sipr16k.c File Reference

#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"

Go to the source code of this file.

Macros
#define	DIVIDE_BY_3(x)

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

)

Value:

((x) * 10923 >> 15)

Definition at line 174 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

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 )

static

Floating point version of ff_acelp_decode_gain_code().

Definition at line 161 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

ff_sipr_decode_frame_16k()

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

Definition at line 176 of file sipr16k.c.

Referenced by sipr_decoder_init().

ff_sipr_init_16k()

av_cold void ff_sipr_init_16k

(

SiprContext *

ctx

)

Definition at line 271 of file sipr16k.c.

Referenced by sipr_decoder_init().