Commit f95a1865 authored Jul 31, 2024 by Jiaquan Huo

Fix stack corruption in a2rc for LFE PLC

parent cc3b0977

lib_com/cnst.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -563,6 +563,10 @@ enum

		#define INT_FS_12k8 12800 /* internal sampling frequency */
		#define M 16 /* order of the LP filter @ 12.8kHz */
		#ifdef NONE_BE_FIX_816_LFE_PLC_FLOAT
		#define MAX_LP_FILTER_ORDER (20) /* Max order of an LP filter */
		#endif

		#define L_FRAME 256 /* frame size at 12.8kHz */
		#define NB_SUBFR 4 /* number of subframes per frame */
		#define L_SUBFR ( L_FRAME / NB_SUBFR ) /* subframe size */

lib_com/lsf_tools.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -969,7 +969,11 @@ uint16_t a2rc(
		const int16_t lpcorder /* i : LPC order */
		)
		{
		#ifndef NONE_BE_FIX_816_LFE_PLC_FLOAT
		float f[M];
		#else
		float f[MAX_LP_FILTER_ORDER];
		#endif
		int16_t m, j, n;
		float km, denom, x;

lib_dec/ivas_lfe_plc.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -46,7 +46,11 @@
		------------------------------------------------------------------------------------------/

		#define LFE_PLC_DSF ( 48000 / LFE_PLC_FS )
		#ifndef NONE_BE_FIX_816_LFE_PLC_FLOAT
		#define LFE_PLC_LPCORD ( 20 )
		#else
		#define LFE_PLC_LPCORD ( MAX_LP_FILTER_ORDER )
		#endif
		#define POW_THR ( 1.0e-8f )
		#define LFE_PLC_RECLEN_48K ( ( IVAS_LFE_NUM_COEFFS_IN_SUBGRP + 1 ) * L_FRAME48k / IVAS_LFE_NUM_COEFFS_IN_SUBGRP + LFE_PLC_FDEL )
		#define LFE_PLC_RECLEN ( ( LFE_PLC_RECLEN_48K / LFE_PLC_DSF ) )