From fb15d2963c0388cab0d35dcea7dc9cb4de9073e0 Mon Sep 17 00:00:00 2001
From: "wn.jang" <wn.jang@samsung.com>
Date: Wed, 4 Sep 2019 20:44:49 +0900
Subject: [PATCH] [ACR-1450] Add to request vc-tts

Change-Id: Ic14941e62a511140fb5e2e5ce030fa6201e47dee
---
 client/vc.c                      |   8 +-
 include/voice_control.h          | 200 +++++++++++++++++++++++++++++++++------
 include/voice_control_common.h   |  52 +++++++++-
 include/voice_control_internal.h | 172 ---------------------------------
 4 files changed, 227 insertions(+), 205 deletions(-)

diff --git a/client/vc.c b/client/vc.c
index d4aa48c..677713e 100644
--- a/client/vc.c
+++ b/client/vc.c
@@ -2994,7 +2994,7 @@ int __vc_cb_tts_streaming(int utt_id, vc_tts_event_e event, char* buffer, int le
 	return ret;
 }
 
-int vc_tts_request(const char* text, const char* language, bool to_vcm, int* utt_id)
+int vc_tts_request(const char* text, const char* language, bool to_vc_manager, int* utt_id)
 {
 	vc_state_e state;
 	int ret = -1;
@@ -3031,12 +3031,12 @@ int vc_tts_request(const char* text, const char* language, bool to_vcm, int* utt
 		return VC_ERROR_INVALID_STATE;
 	}
 
-	SLOG(LOG_DEBUG, TAG_VCC, "@@@ tts request, pid(%d), text(%s), language(%s), to_vcm(%d)", pid, text, language, to_vcm);
+	SLOG(LOG_DEBUG, TAG_VCC, "@@@ tts request, pid(%d), text(%s), language(%s), to_vc_manager(%d)", pid, text, language, to_vc_manager);
 
 	int count = 0;
 	bool is_prepared = false;
 	do {
-		ret = vc_dbus_request_tts(pid, text, language, to_vcm, utt_id);
+		ret = vc_dbus_request_tts(pid, text, language, to_vc_manager, utt_id);
 		if (0 != ret) {
 			if (VC_ERROR_INVALID_PARAMETER == ret && false == is_prepared) {
 				vc_client_set_client_state(g_vc, VC_STATE_INITIALIZED);
@@ -3277,7 +3277,7 @@ int __vc_cb_utterance_status(int utt_id, int utt_status)
 
 	SLOG(LOG_DEBUG, TAG_VCC, "Utterance status callback is called");
 	vc_client_use_callback(g_vc);
-	callback(utt_id, (vc_tts_utterance_status_e)utt_status);
+	callback(utt_id, (vc_tts_utterance_status_e)utt_status, user_data);
 	vc_client_not_use_callback(g_vc);
 
 	return 0;
diff --git a/include/voice_control.h b/include/voice_control.h
index f46b5c0..c37d991 100644
--- a/include/voice_control.h
+++ b/include/voice_control.h
@@ -86,8 +86,8 @@ extern "C"
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @remarks If the function succeeds, @a vc must be released with vc_deinitialize().
- * @return @c 0 on success, 
+ * @remarks If the function succeeds, vc must be released with vc_deinitialize().
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_OUT_OF_MEMORY Out of memory
@@ -105,14 +105,14 @@ int vc_initialize(void);
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
  * @retval #VC_ERROR_OPERATION_FAILED Operation failure
  * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
  * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- * @see vc_deinitialize()
+ * @see vc_initialize()
  */
 int vc_deinitialize(void);
 
@@ -122,7 +122,7 @@ int vc_deinitialize(void);
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
@@ -141,7 +141,7 @@ int vc_prepare(void);
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
@@ -161,7 +161,7 @@ int vc_unprepare(void);
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] callback Callback function to invoke
  * @param[in] user_data The user data to be passed to the callback function
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -182,11 +182,11 @@ int vc_foreach_supported_languages(vc_supported_language_cb callback, void* user
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @remark If the function succeeds, @a language must be released with free() by you when you no longer need it.
+ * @remarks If the function succeeds, @a language must be released with free() by you when you no longer need it.
  * @param[out] language A language is specified as an ISO 3166 alpha-2 two letter country-code
  *                      followed by ISO 639-1 for the two-letter language code.
  *                      For example, "ko_KR" for Korean, "en_US" for American English
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -207,7 +207,7 @@ int vc_get_current_language(char** language);
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
  * @param[out] state The current state
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -225,7 +225,7 @@ int vc_get_state(vc_state_e* state);
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
  * @param[out] state The current state
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -250,7 +250,7 @@ int vc_get_service_state(vc_service_state_e* state);
  *          Therefore, the user can not set any commands same with the system commands.
  *          The @a vc_sys_cmd_list must be released using free() when it is no longer required.
  * @param[out] vc_sys_cmd_list System command list handle
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -275,7 +275,7 @@ int vc_get_system_command_list(vc_cmd_list_h* vc_sys_cmd_list);
  *          If the current language is "ja_JP"(Japanese) and the invocation name is "en_US", the invocation name will not be recognized.
  *          This function should be called before vc_set_command_list().
  * @param[in] name Invocation name that an application wants to be invoked by
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -346,7 +346,7 @@ int vc_unset_server_dialog(const char* app_id);
  * @param[in] disp_text Text to be displayed on the screen
  * @param[in] utt_text Text to be spoken
  * @param[in] auto_start A variable for setting whether the dialog session will be restarted automatically or not
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -367,7 +367,7 @@ int vc_request_dialog(const char* disp_text, const char* utt_text, bool auto_sta
  *          The matched commands of command list should be set and they should include type and command text at least.
  * @param[in] vc_cmd_list Command list handle
  * @param[in] type Command type
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -386,7 +386,7 @@ int vc_set_command_list(vc_cmd_list_h vc_cmd_list, int type);
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] type Command type
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -406,7 +406,7 @@ int vc_unset_command_list(int type);
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] callback Callback function to get recognition result
  * @param[in] user_data The user data to be passed to the callback function
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -425,7 +425,7 @@ int vc_get_result(vc_result_cb callback, void* user_data);
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] callback Callback function to register
  * @param[in] user_data The user data to be passed to the callback function
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -444,7 +444,7 @@ int vc_set_result_cb(vc_result_cb callback, void* user_data);
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
@@ -462,7 +462,7 @@ int vc_unset_result_cb(void);
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] callback Callback function to register
  * @param[in] user_data The user data to be passed to the callback function
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -481,7 +481,7 @@ int vc_set_service_state_changed_cb(vc_service_state_changed_cb callback, void*
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
@@ -500,7 +500,7 @@ int vc_unset_service_state_changed_cb(void);
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] callback Callback function to register
  * @param[in] user_data The user data to be passed to the callback function
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -519,7 +519,7 @@ int vc_set_state_changed_cb(vc_state_changed_cb callback, void* user_data);
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
@@ -538,7 +538,7 @@ int vc_unset_state_changed_cb(void);
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] callback Callback function to register
  * @param[in] user_data The user data to be passed to the callback function
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -557,7 +557,7 @@ int vc_set_current_language_changed_cb(vc_current_language_changed_cb callback,
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
@@ -576,7 +576,7 @@ int vc_unset_current_language_changed_cb(void);
  * @privilege %http://tizen.org/privilege/recorder
  * @param[in] callback Callback function to register
  * @param[in] user_data The user data to be passed to the callback function
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
@@ -595,7 +595,7 @@ int vc_set_error_cb(vc_error_cb callback, void* user_data);
  * @since_tizen @if MOBILE 2.4 @elseif WEARABLE 3.0 @endif
  * @privlevel public
  * @privilege %http://tizen.org/privilege/recorder
- * @return @c 0 on success, 
+ * @return @c 0 on success,
  *         otherwise a negative error value
  * @retval #VC_ERROR_NONE Successful
  * @retval #VC_ERROR_INVALID_STATE Invalid state
@@ -607,6 +607,152 @@ int vc_set_error_cb(vc_error_cb callback, void* user_data);
 int vc_unset_error_cb(void);
 
 
+/**
+ * @brief Requests to send TTS streaming data, asynchronously.
+ * @details Using this function, the developer can request text to speech to the framework.
+ *          When the developer requests the TTS with @a language, VC engine will send PCM data which is synthesized using VC engine's own persona.
+ *          If @a to_vc_manager is true, the synthesized PCM data will be delivered to the VC manager, otherwise it will be delivered to the VC client
+ *          For example, if @a text is "Alarm is set as 7 PM" and @a to_vc_manager is true, the PCM data corresponding "Alarm is set as 7 PM" will be delivered to VC manager client,
+ *          and then it will be spoken in VC manager. If @a to_vc_manager is false, you will receive PCM data through the vc_tts_streaming_cb() callback function if it was set using vc_tts_set_streaming_cb().
+ *          This function is executed asynchronously, so if there is an error while synthesizing, vc_error_cb() will be called.
+ * @since_tizen 5.5
+ * @privlevel @partner
+ * @privilege %http://tizen.org/privilege/voicecontrol.tts
+ * @param[in] text The text to be requested for TTS
+ * @param[in] language The language is specified as an ISO 3166 alpha-2 two-letter country code
+ *                     followed by ISO 639-1 for the two-letter language code.
+ *                     For example, "ko_KR" for Korean, "en_US" for American English
+ * @param[in] to_vc_manager The value for selection between VC client and VC manager\n
+ *                          If @c true, the synthesized PCM data will be delivered to the VC manager, otherwise it will be delivered to the VC client
+ * @param[out] utt_id The utterance id
+ * @return @c 0 on success,
+ *         otherwise a negative error value
+ * @retval #VC_ERROR_NONE Successful
+ * @retval #VC_ERROR_NOT_SUPPORTED Not supported
+ * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
+ * @retval #VC_ERROR_OPERATION_FAILED Operation failure
+ * @pre The state should be #VC_STATE_READY.
+ * @see vc_tts_cancel()
+ */
+int vc_tts_request(const char* text, const char* language, bool to_vc_manager, int* utt_id);
+
+
+/**
+ * @brief Requests to cancel TTS streaming data.
+ * @since_tizen 5.5
+ * @privlevel @partner
+ * @privilege %http://tizen.org/privilege/voicecontrol.tts
+ * @param[in] utt_id The utterance id
+ * @return @c 0 on success,
+ *         otherwise a negative error value
+ * @retval #VC_ERROR_NONE Successful
+ * @retval #VC_ERROR_NOT_SUPPORTED Not supported
+ * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
+ * @pre The state should be #VC_STATE_READY.
+ * @see vc_tts_request()
+ */
+int vc_tts_cancel(int utt_id);
+
+
+/**
+ * @brief Gets the TTS audio details.
+ * @details Using this function, the developer can get details of synthesized audio data which is requested by vc_tts_request() function.
+ * @since_tizen 5.5
+ * @privlevel @partner
+ * @privilege %http://tizen.org/privilege/voicecontrol.tts
+ * @param[out] rate The audio sampling rate
+ * @param[out] channel The audio channel
+ * @param[out] audio_type The audio type
+ * @return @c 0 on success,
+ *         otherwise a negative error value
+ * @retval #VC_ERROR_NONE Successful
+ * @retval #VC_ERROR_NOT_SUPPORTED Not supported
+ * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
+ * @pre The state should be #VC_STATE_READY.
+ */
+int vc_tts_get_synthesized_audio_details(int* rate, vc_audio_channel_e* channel, vc_audio_type_e* audio_type);
+
+
+/**
+ * @brief Sets the TTS streaming callback function.
+ * @since_tizen 5.5
+ * @privlevel @partner
+ * @privilege %http://tizen.org/privilege/voicecontrol.tts
+ * @param[in] callback The callback function
+ * @param[in] user_data The user data to be passed to the callback function
+ * @return @c 0 on success,
+ *         otherwise a negative error value
+ * @retval #VC_ERROR_NONE Successful
+ * @retval #VC_ERROR_NOT_SUPPORTED Not supported
+ * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
+ * @pre The state should be #VC_STATE_INITIALIZED.
+ */
+int vc_tts_set_streaming_cb(vc_tts_streaming_cb callback, void* user_data);
+
+
+/**
+ * @brief Unsets the TTS streaming callback function.
+ * @since_tizen 5.5
+ * @privlevel @partner
+ * @privilege %http://tizen.org/privilege/voicecontrol.tts
+ * @return @c 0 on success,
+ *         otherwise a negative error value
+ * @retval #VC_ERROR_NONE Successful
+ * @retval #VC_ERROR_NOT_SUPPORTED Not supported
+ * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
+ * @pre The state should be #VC_STATE_INITIALIZED.
+ */
+int vc_tts_unset_streaming_cb(void);
+
+
+/**
+ * @brief Sets the TTS utterance status callback function.
+ * @details Using this function, the developer can set the utterance status callback to be called
+ *          when the VC manager client starts or stops playing TTS PCM data which was requested to be synthesized with the vc_tts_request() function.
+ *          This function is called when @a to_vc_manager in the vc_tts_request() function call is true.
+ * @since_tizen 5.5
+ * @privlevel @partner
+ * @privilege %http://tizen.org/privilege/voicecontrol.tts
+ * @param[in] callback The callback function
+ * @param[in] user_data The user data to be passed to the callback function
+ * @return @c 0 on success,
+ *         otherwise a negative error value
+ * @retval #VC_ERROR_NONE Successful
+ * @retval #VC_ERROR_NOT_SUPPORTED Not supported
+ * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
+ * @retval #VC_ERROR_OPERATION_FAILED Operation failure
+ * @pre The state should be #VC_STATE_INITIALIZED.
+ */
+int vc_tts_set_utterance_status_cb(vc_tts_utterance_status_cb callback, void* user_data);
+
+
+/**
+ * @brief Unsets the TTS utterance status callback function.
+ * @since_tizen 5.5
+ * @privlevel @partner
+ * @privilege %http://tizen.org/privilege/voicecontrol.tts
+ * @return @c 0 on success,
+ *         otherwise a negative error value
+ * @retval #VC_ERROR_NONE Successful
+ * @retval #VC_ERROR_NOT_SUPPORTED Not supported
+ * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
+ * @pre The state should be #VC_STATE_INITIALIZED.
+ */
+int vc_tts_unset_utterance_status_cb(void);
+
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/voice_control_common.h b/include/voice_control_common.h
index 4bf4ba1..136e628 100644
--- a/include/voice_control_common.h
+++ b/include/voice_control_common.h
@@ -103,7 +103,7 @@ typedef enum {
 } vc_audio_type_e;
 
 /**
- * @brief Enumerations for audio channels
+ * @brief Enumerations for audio channels.
  * @since_tizen 5.0
  */
 typedef enum {
@@ -112,7 +112,7 @@ typedef enum {
 } vc_audio_channel_e;
 
 /**
- * @brief Enumeration for TTS feedback events
+ * @brief Enumeration for TTS feedback events.
  * @since_tizen 5.0
  */
 typedef enum {
@@ -122,6 +122,27 @@ typedef enum {
 	VC_FEEDBACK_EVENT_FINISH = 3	/**< Finish event */
 } vc_feedback_event_e;
 
+/**
+ * @brief Enumeration for requested TTS events.
+ * @since_tizen 5.5
+ */
+typedef enum {
+	VC_TTS_EVENT_FAIL = -1,    /**< Failed */
+	VC_TTS_EVENT_START = 1,    /**< Start event */
+	VC_TTS_EVENT_CONTINUE = 2, /**< Continue event */
+	VC_TTS_EVENT_FINISH = 3    /**< Finish event */
+} vc_tts_event_e;
+
+/**
+ * @brief Enumeration for requested TTS utterance status events.
+ * @since_tizen 5.5
+ */
+typedef enum {
+	VC_TTS_UTTERANCE_NONE = -1,	/**< None */
+	VC_TTS_UTTERANCE_STARTED = 1,	/**< Utterance started */
+	VC_TTS_UTTERANCE_COMPLETED = 2,	/**< Utterance completed */
+	VC_TTS_UTTERANCE_CANCELED = 3	/**< Utterance canceled */
+} vc_tts_utterance_status_e;
 
 /**
  * @brief Called when client gets the recognition result.
@@ -200,6 +221,33 @@ typedef void (*vc_service_state_changed_cb)(vc_service_state_e previous, vc_serv
 typedef void (*vc_error_cb)(vc_error_e reason, void *user_data);
 
 
+/**
+ * @brief Called when the client receives TTS streaming data from the VC engine service.
+ * @since_tizen 5.5
+ * @remarks The @a buffer must be released with free() by you when you no longer need it.
+ * @param[in] event The TTS event
+ * @param[in] buffer The TTS streaming data
+ * @param[in] len The length of the TTS streaming data
+ * @param[in] utt_id The utterance id
+ * @param[in] user_data The user data passed from the callback registration function
+ * @pre The application registers the callback function using vc_tts_set_streaming_cb().
+ * @see vc_tts_set_streaming_cb()
+ */
+typedef void (*vc_tts_streaming_cb)(vc_tts_event_e event, char* buffer, int len, int utt_id, void *user_data);
+
+
+/**
+ * @brief Called when the client receives the TTS utterance status.
+ * @since_tizen 5.5
+ * @param[in] utt_id The utterance id
+ * @param[in] status The new TTS utterance status (e.g. #VC_TTS_UTTERANCE_STARTED, #VC_TTS_UTTERANCE_COMPLETED, and so on)
+ * @param[in] user_data The user data passed from the callback registration function
+ * @pre The application registers the callback function using vc_tts_set_utterance_status_cb().
+ * @see vc_tts_set_utterance_status_cb()
+ */
+typedef void (*vc_tts_utterance_status_cb)(int utt_id, vc_tts_utterance_status_e status, void *user_data);
+
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/voice_control_internal.h b/include/voice_control_internal.h
index 131c7e5..2e117b7 100644
--- a/include/voice_control_internal.h
+++ b/include/voice_control_internal.h
@@ -26,20 +26,6 @@ extern "C"
 {
 #endif
 
-typedef enum {
-	VC_TTS_EVENT_FAIL = -1,    /**< Failed */
-	VC_TTS_EVENT_START = 1,    /**< Start event */
-	VC_TTS_EVENT_CONTINUE = 2, /**< Continue event */
-	VC_TTS_EVENT_FINISH = 3    /**< Finish event */
-} vc_tts_event_e;
-
-typedef enum {
-	VC_TTS_UTTERANCE_NONE = -1,
-	VC_TTS_UTTERANCE_STARTED = 1,
-	VC_TTS_UTTERANCE_COMPLETED = 2,
-	VC_TTS_UTTERANCE_CANCELED = 3
-} vc_tts_utterance_status_e;
-
 
 /**
  * @brief Called when client gets the asr recognition result from vc-daemon.
@@ -58,39 +44,6 @@ typedef enum {
 typedef bool (*vc_asr_result_cb)(vc_result_event_e event, const char* result, void *user_data);
 
 /**
- * @brief Called when client gets TTS streaming data from vc engine service.
- * @since_tizen 4.0
- *
- * @remarks The @a buffer must be released with free() by you when you no longer need it.
- *
- * @param[in] event The TTS event
- * @param[in] buffer The TTS streaming data
- * @param[in] len The length of the TTS streaming data
- * @param[in] utt_id The utterance id
- * @param[in] user_data The user data passed from the callback registration function
- *
- * @pre An application registers callback function using vc_tts_set_streaming_cb().
- *
- * @see vc_tts_set_streaming_cb()
- * @see vc_tts_unset_streaming_cb()
- */
-typedef void (*vc_tts_streaming_cb)(vc_tts_event_e event, char* buffer, int len, int utt_id, void *user_data);
-
-/**
- * @brief Called when client gets TTS utterance status.
- * @since_tizen 4.0
- *
- * @param[in] utt_id The utterance id
- * @param[in] status The TTS utterance status (e.g. #VC_TTS_UTTERANCE_STARTED, #VC_TTS_UTTERANCE_COMPLETED, and so on)
- *
- * @pre An application registers callback function using vc_tts_set_utterance_status_cb().
- *
- * @see vc_tts_set_utterance_status_cb()
- * @see vc_tts_unset_utterance_status_cb()
- */
-typedef void (*vc_tts_utterance_status_cb)(int utt_id, vc_tts_utterance_status_e  status);
-
-/**
  * @brief Sets command list from file.
  * @since_tizen 3.0
  * @privlevel public
@@ -134,131 +87,6 @@ int vc_set_command_list_from_file(const char* file_path, int type);
  */
 int vc_prepare_sync(void);
 
-/**
- * @brief Requests to send TTS streaming data.
- * @since_tizen 4.0
- *
- * @param[in] text The text to be requested for TTS
- * @param[in] language The language for TTS
- * @param[in] to_vcm A value whether the TTS request is from vc client or vc manager
- * @param[in] utt_id The utterance id
- *
- * @return 0 on success, otherwise a negative error value
- * @retval #VC_ERROR_NONE Successful
- * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
- * @retval #VC_ERROR_INVALID_STATE Invalid state
- * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
- * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- *
- * @pre The state should be #VC_STATE_READY.
- *
- * @see vc_tts_cancel()
- */
-int vc_tts_request(const char* text, const char* language, bool to_vcm, int* utt_id);
-
-/**
- * @brief Requests to cancel TTS streaming data.
- * @since_tizen 4.0
- *
- * @param[in] utt_id The utterance id
- *
- * @return 0 on success, otherwise a negative error value
- * @retval #VC_ERROR_NONE Successful
- * @retval #VC_ERROR_INVALID_STATE Invalid state
- * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
- * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- *
- * @pre The state should be #VC_STATE_READY.
- *
- * @see vc_tts_request()
- */
-int vc_tts_cancel(int utt_id);
-
-/**
- * @brief Gets TTS audio format.
- * @since_tizen 4.0
- *
- * @param[out] rate The audio sampling rate
- * @param[out] channel The audio channel
- * @param[out] audio_type The audio type
- *
- * @return 0 on success, otherwise a negative error value
- * @retval #VC_ERROR_NONE Successful
- * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
- * @retval #VC_ERROR_INVALID_STATE Invalid state
- * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
- * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- *
- * @pre The state should be #VC_STATE_READY.
- */
-int vc_tts_get_audio_format(int* rate, vc_audio_channel_e* channel, vc_audio_type_e* audio_type);
-
-/**
- * @brief Sets TTS streaming callback function.
- * @since_tizen 4.0
- *
- * @param[in] callback The callback function
- * @param[in] user_data The user data to be passed to the callback function
- *
- * @return 0 on success, otherwise a negative error value
- * @retval #VC_ERROR_NONE Successful
- * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
- * @retval #VC_ERROR_INVALID_STATE Invalid state
- * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
- * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- *
- * @pre The state should be #VC_STATE_INITIALIZED.
- */
-int vc_tts_set_streaming_cb(vc_tts_streaming_cb callback, void* user_data);
-
-/**
- * @brief Unsets TTS streaming callback function.
- * @since_tizen 4.0
- *
- * @return 0 on success, otherwise a negative error value
- * @retval #VC_ERROR_NONE Successful
- * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
- * @retval #VC_ERROR_INVALID_STATE Invalid state
- * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
- * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- *
- * @pre The state should be #VC_STATE_INITIALIZED.
- */
-int vc_tts_unset_streaming_cb(void);
-
-/**
- * @brief Sets TTS utterance status callback function.
- * @since_tizen 4.0
- *
- * @param[in] callback The callback function
- * @param[in] user_data The user data to be passed to the callback function
- *
- * @return 0 on success, otherwise a negative error value
- * @retval #VC_ERROR_NONE Successful
- * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
- * @retval #VC_ERROR_INVALID_STATE Invalid state
- * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
- * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- *
- * @pre The state should be #VC_STATE_INITIALIZED.
- */
-int vc_tts_set_utterance_status_cb(vc_tts_utterance_status_cb callback, void* user_data);
-
-/**
- * @brief Unsets TTS utterance status callback function.
- * @since_tizen 4.0
- *
- * @return 0 on success, otherwise a negative error value
- * @retval #VC_ERROR_NONE Successful
- * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
- * @retval #VC_ERROR_INVALID_STATE Invalid state
- * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
- * @retval #VC_ERROR_NOT_SUPPORTED Not supported
- *
- * @pre The state should be #VC_STATE_INITIALIZED.
- */
-int vc_tts_unset_utterance_status_cb(void);
-
 
 #ifdef __cplusplus
 }
-- 
2.7.4