FFmpeg: libavcodec/sipr.h File Reference

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Data Structures | Macros | Enumerations | Functions | Variables

sipr.h File Reference

#include "avcodec.h"
#include "acelp_pitch_delay.h"
#include "libavutil/mem.h"

Go to the source code of this file.

Data Structures

struct SiprParameters

struct SiprContext

Macros

#define LP_FILTER_ORDER_16k 16

#define L_SUBFR_16k 80

#define PITCH_MIN 30

#define PITCH_MAX 281

#define LSFQ_DIFF_MIN (0.0125 * M_PI)

#define LP_FILTER_ORDER 10

#define L_INTERPOL (LP_FILTER_ORDER + 1)

Number of past samples needed for excitation interpolation. More...

#define SUBFR_SIZE 48

Subframe size for all modes except 16k. More...

#define SUBFRAME_COUNT_16k 2

Enumerations

enum SiprMode {
MODE_16k, MODE_8k5, MODE_6k5, MODE_5k0,
MODE_COUNT
}

Functions

void ff_sipr_init_16k (SiprContext *ctx)

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

Variables

const float ff_pow_0_5 [16]

Macro Definition Documentation

#define LP_FILTER_ORDER_16k 16

Definition at line 31 of file sipr.h.

Referenced by acelp_lp_decodef(), ff_sipr_decode_frame_16k(), ff_sipr_init_16k(), lsf2lsp(), lsf_decode_fp_16k(), and postfilter().

#define L_SUBFR_16k 80

Definition at line 32 of file sipr.h.

Referenced by ff_sipr_decode_frame_16k(), postfilter(), and sipr_decode_frame().

#define PITCH_MIN 30

Definition at line 33 of file sipr.h.

#define PITCH_MAX 281

Definition at line 34 of file sipr.h.

#define LSFQ_DIFF_MIN (0.0125 * M_PI)

Definition at line 36 of file sipr.h.

#define LP_FILTER_ORDER 10

Definition at line 38 of file sipr.h.

#define L_INTERPOL (LP_FILTER_ORDER + 1)

Number of past samples needed for excitation interpolation.

Definition at line 41 of file sipr.h.

Referenced by decode_frame(), and ff_sipr_decode_frame_16k().

#define SUBFR_SIZE 48

Subframe size for all modes except 16k.

Definition at line 44 of file sipr.h.

Referenced by decode_frame(), eval_ir(), pitch_sharpening(), postfilter_5k0(), and sipr_decode_frame().

#define SUBFRAME_COUNT_16k 2

Definition at line 46 of file sipr.h.

Referenced by ff_sipr_decode_frame_16k().

Enumeration Type Documentation

enum SiprMode

Enumerator
MODE_16k
MODE_8k5
MODE_6k5
MODE_5k0
MODE_COUNT

Definition at line 48 of file sipr.h.

Function Documentation

void ff_sipr_init_16k ( SiprContext * ctx )

Definition at line 271 of file sipr16k.c.

Referenced by sipr_decoder_init().

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().

Variable Documentation

const float ff_pow_0_5[16]

Definition at line 135 of file sipr.c.

Referenced by postfilter(), and postfilter_5k0().

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