/*************************************************************************
*
* Function: lpc_init
*
**************************************************************************
*/
int lpc_init (lpcState **state)
{
lpcState* s;
if (state == (lpcState **) NULL){
fprintf(stderr, "lpc_init: invalid parameter\n");
return -1;
}
*state = NULL;
/* allocate memory */
if ((s= (lpcState *) malloc(sizeof(lpcState))) == NULL){
fprintf(stderr, "lpc_init: can not malloc state structure\n");
return -1;
}
s->levinsonSt = NULL;
/* Init sub states */
if (Levinson_init(&s->levinsonSt)) {
lpc_exit(&s);
return -1;
}
lpc_reset(s);
*state = s;
return 0;
}
/*************************************************************************
*
* Function: lpc_init
*
**************************************************************************
*/
int lpc_init (lpcState *state)
{
if (state == (lpcState *) NULL){
fprintf(stderr, "lpc_init: invalid parameter\n");
return -1;
}
/* Init sub states */
if (Levinson_init(&state->levinsonSt)) {
lpc_reset(state);
return -1;
}
lpc_reset(state);
return 0;
}
/*
**************************************************************************
*
* Function : cod_amr_reset
* Purpose : Resets state memory
*
**************************************************************************
*/
int cod_amr_reset (cod_amrState *st)
{
Word16 i;
if (st == (cod_amrState *) NULL){
fprintf(stderr, "cod_amr_reset: invalid parameter\n");
return -1;
}
/*-----------------------------------------------------------------------*
* Initialize pointers to speech vector. *
*-----------------------------------------------------------------------*/
st->new_speech = st->old_speech + L_TOTAL - L_FRAME; /* New speech */
st->speech = st->new_speech - L_NEXT; /* Present frame */
st->p_window = st->old_speech + L_TOTAL - L_WINDOW; /* For LPC window */
st->p_window_12k2 = st->p_window - L_NEXT; /* EFR LPC window: no lookahead */
/* Initialize static pointers */
st->wsp = st->old_wsp + PIT_MAX;
st->exc = st->old_exc + PIT_MAX + L_INTERPOL;
st->zero = st->ai_zero + MP1;
st->error = st->mem_err + M;
st->h1 = &st->hvec[L_SUBFR];
/* Static vectors to zero */
Set_zero(st->old_speech, L_TOTAL);
Set_zero(st->old_exc, PIT_MAX + L_INTERPOL);
Set_zero(st->old_wsp, PIT_MAX);
Set_zero(st->mem_syn, M);
Set_zero(st->mem_w, M);
Set_zero(st->mem_w0, M);
Set_zero(st->mem_err, M);
Set_zero(st->zero, L_SUBFR);
Set_zero(st->hvec, L_SUBFR); /* set to zero "h1[-L_SUBFR..-1]" */
/* OL LTP states */
for (i = 0; i < 5; i++)
{
st->old_lags[i] = 40;
}
/* Reset lpc states */
lpc_reset(st->lpcSt);
/* Reset lsp states */
lsp_reset(st->lspSt);
/* Reset clLtp states */
cl_ltp_reset(st->clLtpSt);
gainQuant_reset(st->gainQuantSt);
p_ol_wgh_reset(st->pitchOLWghtSt);
ton_stab_reset(st->tonStabSt);
#ifndef VAD2
vad1_reset(st->vadSt);
#else
vad2_reset(st->vadSt);
#endif
dtx_enc_reset(st->dtx_encSt);
st->sharp = SHARPMIN;
return 0;
}
