fix bugs in TD-PLC and whitening of noise shape (4e43ae51) · Commits · IVAS Codec Public Collaboration / IVAS Codec

lib_dec/er_dec_tcx.c

+5 −13

Original line number	Diff line number	Diff line
		@@ -34,6 +34,8 @@
		EVS Codec 3GPP TS26.443 Nov 04, 2021. Version 12.14.0 / 13.10.0 / 14.6.0 / 15.4.0 / 16.3.0
		====================================================================================*/

		#include "cnst.h"
		#include "ivas_cnst.h"
		#include <assert.h>
		#include <stdint.h>
		#include "options.h"
		@@ -279,7 +281,7 @@ void con_tcx(
		st->bpf_gain_param = 0;

		/* PLC: calculate damping factor */
		alpha = Damping_fact( st->core_ext_mode, st->nbLostCmpt, st->last_good, st->stab_fac, &( st->lp_gainp ), 0 );
		alpha = Damping_fact( st->core_ext_mode, st->nbLostCmpt, st->last_good, st->stab_fac, &( st->lp_gainp ), ACELP_CORE );

		if ( st->nbLostCmpt == 1 )
		{
		@@ -338,7 +340,7 @@ void con_tcx(
		set_f( pitch_buf, (float) L_SUBFR, st->nb_subfr );

		/* PLC: calculate damping factor */
		alpha = Damping_fact( st->core_ext_mode, st->nbLostCmpt, st->last_good, st->stab_fac, &( st->lp_gainp ), 0 );
		alpha = Damping_fact( st->core_ext_mode, st->nbLostCmpt, st->last_good, st->stab_fac, &( st->lp_gainp ), ACELP_CORE );
		}

		/-----------------------------------------------------------------
		@@ -548,17 +550,7 @@ void con_tcx(
		#ifdef MDCT_STEREO_PLC_FADE_2_BG_NOISE
		if ( A_cng != NULL )
		{
		if ( ( st->nbLostCmpt == 1 && st->idchan == 0 ) \|\| ( st->nbLostCmpt == 2 && st->idchan == 1 ) )
		{
		float lsp_cng[M];

		lpc_from_spectrum( st->hFdCngDec->hFdCngCom, st->hFdCngDec->hFdCngCom->startBand, st->hFdCngDec->hFdCngCom->stopFFTbin, 0.f );

		a2lsp_stab( st->hFdCngDec->hFdCngCom->A_cng, lsp_cng, st->lspold_cng );
		mvr2r( lsp_cng, st->lspold_cng, M );
		}

		if ( alpha != 1.0f )
		if ( st->plcBackgroundNoiseUpdated && alpha != 1.0f )
		{
		float lsp_local[M], lsp_fade[M], alpha_inv;

lib_dec/fd_cng_dec.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -519,7 +519,7 @@ void ApplyFdCng(
		{
		TonalMdctConceal_whiten_noise_shape( st, L_frame, ON_FIRST_LOST_FRAME );
		}
		else if ( st->element_mode != IVAS_CPE_MDCT )
		else if ( st->element_mode != IVAS_CPE_MDCT \|\| st->core == ACELP_CORE )
		{
		lpc_from_spectrum( hFdCngCom, hFdCngCom->startBand, hFdCngCom->stopFFTbin, 0.f );
		a2lsp_stab( hFdCngCom->A_cng, lsp_cng, st->lspold_cng );

lib_dec/ivas_core_dec.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -435,7 +435,7 @@ ivas_error ivas_core_dec(
		/* On first good frame after frameloss undo the whitening of the bg noise shape */
		for ( n = 0; n < n_channels; ++n )
		{
		if ( sts[n]->last_core != ACELP_CORE )
		if ( sts[n]->last_core_bfi != ACELP_CORE )
		{
		TonalMdctConceal_whiten_noise_shape( sts[n], L_FRAME16k, ON_FIRST_GOOD_FRAME );
		}