FFmpeg
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#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 "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) |
av_cold void | ff_sipr_init_16k (SiprContext *ctx) |
#define DIVIDE_BY_3 | ( | x | ) | ((x) * 10923 >> 15) |
Definition at line 175 of file sipr16k.c.
Referenced by ff_sipr_decode_frame_16k().
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Convert an lsf vector into an lsp vector.
lsf | input lsf vector |
lsp | output lsp vector |
Definition at line 46 of file sipr16k.c.
Referenced by ff_sipr_decode_frame_16k().
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Definition at line 54 of file sipr16k.c.
Referenced by lsf_decode_fp_16k().
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Definition at line 64 of file sipr16k.c.
Referenced by ff_sipr_decode_frame_16k().
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Definition at line 81 of file sipr16k.c.
Referenced by ff_sipr_decode_frame_16k().
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Definition at line 89 of file sipr16k.c.
Referenced by ff_sipr_decode_frame_16k().
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Definition at line 100 of file sipr16k.c.
Referenced by ff_sipr_decode_frame_16k().
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Floating point version of ff_acelp_lp_decode().
Definition at line 143 of file sipr16k.c.
Referenced by ff_sipr_decode_frame_16k().
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Floating point version of ff_acelp_decode_gain_code().
Definition at line 162 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 177 of file sipr16k.c.
Referenced by sipr_decoder_init().
av_cold void ff_sipr_init_16k | ( | SiprContext * | ctx | ) |
Definition at line 272 of file sipr16k.c.
Referenced by sipr_decoder_init().