ref: 0d060442250e7966087cc4e1678cf46ea5978671
dir: /src/cg/cst_cg_load_voice.c/
/*************************************************************************/
/* */
/* Language Technologies Institute */
/* Carnegie Mellon University */
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/*************************************************************************/
/* Author: Alok Parlikar (aup@cs.cmu.edu) */
/* Date: April 2010 */
/*************************************************************************/
/* */
/* Load a clustergen voice from a file */
/* */
/*************************************************************************/
#include "flite.h"
#include "cst_cg.h"
#include "cst_cg_map.h"
cst_lexicon *cg_init_lang_lex(cst_voice *vox,
const cst_lang *lang_table,
const char *language)
{
cst_lexicon *lex = NULL;
int i;
/* Search Lang table for lang_init() and lex_init(); */
for (i=0; lang_table[i].lang; i++)
{
if (cst_streq(language,lang_table[i].lang))
{
(lang_table[i].lang_init)(vox);
lex = (lang_table[i].lex_init)();
break;
}
}
/* NULL if lang/lex not found */
return lex;
}
cst_voice *cst_cg_load_voice(const char *filename,
const cst_lang *lang_table)
{
cst_voice *vox;
cst_lexicon *lex = NULL;
int end_of_features;
const char *language;
const char *xname;
cst_val *secondary_langs;
const cst_val *sc;
cst_cg_db *cg_db;
char* fname;
char* fval;
cst_file vd;
int byteswapped = 0;
int r;
vd = cst_fopen(filename,CST_OPEN_READ);
if (vd == NULL)
{
cst_errmsg("Error load voice: can't open file %s\n",filename);
return NULL;
}
r = cst_cg_read_header(vd);
if (r == CST_CG_BYTESWAPPED_VOICE)
byteswapped = 1;
else if (r != 0)
{
cst_errmsg("Error load voice: %s does not have expected header\n",filename);
cst_fclose(vd);
return NULL;
}
vox = new_voice();
/* Read voice features from the external file */
/* Read until the feature is "end_of_features" */
fname=NULL;
end_of_features = 0;
while (end_of_features == 0)
{
cst_read_voice_feature(vd,&fname, &fval,byteswapped);
if (cst_streq(fname,"end_of_features"))
end_of_features = 1;
else
{
xname = feat_own_string(vox->features,fname);
flite_feat_set_string(vox->features,xname, fval);
}
cst_free(fname);
cst_free(fval);
}
/* Load up cg_db from external file */
cg_db = cst_cg_load_db(vox,vd,byteswapped);
if (cg_db == NULL)
{
cst_fclose(vd);
return NULL;
}
/* Use the language feature to initialize the correct voice */
language = flite_get_param_string(vox->features, "language", "");
/* Some languages require initialization of more than one language */
/* e.g. Indic languages require English initialization too */
/* We initialize the secondary languages first so our last init is */
/* the primary language */
secondary_langs =
val_readlist_string(flite_get_param_string(vox->features,
"secondary_languages",""));
for (sc = secondary_langs; sc; sc=val_cdr(sc))
{
cg_init_lang_lex(vox,lang_table,val_string(val_car(sc)));
}
delete_val(secondary_langs);
/* Init primary language */
lex = cg_init_lang_lex(vox,lang_table,language);
if (lex == NULL)
{ /* Language is not supported */
/* Delete allocated memory in cg_db */
cst_cg_free_db(vd,cg_db);
cst_fclose(vd);
cst_errmsg("Error load voice: lang/lex %s not supported in this binary\n",language);
return NULL;
}
/* Things that weren't filled in already. */
vox->name = cg_db->name;
flite_feat_set_string(vox->features,"name",cg_db->name);
flite_feat_set_string(vox->features,"pathname",filename);
flite_feat_set(vox->features,"lexicon",lexicon_val(lex));
flite_feat_set(vox->features,"postlex_func",uttfunc_val(lex->postlex));
/* No standard segment durations are needed as its done at the */
/* HMM state level */
flite_feat_set_string(vox->features,"no_segment_duration_model","1");
flite_feat_set_string(vox->features,"no_f0_target_model","1");
/* Waveform synthesis */
flite_feat_set(vox->features,"wave_synth_func",uttfunc_val(&cg_synth));
flite_feat_set(vox->features,"cg_db",cg_db_val(cg_db));
flite_feat_set_int(vox->features,"sample_rate",cg_db->sample_rate);
cst_fclose(vd);
return vox;
}
void cst_cg_unload_voice(cst_voice *vox,cst_val *voice_list)
{
delete_voice(vox);
}