complexity reductions (d9b2947a) · Commits · SA4 / Audio / IVAS BASOP

lib_dec/ivas_ism_param_dec.c

+31 −34

Original line number	Diff line number	Diff line
		@@ -176,8 +176,6 @@ static void ivas_param_ism_collect_slot_fx(
		Word32 Cldfb_ImagBuffer_in_fx, /Q(31-exp_imag)*/
		Word16 exp_imag,
		const Word16 ch,
		Word32 ref_power_fx[], /Q(31-exp_ref_power)/
		Word16 exp_ref_power[],
		Word32 cx_diag_fx[][PARAM_ISM_MAX_DMX], /Q(31-exp_cx_diag)/
		Word16 exp_cx_diag[][PARAM_ISM_MAX_DMX] )
		{
		@@ -205,17 +203,13 @@ static void ivas_param_ism_collect_slot_fx(
		tmp_fx = BASOP_Util_Add_Mant32Exp( tmp_fx, exp_tmp, var1, add( exp_real, exp_real ), &exp_tmp );
		tmp_fx = BASOP_Util_Add_Mant32Exp( tmp_fx, exp_tmp, var2, add( exp_imag, exp_imag ), &exp_tmp );

		Word16 exp_cx_diag_new = 0, exp_ref_power_new = 0;
		Word16 exp_cx_diag_new;
		move16();
		move16();
		cx_diag_fx[bin_idx][ch] = BASOP_Util_Add_Mant32Exp( cx_diag_fx[bin_idx][ch], exp_cx_diag[bin_idx][ch], tmp_fx, exp_tmp, &exp_cx_diag_new );
		move32();
		ref_power_fx[bin_idx] = BASOP_Util_Add_Mant32Exp( ref_power_fx[bin_idx], exp_ref_power[bin_idx], tmp_fx, exp_tmp, &exp_ref_power_new );
		move32();
		exp_cx_diag[bin_idx][ch] = exp_cx_diag_new;
		move16();
		exp_ref_power[bin_idx] = exp_ref_power_new;
		move16();
		}
		}
		return;
		@@ -230,8 +224,6 @@ static void ivas_param_ism_compute_mixing_matrix_fx(
		const Word16 nchan_out_woLFE,
		Word32 cx_diag_fx[][PARAM_ISM_MAX_DMX], /Q(31-cx_diag_e)/
		Word16 cx_diag_e[][PARAM_ISM_MAX_DMX],
		Word32 ref_power_fx[], /Q(31-ref_power_e)/
		Word16 ref_power_e[],
		Word32 mixing_matrix_fx[CLDFB_NO_CHANNELS_MAX][PARAM_ISM_MAX_CHAN * PARAM_ISM_MAX_DMX], /Q(31-mixing_matrix_e)/
		Word16 mixing_matrix_e[CLDFB_NO_CHANNELS_MAX] )
		{
		@@ -304,6 +296,27 @@ static void ivas_param_ism_compute_mixing_matrix_fx(

		set32_fx( cy_diag_fx, 0, nchan_out_woLFE );
		set16_fx( cy_diag_e_arr, 0, nchan_out_woLFE );

		/* equal cx diag exponents, compute ref power from cx_diag*/
		Word16 max_exp_cx_diag;
		Word32 cx_diag_eq_exp_fx[PARAM_ISM_MAX_DMX];
		Word32 ref_power_fx;
		Word16 ref_power_e, ref_power_e_new;
		ref_power_fx = cx_diag_fx[bin_idx][0];
		ref_power_e = cx_diag_e[bin_idx][0];

		FOR( i = 1; i < PARAM_ISM_MAX_DMX; i++ )
		{
		ref_power_fx = BASOP_Util_Add_Mant32Exp( ref_power_fx, ref_power_e, cx_diag_fx[bin_idx][i], cx_diag_e[bin_idx][i], &ref_power_e_new );
		ref_power_e = ref_power_e_new;
		}
		max_exp_cx_diag = ref_power_e;
		FOR( i = 0; i < PARAM_ISM_MAX_DMX; i++ )
		{
		cx_diag_eq_exp_fx[i] = L_shr_r( cx_diag_fx[bin_idx][i], sub( max_exp_cx_diag, cx_diag_e[bin_idx][i] ) ); // Q(31-max_exp_cx_diag)
		}


		FOR( w = 0; w < num_wave; w++ )
		{
		test();
		@@ -313,25 +326,26 @@ static void ivas_param_ism_compute_mixing_matrix_fx(
		SWITCH( nchan_ism )
		{
		case 2:
		direct_power_fx[w] = L_shr_r( ref_power_fx[bin_idx], 1 );
		direct_power_fx[w] = L_shr_r( ref_power_fx, 1 );
		move32();
		BREAK;
		case 3:
		direct_power_fx[w] = Mpy_32_16_1( ref_power_fx[bin_idx], 10923 ); // 10923 = 1/3f in Q15
		direct_power_fx[w] = Mpy_32_16_1( ref_power_fx, 10923 ); // 10923 = 1/3f in Q15
		move32();
		BREAK;
		case 4:
		direct_power_fx[w] = L_shr_r( ref_power_fx[bin_idx], 2 );
		direct_power_fx[w] = L_shr_r( ref_power_fx, 2 );
		move32();
		BREAK;
		}
		}
		ELSE
		{
		direct_power_fx[w] = Mpy_32_16_1( ref_power_fx[bin_idx], hParamIsmDec->power_ratios_fx[band_idx][0][w] ); // Q(31-ref_power_e[bin_idx])
		direct_power_fx[w] = Mpy_32_16_1( ref_power_fx, hParamIsmDec->power_ratios_fx[band_idx][0][w] ); // Q(31-ref_power_e[bin_idx])
		move32();
		}
		direct_power_e = ref_power_e[bin_idx];
		//direct_power_e = ref_power_e[bin_idx];
		direct_power_e = ref_power_e;
		move16();
		IF( direct_power_fx[w] != 0 )
		{
		@@ -370,18 +384,6 @@ static void ivas_param_ism_compute_mixing_matrix_fx(
		move32();
		}

		/* equal cx diag exponents */
		Word16 max_exp_cx_diag = cx_diag_e[bin_idx][0];
		Word32 cx_diag_eq_exp_fx[PARAM_ISM_MAX_DMX];
		FOR( i = 1; i < PARAM_ISM_MAX_DMX; i++ )
		{
		max_exp_cx_diag = s_max( max_exp_cx_diag, cx_diag_e[bin_idx][i] );
		}
		FOR( i = 0; i < PARAM_ISM_MAX_DMX; i++ )
		{
		cx_diag_eq_exp_fx[i] = L_shr_r( cx_diag_fx[bin_idx][i], sub( max_exp_cx_diag, cx_diag_e[bin_idx][i] ) ); // Q(31-max_exp_cx_diag)
		}

		/* Compute mixing matrix */
		computeMixingMatricesISM_fx( nchan_transport, num_wave, nchan_out_woLFE, response_matrix_fx, response_matrix_e, direct_power_fx, direct_power_e, cx_diag_eq_exp_fx, max_exp_cx_diag, cy_diag_fx, cy_diag_e, proto_matrix_fx, 1,
		PARAM_MC_REG_SX_FX, PARAM_MC_REG_GHAT_FX, mixing_matrix_fx[bin_idx], &mixing_matrix_e[bin_idx] );
		@@ -1048,9 +1050,7 @@ void ivas_param_ism_dec_digest_tc_fx(
		move16();
		move16();
		move16();
		Word32 ref_power_fx[CLDFB_NO_CHANNELS_MAX];
		Word32 cx_diag_fx[CLDFB_NO_CHANNELS_MAX][PARAM_ISM_MAX_DMX];
		Word16 exp_ref_power[CLDFB_NO_CHANNELS_MAX];
		Word16 exp_cx_diag[CLDFB_NO_CHANNELS_MAX][PARAM_ISM_MAX_DMX];

		Word16 q_tc = q_tc_in;
		@@ -1110,9 +1110,6 @@ void ivas_param_ism_dec_digest_tc_fx(
		set_zero_fx(&cx_diag_fx[0][0], CLDFB_NO_CHANNELS_MAX * PARAM_ISM_MAX_DMX);
		set16_zero_fx(&exp_cx_diag[0][0], CLDFB_NO_CHANNELS_MAX * PARAM_ISM_MAX_DMX);

		set_zero_fx( ref_power_fx, CLDFB_NO_CHANNELS_MAX );
		set16_zero_fx(&exp_ref_power[0], CLDFB_NO_CHANNELS_MAX);

		/* Frame-level Processing */
		/* De-quantization */
		test();
		@@ -1240,7 +1237,7 @@ void ivas_param_ism_dec_digest_tc_fx(
		&hParamIsmDec->hParamIsmRendering->Cldfb_ImagBuffer_tc_fx[current_idx],
		exp_imag_tmp,
		ch,
		ref_power_fx, exp_ref_power, cx_diag_fx, exp_cx_diag );
		cx_diag_fx, exp_cx_diag );

		exp_real_tmp = add( exp_real_tmp, scale_factor_real );
		exp_imag_tmp = add( exp_imag_tmp, scale_factor_imag );
		@@ -1255,7 +1252,7 @@ void ivas_param_ism_dec_digest_tc_fx(
		}

		/* Compute mixing matrix */
		ivas_param_ism_compute_mixing_matrix_fx( st_ivas->nchan_ism, hParamIsmDec, st_ivas->hISMDTX, direct_response_fx, nchan_transport, nchan_out_woLFE, cx_diag_fx, exp_cx_diag, ref_power_fx, exp_ref_power,
		ivas_param_ism_compute_mixing_matrix_fx( st_ivas->nchan_ism, hParamIsmDec, st_ivas->hISMDTX, direct_response_fx, nchan_transport, nchan_out_woLFE, cx_diag_fx, exp_cx_diag,
		hParamIsmDec->hParamIsmRendering->mixing_matrix_lin_fx, hParamIsmDec->hParamIsmRendering->exp_mixing_matrix_lin_fx );

		pop_wmops();