commit 1 (e224c70c) · Commits · SA4 / Audio / IVAS BASOP

lib_com/gs_bitallocation_ivas_fx.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -106,7 +106,6 @@ void bands_and_bit_alloc_ivas_fx(
		Word32 sum_bit /Q0/, bit_fracf /Q18/;
		Word16 etmp;
		Word16 tmp;
		Word16 Ener_per_bd_iQ_tmp[MBANDS_GN_BITALLOC16k]; // Q13
		Word16 pos, band;
		Word32 SWB_bit_budget; // Q0 -> Q18
		Word32 bits_per_bands[MBANDS_GN_BITALLOC16k]; // Q18
		@@ -126,7 +125,6 @@ void bands_and_bit_alloc_ivas_fx(
		nb_tot_bands = MBANDS_GN_BITALLOC16k;
		move16();
		}
		Copy( Ener_per_bd_iQ, Ener_per_bd_iQ_tmp, nb_tot_bands );

		set32_fx( bits_per_bands, 0, MBANDS_GN_BITALLOC16k );
		set16_fx( out_bits_per_bands, 0, MBANDS_GN_BITALLOC16k );
		@@ -138,7 +136,7 @@ void bands_and_bit_alloc_ivas_fx(
		ener_vec[0] = add( Ener_per_bd_iQ[0], Ener_per_bd_iQ[1] ); /Q12 /
		#endif
		move16();
		Copy( Ener_per_bd_iQ_tmp + 1, ener_vec, MBANDS_GN - 1 ); /Q12 /
		Copy( Ener_per_bd_iQ + 1, ener_vec, MBANDS_GN - 1 ); /Q12 /
		ener_vec[MBANDS_GN - 1] = ener_vec[MBANDS_GN - 2];
		move16();
		IF( EQ_16( L_frame, L_FRAME16k ) )

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_pca_tools.c

+11 −9

Original line number	Diff line number	Diff line
		@@ -322,20 +322,19 @@ static void house_refl_fx(
		Word32 rcp_fx = L_deposit_h( tmp ); // rcp_q
		Word16 rcp_q = sub( Q31, exp );

		rcp_fx = L_shr( rcp_fx, sub( rcp_q, Q31 ) ); // making rcp_fx in Q31
		FOR( i = 0; i < sizex; i++ )
		{
		norm = norm_l( pu_fx[i] );
		L_tmp = L_shl( pu_fx[i], norm );
		pu_fx[i] = Mpy_32_32( L_tmp, rcp_fx ); // px_q + Q31 - Q31 -> px_q
		pu_e[i] = sub( 31, add( px_q, norm ) );
		pu_fx[i] = Mpy_32_32( L_tmp, rcp_fx ); // ( px_q + norm ) + rcp_q - 31 -> exp: 31 + 31 - (px_q + norm + rcp_q)
		pu_e[i] = sub( 62, add( add( px_q, norm ), rcp_q ) );
		move32();
		move16();
		}

		IF( pu_fx[0] >= 0 )
		{
		pu_fx[0] = L_add( pu_fx[0], L_shl( 1, sub( 31, pu_e[0] ) ) );
		pu_fx[0] = BASOP_Util_Add_Mant32Exp( pu_fx[0], pu_e[0], ONE_IN_Q30, 1, &pu_e[0] );
		( normu_fx ) = L_negate( normu_fx );

		move32();
		@@ -343,7 +342,7 @@ static void house_refl_fx(
		}
		ELSE
		{
		pu_fx[0] = L_sub( pu_fx[0], L_shl( 1, sub( 31, pu_e[0] ) ) );
		pu_fx[0] = BASOP_Util_Add_Mant32Exp( pu_fx[0], pu_e[0], -ONE_IN_Q30, 1, &pu_e[0] );
		move32();
		}

		@@ -357,8 +356,8 @@ static void house_refl_fx(
		FOR( i = 0; i < sizex; i++ )
		{
		pu_fx[i] = Mpy_32_32( pu_fx[i], rcp_fx ); // pu_e[i] + exp2
		pu_fx[i] = L_shl( pu_fx[i], exp2 ); // pu_e[i] + exp2
		move32();
		pu_e[i] = add( pu_e[i], exp2 );
		move32();
		}

		@@ -489,6 +488,7 @@ static void house_qr_fx(
		Word32 U_fx[FOA_CHANNELS * FOA_CHANNELS];
		Word16 U_e[FOA_CHANNELS * FOA_CHANNELS];
		Word32 pu_fx[FOA_CHANNELS];
		Word16 tmp_pu_e[FOA_CHANNELS];
		Word16 pv_exp[FOA_CHANNELS];
		Word32 pa_fx[FOA_CHANNELS];
		Word16 tmp_e;
		@@ -573,8 +573,10 @@ static void house_qr_fx(
		{
		FOR( i = 0; i < n_rows; i++ )
		{
		pu_fx[i] = L_shr( U_fx[i * n + k], sub( sub( 31, U_e[i * n + k] ), pu_fx_q ) ); // pu_fx_q
		pu_fx[i] = U_fx[i * n + k];
		move32();
		tmp_pu_e[i] = U_e[i * n + k];
		move16();
		}

		FOR( s = k; s < n_rows; s++ )
		@@ -586,8 +588,8 @@ static void house_qr_fx(
		}


		pv_fx[s - k] = dotp_fixed( &pu_fx[k], &pa_fx[k], sub( n_rows, k ) ); // pu_fx_q + Q31 - Q31
		pv_exp[s - k] = sub( 31, pu_fx_q );
		pv_fx[s - k] = dotp_fixed( &pu_fx[k], &pa_fx[k], sub( n_rows, k ) ); // exp: tmp_pu_e[k]
		pv_exp[s - k] = tmp_pu_e[k];
		move32();
		move16();
		}

lib_com/ivas_prot.h

+2 −3

Original line number	Diff line number	Diff line
		@@ -234,8 +234,7 @@ ivas_error pre_proc_front_ivas_fx(
		const Word16 input_frame, /* i : frame length */
		const Word16 n, /* i : channel number */
		Word16 old_inp_12k8_fx[], /* o : (Q-1) buffer of old input signal */
		float old_inp_12k8[], /* o : buffer of old input signal */
		float old_inp_16k[], /* o : buffer of old input signal @16kHz */
		Word16 old_inp_16k_fx[], /* o : (Q-1) buffer of old input signal @16kHz */
		Word32 ener_fx, / o : residual energy from Levinson-Durbin Q_r */
		Word16 relE_fx, / o : frame relative energy Q8 */
		Word16 A_fx[NB_SUBFR16k * ( M + 1 )], /* o : A(z) unquantized for the 4 subframes */
		@@ -249,7 +248,7 @@ ivas_error pre_proc_front_ivas_fx(
		Word32 realBuffer_fx[CLDFB_NO_COL_MAX][CLDFB_NO_CHANNELS_MAX], /* i/o: real buffer Q(q_re_im_buf) */
		Word32 imagBuffer_fx[CLDFB_NO_COL_MAX][CLDFB_NO_CHANNELS_MAX], /* i/o: imag buffer Q(q_re_im_buf) */
		Word16 q_re_im_buf, / i/o: Q-factor of real and imag buffer */
		float old_wsp[], /* o : weighted input signal buffer */
		Word16 old_wsp_fx[], /* o : weighted input signal buffer */
		Word16 pitch_fr_fx[NB_SUBFR], /* o : fractional pitch values Q6 */
		Word16 voicing_fr_fx[NB_SUBFR], /* o : fractional pitch gains Q15 */
		Word16 loc_harm, / o : harmonicity flag */

lib_com/ivas_prot_fx.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -779,6 +779,10 @@ void destroy_core_enc_fx(
		ENC_CORE_HANDLE hCoreCoder /* i/o: core encoder structure */
		);

		void destroy_evs_core_enc_fx(
		ENC_CORE_HANDLE hCoreCoder /* i/o: core encoder structure */
		);

		ivas_error ivas_sce_dec_fx(
		Decoder_Struct st_ivas, / i/o: IVAS decoder structure */
		const Word16 sce_id, /* i : SCE # identifier */
		@@ -3761,6 +3765,12 @@ 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 */
		);