SPAR MD functions clean up, integration (bf90ce95) · Commits · SA4 / Audio / IVAS BASOP

lib_com/ivas_cnst.h

+4 −3

Original line number	Diff line number	Diff line
		@@ -1046,14 +1046,15 @@ typedef enum

		/* Common SPAR metadata constants */
		#define IVAS_ACTIVEW_DM_F_SCALE 0.5f
		#define IVAS_ACTIVEW_DM_F_SCALE_FX ONE_IN_Q30
		#define IVAS_ACTIVEW_DM_F_SCALE_FX IVAS_ACTIVEW_DM_F_SCALE * ONE_IN_Q31
		#define IVAS_ACTIVEW_DM_F_SCALE_DTX 0.25f
		#define IVAS_ACTIVEW_DM_F_SCALE_DTX_FX ONE_IN_Q29
		#define IVAS_ACTIVEW_DM_F_SCALE_DTX_FX IVAS_ACTIVEW_DM_F_SCALE_DTX * ONE_IN_Q31
		#define IVAS_ACTIVEW_DM_F_SCALE_VLBR 0.25f
		#define IVAS_ACTIVEW_DM_F_SCALE_VLBR_FX ONE_IN_Q29
		#define IVAS_ACTIVEW_DM_F_SCALE_VLBR_FX IVAS_ACTIVEW_DM_F_SCALE_VLBR * ONE_IN_Q31
		#define IVAS_SPAR_FOA_DFLT_FREQ_PER_CHAN 24000

		#define IVAS_SPAR_DYN_ACTIVEW_THRESH (0.0039f)
		#define IVAS_SPAR_DYN_ACTIVEW_THRESH_FX IVAS_SPAR_DYN_ACTIVEW_THRESH * ONE_IN_Q31
		#define IVAS_SPAR_SIDE_CH_DYN_ACTIVEW_THRESH (32.0f)

		#define MAX_QUANT_STRATS 3

lib_com/ivas_prot.h

+30 −6

Original line number	Diff line number	Diff line
		@@ -5466,6 +5466,23 @@ void ivas_create_fullr_dmx_mat(
		ivas_spar_md_com_cfg *hMdCfg
		);

		#ifdef IVAS_FLOAT_FIXED
		void ivas_create_fullr_dmx_mat_fx(
		Word32 pred_coeffs_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS],
		Word16 q_pred_coeffs_re,
		Word32 dm_fv_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS],
		Word16 q_dm_fv_re,
		Word32 ***mixer_mat,
		Word16 *q_mixer_mat,
		const Word16 in_chans,
		const Word16 start_band,
		const Word16 end_band,
		const Word16 active_w,
		ivas_spar_md_com_cfg *hMdCfg
		);
		#endif // IVAS_FLOAT_FIXED


		void ivas_calc_c_p_coeffs(
		ivas_spar_md_t *pSparMd,
		float *pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		@@ -5480,18 +5497,18 @@ void ivas_calc_c_p_coeffs(
		);
		#ifdef IVAS_FLOAT_FIXED
		void ivas_get_spar_md_from_dirac_fx(
		float azi_dirac[IVAS_MAX_NUM_BANDS][MAX_PARAM_SPATIAL_SUBFRAMES],
		float ele_dirac[IVAS_MAX_NUM_BANDS][MAX_PARAM_SPATIAL_SUBFRAMES],
		float diffuseness[IVAS_MAX_NUM_BANDS],
		Word32 azi_dirac[IVAS_MAX_NUM_BANDS][MAX_PARAM_SPATIAL_SUBFRAMES],
		Word32 ele_dirac[IVAS_MAX_NUM_BANDS][MAX_PARAM_SPATIAL_SUBFRAMES],
		Word32 diffuseness[IVAS_MAX_NUM_BANDS],
		const int16_t n_ts,
		float ***mixer_mat,
		Word32 ***mixer_mat,
		ivas_spar_md_t *hSpar_md,
		ivas_spar_md_com_cfg *hSpar_md_cfg,
		const int16_t start_band,
		const int16_t end_band,
		const int16_t order,
		const int16_t dtx_vad,
		float Wscale_d[IVAS_MAX_NUM_BANDS],
		Word32 Wscale_d[IVAS_MAX_NUM_BANDS],
		const uint8_t useLowerRes,
		const int16_t active_w_vlbr,
		const int16_t dyn_active_w_flag
		@@ -5595,7 +5612,14 @@ void ivas_spar_to_dirac(
		const int16_t bw, /* i : band joining factor */
		const int16_t dyn_active_w_flag /* i : dynamic active W flag */
		);

		void ivas_spar_to_dirac_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder handle */
		ivas_spar_md_dec_state_t hMdDec, / i/o: SPAR MD decoder handle */
		const int16_t dtx_vad, /* i : DTX frame flag */
		const int16_t num_bands_out, /* i : number of output bands */
		const int16_t bw, /* i : band joining factor */
		const int16_t dyn_active_w_flag /* i : dynamic active W flag */
		);
		void ivas_spar_update_md_hist(
		ivas_spar_md_dec_state_t hMdDec / i/o: SPAR MD decoder handle */
		);

lib_com/ivas_prot_fx.h

+54 −16

Original line number	Diff line number	Diff line
		@@ -687,22 +687,26 @@ Word16 masa_sq_fx(
		);

		void ivas_compute_spar_params_fx(
		Word32 * pppCov_mat_re[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		Word32 *cov_real[IVAS_SPAR_MAX_CH][IVAS_SPAR_MAX_CH],
		Word16 q_cov_real,
		Word32 dm_fv_re[IVAS_SPAR_MAX_CH - 1][IVAS_MAX_NUM_BANDS],
		const int16_t i_ts,
		float ***mixer_mat,
		const int16_t start_band,
		const int16_t end_band,
		const int16_t dtx_vad,
		const int16_t num_ch,
		const int16_t bands_bw,
		const int16_t active_w,
		const int16_t active_w_vlbr,
		Word16 *q_dm_fv_re,
		const Word16 i_ts,
		Word32 ***mixer_mat_fx,
		Word16 *q_mixer_mat,
		const Word16 start_band,
		const Word16 end_band,
		const Word16 dtx_vad,
		const Word16 num_ch,
		const Word16 bands_bw,
		const Word16 active_w,
		const Word16 active_w_vlbr,
		ivas_spar_md_com_cfg *hSparCfg,
		ivas_spar_md_t *hSparMd,
		float *pWscale,
		const int16_t from_dirac,
		const int16_t dyn_active_w_flag
		Word32 *pWscale_fx,
		Word16 *q_pWscale,
		const Word16 from_dirac,
		const Word16 dyn_active_w_flag
		);

		ivas_error ivas_ism_metadata_dec_fx(
		@@ -1416,6 +1420,14 @@ void ivas_sba_dirac_stereo_dec_fx(
		const Word16 mcmasa /* i : McMASA flag */
		);

		ivas_error ivas_osba_render_sf_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder handle */
		const UWord16 nSamplesAsked, /* i : number of CLDFB slots requested */
		UWord16 nSamplesRendered, / o : number of CLDFB slots rendered */
		UWord16 nSamplesAvailableNext, / o : number of CLDFB slots still to render */
		Word32 p_output[] / o : rendered time signal */
		);

		void ivas_hq_core_dec_fx(
		Decoder_State st_fx, / i/o: decoder state structure fx */
		Word16 synth[], /* o : output synthesis */
		@@ -1943,6 +1955,13 @@ ivas_error ivas_spar_dec_fx(
		Word16 nb_bits_read / o : number of MD bits read */
		);

		void ivas_spar_md_dec_process_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder handle */
		Decoder_State st0, / i/o: decoder state structure - for bitstream handling */
		const Word16 num_bands_out, /* i : number of output bands */
		const Word16 sba_order /* i : Ambisonic (SBA) order */
		);

		ivas_error TDREND_Update_object_positions_fx(
		BINAURAL_TD_OBJECT_RENDERER_HANDLE hBinRendererTd, /* i/o: TD Renderer handle */
		const Word16 num_src, /* i : number of sources to render */
		@@ -2114,4 +2133,23 @@ ivas_error ivas_ism_metadata_dec_create_fx(
		const Word16 n_ISms, /* i : number of objects */
		Word32 element_brate_tmp[] /* o : element bitrate per object */
		);
		ivas_error ivas_sba_dec_reconfigure_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder structure */
		uint16_t nSamplesFlushed, / o : number of samples flushed */
		int16_t data / o : output synthesis signal */
		);

		ivas_error ivas_spar_md_dec_matrix_open_fx(
		ivas_spar_md_dec_state_t hMdDec, / i/o: SPAR MD decoder handle */
		const int16_t num_channels, /* i : number of internal channels */
		const int16_t num_md_sub_frames /* i : number of MD subframes */
		);
		void ivas_spar_md_dec_matrix_close_fx(
		ivas_spar_md_dec_state_t hMdDecoder, / i/o: SPAR MD decoder handle */
		const int16_t num_channels /* i : number of internal channels */
		);
		ivas_error ivas_spar_dec_open_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder handle */
		const int16_t spar_reconfig_flag /* i : SPAR reconfiguration flag */
		);
		#endif

lib_com/ivas_spar_com.c

+1202 −137

File changed.

Preview size limit exceeded, changes collapsed.

lib_com/ivas_spar_com_quant_util.c

+69 −91

Original line number	Diff line number	Diff line
		@@ -41,6 +41,8 @@
		#include <assert.h>
		#include "wmc_auto.h"
		#include "prot_fx1.h"


		/-----------------------------------------------------------------------------------------
		* Function ivas_quantise_real_values()
		*
		@@ -133,6 +135,7 @@ void ivas_quantise_real_values_fx(
		}


		#ifndef IVAS_FLOAT_FIXED
		/-----------------------------------------------------------------------------------------
		* Function ivas_spar_get_uniform_quant_strat()
		*
		@@ -160,67 +163,59 @@ void ivas_spar_get_uniform_quant_strat(
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[0] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[1] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.min = -1.2f;
		pSpar_md_com_cfg->quant_strat[i].PR.min_fx = -644245094/2;
		pSpar_md_com_cfg->quant_strat[i].PR.max = 1.2f;
		pSpar_md_com_cfg->quant_strat[i].PR.max_fx = 644245094/2;


		pSpar_md_com_cfg->quant_strat[i].C.q_levels[0] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.q_levels[1] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.min = -0.8f;
		pSpar_md_com_cfg->quant_strat[i].C.min_fx = -429496729/2;
		pSpar_md_com_cfg->quant_strat[i].C.max = 0.8f;
		pSpar_md_com_cfg->quant_strat[i].C.max_fx = 429496729/2;


		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[0] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[1] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.min = 0;
		pSpar_md_com_cfg->quant_strat[i].P_r.min_fx = 0;
		pSpar_md_com_cfg->quant_strat[i].P_r.max = 0.8f;
		pSpar_md_com_cfg->quant_strat[i].P_r.max_fx = 429496729/2;


		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[0] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[1] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.min = -0.8f;
		pSpar_md_com_cfg->quant_strat[i].P_c.min_fx = -429496729/2;
		pSpar_md_com_cfg->quant_strat[i].P_c.max = 0.8f;
		pSpar_md_com_cfg->quant_strat[i].P_c.max_fx = 429496729/2;

		}
		else
		{
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[0] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[1] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.max = 1;
		pSpar_md_com_cfg->quant_strat[i].PR.max_fx = 536870912/2;
		pSpar_md_com_cfg->quant_strat[i].PR.min = -1;
		pSpar_md_com_cfg->quant_strat[i].PR.min_fx = -536870912/2;


		pSpar_md_com_cfg->quant_strat[i].C.q_levels[0] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.q_levels[1] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.max = 2;
		pSpar_md_com_cfg->quant_strat[i].C.max_fx = 1073741824/2;
		pSpar_md_com_cfg->quant_strat[i].C.min = -2;
		pSpar_md_com_cfg->quant_strat[i].C.min_fx = -1073741824/2;


		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[0] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[1] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.max = 1.0f;
		pSpar_md_com_cfg->quant_strat[i].P_r.max_fx = 536870912/2;
		pSpar_md_com_cfg->quant_strat[i].P_r.min = 0;
		pSpar_md_com_cfg->quant_strat[i].P_r.min_fx = 0;


		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[0] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[1] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.max = 0.5;
		pSpar_md_com_cfg->quant_strat[i].P_c.max_fx = 268435456/2;
		pSpar_md_com_cfg->quant_strat[i].P_c.min = -0.5;
		pSpar_md_com_cfg->quant_strat[i].P_c.min_fx = -268435456/2;

		}
		}

		return;
		}
		#if 0
		void ivas_spar_get_uniform_quant_strat_fx(
		#else
		void ivas_spar_get_uniform_quant_strat(
		ivas_spar_md_com_cfg *pSpar_md_com_cfg,
		const Word16 table_idx)
		{
		@@ -230,56 +225,56 @@ void ivas_spar_get_uniform_quant_strat_fx(

		pSpar_md_com_cfg->num_quant_strats = MAX_QUANT_STRATS;

		FOR (i = 0; i < pSpar_md_com_cfg->num_quant_strats; i++)
		for ( i = 0; i < pSpar_md_com_cfg->num_quant_strats; i++ )
		{
		PQ_q_lvl = ivas_spar_br_table_consts[table_idx].q_lvls[i][0];
		C_q_lvl = ivas_spar_br_table_consts[table_idx].q_lvls[i][1];
		Pr_q_lvl = ivas_spar_br_table_consts[table_idx].q_lvls[i][2];
		Pc_q_lvl = ivas_spar_br_table_consts[table_idx].q_lvls[i][3];

		IF (active_w)
		if ( active_w )
		{
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[0] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[1] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.min_fx = -1288490188;//Q30
		pSpar_md_com_cfg->quant_strat[i].PR.max_fx = 1288490188;//Q30
		pSpar_md_com_cfg->quant_strat[i].PR.min_fx = -322122547;//1.2*Q28
		pSpar_md_com_cfg->quant_strat[i].PR.max_fx = 322122547;//1.2*Q28

		pSpar_md_com_cfg->quant_strat[i].C.q_levels[0] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.q_levels[1] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.min_fx = -858993459;//Q30
		pSpar_md_com_cfg->quant_strat[i].C.max_fx = 858993459;//Q30
		pSpar_md_com_cfg->quant_strat[i].C.min_fx = -214748364;
		pSpar_md_com_cfg->quant_strat[i].C.max_fx = 214748364;//.8*Q28

		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[0] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[1] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.min_fx = 0;
		pSpar_md_com_cfg->quant_strat[i].P_r.max_fx = 858993459;//Q30
		pSpar_md_com_cfg->quant_strat[i].P_r.max_fx = 214748364;//.8*Q28

		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[0] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[1] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.min_fx = -858993459;//Q30
		pSpar_md_com_cfg->quant_strat[i].P_c.max_fx = 858993459;//Q30
		pSpar_md_com_cfg->quant_strat[i].P_c.min_fx = -214748364;//.8*Q28
		pSpar_md_com_cfg->quant_strat[i].P_c.max_fx = 214748364; //.8*Q28
		}
		ELSE
		else
		{
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[0] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.q_levels[1] = PQ_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].PR.max_fx = ONE_IN_Q30;//Q30
		pSpar_md_com_cfg->quant_strat[i].PR.min_fx = -ONE_IN_Q30;//Q30
		pSpar_md_com_cfg->quant_strat[i].PR.max_fx = ONE_IN_Q28;
		pSpar_md_com_cfg->quant_strat[i].PR.min_fx = -ONE_IN_Q28;

		pSpar_md_com_cfg->quant_strat[i].C.q_levels[0] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.q_levels[1] = C_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].C.max_fx = 2147483648;//Q30
		pSpar_md_com_cfg->quant_strat[i].C.min_fx = -2147483648;//Q30
		pSpar_md_com_cfg->quant_strat[i].C.max_fx = 2 *ONE_IN_Q28;
		pSpar_md_com_cfg->quant_strat[i].C.min_fx = -2*ONE_IN_Q28;

		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[0] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.q_levels[1] = Pr_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_r.max_fx = ONE_IN_Q30;//Q30
		pSpar_md_com_cfg->quant_strat[i].P_r.max_fx = ONE_IN_Q28;
		pSpar_md_com_cfg->quant_strat[i].P_r.min_fx = 0;

		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[0] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.q_levels[1] = Pc_q_lvl;
		pSpar_md_com_cfg->quant_strat[i].P_c.max_fx = 536870912;//Q30
		pSpar_md_com_cfg->quant_strat[i].P_c.min_fx = -536870912;//Q30
		pSpar_md_com_cfg->quant_strat[i].P_c.max_fx = ONE_IN_Q27; //.5* Q28
		pSpar_md_com_cfg->quant_strat[i].P_c.min_fx = -ONE_IN_Q27;//.5* Q28
		}
		}

		@@ -402,22 +397,11 @@ void ivas_map_prior_coeffs_quant(
		}
		#endif

		void ivas_spar_quant_dtx_init_fx(
		ivas_spar_md_t *spar_md,
		Word32 *min_max)
		{
		spar_md->min_max_fx[0] = min_max[0];
		spar_md->min_max_fx[1] = min_max[1];

		return;
		}

		/-----------------------------------------------------------------------------------------
		* Function ivas_spar_quant_dtx_init()
		*
		* Init SPAR MD with minmax vals
		-----------------------------------------------------------------------------------------/

		void ivas_spar_quant_dtx_init(
		ivas_spar_md_t *spar_md,
		float *min_max )
		@@ -427,7 +411,7 @@ void ivas_spar_quant_dtx_init(

		return;
		}
		#if 0

		void ivas_spar_quant_dtx_init_fx(
		ivas_spar_md_t *spar_md,
		Word32 *min_max)
		@@ -437,7 +421,7 @@ void ivas_spar_quant_dtx_init_fx(

		return;
		}
		#endif

		/-----------------------------------------------------------------------------------------
		* Function ivas_copy_band_coeffs_idx_to_arr()
		*
		@@ -496,7 +480,6 @@ void ivas_copy_band_coeffs_idx_to_arr(
		*
		* clear band coeffs array in SPAR MD
		-----------------------------------------------------------------------------------------/

		void ivas_clear_band_coeffs(
		ivas_band_coeffs_t *pband_coeffs,
		const uint16_t num_bands )
		@@ -506,22 +489,17 @@ void ivas_clear_band_coeffs(
		for ( i = 0; i < num_bands; i++ )
		{
		set_zero( (float ) pband_coeffs[i].C_re, ( IVAS_SPAR_MAX_CH - IVAS_SPAR_MAX_DMX_CHS ) ( IVAS_SPAR_MAX_DMX_CHS - 1 ) );
		set32_fx( (Word32 ) pband_coeffs[i].C_re_fx, 0, ( IVAS_SPAR_MAX_CH - IVAS_SPAR_MAX_DMX_CHS ) ( IVAS_SPAR_MAX_DMX_CHS - 1 ) );
		set_zero( (float *) pband_coeffs[i].P_re, ( IVAS_SPAR_MAX_CH - 1 ) );
		set32_fx( (Word32 *) pband_coeffs[i].P_re_fx, 0, ( IVAS_SPAR_MAX_CH - 1 ) );
		set_zero( (float ) pband_coeffs[i].C_quant_re, ( IVAS_SPAR_MAX_CH - IVAS_SPAR_MAX_DMX_CHS ) ( IVAS_SPAR_MAX_DMX_CHS - 1 ) );
		set32_fx( (Word32 ) pband_coeffs[i].C_quant_re_fx, 0, ( IVAS_SPAR_MAX_CH - IVAS_SPAR_MAX_DMX_CHS ) ( IVAS_SPAR_MAX_DMX_CHS - 1 ) );
		set_zero( (float *) pband_coeffs[i].P_quant_re, ( IVAS_SPAR_MAX_CH - 1 ) );
		set32_fx( (Word32 *) pband_coeffs[i].P_quant_re_fx, 0, ( IVAS_SPAR_MAX_CH - 1 ) );
		set_zero( pband_coeffs[i].pred_re, ( IVAS_SPAR_MAX_CH - 1 ) );
		set32_fx( pband_coeffs[i].pred_re_fx, 0, ( IVAS_SPAR_MAX_CH - 1 ) );
		set_zero( pband_coeffs[i].pred_quant_re, ( IVAS_SPAR_MAX_CH - 1 ) );
		set32_fx( pband_coeffs[i].pred_quant_re_fx, 0, ( IVAS_SPAR_MAX_CH - 1 ) );

		}

		return;
		}
		#if 0

		void ivas_clear_band_coeffs_fx(
		ivas_band_coeffs_t *pband_coeffs,
		const UWord16 num_bands)
		@@ -540,7 +518,7 @@ void ivas_clear_band_coeffs_fx(

		return;
		}
		#endif

		/-----------------------------------------------------------------------------------------
		* Function ivas_clear_band_coeff_idx()
		*