server/sttd_recorder.c

   1 /*
   2 *  Copyright (c) 2011-2014 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 #ifdef TV_PRODUCT
  15 #define TV_BT_MODE
  16 #endif
  17
  18 #include <audio_io.h>
  19 #include <Ecore.h>
  20 #include <math.h>
  21 #include <pthread.h>
  22 #include <sound_manager.h>
  23 #ifdef TV_BT_MODE
  24 #include <bluetooth.h>
  25 #endif
  26
  27 #include "stt_defs.h"
  28 #include "sttd_dbus.h"
  29 #include "sttd_recorder.h"
  30 #include "sttd_main.h"
  31 #include "sttp.h"
  32
  33
  34 #define FRAME_LENGTH 160
  35 #define BUFFER_LENGTH FRAME_LENGTH * 2
  36
  37 static pthread_mutex_t sttd_audio_in_handle_mutex = PTHREAD_MUTEX_INITIALIZER;
  38
  39 typedef enum {
  40         STTD_RECORDER_STATE_NONE = -1,
  41         STTD_RECORDER_STATE_READY = 0,  /**< Recorder is ready to start */
  42         STTD_RECORDER_STATE_RECORDING   /**< In the middle of recording */
  43 } sttd_recorder_state;
  44
  45 typedef struct {
  46         int                     engine_id;
  47         int                     uid;
  48         audio_in_h              audio_h;
  49         sttp_audio_type_e       audio_type;
  50 } stt_recorder_s;
  51
  52 static GSList *g_recorder_list;
  53
  54 static int g_recording_engine_id;
  55
  56 static stt_recorder_audio_cb    g_audio_cb;
  57
  58 static sound_stream_info_h      g_stream_info_h;
  59
  60 static stt_recorder_interrupt_cb        g_interrupt_cb;
  61
  62 static sttd_recorder_state      g_recorder_state = STTD_RECORDER_STATE_NONE;
  63
  64 static int g_buffer_count;
  65
  66 /* Sound buf save for test */
  67 /*
  68 #define BUF_SAVE_MODE
  69 */
  70 #ifdef BUF_SAVE_MODE
  71 static char g_temp_file_name[128] = {'\0',};
  72
  73 static FILE* g_pFile;
  74
  75 static int g_count = 1;
  76 #endif
  77
  78 #ifdef TV_BT_MODE
  79 static float get_volume_decibel(char* data, int size, sttp_audio_type_e type);
  80
  81 static stt_recorder_s* __get_recorder(int engine_id);
  82
  83 static int g_bt_extend_count;
  84
  85 #define SMART_CONTROL_EXTEND_CMD        0x03
  86 #define SMART_CONTROL_START_CMD         0x04
  87
  88 static void _bt_cb_hid_state_changed(int result, bool connected, const char *remote_address, void *user_data)
  89 {
  90         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Bluetooth Event [%d] Received address [%s]", result, remote_address);
  91 }
  92
  93 static void _bt_hid_audio_data_receive_cb(bt_hid_voice_data_s *voice_data, void *user_data)
  94 {
  95         if (STTD_RECORDER_STATE_RECORDING != g_recorder_state) {
  96                 /* SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Exit audio reading normal func"); */
  97                 return;
  98         }
  99
 100         if (NULL != g_audio_cb) {
 101                 if (0 != g_audio_cb((void*)voice_data->audio_buf, (unsigned int)voice_data->length)) {
 102                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to read audio");
 103                         sttd_recorder_stop(g_recording_engine_id);
 104                 }
 105
 106                 stt_recorder_s* recorder;
 107                 recorder = __get_recorder(g_recording_engine_id);
 108                 if (NULL == recorder) {
 109                         return;
 110                 }
 111
 112                 float vol_db = get_volume_decibel((char*)voice_data->audio_buf, (int)voice_data->length, recorder->audio_type);
 113                 if (0 != sttdc_send_set_volume(recorder->uid, vol_db)) {
 114                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder] Fail to send recording volume(%f)", vol_db);
 115                 }
 116         }
 117
 118         if (0 == g_buffer_count || 0 == g_buffer_count % 50) {
 119                 SLOG(LOG_WARN, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", g_buffer_count, voice_data->length);
 120
 121                 if (0 == g_bt_extend_count % 5 && 0 != g_buffer_count) {
 122                         const unsigned char input_data[2] = {SMART_CONTROL_EXTEND_CMD, 0x10 };
 123                         if (BT_ERROR_NONE != bt_hid_send_rc_command(NULL, input_data, sizeof(input_data))) {
 124                                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_send_rc_command(NULL, %s, %d)", input_data, sizeof(input_data));
 125                         } else {
 126                                 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Extend bt audio recorder");
 127                         }
 128                 }
 129                 g_bt_extend_count++;
 130
 131                 if (100000 == g_buffer_count) {
 132                         g_buffer_count = 0;
 133                 }
 134         }
 135
 136         g_buffer_count++;
 137
 138 #ifdef BUF_SAVE_MODE
 139         /* write pcm buffer */
 140         fwrite(data, 1, len, g_pFile);
 141 #endif
 142         return;
 143 }
 144 #endif
 145
 146
 147 const char* __stt_get_focus_changed_reason_code(sound_stream_focus_change_reason_e reason)
 148 {
 149         switch (reason) {
 150         case SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA:                       return "SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA";
 151         case SOUND_STREAM_FOCUS_CHANGED_BY_SYSTEM:                      return "SOUND_STREAM_FOCUS_CHANGED_BY_SYSTEM";
 152         case SOUND_STREAM_FOCUS_CHANGED_BY_ALARM:                       return "SOUND_STREAM_FOCUS_CHANGED_BY_ALARM";
 153         case SOUND_STREAM_FOCUS_CHANGED_BY_NOTIFICATION:        return "SOUND_STREAM_FOCUS_CHANGED_BY_NOTIFICATION";
 154         case SOUND_STREAM_FOCUS_CHANGED_BY_EMERGENCY:           return "SOUND_STREAM_FOCUS_CHANGED_BY_EMERGENCY";
 155         case SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_INFORMATION:   return "SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_INFORMATION";
 156         case SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_RECOGNITION:   return "SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_RECOGNITION";
 157         case SOUND_STREAM_FOCUS_CHANGED_BY_RINGTONE:            return "SOUND_STREAM_FOCUS_CHANGED_BY_RINGTONE";
 158         case SOUND_STREAM_FOCUS_CHANGED_BY_VOIP:                        return "SOUND_STREAM_FOCUS_CHANGED_BY_VOIP";
 159         case SOUND_STREAM_FOCUS_CHANGED_BY_CALL:                        return "SOUND_STREAM_FOCUS_CHANGED_BY_CALL";
 160         case SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA_EXTERNAL_ONLY: return "SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA_EXTERNAL_ONLY";
 161         default:                                                                                        return "Undefined reason code";
 162         }
 163 }
 164
 165 void __recorder_focus_state_cb(sound_stream_info_h stream_info, sound_stream_focus_change_reason_e reason, const char *extra_info, void *user_data)
 166 {
 167         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Focus state changed cb");
 168
 169         if (stream_info != g_stream_info_h) {
 170                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Invalid stream info handle");
 171                 return;
 172         }
 173
 174         int ret;
 175         sound_stream_focus_state_e state_for_recording;
 176         ret = sound_manager_get_focus_state(g_stream_info_h, NULL, &state_for_recording);
 177         if (SOUND_MANAGER_ERROR_NONE != ret) {
 178                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to get focus state");
 179                 return;
 180         }
 181
 182         SLOG(LOG_WARN, TAG_STTD, "[Recorder] focus state changed to (%d) with reason(%s)", (int)state_for_recording, __stt_get_focus_changed_reason_code(reason));
 183
 184         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state && SOUND_STREAM_FOCUS_STATE_RELEASED == state_for_recording) {
 185                 SLOG(LOG_WARN, TAG_STTD, "[Recorder] Focus released as interrupt");
 186                 if (NULL != g_interrupt_cb) {
 187                         g_interrupt_cb();
 188                 }
 189         }
 190 }
 191
 192
 193 int sttd_recorder_initialize(stt_recorder_audio_cb audio_cb, stt_recorder_interrupt_cb interrupt_cb)
 194 {
 195         if (NULL == audio_cb || NULL == interrupt_cb) {
 196                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input param is NOT valid");
 197                 return STTD_ERROR_INVALID_PARAMETER;
 198         }
 199
 200         if (STTD_RECORDER_STATE_NONE != g_recorder_state) {
 201                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Current state of recorder is recording");
 202                 return STTD_ERROR_INVALID_STATE;
 203         }
 204
 205         if (0 != pthread_mutex_init(&sttd_audio_in_handle_mutex, NULL)) {
 206                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to initialize audio in handle mutex.");
 207         }
 208
 209         g_audio_cb = audio_cb;
 210         g_interrupt_cb = interrupt_cb;
 211         g_recorder_state = STTD_RECORDER_STATE_NONE;
 212         g_recording_engine_id = -1;
 213
 214         if (0 != sound_manager_create_stream_information(SOUND_STREAM_TYPE_VOICE_RECOGNITION, __recorder_focus_state_cb, NULL, &g_stream_info_h)) {
 215                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create stream info");
 216         }
 217
 218 #ifdef TV_BT_MODE
 219         if (BT_ERROR_NONE != bt_initialize()) {
 220                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to init bt");
 221                 return STTD_ERROR_OPERATION_FAILED;
 222         }
 223
 224         if (BT_ERROR_NONE != bt_hid_host_initialize(_bt_cb_hid_state_changed, NULL)) {
 225                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_host_initialize()");
 226                 return STTD_ERROR_OPERATION_FAILED;
 227         }
 228 #endif
 229
 230         return 0;
 231 }
 232
 233 int sttd_recorder_deinitialize()
 234 {
 235         if (0 != pthread_mutex_destroy(&sttd_audio_in_handle_mutex)) {
 236                 SLOG(LOG_ERROR, TAG_STTD, "[Server ERROR] Fail to destroy audio in handle mutex.");
 237         }
 238
 239         if (0 != sound_manager_destroy_stream_information(g_stream_info_h)) {
 240                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy stream info");
 241         }
 242
 243         /* Remove all recorder */
 244         GSList *iter = NULL;
 245         stt_recorder_s *recorder = NULL;
 246
 247         iter = g_slist_nth(g_recorder_list, 0);
 248
 249         while (NULL != iter) {
 250                 recorder = iter->data;
 251
 252                 if (NULL != recorder) {
 253                         g_recorder_list = g_slist_remove(g_recorder_list, recorder);
 254                         audio_in_destroy(recorder->audio_h);
 255
 256                         free(recorder);
 257                 }
 258
 259                 iter = g_slist_nth(g_recorder_list, 0);
 260         }
 261
 262 #ifdef TV_BT_MODE
 263         bt_hid_host_deinitialize ();
 264
 265         bt_deinitialize();
 266 #endif
 267
 268         g_recorder_state = STTD_RECORDER_STATE_NONE;
 269
 270         return 0;
 271 }
 272
 273 static stt_recorder_s* __get_recorder(int engine_id)
 274 {
 275         GSList *iter = NULL;
 276         stt_recorder_s *recorder = NULL;
 277
 278         iter = g_slist_nth(g_recorder_list, 0);
 279
 280         while (NULL != iter) {
 281                 recorder = iter->data;
 282
 283                 if (recorder->engine_id == engine_id) {
 284                         return recorder;
 285                 }
 286
 287                 iter = g_slist_next(iter);
 288         }
 289
 290         return NULL;
 291 }
 292
 293 int sttd_recorder_set_audio_session()
 294 {
 295         return 0;
 296 }
 297
 298 int sttd_recorder_unset_audio_session()
 299 {
 300         return 0;
 301 }
 302
 303 int sttd_recorder_create(int engine_id, int uid, sttp_audio_type_e type, int channel, unsigned int sample_rate)
 304 {
 305         /* Check engine id is valid */
 306         if (NULL != __get_recorder(engine_id)) {
 307                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is already registered");
 308                 return STTD_ERROR_INVALID_PARAMETER;
 309         }
 310
 311         audio_in_h temp_in_h = NULL;
 312
 313 #ifndef TV_BT_MODE
 314         audio_channel_e audio_ch;
 315         audio_sample_type_e audio_type;
 316
 317         switch (channel) {
 318         case 1: audio_ch = AUDIO_CHANNEL_MONO;          break;
 319         case 2: audio_ch = AUDIO_CHANNEL_STEREO;        break;
 320         default:
 321                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input channel is not supported");
 322                 return STTD_ERROR_OPERATION_FAILED;
 323                 break;
 324         }
 325
 326         switch (type) {
 327         case STTP_AUDIO_TYPE_PCM_S16_LE:        audio_type = AUDIO_SAMPLE_TYPE_S16_LE;  break;
 328         case STTP_AUDIO_TYPE_PCM_U8:            audio_type = AUDIO_SAMPLE_TYPE_U8;      break;
 329         default:
 330                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Invalid Audio Type");
 331                 return STTD_ERROR_OPERATION_FAILED;
 332                 break;
 333         }
 334
 335         int ret;
 336         ret = audio_in_create(sample_rate, audio_ch, audio_type, &temp_in_h);
 337         if (AUDIO_IO_ERROR_NONE != ret) {
 338                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create audio handle : %d", ret);
 339                 return STTD_ERROR_OPERATION_FAILED;
 340         }
 341 #else
 342         if (BT_ERROR_NONE != bt_hid_set_audio_data_receive_cb(_bt_hid_audio_data_receive_cb, NULL)) {
 343                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_set_audio_data_receive_cb()");
 344                 return STTD_ERROR_OPERATION_FAILED;
 345         }
 346 #endif
 347
 348         stt_recorder_s* recorder;
 349         recorder = (stt_recorder_s*)calloc(1, sizeof(stt_recorder_s));
 350         if (NULL == recorder) {
 351 #ifndef TV_BT_MODE
 352                 audio_in_destroy(temp_in_h);
 353 #endif
 354                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to allocate memory");
 355                 return STTD_ERROR_OUT_OF_MEMORY;
 356         }
 357
 358         recorder->engine_id = engine_id;
 359         recorder->uid = uid;
 360         recorder->audio_h = temp_in_h;
 361         recorder->audio_type = type;
 362
 363         g_recorder_list = g_slist_append(g_recorder_list, recorder);
 364
 365         g_recorder_state = STTD_RECORDER_STATE_READY;
 366
 367         return 0;
 368 }
 369
 370 int sttd_recorder_destroy(int engine_id)
 371 {
 372         // critical section required because this function can be called from stt engine thread context
 373         SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Enter critical section");
 374         pthread_mutex_lock(&sttd_audio_in_handle_mutex);
 375
 376         /* Check engine id is valid */
 377         stt_recorder_s* recorder;
 378         recorder = __get_recorder(engine_id);
 379         if (NULL == recorder) {
 380                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
 381                 pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
 382                 return STTD_ERROR_INVALID_PARAMETER;
 383         }
 384
 385 #ifndef TV_BT_MODE
 386         int ret;
 387         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state) {
 388                 ret = audio_in_unprepare(recorder->audio_h);
 389                 if (AUDIO_IO_ERROR_NONE != ret) {
 390                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
 391                 }
 392
 393                 g_recorder_state = STTD_RECORDER_STATE_READY;
 394         }
 395
 396         ret = audio_in_destroy(recorder->audio_h);
 397         if (AUDIO_IO_ERROR_NONE != ret) {
 398                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy audioin : %d", ret);
 399         }
 400 #else
 401         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state) {
 402                 g_recorder_state = STTD_RECORDER_STATE_READY;
 403         }
 404
 405         bt_hid_unset_audio_data_receive_cb();
 406 #endif
 407
 408         g_recorder_list = g_slist_remove(g_recorder_list, recorder);
 409
 410         free(recorder);
 411
 412         pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
 413         SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Leave critical section");
 414
 415         return 0;
 416 }
 417
 418 static float get_volume_decibel(char* data, int size, sttp_audio_type_e type)
 419 {
 420         #define MAX_AMPLITUDE_MEAN_16   32768
 421         #define MAX_AMPLITUDE_MEAN_08   128
 422
 423         int i, depthByte;
 424         int count = 0;
 425
 426         float db = 0.0;
 427         float rms = 0.0;
 428         unsigned long long square_sum = 0;
 429
 430         if (type == STTP_AUDIO_TYPE_PCM_S16_LE)
 431                 depthByte = 2;
 432         else
 433                 depthByte = 1;
 434
 435         for (i = 0; i < size; i += (depthByte<<1)) {
 436                 if (depthByte == 2) {
 437                         short pcm16 = 0;
 438                         memcpy(&pcm16, data + i, sizeof(short));
 439                         square_sum += pcm16 * pcm16;
 440                 } else {
 441                         char pcm8 = 0;
 442                         memcpy(&pcm8, data + i, sizeof(char));
 443                         square_sum += pcm8 * pcm8;
 444                 }
 445                 count++;
 446         }
 447
 448         if (0 == count)
 449                 rms = 0.0;
 450         else
 451                 rms = sqrt(square_sum/count);
 452
 453         if (depthByte == 2)
 454                 db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_16);
 455         else
 456                 db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_08);
 457
 458         return db;
 459 }
 460
 461 #ifndef TV_BT_MODE
 462 Eina_Bool __read_audio_func(void *data)
 463 {
 464         int read_byte = -1;
 465         static char g_buffer[BUFFER_LENGTH];
 466
 467         /* Check engine id is valid */
 468         stt_recorder_s* recorder;
 469         recorder = __get_recorder(g_recording_engine_id);
 470         if (NULL == recorder) {
 471                 return EINA_FALSE;
 472         }
 473
 474         if (STTD_RECORDER_STATE_READY == g_recorder_state) {
 475                 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Exit audio reading func");
 476                 return EINA_FALSE;
 477         }
 478
 479         read_byte = audio_in_read(recorder->audio_h, g_buffer, BUFFER_LENGTH);
 480         if (0 > read_byte) {
 481                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail to read audio : %d", read_byte);
 482                 g_recorder_state = STTD_RECORDER_STATE_READY;
 483                 return EINA_FALSE;
 484         }
 485
 486         if (0 != g_audio_cb(g_buffer, read_byte)) {
 487                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail audio callback");
 488                 sttd_recorder_stop(g_recording_engine_id);
 489                 return EINA_FALSE;
 490         }
 491
 492         if (0 == g_buffer_count % 30) {
 493                 float vol_db = get_volume_decibel(g_buffer, BUFFER_LENGTH, recorder->audio_type);
 494                 if (0 != sttdc_send_set_volume(recorder->uid, vol_db)) {
 495                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder] Fail to send recording volume(%f)", vol_db);
 496                 }
 497         }
 498
 499         /* Audio read log */
 500         if (0 == g_buffer_count % 50) {
 501                 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", g_buffer_count, read_byte);
 502
 503                 if (100000 == g_buffer_count) {
 504                         g_buffer_count = 0;
 505                 }
 506         }
 507
 508         g_buffer_count++;
 509
 510 #ifdef BUF_SAVE_MODE
 511         /* write pcm buffer */
 512         fwrite(g_buffer, 1, BUFFER_LENGTH, g_pFile);
 513 #endif
 514
 515         return EINA_TRUE;
 516 }
 517 #endif
 518
 519 int sttd_recorder_start(int engine_id)
 520 {
 521         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state)
 522                 return 0;
 523
 524         int ret = -1;
 525 #ifndef TV_BT_MODE
 526         /* Check engine id is valid */
 527         stt_recorder_s* recorder;
 528         recorder = __get_recorder(engine_id);
 529         if (NULL == recorder) {
 530                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
 531                 return STTD_ERROR_INVALID_PARAMETER;
 532         }
 533
 534         ret = sound_manager_acquire_focus(g_stream_info_h, SOUND_STREAM_FOCUS_FOR_RECORDING, NULL);
 535         if (SOUND_MANAGER_ERROR_NONE != ret) {
 536                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to acquire focus : %d", ret);
 537         } else {
 538                 ret = audio_in_set_stream_info(recorder->audio_h, g_stream_info_h);
 539                 if (AUDIO_IO_ERROR_NONE != ret) {
 540                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to set stream info");
 541                 }
 542         }
 543
 544         ret = audio_in_prepare(recorder->audio_h);
 545         if (AUDIO_IO_ERROR_NONE != ret) {
 546                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to start audio : %d", ret);
 547                 return STTD_ERROR_RECORDER_BUSY;
 548         }
 549
 550         /* Add ecore timer to read audio data */
 551         ecore_timer_add(0, __read_audio_func, NULL);
 552
 553 #else
 554         g_bt_extend_count = 0;
 555         const unsigned char input_data[2] = {SMART_CONTROL_START_CMD, 0x00 };
 556         int bt_retry = 0;
 557         bool started = false;
 558         while (5 > bt_retry) {
 559                 ret = bt_hid_send_rc_command(NULL, input_data, sizeof(input_data));
 560                 if (BT_ERROR_NONE == ret) {
 561                         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Start bt audio recorder");
 562                         started = true;
 563                         break;
 564                 } else if (BT_ERROR_NOW_IN_PROGRESS == ret) {
 565                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_send_rc_command(NULL, %s, %d)", input_data, sizeof(input_data));
 566                         usleep(50000);
 567                         bt_retry++;
 568                 } else {
 569                         break;
 570                 }
 571         }
 572         if (false == started) {
 573                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to start bt audio");
 574                 return STTD_ERROR_OPERATION_FAILED;
 575         }
 576 #endif
 577         g_recorder_state = STTD_RECORDER_STATE_RECORDING;
 578         g_recording_engine_id = engine_id;
 579
 580         g_buffer_count = 0;
 581
 582 #ifdef BUF_SAVE_MODE
 583         g_count++;
 584
 585         snprintf(g_temp_file_name, sizeof(g_temp_file_name), "/tmp/stt_temp_%d_%d", getpid(), g_count);
 586         SECURE_SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Temp file name=[%s]", g_temp_file_name);
 587
 588         /* open test file */
 589         g_pFile = fopen(g_temp_file_name, "wb+");
 590         if (!g_pFile) {
 591                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] File not found!");
 592                 return -1;
 593         }
 594 #endif
 595
 596         return 0;
 597 }
 598
 599 int sttd_recorder_stop(int engine_id)
 600 {
 601         if (STTD_RECORDER_STATE_READY == g_recorder_state)
 602                 return 0;
 603
 604         /* Check engine id is valid */
 605         stt_recorder_s* recorder;
 606         recorder = __get_recorder(engine_id);
 607         if (NULL == recorder) {
 608                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
 609                 return STTD_ERROR_INVALID_PARAMETER;
 610         }
 611
 612         int ret;
 613 #ifndef TV_BT_MODE
 614         ret = audio_in_unprepare(recorder->audio_h);
 615         if (AUDIO_IO_ERROR_NONE != ret) {
 616                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
 617         }
 618 #else
 619         int bt_retry = 0;
 620         bool stopped = false;
 621         while (5 > bt_retry) {
 622                 ret = bt_hid_rc_stop_sending_voice(NULL);
 623                 if (BT_ERROR_NONE == ret) {
 624                         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Stop bt audio");
 625                         stopped = true;
 626                         break;
 627                 } else if (BT_ERROR_NOW_IN_PROGRESS == ret) {
 628                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_rc_stop_sending_voice()");
 629                         usleep(50000);
 630                         bt_retry++;
 631                 } else {
 632                         break;
 633                 }
 634         }
 635         if (false == stopped) {
 636                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to stop bt audio");
 637                 return STTD_ERROR_OPERATION_FAILED;
 638         }
 639 #endif
 640
 641         g_recorder_state = STTD_RECORDER_STATE_READY;
 642         g_recording_engine_id = -1;
 643
 644         ret = sound_manager_release_focus(g_stream_info_h, SOUND_STREAM_FOCUS_FOR_RECORDING, NULL);
 645         if (SOUND_MANAGER_ERROR_NONE != ret) {
 646                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to release focus :%d", ret);
 647         }
 648
 649 #ifdef BUF_SAVE_MODE
 650         fclose(g_pFile);
 651 #endif
 652
 653         return 0;
 654 }