int
ps_set_fsg(ps_decoder_t *ps, const char *name, fsg_model_t *fsg)
{
ps_search_t *search;
search = fsg_search_init(fsg, ps->config, ps->acmod, ps->dict, ps->d2p);
return set_search_internal(ps, name, search);
}
int
srch_FSG_init(kb_t * kb, /**< The KB */
void *srch /**< The pointer to a search structure */
)
{
srch_t *s;
fsg_search_t *fsgsrch;
word_fsg_t *wordfsg;
s = (srch_t *) srch;
/* This is very strange */
fsgsrch = fsg_search_init(NULL, s);
s->grh->graph_struct = fsgsrch;
s->grh->graph_type = GRAPH_STRUCT_GENGRAPH;
if ((wordfsg = srch_FSG_read_fsgfile(s, cmd_ln_str("-fsg"))) == NULL) {
E_INFO("Could not read wordfsg with file name %s\n",
cmd_ln_str("-fsg"));
return SRCH_FAILURE;
}
if (!fsg_search_set_current_fsg(fsgsrch, wordfsg->name)) {
E_INFO("Could not set the current fsg with name %s\n",
wordfsg->name);
return SRCH_FAILURE;
}
return SRCH_SUCCESS;
}
fsg_set_t *
ps_update_fsgset(ps_decoder_t *ps)
{
ps_search_t *search;
/* Look for FSG search. */
search = ps_find_search(ps, "fsg");
if (search == NULL) {
/* Initialize FSG search. */
search = fsg_search_init(ps->config,
ps->acmod, ps->dict, ps->d2p);
search->pls = ps->phone_loop;
ps->searches = glist_add_ptr(ps->searches, search);
}
else {
/* Tell FSG search to update its view of the world. */
if (ps_search_reinit(search, ps->dict, ps->d2p) < 0)
return NULL;
}
ps->search = search;
return (fsg_set_t *)search;
}
int
main(int argc, char *argv[])
{
ps_decoder_t *ps;
cmd_ln_t *config;
acmod_t *acmod;
fsg_search_t *fsgs;
jsgf_t *jsgf;
jsgf_rule_t *rule;
fsg_model_t *fsg;
ps_seg_t *seg;
ps_lattice_t *dag;
FILE *rawfh;
char const *hyp, *uttid;
int32 score, prob;
clock_t c;
int i;
TEST_ASSERT(config =
cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-dict", MODELDIR "/lm/en/turtle.dic",
"-input_endian", "little",
"-samprate", "16000", NULL));
TEST_ASSERT(ps = ps_init(config));
jsgf = jsgf_parse_file(DATADIR "/goforward.gram", NULL);
TEST_ASSERT(jsgf);
rule = jsgf_get_rule(jsgf, "<goforward.move2>");
TEST_ASSERT(rule);
fsg = jsgf_build_fsg(jsgf, rule, ps->lmath, 7.5);
TEST_ASSERT(fsg);
fsg_model_write(fsg, stdout);
ps_set_fsg(ps, "<goforward.move2>", fsg);
ps_set_search(ps, "<goforward.move2>");
acmod = ps->acmod;
fsgs = (fsg_search_t *) fsg_search_init(fsg, config, acmod, ps->dict, ps->d2p);
setbuf(stdout, NULL);
c = clock();
for (i = 0; i < 5; ++i) {
int16 buf[2048];
size_t nread;
int16 const *bptr;
int nfr;
int is_final;
TEST_ASSERT(rawfh = fopen(DATADIR "/goforward.raw", "rb"));
TEST_EQUAL(0, acmod_start_utt(acmod));
fsg_search_start(ps_search_base(fsgs));
is_final = FALSE;
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) {
fsg_search_step(ps_search_base(fsgs),
acmod->output_frame);
acmod_advance(acmod);
}
}
hyp = fsg_search_hyp(ps_search_base(fsgs), &score, &is_final);
printf("FSG: %s (%d) frame %d final %s\n", hyp, score, acmod->output_frame, is_final ? "FINAL" : "");
TEST_EQUAL (is_final, (acmod->output_frame > 170));
}
fsg_search_finish(ps_search_base(fsgs));
hyp = fsg_search_hyp(ps_search_base(fsgs), &score, NULL);
printf("FSG: %s (%d)\n", hyp, score);
TEST_ASSERT(acmod_end_utt(acmod) >= 0);
fclose(rawfh);
}
TEST_EQUAL(0, strcmp("go forward ten meters",
fsg_search_hyp(ps_search_base(fsgs), &score, NULL)));
ps->search = (ps_search_t *)fsgs;
for (seg = ps_seg_iter(ps, &score); seg;
seg = ps_seg_next(seg)) {
char const *word;
int sf, ef;
word = ps_seg_word(seg);
ps_seg_frames(seg, &sf, &ef);
printf("%s %d %d\n", word, sf, ef);
}
c = clock() - c;
printf("5 * fsg search in %.2f sec\n", (double)c / CLOCKS_PER_SEC);
dag = ps_get_lattice(ps);
ps_lattice_write(dag, "test_jsgf.lat");
jsgf_grammar_free(jsgf);
fsg_search_free(ps_search_base(fsgs));
ps_free(ps);
cmd_ln_free_r(config);
TEST_ASSERT(config =
cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-dict", MODELDIR "/lm/en/turtle.dic",
"-jsgf", DATADIR "/goforward.gram",
"-input_endian", "little",
"-samprate", "16000", NULL));
TEST_ASSERT(ps = ps_init(config));
TEST_ASSERT(rawfh = fopen(DATADIR "/goforward.raw", "rb"));
ps_decode_raw(ps, rawfh, "goforward", -1);
hyp = ps_get_hyp(ps, &score, &uttid);
prob = ps_get_prob(ps, &uttid);
printf("%s: %s (%d, %d)\n", uttid, hyp, score, prob);
TEST_EQUAL(0, strcmp("go forward ten meters", hyp));
ps_free(ps);
fclose(rawfh);
cmd_ln_free_r(config);
TEST_ASSERT(config =
cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-dict", MODELDIR "/lm/en/turtle.dic",
"-jsgf", DATADIR "/goforward.gram",
"-toprule", "goforward.move2",
"-input_endian", "little",
"-samprate", "16000", NULL));
TEST_ASSERT(ps = ps_init(config));
TEST_ASSERT(rawfh = fopen(DATADIR "/goforward.raw", "rb"));
ps_decode_raw(ps, rawfh, "goforward", -1);
hyp = ps_get_hyp(ps, &score, &uttid);
prob = ps_get_prob(ps, &uttid);
printf("%s: %s (%d, %d)\n", uttid, hyp, score, prob);
TEST_EQUAL(0, strcmp("go forward ten meters", hyp));
ps_free(ps);
cmd_ln_free_r(config);
fclose(rawfh);
TEST_ASSERT(config =
cmd_ln_init(NULL, ps_args(), TRUE,
"-hmm", MODELDIR "/hmm/en_US/hub4wsj_sc_8k",
"-dict", MODELDIR "/lm/en/turtle.dic",
"-jsgf", DATADIR "/defective.gram",
NULL));
TEST_ASSERT(NULL == ps_init(config));
cmd_ln_free_r(config);
return 0;
}
int
ps_reinit(ps_decoder_t *ps, cmd_ln_t *config)
{
char const *lmfile, *lmctl = NULL;
if (config && config != ps->config) {
cmd_ln_free_r(ps->config);
ps->config = config;
}
#ifndef _WIN32_WCE
/* Set up logging. */
if (cmd_ln_str_r(ps->config, "-logfn"))
err_set_logfile(cmd_ln_str_r(ps->config, "-logfn"));
#endif
err_set_debug_level(cmd_ln_int32_r(ps->config, "-debug"));
ps->mfclogdir = cmd_ln_str_r(ps->config, "-mfclogdir");
ps->rawlogdir = cmd_ln_str_r(ps->config, "-rawlogdir");
/* Fill in some default arguments. */
ps_init_defaults(ps);
/* Free old searches (do this before other reinit) */
ps_free_searches(ps);
/* Free old acmod. */
acmod_free(ps->acmod);
ps->acmod = NULL;
/* Free old dictionary (must be done after the two things above) */
dict_free(ps->dict);
ps->dict = NULL;
/* Logmath computation (used in acmod and search) */
if (ps->lmath == NULL
|| (logmath_get_base(ps->lmath) !=
(float64)cmd_ln_float32_r(ps->config, "-logbase"))) {
if (ps->lmath)
logmath_free(ps->lmath);
ps->lmath = logmath_init
((float64)cmd_ln_float32_r(ps->config, "-logbase"), 0,
cmd_ln_boolean_r(ps->config, "-bestpath"));
}
/* Acoustic model (this is basically everything that
* uttproc.c, senscr.c, and others used to do) */
if ((ps->acmod = acmod_init(ps->config, ps->lmath, NULL, NULL)) == NULL)
return -1;
/* Make the acmod's feature buffer growable if we are doing two-pass search. */
if (cmd_ln_boolean_r(ps->config, "-fwdflat")
&& cmd_ln_boolean_r(ps->config, "-fwdtree"))
acmod_set_grow(ps->acmod, TRUE);
if ((ps->pl_window = cmd_ln_int32_r(ps->config, "-pl_window"))) {
/* Initialize an auxiliary phone loop search, which will run in
* "parallel" with FSG or N-Gram search. */
if ((ps->phone_loop = phone_loop_search_init(ps->config,
ps->acmod, ps->dict)) == NULL)
return -1;
ps->searches = glist_add_ptr(ps->searches, ps->phone_loop);
}
/* Dictionary and triphone mappings (depends on acmod). */
/* FIXME: pass config, change arguments, implement LTS, etc. */
if ((ps->dict = dict_init(ps->config, ps->acmod->mdef)) == NULL)
return -1;
/* Determine whether we are starting out in FSG or N-Gram search mode. */
if (cmd_ln_str_r(ps->config, "-fsg") || cmd_ln_str_r(ps->config, "-jsgf")) {
ps_search_t *fsgs;
if ((ps->d2p = dict2pid_build(ps->acmod->mdef, ps->dict)) == NULL)
return -1;
if ((fsgs = fsg_search_init(ps->config, ps->acmod, ps->dict, ps->d2p)) == NULL)
return -1;
fsgs->pls = ps->phone_loop;
ps->searches = glist_add_ptr(ps->searches, fsgs);
ps->search = fsgs;
}
else if ((lmfile = cmd_ln_str_r(ps->config, "-lm"))
|| (lmctl = cmd_ln_str_r(ps->config, "-lmctl"))) {
ps_search_t *ngs;
if ((ps->d2p = dict2pid_build(ps->acmod->mdef, ps->dict)) == NULL)
return -1;
if ((ngs = ngram_search_init(ps->config, ps->acmod, ps->dict, ps->d2p)) == NULL)
return -1;
ngs->pls = ps->phone_loop;
ps->searches = glist_add_ptr(ps->searches, ngs);
ps->search = ngs;
}
/* Otherwise, we will initialize the search whenever the user
* decides to load an FSG or a language model. */
else {
if ((ps->d2p = dict2pid_build(ps->acmod->mdef, ps->dict)) == NULL)
return -1;
}
/* Initialize performance timer. */
ps->perf.name = "decode";
ptmr_init(&ps->perf);
return 0;
}
