2 * Copyright (c) 2011-2014 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
28 * @addtogroup CAPI_UIX_TTS_MODULE
37 * @brief Enumeration for error code.
38 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
41 TTS_ERROR_NONE = TIZEN_ERROR_NONE, /**< Successful */
42 TTS_ERROR_OUT_OF_MEMORY = TIZEN_ERROR_OUT_OF_MEMORY, /**< Out of Memory */
43 TTS_ERROR_IO_ERROR = TIZEN_ERROR_IO_ERROR, /**< I/O error */
44 TTS_ERROR_INVALID_PARAMETER = TIZEN_ERROR_INVALID_PARAMETER,/**< Invalid parameter */
45 TTS_ERROR_OUT_OF_NETWORK = TIZEN_ERROR_NETWORK_DOWN, /**< Network is down */
46 TTS_ERROR_TIMED_OUT = TIZEN_ERROR_TIMED_OUT, /**< No answer from the daemon */
47 TTS_ERROR_PERMISSION_DENIED = TIZEN_ERROR_PERMISSION_DENIED,/**< Permission denied */
48 TTS_ERROR_NOT_SUPPORTED = TIZEN_ERROR_NOT_SUPPORTED, /**< TTS NOT supported */
49 TTS_ERROR_INVALID_STATE = TIZEN_ERROR_TTS | 0x01, /**< Invalid state */
50 TTS_ERROR_INVALID_VOICE = TIZEN_ERROR_TTS | 0x02, /**< Invalid voice */
51 TTS_ERROR_ENGINE_NOT_FOUND = TIZEN_ERROR_TTS | 0x03, /**< No available engine */
52 TTS_ERROR_OPERATION_FAILED = TIZEN_ERROR_TTS | 0x04, /**< Operation failed */
53 TTS_ERROR_AUDIO_POLICY_BLOCKED = TIZEN_ERROR_TTS | 0x05 /**< Audio policy blocked */
57 * @brief Enumeration for TTS mode.
58 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
61 TTS_MODE_DEFAULT = 0, /**< Default mode for normal application */
62 TTS_MODE_NOTIFICATION = 1, /**< Notification mode */
63 TTS_MODE_SCREEN_READER = 2 /**< Accessibiliity mode */
67 * @brief Enumerations for state.
68 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
71 TTS_STATE_CREATED = 0, /**< 'CREATED' state */
72 TTS_STATE_READY = 1, /**< 'READY' state */
73 TTS_STATE_PLAYING = 2, /**< 'PLAYING' state */
74 TTS_STATE_PAUSED = 3 /**< 'PAUSED' state*/
78 * @brief Definitions for automatic speaking speed.
79 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
81 #define TTS_SPEED_AUTO 0
84 * @brief Definitions for automatic voice type.
85 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
87 #define TTS_VOICE_TYPE_AUTO 0
90 * @brief Definitions for male voice type.
91 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
93 #define TTS_VOICE_TYPE_MALE 1
96 * @brief Definitions for female voice type.
97 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
99 #define TTS_VOICE_TYPE_FEMALE 2
102 * @brief Definitions for child voice type.
103 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
105 #define TTS_VOICE_TYPE_CHILD 3
108 * @brief The TTS handle.
109 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
111 typedef struct tts_s *tts_h;
115 * @brief Called when the state of TTS is changed.
116 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
118 * @details If the daemon must stop player because of changing engine and
119 * the daemon must pause player because of other requests, this callback function is called.
121 * @param[in] tts The TTS handle
122 * @param[in] previous The previous state
123 * @param[in] current The current state
124 * @param[in] user_data The user data passed from the callback registration function
126 * @pre An application registers this callback using tts_set_state_changed_cb() to detect changing state.
128 * @see tts_set_state_changed_cb()
129 * @see tts_unset_state_changed_cb()
131 typedef void (*tts_state_changed_cb)(tts_h tts, tts_state_e previous, tts_state_e current, void* user_data);
134 * @brief Called when utterance has started.
135 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
137 * @param[in] tts The TTS handle
138 * @param[in] utt_id The utterance ID passed from the add text function
139 * @param[in] user_data The user data passed from the callback registration function
141 * @pre An application registers this callback using tts_set_utterance_started_cb() to detect utterance started.
143 * @see tts_add_text()
144 * @see tts_set_utterance_started_cb()
145 * @see tts_unset_utterance_started_cb()
147 typedef void (*tts_utterance_started_cb)(tts_h tts, int utt_id, void* user_data);
150 * @brief Called when utterance is finished.
151 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
153 * @param[in] tts The TTS handle
154 * @param[in] utt_id The utterance ID passed from the add text function
155 * @param[in] user_data The user data passed from the callback registration function
157 * @pre An application registers this callback using tts_set_utterance_completed_cb() to detect utterance completed.
159 * @see tts_add_text()
160 * @see tts_set_utterance_completed_cb()
161 * @see tts_unset_utterance_completed_cb()
163 typedef void (*tts_utterance_completed_cb)(tts_h tts, int utt_id, void *user_data);
166 * @brief Called when an error occurs.
167 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
169 * @param[in] tts The TTS handle
170 * @param[in] utt_id The utterance ID passed from the add text function
171 * @param[in] reason The error code
172 * @param[in] user_data The user data passed from the callback registration function
174 * @pre An application registers this callback using tts_set_error_cb() to detect error.
179 * @see tts_set_error_cb()
180 * @see tts_unset_error_cb()
182 typedef void (*tts_error_cb)(tts_h tts, int utt_id, tts_error_e reason, void* user_data);
185 * @brief Called to retrieve the supported voice.
186 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
188 * @param[in] tts The TTS handle
189 * @param[in] language Language 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)
190 * @param[in] voice_type A voice type (e.g. #TTS_VOICE_TYPE_MALE, #TTS_VOICE_TYPE_FEMALE)
191 * @param[in] user_data The user data passed from the foreach function
193 * @return @c true to continue with the next iteration of the loop, \n @c false to break out of the loop
194 * @pre tts_foreach_supported_voices() will invoke this callback function.
196 * @see tts_foreach_supported_voices()
198 typedef bool(*tts_supported_voice_cb)(tts_h tts, const char* language, int voice_type, void* user_data);
201 * @brief Called when the default voice is changed.
202 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
204 * @param[in] tts The TTS handle
205 * @param[in] previous_language The previous language
206 * @param[in] previous_voice_type The previous voice type
207 * @param[in] current_language The current language
208 * @param[in] current_voice_type The current voice type
209 * @param[in] user_data The user data passed from the callback registration function
211 * @see tts_set_default_voice_changed_cb()
213 typedef void (*tts_default_voice_changed_cb)(tts_h tts, const char* previous_language, int previous_voice_type,
214 const char* current_language, int current_voice_type, void* user_data);
218 * @brief Creates a handle for TTS.
219 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
221 * @remarks If the function succeeds, @a tts handle must be released with tts_destroy().
223 * @param[out] tts The TTS handle
225 * @return 0 on success, otherwise a negative error value
226 * @retval #TTS_ERROR_NONE Successful
227 * @retval #TTS_ERROR_OUT_OF_MEMORY Out of memory
228 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
229 * @retval #TTS_ERROR_ENGINE_NOT_FOUND Engine not found
230 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
231 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
233 * @post If this function is called, the TTS state will be #TTS_STATE_CREATED.
237 int tts_create(tts_h* tts);
240 * @brief Destroys the handle and disconnects the daemon.
241 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
243 * @param[in] tts The TTS handle
245 * @return 0 on success, otherwise a negative error value
246 * @retval #TTS_ERROR_NONE Successful
247 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
248 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
249 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
253 int tts_destroy(tts_h tts);
256 * @brief Sets the TTS mode.
257 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
259 * @param[in] tts The TTS handle
260 * @param[in] mode The mode
262 * @return 0 on success, otherwise a negative error value
263 * @retval #TTS_ERROR_NONE Successful
264 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
265 * @retval #TTS_ERROR_INVALID_STATE Invalid state
266 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
267 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
269 * @pre The state should be #TTS_STATE_CREATED.
271 * @see tts_get_mode()
273 int tts_set_mode(tts_h tts, tts_mode_e mode);
276 * @brief Gets the TTS mode.
277 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
279 * @param[in] tts The TTS handle
280 * @param[out] mode The mode
282 * @return 0 on success, otherwise a negative error value
283 * @retval #TTS_ERROR_NONE Successful
284 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
285 * @retval #TTS_ERROR_INVALID_STATE Invalid state
286 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
288 * @pre The state should be #TTS_STATE_CREATED.
290 * @see tts_set_mode()
292 int tts_get_mode(tts_h tts, tts_mode_e* mode);
295 * @brief Connects the daemon asynchronously.
296 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
298 * @param[in] tts The TTS handle
300 * @return 0 on success, otherwise a negative error value
301 * @retval #TTS_ERROR_NONE Successful
302 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
303 * @retval #TTS_ERROR_INVALID_STATE Invalid state
304 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
306 * @pre The state should be #TTS_STATE_CREATED.
307 * @post If this function is successful, the TTS state will be #TTS_STATE_READY. \n
308 * If this function is failed, the error callback is called. (e.g. #TTS_ERROR_ENGINE_NOT_FOUND)
310 * @see tts_unprepare()
312 int tts_prepare(tts_h tts);
315 * @brief Disconnects the daemon.
316 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
318 * @param[in] tts The TTS handle
320 * @return 0 on success, otherwise a negative error value
321 * @retval #TTS_ERROR_NONE Successful
322 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
323 * @retval #TTS_ERROR_INVALID_STATE Invalid state
324 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
326 * @pre The state should be #TTS_STATE_READY.
327 * @post If this function is called, the TTS state will be #TTS_STATE_CREATED.
331 int tts_unprepare(tts_h tts);
334 * @brief Retrieves all supported voices of the current engine using callback function.
335 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
337 * @param[in] tts The TTS handle
338 * @param[in] callback The callback function to invoke
339 * @param[in] user_data The user data to be passed to the callback function
341 * @return 0 on success, otherwise a negative error value
342 * @retval #TTS_ERROR_NONE Successful
343 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
344 * @retval #TTS_ERROR_ENGINE_NOT_FOUND Engine not found
345 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
346 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
348 * @post This function invokes tts_supported_voice_cb() repeatedly for getting voices.
350 * @see tts_get_default_voice()
352 int tts_foreach_supported_voices(tts_h tts, tts_supported_voice_cb callback, void* user_data);
355 * @brief Gets the default voice set by the user.
356 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
358 * @remarks If the function succeeds, @a language must be released with free().
360 * @param[in] tts The TTS handle
361 * @param[out] language Language 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)
362 * @param[out] voice_type The voice type
364 * @return 0 on success, otherwise a negative error value
365 * @retval #TTS_ERROR_NONE Successful
366 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
367 * @retval #TTS_ERROR_ENGINE_NOT_FOUND Engine not found
368 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
369 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
371 * @see tts_foreach_supported_voices()
373 int tts_get_default_voice(tts_h tts, char** language, int* voice_type);
376 * @brief Gets the maximum byte size for text.
377 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
379 * @param[in] tts The TTS handle
380 * @param[out] size The maximum byte size for text
382 * @return 0 on success, otherwise a negative error value
383 * @retval #TTS_ERROR_NONE Successful
384 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
385 * @retval #TTS_ERROR_INVALID_STATE Invalid state
386 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
388 * @pre The state should be #TTS_STATE_READY.
390 * @see tts_add_text()
392 int tts_get_max_text_size(tts_h tts, unsigned int* size);
395 * @brief Gets the current state of TTS.
396 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
398 * @param[in] tts The TTS handle
399 * @param[out] state The current state of TTS
401 * @return 0 on success, otherwise a negative error value
402 * @retval #TTS_ERROR_NONE Successful
403 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
404 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
410 int tts_get_state(tts_h tts, tts_state_e* state);
413 * @brief Gets the speed range.
414 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
416 * @param[in] tts The TTS handle
417 * @param[out] min The minimun speed value
418 * @param[out] normal The normal speed value
419 * @param[out] max The maximum speed value
421 * @return 0 on success, otherwise a negative error value
422 * @retval #TTS_ERROR_NONE Successful
423 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
424 * @retval #TTS_ERROR_INVALID_STATE Invalid state
425 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
426 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
428 * @pre The state should be #TTS_STATE_CREATED.
430 * @see tts_add_text()
432 int tts_get_speed_range(tts_h tts, int* min, int* normal, int* max);
435 * @brief Gets the current error message.
438 * @remarks This function should be called during an tts error callback. If not, the error as operation failure will be returned. \n
439 * If the function succeeds, @a err_msg must be released using free() when it is no longer required.
441 * @param[in] tts The TTS handle
442 * @param[out] err_msg The current error message
444 * @return 0 on success, otherwise a negative error value
445 * @retval #TTS_ERROR_NONE Successful
446 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
447 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
448 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
450 * @see tts_set_error_cb()
451 * @see tts_unset_error_cb()
453 int tts_get_error_message(tts_h tts, char** err_msg);
456 * @brief Adds a text to the queue.
457 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
459 * @remarks Locale(e.g. setlocale()) MUST be set for utf8 text validation check.
461 * @param[in] tts The TTS handle
462 * @param[in] text An input text based utf8
463 * @param[in] language The language selected from the tts_foreach_supported_voices() (e.g. 'NULL'(Automatic), 'en_US')
464 * @param[in] voice_type The voice type selected from the tts_foreach_supported_voices() (e.g. #TTS_VOICE_TYPE_AUTO, #TTS_VOICE_TYPE_FEMALE)
465 * @param[in] speed A speaking speed (e.g. #TTS_SPEED_AUTO or the value from tts_get_speed_range())
466 * @param[out] utt_id The utterance ID passed to the callback function
468 * @return 0 on success, otherwise a negative error value
469 * @retval #TTS_ERROR_NONE Successful
470 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
471 * @retval #TTS_ERROR_INVALID_STATE Invalid state
472 * @retval #TTS_ERROR_INVALID_VOICE Invalid voice about language, voice type
473 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
474 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
476 * @pre The state should be #TTS_STATE_READY, #TTS_STATE_PLAYING or #TTS_STATE_PAUSED.
477 * @see tts_get_max_text_size()
479 int tts_add_text(tts_h tts, const char* text, const char* language, int voice_type, int speed, int* utt_id);
482 * @brief Starts synthesizing voice from the text and plays the synthesized audio data.
483 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
485 * @param[in] tts The TTS handle
487 * @return 0 on success, otherwise a negative error value
488 * @retval #TTS_ERROR_NONE Successful
489 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
490 * @retval #TTS_ERROR_OUT_OF_NETWORK Out of network
491 * @retval #TTS_ERROR_INVALID_STATE Invalid state
492 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
493 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
495 * @pre The current state should be #TTS_STATE_READY or #TTS_STATE_PAUSED.
496 * @post If this function succeeds, the TTS state will be #TTS_STATE_PLAYING.
498 * @see tts_add_text()
501 * @see tts_utterance_started_cb()
502 * @see tts_utterance_completed_cb()
503 * @see tts_error_cb()
505 int tts_play(tts_h tts);
508 * @brief Stops playing the utterance and clears the queue.
509 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
511 * @param[in] tts The TTS handle
513 * @return 0 on success, otherwise a negative error value
514 * @retval #TTS_ERROR_NONE Successful
515 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
516 * @retval #TTS_ERROR_INVALID_STATE Invalid state
517 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
518 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
520 * @pre The TTS state should be #TTS_STATE_READY or #TTS_STATE_PLAYING or #TTS_STATE_PAUSED.
521 * @post If this function succeeds, the TTS state will be #TTS_STATE_READY.
522 * This function will remove all text via tts_add_text() and synthesized sound data.
527 int tts_stop(tts_h tts);
530 * @brief Pauses the currently playing utterance.
531 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
533 * @param[in] tts The TTS handle
535 * @return 0 on success, otherwise a negative error value
536 * @retval #TTS_ERROR_NONE Successful
537 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
538 * @retval #TTS_ERROR_INVALID_STATE Invalid state
539 * @retval #TTS_ERROR_OPERATION_FAILED Operation failure
540 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
542 * @pre The TTS state should be #TTS_STATE_PLAYING.
543 * @post If this function succeeds, the TTS state will be #TTS_STATE_PAUSED.
547 * @see tts_error_cb()
548 * @see tts_interrupted_cb()
550 int tts_pause(tts_h tts);
553 * @brief Registers a callback function to be called when the TTS state changes.
554 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
556 * @param[in] tts The TTS handle
557 * @param[in] callback The callback function to register
558 * @param[in] user_data The user data to be passed to the callback function
560 * @return 0 on success, otherwise a negative error value
561 * @retval #TTS_ERROR_NONE Successful
562 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
563 * @retval #TTS_ERROR_INVALID_STATE Invalid state
564 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
566 * @pre The state should be #TTS_STATE_CREATED.
568 * @see tts_state_changed_cb()
569 * @see tts_unset_state_changed_cb()
571 int tts_set_state_changed_cb(tts_h tts, tts_state_changed_cb callback, void* user_data);
574 * @brief Unregisters the callback function.
575 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
577 * @param[in] tts The TTS handle
579 * @return 0 on success, otherwise a negative error value
580 * @retval #TTS_ERROR_NONE Successful
581 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
582 * @retval #TTS_ERROR_INVALID_STATE Invalid state
583 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
585 * @pre The state should be #TTS_STATE_CREATED.
587 * @see tts_set_state_changed_cb()
589 int tts_unset_state_changed_cb(tts_h tts);
592 * @brief Registers a callback function to detect utterance start.
593 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
595 * @param[in] tts The TTS handle
596 * @param[in] callback The callback function to register
597 * @param[in] user_data The user data to be passed to the callback function
599 * @return 0 on success, otherwise a negative error value
600 * @retval #TTS_ERROR_NONE Successful
601 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
602 * @retval #TTS_ERROR_INVALID_STATE Invalid state
603 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
605 * @pre The state should be #TTS_STATE_CREATED.
607 * @see tts_utterance_started_cb()
608 * @see tts_unset_utterance_started_cb()
610 int tts_set_utterance_started_cb(tts_h tts, tts_utterance_started_cb callback, void* user_data);
613 * @brief Unregisters the callback function.
614 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
616 * @param[in] tts The TTS handle
618 * @return 0 on success, otherwise a negative error value
619 * @retval #TTS_ERROR_NONE Successful
620 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
621 * @retval #TTS_ERROR_INVALID_STATE Invalid state
622 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
624 * @pre The state should be #TTS_STATE_CREATED.
626 * @see tts_set_utterance_started_cb()
628 int tts_unset_utterance_started_cb(tts_h tts);
631 * @brief Registers a callback function to detect utterance completion.
632 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
634 * @param[in] tts The TTS handle
635 * @param[in] callback The callback function to register
636 * @param[in] user_data The user data to be passed to the callback function
638 * @return 0 on success, otherwise a negative error value
639 * @retval #TTS_ERROR_NONE Successful
640 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
641 * @retval #TTS_ERROR_INVALID_STATE Invalid state
642 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
644 * @pre The state should be #TTS_STATE_CREATED.
646 * @see tts_utterance_completed_cb()
647 * @see tts_unset_utterance_completed_cb()
649 int tts_set_utterance_completed_cb(tts_h tts, tts_utterance_completed_cb callback, void* user_data);
652 * @brief Unregisters the callback function.
653 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
655 * @param[in] tts The TTS handle
657 * @return 0 on success, otherwise a negative error value
658 * @retval #TTS_ERROR_NONE Successful
659 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
660 * @retval #TTS_ERROR_INVALID_STATE Invalid state
661 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
663 * @pre The state should be #TTS_STATE_CREATED.
665 * @see tts_set_utterance_completed_cb()
667 int tts_unset_utterance_completed_cb(tts_h tts);
670 * @brief Registers a callback function to detect errors.
671 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
673 * @param[in] tts The TTS handle
674 * @param[in] callback The callback function to register
675 * @param[in] user_data The user data to be passed to the callback function
677 * @return 0 on success, otherwise a negative error value
678 * @retval #TTS_ERROR_NONE Successful
679 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
680 * @retval #TTS_ERROR_INVALID_STATE Invalid state
681 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
683 * @pre The state should be #TTS_STATE_CREATED.
685 * @see tts_error_cb()
686 * @see tts_unset_error_cb()
688 int tts_set_error_cb(tts_h tts, tts_error_cb callback, void* user_data);
691 * @brief Unregisters the callback function.
692 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
694 * @param[in] tts The TTS handle
696 * @return 0 on success, otherwise a negative error value
697 * @retval #TTS_ERROR_NONE Successful
698 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
699 * @retval #TTS_ERROR_INVALID_STATE Invalid state
700 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
702 * @pre The state should be #TTS_STATE_CREATED.
704 * @see tts_set_error_cb()
706 int tts_unset_error_cb(tts_h tts);
709 * @brief Registers a callback function to detect default voice change.
710 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
712 * @param[in] tts The TTS handle
713 * @param[in] callback The callback function to register
714 * @param[in] user_data The user data to be passed to the callback function
716 * @return 0 on success, otherwise a negative error value
717 * @retval #TTS_ERROR_NONE Successful
718 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
719 * @retval #TTS_ERROR_INVALID_STATE Invalid state
720 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
722 * @pre The state should be #TTS_STATE_CREATED.
724 * @see tts_default_voice_changed_cb()
725 * @see tts_unset_default_voice_changed_cb()
727 int tts_set_default_voice_changed_cb(tts_h tts, tts_default_voice_changed_cb callback, void* user_data);
730 * @brief Unregisters the callback function.
731 * @since_tizen @if MOBILE 2.3 @elseif WEARABLE 2.3.1 @endif
733 * @param[in] tts The TTS handle
735 * @return 0 on success, otherwise a negative error value
736 * @retval #TTS_ERROR_NONE Successful
737 * @retval #TTS_ERROR_INVALID_PARAMETER Invalid parameter
738 * @retval #TTS_ERROR_INVALID_STATE Invalid state
739 * @retval #TTS_ERROR_NOT_SUPPORTED TTS NOT supported
741 * @pre The state should be #TTS_STATE_CREATED.
743 * @see tts_set_default_voice_changed_cb()
745 int tts_unset_default_voice_changed_cb(tts_h tts);
756 #endif /* __TTS_H__ */