static int
phone_loop_search_start(ps_search_t *search)
{
phone_loop_search_t *pls = (phone_loop_search_t *)search;
int i;
/* Reset and enter all phone HMMs. */
for (i = 0; i < pls->n_phones; ++i) {
hmm_t *hmm = (hmm_t *)&pls->phones[i];
hmm_clear(hmm);
hmm_enter(hmm, 0, -1, 0);
}
phone_loop_search_free_renorm(pls);
pls->best_score = 0;
return 0;
}
void
ngram_fwdflat_start(ngram_search_t *ngs)
{
root_chan_t *rhmm;
int i;
ptmr_reset(&ngs->fwdflat_perf);
ptmr_start(&ngs->fwdflat_perf);
build_fwdflat_wordlist(ngs);
build_fwdflat_chan(ngs);
ngs->bpidx = 0;
ngs->bss_head = 0;
for (i = 0; i < ps_search_n_words(ngs); i++)
ngs->word_lat_idx[i] = NO_BP;
/* Reset the permanently allocated single-phone words, since they
* may have junk left over in them from previous searches. */
for (i = 0; i < ngs->n_1ph_words; i++) {
int32 w = ngs->single_phone_wid[i];
rhmm = (root_chan_t *) ngs->word_chan[w];
hmm_clear(&rhmm->hmm);
}
/* Start search with <s>; word_chan[<s>] is permanently allocated */
rhmm = (root_chan_t *) ngs->word_chan[ps_search_start_wid(ngs)];
hmm_enter(&rhmm->hmm, 0, NO_BP, 0);
ngs->active_word_list[0][0] = ps_search_start_wid(ngs);
ngs->n_active_word[0] = 1;
ngs->best_score = 0;
ngs->renormalized = FALSE;
for (i = 0; i < ps_search_n_words(ngs); i++)
ngs->last_ltrans[i].sf = -1;
if (!ngs->fwdtree)
ngs->n_frame = 0;
ngs->st.n_fwdflat_chan = 0;
ngs->st.n_fwdflat_words = 0;
ngs->st.n_fwdflat_word_transition = 0;
ngs->st.n_senone_active_utt = 0;
}
void
hmm_init(hmm_context_t *ctx, hmm_t *hmm, int mpx,
int32 ssid, s3tmatid_t tmatid)
{
hmm->ctx = ctx;
hmm->mpx = mpx;
hmm->n_emit_state = ctx->n_emit_state;
if (mpx) {
hmm->s.mpx_ssid = ckd_calloc(hmm_n_emit_state(hmm), sizeof(*hmm->s.mpx_ssid));
memset(hmm->s.mpx_ssid, -1, sizeof(*hmm->s.mpx_ssid) * hmm_n_emit_state(hmm));
hmm->s.mpx_ssid[0] = ssid;
}
else {
hmm->s.ssid = ssid;
}
hmm->tmatid = tmatid;
hmm_clear(hmm);
}
static int
phone_loop_search_start(ps_search_t *search)
{
phone_loop_search_t *pls = (phone_loop_search_t *)search;
int i;
/* Reset and enter all phone HMMs. */
for (i = 0; i < pls->n_phones; ++i) {
hmm_t *hmm = (hmm_t *)&pls->hmms[i];
hmm_clear(hmm);
hmm_enter(hmm, 0, -1, 0);
}
memset(pls->penalties, 0, pls->n_phones * sizeof(*pls->penalties));
for (i = 0; i < pls->window; i++)
memset(pls->pen_buf[i], 0, pls->n_phones * sizeof(*pls->pen_buf[i]));
phone_loop_search_free_renorm(pls);
pls->best_score = 0;
pls->pen_buf_ptr = 0;
return 0;
}
void
hmm_init(hmm_context_t *ctx, hmm_t *hmm, int mpx, int ssid, int tmatid)
{
hmm->ctx = ctx;
hmm->mpx = mpx;
hmm->n_emit_state = ctx->n_emit_state;
if (mpx) {
int i;
hmm->ssid = BAD_SSID;
hmm->senid[0] = ssid;
for (i = 1; i < hmm_n_emit_state(hmm); ++i) {
hmm->senid[i] = BAD_SSID;
}
}
else {
hmm->ssid = ssid;
memcpy(hmm->senid, ctx->sseq[ssid], hmm->n_emit_state * sizeof(*hmm->senid));
}
hmm->tmatid = tmatid;
hmm_clear(hmm);
}
void
fsg_psubtree_pnode_deactivate(fsg_pnode_t * pnode)
{
hmm_clear(&pnode->hmm);
}
