#include "proto.h"
#include "unproto.h"

Classes
struct	gsm_state
Defines
#define	MIN_WORD (-32767 - 1)
#define	MAX_WORD 32767
#define	MIN_LONGWORD (-2147483647 - 1)
#define	MAX_LONGWORD 2147483647
#define	SASR(x, by) ((x) >= 0 ? (x) >> (by) : (~(-((x) + 1) >> (by))))
#define	GSM_MULT_R(a, b)
#define	GSM_MULT(a, b)
#define	GSM_L_MULT(a, b)
#define	GSM_L_ADD(a, b)
#define	GSM_ADD(a, b)
#define	GSM_SUB(a, b)
#define	GSM_ABS(a) ((a) < 0 ? ((a) == MIN_WORD ? MAX_WORD : -(a)) : (a))
Typedefs
typedef short	word
typedef long	longword
typedef unsigned short	uword
typedef unsigned long	ulongword
Functions
word gsm_mult	P ((word a, word b))
word gsm_div	P ((word num, word denum))
longword gsm_L_add	P ((longword a, longword b))
word gsm_abs	P ((word a))
word gsm_norm	P ((longword a))
longword gsm_L_asl	P ((longword a, int n))
word gsm_asl	P ((word a, int n))
void Gsm_Coder	P ((struct gsm_state S, word s, word LARc, word Nc, word bc, word Mc, word xmaxc, word xMc))
void Gsm_Long_Term_Predictor	P ((struct gsm_state S, word d, word dp, word e, word dpp, word Nc, word *bc))
void Gsm_LPC_Analysis	P ((struct gsm_state S, word s, word *LARc))
void Gsm_Preprocess	P ((struct gsm_state S, word s, word *so))
void Gsm_Encoding	P ((struct gsm_state S, word e, word ep, word xmaxc, word Mc, word xMc))
void Gsm_Short_Term_Analysis_Filter	P ((struct gsm_state S, word LARc, word *d))
void Gsm_Decoder	P ((struct gsm_state S, word LARcr, word Ncr, word bcr, word Mcr, word xmaxcr, word xMcr, word s))
void Gsm_Decoding	P ((struct gsm_state S, wordxmaxcr, word Mcr, word xMcr, word *erp))
void Gsm_Long_Term_Synthesis_Filtering	P ((struct gsm_state S, word Ncr, word bcr, word erp, word *drp))
void Gsm_RPE_Decoding	P ((struct gsm_state S, word xmaxcr, word Mcr, word xMcr, word *erp))
void Gsm_RPE_Encoding	P ((struct gsm_state S, word e, word xmaxc, word Mc, word *xMc))
void Gsm_Short_Term_Synthesis_Filter	P ((struct gsm_state S, word LARcr, word drp, word s))
void Gsm_Update_of_reconstructed_short_time_residual_signal	P ((word dpp, word ep, word *dp))
void gsm_debug_words	P ((char name, int, int, word ))
void gsm_debug_longwords	P ((char name, int, int, longword ))
void gsm_debug_longword	P ((char *name, longword))
void gsm_debug_word	P ((char *name, word))
Variables
word	gsm_A [8]
word	gsm_B [8]
word	gsm_MIC [8]
word	gsm_MAC [8]
word	gsm_INVA [8]
word	gsm_DLB [4]
word	gsm_QLB [4]
word	gsm_H [11]
word	gsm_NRFAC [8]
word	gsm_FAC [8]

Define Documentation

#define GSM_ABS ( a ) ((a) < 0 ? ((a) == MIN_WORD ? MAX_WORD : -(a)) : (a))

#define GSM_ADD	(	a,
		b
	)

Value:

((ulongword)((ltmp = (longword)(a) + (longword)(b)) - MIN_WORD) > \
                MAX_WORD - MIN_WORD ? (ltmp > 0 ? MAX_WORD : MIN_WORD) : ltmp)

#define GSM_L_ADD	(	a,
		b
	)

Value:

( (a) <  0 ? ( (b) >= 0 ? (a) + (b)     \
                 : (utmp = (ulongword)-((a) + 1) + (ulongword)-((b) + 1)) \
                   >= MAX_LONGWORD ? MIN_LONGWORD : -(longword)utmp-2 )   \
        : ((b) <= 0 ? (a) + (b)   \
                  : (utmp = (ulongword)(a) + (ulongword)(b)) >= MAX_LONGWORD \
                    ? MAX_LONGWORD : utmp))

#define GSM_L_MULT	(	a,
		b
	)

Value:

/* word a, word b */    \
        (((longword)(a) * (longword)(b)) << 1)

#define GSM_MULT	(	a,
		b
	)

Value:

/* word a, word b, !(a == b == MIN_WORD) */     \
        (SASR( ((longword)(a) * (longword)(b)), 15 ))

#define GSM_MULT_R	(	a,
		b
	)

Value:

/* word a, word b, !(a == b == MIN_WORD) */     \
        (SASR( ((longword)(a) * (longword)(b) + 16384), 15 ))

#define GSM_SUB	(	a,
		b
	)

Value:

((ltmp = (longword)(a) - (longword)(b)) >= MAX_WORD \
        ? MAX_WORD : ltmp <= MIN_WORD ? MIN_WORD : ltmp)

#define MAX_LONGWORD 2147483647

#define MAX_WORD 32767

#define MIN_LONGWORD (-2147483647 - 1)

#define MIN_WORD (-32767 - 1)

#define SASR	(	x,
		by
	)	((x) >= 0 ? (x) >> (by) : (~(-((x) + 1) >> (by))))

Typedef Documentation

typedef long longword

typedef unsigned long ulongword

typedef unsigned short uword

typedef short word

Function Documentation

word gsm_sub P ( (word a, word b) )

void gsm_debug_word P ( (char *name, word) )

void gsm_debug_longword P ( (char *name, longword) )

void gsm_debug_longwords P ( (char *name, int, int, longword *) )

void gsm_debug_words P ( (char *name, int, int, word *) )

void Gsm_Update_of_reconstructed_short_time_residual_signal P ( (word *dpp, word *ep, word *dp) )

void Gsm_Short_Term_Synthesis_Filter P ( (struct gsm_state *S, word *LARcr, word *drp, word *s) )

void Gsm_RPE_Encoding P ( (struct gsm_state *S, word *e, word *xmaxc, word *Mc, word *xMc) )

void Gsm_RPE_Decoding P ( (struct gsm_state *S, word xmaxcr, word Mcr, word *xMcr, word *erp) )

void Gsm_Long_Term_Synthesis_Filtering P ( (struct gsm_state *S, word Ncr, word bcr, word *erp, word *drp) )

void Gsm_Decoding P ( (struct gsm_state *S, wordxmaxcr, word Mcr, word *xMcr, word *erp) )

void Gsm_Decoder P ( (struct gsm_state *S, word *LARcr, word *Ncr, word *bcr, word *Mcr, word *xmaxcr, word *xMcr, word *s) )

void Gsm_Short_Term_Analysis_Filter P ( (struct gsm_state *S, word *LARc, word *d) )

void Gsm_Encoding P ( (struct gsm_state *S, word *e, word *ep, word *xmaxc, word *Mc, word *xMc) )

void Gsm_Preprocess P ( (struct gsm_state *S, word *s, word *so) )

void Gsm_LPC_Analysis P ( (struct gsm_state *S, word *s, word *LARc) )

void Gsm_Long_Term_Predictor P ( (struct gsm_state *S, word *d, word *dp, word *e, word *dpp, word *Nc, word *bc) )

void Gsm_Coder P ( (struct gsm_state *S, word *s, word *LARc, word *Nc, word *bc, word *Mc, word *xmaxc, word *xMc) )

word gsm_asr P ( (word a, int n) )

longword gsm_L_asr P ( (longword a, int n) )

word gsm_norm P ( (longword a) )

word gsm_abs P ( (word a) )

longword gsm_L_sub P ( (longword a, longword b) )

word gsm_div P ( (word num, word denum) )

Variable Documentation

word gsm_A[8]

word gsm_B[8]

word gsm_DLB[4]

word gsm_FAC[8]

word gsm_H[11]

word gsm_INVA[8]

word gsm_MAC[8]

word gsm_MIC[8]

word gsm_NRFAC[8]

word gsm_QLB[4]

private.h File Reference

Classes

Defines

Typedefs

Functions

Variables

Define Documentation

Typedef Documentation

Function Documentation

Variable Documentation