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nb_celp.c File Reference

#include <math.h>
#include "nb_celp.h"
#include "lpc.h"
#include "lsp.h"
#include "ltp.h"
#include "quant_lsp.h"
#include "cb_search.h"
#include "filters.h"
#include "stack_alloc.h"
#include "vq.h"
#include "speex_bits.h"
#include "vbr.h"
#include "misc.h"
#include "speex_callbacks.h"

Defines
#define	M_PI   3.14159265358979323846
#define	NULL   0
#define	SUBMODE(x)   st->submodes[st->submodeID]->x
#define	sqr(x)   ((x)*(x))
#define	median3(a, b, c)   ((a) < (b) ? ((b) < (c) ? (b) : ((a) < (c) ? (c) : (a))) : ((c) < (b) ? (b) : ((c) < (a) ? (c) : (a))))
Functions
void *	nb_encoder_init (SpeexMode *m)
void	nb_encoder_destroy (void *state)
int	nb_encode (void *state, float *in, SpeexBits *bits)
void *	nb_decoder_init (SpeexMode *m)
void	nb_decoder_destroy (void *state)
int	nb_decode (void *state, SpeexBits *bits, float *out)
int	nb_encoder_ctl (void *state, int request, void *ptr)
int	nb_decoder_ctl (void *state, int request, void *ptr)
Variables
float	exc_gain_quant_scal3 [8] = {-2.794750, -1.810660, -1.169850, -0.848119, -0.587190, -0.329818, -0.063266, 0.282826}
float	exc_gain_quant_scal1 [2] = {-0.35, 0.05}

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Define Documentation

#define M_PI   3.14159265358979323846

#define median3 (  a, b, c    )     ((a) < (b) ? ((b) < (c) ? (b) : ((a) < (c) ? (c) : (a))) : ((c) < (b) ? (b) : ((c) < (a) ? (c) : (a))))

#define NULL   0

#define sqr (  x    )     ((x)*(x))

#define SUBMODE (  x    )     st->submodes[st->submodeID]->x

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Function Documentation

int nb_decode (  void *    state, SpeexBits *    bits, float *    out )

Decodes one frame

int nb_decoder_ctl (  void *    state, int    request, void *    ptr )

ioctl-like function for controlling a narrowband decoder

void nb_decoder_destroy (  void *    state )

De-allocates decoder state resources

void* nb_decoder_init (  SpeexMode *    m )

Initializes decoder state

int nb_encode (  void *    state, float *    in, SpeexBits *    bits )

Encodes one frame

int nb_encoder_ctl (  void *    state, int    request, void *    ptr )

ioctl-like function for controlling a narrowband encoder

void nb_encoder_destroy (  void *    state )

De-allocates encoder state resources

void* nb_encoder_init (  SpeexMode *    m )

Initializes encoder state

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Variable Documentation

float exc_gain_quant_scal1[2] = {-0.35, 0.05}

float exc_gain_quant_scal3[8] = {-2.794750, -1.810660, -1.169850, -0.848119, -0.587190, -0.329818, -0.063266, 0.282826}

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