sipr16k.c File Reference

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

Go to the source code of this file.

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.
static void	dequant (float *out, const int *idx, const float *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)
void	ff_sipr_init_16k (SiprContext *ctx)

Macro Definition Documentation

#define DIVIDE_BY_3

(

x

)

((x) * 10923 >> 15)

Definition at line 174 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

Function Documentation

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().

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

static

Definition at line 53 of file sipr16k.c.

Referenced by 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().

static int dec_delay3_1st ( int  index )

static

Definition at line 80 of file sipr16k.c.

Referenced by ff_sipr_decode_frame_16k().

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().

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().

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().

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().

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().

void ff_sipr_init_16k

(

SiprContext *

ctx

)

Definition at line 271 of file sipr16k.c.

Referenced by sipr_decoder_init().