static void gst_sphinx_sink_calibrate_chunk (GstSphinxSink *sphinxsink)
{
int result;
char *adbuf;
if (!sphinxsink->ad.calibrate_started) {
gst_sphinx_sink_send_message (sphinxsink, "calibration", NULL);
sphinxsink->ad.calibrate_started = TRUE;
}
result = cont_ad_calib_loop (sphinxsink->cont,
(int16 *)gst_adapter_peek(sphinxsink->adapter, REQUIRED_FRAME_BYTES),
REQUIRED_FRAME_SAMPLES);
if (result == 0) {
sphinxsink->ad.calibrated = TRUE;
sphinxsink->ad.listening = 0;
g_message ("Sending ready");
gst_sphinx_sink_send_message (sphinxsink, "ready", NULL);
}
}
static void gst_pocketsphinx_calibrate_chunk (GstPocketSphinx *sphinxsink)
{
int result;
if (!sphinxsink->ad.calibrate_started) {
g_signal_emit (sphinxsink,
gst_pocketsphinx_signals[SIGNAL_CALIBRATION], 0, NULL);
sphinxsink->ad.calibrate_started = TRUE;
}
result = cont_ad_calib_loop (sphinxsink->cont,
(int16 *)gst_adapter_peek(sphinxsink->adapter,
REQUIRED_FRAME_BYTES),
REQUIRED_FRAME_SAMPLES);
if (result == 0) {
sphinxsink->ad.calibrated = TRUE;
sphinxsink->ad.listening = 0;
g_signal_emit (sphinxsink,
gst_pocketsphinx_signals[SIGNAL_READY], 0, NULL);
}
}
int
main(int argc, char *argv[])
{
cont_ad_t *cont;
FILE *infp;
int16 buf[512];
int listening;
int k, n_calib_samp;
int16 *calib, *cptr;
TEST_ASSERT(infp = fopen(TESTDATADIR "/chan3.raw", "rb"));
TEST_ASSERT(cont = cont_ad_init(NULL, NULL));
n_calib_samp = cont_ad_calib_size(cont);
calib = ckd_malloc(n_calib_samp * 2);
printf("Reading %d calibration samples\n", n_calib_samp);
TEST_ASSERT(fread(calib, 2, n_calib_samp, infp) == n_calib_samp);
printf("Calibrating...\n");
TEST_EQUAL(0, cont_ad_calib_loop(cont, calib, n_calib_samp));
printf("Calibrated!\n");
listening = FALSE;
cptr = calib;
while (1) {
/* Use up the calibration samples first. */
if (n_calib_samp) {
k = n_calib_samp;
if (k > 512)
k = 512;
memcpy(buf, cptr, 512 * 2);
cptr += k;
n_calib_samp -= k;
if (k < 512)
k = fread(buf + k, 2, 512-k, infp);
}
else {
k = fread(buf, 2, 512, infp);
}
/* End of file. */
if (k < 256) { /* FIXME: It should do something useful with fewer samples. */
if (listening) {
printf("End of file at %.3f seconds\n",
(double)(cont->read_ts - k) / 16000);
}
break;
}
k = cont_ad_read(cont, buf, k);
if (cont->state == CONT_AD_STATE_SIL) {
/* Has there been enough silence to cut the utterance? */
if (listening && cont->seglen > 8000) {
printf("End of utterance at %.3f seconds\n",
(double)(cont->read_ts - k - cont->seglen) / 16000);
listening = FALSE;
}
}
else {
if (!listening) {
printf("Start of utterance at %.3f seconds\n",
(double)(cont->read_ts - k) / 16000);
listening = TRUE;
}
}
}
ckd_free(calib);
cont_ad_close(cont);
fclose(infp);
return 0;
}