Example #1
0
int
main(int argc, char *argv[])
{
	logmath_t *lmath;
	fsg_model_t *fsg;

	/* Initialize a logmath object to pass to fsg_model_read */
	lmath = logmath_init(1.0001, 0, 0);
	/* Read a FSG. */
	fsg = fsg_model_readfile(LMDIR "/goforward.fsg", lmath, 7.5);
	TEST_ASSERT(fsg);

	TEST_ASSERT(fsg_model_add_silence(fsg, "<sil>", -1, 0.3));
	TEST_ASSERT(fsg_model_add_silence(fsg, "++NOISE++", -1, 0.3));
	TEST_ASSERT(fsg_model_add_alt(fsg, "FORWARD", "FORWARD(2)"));

	fsg_model_write(fsg, stdout);

	/* Test reference counting. */
	TEST_ASSERT(fsg = fsg_model_retain(fsg));
	TEST_EQUAL(1, fsg_model_free(fsg));
	fsg_model_write(fsg, stdout);

	TEST_EQUAL(0, fsg_model_free(fsg));
	logmath_free(lmath);

	return 0;
}
Example #2
0
static int
process_fsgctl_line(ps_decoder_t *ps, cmd_ln_t *config, char const *fname)
{
    fsg_model_t *fsg;
    int err;
    char *path = NULL;
    const char *fsgdir = cmd_ln_str_r(config, "-fsgdir");
    const char *fsgext = cmd_ln_str_r(config, "-fsgext");

    if (fname == NULL)
        return 0;

    if (fsgdir)
        path = string_join(fsgdir, "/", fname, fsgext ? fsgext : "", NULL);
    else if (fsgext)
        path = string_join(fname, fsgext, NULL);
    else
        path = ckd_salloc(fname);

    fsg = fsg_model_readfile(path, ps_get_logmath(ps),
                                          cmd_ln_float32_r(config, "-lw"));
    err = 0;
    if (!fsg) {
        err = -1;
        goto error_out;
    }
    if (ps_set_fsg(ps, fname, fsg)) {
        err = -1;
        goto error_out;
    }

    E_INFO("Using FSG: %s\n", fname);
    if (ps_set_search(ps, fname))
        err = -1;

error_out:
    fsg_model_free(fsg);
    ckd_free(path);

    return err;
}
Example #3
0
int
ps_reinit(ps_decoder_t *ps, cmd_ln_t *config)
{
    const char *path;
    const char *keyphrase;
    int32 lw;

    if (config && config != ps->config) {
        cmd_ln_free_r(ps->config);
        ps->config = cmd_ln_retain(config);
    }

    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");
    ps->senlogdir = cmd_ln_str_r(ps->config, "-senlogdir");

    /* Fill in some default arguments. */
    ps_init_defaults(ps);

    /* Free old searches (do this before other reinit) */
    ps_free_searches(ps);
    ps->searches = hash_table_new(3, HASH_CASE_YES);

    /* 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;

    /* Free d2p */
    dict2pid_free(ps->d2p);
    ps->d2p = 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;

    if (cmd_ln_int32_r(ps->config, "-pl_window") > 0) {
        /* 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;
        hash_table_enter(ps->searches,
                         ckd_salloc(ps_search_name(ps->phone_loop)),
                         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, ps->acmod->lmath)) == NULL)
        return -1;
    if ((ps->d2p = dict2pid_build(ps->acmod->mdef, ps->dict)) == NULL)
        return -1;

    lw = cmd_ln_float32_r(config, "-lw");

    /* Determine whether we are starting out in FSG or N-Gram search mode.
     * If neither is used skip search initialization. */

    /* Load KWS if one was specified in config */
    if ((keyphrase = cmd_ln_str_r(config, "-keyphrase"))) {
        if (ps_set_keyphrase(ps, PS_DEFAULT_SEARCH, keyphrase))
            return -1;
        ps_set_search(ps, PS_DEFAULT_SEARCH);
    }

    if ((path = cmd_ln_str_r(config, "-kws"))) {
        if (ps_set_kws(ps, PS_DEFAULT_SEARCH, path))
            return -1;
        ps_set_search(ps, PS_DEFAULT_SEARCH);
    }

    /* Load an FSG if one was specified in config */
    if ((path = cmd_ln_str_r(config, "-fsg"))) {
        fsg_model_t *fsg = fsg_model_readfile(path, ps->lmath, lw);
        if (!fsg)
            return -1;
        if (ps_set_fsg(ps, PS_DEFAULT_SEARCH, fsg))
            return -1;
        ps_set_search(ps, PS_DEFAULT_SEARCH);
    }
    
    /* Or load a JSGF grammar */
    if ((path = cmd_ln_str_r(config, "-jsgf"))) {
        if (ps_set_jsgf_file(ps, PS_DEFAULT_SEARCH, path)
            || ps_set_search(ps, PS_DEFAULT_SEARCH))
            return -1;
    }

    if ((path = cmd_ln_str_r(ps->config, "-allphone"))) {
        if (ps_set_allphone_file(ps, PS_DEFAULT_SEARCH, path)
                || ps_set_search(ps, PS_DEFAULT_SEARCH))
                return -1;
    }

    if ((path = cmd_ln_str_r(ps->config, "-lm")) && 
        !cmd_ln_boolean_r(ps->config, "-allphone")) {
        if (ps_set_lm_file(ps, PS_DEFAULT_SEARCH, path)
            || ps_set_search(ps, PS_DEFAULT_SEARCH))
            return -1;
    }

    if ((path = cmd_ln_str_r(ps->config, "-lmctl"))) {
        const char *name;
        ngram_model_t *lmset;
        ngram_model_set_iter_t *lmset_it;

        if (!(lmset = ngram_model_set_read(ps->config, path, ps->lmath))) {
            E_ERROR("Failed to read language model control file: %s\n", path);
            return -1;
        }

        for(lmset_it = ngram_model_set_iter(lmset);
            lmset_it; lmset_it = ngram_model_set_iter_next(lmset_it)) {
            
            ngram_model_t *lm = ngram_model_set_iter_model(lmset_it, &name);            
            E_INFO("adding search %s\n", name);
            if (ps_set_lm(ps, name, lm)) {
    		ngram_model_free(lm);
                ngram_model_set_iter_free(lmset_it);
                return -1;
            }
	    ngram_model_free(lm);
        }

        name = cmd_ln_str_r(config, "-lmname");
        if (name)
            ps_set_search(ps, name);
        else {
            E_ERROR("No default LM name (-lmname) for `-lmctl'\n");
            return -1;
        }
    }

    /* Initialize performance timer. */
    ps->perf.name = "decode";
    ptmr_init(&ps->perf);

    return 0;
}