commit 1 (fd9ad82b) · Commits · SA4 / Audio / IVAS BASOP

lib_com/ivas_filters.c

+27 −0

Original line number	Diff line number	Diff line
		@@ -279,6 +279,33 @@ void ivas_filter_process_fx(
		}
		#endif

		void ivas_filter_process_exp_fx(
		ivas_filters_process_state_t filter_state, / i/o: filter state handle */
		Word32 pIn_Out_fx, / i/o: signal subject to filtering (exp[i] : pIn_out_e[i]) */
		const Word16 length, /* i : filter order */
		Word16 *pIn_Out_e )
		{
		SWITCH( filter_state->order )
		{
		case IVAS_FILTER_ORDER_1:
		case IVAS_FILTER_ORDER_2:
		ivas_iir_2_filter_fx( filter_state, pIn_Out_fx, length, IVAS_FILTER_STAGE_0, pIn_Out_e );
		/* Scale pIn_Out_fx back to input Q */
		BREAK;
		case IVAS_FILTER_ORDER_4:
		/* biquad-1 */
		ivas_iir_2_filter_fx( filter_state, pIn_Out_fx, length, IVAS_FILTER_STAGE_0, pIn_Out_e );
		/* biquad-2 */
		ivas_iir_2_filter_fx( filter_state, pIn_Out_fx, length, IVAS_FILTER_STAGE_1, pIn_Out_e );
		/* Scale pIn_Out_fx back to input Q */
		BREAK;
		default:
		BREAK;
		}

		return;
		}


		/-----------------------------------------------------------------------------------------
		* Function ivas_iir_2_filter()

lib_com/ivas_prot_fx.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -3761,6 +3761,12 @@ void ivas_filter_process_fx(
		const Word16 length, /* i : filter order */
		Word16 q_factor );

		void ivas_filter_process_exp_fx(
		ivas_filters_process_state_t filter_state, / i/o: filter state handle */
		Word32 pIn_Out_fx, / i/o: signal subject to filtering (exp[i] : pIn_out_e[i]) */
		const Word16 length, /* i : filter order */
		Word16 *pIn_Out_e );

		ivas_error ivas_osba_enc_open_fx(
		Encoder_Struct st_ivas / i/o: IVAS encoder handle */
		);

lib_com/ivas_transient_det.c

+30 −20

Original line number	Diff line number	Diff line
		@@ -554,15 +554,18 @@ static float ivas_calc_duck_gain(
		static Word32 ivas_calc_duck_gain_fx(
		const Word32 duck_gain, /Q30/
		const Word32 duck_coeff, /Q30/
		const Word32 env_1, /Q14/
		const Word32 env_2, /Q14/
		const Word32 env_1, /exp : env1_e/
		const Word16 env1_e,
		const Word32 env_2, /exp : env2_e/
		const Word16 env2_e,
		const Word32 duck_mult_fac /Q29/ )
		{
		Word32 duck_gain_out;
		Word32 duck_gain_out, L_tmp;
		Word16 tmp_e;

		duck_gain_out = L_add( L_shl( Mpy_32_32( L_sub( duck_gain, ONE_IN_Q30 ), duck_coeff ), Q1 ), ONE_IN_Q30 ); /Q30/

		IF( LT_32( Mpy_32_32( duck_mult_fac, env_1 ), Mpy_32_32( L_shr( duck_gain_out, 1 ), env_2 ) ) )
		IF( EQ_16( BASOP_Util_Cmp_Mant32Exp( Mpy_32_32( duck_mult_fac, env_1 ), add( 2, env1_e ), Mpy_32_32( duck_gain_out, env_2 ), add( 1, env2_e ) ), -1 ) )
		{
		test();
		IF( ( env_1 == 0 ) \|\| ( env_2 == 0 ) )
		@@ -572,7 +575,10 @@ static Word32 ivas_calc_duck_gain_fx(
		}
		ELSE
		{
		duck_gain_out = Mpy_32_32( duck_mult_fac, L_shl( (Word32) ( divide3232( env_1, env_2 ) ), Q16 ) ); /Q29/
		L_tmp = BASOP_Util_Divide3232_Scale_cadence( env_1, env_2, &tmp_e );
		L_tmp = L_shl( L_tmp, add( sub( env1_e, env2_e ), tmp_e ) );

		duck_gain_out = Mpy_32_32( duck_mult_fac, L_tmp ); /Q29/
		duck_gain_out = L_shl( duck_gain_out, Q1 ); /Q30/
		}
		}
		@@ -660,9 +666,9 @@ void ivas_td_decorr_get_ducking_gains_fx(
		const Word16 frame_len, /Q0/
		const Word16 tdet_flag /Q0/ )
		{
		Word16 i, q = Q14;
		move16();
		Word16 i;
		Word32 e_fast_fx[L_FRAME48k], e_slow_fx[L_FRAME48k];
		Word16 e_fast_e[L_FRAME48k], e_slow_e[L_FRAME48k];
		Word32 in_duck_gain = hTranDet->in_duck_gain; /Q30/
		move32();
		Word32 out_duck_gain = hTranDet->out_duck_gain; /Q30/
		@@ -676,30 +682,34 @@ void ivas_td_decorr_get_ducking_gains_fx(

		Copy32( pIn_pcm, e_fast_fx, frame_len ); /Q11/

		set16_fx( e_fast_e, 31 - Q11, L_FRAME48k );

		/* env hpf */
		ivas_filter_process_fx( &hTranDet->env_hpf, e_fast_fx, frame_len, q );
		ivas_filter_process_exp_fx( &hTranDet->env_hpf, e_fast_fx, frame_len, e_fast_e );

		Word16 q_factor_diff = sub( 31, q );

		FOR( i = 0; i < frame_len; i++ )
		{
		e_fast_fx[i] = L_add( L_abs( e_fast_fx[i] ), L_shr( IVAS_TDET_PARM_ENV_EPS_fx, q_factor_diff ) ); /Q14/
		// e_fast_fx[i] = L_add( L_abs( e_fast_fx[i] ), L_shr( IVAS_TDET_PARM_ENV_EPS_fx, q_factor_diff ) ); /Q14/
		e_fast_fx[i] = BASOP_Util_Add_Mant32Exp( L_abs( e_fast_fx[i] ), e_fast_e[i], IVAS_TDET_PARM_ENV_EPS_fx, 0, &e_fast_e[i] );
		move32();
		e_slow_fx[i] = e_fast_fx[i]; /Q14/
		e_slow_fx[i] = e_fast_fx[i];
		move32();
		e_slow_e[i] = e_fast_e[i];
		move16();
		}

		/* env fast*/
		ivas_filter_process_fx( &hTranDet->env_fast, e_fast_fx, frame_len, q );
		ivas_filter_process_exp_fx( &hTranDet->env_fast, e_fast_fx, frame_len, e_fast_e );

		/* env slow */
		ivas_filter_process_fx( &hTranDet->env_slow, e_slow_fx, frame_len, q );
		ivas_filter_process_exp_fx( &hTranDet->env_slow, e_slow_fx, frame_len, e_slow_e );

		IF( tdet_flag )
		{
		FOR( i = 0; i < frame_len; i++ )
		{
		in_duck_gain = ivas_calc_duck_gain_fx( in_duck_gain, in_duck_coeff, e_slow_fx[i], e_fast_fx[i], duck_mult_fac ); /Q30/
		in_duck_gain = ivas_calc_duck_gain_fx( in_duck_gain, in_duck_coeff, e_slow_fx[i], e_slow_e[i], e_fast_fx[i], e_fast_e[i], duck_mult_fac ); /Q30/
		pIn_duck_gains[i] = in_duck_gain; /Q30/
		move32();
		}
		@@ -710,10 +720,10 @@ void ivas_td_decorr_get_ducking_gains_fx(
		{
		FOR( i = 0; i < frame_len; i++ )
		{
		in_duck_gain = ivas_calc_duck_gain_fx( in_duck_gain, in_duck_coeff, e_slow_fx[i], e_fast_fx[i], duck_mult_fac ); /Q30/
		in_duck_gain = ivas_calc_duck_gain_fx( in_duck_gain, in_duck_coeff, e_slow_fx[i], e_slow_e[i], e_fast_fx[i], e_fast_e[i], duck_mult_fac ); /Q30/
		pIn_duck_gains[i] = in_duck_gain; /Q30/
		move32();
		out_duck_gain = ivas_calc_duck_gain_fx( out_duck_gain, out_duck_coeff, e_fast_fx[i], e_slow_fx[i], duck_mult_fac ); /Q30/
		out_duck_gain = ivas_calc_duck_gain_fx( out_duck_gain, out_duck_coeff, e_fast_fx[i], e_fast_e[i], e_slow_fx[i], e_slow_e[i], duck_mult_fac ); /Q30/
		pOut_duck_gains[i] = out_duck_gain; /Q30/
		move32();
		}

lib_com/trans_inv_fx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -531,7 +531,7 @@ void preecho_sb_fx(
		tmp_fx1 = norm_l( es_mdct_fx[i] );
		tmp_fxL1 = L_shl( es_mdct_fx[i], tmp_fx1 );
		tmp_fxL2 = L_shl( mean_prev_fx_loc, tmp_fx1 );
		tmp_fx1 = round_fx( tmp_fxL1 );
		tmp_fx1 = round_fx_sat( tmp_fxL1 );
		tmp_fx2 = round_fx( tmp_fxL2 );
		tmp_fx3 = div_s( tmp_fx2, tmp_fx1 );
		min_g_fx[i] = Frac_sqrt( tmp_fx3 );

lib_dec/ivas_stereo_dft_dec_fx.c

+7 −7

Original line number	Diff line number	Diff line
		@@ -2243,23 +2243,23 @@ void stereo_dft_dec_fx(
		N1 = L_shl( Mpy_32_16_1( scale_fact, rand_gauss_fix( &ftmp, cna_seed ) ), Q2 ); /* q_cna_level */
		N2 = L_shl( Mpy_32_16_1( scale_fact, rand_gauss_fix( &ftmp, cna_seed ) ), Q2 ); /* q_cna_level */
		l_tmp = L_add( Madd_32_16( N1, N1, g ), Mpy_32_16_1( N2, gamma ) ); /* q_cna_level */
		l_tmp = L_shr( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		l_tmp = L_shr_sat( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		DFT_L[2 * i] = L_add( DFT_L[2 * i], l_tmp ); /* q_dft */
		move32();
		l_tmp = L_sub( Msub_32_16( N1, N1, g ), Mpy_32_16_1( N2, gamma ) ); /* q_cna_level */
		l_tmp = L_shr( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		DFT_R[2 * i] = L_add( DFT_R[2 * i], l_tmp ); /* q_dft */
		l_tmp = L_shr_sat( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		DFT_R[2 * i] = L_add_sat( DFT_R[2 * i], l_tmp ); /* q_dft */
		move32();

		N1 = L_shl( Mpy_32_16_1( scale_fact, rand_gauss_fix( &ftmp, cna_seed ) ), Q2 ); /* q_cna_level */
		N2 = L_shl( Mpy_32_16_1( scale_fact, rand_gauss_fix( &ftmp, cna_seed ) ), Q2 ); /* q_cna_level */
		l_tmp = L_add( Madd_32_16( N1, N1, g ), Mpy_32_16_1( N2, gamma ) ); /* q_cna_level */
		l_tmp = L_shr( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		DFT_L[2 * i + 1] = L_add( DFT_L[2 * i + 1], l_tmp ); /* q_dft */
		l_tmp = L_shr_sat( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		DFT_L[2 * i + 1] = L_add_sat( DFT_L[2 * i + 1], l_tmp ); /* q_dft */
		move32();
		l_tmp = L_sub( Msub_32_16( N1, N1, g ), Mpy_32_16_1( N2, gamma ) ); /* q_cna_level */
		l_tmp = L_shr( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		DFT_R[2 * i + 1] = L_add( DFT_R[2 * i + 1], l_tmp ); /* q_dft */
		l_tmp = L_shr_sat( l_tmp, sub( q_cna_level, hStereoDft->q_dft ) ); /* q_dft */
		DFT_R[2 * i + 1] = L_add_sat( DFT_R[2 * i + 1], l_tmp ); /* q_dft */
		move32();
		}
		}