Commit a4cece7b authored Jul 31, 2024 by vaclav

formal improvements

parent a74db631

lib_com/cnst.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -564,7 +564,7 @@ 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 */
		#define MAX_LP_FILTER_ORDER 20 /* Max order of an LP filter */
		#endif

		#define L_FRAME 256 /* frame size at 12.8kHz */

lib_com/ivas_cnst.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -1444,7 +1444,11 @@ typedef enum
		/* LFE PLC */
		#define LFE_PLC_BUFLEN 240
		#define LFE_PLC_FS 1600
		#ifdef NONE_BE_FIX_816_LFE_PLC_FLOAT
		#define L_FRAME_1k6 ( LFE_PLC_FS / FRAMES_PER_SEC )
		#else
		#define L_FRAME_1k6 ( 20 * LFE_PLC_FS / 1000 )
		#endif
		#define LFE_PLC_LENANA LFE_PLC_BUFLEN
		#define LFE_PLC_FDEL 300

lib_com/ivas_rom_com.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -3168,6 +3168,7 @@ const double d_hamm_lfe_plc[LFE_PLC_LENANA / 2] =
		0.99108734991333569, 0.99330020638455863, 0.99519978850517732, 0.99678478347994692, 0.99805409592381300, 0.99900684861892730, 0.99964238312089115, 0.99996026021380402
		};
		#endif

		/------------------------------------------------------------------------------------------
		* MDFT/iMDFT ROM tables
		------------------------------------------------------------------------------------------/

lib_com/ivas_rom_com.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -361,7 +361,11 @@ extern const int16_t ivas_lfe_min_shift_tbl[IVAS_LFE_NUM_COEFFS_IN_SUBGRP];
		extern const ivas_lfe_freq_models ivas_str_lfe_freq_models;
		extern const float ivas_lfe_lpf_delay[2];

		#ifdef NONE_BE_FIX_816_LFE_PLC_FLOAT
		extern const float hamm_lfe_plc[LFE_PLC_LENANA / 2];
		#else
		extern const double d_hamm_lfe_plc[LFE_PLC_LENANA / 2];
		#endif

		extern const float ivas_sin_twiddle_480[IVAS_480_PT_LEN >> 1];
		extern const float ivas_cos_twiddle_480[IVAS_480_PT_LEN >> 1];

lib_com/lpc_tools.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -131,7 +131,7 @@ void autocorr(
		* of input signal
		---------------------------------------------------------------------/

		/! r: energy of prediction error /
		/! r: stability flag /
		int16_t lev_dur(
		float a, / o : LP coefficients (a[0] = 1.0) */
		const float r, / i : vector of autocorrelations */