server/ttsd_engine_agent.c

   1 /*
   2 *  Copyright (c) 2012, 2013 Samsung Electronics Co., Ltd All Rights Reserved
   3 *  Licensed under the Apache License, Version 2.0 (the "License");
   4 *  you may not use this file except in compliance with the License.
   5 *  You may obtain a copy of the License at
   6 *  http://www.apache.org/licenses/LICENSE-2.0
   7 *  Unless required by applicable law or agreed to in writing, software
   8 *  distributed under the License is distributed on an "AS IS" BASIS,
   9 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10 *  See the License for the specific language governing permissions and
  11 *  limitations under the License.
  12 */
  13
  14
  15 #include <dlfcn.h>
  16 #include <dirent.h>
  17
  18 #include "ttsd_main.h"
  19 #include "ttsd_engine_agent.h"
  20 #include "ttsd_config.h"
  21
  22 #define ENGINE_PATH_SIZE        256
  23
  24 /*
  25 * Internal data structure
  26 */
  27 typedef struct {
  28         /* base info */
  29         char*   engine_uuid;
  30         char*   engine_name;
  31         char*   engine_path;
  32
  33         /* info for using engine load*/
  34         bool    is_set;
  35         bool    is_loaded;
  36         bool    need_network;
  37         void    *handle;
  38
  39         /* engine base setting */
  40         char*   default_lang;
  41         int     default_vctype;
  42         int     default_speed;
  43
  44         ttspe_funcs_s*  pefuncs;
  45         ttspd_funcs_s*  pdfuncs;
  46
  47         int (*ttsp_load_engine)(const ttspd_funcs_s* pdfuncs, ttspe_funcs_s* pefuncs);
  48         int (*ttsp_unload_engine)();
  49 } ttsengine_s;
  50
  51 typedef struct {
  52         char*   engine_uuid;
  53         char*   engine_path;
  54         char*   engine_name;
  55         char*   setting_ug_path;
  56         bool    use_network;
  57 } ttsengine_info_s;
  58
  59
  60 /** Init flag */
  61 static bool g_agent_init;
  62
  63 /** TTS engine list */
  64 static GList *g_engine_list;
  65
  66 /** Current engine information */
  67 static ttsengine_s g_cur_engine;
  68
  69 /** Result callback function */
  70 static synth_result_callback g_result_cb;
  71
  72
  73 /** Set current engine */
  74 int __internal_set_current_engine(const char* engine_uuid);
  75
  76 /** Check engine id */
  77 int __internal_check_engine_id(const char* engine_uuid);
  78
  79 /** Update engine list */
  80 int __internal_update_engine_list();
  81
  82 /** Get engine info */
  83 int __internal_get_engine_info(const char* filepath, ttsengine_info_s** info);
  84
  85 /** Callback function for result */
  86 bool __result_cb(ttsp_result_event_e event, const void* data, unsigned int data_size, void *user_data);
  87
  88 /** Callback function for voice list */
  89 bool __supported_voice_cb(const char* language, ttsp_voice_type_e type, void* user_data);
  90
  91 /** Free voice list */
  92 void __free_voice_list(GList* voice_list);
  93
  94 /** Callback function for engine info */
  95 void __engine_info_cb(const char* engine_uuid, const char* engine_name, const char* setting_ug_name,
  96                       bool use_network, void* user_data);
  97
  98 /** Callback fucntion for engine setting */
  99 bool __engine_setting_cb(const char* key, const char* value, void* user_data);
 100
 101
 102 int ttsd_engine_agent_init(synth_result_callback result_cb)
 103 {
 104         /* initialize static data */
 105         if (result_cb == NULL) {
 106                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] invalid parameter");
 107                 return TTSD_ERROR_INVALID_PARAMETER;
 108         }
 109
 110         g_result_cb = result_cb;
 111
 112         g_cur_engine.engine_uuid = NULL;
 113         g_cur_engine.engine_name = NULL;
 114         g_cur_engine.engine_path = NULL;
 115
 116         g_cur_engine.is_set = false;
 117         g_cur_engine.handle = NULL;
 118         g_cur_engine.pefuncs = (ttspe_funcs_s*)g_malloc0( sizeof(ttspe_funcs_s) );
 119         g_cur_engine.pdfuncs = (ttspd_funcs_s*)g_malloc0( sizeof(ttspd_funcs_s) );
 120
 121         g_agent_init = true;
 122
 123         if (0 != ttsd_config_get_default_voice(&(g_cur_engine.default_lang), &(g_cur_engine.default_vctype))) {
 124                 SLOG(LOG_WARN, get_tag(), "[Server WARNING] There is No default voice in config");
 125                 /* Set default voice */
 126                 g_cur_engine.default_lang = strdup("en_US");
 127                 g_cur_engine.default_vctype = TTSP_VOICE_TYPE_FEMALE;
 128         }
 129
 130         if (0 != ttsd_config_get_default_speed(&(g_cur_engine.default_speed))) {
 131                 SLOG(LOG_WARN, get_tag(), "[Server WARNING] There is No default speed in config");
 132                 ttsd_config_set_default_speed((int)TTSP_SPEED_NORMAL);
 133                 g_cur_engine.default_speed = TTSP_SPEED_NORMAL;
 134         }
 135
 136         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Initialize Engine Agent");
 137
 138         return 0;
 139 }
 140
 141 int ttsd_engine_agent_release()
 142 {
 143         if (false == g_agent_init) {
 144                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized");
 145                 return TTSD_ERROR_OPERATION_FAILED;
 146         }
 147
 148         /* unload current engine */
 149         ttsd_engine_agent_unload_current_engine();
 150
 151         /* release engine list */
 152         GList *iter = NULL;
 153         ttsengine_s *data = NULL;
 154
 155         if (g_list_length(g_engine_list) > 0) {
 156                 /* Get a first item */
 157                 iter = g_list_first(g_engine_list);
 158                 while (NULL != iter) {
 159                         /* Get data from item */
 160                         data = iter->data;
 161                         iter = g_list_remove(iter, data);
 162                 }
 163         }
 164         g_list_free(iter);
 165         /* release current engine data */
 166         if (g_cur_engine.pefuncs != NULL)
 167                 g_free(g_cur_engine.pefuncs);
 168
 169         if (g_cur_engine.pdfuncs != NULL)
 170                 g_free(g_cur_engine.pdfuncs);
 171
 172         g_result_cb = NULL;
 173         g_agent_init = false;
 174
 175         if (g_cur_engine.default_lang != NULL)
 176                 g_free(g_cur_engine.default_lang);
 177
 178
 179         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Release Engine Agent");
 180
 181         return 0;
 182 }
 183
 184 int ttsd_engine_agent_initialize_current_engine()
 185 {
 186         if (false == g_agent_init) {
 187                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 188                 return TTSD_ERROR_OPERATION_FAILED;
 189         }
 190
 191         /* update engine list */
 192         if (0 != __internal_update_engine_list()) {
 193                 SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] No engine error");
 194                 return TTSD_ERROR_OPERATION_FAILED;
 195         }
 196
 197         /* 2. get current engine from config */
 198         char* cur_engine_uuid = NULL;
 199         bool is_get_engineid_from_config = false;
 200
 201         if (0 != ttsd_config_get_default_engine(&cur_engine_uuid)) {
 202                 /*not set current engine */
 203                 /*set system default engine*/
 204                 GList *iter = NULL;
 205                 ttsengine_info_s *data = NULL;
 206
 207                 if (g_list_length(g_engine_list) > 0) {
 208                         iter = g_list_first(g_engine_list);
 209                         char* default_engine = "27F277E9-BBC4-4dca-B553-D9884A3CDAA0";
 210
 211                         while (NULL != iter) {
 212                                 data = iter->data;
 213
 214                                 if (0 == strncmp(data->engine_uuid, default_engine, strlen(default_engine))) {
 215                                         /* current data is default engine */
 216                                         break;
 217                                 }
 218
 219                                 iter = g_list_next(iter);
 220                         }
 221                 } else {
 222                         SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail to set a engine of engine list");
 223                         return TTSD_ERROR_OPERATION_FAILED;
 224                 }
 225
 226                 if (NULL != data->engine_uuid) {
 227                         cur_engine_uuid = strdup(data->engine_uuid);
 228                 } else {
 229                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Data of current engine is corrupt");
 230                         return TTSD_ERROR_OPERATION_FAILED;
 231                 }
 232
 233                 is_get_engineid_from_config = false;
 234         } else {
 235                 is_get_engineid_from_config = true;
 236         }
 237
 238         /* check whether cur engine uuid is valid or not. */
 239         if (0 != __internal_check_engine_id(cur_engine_uuid)) {
 240                 SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] It is not valid engine id from config");
 241
 242                 GList *iter = NULL;
 243
 244                 if (g_list_length(g_engine_list) > 0)
 245                         iter = g_list_first(g_engine_list);
 246                 else {
 247                         SLOG(LOG_WARN, get_tag(), "[Engine Agent ERROR] NO TTS Engine !!");
 248                         return TTSD_ERROR_OPERATION_FAILED;
 249                 }
 250
 251                 if (cur_engine_uuid != NULL)
 252                         g_free(cur_engine_uuid);
 253
 254                 ttsengine_info_s *data = NULL;
 255                 data = iter->data;
 256
 257                 cur_engine_uuid = g_strdup(data->engine_uuid);
 258
 259                 is_get_engineid_from_config = false;
 260         }
 261
 262         if (NULL != cur_engine_uuid)
 263                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Current Engine Id : %s", cur_engine_uuid);
 264         else
 265                 return TTSD_ERROR_OPERATION_FAILED;
 266
 267         /* set current engine */
 268         if (0 != __internal_set_current_engine(cur_engine_uuid)) {
 269                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set current engine ");
 270                 return TTSD_ERROR_OPERATION_FAILED;
 271         }
 272
 273         if (false == is_get_engineid_from_config) {
 274                 if (0 != ttsd_config_set_default_engine(cur_engine_uuid))
 275                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set id to config");
 276         }
 277
 278         if (NULL != cur_engine_uuid)
 279                 g_free(cur_engine_uuid);
 280
 281         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set current engine");
 282
 283         return 0;
 284 }
 285
 286 int __internal_check_engine_id(const char* engine_uuid)
 287 {
 288         GList *iter = NULL;
 289         ttsengine_s *data = NULL;
 290
 291         if (g_list_length(g_engine_list) > 0) {
 292                 iter = g_list_first(g_engine_list);
 293
 294                 while (NULL != iter) {
 295                         data = iter->data;
 296
 297                         if (0 == strncmp(engine_uuid, data->engine_uuid, strlen(data->engine_uuid)))
 298                                 return 0;
 299
 300                         iter = g_list_next(iter);
 301                 }
 302         }
 303
 304         return -1;
 305 }
 306
 307 void __engine_info_cb(const char* engine_uuid, const char* engine_name, const char* setting_ug_name,
 308                              bool use_network, void* user_data)
 309 {
 310         ttsengine_info_s* temp = (ttsengine_info_s*)user_data;
 311
 312         temp->engine_uuid = g_strdup(engine_uuid);
 313         temp->engine_name = g_strdup(engine_name);
 314         temp->setting_ug_path = g_strdup(setting_ug_name);
 315         temp->use_network = use_network;
 316 }
 317
 318 int __internal_get_engine_info(const char* filepath, ttsengine_info_s** info)
 319 {
 320         char *error;
 321         void* handle;
 322
 323         handle = dlopen (filepath, RTLD_LAZY );
 324
 325         if (!handle) {
 326                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] Invalid engine : %s", filepath);
 327                 return TTSD_ERROR_OPERATION_FAILED;
 328         }
 329
 330         /* link engine to daemon */
 331         dlsym(handle, "ttsp_load_engine");
 332         if ((error = dlerror()) != NULL) {
 333                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] Invalid engine. Fail to open ttsp_load_engine : %s", filepath);
 334                 dlclose(handle);
 335                 return TTSD_ERROR_OPERATION_FAILED;
 336         }
 337
 338         dlsym(handle, "ttsp_unload_engine");
 339         if ((error = dlerror()) != NULL) {
 340                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] Invalid engine. Fail to open ttsp_unload_engine : %s", filepath);
 341                 dlclose(handle);
 342                 return TTSD_ERROR_OPERATION_FAILED;
 343         }
 344
 345         int (*get_engine_info)(ttsp_engine_info_cb callback, void* user_data);
 346
 347         get_engine_info = (int (*)(ttsp_engine_info_cb, void*))dlsym(handle, "ttsp_get_engine_info");
 348         if (NULL != (error = dlerror()) || NULL == get_engine_info) {
 349                 SLOG(LOG_WARN, get_tag(), "[Engine Agent] ttsp_get_engine_info() link error");
 350                 dlclose(handle);
 351                 return TTSD_ERROR_OPERATION_FAILED;
 352         }
 353
 354         ttsengine_info_s* temp;
 355         temp = (ttsengine_info_s*)g_malloc0(sizeof(ttsengine_info_s));
 356
 357         /* get engine info */
 358         if (0 != get_engine_info(&__engine_info_cb, (void*)temp)) {
 359                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get engine info");
 360                 dlclose(handle);
 361                 g_free(temp);
 362                 return TTSD_ERROR_OPERATION_FAILED;
 363         }
 364
 365         /* close engine */
 366         dlclose(handle);
 367
 368         if (TTSD_MODE_SCREEN_READER == ttsd_get_mode()) {
 369                 if (true == temp->use_network) {
 370                         free(temp);
 371                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent WARNING] %s is invalid because of network based engine.", temp->engine_name);
 372                         return TTSD_ERROR_OPERATION_FAILED;
 373                 }
 374         }
 375
 376         temp->engine_path = g_strdup(filepath);
 377
 378         SLOG(LOG_DEBUG, get_tag(), "----- Valid engine");
 379         SLOG(LOG_DEBUG, get_tag(), "Engine uuid : %s", temp->engine_uuid);
 380         SLOG(LOG_DEBUG, get_tag(), "Engine name : %s", temp->engine_name);
 381         SLOG(LOG_DEBUG, get_tag(), "Setting ug path : %s", temp->setting_ug_path);
 382         SLOG(LOG_DEBUG, get_tag(), "Engine path : %s", temp->engine_path);
 383         SLOG(LOG_DEBUG, get_tag(), "Use network : %s", temp->use_network ? "true":"false");
 384         SLOG(LOG_DEBUG, get_tag(), "-----");
 385         SLOG(LOG_DEBUG, get_tag(), "  ");
 386
 387         *info = temp;
 388
 389         return 0;
 390 }
 391
 392 int __internal_update_engine_list()
 393 {
 394         /* relsease engine list */
 395         GList *iter = NULL;
 396         ttsengine_info_s *data = NULL;
 397
 398         if (g_list_length(g_engine_list) > 0) {
 399                 iter = g_list_first(g_engine_list);
 400
 401                 while (NULL != iter) {
 402                         data = iter->data;
 403
 404                         if (data != NULL)
 405                                 g_free(data);
 406
 407                         g_engine_list = g_list_remove_link(g_engine_list, iter);
 408                         iter = g_list_first(g_engine_list);
 409                 }
 410         }
 411
 412         /* get file name from engine directory and get engine information from each filename */
 413         DIR *dp;
 414         struct dirent *dirp;
 415         dp = opendir(ENGINE_DIRECTORY_DEFAULT);
 416
 417         if (dp != NULL) {
 418                 while ((dirp = readdir(dp)) != NULL) {
 419                         ttsengine_info_s* info;
 420                         char* filepath = NULL;
 421                         int file_size;
 422
 423                         file_size = strlen(ENGINE_DIRECTORY_DEFAULT) + strlen(dirp->d_name) + 5;
 424                         filepath = (char*)g_malloc0( sizeof(char) * file_size);
 425
 426                         if (NULL != filepath) {
 427                                 strncpy(filepath, ENGINE_DIRECTORY_DEFAULT, strlen(ENGINE_DIRECTORY_DEFAULT) );
 428                                 strncat(filepath, "/", strlen("/") );
 429                                 strncat(filepath, dirp->d_name, strlen(dirp->d_name) );
 430                         } else {
 431                                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not enough memory!!" );
 432                                 continue;
 433                         }
 434
 435                         /* get its info and update engine list */
 436                         if (0 == __internal_get_engine_info(filepath, &info)) {
 437                                 /* add engine info to g_engine_list */
 438                                 g_engine_list = g_list_append(g_engine_list, info);
 439                         }
 440
 441                         if (NULL != filepath)
 442                                 g_free(filepath);
 443                 }
 444
 445                 closedir(dp);
 446         }
 447
 448         dp = opendir(ENGINE_DIRECTORY_DOWNLOAD);
 449
 450         if (dp != NULL) {
 451                 while ((dirp = readdir(dp)) != NULL) {
 452                         ttsengine_info_s* info;
 453                         char* filepath = NULL;
 454                         int file_size;
 455
 456                         file_size = strlen(ENGINE_DIRECTORY_DOWNLOAD) + strlen(dirp->d_name) + 5;
 457                         filepath = (char*)g_malloc0( sizeof(char) * file_size);
 458
 459                         if (NULL != filepath) {
 460                                 strcpy(filepath, ENGINE_DIRECTORY_DOWNLOAD);
 461                                 strcat(filepath, "/");
 462                                 strcat(filepath, dirp->d_name);
 463                         } else {
 464                                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not enough memory!!" );
 465                                 continue;
 466                         }
 467
 468                         /* get its info and update engine list */
 469                         if (0 == __internal_get_engine_info(filepath, &info)) {
 470                                 /* add engine info to g_engine_list */
 471                                 g_engine_list = g_list_append(g_engine_list, info);
 472                         }
 473
 474                         if (NULL != filepath)
 475                                 g_free(filepath);
 476                 }
 477
 478                 closedir(dp);
 479         }
 480
 481         if (g_list_length(g_engine_list) <= 0) {
 482                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] No Engine");
 483                 return TTSD_ERROR_OPERATION_FAILED;
 484         }
 485
 486 #ifdef ENGINE_AGENT_DEBUG
 487         ttsd_print_enginelist();
 488 #endif
 489
 490         return 0;
 491 }
 492
 493 int __internal_set_current_engine(const char* engine_uuid)
 494 {
 495         /* check whether engine id is valid or not. */
 496         GList *iter = NULL;
 497         ttsengine_info_s *data = NULL;
 498
 499         bool flag = false;
 500         if (g_list_length(g_engine_list) > 0) {
 501                 iter = g_list_first(g_engine_list);
 502
 503                 while (NULL != iter) {
 504                         data = iter->data;
 505
 506                         if (0 == strncmp(data->engine_uuid, engine_uuid, strlen(engine_uuid))) {
 507                                 flag = true;
 508                                 break;
 509                         }
 510
 511                         /*Get next item*/
 512                         iter = g_list_next(iter);
 513                 }
 514         }
 515
 516         /* If current engine does not exist, return error */
 517         if (false == flag) {
 518                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] __internal_set_current_engine : Cannot find engine id");
 519                 return TTSD_ERROR_OPERATION_FAILED;
 520         } else {
 521                 if (g_cur_engine.engine_uuid != NULL) {
 522                         /*compare current engine uuid */
 523                         if (0 == strncmp(g_cur_engine.engine_uuid, data->engine_uuid, strlen(engine_uuid))) {
 524                                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] tts engine has already been set");
 525                                 return 0;
 526                         }
 527                 }
 528         }
 529
 530         /* set data from g_engine_list */
 531         if (g_cur_engine.engine_uuid != NULL)   g_free(g_cur_engine.engine_uuid);
 532         if (g_cur_engine.engine_name != NULL)   g_free(g_cur_engine.engine_name);
 533         if (g_cur_engine.engine_path != NULL)   g_free(g_cur_engine.engine_path);
 534
 535         if (NULL == data->engine_uuid || NULL == data->engine_name || NULL == data->engine_path) {
 536                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] __internal_set_current_engine : Engine data is NULL");
 537                 return TTSD_ERROR_OPERATION_FAILED;
 538         }
 539
 540         g_cur_engine.engine_uuid = g_strdup(data->engine_uuid);
 541         g_cur_engine.engine_name = g_strdup(data->engine_name);
 542         g_cur_engine.engine_path = g_strdup(data->engine_path);
 543
 544         g_cur_engine.handle = NULL;
 545         g_cur_engine.is_loaded = false;
 546         g_cur_engine.is_set = true;
 547         g_cur_engine.need_network = data->use_network;
 548
 549         SLOG(LOG_DEBUG, get_tag(), "-----");
 550         SLOG(LOG_DEBUG, get_tag(), "Current engine uuid : %s", g_cur_engine.engine_uuid);
 551         SLOG(LOG_DEBUG, get_tag(), "Current engine name : %s", g_cur_engine.engine_name);
 552         SLOG(LOG_DEBUG, get_tag(), "Current engine path : %s", g_cur_engine.engine_path);
 553         SLOG(LOG_DEBUG, get_tag(), "-----");
 554
 555         return 0;
 556 }
 557
 558 int ttsd_engine_agent_load_current_engine()
 559 {
 560         if (false == g_agent_init) {
 561                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 562                 return TTSD_ERROR_OPERATION_FAILED;
 563         }
 564
 565         if (false == g_cur_engine.is_set) {
 566                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ttsd_engine_agent_load_current_engine : No Current Engine ");
 567                 return TTSD_ERROR_OPERATION_FAILED;
 568         }
 569
 570         /* check whether current engine is loaded or not */
 571         if (true == g_cur_engine.is_loaded ) {
 572                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent] ttsd_engine_agent_load_current_engine : Engine has already been loaded " );
 573                 return 0;
 574         }
 575
 576         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] current engine path : %s", g_cur_engine.engine_path);
 577
 578         /* open engine */
 579         char *error = NULL;
 580         g_cur_engine.handle = dlopen(g_cur_engine.engine_path, RTLD_LAZY); /* RTLD_LAZY RTLD_NOW*/
 581
 582         if (NULL != (error = dlerror()) || NULL == g_cur_engine.handle) {
 583                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get current engine handle : dlopen error ($s)", error);
 584                 return -2;
 585         }
 586
 587         g_cur_engine.ttsp_unload_engine = (int (*)())dlsym(g_cur_engine.handle, "ttsp_unload_engine");
 588         if (NULL != (error = dlerror()) || NULL == g_cur_engine.ttsp_unload_engine) {
 589                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to link daemon to ttsp_unload_engine() of current engine : (%s)", error);
 590                 return -3;
 591         }
 592
 593         g_cur_engine.ttsp_load_engine = (int (*)(const ttspd_funcs_s* , ttspe_funcs_s*) )dlsym(g_cur_engine.handle, "ttsp_load_engine");
 594         if (NULL != (error = dlerror()) || NULL == g_cur_engine.ttsp_load_engine) {
 595                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to link daemon to ttsp_load_engine() of current engine : %s", error);
 596                 return -3;
 597         }
 598
 599         /* load engine */
 600         g_cur_engine.pdfuncs->version = 1;
 601         g_cur_engine.pdfuncs->size = sizeof(ttspd_funcs_s);
 602
 603         int ret = 0;
 604         ret = g_cur_engine.ttsp_load_engine(g_cur_engine.pdfuncs, g_cur_engine.pefuncs);
 605         if (0 != ret) {
 606                 printf("Fail load '%s' engine", g_cur_engine.engine_path);
 607                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to load engine : result(%d)");
 608                 return TTSD_ERROR_OPERATION_FAILED;
 609         }
 610
 611         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] engine info : version(%d), size(%d)",g_cur_engine.pefuncs->version, g_cur_engine.pefuncs->size );
 612
 613         /* engine error check */
 614         if (g_cur_engine.pefuncs->size != sizeof(ttspe_funcs_s)) {
 615                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ttsd_engine_agent_load_current_engine : current engine is not valid");
 616                 return TTSD_ERROR_OPERATION_FAILED;
 617         }
 618
 619         /* initalize engine */
 620         if (NULL == g_cur_engine.pefuncs->initialize) {
 621                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] init function of engine is NULL!!");
 622                 return TTSD_ERROR_OPERATION_FAILED;
 623         }
 624
 625         ret = g_cur_engine.pefuncs->initialize(__result_cb);
 626         if (0 != ret) {
 627                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to initialize current engine : result(%d)", ret);
 628                 return TTSD_ERROR_OPERATION_FAILED;
 629         }
 630
 631         /* select default voice */
 632         bool set_voice = false;
 633         if (NULL != g_cur_engine.default_lang) {
 634                 if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
 635                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] is_valid_voice() of engine is NULL!!");
 636                         return TTSD_ERROR_OPERATION_FAILED;
 637                 }
 638
 639                 if (true == g_cur_engine.pefuncs->is_valid_voice(g_cur_engine.default_lang, g_cur_engine.default_vctype)) {
 640                         set_voice = true;
 641                         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set origin default voice to current engine : lang(%s), type(%d)",
 642                                 g_cur_engine.default_lang,  g_cur_engine.default_vctype);
 643                 } else {
 644                         SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail set origin default voice : lang(%s), type(%d)",
 645                                 g_cur_engine.default_lang, g_cur_engine.default_vctype);
 646                 }
 647         }
 648
 649         if (false == set_voice) {
 650                 if (NULL == g_cur_engine.pefuncs->foreach_voices) {
 651                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_voice_list of engine is NULL!!");
 652                         return TTSD_ERROR_OPERATION_FAILED;
 653                 }
 654
 655                 /* get language list */
 656                 int ret;
 657                 GList* voice_list = NULL;
 658
 659                 ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
 660
 661                 if (0 == ret && 0 < g_list_length(voice_list)) {
 662                         GList *iter = NULL;
 663                         voice_s* voice;
 664
 665                         iter = g_list_first(voice_list);
 666
 667                         /* check english */
 668                         while (NULL != iter) {
 669                                 voice = iter->data;
 670
 671                                 if (NULL != voice) {
 672                                         if (0 == strcmp("en_US", voice->language))
 673                                                 break;
 674                                 }
 675
 676                                 iter = g_list_next(iter);
 677                         }
 678
 679                         /* Set selected language and type */
 680                         if (true != g_cur_engine.pefuncs->is_valid_voice(voice->language, voice->type)) {
 681                                 SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail voice is NOT valid");
 682                                 return TTSD_ERROR_OPERATION_FAILED;
 683                         }
 684
 685                         ttsd_config_set_default_voice(voice->language, (int)voice->type);
 686
 687                         g_cur_engine.default_lang = g_strdup(voice->language);
 688                         g_cur_engine.default_vctype = voice->type;
 689
 690                         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Select default voice : lang(%s), type(%d)",
 691                                 voice->language,  voice->type);
 692
 693                         __free_voice_list(voice_list);
 694                 } else {
 695                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)", ret);
 696                         return TTSD_ERROR_OPERATION_FAILED;
 697                 }
 698         }
 699
 700         g_cur_engine.is_loaded = true;
 701
 702         return 0;
 703 }
 704
 705 int ttsd_engine_agent_unload_current_engine()
 706 {
 707         if (false == g_agent_init) {
 708                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 709                 return TTSD_ERROR_OPERATION_FAILED;
 710         }
 711
 712         if (false == g_cur_engine.is_set) {
 713                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] No Current Engine ");
 714                 return TTSD_ERROR_OPERATION_FAILED;
 715         }
 716
 717         if (false == g_cur_engine.is_loaded) {
 718                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Engine has already been unloaded " );
 719                 return 0;
 720         }
 721
 722         /* shutdown engine */
 723         if (NULL == g_cur_engine.pefuncs->deinitialize) {
 724                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The deinitialize() of engine is NULL!!");
 725         } else {
 726                 int ret = 0;
 727                 ret = g_cur_engine.pefuncs->deinitialize();
 728                 if (0 != ret) {
 729                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent] Fail deinitialize() : result(%d)", ret);
 730                 }
 731         }
 732
 733         /* unload engine */
 734         g_cur_engine.ttsp_unload_engine();
 735
 736         dlclose(g_cur_engine.handle);
 737
 738         /* reset current engine data */
 739         g_cur_engine.handle = NULL;
 740         g_cur_engine.is_loaded = false;
 741
 742         return 0;
 743 }
 744
 745 bool ttsd_engine_agent_need_network()
 746 {
 747         if (false == g_agent_init) {
 748                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 749                 return TTSD_ERROR_OPERATION_FAILED;
 750         }
 751
 752         if (false == g_cur_engine.is_loaded) {
 753                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 754                 return TTSD_ERROR_OPERATION_FAILED;
 755         }
 756
 757         return g_cur_engine.need_network;
 758 }
 759
 760 bool ttsd_engine_select_valid_voice(const char* lang, int type, char** out_lang, ttsp_voice_type_e* out_type)
 761 {
 762         if (NULL == lang || NULL == out_lang || NULL == out_type) {
 763                 return false;
 764         }
 765
 766         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Select voice : input lang(%s) , input type(%d), default lang(%s), default type(%d)",
 767                 lang, type, g_cur_engine.default_lang, g_cur_engine.default_vctype);
 768
 769
 770         /* case 1 : Both are default */
 771         if (0 == strncmp(lang, "default", strlen("default")) && 0 == type) {
 772                 *out_lang = strdup(g_cur_engine.default_lang);
 773                 *out_type = g_cur_engine.default_vctype;
 774                 return true;
 775         }
 776
 777         /* Get voice list */
 778         if (NULL == g_cur_engine.pefuncs->foreach_voices) {
 779                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] foreach_voices of engine is NULL!!");
 780                 return TTSD_ERROR_OPERATION_FAILED;
 781         }
 782
 783         GList* voice_list = NULL;
 784         int ret = 0;
 785
 786         ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
 787         if (0 != ret || 0 >= g_list_length(voice_list)) {
 788                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get voice list : result(%d)", ret);
 789                 return false;
 790         }
 791
 792         bool result;
 793         result = false;
 794
 795         GList *iter = NULL;
 796         voice_s* voice;
 797
 798         /* lang and type are not default type */
 799         if (0 != strncmp(lang, "default", strlen("default")) && 0 != type) {
 800                 iter = g_list_first(voice_list);
 801
 802                 while (NULL != iter) {
 803                         /* Get handle data from list */
 804                         voice = iter->data;
 805
 806                         if (0 == strncmp(voice->language, lang, strlen(lang)) &&  voice->type == type) {
 807                                 *out_lang = strdup(voice->language);
 808                                 *out_type = voice->type;
 809                                 result = true;
 810                                 break;
 811                         }
 812
 813                         iter = g_list_next(iter);
 814                 }
 815
 816         } else if (0 != strncmp(lang, "default", strlen("default")) && 0 == type) {
 817                 /* Only type is default */
 818                 if (0 == strncmp(lang, g_cur_engine.default_lang, strlen(g_cur_engine.default_lang))) {
 819                         *out_lang = strdup(g_cur_engine.default_lang);
 820                         *out_type = g_cur_engine.default_vctype;
 821                         result = true;
 822                 } else {
 823                         voice_s* voice_selected = NULL;
 824                         iter = g_list_first(voice_list);
 825                         while (NULL != iter) {
 826                                 /* Get handle data from list */
 827                                 voice = iter->data;
 828
 829                                 if (0 == strncmp(voice->language, lang, strlen(lang))) {
 830                                         voice_selected = voice;
 831                                         if (voice->type == g_cur_engine.default_vctype) {
 832                                                 voice_selected = voice;
 833                                                 break;
 834                                         }
 835                                 }
 836                                 iter = g_list_next(iter);
 837                         }
 838
 839                         if (NULL != voice_selected) {
 840                                 *out_lang = strdup(voice_selected->language);
 841                                 *out_type = voice_selected->type;
 842                                 result = true;
 843                         }
 844                 }
 845         } else if (0 == strncmp(lang, "default", strlen("default")) && 0 != type) {
 846                 /* Only lang is default */
 847                 if (type == g_cur_engine.default_vctype) {
 848                         *out_lang = strdup(g_cur_engine.default_lang);
 849                         *out_type = g_cur_engine.default_vctype;
 850                         result = true;
 851                 } else {
 852                         voice_s* voice_selected = NULL;
 853                         iter = g_list_first(voice_list);
 854                         while (NULL != iter) {
 855                                 /* Get handle data from list */
 856                                 voice = iter->data;
 857
 858                                 if (0 == strncmp(voice->language, g_cur_engine.default_lang, strlen(g_cur_engine.default_lang)) ) {
 859                                         voice_selected = voice;
 860                                         if (voice->type == type) {
 861                                                 voice_selected = voice;
 862                                                 break;
 863                                         }
 864                                 }
 865                                 iter = g_list_next(iter);
 866                         }
 867
 868                         if (NULL != voice_selected) {
 869                                 *out_lang = strdup(voice->language);
 870                                 *out_type = voice_selected->type;
 871                                 result = true;
 872                         }
 873                 }
 874         }
 875
 876         if (true == result) {
 877                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Selected voice : lang(%s), type(%d)", *out_lang, *out_type);
 878         }
 879
 880         __free_voice_list(voice_list);
 881
 882         return result;
 883 }
 884
 885 bool ttsd_engine_agent_is_same_engine(const char* engine_id)
 886 {
 887         if (false == g_agent_init) {
 888                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 889                 return false;
 890         }
 891
 892         if (false == g_cur_engine.is_loaded) {
 893                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 894                 return false;
 895         }
 896
 897         /* compare current engine and engine id.*/
 898         if (0 == strncmp(g_cur_engine.engine_uuid, engine_id, strlen(engine_id))) {
 899                 return true;
 900         }
 901
 902         return false;
 903 }
 904
 905 int ttsd_engine_agent_set_default_voice(const char* language, ttsp_voice_type_e vctype)
 906 {
 907         if (false == g_agent_init) {
 908                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 909                 return TTSD_ERROR_OPERATION_FAILED;
 910         }
 911
 912         if (false == g_cur_engine.is_loaded) {
 913                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 914                 return TTSD_ERROR_OPERATION_FAILED;
 915         }
 916
 917         if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
 918                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
 919                 return TTSD_ERROR_OPERATION_FAILED;
 920         }
 921
 922         int ret = -1;
 923         if(false == g_cur_engine.pefuncs->is_valid_voice(language, vctype)) {
 924                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Voice is NOT valid !!");
 925                 return TTSD_ERROR_INVALID_VOICE;
 926         }
 927
 928         if (NULL != g_cur_engine.default_lang)
 929                 free(g_cur_engine.default_lang);
 930
 931         g_cur_engine.default_lang = strdup(language);
 932         g_cur_engine.default_vctype = vctype;
 933
 934         ret = ttsd_config_set_default_voice(language, (int)vctype);
 935         if (0 == ret) {
 936                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set default voice : lang(%s), type(%d)",
 937                         g_cur_engine.default_lang, g_cur_engine.default_vctype);
 938         } else {
 939                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to write default voice to config (%d)", ret);
 940                 return TTSD_ERROR_OPERATION_FAILED;
 941         }
 942
 943         return 0;
 944 }
 945
 946 /******************************************************************************************
 947 * TTS Engine Interfaces for client
 948 *******************************************************************************************/
 949
 950 int ttsd_engine_start_synthesis(const char* lang, const ttsp_voice_type_e vctype, const char* text, const int speed, void* user_param)
 951 {
 952         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] start ttsd_engine_start_synthesis()");
 953
 954         if (false == g_agent_init) {
 955                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
 956                 return TTSD_ERROR_OPERATION_FAILED;
 957         }
 958
 959         if (false == g_cur_engine.is_loaded) {
 960                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
 961                 return TTSD_ERROR_OPERATION_FAILED;
 962         }
 963
 964         /* select voice for default */
 965         char* temp_lang = NULL;
 966         ttsp_voice_type_e temp_type;
 967         if (true != ttsd_engine_select_valid_voice(lang, vctype, &temp_lang, &temp_type)) {
 968                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Fail to select default voice");
 969                 return TTSD_ERROR_INVALID_VOICE;
 970         } else {
 971                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] Start synthesis : language(%s), type(%d), speed(%d), text(%s)",
 972                         temp_lang, temp_type, speed, text);
 973         }
 974
 975         if (NULL == g_cur_engine.pefuncs->start_synth) {
 976                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] start_synth() of engine is NULL!!");
 977                 return TTSD_ERROR_OPERATION_FAILED;
 978         }
 979
 980         ttsp_speed_e temp_speed;
 981
 982         if (0 == speed) {
 983                 temp_speed = g_cur_engine.default_speed;
 984         } else {
 985                 temp_speed = speed;
 986         }
 987
 988         /* synthesize text */
 989         int ret = 0;
 990         ret = g_cur_engine.pefuncs->start_synth(temp_lang, temp_type, text, temp_speed, user_param);
 991         if (0 != ret) {
 992                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ***************************************", ret);
 993                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] * synthesize error : result(%6d) *", ret);
 994                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] ***************************************", ret);
 995                 return TTSD_ERROR_OPERATION_FAILED;
 996         }
 997
 998         if (NULL == temp_lang)
 999                 free(temp_lang);
1000
1001         return 0;
1002 }
1003
1004
1005 int ttsd_engine_cancel_synthesis()
1006 {
1007         SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] start ttsd_engine_cancel_synthesis()");
1008
1009         if (false == g_agent_init) {
1010                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1011                 return TTSD_ERROR_OPERATION_FAILED;
1012         }
1013
1014         if (false == g_cur_engine.is_loaded) {
1015                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1016                 return TTSD_ERROR_OPERATION_FAILED;
1017         }
1018
1019         if (NULL == g_cur_engine.pefuncs->cancel_synth) {
1020                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] cancel_synth() of engine is NULL!!");
1021                 return TTSD_ERROR_OPERATION_FAILED;
1022         }
1023
1024         /* stop synthesis */
1025         int ret = 0;
1026         ret = g_cur_engine.pefuncs->cancel_synth();
1027         if (0 != ret) {
1028                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail cancel synthesis : result(%d)", ret);
1029                 return TTSD_ERROR_OPERATION_FAILED;
1030         }
1031
1032         return 0;
1033 }
1034
1035 int ttsd_engine_get_audio_format( ttsp_audio_type_e* type, int* rate, int* channels)
1036 {
1037         if (false == g_agent_init) {
1038                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1039                 return TTSD_ERROR_OPERATION_FAILED;
1040         }
1041
1042         if (false == g_cur_engine.is_loaded) {
1043                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1044                 return TTSD_ERROR_OPERATION_FAILED;
1045         }
1046
1047         if (NULL == g_cur_engine.pefuncs->get_audio_format) {
1048                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_audio_format() of engine is NULL!!");
1049                 return TTSD_ERROR_OPERATION_FAILED;
1050         }
1051
1052         int ret = 0;
1053         ret = g_cur_engine.pefuncs->get_audio_format(type, rate, channels);
1054         if (0 != ret) {
1055                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get audio format : result(%d)", ret);
1056                 return TTSD_ERROR_OPERATION_FAILED;
1057         } else
1058                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] get audio format : type(%d), rate(%d), channel(%d)", *type, *rate, *channels);
1059
1060         return 0;
1061 }
1062
1063 bool __supported_voice_cb(const char* language, ttsp_voice_type_e type, void* user_data)
1064 {
1065         GList** voice_list = (GList**)user_data;
1066
1067         if (NULL == language || NULL == voice_list) {
1068                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL in voice list callback!!!!");
1069                 return false;
1070         }
1071
1072         SLOG(LOG_DEBUG, get_tag(), "-- Language(%s), Type(%d)", language, type);
1073
1074         voice_s* voice = g_malloc0(sizeof(voice_s));
1075         voice->language = strdup(language);
1076         voice->type = type;
1077
1078         *voice_list = g_list_append(*voice_list, voice);
1079
1080         return true;
1081 }
1082
1083 int ttsd_engine_get_voice_list(GList** voice_list)
1084 {
1085         if (false == g_agent_init) {
1086                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1087                 return TTSD_ERROR_OPERATION_FAILED;
1088         }
1089
1090         if (false == g_cur_engine.is_loaded) {
1091                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1092                 return TTSD_ERROR_OPERATION_FAILED;
1093         }
1094
1095         if (NULL == g_cur_engine.pefuncs->foreach_voices) {
1096                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
1097                 return TTSD_ERROR_OPERATION_FAILED;
1098         }
1099
1100         int ret = 0;
1101         ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, (void*)voice_list);
1102         if (0 != ret) {
1103                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Fail to get voice list : result(%d)", ret);
1104                 return TTSD_ERROR_OPERATION_FAILED;
1105         }
1106
1107         return 0;
1108 }
1109
1110 int ttsd_engine_get_default_voice( char** lang, ttsp_voice_type_e* vctype )
1111 {
1112         if (false == g_agent_init) {
1113                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1114                 return TTSD_ERROR_OPERATION_FAILED;
1115         }
1116
1117         if (false == g_cur_engine.is_loaded) {
1118                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1119                 return TTSD_ERROR_OPERATION_FAILED;
1120         }
1121
1122         if (NULL == lang || NULL == vctype) {
1123                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] BAD Parameter");
1124                 return TTSD_ERROR_INVALID_PARAMETER;
1125         }
1126
1127         if (NULL != g_cur_engine.default_lang) {
1128                 *lang = g_strdup(g_cur_engine.default_lang);
1129                 *vctype = g_cur_engine.default_vctype;
1130
1131                 SLOG(LOG_DEBUG, get_tag(), "[Engine] Get default voice : language(%s), type(%d)", *lang, *vctype);
1132         } else {
1133                 if (NULL == g_cur_engine.pefuncs->foreach_voices) {
1134                         SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] get_voice_list of engine is NULL!!");
1135                         return TTSD_ERROR_OPERATION_FAILED;
1136                 }
1137
1138                 /* get language list */
1139                 int ret;
1140                 GList* voice_list = NULL;
1141
1142                 ret = g_cur_engine.pefuncs->foreach_voices(__supported_voice_cb, &voice_list);
1143
1144                 if (0 == ret && 0 < g_list_length(voice_list)) {
1145                         GList *iter = NULL;
1146                         voice_s* voice;
1147
1148                         iter = g_list_first(voice_list);
1149
1150                         if (NULL != iter) {
1151                                 voice = iter->data;
1152
1153                                 if (true != g_cur_engine.pefuncs->is_valid_voice(voice->language, voice->type)) {
1154                                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail voice is NOT valid ");
1155                                         return TTSD_ERROR_OPERATION_FAILED;
1156                                 }
1157
1158                                 ttsd_config_set_default_voice(voice->language, (int)voice->type);
1159
1160                                 if (NULL != g_cur_engine.default_lang)
1161                                         g_free(g_cur_engine.default_lang);
1162
1163                                 g_cur_engine.default_lang = g_strdup(voice->language);
1164                                 g_cur_engine.default_vctype = voice->type;
1165
1166                                 *lang = g_strdup(g_cur_engine.default_lang);
1167                                 *vctype = g_cur_engine.default_vctype = voice->type;
1168
1169                                 SLOG(LOG_DEBUG, get_tag(), "[Engine] Get default voice (New selected) : language(%s), type(%d)", *lang, *vctype);
1170                         } else {
1171                                 SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)", ret);
1172                                 return TTSD_ERROR_OPERATION_FAILED;
1173                         }
1174
1175                         __free_voice_list(voice_list);
1176                 } else {
1177                         SLOG(LOG_ERROR, get_tag(), "[Engine ERROR] Fail to get language list : result(%d)", ret);
1178                         return TTSD_ERROR_OPERATION_FAILED;
1179                 }
1180         }
1181
1182         return 0;
1183 }
1184
1185 /*
1186 * TTS Engine Interfaces for setting
1187 */
1188 int ttsd_engine_setting_get_engine_list(GList** engine_list)
1189 {
1190         if (false == g_agent_init) {
1191                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1192                 return TTSD_ERROR_OPERATION_FAILED;
1193         }
1194
1195         if (NULL == engine_list) {
1196                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL" );
1197                 return TTSD_ERROR_INVALID_PARAMETER;
1198         }
1199
1200         /* update engine list */
1201         if (0 != __internal_update_engine_list()) {
1202                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail __internal_update_engine_list()");
1203                 return TTSD_ERROR_OPERATION_FAILED;
1204         }
1205
1206         GList *iter = NULL;
1207         ttsengine_info_s *data = NULL;
1208
1209         iter = g_list_first(g_engine_list);
1210
1211         SLOG(LOG_DEBUG, get_tag(), "----- [Engine Agent] engine list -----");
1212
1213         while (NULL != iter) {
1214                 engine_s* temp_engine;
1215
1216                 temp_engine = (engine_s*)g_malloc0(sizeof(engine_s));
1217
1218                 data = iter->data;
1219
1220                 temp_engine->engine_id = strdup(data->engine_uuid);
1221                 temp_engine->engine_name = strdup(data->engine_name);
1222                 temp_engine->ug_name = strdup(data->setting_ug_path);
1223
1224                 *engine_list = g_list_append(*engine_list, temp_engine);
1225
1226                 iter = g_list_next(iter);
1227
1228                 SLOG(LOG_DEBUG, get_tag(), " -- engine id(%s) engine name(%s) ug name(%s)",
1229                         temp_engine->engine_id, temp_engine->engine_name, temp_engine->ug_name);
1230
1231         }
1232
1233         SLOG(LOG_DEBUG, get_tag(), "--------------------------------------");
1234
1235         return 0;
1236 }
1237
1238 int ttsd_engine_setting_get_engine(char** engine_id)
1239 {
1240         if (false == g_agent_init) {
1241                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1242                 return TTSD_ERROR_OPERATION_FAILED;
1243         }
1244
1245         if (false == g_cur_engine.is_loaded) {
1246                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1247                 return TTSD_ERROR_ENGINE_NOT_FOUND;
1248         }
1249
1250         *engine_id = strdup(g_cur_engine.engine_uuid);
1251
1252         return 0;
1253 }
1254
1255 int ttsd_engine_setting_set_engine(const char* engine_id)
1256 {
1257         if (false == g_agent_init) {
1258                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1259                 return TTSD_ERROR_OPERATION_FAILED;
1260         }
1261
1262         /* compare current engine and new engine.*/
1263         if (0 == strncmp(g_cur_engine.engine_uuid, engine_id, strlen(engine_id))) {
1264                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent] new engine(%s) is the same as current engine(%s)", engine_id, g_cur_engine.engine_uuid);
1265                 return 0;
1266         }
1267
1268         char* tmp_uuid = NULL;
1269         tmp_uuid = strdup(g_cur_engine.engine_uuid);
1270
1271         /* unload engine */
1272         if (0 != ttsd_engine_agent_unload_current_engine()) {
1273                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent Error] fail to unload current engine");
1274         } else {
1275                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] unload current engine");
1276         }
1277
1278         /* change current engine */
1279         if (0 != __internal_set_current_engine(engine_id)) {
1280                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail __internal_set_current_engine()");
1281
1282                 /* roll back to old current engine. */
1283                 __internal_set_current_engine(tmp_uuid);
1284                 ttsd_engine_agent_load_current_engine();
1285
1286                 if (tmp_uuid != NULL)
1287                         free(tmp_uuid);
1288
1289                 return TTSD_ERROR_OPERATION_FAILED;
1290         }
1291
1292         /* load engine */
1293         if (0 != ttsd_engine_agent_load_current_engine()) {
1294                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent Error] fail to load new engine");
1295
1296                 if( tmp_uuid != NULL )
1297                         free(tmp_uuid);
1298
1299                 return TTSD_ERROR_OPERATION_FAILED;
1300         } else {
1301                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] load new engine");
1302         }
1303
1304         /* save engine id to config */
1305         if (0 != ttsd_config_set_default_engine(engine_id)) {
1306                 SLOG(LOG_WARN, get_tag(), "[Engine Agent WARNING] Fail to save engine id to config");
1307         }
1308
1309         if (tmp_uuid != NULL)
1310                 free(tmp_uuid);
1311
1312         return 0;
1313 }
1314
1315 int ttsd_engine_setting_get_voice_list(char** engine_id, GList** voice_list)
1316 {
1317         if (false == g_agent_init) {
1318                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1319                 return TTSD_ERROR_OPERATION_FAILED;
1320         }
1321
1322         if (false == g_cur_engine.is_loaded) {
1323                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1324                 return TTSD_ERROR_OPERATION_FAILED;
1325         }
1326
1327         int ret = 0;
1328
1329         /* get language list from engine*/
1330         ret = ttsd_engine_get_voice_list(voice_list);
1331         if (0 != ret) {
1332                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail ttsd_engine_get_voice_list() ");
1333                 return ret;
1334         }
1335
1336         *engine_id = strdup(g_cur_engine.engine_uuid);
1337
1338         return 0;
1339 }
1340
1341 int ttsd_engine_setting_get_default_voice(char** language, ttsp_voice_type_e* vctype)
1342 {
1343         if (false == g_agent_init) {
1344                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1345                 return TTSD_ERROR_OPERATION_FAILED;
1346         }
1347
1348         if (false == g_cur_engine.is_loaded) {
1349                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1350                 return TTSD_ERROR_OPERATION_FAILED;
1351         }
1352
1353         /* get current language from engine*/
1354         int ret = 0;
1355         char* temp_lang;
1356         ttsp_voice_type_e temp_int;
1357
1358         ret = ttsd_engine_get_default_voice(&temp_lang, &temp_int);
1359         if (0 != ret) {
1360                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail ttsd_engine_get_default_voice()");
1361                 return ret;
1362         }
1363
1364         if (NULL != temp_lang) {
1365                 *language = strdup(temp_lang);
1366                 *vctype = temp_int;
1367                 free(temp_lang);
1368         } else {
1369                 SLOG(LOG_ERROR, get_tag(), "[Server Error] fail to get default language");
1370                 return TTSD_ERROR_OPERATION_FAILED;
1371         }
1372
1373         return 0;
1374 }
1375
1376 int ttsd_engine_setting_set_default_voice(const char* language, ttsp_voice_type_e vctype)
1377 {
1378         if (false == g_agent_init) {
1379                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1380                 return TTSD_ERROR_OPERATION_FAILED;
1381         }
1382
1383         if (false == g_cur_engine.is_loaded) {
1384                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1385                 return TTSD_ERROR_OPERATION_FAILED;
1386         }
1387
1388         if (NULL == g_cur_engine.pefuncs->is_valid_voice) {
1389                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] The function of engine is NULL!!");
1390                 return TTSD_ERROR_OPERATION_FAILED;
1391         }
1392
1393         int ret = -1;
1394         if(false == g_cur_engine.pefuncs->is_valid_voice(language, vctype)) {
1395                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Voice is NOT valid !!");
1396                 return TTSD_ERROR_INVALID_VOICE;
1397         }
1398
1399         if (NULL != g_cur_engine.default_lang)
1400                 free(g_cur_engine.default_lang);
1401
1402         g_cur_engine.default_lang = strdup(language);
1403         g_cur_engine.default_vctype = vctype;
1404
1405         ret = ttsd_config_set_default_voice(language, (int)vctype);
1406         if (0 == ret) {
1407                 SLOG(LOG_DEBUG, get_tag(), "[Engine Agent SUCCESS] Set default voice : lang(%s), type(%d)",
1408                                 g_cur_engine.default_lang, g_cur_engine.default_vctype);
1409         } else {
1410                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to write default voice to config (%d)", ret);
1411         }
1412
1413         return 0;
1414 }
1415
1416 int ttsd_engine_setting_get_default_speed(ttsp_speed_e* speed)
1417 {
1418         if (false == g_agent_init) {
1419                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1420                 return TTSD_ERROR_OPERATION_FAILED;
1421         }
1422
1423         if (false == g_cur_engine.is_loaded) {
1424                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1425                 return TTSD_ERROR_OPERATION_FAILED;
1426         }
1427
1428         /* get current language */
1429         *speed = g_cur_engine.default_speed;
1430
1431         return 0;
1432 }
1433
1434 int ttsd_engine_setting_set_default_speed(const ttsp_speed_e speed)
1435 {
1436         if (false == g_agent_init) {
1437                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1438                 return TTSD_ERROR_OPERATION_FAILED;
1439         }
1440
1441         if (false == g_cur_engine.is_loaded) {
1442                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1443                 return TTSD_ERROR_OPERATION_FAILED;
1444         }
1445
1446         g_cur_engine.default_speed = speed;
1447
1448         if (0 != ttsd_config_set_default_speed(speed)) {
1449                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set default speed to config");
1450         }
1451
1452         return 0;
1453 }
1454
1455 bool __engine_setting_cb(const char* key, const char* value, void* user_data)
1456 {
1457         GList** engine_setting_list = (GList**)user_data;
1458
1459         if (NULL == engine_setting_list || NULL == key || NULL == value) {
1460                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL in engine setting callback!!!!");
1461                 return false;
1462         }
1463
1464         engine_setting_s* temp = g_malloc0(sizeof(engine_setting_s));
1465         temp->key = g_strdup(key);
1466         temp->value = g_strdup(value);
1467
1468         *engine_setting_list = g_list_append(*engine_setting_list, temp);
1469
1470         return true;
1471 }
1472
1473
1474 int ttsd_engine_setting_get_engine_setting_info(char** engine_id, GList** setting_list)
1475 {
1476         if (false == g_agent_init) {
1477                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1478                 return TTSD_ERROR_OPERATION_FAILED;
1479         }
1480
1481         if (false == g_cur_engine.is_loaded) {
1482                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1483                 return TTSD_ERROR_OPERATION_FAILED;
1484         }
1485
1486         if (NULL == setting_list) {
1487                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Input parameter is NULL");
1488                 return TTSD_ERROR_INVALID_PARAMETER;
1489         }
1490
1491         if (NULL == g_cur_engine.pefuncs->foreach_engine_setting) {
1492                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] foreach_engine_setting() of engine is NULL!!");
1493                 return TTSD_ERROR_OPERATION_FAILED;
1494         }
1495
1496         /* get setting info and move setting info to input parameter */
1497         int result = 0;
1498
1499         result = g_cur_engine.pefuncs->foreach_engine_setting(__engine_setting_cb, setting_list);
1500
1501         if (0 == result && 0 < g_list_length(*setting_list)) {
1502                 *engine_id = strdup(g_cur_engine.engine_uuid);
1503         } else {
1504                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to get setting info : result(%d)", result);
1505                 result = TTSD_ERROR_OPERATION_FAILED;
1506         }
1507
1508         return result;
1509 }
1510
1511 int ttsd_engine_setting_set_engine_setting(const char* key, const char* value)
1512 {
1513         if (false == g_agent_init) {
1514                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not Initialized" );
1515                 return TTSD_ERROR_OPERATION_FAILED;
1516         }
1517
1518         if (false == g_cur_engine.is_loaded) {
1519                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] Not loaded engine");
1520                 return TTSD_ERROR_OPERATION_FAILED;
1521         }
1522
1523         if (NULL == g_cur_engine.pefuncs->set_engine_setting) {
1524                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] set_setting_info of engine is NULL!!");
1525                 return TTSD_ERROR_OPERATION_FAILED;
1526         }
1527
1528         /* get setting info and move setting info to input parameter */
1529         int ret = 0;
1530         ret = g_cur_engine.pefuncs->set_engine_setting(key, value);
1531
1532         if (0 != ret) {
1533                 SLOG(LOG_ERROR, get_tag(), "[Engine Agent ERROR] fail to set engine setting : result(%d)", ret);
1534                 return TTSD_ERROR_OPERATION_FAILED;
1535         }
1536
1537         return 0;
1538 }
1539
1540 void __free_voice_list(GList* voice_list)
1541 {
1542         GList *iter = NULL;
1543         voice_s* data = NULL;
1544
1545         /* if list have item */
1546         if (g_list_length(voice_list) > 0) {
1547                 /* Get a first item */
1548                 iter = g_list_first(voice_list);
1549
1550                 while (NULL != iter) {
1551                         data = iter->data;
1552
1553                         if (NULL != data) {
1554                                 if (NULL != data->language)
1555                                         g_free(data->language);
1556
1557                                 g_free(data);
1558                         }
1559
1560                         voice_list = g_list_remove_link(voice_list, iter);
1561
1562                         iter = g_list_first(voice_list);
1563                 }
1564         }
1565 }
1566
1567 /*
1568 * TTS Engine Callback Functions                                                                                 `                                 *
1569 */
1570 bool __result_cb(ttsp_result_event_e event, const void* data, unsigned int data_size, void *user_data)
1571 {
1572         g_result_cb(event, data, data_size, user_data);
1573
1574         return true;
1575 }
1576
1577 /* function for debugging */
1578 int ttsd_print_enginelist()
1579 {
1580         GList *iter = NULL;
1581         ttsengine_info_s *data = NULL;
1582
1583         if (g_list_length(g_engine_list) > 0) {
1584                 iter = g_list_first(g_engine_list);
1585
1586                 SLOG(LOG_DEBUG, get_tag(), "----- engine list -----");
1587
1588                 int i = 1;
1589                 while (NULL != iter) {
1590                         data = iter->data;
1591
1592                         SLOG(LOG_DEBUG, get_tag(), "[%dth]", i);
1593                         SLOG(LOG_DEBUG, get_tag(), "engine uuid : %s", data->engine_uuid);
1594                         SLOG(LOG_DEBUG, get_tag(), "engine name : %s", data->engine_name);
1595                         SLOG(LOG_DEBUG, get_tag(), "engine path : %s", data->engine_path);
1596                         SLOG(LOG_DEBUG, get_tag(), "setting ug path : %s", data->setting_ug_path);
1597
1598                         iter = g_list_next(iter);
1599                         i++;
1600                 }
1601                 SLOG(LOG_DEBUG, get_tag(), "-----------------------");
1602                 SLOG(LOG_DEBUG, get_tag(), "  ");
1603         } else {
1604                 SLOG(LOG_DEBUG, get_tag(), "----- engine list -----");
1605                 SLOG(LOG_DEBUG, get_tag(), "No Engine in directory");
1606                 SLOG(LOG_DEBUG, get_tag(), "-----------------------");
1607         }
1608
1609         return 0;
1610 }
1611
1612
1613
1614
1615
1616
1617