void init_decod_ld8a(struct dec_state_t * state)
{
/* Initialize static pointer */
state->exc = state->old_exc + PIT_MAX + L_INTERPOL;
/* Static vectors to zero */
set_zero(state->old_exc, PIT_MAX+L_INTERPOL);
set_zero(state->mem_syn, M);
state->sharp = SHARPMIN;
state->old_t0 = 60;
state->gain_code = (F)0.0;
state->gain_pitch = (F)0.0;
lsp_decw_reset(&state->lsp_s);
init_exc_err(state->cng_s.exc_err); // ?
copy(lsp_reset, state->lsp_old, M);
/* for G.729B */
state->seed_fer = 21845;
state->past_ftyp = 1;
state->seed = INIT_SEED;
state->sid_sav = (F)0.;
init_lsfq_noise(&state->cng_s.lsfq_s); // ?
gain_past_reset(&state->gain_s);
state->bad_lsf = 0; /* Initialize bad LSF indicator */
}
void init_coder_ld8a(void)
{
/*----------------------------------------------------------------------*
* Initialize pointers to speech vector. *
* *
* *
* |--------------------|-------------|-------------|------------| *
* previous speech sf1 sf2 L_NEXT *
* *
* <---------------- Total speech vector (L_TOTAL) -----------> *
* <---------------- LPC analysis window (L_WINDOW) -----------> *
* | <-- present frame (L_FRAME) --> *
* old_speech | <-- new speech (L_FRAME) --> *
* p_window | | *
* speech | *
* new_speech *
*-----------------------------------------------------------------------*/
new_speech = old_speech + L_TOTAL - L_FRAME; /* New speech */
speech = new_speech - L_NEXT; /* Present frame */
p_window = old_speech + L_TOTAL - L_WINDOW; /* For LPC window */
printf("new_speech in init is:%d\n",new_speech);
/* Initialize static pointers */
wsp = old_wsp + PIT_MAX;
exc = old_exc + PIT_MAX + L_INTERPOL;
/* Static vectors to zero */
set_zero(old_speech, L_TOTAL);
set_zero(old_exc, PIT_MAX+L_INTERPOL);
set_zero(old_wsp, PIT_MAX);
set_zero(mem_w, M);
set_zero(mem_w0, M);
set_zero(mem_zero, M);
sharp = SHARPMIN;
copy(lsp_old, lsp_old_q, M);
lsp_encw_reset() ;
init_exc_err();
return;
}