#include <math.h>
#include "sipr.h"
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/float_dsp.h"
#include "libavutil/mathematics.h"
#include "lsp.h"
#include "acelp_vectors.h"
#include "acelp_pitch_delay.h"
#include "acelp_filters.h"
#include "celp_filters.h"
#include "sipr16kdata.h"

Macros
#define	DIVIDE_BY_3(x) ((x) * 10923 >> 15)

Functions
static void	lsf2lsp (const float lsf, double lsp)
	Convert an lsf vector into an lsp vector. More...

static void	dequant (float out, const int idx, const float *const cbs[])

static void	lsf_decode_fp_16k (float lsf_history, float isp_new, const int *parm, int ma_pred)

static int	dec_delay3_1st (int index)

static int	dec_delay3_2nd (int index, int pit_min, int pit_max, int pitch_lag_prev)

static void	postfilter (float out_data, float synth, float iir_mem, float filt_mem[2], float *mem_preemph)

static void	acelp_lp_decodef (float lp_1st, float lp_2nd, const double lsp_2nd, const double lsp_prev)
	Floating point version of ff_acelp_lp_decode(). More...

static float	acelp_decode_gain_codef (float gain_corr_factor, const float fc_v, float mr_energy, const float quant_energy, const float *ma_prediction_coeff, int subframe_size, int ma_pred_order)
	Floating point version of ff_acelp_decode_gain_code(). More...

void	ff_sipr_decode_frame_16k (SiprContext ctx, SiprParameters params, float *out_data)

av_cold void	ff_sipr_init_16k (SiprContext *ctx)

Macro Definition Documentation

◆ DIVIDE_BY_3

#define DIVIDE_BY_3 ( x ) ((x) * 10923 >> 15)

Definition at line 174 of file sipr16k.c.

Function Documentation

◆ lsf2lsp()

static void lsf2lsp	(	const float *	lsf,
		double *	lsp
	)

static

Convert an lsf vector into an lsp vector.

Parameters

lsf	input lsf vector
lsp	output lsp vector

Definition at line 45 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

◆ dequant()

static void dequant	(	float *	out,
		const int *	idx,
		const float *const	cbs[]
	)

static

Definition at line 53 of file sipr16k.c.

Referenced by lsf_decode_fp_16k().

◆ lsf_decode_fp_16k()

static void lsf_decode_fp_16k	(	float *	lsf_history,
		float *	isp_new,
		const int *	parm,
		int	ma_pred
	)

static

Definition at line 63 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

◆ dec_delay3_1st()

static int dec_delay3_1st ( int index )

static

Definition at line 80 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

◆ dec_delay3_2nd()

static int dec_delay3_2nd	(	int	index,
		int	pit_min,
		int	pit_max,
		int	pitch_lag_prev
	)

static

Definition at line 88 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

◆ postfilter()

static void postfilter	(	float *	out_data,
		float *	synth,
		float *	iir_mem,
		float *	filt_mem[2],
		float *	mem_preemph
	)

static

Definition at line 99 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

◆ acelp_lp_decodef()

static void acelp_lp_decodef	(	float *	lp_1st,
		float *	lp_2nd,
		const double *	lsp_2nd,
		const double *	lsp_prev
	)

static

Floating point version of ff_acelp_lp_decode().

Definition at line 142 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

◆ acelp_decode_gain_codef()

static float acelp_decode_gain_codef	(	float	gain_corr_factor,
		const float *	fc_v,
		float	mr_energy,
		const float *	quant_energy,
		const float *	ma_prediction_coeff,
		int	subframe_size,
		int	ma_pred_order
	)