/** Initiate recognition based on specified grammar and input file */
ASR_CLIENT_DECLARE(apt_bool_t) asr_session_file_recognize(
asr_session_t *asr_session,
const char *grammar_file,
const char *input_file)
{
const mrcp_app_message_t *app_message;
mrcp_message_t *mrcp_message;
app_message = NULL;
mrcp_message = define_grammar_message_create(asr_session,grammar_file);
if(!mrcp_message) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Create DEFINE-GRAMMAR Request");
return FALSE;
}
/* Send DEFINE-GRAMMAR request and wait for the response */
apr_thread_mutex_lock(asr_session->mutex);
if(mrcp_application_message_send(asr_session->mrcp_session,asr_session->mrcp_channel,mrcp_message) == TRUE) {
apr_thread_cond_wait(asr_session->wait_object,asr_session->mutex);
app_message = asr_session->app_message;
asr_session->app_message = NULL;
}
apr_thread_mutex_unlock(asr_session->mutex);
if(mrcp_response_check(app_message,MRCP_REQUEST_STATE_COMPLETE) == FALSE) {
return FALSE;
}
/* Reset prev recog result (if any) */
asr_session->recog_complete = NULL;
app_message = NULL;
mrcp_message = recognize_message_create(asr_session);
if(!mrcp_message) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Create RECOGNIZE Request");
return FALSE;
}
/* Send RECOGNIZE request and wait for the response */
apr_thread_mutex_lock(asr_session->mutex);
if(mrcp_application_message_send(asr_session->mrcp_session,asr_session->mrcp_channel,mrcp_message) == TRUE) {
apr_thread_cond_wait(asr_session->wait_object,asr_session->mutex);
app_message = asr_session->app_message;
asr_session->app_message = NULL;
}
apr_thread_mutex_unlock(asr_session->mutex);
if(mrcp_response_check(app_message,MRCP_REQUEST_STATE_INPROGRESS) == FALSE) {
return FALSE;
}
/* Open input file and start streaming */
asr_session->input_mode = INPUT_MODE_FILE;
if(asr_input_file_open(asr_session,input_file) == FALSE) {
return FALSE;
}
asr_session->streaming = TRUE;
return TRUE;
}
/** Initiate recognition based on specified grammar and input stream */
ASR_CLIENT_DECLARE(const char*) asr_session_stream_recognize(
asr_session_t *asr_session,
const char *grammar_file)
{
const mrcp_app_message_t *app_message;
mrcp_message_t *mrcp_message;
app_message = NULL;
mrcp_message = define_grammar_message_create(asr_session,grammar_file);
if(!mrcp_message) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Create DEFINE-GRAMMAR Request");
return NULL;
}
/* Send DEFINE-GRAMMAR request and wait for the response */
apr_thread_mutex_lock(asr_session->mutex);
if(mrcp_application_message_send(asr_session->mrcp_session,asr_session->mrcp_channel,mrcp_message) == TRUE) {
apr_thread_cond_wait(asr_session->wait_object,asr_session->mutex);
app_message = asr_session->app_message;
asr_session->app_message = NULL;
}
apr_thread_mutex_unlock(asr_session->mutex);
if(mrcp_response_check(app_message,MRCP_REQUEST_STATE_COMPLETE) == FALSE) {
return NULL;
}
/* Reset prev recog result (if any) */
asr_session->recog_complete = NULL;
app_message = NULL;
mrcp_message = recognize_message_create(asr_session);
if(!mrcp_message) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Create RECOGNIZE Request");
return NULL;
}
/* Send RECOGNIZE request and wait for the response */
apr_thread_mutex_lock(asr_session->mutex);
if(mrcp_application_message_send(asr_session->mrcp_session,asr_session->mrcp_channel,mrcp_message) == TRUE) {
apr_thread_cond_wait(asr_session->wait_object,asr_session->mutex);
app_message = asr_session->app_message;
asr_session->app_message = NULL;
}
apr_thread_mutex_unlock(asr_session->mutex);
if(mrcp_response_check(app_message,MRCP_REQUEST_STATE_INPROGRESS) == FALSE) {
return NULL;
}
/* Reset media buffer */
mpf_frame_buffer_restart(asr_session->media_buffer);
/* Set input mode and start streaming */
asr_session->input_mode = INPUT_MODE_STREAM;
asr_session->streaming = TRUE;
/* Wait for events either START-OF-INPUT or RECOGNITION-COMPLETE */
do {
apr_thread_mutex_lock(asr_session->mutex);
app_message = NULL;
if(apr_thread_cond_timedwait(asr_session->wait_object,asr_session->mutex, 60 * 1000000) != APR_SUCCESS) {
apr_thread_mutex_unlock(asr_session->mutex);
return NULL;
}
app_message = asr_session->app_message;
asr_session->app_message = NULL;
apr_thread_mutex_unlock(asr_session->mutex);
mrcp_message = mrcp_event_get(app_message);
if(mrcp_message && mrcp_message->start_line.method_id == RECOGNIZER_RECOGNITION_COMPLETE) {
asr_session->recog_complete = mrcp_message;
}
}
while(!asr_session->recog_complete);
/* Get results */
return nlsml_input_get(asr_session->recog_complete);
}
