switch_ivr interfaces to enable/disable grammar:…

switch_ivr interfaces to enable/disable grammar: switch_ivr_detect_speech_enable_grammar, switch_ivr_detect_speech_disable_grammar, and switch_ivr_detect_speech_disable_all_grammars

src/include/switch_ivr.h

@@ -26,6 +26,7 @@
  * Anthony Minessale II <anthm@freeswitch.org>
  * Neal Horman <neal at wanlink dot com>
  * Bret McDanel <trixter AT 0xdecafbad dot com>
+ * Luke Dashjr <luke@openmethods.com> (OpenMethods, LLC)
  *
  * switch_ivr.h -- IVR Library
  *
@@ -198,6 +199,29 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_load_grammar(switch_cor
 */
 SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_unload_grammar(switch_core_session_t *session, const char *name);
 
+/*!
+  \brief Enable a grammar on a background speech detection handle
+  \param session The session to change the grammar on
+  \param name the grammar name
+  \return SWITCH_STATUS_SUCCESS if all is well
+*/
+SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_enable_grammar(switch_core_session_t *session, const char *name);
+
+/*!
+  \brief Disable a grammar on a background speech detection handle
+  \param session The session to change the grammar on
+  \param name the grammar name
+  \return SWITCH_STATUS_SUCCESS if all is well
+*/
+SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_disable_grammar(switch_core_session_t *session, const char *name);
+
+/*!
+  \brief Disable all grammars on a background speech detection handle
+  \param session The session to change the grammar on
+  \return SWITCH_STATUS_SUCCESS if all is well
+*/
+SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_disable_all_grammars(switch_core_session_t *session);
+
 SWITCH_DECLARE(switch_status_t) switch_ivr_set_param_detect_speech(switch_core_session_t *session, const char *name, const char *val);
 
 /*!

src/switch_ivr_async.c

@@ -26,6 +26,7 @@
  * Anthony Minessale II <anthm@freeswitch.org>
  * Michael Jerris <mike@jerris.com>
  * Bret McDanel <bret AT 0xdecafbad dot com>
+ * Luke Dashjr <luke@openmethods.com> (OpenMethods, LLC)
  *
  * switch_ivr_async.c -- IVR Library (async operations)
  *
@@ -2745,6 +2746,57 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_unload_grammar(switch_c
 	return SWITCH_STATUS_FALSE;
 }
 
+SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_enable_grammar(switch_core_session_t *session, const char *name)
+{
+	switch_channel_t *channel = switch_core_session_get_channel(session);
+	switch_asr_flag_t flags = SWITCH_ASR_FLAG_NONE;
+	struct speech_thread_handle *sth = switch_channel_get_private(channel, SWITCH_SPEECH_KEY);
+	switch_status_t status;
+
+	if (sth) {
+		if ((status = switch_core_asr_enable_grammar(sth->ah, name)) != SWITCH_STATUS_SUCCESS) {
+			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Error enabling Grammar\n");
+			switch_core_asr_close(sth->ah, &flags);
+		}
+		return status;
+	}
+	return SWITCH_STATUS_FALSE;
+}
+
+SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_disable_grammar(switch_core_session_t *session, const char *name)
+{
+	switch_channel_t *channel = switch_core_session_get_channel(session);
+	switch_asr_flag_t flags = SWITCH_ASR_FLAG_NONE;
+	struct speech_thread_handle *sth = switch_channel_get_private(channel, SWITCH_SPEECH_KEY);
+	switch_status_t status;
+
+	if (sth) {
+		if ((status = switch_core_asr_disable_grammar(sth->ah, name)) != SWITCH_STATUS_SUCCESS) {
+			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Error disabling Grammar\n");
+			switch_core_asr_close(sth->ah, &flags);
+		}
+		return status;
+	}
+	return SWITCH_STATUS_FALSE;
+}
+
+SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_disable_all_grammars(switch_core_session_t *session)
+{
+	switch_channel_t *channel = switch_core_session_get_channel(session);
+	switch_asr_flag_t flags = SWITCH_ASR_FLAG_NONE;
+	struct speech_thread_handle *sth = switch_channel_get_private(channel, SWITCH_SPEECH_KEY);
+	switch_status_t status;
+
+	if (sth) {
+		if ((status = switch_core_asr_disable_all_grammars(sth->ah)) != SWITCH_STATUS_SUCCESS) {
+			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Error disabling all Grammars\n");
+			switch_core_asr_close(sth->ah, &flags);
+		}
+		return status;
+	}
+	return SWITCH_STATUS_FALSE;
+}
+
 SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech(switch_core_session_t *session,
 														 const char *mod_name,
 														 const char *grammar, const char *name, const char *dest, switch_asr_handle_t *ah)