const char *terminators, char *terminator,
uint32_t first_timeout, uint32_t digit_timeout, uint32_t abs_timeout);
+/*!
+ \brief play a file to the session while doing speech recognition.
+ \param session the session to play and detect on
+ \param file the path to the file
+ \param mod_name the module name of the ASR library
+ \param grammar the grammar text, URI, or local file name
+ \param result of speech recognition, allocated from the session pool
+ \return SWITCH_STATUS_SUCCESS if all is well
+*/
+SWITCH_DECLARE(switch_status_t) switch_ivr_play_and_detect_speech(switch_core_session_t *session,
+ const char *file,
+ const char *mod_name,
+ const char *grammar,
+ char **result);
+
/*!
\brief Engage background Speech detection on a session
\param session the session to attach
* Bret McDanel <trixter AT 0xdecafbad dot com>
* Luke Dashjr <luke@openmethods.com> (OpenMethods, LLC)
* Cesar Cepeda <cesar@auronix.com>
+ * Chris Rienzo <chris@rienzo.net>
*
* mod_dptools.c -- Raw Audio File Streaming Application Module
*
}
}
+#define PLAY_AND_DETECT_SPEECH_SYNTAX "<file> detect:<engine> {param1=val1,param2=val2}<grammar>"
+SWITCH_STANDARD_APP(play_and_detect_speech_function)
+{
+ switch_channel_t *channel = switch_core_session_get_channel(session);
+ char *argv[2];
+ char *lbuf = NULL;
+ const char *response = "DONE";
+ char *detect = NULL;
+
+ switch_channel_set_variable(channel, "detect_speech_result", "");
+
+ if (zstr(data) || !(lbuf = switch_core_session_strdup(session, data)) || !(detect = strstr(lbuf, "detect:"))) {
+ /* bad input */
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Usage: %s\n", PLAY_AND_DETECT_SPEECH_SYNTAX);
+ response = "USAGE ERROR";
+ goto done;
+ }
+
+ /* split input at "detect:" */
+ detect[0] = '\0';
+ detect += 7;
+ if (zstr(detect)) {
+ /* bad input */
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Usage: %s\n", PLAY_AND_DETECT_SPEECH_SYNTAX);
+ response = "USAGE ERROR";
+ goto done;
+ }
+
+ /* need to have at 2 parameters for detect */
+ if (switch_separate_string(detect, ' ', argv, (sizeof(argv) / sizeof(argv[0]))) == 2) {
+ char *file = lbuf;
+ char *engine = argv[0];
+ char *grammar = argv[1];
+ char *result = NULL;
+ switch_ivr_play_and_detect_speech(session, file, engine, grammar, &result);
+ switch_channel_set_variable(channel, "detect_speech_result", result);
+ } else {
+ /* bad input */
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Usage: %s\n", PLAY_AND_DETECT_SPEECH_SYNTAX);
+ response = "USAGE ERROR";
+ }
+
+done:
+ switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, response);
+}
#define SCHED_HEARTBEAT_SYNTAX "[0|<seconds>]"
SWITCH_STANDARD_APP(sched_heartbeat_function)
SWITCH_ADD_APP(app_interface, "remove_bugs", "Remove media bugs", "Remove all media bugs from a channel.", remove_bugs_function, "", SAF_NONE);
SWITCH_ADD_APP(app_interface, "break", "Break", "Set the break flag.", break_function, "", SAF_SUPPORT_NOMEDIA);
SWITCH_ADD_APP(app_interface, "detect_speech", "Detect speech", "Detect speech on a channel.", detect_speech_function, DETECT_SPEECH_SYNTAX, SAF_NONE);
+ SWITCH_ADD_APP(app_interface, "play_and_detect_speech", "Play and do speech recognition", "Play and do speech recognition", play_and_detect_speech_function, PLAY_AND_DETECT_SPEECH_SYNTAX, SAF_NONE);
SWITCH_ADD_APP(app_interface, "ivr", "Run an ivr menu", "Run an ivr menu.", ivr_application_function, "<menu_name>", SAF_NONE);
SWITCH_ADD_APP(app_interface, "redirect", "Send session redirect", "Send a redirect message to a session.", redirect_function, "<redirect_data>",
SAF_SUPPORT_NOMEDIA);
* Michael Jerris <mike@jerris.com>
* Bret McDanel <bret AT 0xdecafbad dot com>
* Luke Dashjr <luke@openmethods.com> (OpenMethods, LLC)
+ * Chris Rienzo <chris@rienzo.net>
*
* switch_ivr_async.c -- IVR Library (async operations)
*
return SWITCH_STATUS_SUCCESS;
}
+typedef struct {
+ int done;
+ char *result;
+} play_and_detect_speech_state_t;
+
+static switch_status_t play_and_detect_input_callback(switch_core_session_t *session, void *input, switch_input_type_t input_type, void *data, unsigned int len)
+{
+ play_and_detect_speech_state_t *state = (play_and_detect_speech_state_t *)data;
+ switch_event_t *event;
+ switch_channel_t *channel = switch_core_session_get_channel(session);
+ if (input_type == SWITCH_INPUT_TYPE_EVENT) {
+ event = (switch_event_t *)input;
+ if (event->event_id == SWITCH_EVENT_DETECTED_SPEECH && !state->done) {
+ const char *speech_type = switch_event_get_header(event, "Speech-Type");
+ if (!zstr(speech_type)) {
+ if (!strcasecmp(speech_type, "detected-speech")) {
+ const char *result;
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) DETECTED SPEECH\n", switch_channel_get_name(channel));
+ result = switch_event_get_body(event);
+ if (!zstr(result)) {
+ state->result = switch_core_session_strdup(session, result);
+ } else {
+ state->result = "";
+ }
+ state->done = 1;
+ return SWITCH_STATUS_BREAK;
+ } else if (!strcasecmp(speech_type, "begin-speaking")) {
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) START OF SPEECH\n", switch_channel_get_name(channel));
+ return SWITCH_STATUS_BREAK;
+ }
+ }
+ }
+ }
+ return SWITCH_STATUS_SUCCESS;
+}
+
+SWITCH_DECLARE(switch_status_t) switch_ivr_play_and_detect_speech(switch_core_session_t *session, const char *file, const char *mod_name, const char *grammar, char **result)
+{
+ switch_status_t status;
+ int recognizing = 0;
+ switch_input_args_t args = { 0 };
+ play_and_detect_speech_state_t state = { 0, "" };
+ switch_channel_t *channel = switch_core_session_get_channel(session);
+ if (result == NULL) {
+ goto done;
+ }
+
+ /* start speech detection */
+ if (switch_ivr_detect_speech(session, mod_name, grammar, grammar, NULL, NULL) != SWITCH_STATUS_SUCCESS) {
+ goto done;
+ }
+ recognizing = 1;
+
+ /* play the prompt, looking for detection result */
+ args.input_callback = play_and_detect_input_callback;
+ args.buf = &state;
+ args.buflen = sizeof(state);
+ status = switch_ivr_play_file(session, NULL, file, &args);
+ if (status != SWITCH_STATUS_BREAK && status != SWITCH_STATUS_SUCCESS) {
+ goto done;
+ }
+
+ /* wait for result if not done */
+ if (!state.done) {
+ switch_ivr_detect_speech_start_input_timers(session);
+ switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) WAITING FOR RESULT\n", switch_channel_get_name(channel));
+ while (!state.done && switch_channel_ready(channel)) {
+ status = switch_ivr_sleep(session, 5000, SWITCH_FALSE, &args);
+ if (status != SWITCH_STATUS_BREAK && status != SWITCH_STATUS_SUCCESS) {
+ goto done;
+ }
+ }
+ }
+ recognizing = !state.done;
+
+done:
+ if (recognizing) {
+ switch_ivr_pause_detect_speech(session);
+ }
+
+ *result = state.result;
+
+ if (!state.done) {
+ return SWITCH_STATUS_FALSE;
+ }
+ return SWITCH_STATUS_SUCCESS;
+}
struct speech_thread_handle {
switch_core_session_t *session;
projects / thirdparty / freeswitch.git / commitdiff
