int
ps_process_cep(ps_decoder_t *ps,
mfcc_t **data,
int32 n_frames,
int no_search,
int full_utt)
{
int n_searchfr = 0;
if (no_search)
acmod_set_grow(ps->acmod, TRUE);
while (n_frames) {
int nfr;
/* Process some data into features. */
if ((nfr = acmod_process_cep(ps->acmod, &data,
&n_frames, full_utt)) < 0)
return nfr;
/* Score and search as much data as possible */
if (no_search)
continue;
if ((nfr = ps_search_forward(ps)) < 0)
return nfr;
n_searchfr += nfr;
}
return n_searchfr;
}
int
ps_process_raw(ps_decoder_t *ps,
int16 const *data,
size_t n_samples,
int no_search,
int full_utt)
{
int n_searchfr = 0;
if (ps->acmod->state == ACMOD_IDLE) {
E_ERROR("Failed to process data, utterance is not started. Use start_utt to start it\n");
return 0;
}
if (no_search)
acmod_set_grow(ps->acmod, TRUE);
while (n_samples) {
int nfr;
/* Process some data into features. */
if ((nfr = acmod_process_raw(ps->acmod, &data,
&n_samples, full_utt)) < 0)
return nfr;
/* Score and search as much data as possible */
if (no_search)
continue;
if ((nfr = ps_search_forward(ps)) < 0)
return nfr;
n_searchfr += nfr;
}
return n_searchfr;
}
int
ps_end_utt(ps_decoder_t *ps)
{
int rv, i;
acmod_end_utt(ps->acmod);
/* Search any remaining frames. */
if ((rv = ps_search_forward(ps)) < 0) {
ptmr_stop(&ps->perf);
return rv;
}
/* Finish phone loop search. */
if (ps->phone_loop) {
if ((rv = ps_search_finish(ps->phone_loop)) < 0) {
ptmr_stop(&ps->perf);
return rv;
}
}
/* Search any frames remaining in the lookahead window. */
for (i = ps->acmod->output_frame - ps->pl_window;
i < ps->acmod->output_frame; ++i)
ps_search_step(ps->search, i);
/* Finish main search. */
if ((rv = ps_search_finish(ps->search)) < 0) {
ptmr_stop(&ps->perf);
return rv;
}
ptmr_stop(&ps->perf);
/* Log a backtrace if requested. */
if (cmd_ln_boolean_r(ps->config, "-backtrace")) {
char const *uttid, *hyp;
ps_seg_t *seg;
int32 score;
hyp = ps_get_hyp(ps, &score, &uttid);
if (hyp != NULL) {
E_INFO("%s: %s (%d)\n", uttid, hyp, score);
E_INFO_NOFN("%-20s %-5s %-5s %-5s %-10s %-10s %-3s\n",
"word", "start", "end", "pprob", "ascr", "lscr", "lback");
for (seg = ps_seg_iter(ps, &score); seg;
seg = ps_seg_next(seg)) {
char const *word;
int sf, ef;
int32 post, lscr, ascr, lback;
word = ps_seg_word(seg);
ps_seg_frames(seg, &sf, &ef);
post = ps_seg_prob(seg, &ascr, &lscr, &lback);
E_INFO_NOFN("%-20s %-5d %-5d %-1.3f %-10d %-10d %-3d\n",
word, sf, ef, logmath_exp(ps_get_logmath(ps), post),
ascr, lscr, lback);
}
}
}
return rv;
}
int
ps_decode_senscr(ps_decoder_t *ps, FILE *senfh)
{
int nfr, n_searchfr;
ps_start_utt(ps);
n_searchfr = 0;
acmod_set_insenfh(ps->acmod, senfh);
while ((nfr = acmod_read_scores(ps->acmod)) > 0) {
if ((nfr = ps_search_forward(ps)) < 0) {
ps_end_utt(ps);
return nfr;
}
n_searchfr += nfr;
}
ps_end_utt(ps);
acmod_set_insenfh(ps->acmod, NULL);
return n_searchfr;
}