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;
}
static void
do_search(ps_search_t *search, acmod_t *acmod)
{
FILE *rawfh;
int16 buf[2048];
size_t nread;
int16 const *bptr;
int nfr;
TEST_ASSERT(rawfh = fopen(DATADIR "/goforward.raw", "rb"));
TEST_EQUAL(0, acmod_start_utt(acmod));
ps_search_start(search);
while (!feof(rawfh)) {
nread = fread(buf, sizeof(*buf), 2048, rawfh);
bptr = buf;
while ((nfr = acmod_process_raw(acmod, &bptr, &nread, FALSE)) > 0) {
while (acmod->n_feat_frame > 0) {
ps_search_step(search, acmod->output_frame);
acmod_advance(acmod);
}
}
}
ps_search_finish(search);
TEST_ASSERT(acmod_end_utt(acmod) >= 0);
fclose(rawfh);
}
int
main(int argc, char *argv[])
{
ps_decoder_t *ps;
cmd_ln_t *config;
acmod_t *acmod;
ps_search_t *ngs, *pls;
clock_t c;
int32 score;
int i;
TEST_ASSERT(config =
cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-lm", MODELDIR "/lm/en_US/wsj0vp.5000.DMP",
"-dict", MODELDIR "/lm/en_US/cmu07a.dic",
"-fwdtree", "yes",
"-fwdflat", "no",
"-bestpath", "no",
"-pl_window", "6",
"-input_endian", "little",
"-samprate", "16000", NULL));
TEST_ASSERT(ps = ps_init(config));
ngs = ps->search;
pls = ps->phone_loop;
acmod = ps->acmod;
setbuf(stdout, NULL);
c = clock();
for (i = 0; i < 5; ++i) {
FILE *rawfh;
int16 buf[2048];
size_t nread;
int16 const *bptr;
int nfr, n_searchfr;
TEST_ASSERT(rawfh = fopen(DATADIR "/goforward.raw", "rb"));
TEST_EQUAL(0, acmod_start_utt(acmod));
ps_search_start(ngs);
ps_search_start(pls);
n_searchfr = 0;
while (!feof(rawfh)) {
nread = fread(buf, sizeof(*buf), 2048, rawfh);
bptr = buf;
while ((nfr = acmod_process_raw(acmod, &bptr, &nread, FALSE)) > 0) {
while (acmod->n_feat_frame > 0) {
ps_search_step(pls, n_searchfr);
if (n_searchfr >= 6)
ps_search_step(ngs, n_searchfr - 6);
acmod_advance(acmod);
++n_searchfr;
}
}
}
for (nfr = n_searchfr - 6; nfr < n_searchfr; ++nfr) {
ps_search_step(ngs, nfr);
}
ps_search_finish(pls);
ps_search_finish(ngs);
printf("%s\n", ps_search_hyp(ngs, &score));
TEST_ASSERT(acmod_end_utt(acmod) >= 0);
fclose(rawfh);
}
printf("%s\n", ps_search_hyp(ngs, &score));
TEST_EQUAL(0, strcmp("go forward ten years", ps_search_hyp(ngs, &score)));
c = clock() - c;
printf("5 * fwdtree search in %.2f sec\n",
(double)c / CLOCKS_PER_SEC);
ps_free(ps);
return 0;
}
