norm_fx;
     645             :     Word16 max_param_band_residual;
     646             :     UWord16 config_index;
     647             :     MC_LS_SETUP mc_ls_setup;
     648             :     Word32 output_Fs, ivas_total_brate;
     649             :     ivas_error error;
     650             :     Word16 nchan_transport_old;
     651             :     Word16 num_param_bands_old;
     652             :     PARAM_MC_PARAMETER_BAND_MAPPING parameter_band_mapping;
     653             :     Word16 band_grouping_old[20 + 1];
     654             : 
     655          56 :     hParamMC = st_ivas->hParamMC;
     656          56 :     error = IVAS_ERR_OK;
     657          56 :     move32();
     658             :     /* save important config information from the previous state */
     659          56 :     nchan_transport_old = st_ivas->nchan_transport;
     660          56 :     move32();
     661          56 :     num_param_bands_old = hParamMC->hMetadataPMC->num_parameter_bands;
     662          56 :     move32();
     663             : 
     664             :     /*-----------------------------------------------------------------*
     665             :      * prepare library opening
     666             :      *-----------------------------------------------------------------*/
     667             : 
     668          56 :     output_Fs = st_ivas->hDecoderConfig->output_Fs;
     669          56 :     move32();
     670          56 :     ivas_total_brate = st_ivas->hDecoderConfig->ivas_total_brate;
     671          56 :     move32();
     672          56 :     mc_ls_setup = ivas_mc_map_output_config_to_mc_ls_setup_fx( st_ivas->transport_config );
     673          56 :     nchan_out_transport = add( st_ivas->hTransSetup.nchan_out_woLFE, st_ivas->hTransSetup.num_lfe );
     674             : 
     675          56 :     test();
     676          56 :     IF( EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     677             :     {
     678           0 :         nchan_out_cov = add( st_ivas->hOutSetup.nchan_out_woLFE, st_ivas->hOutSetup.num_lfe );
     679             :     }
     680             :     ELSE
     681             :     {
     682          56 :         nchan_out_cov = nchan_out_transport;
     683          56 :         move16();
     684             :     }
     685             : 
     686          56 :     st_ivas->nchan_transport = ivas_param_mc_getNumTransportChannels_fx( ivas_total_brate, mc_ls_setup );
     687          56 :     move16();
     688          56 :     config_index = ivas_param_mc_get_configuration_index_fx( mc_ls_setup, ivas_total_brate );
     689          56 :     nchan_transport = st_ivas->nchan_transport;
     690          56 :     move16();
     691             : 
     692          56 :     SWITCH( nchan_transport )
     693             :     {
     694           0 :         case 4:
     695             :         case 3:
     696           0 :             st_ivas->nCPE = 2;
     697           0 :             move16();
     698           0 :             st_ivas->nSCE = 0;
     699           0 :             move16();
     700           0 :             st_ivas->element_mode_init = IVAS_CPE_MDCT;
     701           0 :             move16();
     702           0 :             BREAK;
     703          56 :         case 2:
     704          56 :             st_ivas->nCPE = 1;
     705          56 :             move16();
     706          56 :             st_ivas->nSCE = 0;
     707          56 :             move16();
     708          56 :             st_ivas->element_mode_init = IVAS_CPE_MDCT;
     709          56 :             move16();
     710             : 
     711          56 :             BREAK;
     712             :     }
     713             : 
     714             :     /*-----------------------------------------------------------------*
     715             :      * set input parameters
     716             :      *-----------------------------------------------------------------*/
     717          56 :     hParamMC->num_freq_bands = shr( add( (Word16) Mpy_32_32( output_Fs, INV_CLDFB_BANDWIDTH_Q31 << 1 ), 1 ), 1 ); // Q0
     718          56 :     move16();
     719          56 :     hParamMC->max_band_energy_compensation = hParamMC->num_freq_bands;
     720          56 :     move16();
     721             : 
     722          56 :     Copy( hParamMC->band_grouping, band_grouping_old, add( hParamMC->hMetadataPMC->num_parameter_bands, 1 ) );
     723          56 :     ivas_param_mc_metadata_open_fx( mc_ls_setup, ivas_total_brate, hParamMC->hMetadataPMC );
     724             :     /* Band Grouping */
     725          56 :     IF( EQ_16( hParamMC->hMetadataPMC->num_parameter_bands, 20 ) )
     726             :     {
     727           0 :         Copy( param_mc_band_grouping_20, hParamMC->band_grouping, 20 + 1 );
     728             :     }
     729          56 :     ELSE IF( EQ_16( hParamMC->hMetadataPMC->num_parameter_bands, 14 ) )
     730             :     {
     731          28 :         Copy( param_mc_band_grouping_14, hParamMC->band_grouping, 14 + 1 );
     732             :     }
     733          28 :     ELSE IF( EQ_16( hParamMC->hMetadataPMC->num_parameter_bands, 10 ) )
     734             :     {
     735          28 :         Copy( param_mc_band_grouping_10, hParamMC->band_grouping, 10 + 1 );
     736             :     }
     737             :     ELSE
     738             :     {
     739           0 :         assert( 0 && "nbands must be 20, 14, or 10!" );
     740             :     }
     741             : 
     742          56 :     ivas_param_mc_get_param_band_mapping( hParamMC->hMetadataPMC->num_parameter_bands, hParamMC->band_grouping, num_param_bands_old, band_grouping_old, &parameter_band_mapping );
     743             : 
     744          56 :     test();
     745          56 :     IF( NE_16( nchan_transport_old, nchan_transport ) || NE_16( num_param_bands_old, hParamMC->hMetadataPMC->num_parameter_bands ) )
     746             :     {
     747          56 :         Word16 *ild_q_old_fx = hParamMC->icld_q_fx; // Q8
     748          56 :         Word16 *icc_q_old_fx = hParamMC->icc_q_fx;  // Q15
     749             : 
     750          56 :         IF( ( hParamMC->icc_q_fx = (Word16 *) malloc( hParamMC->hMetadataPMC->num_parameter_bands * hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe * sizeof( Word16 ) ) ) == NULL )
     751             :         {
     752           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     753             :         }
     754          56 :         IF( ( hParamMC->icld_q_fx = (Word16 *) malloc( hParamMC->hMetadataPMC->num_parameter_bands * hParamMC->hMetadataPMC->ild_mapping_conf->ild_map_size_lfe * sizeof( Word16 ) ) ) == NULL )
     755             :         {
     756           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     757             :         }
     758          56 :         set16_fx( hParamMC->icld_q_fx, PARAM_MC_DEFAULT_MIN_ILD_FX, hParamMC->hMetadataPMC->num_parameter_bands * hParamMC->hMetadataPMC->ild_mapping_conf->ild_map_size_lfe ); /*Q8*/
     759          56 :         set16_fx( hParamMC->icc_q_fx, 0, hParamMC->hMetadataPMC->num_parameter_bands * hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe );                            /*Q15*/
     760             : 
     761             :         /* map old to new parameter banding, only for same number of TCs, needs some more thought for a changing number of TCs */
     762          56 :         test();
     763          56 :         IF( NE_16( num_param_bands_old, hParamMC->hMetadataPMC->num_parameter_bands ) && EQ_16( nchan_transport_old, nchan_transport ) )
     764             :         {
     765             :             Word16 new_param_band_idx, param_idx, source_param_idx;
     766             :             Word16 num_param_lfe;
     767          56 :             Word16 *p_icc_new_fx = hParamMC->icc_q_fx;  // Q15
     768          56 :             Word16 *p_ild_new_fx = hParamMC->icld_q_fx; // Q8
     769          56 :             Word16 p_ild_new_e = 23;
     770          56 :             move16();
     771             :             Word16 p_ild_new_tmp;
     772             : 
     773             :             /* ICC */
     774          56 :             num_param_lfe = hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe;
     775          56 :             move16();
     776         728 :             FOR( new_param_band_idx = 0; new_param_band_idx < hParamMC->hMetadataPMC->num_parameter_bands; new_param_band_idx++ )
     777             :             {
     778        4032 :                 FOR( param_idx = 0; param_idx < num_param_lfe; param_idx++ )
     779             :                 {
     780        3360 :                     *p_icc_new_fx = 0;
     781        3360 :                     move16();
     782        7840 :                     FOR( source_param_idx = 0; source_param_idx < parameter_band_mapping.n_source_bands[new_param_band_idx]; source_param_idx++ )
     783             :                     {
     784        4480 :                         *p_icc_new_fx = add( *p_icc_new_fx, mult( icc_q_old_fx[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx] * num_param_lfe + param_idx], parameter_band_mapping.source_band_factor_fx[new_param_band_idx][source_param_idx] ) ); /*Q15*/
     785        4480 :                         move16();
     786             :                     }
     787        3360 :                     p_icc_new_fx++;
     788             :                 }
     789             :             }
     790             : 
     791             :             /* ILD */
     792          56 :             num_param_lfe = hParamMC->hMetadataPMC->ild_mapping_conf->ild_map_size_lfe;
     793          56 :             move16();
     794         728 :             FOR( new_param_band_idx = 0; new_param_band_idx < hParamMC->hMetadataPMC->num_parameter_bands; new_param_band_idx++ )
     795             :             {
     796        4704 :                 FOR( param_idx = 0; param_idx < num_param_lfe; param_idx++ )
     797             :                 {
     798        4032 :                     *p_ild_new_fx = 0;
     799        4032 :                     move16();
     800        9408 :                     FOR( source_param_idx = 0; source_param_idx < parameter_band_mapping.n_source_bands[new_param_band_idx]; source_param_idx++ )
     801             :                     {
     802        5376 :                         p_ild_new_tmp = extract_h( BASOP_util_Pow2( L_mult0( 10885 /*log2(10)/10*2^15*/, ild_q_old_fx[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx] * num_param_lfe + param_idx] ), 8, &p_ild_new_e ) ); // 31 - p_ild_new_e - 16
     803        5376 :                         *p_ild_new_fx = add( *p_ild_new_fx, mult( p_ild_new_tmp, parameter_band_mapping.source_band_factor_fx[new_param_band_idx][source_param_idx] ) );
     804        5376 :                         move16();
     805             :                     }
     806        4032 :                     *p_ild_new_fx = extract_l( L_shr( Mpy_32_16_1( L_add( BASOP_Util_Log2( *p_ild_new_fx ), L_add( 16 << Q25, L_shl( p_ild_new_e, 25 ) ) ), 24660 /*3.Q13*/ ), 15 ) ); // Q8
     807        4032 :                     move16();
     808        4032 :                     p_ild_new_fx++;
     809             :                 }
     810             :             }
     811             :         }
     812          56 :         free( ild_q_old_fx );
     813          56 :         free( icc_q_old_fx );
     814             :     }
     815             : 
     816          56 :     param_mc_set_num_synth_bands( output_Fs, hParamMC );
     817             : 
     818             :     /* set max parameter band for abs cov */
     819          56 :     k = 0;
     820          56 :     move16();
     821         504 :     WHILE( LE_16( hParamMC->band_grouping[k], PARAM_MC_MAX_BAND_ABS_COV_DEC ) )
     822             :     {
     823         448 :         hParamMC->max_param_band_abs_cov = k;
     824         448 :         move16();
     825         448 :         k = add( k, 1 );
     826             :     }
     827             : 
     828             :     /*-----------------------------------------------------------------*
     829             :      * open sub-modules
     830             :      *-----------------------------------------------------------------*/
     831             : 
     832             :     /* prototype signal computation */
     833             : 
     834          56 :     IF( EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     835             :     {
     836           0 :         IF( NE_16( nchan_transport_old, nchan_transport ) )
     837             :         {
     838           0 :             IF( st_ivas->hLsSetUpConversion != NULL )
     839             :             {
     840           0 :                 ivas_ls_setup_conversion_close_fx( &st_ivas->hLsSetUpConversion );
     841             :             }
     842             : 
     843           0 :             IF( NE_32( ( error = ivas_ls_setup_conversion_open_fx( st_ivas ) ), IVAS_ERR_OK ) )
     844             :             {
     845           0 :                 return error;
     846             :             }
     847             : 
     848             :             /* convert the ls conv dmx matrix into column order matrix format (nchan_out_cldfb x nchan_out) */
     849           0 :             free( hParamMC->ls_conv_dmx_matrix_fx );
     850             : 
     851           0 :             IF( ( hParamMC->ls_conv_dmx_matrix_fx = (Word32 *) malloc( nchan_out_transport * nchan_out_cov * sizeof( Word32 ) ) ) == NULL )
     852             :             {
     853           0 :                 return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     854             :             }
     855           0 :             FOR( k = 0; k < nchan_out_transport; k++ )
     856             :             {
     857           0 :                 Copy32( st_ivas->hLsSetUpConversion->dmxMtx_fx[k], &hParamMC->ls_conv_dmx_matrix_fx[k * nchan_out_cov], nchan_out_cov );
     858             :             }
     859             :         }
     860             :         /* convert ParamMC parameter bands to SFB */
     861             : 
     862           0 :         st_ivas->hLsSetUpConversion->sfbCnt = hParamMC->num_param_bands_synth;
     863           0 :         move16();
     864           0 :         FOR( k = 0; k <= hParamMC->num_param_bands_synth; k++ )
     865             :         {
     866           0 :             st_ivas->hLsSetUpConversion->sfbOffset[k] = imult1616( PARAM_MC_BAND_TO_MDCT_BAND_RATIO, hParamMC->band_grouping[k] );
     867           0 :             move16();
     868             :         }
     869           0 :         FOR( ; k < MAX_SFB + 2; k++ )
     870             :         {
     871           0 :             st_ivas->hLsSetUpConversion->sfbOffset[k] = 0;
     872           0 :             move16();
     873             :         }
     874             :     }
     875             : 
     876          56 :     IF( NE_16( nchan_transport_old, nchan_transport ) )
     877             :     {
     878           0 :         free( hParamMC->proto_matrix_int_fx );
     879           0 :         IF( ( hParamMC->proto_matrix_int_fx = (Word32 *) malloc( nchan_out_transport * nchan_transport * sizeof( Word32 ) ) ) == NULL )
     880             :         {
     881           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     882             :         }
     883           0 :         hParamMC->proto_matrix_int_len = imult1616( nchan_out_transport, nchan_transport );
     884           0 :         move16();
     885           0 :         Copy32( ivas_param_mc_conf[config_index].dmx_fac_fx, hParamMC->proto_matrix_int_fx, hParamMC->proto_matrix_int_len ); /*Q31*/
     886             :     }
     887             : 
     888          56 :     test();
     889          56 :     IF( EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     890             :     {
     891           0 :         Scale_sig32( hParamMC->ls_conv_dmx_matrix_fx, imult1616( nchan_out_transport, nchan_out_cov ), -4 ); // Q30 -> Q26
     892           0 :         matrix_product_fx( hParamMC->ls_conv_dmx_matrix_fx, nchan_out_cov, nchan_out_transport, 0,
     893             :                            ivas_param_mc_conf[config_index].dmx_fac_fx, nchan_out_transport, nchan_transport, 0,
     894             :                            proto_matrix_fx /*Q26*/ );
     895           0 :         Scale_sig32( hParamMC->ls_conv_dmx_matrix_fx, imult1616( nchan_out_transport, nchan_out_cov ), 4 ); // Q26 -> Q30
     896             : 
     897           0 :         IF( EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     898             :         {
     899           0 :             proto_mtx_norm_fx = ONE_IN_Q26; // Q26
     900           0 :             move32();
     901           0 :             FOR( k = 0; k < nchan_transport * nchan_out_cov; k++ )
     902             :             {
     903           0 :                 proto_mtx_norm_fx = L_max( L_abs( proto_mtx_norm_fx ), L_abs( proto_matrix_fx[k] ) ); // Q26
     904             :             }
     905           0 :             proto_mtx_norm_fx = divide3232( ONE_IN_Q26, proto_mtx_norm_fx ); /*Q15*/
     906             : 
     907             :             /* transfer flattened proto_matrix to 2D in hLsSetupConversion->dmxMtx */
     908           0 :             FOR( k = 0; k < nchan_transport; k++ )
     909             :             {
     910           0 :                 FOR( Word16 i = 0; i < nchan_out_cov; i++ )
     911             :                 {
     912           0 :                     st_ivas->hLsSetUpConversion->dmxMtx_fx[k][i] = L_shl( Mpy_32_16_1( proto_matrix_fx[k * nchan_out_cov + i], (Word16) proto_mtx_norm_fx ), 4 ); // Q26 -> Q30
     913           0 :                     move32();
     914             :                 }
     915             :             }
     916             :         }
     917             :     }
     918             :     ELSE
     919             :     {
     920          56 :         Copy32( ivas_param_mc_conf[config_index].dmx_fac_fx, proto_matrix_fx, imult1616( nchan_out_transport, nchan_transport ) ); // proto_matrix_fx -> Q31
     921          56 :         Scale_sig32( proto_matrix_fx, imult1616( nchan_out_transport, nchan_transport ), -5 );                                     // proto_matrix_fx -> Q26
     922             :     }
     923             : 
     924          56 :     test();
     925          56 :     IF( NE_16( nchan_transport_old, nchan_transport ) && NE_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
     926             :     {
     927             :         Word16 i;
     928             :         Word16 len;
     929             : 
     930             :         /* close decorrelator */
     931           0 :         ivas_dirac_dec_decorr_close_fx( &hParamMC->h_freq_domain_decorr_ap_params, &hParamMC->h_freq_domain_decorr_ap_state );
     932             : 
     933             :         /* deallocate diffuse prototype info */
     934           0 :         IF( hParamMC->diff_proto_info )
     935             :         {
     936           0 :             FOR( i = 0; i < hParamMC->diff_proto_info->num_protos_diff; i++ )
     937             :             {
     938           0 :                 free( hParamMC->diff_proto_info->source_chan_idx[i] );
     939           0 :                 hParamMC->diff_proto_info->source_chan_idx[i] = NULL;
     940             : 
     941           0 :                 free( hParamMC->diff_proto_info->proto_fac_fx[i] );
     942           0 :                 hParamMC->diff_proto_info->proto_fac_fx[i] = NULL;
     943             :             }
     944             : 
     945           0 :             free( hParamMC->diff_proto_info->source_chan_idx );
     946           0 :             hParamMC->diff_proto_info->source_chan_idx = NULL;
     947             : 
     948           0 :             free( hParamMC->diff_proto_info->proto_fac_fx );
     949           0 :             hParamMC->diff_proto_info->proto_fac_fx = NULL;
     950             : 
     951           0 :             free( hParamMC->diff_proto_info->proto_index_diff );
     952           0 :             hParamMC->diff_proto_info->proto_index_diff = NULL;
     953             : 
     954           0 :             free( hParamMC->diff_proto_info->num_source_chan_diff );
     955           0 :             hParamMC->diff_proto_info->num_source_chan_diff = NULL;
     956             : 
     957           0 :             free( hParamMC->diff_proto_info );
     958           0 :             hParamMC->diff_proto_info = NULL;
     959             :         }
     960             : 
     961           0 :         hParamMC->num_outputs_diff = nchan_out_cov;
     962           0 :         move16();
     963           0 :         IF( ( hParamMC->diff_proto_info = (PARAM_MC_DIFF_PROTO_INFO *) malloc( sizeof( PARAM_MC_DIFF_PROTO_INFO ) ) ) == NULL )
     964             :         {
     965           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
     966             :         }
     967           0 :         IF( ( param_mc_get_diff_proto_info_fx( proto_matrix_fx, nchan_transport, nchan_out_cov, hParamMC->diff_proto_info, Q26 ) ) != IVAS_ERR_OK )
     968             :         {
     969           0 :             return error;
     970             :         }
     971             : 
     972             :         /* decorrelation */
     973           0 :         hParamMC->h_freq_domain_decorr_ap_params = NULL;
     974           0 :         hParamMC->h_freq_domain_decorr_ap_state = NULL;
     975             : 
     976             :         Word16 frequency_axis_fx[CLDFB_NO_CHANNELS_MAX];
     977           0 :         ivas_dirac_dec_get_frequency_axis_fx( frequency_axis_fx, output_Fs, hParamMC->num_freq_bands ); // Q0
     978             : 
     979           0 :         IF( NE_32( ( error = ivas_dirac_dec_decorr_open_fx( &( hParamMC->h_freq_domain_decorr_ap_params ), &( hParamMC->h_freq_domain_decorr_ap_state ), hParamMC->num_freq_bands, hParamMC->num_outputs_diff,
     980             :                                                             hParamMC->diff_proto_info->num_protos_diff, DIRAC_SYNTHESIS_COV_MC_LS, frequency_axis_fx, nchan_transport, output_Fs ) ),
     981             :                    IVAS_ERR_OK ) )
     982             :         {
     983           0 :             return error;
     984             :         }
     985           0 :         hParamMC->h_output_synthesis_params.use_onset_filters = 0;
     986           0 :         move16();
     987           0 :         hParamMC->max_band_decorr = hParamMC->h_freq_domain_decorr_ap_params->max_band_decorr;
     988           0 :         move16();
     989             :         /* init decorrelation */
     990           0 :         IF( hParamMC->max_band_decorr > 0 )
     991             :         {
     992             : 
     993           0 :             len = imult1616( hParamMC->diff_proto_info->num_protos_diff, hParamMC->h_freq_domain_decorr_ap_params->h_onset_detection_power_params.max_band_decorr );
     994             : 
     995             :             /* init onsetDetectionPower */
     996           0 :             set_zero_fx( hParamMC->h_freq_domain_decorr_ap_state->h_onset_detection_power_state.onset_detector_1_fx, len );
     997           0 :             set_zero_fx( hParamMC->h_freq_domain_decorr_ap_state->h_onset_detection_power_state.onset_detector_2_fx, len );
     998           0 :             hParamMC->h_freq_domain_decorr_ap_state->h_onset_detection_power_state.q_onset_detector = Q31;
     999           0 :             move16();
    1000             :         }
    1001             :     }
    1002          56 :     hParamMC->max_band_energy_compensation = hParamMC->band_grouping[hParamMC->hMetadataPMC->nbands_coded];
    1003          56 :     move16();
    1004          56 :     max_param_band_residual = 0;
    1005          56 :     move16();
    1006             : 
    1007         196 :     FOR( k = hParamMC->hMetadataPMC->num_parameter_bands; k >= 0; k-- )
    1008             :     {
    1009         196 :         IF( LE_16( hParamMC->band_grouping[k], hParamMC->max_band_decorr ) )
    1010             :         {
    1011          56 :             max_param_band_residual = k;
    1012          56 :             move16();
    1013          56 :             assert( hParamMC->band_grouping[k] == hParamMC->max_band_decorr );
    1014          56 :             BREAK;
    1015             :         }
    1016             :     }
    1017             : 
    1018          56 :     test();
    1019          56 :     IF( NE_16( nchan_transport_old, nchan_transport ) || NE_16( num_param_bands_old, hParamMC->hMetadataPMC->num_parameter_bands ) )
    1020             :     {
    1021          56 :         DIRAC_OUTPUT_SYNTHESIS_COV_STATE cov_state_old = hParamMC->h_output_synthesis_cov_state;
    1022          56 :         DIRAC_OUTPUT_SYNTHESIS_PARAMS params_old = hParamMC->h_output_synthesis_params;
    1023             : 
    1024             :         Word32 tmp_buf_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS];
    1025             : 
    1026          56 :         set_zero_fx( tmp_buf_fx, MAX_CICP_CHANNELS * MAX_CICP_CHANNELS );
    1027             : 
    1028             :         /* output synthesis */
    1029          56 :         IF( NE_32( ( error = ivas_dirac_dec_output_synthesis_cov_open_fx( &( hParamMC->h_output_synthesis_params ), &( hParamMC->h_output_synthesis_cov_state ), hParamMC->max_band_decorr, PARAM_MC_MAX_NSLOTS,
    1030             :                                                                           hParamMC->hMetadataPMC->num_parameter_bands, max_param_band_residual, nchan_transport, nchan_out_cov, proto_matrix_fx ) ),
    1031             :                    IVAS_ERR_OK ) )
    1032             :         {
    1033           0 :             return error;
    1034             :         }
    1035             : 
    1036          56 :         ivas_param_mc_dec_compute_interpolator_fx( 0, 0, DEFAULT_JBM_CLDFB_TIMESLOTS, hParamMC->h_output_synthesis_params.interpolator_fx );
    1037             : 
    1038          56 :         ivas_dirac_dec_output_synthesis_cov_init_fx( &( hParamMC->h_output_synthesis_cov_state ), nchan_transport, nchan_out_cov, hParamMC->hMetadataPMC->num_parameter_bands, max_param_band_residual );
    1039             : 
    1040             :         /* map old to new parameter banding, only for same number of TCs, needs some more thought for changing number of TCs */
    1041          56 :         test();
    1042          56 :         IF( NE_16( num_param_bands_old, hParamMC->hMetadataPMC->num_parameter_bands ) && EQ_16( nchan_transport_old, nchan_transport ) )
    1043             :         {
    1044             :             Word16 new_param_band_idx, source_param_idx;
    1045             : 
    1046         728 :             FOR( new_param_band_idx = 0; new_param_band_idx < hParamMC->hMetadataPMC->num_parameter_bands; new_param_band_idx++ )
    1047             :             {
    1048        1568 :                 FOR( source_param_idx = 0; source_param_idx < parameter_band_mapping.n_source_bands[new_param_band_idx]; source_param_idx++ )
    1049             :                 {
    1050             :                     /* Cx */
    1051         896 :                     v_multc_fixed_16( cov_state_old.cx_old_fx[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], parameter_band_mapping.source_band_factor_fx[new_param_band_idx][source_param_idx], tmp_buf_fx, imult1616( nchan_transport_old, nchan_transport_old ) );                                                                                                                                                                                                    // Q(31 - cov_state_old.cx_old_e)
    1052         896 :                     v_add_fixed_me( tmp_buf_fx, cov_state_old.cx_old_e[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], hParamMC->h_output_synthesis_cov_state.cx_old_fx[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.cx_old_e[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.cx_old_fx[new_param_band_idx], &hParamMC->h_output_synthesis_cov_state.cx_old_e[new_param_band_idx], imult1616( nchan_transport_old, nchan_transport_old ), 0 ); // Q(31 - hParamMC->h_output_synthesis_cov_state.cx_old_e[new_param_band_idx])
    1053             :                     /* Cy */
    1054         896 :                     v_multc_fixed_16( cov_state_old.cy_old_fx[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], parameter_band_mapping.source_band_factor_fx[new_param_band_idx][source_param_idx], tmp_buf_fx, imult1616( nchan_out_cov, nchan_out_cov ) );                                                                                                                                                                                                    // Q(31 - cov_state_old.cy_old_e)
    1055         896 :                     v_add_fixed_me( tmp_buf_fx, cov_state_old.cy_old_e[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], hParamMC->h_output_synthesis_cov_state.cy_old_fx[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.cy_old_e[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.cy_old_fx[new_param_band_idx], &hParamMC->h_output_synthesis_cov_state.cy_old_e[new_param_band_idx], imult1616( nchan_out_cov, nchan_out_cov ), 0 ); // Q(31 - hParamMC->h_output_synthesis_cov_state.cy_old_e[new_param_band_idx])
    1056             :                     /* mixing matrix*/
    1057         896 :                     v_multc_fixed_16( cov_state_old.mixing_matrix_old_fx[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], parameter_band_mapping.source_band_factor_fx[new_param_band_idx][source_param_idx], tmp_buf_fx, imult1616( nchan_transport_old, nchan_out_cov ) );                                                                                                                                                                                                                                                      // Q(31 - mixing_matrix_old_exp)
    1058         896 :                     v_add_fixed_me( tmp_buf_fx, cov_state_old.mixing_matrix_old_exp[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], hParamMC->h_output_synthesis_cov_state.mixing_matrix_old_fx[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.mixing_matrix_old_exp[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.mixing_matrix_old_fx[new_param_band_idx], &hParamMC->h_output_synthesis_cov_state.mixing_matrix_old_exp[new_param_band_idx], imult1616( nchan_transport_old, nchan_out_cov ), 0 ); // Q(31 - hParamMC->h_output_synthesis_cov_state.mixing_matrix_old_exp[new_param_band_idx])
    1059             :                 }
    1060             :             }
    1061         588 :             FOR( new_param_band_idx = 0; new_param_band_idx < max_param_band_residual; new_param_band_idx++ )
    1062             :             {
    1063        1260 :                 FOR( source_param_idx = 0; source_param_idx < parameter_band_mapping.n_source_bands[new_param_band_idx]; source_param_idx++ )
    1064             :                 {
    1065             :                     /* residual mixing matrix*/
    1066         728 :                     v_multc_fixed_16( cov_state_old.mixing_matrix_res_old_fx[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], parameter_band_mapping.source_band_factor_fx[new_param_band_idx][source_param_idx], tmp_buf_fx, imult1616( nchan_out_cov, nchan_out_cov ) );                                                                                                                                                                                                                                                                      // Q(31 - mixing_matrix_res_old_exp)
    1067         728 :                     v_add_fixed_me( tmp_buf_fx, cov_state_old.mixing_matrix_res_old_exp[parameter_band_mapping.source_band_idx[new_param_band_idx][source_param_idx]], hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_old_fx[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_old_exp[new_param_band_idx], hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_old_fx[new_param_band_idx], &hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_old_exp[new_param_band_idx], imult1616( nchan_out_cov, nchan_out_cov ), 0 ); // Q(hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_old_exp[new_param_band_idx])
    1068             :                 }
    1069             :             }
    1070             :         }
    1071          56 :         ivas_dirac_dec_output_synthesis_cov_close_fx( &params_old, &cov_state_old );
    1072             :     }
    1073             : 
    1074             :     /*-----------------------------------------------------------------*
    1075             :      * memory allocation
    1076             :      *-----------------------------------------------------------------*/
    1077             : 
    1078          56 :     test();
    1079          56 :     IF( ( hParamMC->max_band_decorr > 0 ) && NE_16( nchan_transport_old, nchan_transport ) )
    1080             :     {
    1081           0 :         free( hParamMC->proto_frame_f_fx );
    1082           0 :         IF( ( hParamMC->proto_frame_f_fx = (Word32 *) malloc( 2 * hParamMC->diff_proto_info->num_protos_diff * hParamMC->num_freq_bands * sizeof( Word32 ) ) ) == NULL )
    1083             :         {
    1084           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
    1085             :         }
    1086           0 :         set_zero_fx( hParamMC->proto_frame_f_fx, shl( imult1616( hParamMC->diff_proto_info->num_protos_diff, hParamMC->num_freq_bands ), 1 ) );
    1087             :     }
    1088             : 
    1089             : 
    1090          56 :     IF( NE_16( nchan_transport_old, nchan_transport ) )
    1091             :     {
    1092           0 :         IF( NE_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
    1093             :         {
    1094             :             Word16 n_cldfb_slots;
    1095           0 :             IF( hParamMC->Cldfb_RealBuffer_tc_fx != NULL )
    1096             :             {
    1097           0 :                 free( hParamMC->Cldfb_RealBuffer_tc_fx );
    1098           0 :                 hParamMC->Cldfb_RealBuffer_tc_fx = NULL; // Q12
    1099             :             }
    1100           0 :             IF( hParamMC->Cldfb_ImagBuffer_tc_fx != NULL )
    1101             :             {
    1102           0 :                 free( hParamMC->Cldfb_ImagBuffer_tc_fx );
    1103           0 :                 hParamMC->Cldfb_ImagBuffer_tc_fx = NULL; // Q12
    1104             :             }
    1105             : 
    1106           0 :             n_cldfb_slots = DEFAULT_JBM_CLDFB_TIMESLOTS;
    1107           0 :             move16();
    1108           0 :             IF( st_ivas->hDecoderConfig->Opt_tsm )
    1109             :             {
    1110           0 :                 n_cldfb_slots = MAX_JBM_CLDFB_TIMESLOTS;
    1111           0 :                 move16();
    1112             :             }
    1113           0 :             Word16 cldfb_size = imult1616( imult1616( n_cldfb_slots, nchan_transport ), hParamMC->num_freq_bands );
    1114           0 :             IF( ( hParamMC->Cldfb_RealBuffer_tc_fx = (Word32 *) malloc( cldfb_size * sizeof( Word32 ) ) ) == NULL )
    1115             :             {
    1116           0 :                 return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC JBM\n" ) );
    1117             :             }
    1118           0 :             set_zero_fx( hParamMC->Cldfb_RealBuffer_tc_fx, cldfb_size );
    1119             : 
    1120           0 :             IF( ( hParamMC->Cldfb_ImagBuffer_tc_fx = (Word32 *) malloc( cldfb_size * sizeof( Word32 ) ) ) == NULL )
    1121             :             {
    1122           0 :                 return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC JBM\n" ) );
    1123             :             }
    1124           0 :             set_zero_fx( hParamMC->Cldfb_ImagBuffer_tc_fx, cldfb_size );
    1125             :         }
    1126             :         ELSE
    1127             :         {
    1128           0 :             IF( hParamMC->Cldfb_RealBuffer_tc_fx != NULL )
    1129             :             {
    1130           0 :                 free( hParamMC->Cldfb_RealBuffer_tc_fx );
    1131           0 :                 hParamMC->Cldfb_RealBuffer_tc_fx = NULL;
    1132             :             }
    1133           0 :             IF( hParamMC->Cldfb_ImagBuffer_tc_fx != NULL )
    1134             :             {
    1135           0 :                 free( hParamMC->Cldfb_ImagBuffer_tc_fx );
    1136           0 :                 hParamMC->Cldfb_ImagBuffer_tc_fx = NULL;
    1137             :             }
    1138             :         }
    1139             :     }
    1140          56 :     return error;
    1141             : }
    1142             : 
    1143             : 
    1144             : /*-------------------------------------------------------------------------
    1145             :  * param_mc_get_num_cldfb_syntheses()
    1146             :  *
    1147             :  * calculate the necessary number of CLDFB synthesis instances
    1148             :  *------------------------------------------------------------------------*/
    1149             : 
    1150             : /*! r: number of cldfb synthesis instances */
    1151         282 : Word16 param_mc_get_num_cldfb_syntheses_fx(
    1152             :     Decoder_Struct *st_ivas /* i  : Parametric MC handle */
    1153             : )
    1154             : {
    1155             :     Word16 num_cldfb_syntheses;
    1156             : 
    1157         282 :     num_cldfb_syntheses = 0;
    1158         282 :     move16();
    1159             : 
    1160             :     /* sanity check*/
    1161         282 :     IF( st_ivas->hParamMC == NULL )
    1162             :     {
    1163           0 :         assert( 0 && "ParamMC handle does not exist!\n" );
    1164             :     }
    1165             : 
    1166         282 :     test();
    1167         282 :     IF( EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) )
    1168             :     {
    1169           0 :         num_cldfb_syntheses = 2;
    1170           0 :         move16();
    1171             :     }
    1172         282 :     ELSE IF( EQ_32( st_ivas->renderer_type, RENDERER_SBA_LINEAR_ENC ) )
    1173             :     {
    1174         144 :         num_cldfb_syntheses = add( st_ivas->hTransSetup.nchan_out_woLFE, st_ivas->hTransSetup.num_lfe );
    1175             :     }
    1176         138 :     ELSE IF( EQ_32( st_ivas->renderer_type, RENDERER_MC_PARAMMC ) )
    1177             :     {
    1178         138 :         num_cldfb_syntheses = add( st_ivas->hOutSetup.nchan_out_woLFE, st_ivas->hOutSetup.num_lfe );
    1179             :     }
    1180             : 
    1181         282 :     return num_cldfb_syntheses;
    1182             : }
    1183             : 
    1184             : 
    1185             : /*-------------------------------------------------------------------------
    1186             :  * ivas_param_mc_dec_close()
    1187             :  *
    1188             :  * Close Parametric MC memories
    1189             :  *------------------------------------------------------------------------*/
    1190             : 
    1191         836 : void ivas_param_mc_dec_close_fx(
    1192             :     PARAM_MC_DEC_HANDLE *hParamMC_out /* i/o: Parametric MC decoder handle   */
    1193             : )
    1194             : {
    1195             :     UWord16 i;
    1196             :     PARAM_MC_DEC_HANDLE hParamMC;
    1197             : 
    1198         836 :     IF( hParamMC_out == NULL || *hParamMC_out == NULL )
    1199             :     {
    1200         595 :         return;
    1201             :     }
    1202             : 
    1203         241 :     hParamMC = *hParamMC_out;
    1204             : 
    1205             :     /* close sub-modules */
    1206         241 :     ivas_dirac_dec_output_synthesis_cov_close_fx( &hParamMC->h_output_synthesis_params, &hParamMC->h_output_synthesis_cov_state );
    1207             : 
    1208         241 :     IF( hParamMC->h_freq_domain_decorr_ap_params != NULL || hParamMC->h_freq_domain_decorr_ap_state != NULL )
    1209             :     {
    1210         239 :         ivas_dirac_dec_decorr_close_fx( &hParamMC->h_freq_domain_decorr_ap_params, &hParamMC->h_freq_domain_decorr_ap_state );
    1211             :     }
    1212             : 
    1213             :     /* parameter decoding */
    1214         241 :     IF( hParamMC->hMetadataPMC != NULL )
    1215             :     {
    1216         241 :         free( hParamMC->hMetadataPMC );
    1217         241 :         hParamMC->hMetadataPMC = NULL;
    1218             :     }
    1219         241 :     IF( hParamMC->icc_q_fx != NULL )
    1220             :     {
    1221         241 :         free( hParamMC->icc_q_fx );
    1222         241 :         hParamMC->icc_q_fx = NULL; // Q15
    1223             :     }
    1224             : 
    1225         241 :     IF( hParamMC->icld_q_fx != NULL )
    1226             :     {
    1227         241 :         free( hParamMC->icld_q_fx );
    1228         241 :         hParamMC->icld_q_fx = NULL; // Q8
    1229             :     }
    1230             :     /* diffuse prototype info */
    1231         241 :     IF( hParamMC->diff_proto_info )
    1232             :     {
    1233         958 :         FOR( i = 0; i < hParamMC->diff_proto_info->num_protos_diff; i++ )
    1234             :         {
    1235         719 :             free( hParamMC->diff_proto_info->source_chan_idx[i] );
    1236         719 :             hParamMC->diff_proto_info->source_chan_idx[i] = NULL;
    1237             : 
    1238         719 :             free( hParamMC->diff_proto_info->proto_fac_fx[i] );
    1239         719 :             hParamMC->diff_proto_info->proto_fac_fx[i] = NULL;
    1240             :         }
    1241             : 
    1242         239 :         free( hParamMC->diff_proto_info->source_chan_idx );
    1243         239 :         hParamMC->diff_proto_info->source_chan_idx = NULL;
    1244             : 
    1245         239 :         free( hParamMC->diff_proto_info->proto_fac_fx );
    1246         239 :         hParamMC->diff_proto_info->proto_fac_fx = NULL;
    1247             : 
    1248         239 :         free( hParamMC->diff_proto_info->proto_index_diff );
    1249         239 :         hParamMC->diff_proto_info->proto_index_diff = NULL;
    1250             : 
    1251         239 :         free( hParamMC->diff_proto_info->num_source_chan_diff );
    1252         239 :         hParamMC->diff_proto_info->num_source_chan_diff = NULL;
    1253             : 
    1254         239 :         free( hParamMC->diff_proto_info );
    1255         239 :         hParamMC->diff_proto_info = NULL;
    1256             :     }
    1257             :     /* States */
    1258             :     /* free prototype signal buffers */
    1259         241 :     IF( hParamMC->proto_frame_f_fx != NULL )
    1260             :     {
    1261         239 :         free( hParamMC->proto_frame_f_fx );
    1262         239 :         hParamMC->proto_frame_f_fx = NULL;
    1263             :     }
    1264             : 
    1265         241 :     IF( hParamMC->proto_frame_dec_f_fx != NULL )
    1266             :     {
    1267         239 :         free( hParamMC->proto_frame_dec_f_fx );
    1268         239 :         hParamMC->proto_frame_dec_f_fx = NULL;
    1269             :     }
    1270             : 
    1271         241 :     IF( hParamMC->ls_conv_dmx_matrix_fx != NULL )
    1272             :     {
    1273           3 :         free( hParamMC->ls_conv_dmx_matrix_fx );
    1274           3 :         hParamMC->ls_conv_dmx_matrix_fx = NULL;
    1275             :     }
    1276             : 
    1277         241 :     IF( hParamMC->proto_matrix_int_fx != NULL )
    1278             :     {
    1279         241 :         free( hParamMC->proto_matrix_int_fx );
    1280         241 :         hParamMC->proto_matrix_int_fx = NULL;
    1281             :     }
    1282             : 
    1283         241 :     IF( hParamMC->hoa_encoder_fx != NULL )
    1284             :     {
    1285           9 :         free( hParamMC->hoa_encoder_fx );
    1286           9 :         hParamMC->hoa_encoder_fx = NULL;
    1287             :     }
    1288         241 :     IF( hParamMC->Cldfb_RealBuffer_tc_fx != NULL )
    1289             :     {
    1290         239 :         free( hParamMC->Cldfb_RealBuffer_tc_fx );
    1291         239 :         hParamMC->Cldfb_RealBuffer_tc_fx = NULL;
    1292             :     }
    1293         241 :     IF( hParamMC->Cldfb_ImagBuffer_tc_fx != NULL )
    1294             :     {
    1295         239 :         free( hParamMC->Cldfb_ImagBuffer_tc_fx );
    1296         239 :         hParamMC->Cldfb_ImagBuffer_tc_fx = NULL;
    1297             :     }
    1298             : 
    1299         241 :     free( *hParamMC_out );
    1300         241 :     *hParamMC_out = NULL;
    1301             : 
    1302         241 :     return;
    1303             : }
    1304             : 
    1305             : 
    1306             : /*-------------------------------------------------------------------------
    1307             :  * ivas_param_mc_dec_read_BS()
    1308             :  *
    1309             :  * Read the Parametric MC metadata
    1310             :  *------------------------------------------------------------------------*/
    1311             : 
    1312        8780 : void ivas_param_mc_dec_read_BS_fx(
    1313             :     const Word32 ivas_total_brate, /* i  : IVAS total bitrate      */
    1314             :     Decoder_State *st,             /* i/o: decoder state structure */
    1315             :     PARAM_MC_DEC_HANDLE hParamMC,  /* i/o: decoder ParamMC handle  */
    1316             :     Word16 *nb_bits                /* o  : number of bits written  */
    1317             : )
    1318             : {
    1319             :     Word16 param_frame_idx;
    1320             :     Word16 band_step;
    1321             :     UWord16 bit_buffer[PARAM_MC_MAX_BITS];
    1322             :     Word16 bits_to_copy;
    1323             :     Word16 bit_pos;
    1324             :     Word16 num_lfe_bands;
    1325             :     Word16 num_param_bands;
    1326             :     Word16 metadata_bit_pos;
    1327             :     Word16 i, j, k;
    1328             :     Word16 icc_map_size;
    1329             :     Word16 icc_map_size_wo_lfe;
    1330             :     Word16 ild_map_size;
    1331             :     Word16 ild_map_size_wo_lfe;
    1332             :     HANDLE_IVAS_PARAM_MC_METADATA hMetadataPMC;
    1333             : 
    1334        8780 :     push_wmops( "param_mc_read_bs" );
    1335             : 
    1336             :     /* Inits */
    1337        8780 :     *nb_bits = 0;
    1338        8780 :     move16();
    1339        8780 :     hMetadataPMC = hParamMC->hMetadataPMC;
    1340        8780 :     icc_map_size = hMetadataPMC->icc_mapping_conf->icc_map_size_lfe;
    1341        8780 :     move16();
    1342        8780 :     icc_map_size_wo_lfe = hMetadataPMC->icc_mapping_conf->icc_map_size_wo_lfe;
    1343        8780 :     move16();
    1344        8780 :     ild_map_size = hMetadataPMC->ild_mapping_conf->ild_map_size_lfe;
    1345        8780 :     move16();
    1346        8780 :     ild_map_size_wo_lfe = hMetadataPMC->ild_mapping_conf->ild_map_size_wo_lfe;
    1347        8780 :     move16();
    1348             : 
    1349        8780 :     IF( !st->bfi )
    1350             :     {
    1351             :         /*metadata_bit_pos = extract_l(ivas_total_brate / FRAMES_PER_SEC - 1);
    1352             :         bits_to_copy = s_min(extract_l(ivas_total_brate / FRAMES_PER_SEC), PARAM_MC_MAX_BITS);*/
    1353        8750 :         Word16 temp = extract_l( Mpy_32_32_r( ivas_total_brate, ONE_BY_FRAMES_PER_SEC_Q31 ) );
    1354        8750 :         metadata_bit_pos = sub( temp, 1 );
    1355        8750 :         bits_to_copy = s_min( temp, PARAM_MC_MAX_BITS );
    1356             : 
    1357             :         /* copy and reverse metadata */
    1358     8854126 :         FOR( bit_pos = 0; bit_pos < bits_to_copy; bit_pos++ )
    1359             :         {
    1360     8845376 :             bit_buffer[bit_pos] = st->bit_stream[metadata_bit_pos];
    1361     8845376 :             move16();
    1362     8845376 :             metadata_bit_pos = sub( metadata_bit_pos, 1 );
    1363     8845376 :             move16();
    1364             :         }
    1365             : 
    1366        8750 :         bit_pos = 0;
    1367        8750 :         move16();
    1368             : 
    1369             :         /* read reserved bit */
    1370        8750 :         hMetadataPMC->lfe_on = bit_buffer[bit_pos++];
    1371        8750 :         move16();
    1372             : 
    1373             :         /* get coded bwidth */
    1374             :         {
    1375             :             Word16 pos;
    1376        8750 :             Word16 bw = 0;
    1377        8750 :             move16();
    1378       26250 :             FOR( pos = 0; pos < 2; pos++ )
    1379             :             {
    1380       17500 :                 bw = add( bw, extract_l( L_shl( bit_buffer[bit_pos++], pos ) ) );
    1381             :             }
    1382        8750 :             hMetadataPMC->coded_bwidth = bw;
    1383        8750 :             move16();
    1384             :         }
    1385             : 
    1386             :         /* set tables if coded band width differs from last frame */
    1387        8750 :         IF( NE_16( hMetadataPMC->coded_bwidth, hMetadataPMC->last_coded_bwidth ) )
    1388             :         {
    1389          68 :             ivas_param_mc_set_coded_bands_fx( hMetadataPMC );
    1390          68 :             param_mc_set_num_synth_bands( st->output_Fs, hParamMC );
    1391          68 :             hParamMC->max_band_energy_compensation = hParamMC->band_grouping[hParamMC->num_param_bands_synth];
    1392          68 :             move16();
    1393             :         }
    1394             : 
    1395        8750 :         param_frame_idx = bit_buffer[bit_pos++];
    1396        8750 :         move16();
    1397        8750 :         hMetadataPMC->param_frame_idx = param_frame_idx;
    1398        8750 :         move16();
    1399        8750 :         num_param_bands = hMetadataPMC->nbands_in_param_frame[param_frame_idx];
    1400        8750 :         move16();
    1401             : 
    1402        8750 :         hMetadataPMC->bAttackPresent = bit_buffer[bit_pos++];
    1403        8750 :         move16();
    1404        8750 :         hMetadataPMC->attackIndex = 0;
    1405        8750 :         move16();
    1406        8750 :         band_step = 1;
    1407        8750 :         move16();
    1408        8750 :         num_lfe_bands = 0;
    1409        8750 :         move16();
    1410             : 
    1411        8750 :         IF( hMetadataPMC->bAttackPresent )
    1412             :         {
    1413        1644 :             FOR( i = 2; i >= 0; i-- )
    1414             :             {
    1415        1233 :                 hMetadataPMC->attackIndex = add( hMetadataPMC->attackIndex, extract_l( L_shl( bit_buffer[bit_pos++], i ) ) );
    1416             :             }
    1417             : 
    1418         411 :             band_step = PARAM_MC_TRANSIENT_BAND_STEP;
    1419         411 :             move16();
    1420             : 
    1421             :             /*num_lfe_bands = add(PARAM_MC_MAX_BAND_LFE / band_step, (PARAM_MC_MAX_BAND_LFE % band_step) ? 1 : 0);
    1422             :             num_param_bands = add(hMetadataPMC->nbands_coded / band_step, ((hMetadataPMC->nbands_coded % band_step) ? 1 : 0));*/
    1423             :             Word16 temp_e;
    1424         411 :             temp = BASOP_Util_Divide3232_Scale( PARAM_MC_MAX_BAND_LFE, band_step, &temp_e );
    1425         411 :             temp = shr( temp, sub( 15, temp_e ) );
    1426             :             Word16 temp1;
    1427         411 :             IF( PARAM_MC_MAX_BAND_LFE % band_step )
    1428             :             {
    1429         411 :                 temp1 = 1;
    1430             :             }
    1431             :             ELSE
    1432             :             {
    1433           0 :                 temp1 = 0;
    1434             :             }
    1435         411 :             move16();
    1436         411 :             num_lfe_bands = add( temp, temp1 );
    1437             : 
    1438         411 :             temp = BASOP_Util_Divide3232_Scale( hMetadataPMC->nbands_coded, band_step, &temp_e );
    1439         411 :             temp = shr( temp, sub( 15, temp_e ) );
    1440             :             Word16 temp2;
    1441         411 :             IF( hMetadataPMC->nbands_coded % band_step )
    1442             :             {
    1443          42 :                 temp2 = 1;
    1444             :             }
    1445             :             ELSE
    1446             :             {
    1447         369 :                 temp2 = 0;
    1448             :             }
    1449         411 :             move16();
    1450         411 :             num_param_bands = add( temp, temp2 );
    1451             :         }
    1452             :         ELSE
    1453             :         {
    1454       16678 :             FOR( j = 0; j < PARAM_MC_MAX_BAND_LFE; j += band_step )
    1455             :             {
    1456        8339 :                 IF( EQ_16( param_frame_idx, hMetadataPMC->coding_band_mapping[j] ) )
    1457             :                 {
    1458             :                     /* LFE ICC is always the last ICC in coding band 0 */
    1459        4201 :                     num_lfe_bands = add( num_lfe_bands, 1 );
    1460        4201 :                     move16();
    1461             :                 }
    1462             :             }
    1463             :         }
    1464             : 
    1465        8750 :         IF( !hMetadataPMC->lfe_on )
    1466             :         {
    1467        7930 :             num_lfe_bands = 0;
    1468        7930 :             move16();
    1469             :         }
    1470             : 
    1471        8750 :         ivas_param_mc_bs_decode_parameter_values_fx( bit_buffer, &bit_pos, bits_to_copy, &st->BER_detect, hMetadataPMC, &hMetadataPMC->icc_coding,
    1472             :                                                      icc_map_size_wo_lfe, icc_map_size, num_lfe_bands, band_step, num_param_bands, hParamMC->icc_q_fx );
    1473             : 
    1474        8750 :         IF( !st->BER_detect )
    1475             :         {
    1476        8750 :             ivas_param_mc_bs_decode_parameter_values_fx( bit_buffer, &bit_pos, bits_to_copy, &st->BER_detect, hMetadataPMC, &hMetadataPMC->ild_coding,
    1477             :                                                          ild_map_size_wo_lfe, ild_map_size, num_lfe_bands, band_step, num_param_bands, hParamMC->icld_q_fx );
    1478             :         }
    1479             :         /* set LFE ILD and ICC to zero above PARAM_MC_MAX_BAND_LFE for attack frames */
    1480        8750 :         IF( hMetadataPMC->bAttackPresent )
    1481             :         {
    1482         520 :             FOR( k = PARAM_MC_MAX_BAND_LFE; k < imult1616( band_step, num_lfe_bands ); k++ )
    1483             :             {
    1484         109 :                 hParamMC->icc_q_fx[L_sub( L_mult0( add( k, 1 ), icc_map_size ), 1 )] = 32767; /* 1.0f in Q15 */
    1485         109 :                 move16();
    1486         109 :                 hParamMC->icld_q_fx[L_sub( L_mult0( add( k, 1 ), ild_map_size ), 1 )] = PARAM_MC_DEFAULT_MIN_ILD_FX; /* -92.0f in Q8 */
    1487         109 :                 move16();
    1488             :             }
    1489             :         }
    1490             : 
    1491        8750 :         *nb_bits = bit_pos;
    1492        8750 :         move16();
    1493             : 
    1494             :     } /* if ( !st->bfi ) */
    1495             : 
    1496        8780 :     IF( st->bfi )
    1497             :     {
    1498             :         /* for PLC, use the saved ILDs and ICCs from the past and set the transient flag and transient position to zero */
    1499          30 :         hMetadataPMC->bAttackPresent = 0;
    1500          30 :         move16();
    1501          30 :         hMetadataPMC->attackIndex = 0;
    1502          30 :         move16();
    1503             :     }
    1504             : 
    1505        8780 :     pop_wmops();
    1506             : 
    1507        8780 :     return;
    1508             : }
    1509             : 
    1510             : 
    1511             : /*-------------------------------------------------------------------------
    1512             :  * ivas_param_mc_dec_digest_tc()
    1513             :  *
    1514             :  *
    1515             :  *------------------------------------------------------------------------*/
    1516             : 
    1517        8760 : void ivas_param_mc_dec_digest_tc_fx(
    1518             :     Decoder_Struct *st_ivas,  /* i/o: IVAS decoder handle                                       */
    1519             :     const UWord8 nCldfbSlots, /* i  : number of CLFBS slots in the transport channels           */
    1520             :     Word32 *transport_channels_f_fx[],
    1521             :     Word16 transport_f_e )
    1522             : {
    1523             :     PARAM_MC_DEC_HANDLE hParamMC;
    1524             :     Word16 i, ch;
    1525             :     Word16 is_next_band, skip_next_band;
    1526             :     Word16 slot_idx, param_band_idx;
    1527             :     Word16 nchan_transport, nchan_out_transport, nchan_out_cldfb;
    1528             :     Word16 nchan_out_cov;
    1529             :     /*CLDFB*/
    1530             :     /* format converter */
    1531             :     Word16 channel_active[MAX_OUTPUT_CHANNELS];
    1532             :     IVAS_OUTPUT_SETUP *hSynthesisOutputSetup;
    1533             : 
    1534        8760 :     hParamMC = st_ivas->hParamMC;
    1535        8760 :     assert( hParamMC );
    1536             :     Word32 *pCx, *pCx_imag;
    1537             :     Word32 cx_fx[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS];                // Q(31 - cx_e)
    1538             :     Word32 cx_imag_fx[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS];           // Q(31 - cx_imag_e)
    1539             :     Word32 cx_next_band_fx[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS];      // Q(31 - cx_next_band_e)
    1540             :     Word32 cx_imag_next_band_fx[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS]; // Q(31 - cx_imag_next_band_e)
    1541             : 
    1542             :     Word16 cx_buff_e[2][PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS];
    1543             :     Word16 cx_e;
    1544             :     Word16 cx_imag_e, tmp_e;
    1545             :     Word16 cx_imag_next_band_e, cx_next_band_e;
    1546        8760 :     Word16 qout = 0;
    1547        8760 :     move16();
    1548             : 
    1549             :     Word32 real_part_fx, imag_part_fx, L_tmp1, L_tmp2;
    1550             : 
    1551             :     Word16 max_e;
    1552             : 
    1553        8760 :     push_wmops( "param_mc_dec_digest_tc" );
    1554             : 
    1555        8760 :     set16_fx( channel_active, 0, MAX_CICP_CHANNELS );
    1556        8760 :     nchan_transport = st_ivas->nchan_transport;
    1557        8760 :     move16();
    1558        8760 :     nchan_out_transport = add( st_ivas->hTransSetup.nchan_out_woLFE, st_ivas->hTransSetup.num_lfe );
    1559             : 
    1560        8760 :     test();
    1561        8760 :     test();
    1562        8760 :     IF( EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_32( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) )
    1563             :     {
    1564        6910 :         nchan_out_cldfb = BINAURAL_CHANNELS;
    1565        6910 :         move16();
    1566        6910 :         set16_fx( channel_active, 1, nchan_out_cldfb );
    1567        6910 :         nchan_out_cov = add( st_ivas->hTransSetup.nchan_out_woLFE, st_ivas->hTransSetup.num_lfe );
    1568        6910 :         hSynthesisOutputSetup = &st_ivas->hTransSetup;
    1569             :     }
    1570        1850 :     ELSE IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_CLDFB ) )
    1571             :     {
    1572         340 :         nchan_out_cov = nchan_out_transport;
    1573         340 :         move16();
    1574         340 :         nchan_out_cldfb = add( st_ivas->hOutSetup.nchan_out_woLFE, st_ivas->hOutSetup.num_lfe );
    1575         340 :         hSynthesisOutputSetup = &st_ivas->hTransSetup;
    1576             :     }
    1577        1510 :     ELSE IF( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
    1578             :     {
    1579         150 :         nchan_out_cov = add( st_ivas->hOutSetup.nchan_out_woLFE, st_ivas->hOutSetup.num_lfe );
    1580         150 :         nchan_out_cldfb = nchan_out_cov;
    1581         150 :         move16();
    1582         150 :         set16_fx( channel_active, 1, nchan_out_cov );
    1583         150 :         hSynthesisOutputSetup = &st_ivas->hOutSetup;
    1584             :     }
    1585             :     ELSE
    1586             :     {
    1587        1360 :         nchan_out_cov = nchan_out_transport;
    1588        1360 :         move16();
    1589        1360 :         nchan_out_cldfb = nchan_out_transport;
    1590        1360 :         move16();
    1591        1360 :         set16_fx( channel_active, 1, nchan_out_cov );
    1592        1360 :         hSynthesisOutputSetup = &st_ivas->hTransSetup;
    1593             :     }
    1594             : 
    1595             :     /* adapt transient position */
    1596        8760 :     IF( hParamMC->hMetadataPMC->bAttackPresent )
    1597             :     {
    1598         406 :         hParamMC->hMetadataPMC->attackIndex = s_max( 0, add( hParamMC->hMetadataPMC->attackIndex, shr( sub( nCldfbSlots, DEFAULT_JBM_CLDFB_TIMESLOTS ), 1 ) ) );
    1599         406 :         move16();
    1600             :     }
    1601             :     /* adapt subframes */
    1602        8760 :     hParamMC->num_slots = nCldfbSlots;
    1603        8760 :     move16();
    1604        8760 :     hParamMC->slots_rendered = 0;
    1605        8760 :     move16();
    1606        8760 :     hParamMC->subframes_rendered = 0;
    1607        8760 :     move16();
    1608        8760 :     ivas_jbm_dec_get_adapted_subframes( nCldfbSlots, hParamMC->subframe_nbslots, &hParamMC->nb_subframes );
    1609        8760 :     st_ivas->hTcBuffer->nb_subframes = hParamMC->nb_subframes;
    1610        8760 :     move16();
    1611        8760 :     Copy( hParamMC->subframe_nbslots, st_ivas->hTcBuffer->subframe_nbslots, hParamMC->nb_subframes );
    1612             : 
    1613        8760 :     ivas_param_mc_dec_compute_interpolator_fx( hParamMC->hMetadataPMC->bAttackPresent, hParamMC->hMetadataPMC->attackIndex, nCldfbSlots, hParamMC->h_output_synthesis_params.interpolator_fx );
    1614             : 
    1615             :     /* loop over two bands at a time */
    1616       66070 :     FOR( param_band_idx = 0; param_band_idx < hParamMC->num_param_bands_synth; param_band_idx += 2 )
    1617             :     {
    1618             :         /* don't process next band if it exceeds the limit */
    1619       57310 :         skip_next_band = ( ( param_band_idx + 1 ) == hParamMC->num_param_bands_synth ) ? 1 : 0;
    1620             : 
    1621       57310 :         set_zero_fx( cx_fx, PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS );
    1622       57310 :         set_zero_fx( cx_imag_fx, PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS );
    1623       57310 :         set_zero_fx( cx_next_band_fx, PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS );
    1624       57310 :         set_zero_fx( cx_imag_next_band_fx, PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS );
    1625             : 
    1626       57310 :         cx_e = 0;
    1627       57310 :         move16();
    1628       57310 :         cx_imag_e = 0;
    1629       57310 :         move16();
    1630       57310 :         cx_next_band_e = 0;
    1631       57310 :         move16();
    1632       57310 :         cx_imag_next_band_e = 0;
    1633       57310 :         move16();
    1634             :         /* slot loop for gathering the input data */
    1635      974270 :         FOR( slot_idx = 0; slot_idx < nCldfbSlots; slot_idx++ )
    1636             :         {
    1637      916960 :             IF( st_ivas->hDecoderConfig->Opt_tsm )
    1638             :             {
    1639           0 :                 IF( param_band_idx == 0 ) /* only run cldfbAna once */
    1640             :                 {
    1641             :                     Word32 RealBuffer_fx[CLDFB_NO_CHANNELS_MAX];
    1642             :                     Word32 ImagBuffer_fx[CLDFB_NO_CHANNELS_MAX];
    1643             : 
    1644             :                     /* CLDFB Analysis*/
    1645           0 :                     FOR( ch = 0; ch < nchan_transport; ch++ )
    1646             :                     {
    1647           0 :                         qout = transport_f_e;
    1648           0 :                         move16();
    1649           0 :                         cldfbAnalysis_ts_fx_fixed_q( &( transport_channels_f_fx[ch][hParamMC->num_freq_bands * slot_idx] ), RealBuffer_fx, ImagBuffer_fx, hParamMC->num_freq_bands, st_ivas->cldfbAnaDec[ch], &qout );
    1650             : 
    1651           0 :                         Copy32( RealBuffer_fx, &hParamMC->Cldfb_RealBuffer_tc_fx[slot_idx * hParamMC->num_freq_bands * nchan_transport + ch * hParamMC->num_freq_bands], hParamMC->num_freq_bands );
    1652           0 :                         Copy32( ImagBuffer_fx, &hParamMC->Cldfb_ImagBuffer_tc_fx[slot_idx * hParamMC->num_freq_bands * nchan_transport + ch * hParamMC->num_freq_bands], hParamMC->num_freq_bands );
    1653             :                     }
    1654             : 
    1655           0 :                     hParamMC->Cldfb_ImagBuffer_tc_e = qout;
    1656           0 :                     move16();
    1657             :                 }
    1658             :             }
    1659      916960 :             IF( GE_16( slot_idx, shl( hParamMC->hMetadataPMC->attackIndex, 1 ) ) )
    1660             :             {
    1661     2699700 :                 FOR( is_next_band = 0; is_next_band < 2; is_next_band++ )
    1662             :                 {
    1663     1799800 :                     test();
    1664     1799800 :                     IF( is_next_band && skip_next_band )
    1665             :                     {
    1666       23350 :                         CONTINUE;
    1667             :                     }
    1668     1776450 :                     IF( is_next_band )
    1669             :                     {
    1670     1753100 :                         ivas_dirac_dec_output_synthesis_cov_param_mc_collect_slot_fx( &hParamMC->Cldfb_RealBuffer_tc_fx[slot_idx * hParamMC->num_freq_bands * nchan_transport],
    1671             :                                                                                       /*hParamMC->Cldfb_RealBuffer_tc_e*/ Q31 - Q6,
    1672      876550 :                                                                                       &hParamMC->Cldfb_ImagBuffer_tc_fx[slot_idx * hParamMC->num_freq_bands * nchan_transport],
    1673             :                                                                                       /*hParamMC->Cldfb_ImagBuffer_tc_e*/ Q31 - Q6,
    1674             :                                                                                       cx_next_band_fx,
    1675             :                                                                                       &cx_next_band_e,
    1676             :                                                                                       cx_imag_next_band_fx,
    1677             :                                                                                       &cx_imag_next_band_e,
    1678             :                                                                                       hParamMC,
    1679      876550 :                                                                                       add( param_band_idx, is_next_band ),
    1680             :                                                                                       nchan_transport );
    1681             :                     }
    1682             :                     ELSE
    1683             :                     {
    1684     1799800 :                         ivas_dirac_dec_output_synthesis_cov_param_mc_collect_slot_fx( &hParamMC->Cldfb_RealBuffer_tc_fx[slot_idx * hParamMC->num_freq_bands * nchan_transport],
    1685             :                                                                                       /*hParamMC->Cldfb_RealBuffer_tc_e*/ Q31 - Q6,
    1686      899900 :                                                                                       &hParamMC->Cldfb_ImagBuffer_tc_fx[slot_idx * hParamMC->num_freq_bands * nchan_transport],
    1687             :                                                                                       /*hParamMC->Cldfb_ImagBuffer_tc_e*/ Q31 - Q6,
    1688             :                                                                                       cx_fx,
    1689             :                                                                                       &cx_e,
    1690             :                                                                                       cx_imag_fx,
    1691             :                                                                                       &cx_imag_e,
    1692             :                                                                                       hParamMC,
    1693      899900 :                                                                                       add( param_band_idx, is_next_band ),
    1694             :                                                                                       nchan_transport );
    1695             :                     }
    1696             :                 }
    1697             :             }
    1698             :         }
    1699             : 
    1700             :         Word16 tmp_cx_e, tmp_cx_imag_e;
    1701             :         /* map from complex input covariance to real values */
    1702      171930 :         FOR( is_next_band = 0; is_next_band < 2; is_next_band++ )
    1703             :         {
    1704      114620 :             test();
    1705      114620 :             IF( is_next_band && skip_next_band )
    1706             :             {
    1707        1500 :                 CONTINUE;
    1708             :             }
    1709             :             /* Cx for transport channels */
    1710      113120 :             IF( is_next_band )
    1711             :             {
    1712       55810 :                 pCx = &cx_next_band_fx[0];
    1713       55810 :                 pCx_imag = &cx_imag_next_band_fx[0];
    1714       55810 :                 tmp_cx_e = cx_next_band_e;
    1715       55810 :                 tmp_cx_imag_e = cx_imag_next_band_e;
    1716             :             }
    1717             :             ELSE
    1718             :             {
    1719       57310 :                 pCx = &cx_fx[0];
    1720       57310 :                 pCx_imag = &cx_imag_fx[0];
    1721       57310 :                 tmp_cx_e = cx_e;
    1722       57310 :                 tmp_cx_imag_e = cx_imag_e;
    1723             :             }
    1724             : 
    1725      568400 :             FOR( i = 0; i < nchan_transport * nchan_transport; i++ )
    1726             :             {
    1727      455280 :                 real_part_fx = pCx[i]; // Q(31 - cx_buff_e)
    1728      455280 :                 imag_part_fx = pCx_imag[i];
    1729      455280 :                 move32();
    1730      455280 :                 move32();
    1731      455280 :                 cx_buff_e[is_next_band][i] = tmp_cx_e;
    1732      455280 :                 move16();
    1733             :                 /* (a-ib)(c+id) = ac + bd + i(ad-bc) */
    1734      455280 :                 IF( LT_16( param_band_idx, hParamMC->max_param_band_abs_cov ) )
    1735             :                 {
    1736      267360 :                     L_tmp1 = Mpy_32_32( real_part_fx, real_part_fx );
    1737      267360 :                     L_tmp2 = Mpy_32_32( imag_part_fx, imag_part_fx );
    1738      267360 :                     L_tmp1 = BASOP_Util_Add_Mant32Exp( L_tmp1, add( tmp_cx_e, tmp_cx_e ), L_tmp2, add( tmp_cx_imag_e, tmp_cx_imag_e ), &tmp_e );
    1739      267360 :                     pCx[i] = Sqrt32( L_tmp1, &tmp_e );
    1740      267360 :                     move32();
    1741      267360 :                     cx_buff_e[is_next_band][i] = tmp_e;
    1742      267360 :                     move16();
    1743             :                 }
    1744             :                 ELSE
    1745             :                 {
    1746      187920 :                     pCx[i] = real_part_fx;
    1747      187920 :                     move32();
    1748      187920 :                     cx_buff_e[is_next_band][i] = tmp_cx_e;
    1749      187920 :                     move16();
    1750             :                 }
    1751             :             }
    1752             :         }
    1753             : 
    1754       57310 :         max_e = cx_buff_e[0][0];
    1755       57310 :         move16();
    1756             : 
    1757             :         /* Cx for transport channels */
    1758      171930 :         FOR( is_next_band = 0; is_next_band < 2; is_next_band++ )
    1759             :         {
    1760      575900 :             FOR( i = 0; i < imult1616( nchan_transport, nchan_transport ); i++ )
    1761             :             {
    1762             : 
    1763      461280 :                 IF( LT_16( max_e, cx_buff_e[is_next_band][i] ) )
    1764             :                 {
    1765       40066 :                     max_e = cx_buff_e[is_next_band][i];
    1766             :                 }
    1767             :             }
    1768             :         }
    1769             :         /* Cx for transport channels */
    1770      171930 :         FOR( is_next_band = 0; is_next_band < 2; is_next_band++ )
    1771             :         {
    1772      575900 :             FOR( i = 0; i < imult1616( nchan_transport, nchan_transport ); i++ )
    1773             :             {
    1774      461280 :                 if ( is_next_band == 0 )
    1775             :                 {
    1776      230640 :                     cx_fx[i] = L_shr( cx_fx[i], sub( max_e, cx_buff_e[is_next_band][i] ) );
    1777             :                 }
    1778             :                 else
    1779             :                 {
    1780      230640 :                     cx_next_band_fx[i] = L_shr( cx_next_band_fx[i], sub( max_e, cx_buff_e[is_next_band][i] ) );
    1781             :                 }
    1782      461280 :                 move32();
    1783             :             }
    1784             :         }
    1785       57310 :         cx_e = max_e;
    1786       57310 :         move16();
    1787             : 
    1788             : 
    1789             :         /* we have to do it similar to the encoder in case of attacks (i.e. accumulate two bands) to ensure correct DMX of the target covariance*/
    1790             : 
    1791       57310 :         test();
    1792       57310 :         test();
    1793       57310 :         IF( hParamMC->hMetadataPMC->bAttackPresent && ( EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) ) )
    1794             :         {
    1795          98 :             v_add_fx( cx_fx, cx_next_band_fx, cx_fx, imult1616( nchan_transport, nchan_transport ) );
    1796          98 :             Copy32( cx_fx, cx_next_band_fx, imult1616( nchan_transport, nchan_transport ) );
    1797             :         }
    1798             : 
    1799      171930 :         FOR( is_next_band = 0; is_next_band < 2; is_next_band++ )
    1800             :         {
    1801      114620 :             test();
    1802      114620 :             IF( is_next_band && skip_next_band )
    1803             :             {
    1804        1500 :                 CONTINUE;
    1805             :             }
    1806             : 
    1807      113120 :             IF( NE_32( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
    1808             :             {
    1809      113120 :                 IF( is_next_band )
    1810             :                 {
    1811             : 
    1812       55810 :                     ivas_param_mc_get_mixing_matrices_fx( hParamMC, hSynthesisOutputSetup, cx_next_band_fx, cx_e, add( param_band_idx, is_next_band ), hParamMC->h_output_synthesis_cov_state.mixing_matrix_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_exp, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_exp, nchan_out_transport, hParamMC->synthesis_conf, nchan_transport, nchan_out_cov );
    1813             :                 }
    1814             :                 ELSE
    1815             :                 {
    1816             : 
    1817       57310 :                     ivas_param_mc_get_mixing_matrices_fx( hParamMC, hSynthesisOutputSetup, cx_fx, cx_e, add( param_band_idx, is_next_band ), hParamMC->h_output_synthesis_cov_state.mixing_matrix_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_exp, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_exp, nchan_out_transport, hParamMC->synthesis_conf, nchan_transport, nchan_out_cov );
    1818             :                 }
    1819             :             }
    1820             :         }
    1821             :     }
    1822        8760 :     pop_wmops();
    1823             : 
    1824        8760 :     return;
    1825             : }
    1826             : 
    1827             : 
    1828             : /*-------------------------------------------------------------------------
    1829             :  * ivas_param_mc_dec()
    1830             :  *
    1831             :  * Parametric MC decoding process
    1832             :  *------------------------------------------------------------------------*/
    1833             : 
    1834        8760 : void ivas_param_mc_dec_render_fx(
    1835             :     Decoder_Struct *st_ivas,        /* i/o: IVAS decoder handle                                     */
    1836             :     const UWord16 nSamplesAsked,    /* i  : number of CLDFB slots requested                         */
    1837             :     UWord16 *nSamplesRendered,      /* o  : number of CLDFB slots rendered                          */
    1838             :     UWord16 *nSamplesAvailableNext, /* o  : number of CLDFB slots still to render                   */
    1839             :     Word32 *output_f_fx[],          /* o  : rendered time signal                                    Q11*/
    1840             :     Word16 channel_active_fx[MAX_OUTPUT_CHANNELS] )
    1841             : {
    1842             :     PARAM_MC_DEC_HANDLE hParamMC;
    1843             :     Word16 i, ch;
    1844             :     Word16 subframe_idx;
    1845             :     Word16 slot_idx, slot_idx_start, slot_idx_start_cldfb_synth, first_sf, last_sf, slots_to_render;
    1846             :     Word16 nchan_transport, nchan_out_transport, nchan_out_cldfb;
    1847             :     Word16 nchan_out_cov;
    1848             : 
    1849             :     /*CLDFB*/
    1850             :     Word32 Cldfb_RealBuffer_fx[MAX_INTERN_CHANNELS][PARAM_MC_MAX_NSLOTS_IN_SUBFRAME][CLDFB_NO_CHANNELS_MAX];
    1851             :     Word32 Cldfb_ImagBuffer_fx[MAX_INTERN_CHANNELS][PARAM_MC_MAX_NSLOTS_IN_SUBFRAME][CLDFB_NO_CHANNELS_MAX];
    1852             :     Word32 Cldfb_RealBuffer_Binaural_fx[BINAURAL_CHANNELS][MAX_PARAM_SPATIAL_SUBFRAMES][CLDFB_NO_CHANNELS_MAX];
    1853             :     Word32 Cldfb_ImagBuffer_Binaural_fx[BINAURAL_CHANNELS][MAX_PARAM_SPATIAL_SUBFRAMES][CLDFB_NO_CHANNELS_MAX];
    1854             :     Word32 *p_output_f_fx[MAX_OUTPUT_CHANNELS];
    1855      148920 :     FOR( i = 0; i < MAX_OUTPUT_CHANNELS; i++ )
    1856             :     {
    1857      140160 :         p_output_f_fx[i] = output_f_fx[i]; // Q11
    1858             :     }
    1859             :     /*Decorrelator*/
    1860             :     Word32 onset_filter_fx[MAX_CICP_CHANNELS * CLDFB_NO_CHANNELS_MAX]; // Q31
    1861             : 
    1862             :     /* format converter */
    1863             :     Word16 channel_active[MAX_OUTPUT_CHANNELS];
    1864             :     UWord16 nband_synth;
    1865             :     UWord32 output_Fs;
    1866        8760 :     Word16 tmp_q = 0;
    1867        8760 :     move16();
    1868             : 
    1869        8760 :     hParamMC = st_ivas->hParamMC;
    1870        8760 :     assert( hParamMC );
    1871             : 
    1872        8760 :     push_wmops( "param_mc_dec_render" );
    1873             : 
    1874        8760 :     set16_fx( channel_active, 0, MAX_CICP_CHANNELS );
    1875        8760 :     nchan_transport = st_ivas->nchan_transport;
    1876        8760 :     move16();
    1877        8760 :     nchan_out_transport = add( st_ivas->hTransSetup.nchan_out_woLFE, st_ivas->hTransSetup.num_lfe );
    1878        8760 :     output_Fs = st_ivas->hDecoderConfig->output_Fs;
    1879        8760 :     move32();
    1880             : 
    1881        8760 :     test();
    1882        8760 :     test();
    1883        8760 :     IF( EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) )
    1884             :     {
    1885        6910 :         nchan_out_cldfb = BINAURAL_CHANNELS;
    1886        6910 :         set16_fx( channel_active, 1, nchan_out_cldfb );
    1887        6910 :         nchan_out_cov = add( st_ivas->hTransSetup.nchan_out_woLFE, st_ivas->hTransSetup.num_lfe );
    1888             :     }
    1889        1850 :     ELSE IF( EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_CLDFB ) )
    1890             :     {
    1891         340 :         nchan_out_cov = nchan_out_transport;
    1892         340 :         move16();
    1893         340 :         nchan_out_cldfb = add( st_ivas->hOutSetup.nchan_out_woLFE, st_ivas->hOutSetup.num_lfe );
    1894             :     }
    1895        1510 :     ELSE IF( EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_COV ) || EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_MONO_STEREO ) )
    1896             :     {
    1897         150 :         nchan_out_cov = add( st_ivas->hOutSetup.nchan_out_woLFE, st_ivas->hOutSetup.num_lfe );
    1898         150 :         nchan_out_cldfb = nchan_out_cov;
    1899         150 :         move16();
    1900         150 :         set16_fx( channel_active, 1, nchan_out_cov );
    1901             :     }
    1902             :     ELSE
    1903             :     {
    1904        1360 :         nchan_out_cov = nchan_out_transport;
    1905        1360 :         move16();
    1906        1360 :         nchan_out_cldfb = nchan_out_transport;
    1907        1360 :         move16();
    1908        1360 :         set16_fx( channel_active, 1, nchan_out_cov );
    1909             :     }
    1910             : 
    1911             :     /* set everything to zero that will not be decoded */
    1912        8760 :     nband_synth = hParamMC->band_grouping[hParamMC->num_param_bands_synth];
    1913        8760 :     move16();
    1914      148920 :     FOR( ch = 0; ch < MAX_OUTPUT_CHANNELS; ch++ )
    1915             :     {
    1916      700800 :         FOR( slot_idx = 0; slot_idx < JBM_CLDFB_SLOTS_IN_SUBFRAME; slot_idx++ )
    1917             :         {
    1918      560640 :             set32_fx( &( Cldfb_RealBuffer_fx[ch][slot_idx][0] ), 0, CLDFB_NO_CHANNELS_MAX );
    1919      560640 :             set32_fx( &( Cldfb_ImagBuffer_fx[ch][slot_idx][0] ), 0, CLDFB_NO_CHANNELS_MAX );
    1920             :         }
    1921             :     }
    1922             : 
    1923             :     /* loop FOR synthesis, assume we always have to render in multiples of 5ms subframes with spills */
    1924             :     /*slots_to_render = min(sub(hParamMC->num_slots, hParamMC->slots_rendered), nSamplesAsked / NS2SA(output_Fs, CLDFB_SLOT_NS));
    1925             :      *nSamplesRendered = slots_to_render * NS2SA(output_Fs, CLDFB_SLOT_NS);*/
    1926             :     Word16 temp_e;
    1927        8760 :     Word16 temp = BASOP_Util_Divide1616_Scale( nSamplesAsked, NS2SA_FX2( output_Fs, CLDFB_SLOT_NS ), &temp_e );
    1928        8760 :     temp = shr( temp, sub( 15, temp_e ) );
    1929        8760 :     slots_to_render = s_min( sub( hParamMC->num_slots, hParamMC->slots_rendered ), temp );
    1930        8760 :     *nSamplesRendered = imult1616( slots_to_render, NS2SA_FX2( output_Fs, CLDFB_SLOT_NS ) );
    1931        8760 :     move16();
    1932             :     Word16 j, k;
    1933        8760 :     first_sf = hParamMC->subframes_rendered;
    1934        8760 :     move16();
    1935        8760 :     last_sf = first_sf;
    1936        8760 :     move16();
    1937       43800 :     WHILE( slots_to_render > 0 )
    1938             :     {
    1939       35040 :         slots_to_render = sub( slots_to_render, hParamMC->subframe_nbslots[last_sf] );
    1940       35040 :         last_sf = add( last_sf, 1 );
    1941             :     }
    1942        8760 :     IF( EQ_16( st_ivas->renderer_type, RENDERER_SBA_LINEAR_ENC ) )
    1943             :     {
    1944        1800 :         FOR( subframe_idx = first_sf; subframe_idx < last_sf; subframe_idx++ )
    1945             :         {
    1946        1440 :             slots_to_render = add( slots_to_render, hParamMC->subframe_nbslots[subframe_idx] );
    1947             :         }
    1948             :     }
    1949        8760 :     slot_idx_start = hParamMC->slots_rendered;
    1950        8760 :     move16();
    1951        8760 :     slot_idx_start_cldfb_synth = 0;
    1952        8760 :     move16();
    1953             : 
    1954      123780 :     FOR( j = 0; j < st_ivas->hParamMC->hMetadataPMC->nbands_coded; j++ )
    1955             :     {
    1956      115020 :         Flag is_zero = is_zero_arr( hParamMC->h_output_synthesis_cov_state.mixing_matrix_fx[j], hParamMC->h_output_synthesis_cov_state.mixing_matrix_len );
    1957             :         {
    1958      115020 :             if ( is_zero != 0 )
    1959             :             {
    1960        1940 :                 hParamMC->h_output_synthesis_cov_state.mixing_matrix_exp[j] = 0;
    1961        1940 :                 move16();
    1962             :             }
    1963             :         }
    1964      115020 :         IF( LT_16( st_ivas->hParamMC->band_grouping[j], st_ivas->hParamMC->h_output_synthesis_params.max_band_decorr ) )
    1965             :         {
    1966       90900 :             is_zero = is_zero_arr( hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_fx[j], hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_len );
    1967       90900 :             if ( is_zero != 0 )
    1968             :             {
    1969          50 :                 hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_exp[j] = 0;
    1970          50 :                 move16();
    1971             :             }
    1972             :         }
    1973             :     }
    1974       43800 :     FOR( subframe_idx = first_sf; subframe_idx < last_sf; subframe_idx++ )
    1975             :     {
    1976      175200 :         FOR( slot_idx = 0; slot_idx < hParamMC->subframe_nbslots[subframe_idx]; ( slot_idx++, hParamMC->slots_rendered++ ) )
    1977             :         {
    1978      140160 :             IF( hParamMC->max_band_decorr > 0 )
    1979             :             {
    1980             :                 /*-----------------------------------------------------------------*
    1981             :                  * protoype signal computation
    1982             :                  *-----------------------------------------------------------------*/
    1983      140160 :                 param_mc_protoSignalComputation_fx( &hParamMC->Cldfb_RealBuffer_tc_fx[hParamMC->slots_rendered * nchan_transport * hParamMC->num_freq_bands],
    1984      140160 :                                                     &hParamMC->Cldfb_ImagBuffer_tc_fx[hParamMC->slots_rendered * nchan_transport * hParamMC->num_freq_bands],
    1985      140160 :                                                     hParamMC->proto_frame_f_fx, hParamMC->diff_proto_info,
    1986      140160 :                                                     hParamMC->num_freq_bands, hParamMC->Cldfb_RealBuffer_tc_e, &hParamMC->proto_frame_f_fx_q );
    1987             :                 /*-----------------------------------------------------------------*
    1988             :                  * frequency domain decorrelation
    1989             :                  *-----------------------------------------------------------------*/
    1990             :                 /* decorrelate prototype frame */
    1991             : 
    1992      140160 :                 ivas_dirac_dec_decorr_process_fx( hParamMC->num_freq_bands,
    1993      140160 :                                                   hParamMC->num_outputs_diff,
    1994      140160 :                                                   hParamMC->diff_proto_info->num_protos_diff,
    1995             :                                                   DIRAC_SYNTHESIS_COV_MC_LS,
    1996             :                                                   nchan_transport,
    1997      140160 :                                                   hParamMC->proto_frame_f_fx,
    1998      140160 :                                                   hParamMC->proto_frame_f_fx_q,
    1999      140160 :                                                   hParamMC->diff_proto_info->num_protos_diff,
    2000      140160 :                                                   hParamMC->diff_proto_info->proto_index_diff,
    2001             :                                                   hParamMC->proto_frame_dec_f_fx, // output
    2002             :                                                   &tmp_q,
    2003             :                                                   onset_filter_fx,
    2004             :                                                   hParamMC->h_freq_domain_decorr_ap_params,
    2005             :                                                   hParamMC->h_freq_domain_decorr_ap_state );
    2006             : 
    2007             :                 /* copy decorrelated frame directly to output CLDFB buffer, acts also as intermediate */
    2008             :                 /* memory FOR the decorrelated signal                                                 */
    2009      140160 :                 ivas_param_mc_dec_copy_diffuse_proto( hParamMC, Cldfb_RealBuffer_fx, Cldfb_ImagBuffer_fx, nchan_out_cov, slot_idx ); // Returns Cldfb buffers in Q11(tmp_q)
    2010             : 
    2011      991680 :                 FOR( k = 0; k < nchan_out_cov; k++ )
    2012             :                 {
    2013    17881920 :                     FOR( Word16 l = 0; l < hParamMC->h_output_synthesis_params.max_band_decorr; l++ )
    2014             :                     {
    2015    17030400 :                         Cldfb_RealBuffer_fx[k][slot_idx][l] = L_shl( Cldfb_RealBuffer_fx[k][slot_idx][l], sub( 6, tmp_q ) ); // Q11(tmp_q) -> Q6
    2016    17030400 :                         move32();
    2017    17030400 :                         Cldfb_ImagBuffer_fx[k][slot_idx][l] = L_shl( Cldfb_ImagBuffer_fx[k][slot_idx][l], sub( 6, tmp_q ) ); // Q11(tmp_q) -> Q6
    2018    17030400 :                         move32();
    2019             :                     }
    2020             :                 }
    2021             :             }
    2022             : 
    2023             :             /*-----------------------------------------------------------------*
    2024             :              * output synthesis
    2025             :              *-----------------------------------------------------------------*/
    2026      280320 :             ivas_dirac_dec_output_synthesis_cov_param_mc_synthesise_slot_fx(
    2027      140160 :                 &hParamMC->Cldfb_RealBuffer_tc_fx[hParamMC->slots_rendered * nchan_transport * hParamMC->num_freq_bands],
    2028      140160 :                 &hParamMC->Cldfb_ImagBuffer_tc_fx[hParamMC->slots_rendered * nchan_transport * hParamMC->num_freq_bands], Cldfb_RealBuffer_fx, Cldfb_ImagBuffer_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_exp, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_exp, slot_idx, add( slot_idx, slot_idx_start ),
    2029             :                 nchan_transport, nchan_out_cov, hParamMC );
    2030             : 
    2031      140160 :             test();
    2032      140160 :             IF( ( EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) ) )
    2033             :             {
    2034      110560 :                 test();
    2035      110560 :                 IF( st_ivas->hCombinedOrientationData && EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) )
    2036       50880 :                 {
    2037             :                     Word16 Q_Cldfb_ImagBuffer, Q_Cldfb_RealBuffer;
    2038       50880 :                     Q_Cldfb_ImagBuffer = Q6 - 5; /*max value =MAX_INTERN_CHANNELS(=16)*Cldfb_ImagBuffer_fx*/
    2039       50880 :                     move16();
    2040       50880 :                     Q_Cldfb_RealBuffer = Q6 - 5;
    2041       50880 :                     move16();
    2042      864960 :                     FOR( i = 0; i < MAX_OUTPUT_CHANNELS; i++ )
    2043             :                     {
    2044     4070400 :                         FOR( j = 0; j < MAX_PARAM_SPATIAL_SUBFRAMES; j++ )
    2045             :                         {
    2046     3256320 :                             Scale_sig32( Cldfb_RealBuffer_fx[i][j], CLDFB_NO_CHANNELS_MAX, sub( Q_Cldfb_ImagBuffer, Q6 ) ); // Q1
    2047     3256320 :                             Scale_sig32( Cldfb_ImagBuffer_fx[i][j], CLDFB_NO_CHANNELS_MAX, sub( Q_Cldfb_RealBuffer, Q6 ) ); // Q1
    2048             :                         }
    2049             :                     }
    2050       50880 :                     ivas_param_mc_mc2sba_cldfb_fx( st_ivas->hTransSetup, hParamMC->hoa_encoder_fx, slot_idx, Cldfb_RealBuffer_fx, Cldfb_ImagBuffer_fx, nband_synth, GAIN_LFE_FX );
    2051      864960 :                     FOR( i = 0; i < MAX_OUTPUT_CHANNELS; i++ )
    2052             :                     {
    2053     4070400 :                         FOR( j = 0; j < MAX_PARAM_SPATIAL_SUBFRAMES; j++ )
    2054             :                         {
    2055     3256320 :                             Scale_sig32( Cldfb_RealBuffer_fx[i][j], CLDFB_NO_CHANNELS_MAX, sub( Q6, Q_Cldfb_ImagBuffer ) ); // Q6
    2056     3256320 :                             Scale_sig32( Cldfb_ImagBuffer_fx[i][j], CLDFB_NO_CHANNELS_MAX, sub( Q6, Q_Cldfb_RealBuffer ) ); // Q6
    2057             :                         }
    2058             :                     }
    2059             :                 }
    2060             :                 ELSE
    2061             :                 {
    2062             :                     /* remove LFE */
    2063             :                     UWord16 idx_out;
    2064             :                     UWord16 idx_lfe;
    2065             :                     IVAS_OUTPUT_SETUP hLsSetup;
    2066             : 
    2067       59680 :                     hLsSetup = st_ivas->hTransSetup;
    2068             :                     /* If LFE should be rendered, add it to other channels before removing */
    2069       59680 :                     IF( st_ivas->hBinRenderer->render_lfe )
    2070             :                     {
    2071       59680 :                         Word16 tmp_exp = 0;
    2072       59680 :                         move16();
    2073       59680 :                         Word16 tmp = BASOP_Util_Divide1616_Scale( GAIN_LFE_FX, hLsSetup.nchan_out_woLFE, &tmp_exp );
    2074       59680 :                         tmp_exp = add( tmp_exp, ( 1 - 15 ) );
    2075      119360 :                         FOR( idx_lfe = 0; idx_lfe < hLsSetup.num_lfe; idx_lfe++ )
    2076             :                         {
    2077             :                             /* Copy just the first band of LFE*/
    2078       59680 :                             v_multc_fixed_16( Cldfb_RealBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], tmp, Cldfb_RealBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], 1 );
    2079       59680 :                             v_multc_fixed_16( Cldfb_ImagBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], tmp, Cldfb_ImagBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], 1 );
    2080             : 
    2081       59680 :                             Scale_sig32( Cldfb_RealBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], 1, tmp_exp );
    2082       59680 :                             Scale_sig32( Cldfb_ImagBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], 1, tmp_exp );
    2083      420640 :                             FOR( ch = 0; ch < ( hLsSetup.nchan_out_woLFE + hLsSetup.num_lfe ); ch++ )
    2084             :                             {
    2085      360960 :                                 IF( hLsSetup.index_lfe[idx_lfe] != ch )
    2086             :                                 {
    2087      301280 :                                     v_add_fixed_no_hdrm( Cldfb_RealBuffer_fx[ch][slot_idx], Cldfb_RealBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], Cldfb_RealBuffer_fx[ch][slot_idx], 1 );
    2088      301280 :                                     v_add_fixed_no_hdrm( Cldfb_ImagBuffer_fx[ch][slot_idx], Cldfb_ImagBuffer_fx[hLsSetup.index_lfe[idx_lfe]][slot_idx], Cldfb_ImagBuffer_fx[ch][slot_idx], 1 );
    2089             :                                 }
    2090             :                             }
    2091             :                         }
    2092             :                     }
    2093             : 
    2094       59680 :                     idx_out = 0;
    2095       59680 :                     move16();
    2096       59680 :                     idx_lfe = 0;
    2097       59680 :                     move16();
    2098             : 
    2099      420640 :                     FOR( ch = 0; ch < ( hLsSetup.nchan_out_woLFE + hLsSetup.num_lfe ); ch++ )
    2100             :                     {
    2101      360960 :                         test();
    2102      360960 :                         IF( ( hLsSetup.num_lfe > 0 ) && EQ_16( hLsSetup.index_lfe[idx_lfe], ch ) )
    2103             :                         {
    2104       59680 :                             IF( LT_16( idx_lfe, ( sub( hLsSetup.num_lfe, 1 ) ) ) )
    2105             :                             {
    2106           0 :                                 idx_lfe = add( idx_lfe, 1 );
    2107             :                             }
    2108             :                         }
    2109      301280 :                         ELSE IF( NE_16( ch, idx_out ) )
    2110             :                         {
    2111      122240 :                             Copy32( Cldfb_RealBuffer_fx[ch][slot_idx], Cldfb_RealBuffer_fx[idx_out][slot_idx], nband_synth );
    2112      122240 :                             Copy32( Cldfb_ImagBuffer_fx[ch][slot_idx], Cldfb_ImagBuffer_fx[idx_out][slot_idx], nband_synth );
    2113      122240 :                             idx_out = add( idx_out, 1 );
    2114             :                         }
    2115             :                         ELSE
    2116             :                         {
    2117      179040 :                             idx_out = add( idx_out, 1 );
    2118             :                         }
    2119             :                     }
    2120             :                 }
    2121             :             }
    2122             :         }
    2123             : 
    2124       35040 :         test();
    2125       35040 :         IF( EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) )
    2126       27640 :         {
    2127       27640 :             Word16 input_q = 6;
    2128       27640 :             move16();
    2129             :             /* Implement binaural rendering */
    2130       27640 :             ivas_binRenderer_fx( st_ivas->hBinRenderer,
    2131             :                                  st_ivas->hCombinedOrientationData,
    2132       27640 :                                  hParamMC->subframe_nbslots[subframe_idx],
    2133             :                                  Cldfb_RealBuffer_Binaural_fx, Cldfb_ImagBuffer_Binaural_fx,
    2134             :                                  Cldfb_RealBuffer_fx,
    2135             :                                  Cldfb_ImagBuffer_fx, &input_q );
    2136             : 
    2137      469880 :             FOR( i = 0; i < MAX_OUTPUT_CHANNELS; i++ )
    2138             :             {
    2139     2211200 :                 FOR( j = 0; j < MAX_PARAM_SPATIAL_SUBFRAMES; j++ )
    2140             :                 {
    2141   107906560 :                     FOR( k = 0; k < CLDFB_NO_CHANNELS_MAX; k++ )
    2142             :                     {
    2143   106137600 :                         Cldfb_RealBuffer_fx[i][j][k] = L_shl( Cldfb_RealBuffer_fx[i][j][k], sub( Q6, input_q ) ); // Q6
    2144   106137600 :                         Cldfb_ImagBuffer_fx[i][j][k] = L_shl( Cldfb_ImagBuffer_fx[i][j][k], sub( Q6, input_q ) ); // Q6
    2145             :                     }
    2146             :                 }
    2147             :             }
    2148             : 
    2149             :             /* update combined orientation access index */
    2150       27640 :             ivas_combined_orientation_update_index( st_ivas->hCombinedOrientationData, hParamMC->num_freq_bands * hParamMC->subframe_nbslots[subframe_idx] );
    2151             :         }
    2152        7400 :         ELSE IF( EQ_16( hParamMC->synthesis_conf, PARAM_MC_SYNTH_LS_CONV_CLDFB ) )
    2153             :         {
    2154             :             /* format conversion*/
    2155        1360 :             ivas_lssetupconversion_process_param_mc_fx( st_ivas, hParamMC->subframe_nbslots[subframe_idx], Cldfb_RealBuffer_fx, Cldfb_ImagBuffer_fx, channel_active );
    2156             :         }
    2157             : 
    2158             : 
    2159             :         /* CLDFB synthesis */
    2160      143360 :         FOR( ch = 0; ch < nchan_out_cldfb; ch++ )
    2161             :         {
    2162             :             Word32 *RealBuffer_fx[16];
    2163             :             Word32 *ImagBuffer_fx[16];
    2164             : 
    2165      108320 :             IF( channel_active[ch] )
    2166             :             {
    2167             :                 /* open CLDFB buffer up to CLDFB_NO_CHANNELS_MAX bands FOR 48kHz */
    2168      500800 :                 FOR( i = 0; i < hParamMC->subframe_nbslots[subframe_idx]; i++ )
    2169             :                 {
    2170      400640 :                     IF( EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV ) || EQ_16( st_ivas->renderer_type, RENDERER_BINAURAL_FASTCONV_ROOM ) )
    2171             :                     {
    2172      221120 :                         RealBuffer_fx[i] = Cldfb_RealBuffer_Binaural_fx[ch][i]; // Q6
    2173      221120 :                         ImagBuffer_fx[i] = Cldfb_ImagBuffer_Binaural_fx[ch][i]; // Q6
    2174             :                     }
    2175             :                     ELSE
    2176             :                     {
    2177      179520 :                         RealBuffer_fx[i] = Cldfb_RealBuffer_fx[ch][i]; // Q6
    2178      179520 :                         ImagBuffer_fx[i] = Cldfb_ImagBuffer_fx[ch][i]; // Q6
    2179             :                     }
    2180             :                 }
    2181             : 
    2182      100160 :                 Word16 len = add( imult1616( slot_idx_start_cldfb_synth, hParamMC->num_freq_bands ), imult1616( hParamMC->num_freq_bands, hParamMC->subframe_nbslots[subframe_idx] ) );
    2183      100160 :                 scale_sig32( output_f_fx[ch], len, 5 - 11 );
    2184      100160 :                 cldfbSynthesis_ivas_fx( RealBuffer_fx, ImagBuffer_fx, &( output_f_fx[ch][slot_idx_start_cldfb_synth * hParamMC->num_freq_bands] ),
    2185      100160 :                                         imult1616( hParamMC->num_freq_bands, hParamMC->subframe_nbslots[subframe_idx] ), 0, 0, st_ivas->cldfbSynDec[ch] );
    2186             : 
    2187      100160 :                 scale_sig32( output_f_fx[ch], len, 11 - 5 ); // Q11
    2188             :             }
    2189             :             ELSE
    2190             :             {
    2191        8160 :                 set32_fx( &( output_f_fx[ch][slot_idx_start_cldfb_synth * hParamMC->num_freq_bands] ), 0, imult1616( hParamMC->num_freq_bands, hParamMC->subframe_nbslots[subframe_idx] ) );
    2192             :             }
    2193             :         }
    2194       35040 :         slot_idx_start = add( slot_idx_start, hParamMC->subframe_nbslots[subframe_idx] );
    2195       35040 :         slot_idx_start_cldfb_synth = add( slot_idx_start_cldfb_synth, hParamMC->subframe_nbslots[subframe_idx] );
    2196             :     }
    2197        8760 :     IF( EQ_16( st_ivas->renderer_type, RENDERER_SBA_LINEAR_ENC ) )
    2198             :     {
    2199         360 :         ivas_mc2sba_fx( st_ivas->hIntSetup, p_output_f_fx, p_output_f_fx, *nSamplesRendered, st_ivas->hOutSetup.ambisonics_order, 0 );
    2200             :     }
    2201             : 
    2202             :     /* update */
    2203             : 
    2204        8760 :     IF( EQ_16( hParamMC->slots_rendered, hParamMC->num_slots ) )
    2205             :     {
    2206        8760 :         hParamMC->hMetadataPMC->last_coded_bwidth = hParamMC->hMetadataPMC->coded_bwidth;
    2207        8760 :         move16();
    2208        8760 :         param_mc_update_mixing_matrices_fx( hParamMC, hParamMC->h_output_synthesis_cov_state.mixing_matrix_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_exp, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_fx, hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_exp, nchan_transport, nchan_out_cov );
    2209             :     }
    2210             : 
    2211             : 
    2212        8760 :     hParamMC->subframes_rendered = last_sf;
    2213        8760 :     move16();
    2214        8760 :     *nSamplesAvailableNext = imult1616( sub( hParamMC->num_slots, hParamMC->slots_rendered ), NS2SA_FX2( output_Fs, CLDFB_SLOT_NS ) );
    2215        8760 :     move16();
    2216             : 
    2217      148920 :     FOR( i = 0; i < MAX_OUTPUT_CHANNELS; i++ )
    2218             :     {
    2219      140160 :         channel_active_fx[i] = channel_active[i];
    2220      140160 :         move16();
    2221             :     }
    2222        8760 :     pop_wmops();
    2223             : 
    2224        8760 :     return;
    2225             : }
    2226             : 
    2227             : /*-------------------------------------------------------------------------
    2228             :  * param_mc_dec_init()
    2229             :  *
    2230             :  * Parametric MC decoding initialization
    2231             :  *------------------------------------------------------------------------*/
    2232             : 
    2233         241 : static void ivas_param_mc_dec_init_fx(
    2234             :     PARAM_MC_DEC_HANDLE hParamMC, /* i/o: decoder DirAC handle                 */
    2235             :     const Word16 nchan_transport, /* i  : number of input (transport) channels */
    2236             :     const Word16 nchan_cov )      /* i  : number of cov synthesis channels     */
    2237             : {
    2238             :     Word16 k;
    2239             :     UWord16 max_param_band_residual;
    2240             :     Word16 len;
    2241             : 
    2242             :     /*-----------------------------------------------------------------*
    2243             :      * init sub-modules
    2244             :      *-----------------------------------------------------------------*/
    2245             : 
    2246             :     /* decorrelation */
    2247         241 :     IF( hParamMC->max_band_decorr > 0 )
    2248             :     {
    2249         239 :         len = imult1616( hParamMC->diff_proto_info->num_protos_diff, hParamMC->h_freq_domain_decorr_ap_params->h_onset_detection_power_params.max_band_decorr );
    2250             : 
    2251             :         /* init onsetDetectionPower */
    2252         239 :         set_zero_fx( hParamMC->h_freq_domain_decorr_ap_state->h_onset_detection_power_state.onset_detector_1_fx, len );
    2253         239 :         set_zero_fx( hParamMC->h_freq_domain_decorr_ap_state->h_onset_detection_power_state.onset_detector_2_fx, len );
    2254         239 :         hParamMC->h_freq_domain_decorr_ap_state->h_onset_detection_power_state.q_onset_detector = Q31;
    2255         239 :         move16();
    2256             :     }
    2257             : 
    2258         241 :     max_param_band_residual = 0;
    2259         241 :     move16();
    2260             : 
    2261             :     /* output synthesis */
    2262         851 :     FOR( k = hParamMC->hMetadataPMC->num_parameter_bands; k >= 0; k-- )
    2263             :     {
    2264         851 :         IF( LE_16( hParamMC->band_grouping[k], hParamMC->max_band_decorr ) )
    2265             :         {
    2266         241 :             max_param_band_residual = k;
    2267         241 :             move16();
    2268         241 :             BREAK;
    2269             :         }
    2270             :     }
    2271             : 
    2272         241 :     ivas_dirac_dec_output_synthesis_cov_init_fx( &( hParamMC->h_output_synthesis_cov_state ), nchan_transport, nchan_cov, hParamMC->hMetadataPMC->num_parameter_bands, max_param_band_residual );
    2273             : 
    2274             :     /*-----------------------------------------------------------------*
    2275             :      * init proto frames
    2276             :      *-----------------------------------------------------------------*/
    2277             : 
    2278         241 :     IF( hParamMC->max_band_decorr > 0 )
    2279             :     {
    2280         239 :         set_zero_fx( hParamMC->proto_frame_f_fx, shl( imult1616( hParamMC->diff_proto_info->num_protos_diff, hParamMC->num_freq_bands ), 1 ) );
    2281         239 :         set32_fx( hParamMC->proto_frame_dec_f_fx, 0, shl( imult1616( nchan_cov, hParamMC->num_freq_bands ), 1 ) );
    2282             :     }
    2283             : 
    2284         241 :     return;
    2285             : }
    2286             : 
    2287             : 
    2288             : /*-------------------------------------------------------------------------
    2289             :  * Local functions
    2290             :  *-------------------------------------------------------------------------*/
    2291             : 
    2292             : 
    2293             : /*-------------------------------------------------------------------------
    2294             :  * ivas_param_mc_dec_compute_diffuse_proto()
    2295             :  *
    2296             :  * Compute prototypes for decorrelation
    2297             :  *------------------------------------------------------------------------*/
    2298             : 
    2299      140160 : static void param_mc_protoSignalComputation_fx(
    2300             :     Word32 *RealBuffer_fx,                           /* i  : CLDFB samples of the transport channels (real part)      */
    2301             :     Word32 *ImagBuffer_fx,                           /* i  : CLDFB samples of the transport channels (imaginary part) */
    2302             :     Word32 *proto_frame_f_fx,                        /* o  : interleaved complex prototype CLDFB samples              */
    2303             :     const PARAM_MC_DIFF_PROTO_INFO *diff_proto_info, /* i  : prototype generation information                         */
    2304             :     const Word16 num_freq_bands,                     /* i  : number of frequency bands for the prototypes             */
    2305             :     const Word16 Cldfb_Real_Imag_exp,                /*i: Exponent of real and imag buffers */
    2306             :     Word16 *proto_frame_f_fx_q )
    2307             : {
    2308             :     Word16 band;
    2309             :     Word16 proto_ch_idx, source_ch_cnt;
    2310             : 
    2311             :     Word32 *p_proto_frame_fx;
    2312             :     Word32 *p_real_buffer_fx; // Q12
    2313             :     Word32 *p_imag_buffer_fx; // Q12
    2314             : 
    2315      140160 :     set32_fx( proto_frame_f_fx, 0, shl( imult1616( num_freq_bands, diff_proto_info->num_protos_diff ), 1 ) );
    2316             : 
    2317             : 
    2318      565440 :     FOR( proto_ch_idx = 0; proto_ch_idx < diff_proto_info->num_protos_diff; proto_ch_idx++ )
    2319             :     {
    2320      425280 :         Word16 num_source_ch = diff_proto_info->num_source_chan_diff[proto_ch_idx];
    2321      425280 :         move16();
    2322             : 
    2323      990080 :         FOR( source_ch_cnt = 0; source_ch_cnt < num_source_ch; source_ch_cnt++ )
    2324             :         {
    2325             : 
    2326      564800 :             Word32 fac_fx = diff_proto_info->proto_fac_fx[proto_ch_idx][source_ch_cnt];
    2327      564800 :             move32();
    2328             : 
    2329      564800 :             Word16 source_ch_idx = diff_proto_info->source_chan_idx[proto_ch_idx][source_ch_cnt];
    2330      564800 :             move16();
    2331             : 
    2332      564800 :             p_proto_frame_fx = &proto_frame_f_fx[shl( imult1616( proto_ch_idx, num_freq_bands ), 1 )];
    2333      564800 :             p_real_buffer_fx = &RealBuffer_fx[imult1616( source_ch_idx, num_freq_bands )];
    2334      564800 :             p_imag_buffer_fx = &ImagBuffer_fx[imult1616( source_ch_idx, num_freq_bands )];
    2335             : 
    2336    32225600 :             FOR( band = 0; band < num_freq_bands; band++ )
    2337             :             {
    2338             : 
    2339             : #ifdef FIX_1737_proto_fac_overflow
    2340    31660800 :                 Word32 tmp_x = L_shl( Mpy_32_32( fac_fx, ( *( p_real_buffer_fx++ ) ) ), 4 ); // Q(26 + 4 + 6 - 31)  :: Q5
    2341             : #else
    2342             :                 Word32 tmp_x = Mpy_32_32( fac_fx, ( *( p_real_buffer_fx++ ) ) );                                                                       // Q(30 + 6 - 31)  :: Q5
    2343             : #endif
    2344             : 
    2345    31660800 :                 *( p_proto_frame_fx ) = L_add( *( p_proto_frame_fx ), tmp_x );
    2346    31660800 :                 move32();
    2347    31660800 :                 p_proto_frame_fx++;
    2348             : 
    2349             : #ifdef FIX_1737_proto_fac_overflow
    2350    31660800 :                 tmp_x = L_shl( Mpy_32_32( fac_fx, ( *( p_imag_buffer_fx++ ) ) ), 4 ); // Q(26 + 4 + 6 - 31)  :: Q5
    2351             : #else
    2352             :                 tmp_x = Mpy_32_32( fac_fx, ( *( p_imag_buffer_fx++ ) ) );                                                                              // Q(30 + 6 - 31)  :: Q5
    2353             : #endif
    2354             : 
    2355    31660800 :                 *( p_proto_frame_fx ) = L_add( *( p_proto_frame_fx ), tmp_x );
    2356    31660800 :                 move32();
    2357    31660800 :                 p_proto_frame_fx++;
    2358             :             }
    2359      564800 :             *proto_frame_f_fx_q = sub( 30, Cldfb_Real_Imag_exp );
    2360      564800 :             move16();
    2361             :         }
    2362             :     }
    2363             : 
    2364      140160 :     return;
    2365             : }
    2366             : 
    2367             : /*-------------------------------------------------------------------------
    2368             :  * ivas_param_mc_dec_compute_diffuse_proto()
    2369             :  *
    2370             :  * Transfer decorrelated signals back from the decorrelator buffer to
    2371             :  * the buffers used in the final synthesis
    2372             :  *------------------------------------------------------------------------*/
    2373             : 
    2374      140160 : static void ivas_param_mc_dec_copy_diffuse_proto(
    2375             :     PARAM_MC_DEC_HANDLE hParamMC,                                                                           /* i  : Parametric MC handle                                      */
    2376             :     Word32 Cldfb_buffer_real_fx[MAX_CICP_CHANNELS][PARAM_MC_MAX_NSLOTS_IN_SUBFRAME][CLDFB_NO_CHANNELS_MAX], /* o  : CLDFB buffer used in the final synthesis (real part)      */
    2377             :     Word32 Cldfb_buffer_imag_fx[MAX_CICP_CHANNELS][PARAM_MC_MAX_NSLOTS_IN_SUBFRAME][CLDFB_NO_CHANNELS_MAX], /* o  : CLDFB buffer used in the final synthesis (imaginary part) */
    2378             :     const Word16 nY,                                                                                        /* i  : number of decorrelated channels                           */
    2379             :     const Word16 slot_idx                                                                                   /* i  : current time slot index                                   */
    2380             : )
    2381             : {
    2382             :     Word16 k, l;
    2383             :     Word16 num_freq_bands, num_freq_bands_diff;
    2384             :     Word32 *p_proto_diff_fx;
    2385      140160 :     num_freq_bands = hParamMC->num_freq_bands;
    2386      140160 :     move16();
    2387      140160 :     num_freq_bands_diff = hParamMC->h_output_synthesis_params.max_band_decorr;
    2388      140160 :     move16();
    2389             : 
    2390      991680 :     FOR( k = 0; k < nY; k++ )
    2391             :     {
    2392      851520 :         p_proto_diff_fx = hParamMC->proto_frame_dec_f_fx + imult1616( shl( k, 1 ), num_freq_bands ); // Q11
    2393             : 
    2394    17881920 :         FOR( l = 0; l < num_freq_bands_diff; l++ )
    2395             :         {
    2396    17030400 :             Cldfb_buffer_real_fx[k][slot_idx][l] = *( p_proto_diff_fx++ ); // Q11
    2397    17030400 :             move32();
    2398    17030400 :             Cldfb_buffer_imag_fx[k][slot_idx][l] = *( p_proto_diff_fx++ ); // Q11
    2399    17030400 :             move32();
    2400             :         }
    2401             :     }
    2402             : 
    2403      140160 :     return;
    2404             : }
    2405             : 
    2406             : /*-------------------------------------------------------------------------
    2407             :  * ivas_param_mc_bin2dec()
    2408             :  *
    2409             :  * decode a number of bits to an integer
    2410             :  *------------------------------------------------------------------------*/
    2411             : /* r : decoded integer */
    2412       10112 : static Word16 ivas_param_mc_bin2dec_fx(
    2413             :     UWord16 bits[PARAM_MC_MAX_BITS], /* i  : bit buffer               */
    2414             :     const Word16 N                   /* i  : number of bits to decode */
    2415             : )
    2416             : {
    2417             :     Word16 i;
    2418             :     Word16 out;
    2419             : 
    2420       10112 :     assert( N <= 16 );
    2421       10112 :     out = 0;
    2422       10112 :     move16();
    2423       40448 :     FOR( i = 0; i < N; i++ )
    2424             :     {
    2425       30336 :         out = add( out, shl( bits[i], sub( sub( N, 1 ), i ) ) );
    2426             :     }
    2427             : 
    2428       10112 :     return out;
    2429             : }
    2430             : 
    2431             : /*-------------------------------------------------------------------------
    2432             :  * ivas_param_mc_uniform_decoder()
    2433             :  *
    2434             :  * decode a uniformily coded sequence of float values
    2435             :  *------------------------------------------------------------------------*/
    2436         393 : static Word16 ivas_param_mc_uniform_decoder_fx(
    2437             :     Word16 *seq,                          /* o  : decoded sequence of float values hParamCodingInfo -> Q-quant*/
    2438             :     const Word16 sz_seq,                  /* i  : number of values to decode       */
    2439             :     const Word16 *alphabet,               /* i  : codebook                         hParamCodingInfo -> Q-quant*/
    2440             :     const Word16 N,                       /* i  : number of bits per coded index   */
    2441             :     UWord16 bit_buffer[PARAM_MC_MAX_BITS] /* i  : bit buffer to decode             */
    2442             : )
    2443             : {
    2444             :     Word16 i;
    2445             :     Word16 idx;
    2446             :     Word16 n_bits;
    2447             : 
    2448         393 :     n_bits = 0;
    2449         393 :     move16();
    2450         393 :     assert( N * sz_seq < PARAM_MC_MAX_BITS );
    2451             : 
    2452       10505 :     FOR( i = 0; i < sz_seq; ++i )
    2453             :     {
    2454       10112 :         idx = ivas_param_mc_bin2dec_fx( &bit_buffer[i * N], N );
    2455       10112 :         seq[i] = alphabet[idx];
    2456       10112 :         move16();
    2457             :     }
    2458             : 
    2459         393 :     n_bits = imult1616( N, sz_seq );
    2460             : 
    2461         393 :     return n_bits;
    2462             : }
    2463             : 
    2464             : 
    2465             : /*-------------------------------------------------------------------------
    2466             :  * ivas_param_mc_range_decoder_LC()
    2467             :  *
    2468             :  * decode a sequency of inidices coded with a range coder
    2469             :  *------------------------------------------------------------------------*/
    2470       17107 : static Word16 ivas_param_mc_range_decoder_LC_fx(
    2471             :     UWord16 *bit_buffer,      /* i  : bit buffer to read from                   */
    2472             :     Word16 *x,                /* o  : decoded indices                           */
    2473             :     Word16 *BER_detect,       /* o  : flag for indicating a bit error           */
    2474             :     const Word16 sz_seq,      /* i  : size of the sequence to be decoded        */
    2475             :     const Word16 sz_alphabet, /* i  : size of the alphabet                      */
    2476             :     const UWord16 *cft,       /* i  : cumulative frequency table                */
    2477             :     const UWord16 *sft,       /* i  : symbol frequency table                    */
    2478             :     const Word16 tot_shift,   /* i  : total frequency as a power of 2           */
    2479             :     const Word16 nbbits       /* i  : maximum bit budget                        */
    2480             : )
    2481             : {
    2482             :     RangeUniDecState rc_st_dec; /* State of the range decoder */
    2483             :     Word16 cur_bit_pos;
    2484             :     Word16 k;
    2485             :     Word16 r;
    2486             : 
    2487             :     /* Start Decoding */
    2488             :     /* Initialize range decoder */
    2489       17107 :     cur_bit_pos = 0;
    2490       17107 :     move16();
    2491       17107 :     rc_uni_dec_init_fx( &rc_st_dec, bit_buffer, sub( nbbits, 32 ) ); /* (nbbits + 30) entries are read by the decoder */
    2492             : 
    2493             :     /* Main Loop through the indices */
    2494      540205 :     FOR( k = 0; k < sz_seq; k++ )
    2495             :     {
    2496      523098 :         r = rc_uni_dec_read_symbol_fastS_fx( &rc_st_dec, cft, sft, sz_alphabet, tot_shift ); /*Alphabet size = 17 (2^4 = 16 MSB symbols + 1 ESC symbol) */
    2497             :                                                                                              /* r is the symbol read, the possible values are {0,1,....alphabet_size - 1}  */
    2498             : 
    2499             :         /* Update bitstream pointer */
    2500      523098 :         cur_bit_pos = rc_uni_dec_virtual_finish_fx( &rc_st_dec );
    2501             : 
    2502             :         /* Confirm that there is no overflow */
    2503      523098 :         IF( GT_16( cur_bit_pos, nbbits ) )
    2504             :         {
    2505           0 :             *BER_detect = s_or( *BER_detect, 1 );
    2506           0 :             move16();
    2507             :         }
    2508             : 
    2509      523098 :         x[k] = r;
    2510      523098 :         move16();
    2511             :     }
    2512             : 
    2513             :     /* We don't need to finish because virtual_finish() already does the same */
    2514             :     /*st->next_bit_pos = rc_uni_dec_finish(&rc_st_dec);*/
    2515             : 
    2516             :     /* Check for bitstream errors */
    2517       17107 :     IF( rc_st_dec.bit_error_detected != 0 )
    2518             :     {
    2519           0 :         *BER_detect = s_or( *BER_detect, 1 );
    2520           0 :         move16();
    2521             :     }
    2522             : 
    2523       17107 :     return cur_bit_pos;
    2524             : }
    2525             : 
    2526             : /*-------------------------------------------------------------------------
    2527             :  * param_mc_compute_interpolator()
    2528             :  *
    2529             :  * compute the interpolator used in the final synthesis
    2530             :  *------------------------------------------------------------------------*/
    2531             : 
    2532        9057 : static void ivas_param_mc_dec_compute_interpolator_fx(
    2533             :     const UWord16 bAttackPresent, /* i  : flag indicating if we have a transient in the current frame */
    2534             :     const UWord16 attackPos,      /* i  : position of the transient                                   */
    2535             :     const UWord16 interp_length,  /* i  : number of interpolation values to be calculated             */
    2536             :     Word16 *interpolator          /* o  : interpolator                                                */
    2537             : )
    2538             : {
    2539             :     Word16 idx;
    2540             : 
    2541        9057 :     IF( bAttackPresent )
    2542             :     {
    2543        3156 :         FOR( idx = 0; idx < attackPos * 2; idx++ )
    2544             :         {
    2545        2750 :             interpolator[idx] = 0;
    2546        2750 :             move16();
    2547             :         }
    2548        4152 :         FOR( ; idx < interp_length; idx++ )
    2549             :         {
    2550        3746 :             interpolator[idx] = 32767; /* 1.0f Q15 */
    2551        3746 :             move16();
    2552             :         }
    2553             :     }
    2554             :     ELSE
    2555             :     {
    2556        8651 :         ivas_jbm_dec_get_adapted_linear_interpolator_fx( DEFAULT_JBM_CLDFB_TIMESLOTS, interp_length, interpolator );
    2557             :     }
    2558             : 
    2559        9057 :     return;
    2560             : }
    2561             : 
    2562             : 
    2563             : /*-------------------------------------------------------------------------
    2564             :  * remove_lfe_from_cy()
    2565             :  *
    2566             :  * remove all LFE related values from a covariance matrix
    2567             :  *------------------------------------------------------------------------*/
    2568             : 
    2569      112316 : static void remove_lfe_from_cy_fx(
    2570             :     const Word16 nY,                               /* i  : dimension of the covariance matrix */
    2571             :     Word16 lfe_indices[PARAM_MC_LOCAL_SZ_LFE_MAP], /* i  : LFE index                          */
    2572             :     Word16 num_lfe,                                /* i  : number of LFEs                     */
    2573             :     Word32 *cy,                                    /* i  : covariance matrix                  */
    2574             :     Word32 *cy_woLFE                               /* o  : covariance matrix with LFE removed */
    2575             : )
    2576             : {
    2577             :     Word16 ch_idx1, ch_idx2;
    2578             :     Word16 lfe_idx1, lfe_idx2;
    2579             :     Word32 *ptrCy;
    2580             :     Word32 *ptrCy_out;
    2581             : 
    2582      112316 :     ptrCy = cy;
    2583      112316 :     ptrCy_out = cy_woLFE;
    2584             : 
    2585      336948 :     FOR( lfe_idx1 = 0; lfe_idx1 < num_lfe + 1; lfe_idx1++ )
    2586             :     {
    2587      794472 :         FOR( ch_idx1 = lfe_indices[lfe_idx1] + 1; ch_idx1 < lfe_indices[lfe_idx1 + 1]; ch_idx1++ )
    2588             :         {
    2589     1709520 :             FOR( lfe_idx2 = 0; lfe_idx2 < num_lfe + 1; lfe_idx2++ )
    2590             :             {
    2591     4059180 :                 FOR( ch_idx2 = lfe_indices[lfe_idx2] + 1; ch_idx2 < lfe_indices[lfe_idx2 + 1]; ch_idx2++ )
    2592             :                 {
    2593     2919500 :                     *( ptrCy_out++ ) = *( ptrCy++ );
    2594     2919500 :                     move32();
    2595             :                 }
    2596     1139680 :                 ptrCy++;
    2597             :             }
    2598      569840 :             ptrCy--;
    2599             :         }
    2600      224632 :         ptrCy += nY;
    2601             :     }
    2602             : 
    2603      112316 :     return;
    2604             : }
    2605             : 
    2606             : 
    2607             : /*-------------------------------------------------------------------------
    2608             :  * ivas_param_mc_get_mixing_matrices()
    2609             :  *
    2610             :  * calculate the direct and residual mixing matrices
    2611             :  * using the covariance method
    2612             :  *------------------------------------------------------------------------*/
    2613             : 
    2614      113120 : static void ivas_param_mc_get_mixing_matrices_fx(
    2615             :     PARAM_MC_DEC_HANDLE hParamMC, /* i  : Parametric MC handle */
    2616             :     IVAS_OUTPUT_SETUP *hSynthesisOutputSetup,
    2617             :     Word32 Cx_in_fixed[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS], /* i  : input covariance for all parameter bands         Q(31 - Cx_in_e)*/
    2618             :     Word16 Cx_in_e,
    2619             :     const Word16 param_band_idx, /* i  : parameter band index                             */
    2620             :     Word32 *mixing_matrix_fx[],  // Q(31 - mixing_matrix_e)
    2621             :     Word16 *mixing_matrix_e,
    2622             :     Word32 *mixing_matrix_res_fx[], // Q(31 - mixing_matrix_res_e)
    2623             :     Word16 *mixing_matrix_res_e,
    2624             :     const Word16 nY_intern,                     /* i  : number of channels in the transported format     */
    2625             :     const PARAM_MC_SYNTHESIS_CONF synth_config, /* i  : Parametric MC synthesis config                   */
    2626             :     const Word16 nX,                            /* i  : number of transport channels                     */
    2627             :     const Word16 nY_cov                         /* i  : number of covariance synthesis output channels   */
    2628             : )
    2629             : {
    2630      113120 :     Word16 matSize = MAX_OUTPUT_CHANNELS * MAX_OUTPUT_CHANNELS;
    2631             :     Word16 nY_band;
    2632             :     Word16 num_lfe_bands;
    2633             :     Word16 brange[2];
    2634             :     UWord16 i;
    2635             :     Word16 ch_idx1, ch_idx2, lfe_idx1, lfe_idx2;
    2636             :     Word16 remove_lfe;
    2637             :     Word16 lfe_indices[PARAM_MC_LOCAL_SZ_LFE_MAP];
    2638             : 
    2639             :     Word32 Cx_fx[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS];
    2640             :     Word32 Cy_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS];
    2641             : 
    2642             :     Word32 Cy_full_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS];
    2643             : 
    2644             :     Word32 Cr_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS]; // Q(31 - Cr_e)
    2645             :     Word16 Cr_e;
    2646             :     Word32 Cy_diag_fx[MAX_OUTPUT_CHANNELS]; // Q(31 - Cy_diag_buff_e)
    2647             :     Word16 Cy_diag_buff_e[MAX_OUTPUT_CHANNELS];
    2648             :     Word32 mixing_matrix_local_fx[MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS]; // Q(31 - mixing_matrix_local_e)
    2649      113120 :     Word16 Cy_diag_e = 0, mixing_matrix_local_e = 0;
    2650             :     Word32 Cproto_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS]; // Q(31 - Cproto_e)
    2651             :     Word16 Cproto_e;
    2652             :     Word32 *proto_matrix_ptr_fx; // Q(31 - proto_matrix_ptr_e)
    2653             :     Word32 *Cx_state_fx;         // Q(31 - Cx_state_e)
    2654             :     Word32 *Cx_old_state_fx;
    2655             :     Word32 Cy_state_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS]; // Q(31 - Cy_state_e)
    2656             :     Word32 *Cy_old_state_fx;
    2657             :     Word16 Cx_state_e;
    2658             :     Word16 Cy_state_e;
    2659             :     Word32 mixing_matrix_res_local_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS]; // Q(31 - mixing_matrix_res_local_e)
    2660             :     Word16 mixing_matrix_res_local_e;
    2661             :     Word32 L_tmp;
    2662             :     Word16 tmp_e, tmp;
    2663             : 
    2664      113120 :     Word16 proto_matrix_e = hParamMC->h_output_synthesis_params.proto_matrix_e;
    2665      113120 :     move16();
    2666             :     Word32 proto_matrix_noLFE_fx[PARAM_MC_MAX_TRANSPORT_CHANS * MAX_CICP_CHANNELS]; // Q(31 - proto_matrix_noLFE_e)
    2667             : 
    2668             :     Word32 mat_mult_buffer1_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS]; // Q(31 - mat_mult_buffer1_e)
    2669             : 
    2670             :     Word32 Cproto_diag_fx[MAX_CICP_CHANNELS]; // Q(31 - Cproto_diag_e)
    2671             :     Word16 mat_mult_buffer1_e, proto_matrix_ptr_e, Cproto_diag_e;
    2672             : 
    2673             :     Word32 *ptrMM_fx;
    2674             :     Word32 *ptrMM_out_fx;
    2675             : 
    2676             :     Word16 Cy_e, Cx_e;
    2677             :     Word16 Cy_full_e;
    2678      113120 :     Word16 new_e = 0;
    2679      113120 :     move16();
    2680             : 
    2681      113120 :     set_zero_fx( Cproto_fx, MAX_CICP_CHANNELS * MAX_CICP_CHANNELS );
    2682      113120 :     set_zero_fx( mat_mult_buffer1_fx, MAX_CICP_CHANNELS * MAX_CICP_CHANNELS );
    2683      113120 :     set_zero_fx( proto_matrix_noLFE_fx, PARAM_MC_MAX_TRANSPORT_CHANS * MAX_CICP_CHANNELS );
    2684      113120 :     set_zero_fx( mixing_matrix_local_fx, MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS );
    2685      113120 :     set_zero_fx( mixing_matrix_res_local_fx, MAX_CICP_CHANNELS * MAX_CICP_CHANNELS );
    2686      113120 :     Word16 proto_matrix_noLFE_e = 0;
    2687      113120 :     move16();
    2688             : 
    2689             :     Word32 Cx_in_fx[PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS];
    2690             : 
    2691      113120 :     Copy32( Cx_in_fixed, Cx_in_fx, PARAM_MC_MAX_TRANSPORT_CHANS * PARAM_MC_MAX_TRANSPORT_CHANS );
    2692             : 
    2693      113120 :     nY_band = nY_cov;
    2694      113120 :     move16();
    2695      113120 :     num_lfe_bands = 0;
    2696      113120 :     move16();
    2697      113120 :     remove_lfe = 0;
    2698      113120 :     move16();
    2699             : 
    2700      113120 :     set16_fx( lfe_indices, -1, PARAM_MC_LOCAL_SZ_LFE_MAP );
    2701      113120 :     IF( hSynthesisOutputSetup->num_lfe )
    2702             :     {
    2703             :         Word32 *proto_matrix_ptr_in_fx;
    2704      226240 :         FOR( lfe_idx1 = 0; lfe_idx1 < hSynthesisOutputSetup->num_lfe; lfe_idx1++ )
    2705             :         {
    2706      113120 :             lfe_indices[lfe_idx1 + 1] = hSynthesisOutputSetup->index_lfe[lfe_idx1];
    2707      113120 :             move16();
    2708             :         }
    2709      113120 :         lfe_indices[hSynthesisOutputSetup->num_lfe + 1] = nY_cov;
    2710      113120 :         move16();
    2711      113120 :         proto_matrix_ptr_fx = &proto_matrix_noLFE_fx[0];
    2712      113120 :         proto_matrix_ptr_in_fx = &hParamMC->h_output_synthesis_params.proto_matrix_fx[0];
    2713      113120 :         proto_matrix_noLFE_e = proto_matrix_e;
    2714      113120 :         move16();
    2715             : 
    2716      113120 :         set_zero_fx( proto_matrix_noLFE_fx, PARAM_MC_MAX_TRANSPORT_CHANS * MAX_CICP_CHANNELS );
    2717             : 
    2718      339920 :         FOR( ch_idx1 = 0; ch_idx1 < nX; ch_idx1++ )
    2719             :         {
    2720      680400 :             FOR( lfe_idx1 = 0; lfe_idx1 < hSynthesisOutputSetup->num_lfe + 1; lfe_idx1++ )
    2721             :             {
    2722     1608800 :                 FOR( ch_idx2 = lfe_indices[lfe_idx1] + 1; ch_idx2 < lfe_indices[lfe_idx1 + 1]; ch_idx2++ )
    2723             :                 {
    2724     1155200 :                     *( proto_matrix_ptr_fx++ ) = *( proto_matrix_ptr_in_fx++ );
    2725     1155200 :                     move32();
    2726             :                 }
    2727      453600 :                 proto_matrix_ptr_in_fx++;
    2728             :             }
    2729      226800 :             proto_matrix_ptr_in_fx--;
    2730             :         }
    2731             : 
    2732      113120 :         proto_matrix_ptr_e = proto_matrix_e;
    2733      113120 :         move16();
    2734             :     }
    2735             : 
    2736      113120 :     if ( hParamMC->hMetadataPMC->lfe_on )
    2737             :     {
    2738       10646 :         num_lfe_bands = PARAM_MC_MAX_BAND_LFE;
    2739       10646 :         move16();
    2740             :     }
    2741      113120 :     IF( hSynthesisOutputSetup->num_lfe > 0 && param_band_idx >= num_lfe_bands )
    2742             :     {
    2743      112316 :         remove_lfe = 1;
    2744      112316 :         move16();
    2745      112316 :         nY_band = sub( nY_cov, hSynthesisOutputSetup->num_lfe );
    2746      112316 :         proto_matrix_ptr_fx = proto_matrix_noLFE_fx;
    2747      112316 :         proto_matrix_ptr_e = proto_matrix_noLFE_e;
    2748      112316 :         move16();
    2749             :     }
    2750             :     ELSE
    2751             :     {
    2752         804 :         proto_matrix_ptr_fx = hParamMC->h_output_synthesis_params.proto_matrix_fx;
    2753         804 :         proto_matrix_ptr_e = hParamMC->h_output_synthesis_params.proto_matrix_e;
    2754         804 :         move16();
    2755             :     }
    2756             : 
    2757      113120 :     brange[0] = hParamMC->band_grouping[param_band_idx];
    2758      113120 :     move16();
    2759      113120 :     brange[1] = hParamMC->band_grouping[param_band_idx + 1];
    2760      113120 :     move16();
    2761             : 
    2762      113120 :     Cx_state_fx = Cx_in_fx;
    2763      113120 :     Cx_old_state_fx = hParamMC->h_output_synthesis_cov_state.cx_old_fx[param_band_idx];
    2764      113120 :     Cy_old_state_fx = hParamMC->h_output_synthesis_cov_state.cy_old_fx[param_band_idx];
    2765             : 
    2766             : 
    2767             :     /*  Getting mixing mtx */
    2768             :     /* estimate target cov from input cov and proto_matrix */
    2769             : 
    2770      113120 :     Cx_state_e = Cx_in_e;
    2771      113120 :     move16();
    2772      113120 :     matrix_product_fx( hParamMC->proto_matrix_int_fx, nY_intern, nX, 0, Cx_state_fx, nX, nX, 0, mat_mult_buffer1_fx );
    2773      113120 :     mat_mult_buffer1_e = add( hParamMC->proto_matrix_int_e, Cx_in_e );
    2774             : 
    2775      113120 :     matrix_product_fx( mat_mult_buffer1_fx, nY_intern, nX, 0, hParamMC->proto_matrix_int_fx, nY_intern, nX, 1, Cproto_fx );
    2776      113120 :     Cproto_e = add( mat_mult_buffer1_e, hParamMC->proto_matrix_int_e );
    2777             : 
    2778      804960 :     FOR( ch_idx1 = 0; ch_idx1 < nY_intern; ch_idx1++ )
    2779             :     {
    2780      691840 :         IF( BASOP_Util_Cmp_Mant32Exp( Cproto_fx[ch_idx1 + ( ch_idx1 * nY_intern )], Cproto_e, 0, 0 ) < 0 )
    2781             :         {
    2782           0 :             Cproto_fx[ch_idx1 + ( ch_idx1 * nY_intern )] = 0;
    2783           0 :             move32();
    2784             :         }
    2785             :     }
    2786             : 
    2787      113120 :     set_zero_fx( Cy_state_fx, matSize );
    2788      113120 :     Cy_state_e = 0;
    2789      113120 :     move16();
    2790             : 
    2791      339360 :     ivas_param_mc_dequantize_cov_fx( hParamMC,
    2792      113120 :                                      hParamMC->icld_q_fx + L_mult0( param_band_idx, hParamMC->hMetadataPMC->ild_mapping_conf->ild_map_size_lfe ),
    2793      113120 :                                      hParamMC->icc_q_fx + L_mult0( param_band_idx, hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe ),
    2794             :                                      param_band_idx, nY_cov,
    2795             :                                      synth_config,
    2796             :                                      nY_intern,
    2797             :                                      nX, Cx_state_fx, Cx_state_e, Cproto_fx, Cproto_e, Cy_state_fx, &Cy_state_e );
    2798             : 
    2799             :     // dbgwrite2_txt(Cy_state_fx,nY_intern*nY_intern,"../cy_state_fx.txt");
    2800             : 
    2801             :     /* Smoothing: Sum over two buffers */
    2802      113120 :     IF( hParamMC->hMetadataPMC->bAttackPresent )
    2803             :     {
    2804             :         /* no smoothing on attacks */
    2805        5001 :         Copy32( Cx_state_fx, Cx_fx, imult1616( nX, nX ) );
    2806        5001 :         Copy32( Cy_state_fx, Cy_full_fx, imult1616( nY_cov, nY_cov ) );
    2807        5001 :         Cy_full_e = Cy_state_e;
    2808        5001 :         move16();
    2809        5001 :         Cx_e = Cx_state_e;
    2810        5001 :         move16();
    2811             :     }
    2812             :     ELSE
    2813             :     {
    2814             :         /* smoothing gains are now identical to one, simply add up */
    2815             :         // v_add( Cy_state, Cy_old_state, Cy_full, nY_cov * nY_cov );
    2816             : 
    2817      108119 :         v_add_fixed_me( Cx_state_fx, Cx_state_e, Cx_old_state_fx, hParamMC->h_output_synthesis_cov_state.cx_old_e[param_band_idx], Cx_fx, &Cx_e, imult1616( nX, nX ), 1 );
    2818      108119 :         v_add_fixed_me( Cy_state_fx, Cy_state_e, Cy_old_state_fx, hParamMC->h_output_synthesis_cov_state.cy_old_e[param_band_idx], Cy_full_fx, &Cy_full_e, imult1616( nY_cov, nY_cov ), 1 );
    2819             :     }
    2820             : 
    2821      113120 :     Copy32( Cx_state_fx, Cx_old_state_fx, imult1616( nX, nX ) );
    2822             : 
    2823      113120 :     Copy32( Cy_state_fx, Cy_old_state_fx, imult1616( nY_cov, nY_cov ) );
    2824             : 
    2825      113120 :     hParamMC->h_output_synthesis_cov_state.cx_old_e[param_band_idx] = Cx_state_e;
    2826      113120 :     move16();
    2827      113120 :     hParamMC->h_output_synthesis_cov_state.cy_old_e[param_band_idx] = Cy_state_e;
    2828      113120 :     move16();
    2829             : 
    2830      113280 :     FOR( i = 0; i < nX * nX; i++ )
    2831             :     {
    2832      113240 :         if ( Cx_old_state_fx[i] != 0 )
    2833             :         {
    2834      113080 :             new_e = hParamMC->h_output_synthesis_cov_state.cx_old_e[param_band_idx];
    2835      113080 :             move16();
    2836      113080 :             BREAK;
    2837             :         }
    2838             :     }
    2839             : 
    2840      113120 :     hParamMC->h_output_synthesis_cov_state.cx_old_e[param_band_idx] = new_e;
    2841      113120 :     move16();
    2842             : 
    2843      113120 :     new_e = 0;
    2844      113120 :     move16();
    2845             : 
    2846      114560 :     FOR( i = 0; i < nY_cov * nY_cov; i++ )
    2847             :     {
    2848      114520 :         if ( Cy_old_state_fx[i] != 0 )
    2849             :         {
    2850      113080 :             new_e = hParamMC->h_output_synthesis_cov_state.cy_old_e[param_band_idx];
    2851      113080 :             move16();
    2852      113080 :             BREAK;
    2853             :         }
    2854             :     }
    2855             : 
    2856      113120 :     hParamMC->h_output_synthesis_cov_state.cy_old_e[param_band_idx] = new_e;
    2857      113120 :     move16();
    2858             : 
    2859             :     /* remove LFE IF necessary */
    2860      113120 :     IF( remove_lfe )
    2861             :     {
    2862             : 
    2863      112316 :         Cy_e = Cy_full_e;
    2864      112316 :         remove_lfe_from_cy_fx( nY_cov, lfe_indices, hSynthesisOutputSetup->num_lfe, Cy_full_fx, Cy_fx );
    2865             :     }
    2866             :     ELSE
    2867             :     {
    2868         804 :         Copy32( Cy_full_fx, Cy_fx, imult1616( nY_band, nY_band ) );
    2869         804 :         Cy_e = Cy_full_e;
    2870         804 :         move16();
    2871             :     }
    2872             : 
    2873      113120 :     matrix_product_fx( proto_matrix_ptr_fx, nY_band, nX, 0, Cx_fx, nX, nX, 0, mat_mult_buffer1_fx );
    2874      113120 :     mat_mult_buffer1_e = add( proto_matrix_ptr_e, Cx_e );
    2875             : 
    2876      113120 :     matrix_product_diag_fx( mat_mult_buffer1_fx, mat_mult_buffer1_e, nY_band, nX, 0, proto_matrix_ptr_fx, proto_matrix_ptr_e, nY_band, nX, 1, Cproto_diag_fx, &Cproto_diag_e );
    2877             : 
    2878             :     /* make sure we have no negative entries in Cproto_diag due to rounding errors */
    2879             : 
    2880      688444 :     FOR( ch_idx1 = 0; ch_idx1 < nY_band; ch_idx1++ )
    2881             :     {
    2882      575324 :         if ( Cproto_diag_fx[ch_idx1] < 0 )
    2883             :         {
    2884           0 :             Cproto_diag_fx[ch_idx1] = 0;
    2885           0 :             move16();
    2886             :         }
    2887             :     }
    2888             : 
    2889             : 
    2890             :     /* Computing the mixing matrices */
    2891             : 
    2892             :     /* bands with decorr */
    2893      113120 :     IF( LT_16( brange[0], hParamMC->h_output_synthesis_params.max_band_decorr ) )
    2894             :     {
    2895       90900 :         computeMixingMatrices_fx( nX, nY_band, Cx_fx, Cx_e, Cy_fx, Cy_e, proto_matrix_ptr_fx, proto_matrix_ptr_e, 0, PARAM_MC_REG_SX_FX, 0, PARAM_MC_REG_GHAT_FX, 0, mixing_matrix_local_fx, &mixing_matrix_local_e, Cr_fx, &Cr_e );
    2896             :         /* Compute mixing matrix FOR residual */
    2897       90900 :         computeMixingMatricesResidual_fx( nY_band, Cproto_diag_fx, Cproto_diag_e, Cr_fx, Cr_e, PARAM_MC_REG_SX_FX, 0, PARAM_MC_REG_GHAT_FX, 0, mixing_matrix_res_local_fx, &mixing_matrix_res_local_e );
    2898             : 
    2899       90900 :         IF( NE_16( mixing_matrix_res_local_e, mixing_matrix_local_e ) )
    2900             :         {
    2901       54675 :             tmp = getScaleFactor32( mixing_matrix_local_fx, MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS );
    2902       54675 :             scale_sig32( mixing_matrix_local_fx, MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS, tmp );
    2903       54675 :             mixing_matrix_local_e = sub( mixing_matrix_local_e, tmp );
    2904             : 
    2905       54675 :             tmp = getScaleFactor32( mixing_matrix_res_local_fx, MAX_CICP_CHANNELS * MAX_CICP_CHANNELS );
    2906       54675 :             scale_sig32( mixing_matrix_res_local_fx, MAX_CICP_CHANNELS * MAX_CICP_CHANNELS, tmp );
    2907       54675 :             mixing_matrix_res_local_e = sub( mixing_matrix_res_local_e, tmp );
    2908             : 
    2909       54675 :             scale_sig32( mixing_matrix_local_fx, MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS, sub( mixing_matrix_local_e, s_max( mixing_matrix_local_e, mixing_matrix_res_local_e ) ) );
    2910       54675 :             scale_sig32( mixing_matrix_res_local_fx, MAX_CICP_CHANNELS * MAX_CICP_CHANNELS, sub( mixing_matrix_res_local_e, s_max( mixing_matrix_local_e, mixing_matrix_res_local_e ) ) );
    2911             : 
    2912       54675 :             mixing_matrix_res_local_e = mixing_matrix_local_e = s_max( mixing_matrix_local_e, mixing_matrix_res_local_e );
    2913       54675 :             move16();
    2914             :         }
    2915       90900 :         IF( remove_lfe )
    2916             :         {
    2917       90096 :             set_zero_fx( mixing_matrix_res_fx[param_band_idx], imult1616( nY_cov, nY_cov ) );
    2918             : 
    2919       90096 :             ptrMM_fx = mixing_matrix_res_local_fx;
    2920       90096 :             ptrMM_out_fx = mixing_matrix_res_fx[param_band_idx];
    2921      270288 :             FOR( lfe_idx1 = 0; lfe_idx1 < hSynthesisOutputSetup->num_lfe + 1; lfe_idx1++ )
    2922             :             {
    2923      637152 :                 FOR( ch_idx1 = lfe_indices[lfe_idx1] + 1; ch_idx1 < lfe_indices[lfe_idx1 + 1]; ch_idx1++ )
    2924             :                 {
    2925     1370880 :                     FOR( lfe_idx2 = 0; lfe_idx2 < hSynthesisOutputSetup->num_lfe + 1; lfe_idx2++ )
    2926             :                     {
    2927     3253680 :                         FOR( ch_idx2 = lfe_indices[lfe_idx2] + 1; ch_idx2 < lfe_indices[lfe_idx2 + 1]; ch_idx2++ )
    2928             :                         {
    2929     2339760 :                             *( ptrMM_out_fx++ ) = *( ptrMM_fx++ );
    2930     2339760 :                             move32();
    2931             :                         }
    2932      913920 :                         ptrMM_out_fx++;
    2933             :                     }
    2934      456960 :                     ptrMM_out_fx--;
    2935             :                 }
    2936      180192 :                 ptrMM_out_fx += nY_cov;
    2937             :             }
    2938       90096 :             mixing_matrix_res_e[param_band_idx] = mixing_matrix_res_local_e;
    2939       90096 :             move16();
    2940             :         }
    2941             :         ELSE
    2942             :         {
    2943         804 :             Copy32( mixing_matrix_res_local_fx, mixing_matrix_res_fx[param_band_idx], imult1616( nY_cov, nY_cov ) );
    2944         804 :             mixing_matrix_res_e[param_band_idx] = mixing_matrix_res_local_e;
    2945         804 :             move16();
    2946             :         }
    2947             :     }
    2948       22220 :     ELSE IF( brange[0] < hParamMC->max_band_energy_compensation )
    2949             :     {
    2950             :         /* Compute mixing matrices (energy compensation only) */
    2951       22220 :         computeMixingMatrices_fx( nX, nY_band, Cx_fx, Cx_e, Cy_fx, Cy_e, proto_matrix_ptr_fx, proto_matrix_ptr_e, 1, PARAM_MC_REG_SX_FX, 0, PARAM_MC_REG_GHAT_FX, 0, mixing_matrix_local_fx, &mixing_matrix_local_e, Cr_fx, &Cr_e );
    2952             :     }
    2953             :     ELSE
    2954             :     {
    2955             :         /*IF neither decorrelation nor energy compensation is applied*/
    2956           0 :         FOR( i = 0; i < nY_band; i++ )
    2957             :         {
    2958           0 :             tmp = BASOP_Util_Divide3232_Scale( Cy_fx[i], L_add( Cproto_diag_fx[i], EPSILON_FX ), &tmp_e );
    2959           0 :             tmp_e = add( Cy_diag_e, Cproto_diag_e );
    2960           0 :             L_tmp = Sqrt32( L_deposit_h( tmp ), &tmp_e );
    2961           0 :             Cy_diag_fx[i] = L_tmp;
    2962           0 :             move32();
    2963           0 :             Cy_diag_buff_e[i] = tmp_e;
    2964           0 :             move16();
    2965             :         }
    2966             : 
    2967             : 
    2968           0 :         Cy_diag_e = Cy_diag_buff_e[0];
    2969           0 :         move16();
    2970             : 
    2971           0 :         FOR( i = 1; i < nY_band; i++ )
    2972             :         {
    2973           0 :             if ( LT_16( Cy_diag_e, Cy_diag_buff_e[i] ) )
    2974             :             {
    2975           0 :                 Cy_diag_e = Cy_diag_buff_e[i];
    2976           0 :                 move16();
    2977             :             }
    2978             :         }
    2979             : 
    2980           0 :         FOR( i = 0; i < nY_band; i++ )
    2981             :         {
    2982           0 :             Cy_diag_fx[i] = L_shr( Cy_diag_fx[i], sub( Cy_diag_e, Cy_diag_buff_e[i] ) );
    2983           0 :             move32();
    2984             :         }
    2985             : 
    2986           0 :         diag_matrix_product_fx( Cy_diag_fx, Cy_diag_e, nY_band, proto_matrix_ptr_fx, proto_matrix_ptr_e, nY_band, nX, 0, mixing_matrix_local_fx, &mixing_matrix_local_e );
    2987             :     }
    2988             : 
    2989      113120 :     IF( remove_lfe )
    2990             :     {
    2991      112316 :         set_zero_fx( mixing_matrix_fx[param_band_idx], imult1616( nX, nY_cov ) );
    2992      112316 :         ptrMM_fx = mixing_matrix_local_fx;
    2993      112316 :         ptrMM_out_fx = mixing_matrix_fx[param_band_idx];
    2994      337468 :         FOR( ch_idx1 = 0; ch_idx1 < nX; ch_idx1++ )
    2995             :         {
    2996      675456 :             FOR( lfe_idx1 = 0; lfe_idx1 < hSynthesisOutputSetup->num_lfe + 1; lfe_idx1++ )
    2997             :             {
    2998     1595704 :                 FOR( ch_idx2 = lfe_indices[lfe_idx1] + 1; ch_idx2 < lfe_indices[lfe_idx1 + 1]; ch_idx2++ )
    2999             :                 {
    3000     1145400 :                     *( ptrMM_out_fx++ ) = *( ptrMM_fx++ );
    3001     1145400 :                     move32();
    3002             :                 }
    3003      450304 :                 ptrMM_out_fx++;
    3004             :             }
    3005      225152 :             ptrMM_out_fx--;
    3006             :         }
    3007             : 
    3008      112316 :         mixing_matrix_e[param_band_idx] = mixing_matrix_local_e;
    3009      112316 :         move16();
    3010             :     }
    3011             :     ELSE
    3012             :     {
    3013         804 :         Copy32( mixing_matrix_local_fx, mixing_matrix_fx[param_band_idx], imult1616( nY_cov, nX ) );
    3014         804 :         mixing_matrix_e[param_band_idx] = mixing_matrix_local_e;
    3015         804 :         move16();
    3016             :     }
    3017             : 
    3018      113120 :     return;
    3019             : }
    3020             : 
    3021             : 
    3022             : /*-------------------------------------------------------------------------
    3023             :  * ivas_param_mc_get_mono_stereo_mixing_matrices()
    3024             :  *
    3025             :  * calculate the direct and residual mixing matrices
    3026             :  * for mono and stereo output
    3027             :  *------------------------------------------------------------------------*/
    3028             : 
    3029             : 
    3030             : /*-------------------------------------------------------------------------
    3031             :  * param_mc_update_mixing_matrices()
    3032             :  *
    3033             :  * update mixing matrix buffers
    3034             :  *------------------------------------------------------------------------*/
    3035             : 
    3036        8760 : static void param_mc_update_mixing_matrices_fx(
    3037             :     PARAM_MC_DEC_HANDLE hParamMC, /* i/o: Parametric MC handle                                  */
    3038             :     Word32 *mixing_matrix[],      /* i  : direct mixing matrices for the frame just processed   */
    3039             :     Word16 *mixing_matrix_exp,
    3040             :     Word32 *mixing_matrix_res[], /* i  : residual mixing matrices for the frame just processed */
    3041             :     Word16 *mixing_matrix_res_exp,
    3042             :     const UWord16 nX,  /* i  : number of transport channels                          */
    3043             :     const UWord16 nY ) /* i  : number of synthesis channels                          */
    3044             : {
    3045             :     UWord16 param_band_idx;
    3046             : 
    3047      123780 :     FOR( param_band_idx = 0; param_band_idx < hParamMC->hMetadataPMC->nbands_coded; param_band_idx++ )
    3048             :     {
    3049             :         Word16 brange[2];
    3050             : 
    3051      115020 :         brange[0] = hParamMC->band_grouping[param_band_idx];
    3052      115020 :         move16();
    3053      115020 :         brange[1] = hParamMC->band_grouping[param_band_idx + 1];
    3054      115020 :         move16();
    3055             : 
    3056      115020 :         Copy32( mixing_matrix[param_band_idx], hParamMC->h_output_synthesis_cov_state.mixing_matrix_old_fx[param_band_idx], imult1616( nX, nY ) );
    3057      115020 :         hParamMC->h_output_synthesis_cov_state.mixing_matrix_old_exp[param_band_idx] = mixing_matrix_exp[param_band_idx];
    3058      115020 :         move16();
    3059             : 
    3060      115020 :         IF( LT_16( brange[0], hParamMC->h_output_synthesis_params.max_band_decorr ) )
    3061             :         {
    3062       90900 :             Copy32( mixing_matrix_res[param_band_idx], hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_old_fx[param_band_idx], imult1616( nY, nY ) );
    3063       90900 :             hParamMC->h_output_synthesis_cov_state.mixing_matrix_res_old_exp[param_band_idx] = mixing_matrix_res_exp[param_band_idx];
    3064       90900 :             move16();
    3065             :         }
    3066             :     }
    3067             : 
    3068        8760 :     return;
    3069             : }
    3070             : 
    3071             : 
    3072             : /*-------------------------------------------------------------------------
    3073             :  * ivas_param_mc_dequantize_cov()
    3074             :  *
    3075             :  * generate the target covariance matrix
    3076             :  *------------------------------------------------------------------------*/
    3077             : 
    3078             : 
    3079             : /*-------------------------------------------------------------------------
    3080             :  * ivas_param_mc_dequantize_cov_fx()
    3081             :  *
    3082             :  * generate the target covariance matrix
    3083             :  *------------------------------------------------------------------------*/
    3084             : 
    3085      113120 : static void ivas_param_mc_dequantize_cov_fx(
    3086             :     PARAM_MC_DEC_HANDLE hParamMC,             /* i  : Parametric MC handle                                    */
    3087             :     Word16 *ild_q_fx,                         /* i  : sequence of dequantized ILD values                   Q8 */
    3088             :     Word16 *icc_q_fx,                         /* i  : sequence of dequantized ICC values                   Q15*/
    3089             :     const Word16 param_band_index,            /* i  : current parameter band                                  */
    3090             :     const Word16 nY_cov,                      /* i  : number of output channels in the covariance synthesis   */
    3091             :     const PARAM_MC_SYNTHESIS_CONF synth_conf, /* i  : Parametric MC synthesis configuration                   */
    3092             :     const Word16 nY_int,                      /* i  : number of channels in the transported format            */
    3093             :     const Word16 nX,                          /* i  : number of transport channels                            */
    3094             :     Word32 *Cx_state_fx,                      /* i  : transport channel covariance matrix                     */
    3095             :     Word16 Cx_state_e,                        /* i  : exponent for transport channel covariance matrix        */
    3096             :     Word32 *Cproto_fx,                        /* i  : prototype matrix                                        */
    3097             :     Word16 Cproto_e,                          /* i  : exponent for prototype matrix                           */
    3098             :     Word32 *Cy_state_fx,                      /* o  : target covariance matrix                                */
    3099             :     Word16 *Cy_state_e                        /* o  : exponent for target covariance matrix                   */
    3100             : )
    3101             : {
    3102             :     Word16 Cy_buf_e[MAX_OUTPUT_CHANNELS * MAX_OUTPUT_CHANNELS];
    3103             :     Word16 Cp_buf_e[MAX_OUTPUT_CHANNELS * MAX_OUTPUT_CHANNELS];
    3104             : 
    3105             :     Word32 Nrqq_fx[MAX_OUTPUT_CHANNELS]; // Q(31 - Nrqq_e)
    3106             :     Word16 Nrqq_e[MAX_OUTPUT_CHANNELS];
    3107             :     Word32 a_fx[MAX_OUTPUT_CHANNELS]; // Q(31 - a_e)
    3108             :     Word16 a_e[MAX_OUTPUT_CHANNELS];
    3109             :     Word16 k;
    3110             :     Word16 l;
    3111             :     Word32 *Cyp_fx; // Q(31 - Cyp_e)
    3112             :     Word16 *Cyp_e;
    3113             :     Word32 ap_fx; // Q(31 - ap_e)
    3114             :     Word16 ap_e;
    3115             :     Word32 L_tmp;
    3116             :     Word16 tmp, tmp_e;
    3117             :     const PARAM_MC_ILD_MAPPING *h_ild_mapping;
    3118             :     Word32 Cy_state_int_fx[MAX_OUTPUT_CHANNELS * MAX_OUTPUT_CHANNELS];
    3119             :     Word16 Cy_state_int_e[MAX_OUTPUT_CHANNELS * MAX_OUTPUT_CHANNELS];
    3120             : 
    3121      113120 :     set16_fx( Cp_buf_e, Cproto_e, MAX_OUTPUT_CHANNELS * MAX_OUTPUT_CHANNELS );
    3122      113120 :     set32_fx( Nrqq_fx, 0, MAX_OUTPUT_CHANNELS );
    3123      113120 :     set16_fx( Nrqq_e, 0, MAX_OUTPUT_CHANNELS );
    3124      113120 :     h_ild_mapping = hParamMC->hMetadataPMC->ild_mapping_conf;
    3125             : 
    3126             :     /*get back Nrg*/
    3127      113120 :     tmp = 0;
    3128      113120 :     move16();
    3129             : 
    3130      804960 :     FOR( k = 0; k < nY_int; k++ )
    3131             :     {
    3132      691840 :         Word32 ref_ener_fx = 0; // Q(31 - ref_ener_e)
    3133      691840 :         move32();
    3134      691840 :         Word16 ref_ener_e = 0;
    3135      691840 :         move16();
    3136             :         Word16 ref_channel_cnt;
    3137             :         Word16 ref_channel_idx;
    3138             : 
    3139     1608800 :         FOR( ref_channel_cnt = 0; ref_channel_cnt < h_ild_mapping->num_ref_channels[k]; ref_channel_cnt++ )
    3140             :         {
    3141      916960 :             ref_channel_idx = h_ild_mapping->ref_channel_idx[k][ref_channel_cnt];
    3142      916960 :             move16();
    3143      916960 :             ref_ener_fx = BASOP_Util_Add_Mant32Exp( Cx_state_fx[ref_channel_idx + ( ref_channel_idx * nX )], Cx_state_e, ref_ener_fx, ref_ener_e, &ref_ener_e );
    3144      916960 :             move32();
    3145             :         }
    3146             : 
    3147      691840 :         L_tmp = Mpy_32_16_1( 713378626, ild_q_fx[k] );     /*Q24 : L_tmp Q31 for log2(10)/10 -> 713378626 */
    3148      691840 :         L_tmp = BASOP_util_Pow2( L_tmp, 31 - 24, &tmp_e ); /*powf( 10.0f, ild_q_fx[k] / 10.0f )*/
    3149      691840 :         L_tmp = Mpy_32_32( L_tmp, Mpy_32_16_1( ref_ener_fx, hParamMC->hMetadataPMC->ild_factors_fx[k] ) );
    3150             : 
    3151      691840 :         Nrqq_fx[h_ild_mapping->ild_index[k]] = L_tmp;
    3152      691840 :         move32();
    3153      691840 :         Nrqq_e[h_ild_mapping->ild_index[k]] = add( tmp_e, ref_ener_e );
    3154      691840 :         move16();
    3155             :     }
    3156             : 
    3157             :     /*  estimate ICCs from estimated Cproto */
    3158             : 
    3159      804960 :     FOR( k = 0; k < nY_int; k++ )
    3160             :     {
    3161             :         // a_fx[k] = 1.f / ( sqrtf( Cproto_fx[k + nY_int * k] ) + EPSILON );
    3162      691840 :         tmp_e = Cp_buf_e[k + ( nY_int * k )];
    3163      691840 :         move16();
    3164             : 
    3165      691840 :         IF( Cproto_fx[k + ( nY_int * k )] != 0 )
    3166             :         {
    3167      691600 :             L_tmp = ISqrt32( Cproto_fx[k + ( nY_int * k )], &tmp_e );
    3168             :         }
    3169             :         ELSE
    3170             :         {
    3171         240 :             L_tmp = INV_EPSILON_MANT;
    3172         240 :             move32();
    3173         240 :             tmp_e = 15;
    3174         240 :             move16();
    3175             :         }
    3176      691840 :         a_fx[k] = L_tmp;
    3177      691840 :         move32();
    3178      691840 :         a_e[k] = tmp_e;
    3179      691840 :         move16();
    3180             : 
    3181     4961280 :         FOR( l = 0; l < nY_int; l++ )
    3182             :         {
    3183     4269440 :             Cy_state_int_fx[( k * nY_int ) + l] = Mpy_32_32( Cproto_fx[( k * nY_int ) + l], a_fx[k] );
    3184     4269440 :             move32();
    3185     4269440 :             Cy_state_int_e[( k * nY_int ) + l] = add( Cp_buf_e[( k * nY_int ) + l], a_e[k] );
    3186     4269440 :             move16();
    3187             :         }
    3188             :     }
    3189             : 
    3190      804960 :     FOR( k = 0; k < nY_int; k++ )
    3191             :     {
    3192      691840 :         Cyp_fx = Cy_state_int_fx + k;
    3193      691840 :         Cyp_e = Cy_state_int_e + k;
    3194      691840 :         ap_fx = a_fx[k];
    3195      691840 :         move32();
    3196      691840 :         ap_e = a_e[k];
    3197      691840 :         move16();
    3198             : 
    3199     4961280 :         FOR( l = 0; l < nY_int; l++ )
    3200             :         {
    3201     4269440 :             ( *Cyp_fx ) = Mpy_32_32( *Cyp_fx, ap_fx );
    3202     4269440 :             move32();
    3203     4269440 :             *Cyp_e = add( *Cyp_e, ap_e );
    3204     4269440 :             move16();
    3205             : 
    3206     4269440 :             Cyp_fx += nY_int;
    3207     4269440 :             Cyp_e += nY_int;
    3208             :         }
    3209             :     }
    3210             : 
    3211             :     /*normalizing the Cy_state_int_fx to a common exponent*/
    3212             : 
    3213             :     /* replace some estimated ICCs with transmitted values */
    3214      691840 :     FOR( k = 0; k < hParamMC->hMetadataPMC->icc_mapping_conf->icc_map_size_lfe; k++ )
    3215             :     {
    3216      578720 :         Cy_state_int_fx[hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][0] + ( nY_int * hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][1] )] = L_shr( L_deposit_h( icc_q_fx[k] ), tmp );
    3217      578720 :         move32();
    3218      578720 :         Cy_state_int_e[hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][0] + ( nY_int * hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][1] )] = tmp;
    3219      578720 :         move16();
    3220      578720 :         Cy_state_int_fx[hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][1] + ( nY_int * hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][0] )] = L_shr( L_deposit_h( icc_q_fx[k] ), tmp );
    3221      578720 :         move32();
    3222      578720 :         Cy_state_int_e[hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][1] + ( nY_int * hParamMC->hMetadataPMC->icc_mapping_conf->icc_mapping[k][0] )] = tmp;
    3223      578720 :         move16();
    3224             :     }
    3225             : 
    3226      113120 :     test();
    3227      113120 :     IF( GE_16( param_band_index, PARAM_MC_MAX_BAND_LFE ) || ( hParamMC->hMetadataPMC->lfe_on == 0 ) )
    3228             :     {
    3229      798372 :         FOR( k = 0; k < nY_int; k++ )
    3230             :         {
    3231      686056 :             Cy_state_int_fx[k + ( 3 * nY_int )] = ONE_IN_Q31;
    3232      686056 :             move32();
    3233      686056 :             Cy_state_int_e[k + ( 3 * nY_int )] = 0;
    3234      686056 :             move16();
    3235      686056 :             Cy_state_int_fx[3 + ( k * nY_int )] = ONE_IN_Q31;
    3236      686056 :             move32();
    3237      686056 :             Cy_state_int_e[3 + ( k * nY_int )] = 0;
    3238      686056 :             move16();
    3239             :         }
    3240      112316 :         Nrqq_fx[3] = 0;
    3241      112316 :         move32();
    3242             :     }
    3243             : 
    3244             :     /* Generate back Covariance Mtx */
    3245      804960 :     FOR( k = 0; k < nY_int; k++ )
    3246             :     {
    3247      691840 :         tmp_e = Nrqq_e[k];
    3248      691840 :         move16();
    3249      691840 :         a_fx[k] = Sqrt32( Nrqq_fx[k], &tmp_e );
    3250      691840 :         move32();
    3251      691840 :         a_e[k] = tmp_e;
    3252      691840 :         move16();
    3253             : 
    3254             :         /* v_multc( Cy_state_int_fx + k * nY_int, a_fx[k], Cy_state_int_fx + k * nY_int, nY_int ) */
    3255     4961280 :         FOR( l = 0; l < nY_int; l++ )
    3256             :         {
    3257     4269440 :             Cy_state_int_fx[( k * nY_int ) + l] = Mpy_32_32( Cy_state_int_fx[( k * nY_int ) + l], a_fx[k] );
    3258     4269440 :             move32();
    3259     4269440 :             Cy_state_int_e[( k * nY_int ) + l] = add( Cy_state_int_e[( k * nY_int ) + l], a_e[k] );
    3260     4269440 :             move16();
    3261             :         }
    3262             :     }
    3263             : 
    3264      804960 :     FOR( k = 0; k < nY_int; k++ )
    3265             :     {
    3266      691840 :         Cyp_fx = Cy_state_int_fx + k;
    3267      691840 :         Cyp_e = Cy_state_int_e + k;
    3268      691840 :         ap_fx = a_fx[k];
    3269      691840 :         move32();
    3270      691840 :         ap_e = a_e[k];
    3271      691840 :         move16();
    3272             : 
    3273     4961280 :         FOR( l = 0; l < nY_int; l++ )
    3274             :         {
    3275     4269440 :             ( *Cyp_fx ) = Mpy_32_32( *Cyp_fx, ap_fx );
    3276     4269440 :             move32();
    3277     4269440 :             ( *Cyp_e ) = add( *Cyp_e, ap_e );
    3278     4269440 :             move16();
    3279             : 
    3280     4269440 :             Cyp_fx += nY_int;
    3281     4269440 :             Cyp_e += nY_int;
    3282             :         }
    3283             :     }
    3284             : 
    3285      113120 :     IF( EQ_32( synth_conf, PARAM_MC_SYNTH_LS_CONV_COV ) )
    3286             :     {
    3287             :         /* Cy = dmx*Cy*dmx' */
    3288             :         Word32 mat_mult_buffer1_fx[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS]; // Q(31 - mat_mult_buffer1_e)
    3289             :         Word16 mat_mult_buffer1_e[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS];
    3290             :         Word32 target_ch_ener_fx[MAX_CICP_CHANNELS]; // Q(31 - target_ch_ener_e)
    3291             :         Word16 target_ch_ener_e[MAX_CICP_CHANNELS];
    3292             :         Word32 dmx_ch_ener_fx[MAX_CICP_CHANNELS];
    3293             : 
    3294             :         Word16 ls_conv_dmx_matrix_e[MAX_CICP_CHANNELS * MAX_CICP_CHANNELS];
    3295             : 
    3296        2100 :         set32_fx( target_ch_ener_fx, 0, MAX_CICP_CHANNELS );
    3297        2100 :         set16_fx( target_ch_ener_e, 0, MAX_CICP_CHANNELS );
    3298        2100 :         set32_fx( dmx_ch_ener_fx, 0, MAX_CICP_CHANNELS );
    3299        2100 :         set16_fx( ls_conv_dmx_matrix_e, 1, MAX_OUTPUT_CHANNELS * MAX_OUTPUT_CHANNELS );
    3300             : 
    3301        2100 :         matrix_product_mant_exp( hParamMC->ls_conv_dmx_matrix_fx, ls_conv_dmx_matrix_e, nY_cov, nY_int, 0,
    3302             :                                  Cy_state_int_fx, Cy_state_int_e, nY_int, nY_int, 0,
    3303             :                                  mat_mult_buffer1_fx, mat_mult_buffer1_e );
    3304             : 
    3305        2100 :         matrix_product_mant_exp( mat_mult_buffer1_fx, mat_mult_buffer1_e, nY_cov, nY_int, 0,
    3306        2100 :                                  hParamMC->ls_conv_dmx_matrix_fx, ls_conv_dmx_matrix_e, nY_cov, nY_int, 1,
    3307             :                                  Cy_state_fx, Cy_buf_e );
    3308             : 
    3309       14700 :         FOR( k = 0; k < nY_cov; k++ )
    3310             :         {
    3311      113400 :             FOR( l = 0; l < nY_int; l++ )
    3312             :             {
    3313      100800 :                 L_tmp = Mpy_32_32( hParamMC->ls_conv_dmx_matrix_fx[k + ( l * nY_cov )], Nrqq_fx[l] );
    3314      100800 :                 tmp_e = add( ls_conv_dmx_matrix_e[k + ( l + nY_cov )], Nrqq_e[l] );
    3315      100800 :                 L_tmp = BASOP_Util_Add_Mant32Exp( target_ch_ener_fx[k], target_ch_ener_e[k], L_tmp, tmp_e, &tmp_e );
    3316      100800 :                 target_ch_ener_fx[k] = L_tmp;
    3317      100800 :                 move32();
    3318      100800 :                 target_ch_ener_e[k] = tmp_e;
    3319      100800 :                 move16();
    3320             :             }
    3321             : 
    3322       12600 :             dmx_ch_ener_fx[k] = Cy_state_fx[k + ( nY_cov * k )];
    3323       12600 :             move32();
    3324             : 
    3325       12600 :             IF( dmx_ch_ener_fx[k] < 0 )
    3326             :             {
    3327           0 :                 Cy_state_fx[k + ( nY_cov * k )] = L_negate( Cy_state_fx[k + ( nY_cov * k )] );
    3328           0 :                 move32();
    3329           0 :                 dmx_ch_ener_fx[k] = L_negate( dmx_ch_ener_fx[k] );
    3330           0 :                 move32();
    3331             :             }
    3332             : 
    3333       12600 :             IF( extract_h( dmx_ch_ener_fx[k] ) == 0 )
    3334             :             {
    3335        1950 :                 target_ch_ener_fx[k] = 0;
    3336        1950 :                 move32();
    3337        1950 :                 target_ch_ener_e[k] = 0;
    3338        1950 :                 move16();
    3339             :             }
    3340             :             ELSE
    3341             :             {
    3342       10650 :                 BASOP_Util_Divide_MantExp( extract_h( target_ch_ener_fx[k] ), target_ch_ener_e[k], extract_h( dmx_ch_ener_fx[k] ), Cy_buf_e[k + ( nY_cov * k )], &tmp, &tmp_e );
    3343       10650 :                 tmp = Sqrt16( tmp, &tmp_e );
    3344       10650 :                 target_ch_ener_fx[k] = L_deposit_h( tmp );
    3345       10650 :                 move32();
    3346       10650 :                 target_ch_ener_e[k] = tmp_e;
    3347       10650 :                 move16();
    3348             :             }
    3349             : 
    3350       88200 :             FOR( l = 0; l < nY_cov; l++ )
    3351             :             {
    3352       75600 :                 Cy_state_fx[( k * nY_cov ) + l] = Mpy_32_32( target_ch_ener_fx[k], Cy_state_fx[( k * nY_cov ) + l] );
    3353       75600 :                 move32();
    3354       75600 :                 Cy_buf_e[( k * nY_cov ) + l] = add( target_ch_ener_e[k], Cy_buf_e[( k * nY_cov ) + l] );
    3355       75600 :                 move16();
    3356             :             }
    3357             : 
    3358       12600 :             Cyp_fx = Cy_state_fx + k;
    3359       12600 :             Cyp_e = Cy_buf_e + k;
    3360       12600 :             ap_fx = target_ch_ener_fx[k];
    3361       12600 :             move32();
    3362       12600 :             ap_e = target_ch_ener_e[k];
    3363       12600 :             move16();
    3364       88200 :             FOR( l = 0; l < nY_cov; l++ )
    3365             :             {
    3366       75600 :                 ( *Cyp_fx ) = Mpy_32_32( *Cyp_fx, ap_fx );
    3367       75600 :                 move32();
    3368       75600 :                 *Cyp_e = add( *Cyp_e, ap_e );
    3369       75600 :                 move16();
    3370             : 
    3371       75600 :                 Cyp_fx += nY_cov;
    3372       75600 :                 Cyp_e += nY_cov;
    3373             :             }
    3374             :         }
    3375             :     }
    3376             :     ELSE
    3377             :     {
    3378      111020 :         Copy32( Cy_state_int_fx, Cy_state_fx, imult1616( nY_int, nY_int ) );
    3379      111020 :         Copy( Cy_state_int_e, Cy_buf_e, imult1616( nY_int, nY_int ) );
    3380             :     }
    3381             : 
    3382             :     /*normalize output matrix to a common exponent*/
    3383      113120 :     tmp = 0;
    3384     4382560 :     FOR( k = 0; k < nY_int * nY_int; k++ )
    3385             :     {
    3386     4269440 :         Cy_state_fx[k] = BASOP_Util_Add_Mant32Exp( Cy_state_fx[k], Cy_buf_e[k], 0, 0, &Cy_buf_e[k] );
    3387     4269440 :         move32();
    3388     4269440 :         tmp = s_max( tmp, Cy_buf_e[k] );
    3389             :     }
    3390     4382560 :     FOR( k = 0; k < nY_int * nY_int; k++ )
    3391             :     {
    3392     4269440 :         L_tmp = L_shr( Cy_state_fx[k], sub( tmp, Cy_buf_e[k] ) );
    3393     4269440 :         Cy_state_fx[k] = L_tmp;
    3394     4269440 :         move32();
    3395             :     }
    3396      113120 :     *Cy_state_e = tmp;
    3397      113120 :     move16();
    3398             : 
    3399      113120 :     return;
    3400             : }
    3401             : 
    3402             : /*-------------------------------------------------------------------------*
    3403             :  * param_mc_set_num_synth_bands()
    3404             :  *
    3405             :  * set the number of frequency bands to be synthesized
    3406             :  *-------------------------------------------------------------------------*/
    3407             : 
    3408         365 : static void param_mc_set_num_synth_bands(
    3409             :     const Word32 output_Fs,      /* i  : output sampling frequency */
    3410             :     PARAM_MC_DEC_HANDLE hParamMC /* i/o: Parametric MC handle      */
    3411             : )
    3412             : {
    3413             :     UWord16 max_param_band_synth;
    3414             :     const Word16 *param_mc_bands_coded;
    3415             : 
    3416         365 :     SWITCH( hParamMC->hMetadataPMC->num_parameter_bands )
    3417             :     {
    3418           0 :         case 20:
    3419           0 :             param_mc_bands_coded = param_mc_bands_coded_20;
    3420           0 :             BREAK;
    3421         203 :         case 10:
    3422         203 :             param_mc_bands_coded = param_mc_bands_coded_10;
    3423         203 :             BREAK;
    3424         162 :         case 14:
    3425             :         default:
    3426         162 :             param_mc_bands_coded = param_mc_bands_coded_14;
    3427         162 :             BREAK;
    3428             :     }
    3429         365 :     move16();
    3430         365 :     SWITCH( output_Fs )
    3431             :     {
    3432           0 :         case 8000:
    3433           0 :             max_param_band_synth = (UWord16) param_mc_bands_coded[NB];
    3434           0 :             BREAK;
    3435          71 :         case 16000:
    3436          71 :             max_param_band_synth = (UWord16) param_mc_bands_coded[WB];
    3437          71 :             BREAK;
    3438           3 :         case 32000:
    3439           3 :             max_param_band_synth = (UWord16) param_mc_bands_coded[SWB];
    3440           3 :             BREAK;
    3441         291 :         case 48000:
    3442             :         default:
    3443         291 :             max_param_band_synth = (UWord16) param_mc_bands_coded[FB];
    3444         291 :             BREAK;
    3445             :     }
    3446         365 :     move16();
    3447         365 :     hParamMC->num_param_bands_synth = s_min( hParamMC->hMetadataPMC->nbands_coded, max_param_band_synth );
    3448         365 :     move16();
    3449             : 
    3450         365 :     return;
    3451             : }
    3452             : 
    3453             : 
    3454             : /*-------------------------------------------------------------------------*
    3455             :  * param_mc_get_diff_proto_info()
    3456             :  *
    3457             :  * calculated the diffuse prototype information
    3458             :  *-------------------------------------------------------------------------*/
    3459             : 
    3460             : 
    3461         239 : static ivas_error param_mc_get_diff_proto_info_fx(
    3462             :     const Word32 *proto_mtx,                     /* i  : protoype matrix for the synthesis                     */
    3463             :     const UWord16 nchan_transport,               /* i  : number of transport channels                          */
    3464             :     const UWord16 nchan_out_cov,                 /* i  : number if output channels of the covariance synthesis */
    3465             :     PARAM_MC_DIFF_PROTO_INFO *p_diff_proto_info, /* o  : generated diffuse prototype info                      */
    3466             :     Word16 Q_proto_mtx )
    3467             : {
    3468             :     Word32 proto_fac_fx[MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS];
    3469             :     UWord16 cur_out_ch;
    3470             :     UWord16 cur_diff_proto;
    3471             :     UWord16 cur_transport_ch;
    3472             :     UWord16 max_num_src_chan;
    3473             : 
    3474             :     /* Initializations */
    3475         239 :     max_num_src_chan = 0;
    3476         239 :     move16();
    3477             : 
    3478         239 :     set_zero_fx( proto_fac_fx, MAX_CICP_CHANNELS * PARAM_MC_MAX_TRANSPORT_CHANS );
    3479         239 :     IF( ( p_diff_proto_info->proto_index_diff = (Word16 *) malloc( nchan_out_cov * sizeof( Word16 ) ) ) == NULL )
    3480             :     {
    3481           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
    3482             :     }
    3483         239 :     set16_fx( p_diff_proto_info->proto_index_diff, 0, nchan_out_cov );
    3484             : 
    3485         239 :     IF( ( p_diff_proto_info->num_source_chan_diff = (Word16 *) malloc( nchan_out_cov * sizeof( Word16 ) ) ) == NULL )
    3486             :     {
    3487           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
    3488             :     }
    3489         239 :     set16_fx( p_diff_proto_info->num_source_chan_diff, 0, nchan_out_cov );
    3490             : 
    3491             :     /* we have at least one prototype, copy the first one */
    3492         239 :     p_diff_proto_info->num_protos_diff = 1;
    3493         239 :     move16();
    3494             : 
    3495         239 :     mvr2r_inc_fixed( proto_mtx, nchan_out_cov, proto_fac_fx, nchan_out_cov, nchan_transport );
    3496         239 :     p_diff_proto_info->proto_index_diff[0] = 0;
    3497         239 :     move16();
    3498             : 
    3499             :     /* search for distinct prototypes */
    3500        1496 :     FOR( cur_out_ch = 1; cur_out_ch < nchan_out_cov; cur_out_ch++ )
    3501             :     {
    3502        1257 :         UWord16 found = 0;
    3503        1257 :         move16();
    3504             : 
    3505        2728 :         FOR( cur_diff_proto = 0; cur_diff_proto < p_diff_proto_info->num_protos_diff; cur_diff_proto++ )
    3506             :         {
    3507        2248 :             Word32 diff_fx = 0;
    3508        2248 :             move32();
    3509        2248 :             Word32 *proto_fac_ptr_fx = proto_fac_fx + cur_diff_proto;
    3510        2248 :             const Word32 *proto_mtx_ptr = proto_mtx + cur_out_ch;
    3511        6888 :             FOR( cur_transport_ch = 0; cur_transport_ch < nchan_transport; cur_transport_ch++ )
    3512             :             {
    3513        4640 :                 diff_fx = L_add( diff_fx, L_abs( L_sub( *proto_fac_ptr_fx, *proto_mtx_ptr ) ) );
    3514        4640 :                 proto_fac_ptr_fx += nchan_out_cov;
    3515        4640 :                 proto_mtx_ptr += nchan_out_cov;
    3516             :             }
    3517             : 
    3518             :             /* we already have this prototype, save the index */
    3519        2248 :             IF( LT_64( W_mult0_32_32( diff_fx, 10 ), L_shl_sat( 1, Q_proto_mtx ) ) )
    3520             :             {
    3521         777 :                 found = 1;
    3522         777 :                 move16();
    3523         777 :                 p_diff_proto_info->proto_index_diff[cur_out_ch] = cur_diff_proto;
    3524         777 :                 move16();
    3525         777 :                 BREAK;
    3526             :             }
    3527             :         }
    3528             : 
    3529             :         /* new distinct prototype, add it */
    3530        1257 :         IF( found == 0 )
    3531             :         {
    3532         480 :             const Word32 *proto_mtx_ptr = proto_mtx + cur_out_ch;
    3533             :             Word16 cur_num_src_chan;
    3534             : 
    3535         480 :             cur_num_src_chan = 0;
    3536         480 :             move16();
    3537        1456 :             FOR( cur_transport_ch = 0; cur_transport_ch < nchan_transport; cur_transport_ch++ )
    3538             :             {
    3539         976 :                 if ( GT_32( *proto_mtx_ptr, 0 /*EPSILON*/ ) )
    3540             :                 {
    3541         711 :                     cur_num_src_chan = add( cur_num_src_chan, 1 );
    3542             :                 }
    3543         976 :                 proto_mtx_ptr += nchan_out_cov;
    3544             :             }
    3545             : 
    3546         480 :             mvr2r_inc_fixed( proto_mtx + cur_out_ch, nchan_out_cov, proto_fac_fx + p_diff_proto_info->num_protos_diff, nchan_out_cov, nchan_transport );
    3547             : 
    3548         480 :             p_diff_proto_info->proto_index_diff[cur_out_ch] = p_diff_proto_info->num_protos_diff;
    3549         480 :             move16();
    3550         480 :             p_diff_proto_info->num_protos_diff = add( p_diff_proto_info->num_protos_diff, 1 );
    3551         480 :             move16();
    3552         480 :             max_num_src_chan = s_max( max_num_src_chan, cur_num_src_chan );
    3553             :         }
    3554             :     }
    3555             : 
    3556             :     /* set up the prototype info struct */
    3557         239 :     IF( ( p_diff_proto_info->source_chan_idx = (Word16 **) malloc( p_diff_proto_info->num_protos_diff * sizeof( Word16 * ) ) ) == NULL )
    3558             :     {
    3559           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
    3560             :     }
    3561             : 
    3562         239 :     IF( ( p_diff_proto_info->proto_fac_fx = (Word32 **) malloc( p_diff_proto_info->num_protos_diff * sizeof( Word32 * ) ) ) == NULL )
    3563             :     {
    3564           0 :         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
    3565             :     }
    3566         958 :     FOR( cur_diff_proto = 0; cur_diff_proto < p_diff_proto_info->num_protos_diff; cur_diff_proto++ )
    3567             :     {
    3568             :         Word32 *proto_fac_ptr;
    3569             : 
    3570         719 :         IF( ( p_diff_proto_info->source_chan_idx[cur_diff_proto] = (Word16 *) malloc( max_num_src_chan * sizeof( Word16 ) ) ) == NULL )
    3571             :         {
    3572           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
    3573             :         }
    3574             : 
    3575         719 :         IF( ( p_diff_proto_info->proto_fac_fx[cur_diff_proto] = (Word32 *) malloc( max_num_src_chan * sizeof( Word32 ) ) ) == NULL )
    3576             :         {
    3577           0 :             return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for Parametric MC\n" ) );
    3578             :         }
    3579             : 
    3580         719 :         proto_fac_ptr = proto_fac_fx + cur_diff_proto;
    3581        2181 :         FOR( cur_transport_ch = 0; cur_transport_ch < nchan_transport; cur_transport_ch++ )
    3582             :         {
    3583        1462 :             IF( GT_32( *proto_fac_ptr, EPSILON_FX_SMALL ) )
    3584             :             {
    3585         950 :                 p_diff_proto_info->source_chan_idx[cur_diff_proto][p_diff_proto_info->num_source_chan_diff[cur_diff_proto]] = cur_transport_ch;
    3586         950 :                 move16();
    3587             : #ifdef FIX_1737_proto_fac_overflow
    3588         950 :                 p_diff_proto_info->proto_fac_fx[cur_diff_proto][p_diff_proto_info->num_source_chan_diff[cur_diff_proto]] = *proto_fac_ptr; // (proto_fac_fx)Q26 = Q26
    3589             : #else
    3590             :                 p_diff_proto_info->proto_fac_fx[cur_diff_proto][p_diff_proto_info->num_source_chan_diff[cur_diff_proto]] = L_shl( *proto_fac_ptr, 4 ); // (proto_fac_fx)Q26 + 4 = Q30
    3591             : #endif
    3592         950 :                 move16();
    3593         950 :                 p_diff_proto_info->num_source_chan_diff[cur_diff_proto] = add( p_diff_proto_info->num_source_chan_diff[cur_diff_proto], 1 );
    3594         950 :                 move16();
    3595             :             }
    3596        1462 :             proto_fac_ptr += nchan_out_cov;
    3597             :         }
    3598             :     }
    3599         239 :     return IVAS_ERR_OK;
    3600             : }
    3601             : 
    3602             : 
    3603             : /*-------------------------------------------------------------------------*
    3604             :  * ivas_param_mc_bs_decode_parameter_values()
    3605             :  *
    3606             :  * reads and decodes a sequence of Parametric MC parameters from the bitstream
    3607             :  *-------------------------------------------------------------------------*/
    3608             : 
    3609       17500 : static void ivas_param_mc_bs_decode_parameter_values_fx(
    3610             :     UWord16 bit_buffer[],                                   /* i  : bitstream buffer                                       */
    3611             :     Word16 *bit_pos,                                        /* i/o: current bitstream buffer position                      */
    3612             :     const Word16 max_bits,                                  /* i  : maximum available bits in the buffer                   */
    3613             :     Word16 *BER_detect,                                     /* i/o: bit error detection flag                               */
    3614             :     HANDLE_IVAS_PARAM_MC_METADATA hMetadataPMC,             /* i  : Parametric MC metadata information                     */
    3615             :     HANDLE_PARAM_MC_PARAMETER_CODING_INFO hParamCodingInfo, /* i  : Parametric MC parameter quantization and coding tables */
    3616             :     const Word16 map_size_wo_lfe,                           /* i  : number of parameters per band (w/o LFEs)               */
    3617             :     const Word16 map_size,                                  /* i  : number of parameters per band (total)                  */
    3618             :     const Word16 num_lfe_bands,                             /* i  : number of parameter bands with coded LFE               */
    3619             :     const Word16 band_step,                                 /* i  : parameter band step                                    */
    3620             :     const Word16 num_param_bands,                           /* i  : number of parameter bands to decode                    */
    3621             :     Word16 *value_buffer                                    /* o  : output buffer for decoded parameter values             hParamCodingInfo -> Q-quant*/
    3622             : )
    3623             : {
    3624             :     Word16 range_coding;
    3625             :     Word16 sz_seq;
    3626             :     Word16 delta_coding;
    3627             :     Word16 delta_idx[PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE];
    3628             :     Word16 idx[PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE];
    3629             :     Word16 idx_prev;
    3630             :     Word16 idx_offset;
    3631             :     Word16 sz_alphabet;
    3632             :     Word16 i, j, k;
    3633             :     Word16 dequant_seq_fx[PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE];
    3634             :     Word16 dequant_ordered_fx[PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE];
    3635             :     Word16 n_lfe_idx;
    3636             : 
    3637       17500 :     range_coding = bit_buffer[*bit_pos];
    3638       17500 :     move16();
    3639       17500 :     *bit_pos = add( *bit_pos, 1 );
    3640       17500 :     move16();
    3641             : 
    3642             :     /* Decoding the sequence */
    3643       17500 :     n_lfe_idx = sub( map_size, map_size_wo_lfe );
    3644       17500 :     sz_seq = add( imult1616( num_param_bands, map_size_wo_lfe ), imult1616( num_lfe_bands, n_lfe_idx ) );
    3645             : 
    3646       17500 :     set16_fx( idx, 0, PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE );
    3647       17500 :     set16_fx( dequant_ordered_fx, 0, PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE );
    3648       17500 :     set16_fx( dequant_seq_fx, 0, PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE );
    3649       17500 :     IF( range_coding )
    3650             :     {
    3651       17107 :         delta_coding = bit_buffer[*bit_pos];
    3652       17107 :         move16();
    3653       17107 :         *bit_pos = add( *bit_pos, 1 );
    3654       17107 :         move16();
    3655             : 
    3656       17107 :         IF( delta_coding )
    3657             :         {
    3658       16896 :             idx_prev = sub( add( shr( hParamCodingInfo->quantizer_size, 1 ), hParamCodingInfo->quantizer_size % 2 ), 1 );
    3659       16896 :             sz_alphabet = sub( shl( hParamCodingInfo->quantizer_size, 1 ), 1 );
    3660       16896 :             idx_offset = sub( hParamCodingInfo->quantizer_size, 1 );
    3661             : 
    3662             :             /* read range coded delta ICC indices */
    3663       16896 :             *bit_pos = add( *bit_pos, ivas_param_mc_range_decoder_LC_fx( &bit_buffer[*bit_pos], delta_idx, BER_detect, sz_seq, sz_alphabet,
    3664       16896 :                                                                          hParamCodingInfo->cum_freq_delta, hParamCodingInfo->sym_freq_delta, PARAM_MC_RANGE_CODER_TOT_SHIFT, sub( max_bits, *bit_pos ) ) );
    3665       16896 :             move16();
    3666             : 
    3667             :             /* delta index to absolute index  */
    3668      534457 :             FOR( j = 0; j < sz_seq; j++ )
    3669             :             {
    3670      517561 :                 idx[j] = add( idx_prev, sub( delta_idx[j], idx_offset ) );
    3671      517561 :                 idx_prev = idx[j];
    3672      517561 :                 move16();
    3673             :             }
    3674             :         }
    3675             :         ELSE
    3676             :         {
    3677             :             /* read range coded absolute ICC indices */
    3678         211 :             sz_alphabet = hParamCodingInfo->quantizer_size;
    3679         211 :             move16();
    3680         211 :             *bit_pos = add( *bit_pos, ivas_param_mc_range_decoder_LC_fx( &bit_buffer[*bit_pos], idx, BER_detect, sz_seq, sz_alphabet,
    3681         211 :                                                                          hParamCodingInfo->cum_freq, hParamCodingInfo->sym_freq, PARAM_MC_RANGE_CODER_TOT_SHIFT, sub( max_bits, *bit_pos ) ) );
    3682         211 :             move16();
    3683             :         }
    3684             : 
    3685             :         /* dequantize */
    3686      540205 :         FOR( j = 0; j < sz_seq; j++ )
    3687             :         {
    3688      523098 :             dequant_seq_fx[j] = hParamCodingInfo->quantizer_fx[idx[j]]; // hParamCodingInfo -> Q-quant
    3689      523098 :             move16();
    3690             :         }
    3691             :     }
    3692             :     ELSE
    3693             :     {
    3694         393 :         set16_fx( dequant_seq_fx, 0, PARAM_MC_MAX_PARAMETER_BANDS * PARAM_MC_MAX_VAL_MAP_SIZE );
    3695             :         /* read uniformly coded ICCs */
    3696         393 :         *bit_pos = add( *bit_pos, ivas_param_mc_uniform_decoder_fx( dequant_seq_fx, sz_seq, hParamCodingInfo->quantizer_fx, hParamCodingInfo->uni_bits, &bit_buffer[*bit_pos] ) );
    3697         393 :         move16();
    3698             :     }
    3699             : 
    3700             :     /* reorder from sequential to parameter-band-wise */
    3701       17500 :     k = 0;
    3702       98339 :     FOR( j = 0; j < map_size_wo_lfe; ++j )
    3703             :     {
    3704      613108 :         FOR( i = 0; i < num_param_bands; ++i )
    3705             :         {
    3706      532269 :             dequant_ordered_fx[j + ( i * map_size )] = dequant_seq_fx[k]; // hParamCodingInfo -> Q-quant
    3707      532269 :             move16();
    3708      532269 :             k = add( k, 1 );
    3709             :         }
    3710             :     }
    3711             : 
    3712       18404 :     FOR( i = 0; i < num_lfe_bands; i++ )
    3713             :     {
    3714        1845 :         FOR( j = 0; j < n_lfe_idx; j++ )
    3715             :         {
    3716         941 :             dequant_ordered_fx[map_size - n_lfe_idx + j + i * map_size] = dequant_seq_fx[k]; // hParamCodingInfo -> Q-quant
    3717         941 :             move16();
    3718         941 :             k = add( k, 1 );
    3719             :         }
    3720             :     }
    3721             : 
    3722       17500 :     IF( !( *BER_detect ) )
    3723             :     {
    3724       17500 :         j = 0;
    3725      242326 :         FOR( k = 0; k < hMetadataPMC->nbands_coded; k += band_step )
    3726             :         {
    3727      224826 :             test();
    3728      224826 :             IF( hMetadataPMC->bAttackPresent || EQ_16( hMetadataPMC->param_frame_idx, hMetadataPMC->coding_band_mapping[k] ) )
    3729             :             {
    3730      115068 :                 Copy( dequant_ordered_fx + imult1616( j, map_size ), value_buffer + imult1616( k, map_size ), map_size ); // hParamCodingInfo -> Q-quant
    3731      115068 :                 j++;
    3732             :             }
    3733      224826 :             IF( hMetadataPMC->bAttackPresent && k + 1 < hMetadataPMC->nbands_coded )
    3734             :             {
    3735        5166 :                 Copy( value_buffer + imult1616( k, map_size ), value_buffer + imult1616( add( k, 1 ), map_size ), map_size );
    3736             :             }
    3737             :         }
    3738             :     }
    3739             : 
    3740       17500 :     return;
    3741             : }

Generated by: LCOV version 1.14