more possible slight complexity reduction (284ba948) · Commits · SA4 / Audio / IVAS BASOP

lib_com/ivas_pca_tools_fx.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -1377,7 +1377,11 @@ void pca_enc_s3_fx(

		q_ang_2surv_fx( ph1_fx, n1, ph1_q_fx, ind1 );

		#ifdef IMPROV_PRECISION
		tmp = mac_r( L_mac( L_mult( q_fx[1], q_fx[1] ), q_fx[2], q_fx[2] ), q_fx[3], q_fx[3] ); // Q15 + Q15 - Q15 -> Q15
		#else
		tmp = add( add( mult( q_fx[1], q_fx[1] ), mult( q_fx[2], q_fx[2] ) ), mult( q_fx[3], q_fx[3] ) ); // Q15 + Q15 - Q15 -> Q15
		#endif
		r_e = 0;
		move16();
		r_fx = Sqrt16( tmp, &r_e );
		@@ -1431,8 +1435,11 @@ void pca_enc_s3_fx(
		q_ang_2surv_fx( ph2_fx, n2[i], ph2_q_fx + 2 * i, ind2 + 2 * i );
		}

		#ifdef IMPROV_PRECISION
		r_fx = Sqrt16( mac_r( L_mult( q_fx[2], q_fx[2] ), q_fx[3], q_fx[3] ), &r_e );
		#else
		r_fx = Sqrt16( add( mult( q_fx[2], q_fx[2] ), mult( q_fx[3], q_fx[3] ) ), &r_e );

		#endif

		v_fx = BASOP_Util_Divide1616_Scale( q_fx[2], r_fx, &v_e );
		v_e = add( v_e, sub( 0, r_e ) );

lib_dec/bass_psfilter_fx.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1041,7 +1041,11 @@ Word16 res_bpf_adapt_ivas_fx(
		bpf_error_ratio = ONE_IN_Q14; // Q13
		move16();
		}
		#ifdef IMPROV_PRECISION
		bpf_error_ratio = mac_r( L_mult( STEREO_DFT_BPF_ADAPT_BETA_FX, bpf_error_ratio ), ( MAX_16 - STEREO_DFT_BPF_ADAPT_BETA_FX ), hStereoDft->bpf_error_ratio_mem_fx );
		#else
		bpf_error_ratio = add( mult( STEREO_DFT_BPF_ADAPT_BETA_FX, bpf_error_ratio ), mult( ( MAX_16 - STEREO_DFT_BPF_ADAPT_BETA_FX ), hStereoDft->bpf_error_ratio_mem_fx ) );
		#endif
		hStereoDft->bpf_error_ratio_mem_fx = bpf_error_ratio;
		move16();

lib_dec/ivas_sns_dec_fx.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -83,7 +83,11 @@ static void sns_1st_dec_fx(

		FOR( i = 0; i < M / 2; i++ )
		{
		#ifdef IMPROV_PRECISION
		snsq_fx[i] = L_mac( L_mult( ( *p_dico++ ), cdbk_fix ), means[i], means_fix ); // Q16
		#else
		snsq_fx[i] = L_add( L_mult( ( *p_dico++ ), cdbk_fix ), L_mult( means[i], means_fix ) ); // Q16
		#endif
		move32();
		}

		@@ -91,7 +95,11 @@ static void sns_1st_dec_fx(

		FOR( i = M / 2; i < M; i++ )
		{
		#ifdef IMPROV_PRECISION
		snsq_fx[i] = L_mac( L_mult( ( p_dico++ ), cdbk_fix ), means[i], means_fix ); /Q16*/
		#else
		snsq_fx[i] = L_add( L_mult( ( p_dico++ ), cdbk_fix ), L_mult( means[i], means_fix ) ); /Q16*/
		#endif
		move32();
		}

lib_dec/ivas_stereo_cng_dec.c

+27 −1

Original line number	Diff line number	Diff line
		@@ -121,7 +121,9 @@ static void stereo_dft_generate_comfort_noise_fx(
		Word32 tmp32_1, tmp32_2;
		Word16 q_div, q_sqrt1, q_sqrt2, q_sqrt, sqrt_res;
		Word16 q_shift, q_shift_1, q_shift_2, min_q;

		#ifdef IMPROV_PRECISION
		Word16 tmp16, tmp_p, tmp_s;
		#endif
		hFdCngCom = st->hFdCngDec->hFdCngCom;

		push_wmops( "DFT_CNG" );
		@@ -163,7 +165,11 @@ static void stereo_dft_generate_comfort_noise_fx(
		}
		ELSE
		{
		#ifdef IMPROV_PRECISION
		hStereoDft->g_state_fx[b] = mac_r( L_mult( ONE_MINUS_A_GFILT_FX, extract_h( pSideGain++ ) ), A_GFILT_FX, hStereoDft->g_state_fx[b] ); / Q15 */
		#else
		hStereoDft->g_state_fx[b] = add( mult( ONE_MINUS_A_GFILT_FX, extract_h( pSideGain++ ) ), mult( A_GFILT_FX, hStereoDft->g_state_fx[b] ) ); / Q15 */
		#endif
		move16();
		}

		@@ -190,13 +196,21 @@ static void stereo_dft_generate_comfort_noise_fx(
		}
		ELSE
		{
		#ifdef IMPROV_PRECISION
		hStereoCng->cm_fx[b] = mac_r( L_mult( ONE_MINUS_A_GFILT_FX, hStereoCng->coh_fx[b] ), A_GFILT_FX, hStereoCng->cm_fx[b] ); /* Q15 */
		#else
		hStereoCng->cm_fx[b] = add( mult( ONE_MINUS_A_GFILT_FX, hStereoCng->coh_fx[b] ), mult( A_GFILT_FX, hStereoCng->cm_fx[b] ) ); /* Q15 */
		#endif
		move16();
		}
		}
		ELSE
		{
		#ifdef IMPROV_PRECISION
		hStereoCng->cm_fx[b] = mac_r( L_mult( ONE_MINUS_A_GFILT_FX, hStereoCng->coh_fx[b] ), A_GFILT_FX, hStereoCng->cm_fx[b] ); /* Q15 */
		#else
		hStereoCng->cm_fx[b] = add( mult( ONE_MINUS_A_GFILT_FX, hStereoCng->coh_fx[b] ), mult( A_GFILT_FX, hStereoCng->cm_fx[b] ) ); /* Q15 */
		#endif
		move16();
		}
		}
		@@ -228,6 +242,17 @@ static void stereo_dft_generate_comfort_noise_fx(
		}

		LR_ratio = extract_h( tdm_ratio_tabl_fx[hStereoCng->last_tdm_idx] ); /* Q15 */
		#ifdef IMPROV_PRECISION
		tmp16 = shr( hStereoDft->g_state_fx[b], 2 );
		tmp_p = add( ONE_IN_Q13, tmp16 );
		tmp_s = sub( ONE_IN_Q13, tmp16 );
		tmp16 = mult( gamma, 2048 );

		c = BASOP_Util_Divide3232_Scale(
		L_mac( L_mult( tmp_p, tmp_p ), gamma, tmp16 ),
		L_mac( L_mult( tmp_s, tmp_s ), gamma, tmp16 ),
		&c_e );
		#else
		c = BASOP_Util_Divide3232_Scale(
		L_add( L_mult( add( ONE_IN_Q13, shr( hStereoDft->g_state_fx[b], 2 ) ),
		add( ONE_IN_Q13, shr( hStereoDft->g_state_fx[b], 2 ) ) ),
		@@ -236,6 +261,7 @@ static void stereo_dft_generate_comfort_noise_fx(
		sub( ONE_IN_Q13, shr( hStereoDft->g_state_fx[b], 2 ) ) ),
		L_shr( L_mult( gamma, gamma ), 4 ) ),
		&c_e );
		#endif
		q_sqrt = c_e;
		move16();
		sqrt_res = Sqrt16( mult( c, hStereoCng->cm_fx[b] ), &q_sqrt );

lib_dec/ivas_stereo_dft_dec_fx.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -3549,8 +3549,11 @@ void stereo_dft_dec_sid_coh_fx(
		pred_fx = add( pred_fx, shl( mult( ( pptr_fx++ ), cohBandq_fx[i] ), 2 ) ); /q-13*/
		}
		/* Weighted intra/inter-frame prediction */
		#ifdef IMPROV_PRECISION
		pred_fx = mac_r( L_mult( alpha_fx, pred_fx ), sub( 32767, alpha_fx ), shr( coh_fx[b], 2 ) ); /q-13/
		#else
		pred_fx = add( mult( alpha_fx, pred_fx ), mult( sub( 32767, alpha_fx ), shr( coh_fx[b], 2 ) ) ); /q-13/

		#endif
		/* Read residual index from bitstream */
		IF( LT_16( nb_bits, nr_of_sid_stereo_bits ) ) / If the bit limit is reached, res_index = 0 is assumed for remaining indices */
		{