iLBC_define.h File Reference

#include <string.h>

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Data Structures
struct	iLBC_Dec_Inst_t_
struct	iLBC_Enc_Inst_t_
struct	iLBC_ULP_Inst_t_

Macros
#define	BLOCKL_20MS   160
#define	BLOCKL_30MS   240
#define	BLOCKL_MAX   240
#define	BYTE_LEN   8
#define	CB_EXPAND   2
#define	CB_FILTERLEN   2*4
#define	CB_HALFFILTERLEN   4
#define	CB_MAXGAIN   (float)1.3
#define	CB_MEML   147
#define	CB_NSTAGES   3
#define	CB_RESRANGE   34
#define	DELAY_DS   3
#define	ENH_ALPHA0   (float)0.05
#define	ENH_BLOCKL   80 /* block length */
#define	ENH_BLOCKL_HALF   (ENH_BLOCKL/2)
#define	ENH_BUFL   (ENH_NBLOCKS_TOT)*ENH_BLOCKL
#define	ENH_CORRDIM   (2*ENH_SLOP+1)
#define	ENH_FL0
#define	ENH_HL
#define	ENH_NBLOCKS   (BLOCKL_MAX/ENH_BLOCKL)
#define	ENH_NBLOCKS_EXTRA   5
#define	ENH_NBLOCKS_TOT
#define	ENH_OVERHANG   2
#define	ENH_PLOCSL
#define	ENH_SLOP
#define	ENH_UPS0   4 /* upsampling rate */
#define	ENH_VECTL   (ENH_BLOCKL+2*ENH_FL0)
#define	EPS   (float)2.220446049250313e-016
#define	FACTOR_DS   2
#define	FILTERORDER_DS   7
#define	FLOAT_MAX   (float)1.0e37
#define	LPC_ASYMDIFF   20
#define	LPC_BW   (float)60.0
#define	LPC_CHIRP_SYNTDENUM   (float)0.9025
#define	LPC_CHIRP_WEIGHTDENUM   (float)0.4222
#define	LPC_FILTERORDER   10
#define	LPC_HALFORDER   (LPC_FILTERORDER/2)
#define	LPC_LOOKBACK   60
#define	LPC_N_20MS   1
#define	LPC_N_30MS   2
#define	LPC_N_MAX   2
#define	LPC_WN   (float)1.0001
#define	LSF_NSPLIT   3
#define	LSF_NUMBER_OF_STEPS   4
#define	MAX_SAMPLE   32767
#define	MIN_SAMPLE   -32768
#define	NASUB_20MS   2
#define	NASUB_30MS   4
#define	NASUB_MAX   4
#define	NO_OF_BYTES_20MS   38
#define	NO_OF_BYTES_30MS   50
#define	NO_OF_WORDS_20MS   19
#define	NO_OF_WORDS_30MS   25
#define	NSUB_20MS   4
#define	NSUB_30MS   6
#define	NSUB_MAX   6
#define	PI   (float)3.14159265358979323846
#define	PI2   (float)0.159154943
#define	STATE_BITS   3
#define	STATE_LEN   80
#define	STATE_SHORT_LEN_20MS   57
#define	STATE_SHORT_LEN_30MS   58
#define	SUBL   40
#define	TWO_PI   (float)6.283185307
#define	ULP_CLASSES   3

Typedefs
typedef struct iLBC_Dec_Inst_t_	iLBC_Dec_Inst_t
typedef struct iLBC_Enc_Inst_t_	iLBC_Enc_Inst_t
typedef struct iLBC_ULP_Inst_t_	iLBC_ULP_Inst_t

Macro Definition Documentation

BLOCKL_20MS

#define BLOCKL_20MS   160

Definition at line 19 of file iLBC_define.h.

BLOCKL_30MS

#define BLOCKL_30MS   240

Definition at line 20 of file iLBC_define.h.

BLOCKL_MAX

#define BLOCKL_MAX   240

Definition at line 21 of file iLBC_define.h.

BYTE_LEN

#define BYTE_LEN   8

Definition at line 100 of file iLBC_define.h.

CB_EXPAND

#define CB_EXPAND   2

Definition at line 57 of file iLBC_define.h.

CB_FILTERLEN

#define CB_FILTERLEN   2*4

Definition at line 59 of file iLBC_define.h.

CB_HALFFILTERLEN

#define CB_HALFFILTERLEN   4

Definition at line 60 of file iLBC_define.h.

CB_MAXGAIN

#define CB_MAXGAIN   (float)1.3

Definition at line 62 of file iLBC_define.h.

CB_MEML

#define CB_MEML   147

Definition at line 58 of file iLBC_define.h.

CB_NSTAGES

#define CB_NSTAGES   3

Definition at line 56 of file iLBC_define.h.

CB_RESRANGE

#define CB_RESRANGE   34

Definition at line 61 of file iLBC_define.h.

DELAY_DS

#define DELAY_DS   3

Definition at line 90 of file iLBC_define.h.

ENH_ALPHA0

#define ENH_ALPHA0   (float)0.05

Definition at line 85 of file iLBC_define.h.

ENH_BLOCKL

#define ENH_BLOCKL   80 /* block length */

Definition at line 66 of file iLBC_define.h.

ENH_BLOCKL_HALF

#define ENH_BLOCKL_HALF   (ENH_BLOCKL/2)

Definition at line 67 of file iLBC_define.h.

ENH_BUFL

#define ENH_BUFL   (ENH_NBLOCKS_TOT)*ENH_BLOCKL

Definition at line 84 of file iLBC_define.h.

ENH_CORRDIM

#define ENH_CORRDIM   (2*ENH_SLOP+1)

Definition at line 80 of file iLBC_define.h.

ENH_FL0

#define ENH_FL0

Value:

                                          3   /* 2*FLO+1 is the length of
                                          each filter */

Definition at line 73 of file iLBC_define.h.

{
       int lsf_bits[6][ULP_CLASSES+2];
       int start_bits[ULP_CLASSES+2];
       int startfirst_bits[ULP_CLASSES+2];
       int scale_bits[ULP_CLASSES+2];
       int state_bits[ULP_CLASSES+2];
       int extra_cb_index[CB_NSTAGES][ULP_CLASSES+2];
       int extra_cb_gain[CB_NSTAGES][ULP_CLASSES+2];
       int cb_index[NSUB_MAX][CB_NSTAGES][ULP_CLASSES+2];
       int cb_gain[NSUB_MAX][CB_NSTAGES][ULP_CLASSES+2];
   } iLBC_ULP_Inst_t;
 
   /* type definition encoder instance */
 
 
 
 
 
   typedef struct iLBC_Enc_Inst_t_ {
 
       /* flag for frame size mode */
       int mode;
 
       /* basic parameters for different frame sizes */
       int blockl;
       int nsub;
       int nasub;
       int no_of_bytes, no_of_words;
       int lpc_n;
       int state_short_len;
       const iLBC_ULP_Inst_t *ULP_inst;
 
       /* analysis filter state */
       float anaMem[LPC_FILTERORDER];
 
       /* old lsf parameters for interpolation */
       float lsfold[LPC_FILTERORDER];
       float lsfdeqold[LPC_FILTERORDER];
 
       /* signal buffer for LP analysis */
       float lpc_buffer[LPC_LOOKBACK + BLOCKL_MAX];
 
       /* state of input HP filter */
       float hpimem[4];
 
   } iLBC_Enc_Inst_t;
 
   /* type definition decoder instance */
   typedef struct iLBC_Dec_Inst_t_ {
 
       /* flag for frame size mode */
       int mode;
 
       /* basic parameters for different frame sizes */
       int blockl;
       int nsub;
       int nasub;
       int no_of_bytes, no_of_words;
       int lpc_n;
       int state_short_len;
       const iLBC_ULP_Inst_t *ULP_inst;
 
       /* synthesis filter state */
       float syntMem[LPC_FILTERORDER];
 
       /* old LSF for interpolation */
 
 
 
 
 
       float lsfdeqold[LPC_FILTERORDER];
 
       /* pitch lag estimated in enhancer and used in PLC */
       int last_lag;
 
       /* PLC state information */
       int prevLag, consPLICount, prevPLI, prev_enh_pl;
       float prevLpc[LPC_FILTERORDER+1];
       float prevResidual[NSUB_MAX*SUBL];
       float per;
       unsigned long seed;
 
       /* previous synthesis filter parameters */
       float old_syntdenum[(LPC_FILTERORDER + 1)*NSUB_MAX];
 
       /* state of output HP filter */
       float hpomem[4];
 
       /* enhancer state information */
       int use_enhancer;
       float enh_buf[ENH_BUFL];
       float enh_period[ENH_NBLOCKS_TOT];
 
   } iLBC_Dec_Inst_t;
 
   #endif

ENH_HL

#define ENH_HL

Value:

                                          3   /* 2*ENH_HL+1 is number blocks
                                          in said second sequence */

Definition at line 68 of file iLBC_define.h.

ENH_NBLOCKS

#define ENH_NBLOCKS   (BLOCKL_MAX/ENH_BLOCKL)

Definition at line 81 of file iLBC_define.h.

ENH_NBLOCKS_EXTRA

#define ENH_NBLOCKS_EXTRA   5

Definition at line 82 of file iLBC_define.h.

ENH_NBLOCKS_TOT

#define ENH_NBLOCKS_TOT

Value:

                                          8   /* ENH_NBLOCKS +
                                          ENH_NBLOCKS_EXTRA */

Definition at line 83 of file iLBC_define.h.

ENH_OVERHANG

#define ENH_OVERHANG   2

Definition at line 71 of file iLBC_define.h.

ENH_PLOCSL

#define ENH_PLOCSL

Value:

                                          20  /* pitch-estimates and pitch-
                                          locations buffer length */

Definition at line 70 of file iLBC_define.h.

ENH_SLOP

#define ENH_SLOP

Value:

                                          2   /* max difference estimated and
                                          correct pitch period */

Definition at line 69 of file iLBC_define.h.

ENH_UPS0

#define ENH_UPS0   4 /* upsampling rate */

Definition at line 72 of file iLBC_define.h.

ENH_VECTL

#define ENH_VECTL   (ENH_BLOCKL+2*ENH_FL0)

Definition at line 74 of file iLBC_define.h.

EPS

#define EPS   (float)2.220446049250313e-016

Definition at line 106 of file iLBC_define.h.

FACTOR_DS

#define FACTOR_DS   2

Definition at line 91 of file iLBC_define.h.

FILTERORDER_DS

#define FILTERORDER_DS   7

Definition at line 89 of file iLBC_define.h.

FLOAT_MAX

#define FLOAT_MAX   (float)1.0e37

Definition at line 105 of file iLBC_define.h.

LPC_ASYMDIFF

#define LPC_ASYMDIFF   20

Definition at line 47 of file iLBC_define.h.

LPC_BW

#define LPC_BW   (float)60.0

Definition at line 48 of file iLBC_define.h.

LPC_CHIRP_SYNTDENUM

#define LPC_CHIRP_SYNTDENUM   (float)0.9025

Definition at line 41 of file iLBC_define.h.

LPC_CHIRP_WEIGHTDENUM

#define LPC_CHIRP_WEIGHTDENUM   (float)0.4222

Definition at line 42 of file iLBC_define.h.

LPC_FILTERORDER

#define LPC_FILTERORDER   10

Definition at line 40 of file iLBC_define.h.

LPC_HALFORDER

#define LPC_HALFORDER   (LPC_FILTERORDER/2)

Definition at line 52 of file iLBC_define.h.

LPC_LOOKBACK

#define LPC_LOOKBACK   60

Definition at line 43 of file iLBC_define.h.

LPC_N_20MS

#define LPC_N_20MS   1

Definition at line 44 of file iLBC_define.h.

LPC_N_30MS

#define LPC_N_30MS   2

Definition at line 45 of file iLBC_define.h.

LPC_N_MAX

#define LPC_N_MAX   2

Definition at line 46 of file iLBC_define.h.

LPC_WN

#define LPC_WN   (float)1.0001

Definition at line 49 of file iLBC_define.h.

LSF_NSPLIT

#define LSF_NSPLIT   3

Definition at line 50 of file iLBC_define.h.

LSF_NUMBER_OF_STEPS

#define LSF_NUMBER_OF_STEPS   4

Definition at line 51 of file iLBC_define.h.

MAX_SAMPLE

#define MAX_SAMPLE   32767

Definition at line 109 of file iLBC_define.h.

MIN_SAMPLE

#define MIN_SAMPLE   -32768

Definition at line 108 of file iLBC_define.h.

NASUB_20MS

#define NASUB_20MS   2

Definition at line 25 of file iLBC_define.h.

NASUB_30MS

#define NASUB_30MS   4

Definition at line 31 of file iLBC_define.h.

NASUB_MAX

#define NASUB_MAX   4

Definition at line 32 of file iLBC_define.h.

NO_OF_BYTES_20MS

#define NO_OF_BYTES_20MS   38

Definition at line 95 of file iLBC_define.h.

NO_OF_BYTES_30MS

#define NO_OF_BYTES_30MS   50

Definition at line 96 of file iLBC_define.h.

NO_OF_WORDS_20MS

#define NO_OF_WORDS_20MS   19

Definition at line 97 of file iLBC_define.h.

NO_OF_WORDS_30MS

#define NO_OF_WORDS_30MS   25

Definition at line 98 of file iLBC_define.h.

NSUB_20MS

#define NSUB_20MS   4

Definition at line 22 of file iLBC_define.h.

NSUB_30MS

#define NSUB_30MS   6

Definition at line 23 of file iLBC_define.h.

NSUB_MAX

#define NSUB_MAX   6

Definition at line 24 of file iLBC_define.h.

PI

#define PI   (float)3.14159265358979323846

Definition at line 107 of file iLBC_define.h.

PI2

#define PI2   (float)0.159154943

Definition at line 111 of file iLBC_define.h.

STATE_BITS

#define STATE_BITS   3

Definition at line 99 of file iLBC_define.h.

STATE_LEN

#define STATE_LEN   80

Definition at line 34 of file iLBC_define.h.

STATE_SHORT_LEN_20MS

#define STATE_SHORT_LEN_20MS   57

Definition at line 36 of file iLBC_define.h.

STATE_SHORT_LEN_30MS

#define STATE_SHORT_LEN_30MS   58

Definition at line 35 of file iLBC_define.h.

SUBL

#define SUBL   40

Definition at line 33 of file iLBC_define.h.

TWO_PI

#define TWO_PI   (float)6.283185307

Definition at line 110 of file iLBC_define.h.

ULP_CLASSES

#define ULP_CLASSES   3

Definition at line 101 of file iLBC_define.h.

Typedef Documentation

iLBC_Dec_Inst_t

typedef struct iLBC_Dec_Inst_t_ iLBC_Dec_Inst_t

iLBC_Enc_Inst_t

typedef struct iLBC_Enc_Inst_t_ iLBC_Enc_Inst_t

iLBC_ULP_Inst_t

typedef struct iLBC_ULP_Inst_t_ iLBC_ULP_Inst_t