Merge branch 'FhG/b_20230405_HO-DirAC' into 'main' (a6a33f5c) · Commits · IVAS Codec Public Collaboration / IVAS Codec

ci/smoke_test.sh

+1 −1

Original line number	Diff line number	Diff line
		@@ -63,7 +63,7 @@ if [ $BUILD -eq 1 ];then
		make clean

		# Replace free -> free_, malloc -> malloc_, calloc -> calloc_
		./scripts/prepare_mem_dryrun.py
		python3 ./scripts/prepare_mem_dryrun.py

		# Enable WMOPS and disable DEBUGGING
		sed -i.bak -e "s/\/\\s$#define\sWMOPS$\s\*\//\1/g" lib_com/options.h

lib_com/ivas_cnst.h

100644 → 100755

+27 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,10 @@ typedef enum
		#define BINAURAL_CHANNELS 2 /* number of channels for binaural output configuration */
		#define CPE_CHANNELS 2 /* number of CPE (stereo) channels */
		#define FOA_CHANNELS 4 /* number of FOA channels */
		#ifdef HODIRAC
		#define HOA2_CHANNELS 9
		#endif

		#define MAX_NUM_OBJECTS 4 /* max. number of audio objects */

		#define MAX_SCE MAX_NUM_OBJECTS /* max. number of SCEs */
		@@ -905,7 +909,11 @@ typedef enum
		* DirAC Constants
		----------------------------------------------------------------------------------/

		#ifdef HODIRAC
		#define DIRAC_MAX_ANA_CHANS 11 /* Maximum number of channels for DirAC analysis */
		#else
		#define DIRAC_MAX_ANA_CHANS FOA_CHANNELS /* Maximum number of channels for DirAC analysis */
		#endif

		#define DIRAC_NUM_DIMS 3 /* number of directions to estimate (X,Y,Z) */
		#define DIRAC_MAX_NBANDS 12 /* Maximum number of frequency bands for the DirAC Side Parameter decoding */
		@@ -919,6 +927,11 @@ typedef enum
		#define DIRAC_NO_FB_BANDS_MAX MDFT_FB_BANDS_240
		#define DELAY_DIRAC_ENC_CMP_NS_PARAM_ISM ( IVAS_ENC_DELAY_NS + IVAS_DEC_DELAY_NS ) /* == 12 ms */

		#ifdef HODIRAC
		#define DIRAC_HO_NUMSECTORS 2
		#define NUM_ANA_SECTORS 2
		#endif


		/* DirAC renderer setup */
		typedef enum
		@@ -977,7 +990,17 @@ typedef enum

		#define SPAR_CONFIG_BW FB

		#ifndef SPAR_TUNING
		#define IVAS_SPAR_MAX_CH (FOA_CHANNELS + 2 * ( IVAS_MAX_SBA_ORDER - 1 )) /* FOA + planar HOA */
		#else
		#define IVAS_SPAR_MAX_CH ((( IVAS_MAX_SBA_ORDER ) * ( IVAS_MAX_SBA_ORDER )) + 2) /* HOA2 + pHOA3*/
		#define IVAS_HBR_MAX_DECOR_CHS (2)
		#endif

		#ifdef HODIRAC
		#define IVAS_SPAR_MAX_FB_IN_CHAN 11
		#endif


		#define IVAS_SPAR_P_LOWERTRI ((IVAS_SPAR_MAX_CH - 1) * (IVAS_SPAR_MAX_CH - 2)) >> 1
		#define IVAS_SPAR_MAX_C_COEFF (IVAS_SPAR_MAX_CH - IVAS_SPAR_MAX_DMX_CHS) * ( IVAS_SPAR_MAX_DMX_CHS - 1)
		@@ -1186,7 +1209,11 @@ enum
		#define MASA_ANGLE_TOLERANCE 0.5f
		#define MASA_LIMIT_NO_BANDS_SUR_COH 8
		#define MINIMUM_BIT_BUDGET_NORMAL_META 100
		#ifdef HODIRAC
		#define DIFF_DFRATIO_2BIT_LIMIT_IDX_HODIRAC 4
		#endif
		#define DIFF_DFRATIO_2BIT_LIMIT_IDX 3

		#define DIFF_DFRATIO_1BIT_LIMIT_IDX 6
		#define DIFF_EC_HUFF_BAND_LIMIT 8
		#define DIFF_EC_HUFF_GR0_LIMIT 8

lib_com/ivas_dirac_com.c

+292 −8

Original line number	Diff line number	Diff line
		@@ -71,8 +71,10 @@ ivas_error ivas_dirac_config(
		int16_t spar_dirac_split_band;
		IVAS_FB_MIXER_HANDLE hFbMdft;
		SBA_MODE sba_mode;

		int16_t *dirac_to_spar_md_bands;


		error = IVAS_ERR_OK;

		if ( enc_dec == ENC )
		@@ -128,7 +130,14 @@ ivas_error ivas_dirac_config(
		if ( sba_mode == SBA_MODE_SPAR )
		{
		hConfig->nbands = IVAS_MAX_NUM_BANDS;

		spar_dirac_split_band = min( IVAS_MAX_NUM_BANDS, SPAR_DIRAC_SPLIT_START_BAND );
		#ifdef HODIRAC
		if ( sba_order > 1 && ivas_total_brate > IVAS_256k )
		{
		spar_dirac_split_band = 0;
		}
		#endif
		}
		else
		{
		@@ -164,6 +173,16 @@ ivas_error ivas_dirac_config(
		{
		hConfig->enc_param_start_band = spar_dirac_split_band;
		}
		#ifdef HODIRAC
		if ( sba_order > 1 && ivas_total_brate > IVAS_256k )
		{
		hConfig->dec_param_estim = FALSE;
		hConfig->enc_param_start_band = 0;

		set_c( (int8_t *) hQMetaData->twoDirBands, (int8_t) 1, hQMetaData->q_direction[0].cfg.nbands );
		hQMetaData->numTwoDirBands = (uint8_t) hQMetaData->q_direction[0].cfg.nbands;
		}
		#endif
		}
		else
		{
		@@ -176,7 +195,9 @@ ivas_error ivas_dirac_config(

		if ( sba_mode == SBA_MODE_SPAR )
		{
		ivas_dirac_config_bands( band_grouping, IVAS_MAX_NUM_BANDS, (int16_t) ( Fs * INV_CLDFB_BANDWIDTH + 0.5f ),
		ivas_dirac_config_bands( band_grouping,
		IVAS_MAX_NUM_BANDS,
		(int16_t) ( Fs * INV_CLDFB_BANDWIDTH + 0.5f ),
		dirac_to_spar_md_bands, hQMetaData->useLowerBandRes, hConfig->enc_param_start_band, hFbMdft );
		}
		else
		@@ -354,13 +375,45 @@ ivas_error ivas_dirac_sba_config(
		else
		{
		hQMetaData->useLowerBandRes = 0;
		#ifdef HODIRAC
		if ( !( sba_order > 1 && sba_total_brate > IVAS_256k ) )
		#endif
		{
		nbands_coded = nbands - 1; /* always combine the last two bands */
		}
		}

		if ( ( error = ivas_qmetadata_allocate_memory( hQMetaData, nbands_coded, 1, 0 ) ) != IVAS_ERR_OK )
		{
		int16_t no_dirs = 1;
		#ifdef HODIRAC
		if ( sba_order > 1 && sba_total_brate > IVAS_256k )
		{
		no_dirs = 2;
		}
		#endif

		if ( ( error = ivas_qmetadata_allocate_memory( hQMetaData, nbands_coded, no_dirs, 0 ) ) != IVAS_ERR_OK )
		{
		return error;
		}
		#ifdef HODIRAC_FIX_BR_SWITCHING_DTX
		if ( sba_order > 1 && sba_total_brate > IVAS_256k )
		{
		int16_t dir, j;
		for ( dir = 0; dir < hQMetaData->no_directions; dir++ )
		{
		for ( j = 0; j < nbands_coded; j++ )
		{
		for ( i = 0; i < MAX_PARAM_SPATIAL_SUBFRAMES; i++ )
		{
		hQMetaData->q_direction[dir].band_data[j].energy_ratio_index[i] = 0;
		hQMetaData->q_direction[dir].band_data[j].energy_ratio_index_mod[i] = 0;
		}
		}
		}
		}
		#endif
		}

		if ( sba_total_brate <= IVAS_13k2 )
		{
		@@ -452,11 +505,19 @@ ivas_error ivas_dirac_sba_config(
		}
		if ( sba_total_brate >= IVAS_96k )
		{
		if ( ( error = ivas_qmetadata_allocate_memory( hQMetaData, 6, 1, 0 ) ) != IVAS_ERR_OK )
		{
		int16_t no_dirs = 1;
		#ifdef HODIRAC
		if ( sba_order > 1 && sba_total_brate > IVAS_256k )
		{
		no_dirs = 2;
		}
		#endif
		if ( ( error = ivas_qmetadata_allocate_memory( hQMetaData, 6, no_dirs, 0 ) ) != IVAS_ERR_OK )
		{
		return error;
		}

		}
		nbands_wb = 4;
		}
		else
		@@ -484,8 +545,17 @@ ivas_error ivas_dirac_sba_config(
		for ( i = 0; i < hQMetaData->no_directions; i++ )
		{
		hQMetaData->q_direction[i].cfg.search_effort = 1;
		#ifdef HODIRAC
		if ( sba_order > 1 && sba_total_brate > IVAS_256k )
		{
		hQMetaData->q_direction[i].cfg.start_band = 0;
		}
		else
		#endif
		{
		hQMetaData->q_direction[i].cfg.start_band = nbands_wb;
		}
		}

		*element_mode = IVAS_CPE_MDCT;
		}
		@@ -787,6 +857,220 @@ void deindex_spherical_component(
		return;
		}

		#ifdef HODIRAC
		void calculate_hodirac_sector_parameters(
		float RealBuffer[DIRAC_MAX_ANA_CHANS][DIRAC_NO_FB_BANDS_MAX], /* i: signal vector (L+1)^2 x N_bins, real part */
		float ImagBuffer[DIRAC_MAX_ANA_CHANS][DIRAC_NO_FB_BANDS_MAX], /* i: signal vector, imaginary part*/
		const int16_t N_bins, /* i: number of bins */
		const float beta, /* i: forgetting factor for average filtering */
		const int16_t band_grouping, / i: indices of band groups */
		const int16_t N_bands, /* i: number of bands (groups) */
		const int16_t enc_param_start_band, /* i: first band to process */
		float azi, / o: array of sector azimuth angles, flat */
		float ele, / o: array of sector elevation angles, flat */
		float diff, / o: array of sector diffuseness values, flat*/
		float ene / o: array of sector energy values, flat*/
		)
		{
		int16_t i_sec, i_bin, i_band;

		float p_real, p_imag, normI, energy, tmp_diff;

		float sec_I_vec_x[NUM_ANA_SECTORS];
		float sec_I_vec_y[NUM_ANA_SECTORS];
		float sec_I_vec_z[NUM_ANA_SECTORS];

		static int16_t firstrun_sector_params = 1;

		static float sec_I_vec_smth_x[NUM_ANA_SECTORS][IVAS_MAX_NUM_BANDS];
		static float sec_I_vec_smth_y[NUM_ANA_SECTORS][IVAS_MAX_NUM_BANDS];
		static float sec_I_vec_smth_z[NUM_ANA_SECTORS][IVAS_MAX_NUM_BANDS];

		static float energy_smth[NUM_ANA_SECTORS][IVAS_MAX_NUM_BANDS];
		static float azi_prev[NUM_ANA_SECTORS * IVAS_MAX_NUM_BANDS];
		static float ele_prev[NUM_ANA_SECTORS * IVAS_MAX_NUM_BANDS];

		#ifdef DEBUGGING
		assert( N_bins <= DIRAC_NO_FB_BANDS_MAX );
		#endif

		for ( i_sec = 0; i_sec < NUM_ANA_SECTORS; i_sec++ )
		{

		float *p_sec_I_vec_x = &sec_I_vec_x[i_sec];
		float *p_sec_I_vec_y = &sec_I_vec_y[i_sec];
		float *p_sec_I_vec_z = &sec_I_vec_z[i_sec];

		const float *p_c_weights = c_weights;

		float *p_ImagBuffer_0 = ImagBuffer[0];
		float *p_ImagBuffer_1 = ImagBuffer[1];
		float *p_ImagBuffer_2 = ImagBuffer[2];
		float *p_ImagBuffer_3 = ImagBuffer[3];
		float *p_ImagBuffer_4 = ImagBuffer[4];
		float *p_ImagBuffer_5 = ImagBuffer[5];
		float *p_ImagBuffer_6 = ImagBuffer[6];
		float *p_ImagBuffer_8 = ImagBuffer[8];

		float *p_RealBuffer_0 = RealBuffer[0];
		float *p_RealBuffer_1 = RealBuffer[1];
		float *p_RealBuffer_2 = RealBuffer[2];
		float *p_RealBuffer_3 = RealBuffer[3];
		float *p_RealBuffer_4 = RealBuffer[4];
		float *p_RealBuffer_5 = RealBuffer[5];
		float *p_RealBuffer_6 = RealBuffer[6];
		float *p_RealBuffer_8 = RealBuffer[8];

		for ( i_band = enc_param_start_band; i_band < N_bands; i_band++ )
		{
		float p_azi = &azi[i_sec N_bands + i_band];
		float p_ele = &ele[i_sec N_bands + i_band];
		float p_ene = &ene[i_sec N_bands + i_band];

		float p_diff = &diff[i_sec N_bands + i_band];
		float p_azi_prev = &azi_prev[i_sec N_bands + i_band];
		float p_ele_prev = &ele_prev[i_sec N_bands + i_band];

		float *p_energy_smth = &energy_smth[i_sec][i_band];
		float *p_sec_I_vec_smth_x = &sec_I_vec_smth_x[i_sec][i_band];
		float *p_sec_I_vec_smth_y = &sec_I_vec_smth_y[i_sec][i_band];
		float *p_sec_I_vec_smth_z = &sec_I_vec_smth_z[i_sec][i_band];

		*p_sec_I_vec_x = 0.f;
		*p_sec_I_vec_y = 0.f;
		*p_sec_I_vec_z = 0.f;
		energy = 0.f;

		if ( i_sec == 0 )
		{
		for ( i_bin = band_grouping[i_band]; i_bin < band_grouping[i_band + 1]; i_bin++ )
		{
		float w = *( p_c_weights++ );
		float sec_w_imag, sec_x_imag, sec_y_imag, sec_z_imag;
		float sec_w_real, sec_x_real, sec_y_real, sec_z_real;

		sec_w_imag = 1.772454f * ( p_ImagBuffer_0 ) + 1.772454f *( p_ImagBuffer_1 );
		sec_x_imag = 1.772454f * ( p_ImagBuffer_3++ ) + 1.023326f *( p_ImagBuffer_4++ );
		sec_y_imag = 0.590818f * ( p_ImagBuffer_0++ ) + 1.772454f ( p_ImagBuffer_1++ ) - 0.590817f ( p_ImagBuffer_6++ ) - 1.023326f *( p_ImagBuffer_8++ );
		sec_z_imag = 1.772454f * ( p_ImagBuffer_2++ ) + 1.023326f *( p_ImagBuffer_5++ );

		sec_w_real = 1.772454f * ( p_RealBuffer_0 ) + 1.772454f *( p_RealBuffer_1 );
		sec_x_real = 1.772454f * ( p_RealBuffer_3++ ) + 1.023326f *( p_RealBuffer_4++ );
		sec_y_real = 0.590818f * ( p_RealBuffer_0++ ) + 1.772454f ( p_RealBuffer_1++ ) - 0.590817f ( p_RealBuffer_6++ ) - 1.023326f *( p_RealBuffer_8++ );
		sec_z_real = 1.772454f * ( p_RealBuffer_2++ ) + 1.023326f *( p_RealBuffer_5++ );

		p_real = sec_w_real * w;
		p_imag = sec_w_imag * w;

		p_sec_I_vec_x += p_real sec_x_real + p_imag * sec_x_imag;
		p_sec_I_vec_y += p_real sec_y_real + p_imag * sec_y_imag;
		p_sec_I_vec_z += p_real sec_z_real + p_imag * sec_z_imag;

		energy += 0.5f * ( p_real * p_real + p_imag * p_imag + sec_x_real * sec_x_real + sec_x_imag * sec_x_imag +
		sec_y_real * sec_y_real + sec_y_imag * sec_y_imag +
		sec_z_real * sec_z_real + sec_z_imag * sec_z_imag );
		}
		}
		else
		{
		for ( i_bin = band_grouping[i_band]; i_bin < band_grouping[i_band + 1]; i_bin++ )
		{
		float w = *( p_c_weights++ );
		float sec_w_imag, sec_x_imag, sec_y_imag, sec_z_imag;
		float sec_w_real, sec_x_real, sec_y_real, sec_z_real;

		sec_w_imag = 1.772454f * (p_ImagBuffer_0) -1.772454f *( p_ImagBuffer_1 );
		sec_x_imag = 1.772454f * ( p_ImagBuffer_3++ ) - 1.023326f *( p_ImagBuffer_4++ );
		sec_y_imag = -0.590818f * ( p_ImagBuffer_0++ ) + 1.772454f ( p_ImagBuffer_1++ ) + 0.590817f ( p_ImagBuffer_6++ ) + 1.023326f *( p_ImagBuffer_8++ );
		sec_z_imag = 1.772454f * ( p_ImagBuffer_2++ ) - 1.023326f *( p_ImagBuffer_5++ );

		sec_w_real = 1.772454f * (p_RealBuffer_0) -1.772454f *( p_RealBuffer_1 );
		sec_x_real = 1.772454f * ( p_RealBuffer_3++ ) - 1.023326f *( p_RealBuffer_4++ );
		sec_y_real = -0.590818f * ( p_RealBuffer_0++ ) + 1.772454f ( p_RealBuffer_1++ ) + 0.590817f ( p_RealBuffer_6++ ) + 1.023326f *( p_RealBuffer_8++ );
		sec_z_real = 1.772454f * ( p_RealBuffer_2++ ) - 1.023326f *( p_RealBuffer_5++ );

		p_real = sec_w_real * w;
		p_imag = sec_w_imag * w;

		p_sec_I_vec_x += p_real sec_x_real + p_imag * sec_x_imag;
		p_sec_I_vec_y += p_real sec_y_real + p_imag * sec_y_imag;
		p_sec_I_vec_z += p_real sec_z_real + p_imag * sec_z_imag;

		energy += 0.5f * ( p_real * p_real + p_imag * p_imag + sec_x_real * sec_x_real + sec_x_imag * sec_x_imag +
		sec_y_real * sec_y_real + sec_y_imag * sec_y_imag +
		sec_z_real * sec_z_real + sec_z_imag * sec_z_imag );
		}
		}

		if ( firstrun_sector_params )
		{
		p_sec_I_vec_smth_x = p_sec_I_vec_x;
		p_sec_I_vec_smth_y = p_sec_I_vec_y;
		p_sec_I_vec_smth_z = p_sec_I_vec_z;
		*p_energy_smth = energy;
		}
		else
		{
		float w = ( 1.0f - beta );
		p_sec_I_vec_smth_x = w p_sec_I_vec_x + beta *p_sec_I_vec_smth_x;
		p_sec_I_vec_smth_y = w p_sec_I_vec_y + beta *p_sec_I_vec_smth_y;
		p_sec_I_vec_smth_z = w p_sec_I_vec_z + beta *p_sec_I_vec_smth_z;
		p_energy_smth = w energy + beta * *p_energy_smth;
		}

		if ( energy < EPSILON )
		{
		*p_azi = 0.f;
		*p_ele = 0.f;
		*p_ene = 0.f;
		*p_diff = 1.f;
		}
		else
		{
		normI = sqrtf( p_sec_I_vec_smth_x *p_sec_I_vec_smth_x +
		p_sec_I_vec_smth_y *p_sec_I_vec_smth_y +
		p_sec_I_vec_smth_z *p_sec_I_vec_smth_z );
		p_azi = atan2f( p_sec_I_vec_smth_y, p_sec_I_vec_smth_x ) _180_OVER_PI;
		p_ele = asinf( p_sec_I_vec_smth_z / ( normI + EPSILON ) ) * _180_OVER_PI;
		p_ene = p_energy_smth;
		p_diff = 1.f - normI / ( p_energy_smth + EPSILON );
		}

		tmp_diff = *p_diff;

		if ( tmp_diff < 0.0f )
		{
		*p_diff = 0.f;
		}
		if ( tmp_diff > 0.5f )
		{
		if ( firstrun_sector_params )
		{
		*p_azi = 0.f;
		*p_ele = 0.f;
		}
		else
		{
		p_azi = 2.f ( 1.f - tmp_diff ) * p_azi + ( 2.f tmp_diff - 1.f ) * *p_azi_prev;
		p_ele = 2.f ( 1.f - tmp_diff ) * p_ele + ( 2.f tmp_diff - 1.f ) * *p_ele_prev;
		}
		}
		else
		{
		p_azi_prev = p_azi;
		p_ele_prev = p_ele;
		}
		#ifdef HODIRAC_CHECK_VALUE_RANGE
		assert( p_azi >= -180.f && p_azi <= 180.f );
		assert( p_ele >= -90.f && p_ele <= 90.f );
		#endif
		} // i_band
		} // i_sec

		firstrun_sector_params = 0;
		}
		#endif


		/-----------------------------------------------------------------------
		* Local functions

lib_com/ivas_fb_mixer.c

+65 −3

Original line number	Diff line number	Diff line
		@@ -106,6 +106,10 @@ ivas_error ivas_fb_set_cfg(
		const int16_t num_out_chans, /* i : number of FB output channels*/
		const int16_t active_w_mixing, /* i : active_w_mixing flag */
		const int32_t sampling_rate /* i : sampling rate */
		#ifdef HODIRAC
		,
		const int16_t nchan_fb_in /* i: number of dirac analysis channels */
		#endif
		)
		{
		IVAS_FB_CFG *pFb_cfg;
		@@ -117,6 +121,9 @@ ivas_error ivas_fb_set_cfg(

		pFb_cfg->num_in_chans = num_in_chans;
		pFb_cfg->num_out_chans = num_out_chans;
		#ifdef HODIRAC
		pFb_cfg->nchan_fb_in = nchan_fb_in;
		#endif

		pFb_cfg->pcm_offset = 0; /* note: in SPAR decoder, this parameter is overwritten later */
		pFb_cfg->active_w_mixing = active_w_mixing;
		@@ -219,7 +226,11 @@ ivas_error ivas_FB_mixer_open(
		}
		else if ( fb_cfg->active_w_mixing )
		{
		#ifdef HODIRAC
		num_chs_alloc = max( fb_cfg->num_in_chans, fb_cfg->nchan_fb_in );
		#else
		num_chs_alloc = fb_cfg->num_in_chans;
		#endif
		}
		else
		{
		@@ -259,7 +270,11 @@ ivas_error ivas_FB_mixer_open(
		}
		else
		{
		#ifdef HODIRAC
		num_chs_alloc = max( fb_cfg->num_in_chans, fb_cfg->nchan_fb_in );
		#else
		num_chs_alloc = fb_cfg->num_in_chans;
		#endif
		}

		for ( i = 0; i < num_chs_alloc; i++ )
		@@ -274,8 +289,11 @@ ivas_error ivas_FB_mixer_open(
		if ( ( fb_cfg->active_w_mixing != -1 ) && ( fb_cfg->num_out_chans > 0 ) )
		{
		float *pTemp_mem;

		#ifdef HODIRAC
		if ( ( pTemp_mem = (float ) malloc( sizeof( float ) fb_cfg->num_out_chans * max( fb_cfg->num_in_chans, fb_cfg->nchan_fb_in ) * IVAS_MAX_NUM_BANDS ) ) == NULL )
		#else
		if ( ( pTemp_mem = (float ) malloc( sizeof( float ) fb_cfg->num_out_chans * fb_cfg->num_in_chans * IVAS_MAX_NUM_BANDS ) ) == NULL )
		#endif
		{
		return IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for FB mixer" );
		}
		@@ -386,7 +404,11 @@ void ivas_FB_mixer_close(
		}
		else if ( fb_cfg->active_w_mixing )
		{
		#ifdef HODIRAC
		num_chs_alloc = max( fb_cfg->num_in_chans, fb_cfg->nchan_fb_in );
		#else
		num_chs_alloc = fb_cfg->num_in_chans;
		#endif
		}
		else
		{
		@@ -419,8 +441,14 @@ void ivas_FB_mixer_close(
		}
		else
		{
		#ifdef HODIRAC
		num_chs_alloc = max( fb_cfg->num_in_chans, fb_cfg->nchan_fb_in );
		#else
		num_chs_alloc = fb_cfg->num_in_chans;
		#endif
		}


		for ( i = 0; i < num_chs_alloc; i++ )
		{
		free( hFbMixer->ppFilterbank_prior_input[i] );
		@@ -498,6 +526,10 @@ void ivas_fb_mixer_pcm_ingest(
		float pcm_in[][L_FRAME48k], /* i : input audio channels */
		float *ppOut_pcm, / o : output audio channels */
		const int16_t frame_len /* i : frame length */
		#ifdef SPAR_TUNING
		,
		const int16_t HOA_md_ind[IVAS_SPAR_MAX_CH]
		#endif
		)
		{
		int16_t i;
		@@ -520,7 +552,15 @@ void ivas_fb_mixer_pcm_ingest(
		for ( i = 0; i < fb_cfg->num_in_chans; i++ )
		{
		mvr2r( &hFbMixer->ppFilterbank_prior_input[i][fb_cfg->prior_input_length - frame_len], ppOut_pcm[i], frame_len );
		#ifdef HODIRAC
		#ifdef SPAR_TUNING
		mvr2r( pcm_in[HOA_md_ind[i]], &ppOut_pcm[i][frame_len], frame_len );
		#else
		mvr2r( pcm_in[HOA_keep_ind_spar[i]], &ppOut_pcm[i][frame_len], frame_len );
		#endif
		#else
		mvr2r( pcm_in[i], &ppOut_pcm[i][frame_len], frame_len );
		#endif
		}

		for ( i = 0; i < num_chs_ingest; i++ )
		@@ -542,11 +582,21 @@ void ivas_fb_mixer_update_prior_input(
		IVAS_FB_MIXER_HANDLE hFbMixer, /* i/o: FB mixer handle */
		float pcm_in[], / i : input audio channels */
		const int16_t length /* i : length of time slot */
		#ifdef HODIRAC
		,
		const int16_t nchan_fb_in
		#endif
		)
		{
		int16_t i;

		for ( i = 0; i < hFbMixer->fb_cfg->num_in_chans; i++ )
		for ( i = 0; i <
		#ifdef HODIRAC
		nchan_fb_in;
		#else
		hFbMixer->fb_cfg->num_in_chans;
		#endif
		i++ )
		{
		mvr2r( &hFbMixer->ppFilterbank_prior_input[i][length], hFbMixer->ppFilterbank_prior_input[i], hFbMixer->fb_cfg->prior_input_length - length );
		mvr2r( pcm_in[i], &hFbMixer->ppFilterbank_prior_input[i][hFbMixer->fb_cfg->prior_input_length - length], length );
		@@ -569,6 +619,10 @@ void ivas_fb_mixer_get_windowed_fr(
		float frame_f_imag[], / o : imag freq domain values */
		const int16_t length, /* i : number of new samples in time slot */
		const int16_t mdft_len /* i : MDFT frame length */
		#ifdef HODIRAC
		,
		int16_t nchan_fb_in
		#endif
		)
		{
		int16_t ch_idx, j, offset, rev_offset;
		@@ -583,7 +637,14 @@ void ivas_fb_mixer_get_windowed_fr(
		rev_offset = (int16_t) ( 2 * mdft_len - hFbMixer->ana_window_offset );
		set_zero( fr_in_block, offset );

		for ( ch_idx = 0; ch_idx < hFbMixer->fb_cfg->num_in_chans; ch_idx++ )
		for ( ch_idx = 0; ch_idx <
		#ifdef HODIRAC
		nchan_fb_in
		#else
		hFbMixer->fb_cfg->num_in_chans
		#endif
		;
		ch_idx++ )
		{
		mvr2r( &hFbMixer->ppFilterbank_prior_input[ch_idx][offset + hFbMixer->fb_cfg->windowed_fr_offset], &fr_in_block[offset], n_old_samples - offset );
		mvr2r( pcm_in[ch_idx], &fr_in_block[n_old_samples], n_new_samples );
		@@ -708,6 +769,7 @@ void ivas_fb_mixer_process(
		{
		int16_t start_offset = pFb->fb_consts.pFilterbank_bins_start_offset[i];
		int16_t num_bins = pFb->fb_consts.pFilterbank_bins_per_band[i];

		float mixer_const = hFbMixer->prior_mixer[ch][j][i];

		pFilterbank_bin_to_band_re = pFb->fb_consts.ppFilterbank_FRs[0][i];

lib_com/ivas_prot.h

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