server/sttd_recorder.c

   1 /*
   2 *  Copyright (c) 2011-2016 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_product.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
  32
  33 #define FRAME_LENGTH 160
  34 #define BUFFER_LENGTH FRAME_LENGTH * 2
  35
  36 static pthread_mutex_t sttd_audio_in_handle_mutex = PTHREAD_MUTEX_INITIALIZER;
  37
  38 typedef enum {
  39         STTD_RECORDER_STATE_NONE = -1,
  40         STTD_RECORDER_STATE_READY = 0,  /**< Recorder is ready to start */
  41         STTD_RECORDER_STATE_RECORDING   /**< In the middle of recording */
  42 } sttd_recorder_state;
  43
  44 typedef struct {
  45         int                     uid;
  46         audio_in_h              audio_h;
  47         stte_audio_type_e       audio_type;
  48 } stt_recorder_s;
  49
  50 static stt_recorder_s* g_recorder = NULL;
  51
  52 static stt_recorder_audio_cb    g_audio_cb;
  53
  54 static sound_stream_info_h      g_stream_info_h;
  55
  56 static stt_recorder_interrupt_cb        g_interrupt_cb;
  57
  58 static sttd_recorder_state      g_recorder_state = STTD_RECORDER_STATE_NONE;
  59
  60 static int g_buffer_count;
  61
  62 /* Sound buf save for test */
  63 /*
  64 #define BUF_SAVE_MODE
  65 */
  66 #ifdef BUF_SAVE_MODE
  67 static char g_temp_file_name[128] = {'\0',};
  68
  69 static FILE* g_pFile;
  70
  71 static int g_count = 1;
  72 #endif
  73
  74 #ifdef TV_BT_MODE
  75 static float get_volume_decibel(char* data, int size, stte_audio_type_e type);
  76
  77 //static stt_recorder_s* __get_recorder(int engine_id);
  78
  79 static int g_bt_extend_count;
  80
  81 #define SMART_CONTROL_EXTEND_CMD        0x03
  82 #define SMART_CONTROL_START_CMD         0x04
  83
  84 static void _bt_cb_hid_state_changed(int result, bool connected, const char *remote_address, void *user_data)
  85 {
  86         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Bluetooth Event [%d] Received address [%s]", result, remote_address);
  87 }
  88
  89 static void _bt_hid_audio_data_receive_cb(bt_hid_voice_data_s *voice_data, void *user_data)
  90 {
  91         if (STTD_RECORDER_STATE_RECORDING != g_recorder_state) {
  92                 /* SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Exit audio reading normal func"); */
  93                 return;
  94         }
  95
  96         if (NULL != g_audio_cb) {
  97                 if (0 != g_audio_cb((void*)voice_data->audio_buf, (unsigned int)voice_data->length)) {
  98                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to read audio");
  99                         sttd_recorder_stop();
 100                 }
 101
 102                 if (NULL == g_recorder) {
 103                         return;
 104                 }
 105
 106                 float vol_db = get_volume_decibel((char*)voice_data->audio_buf, (int)voice_data->length, g_recorder->audio_type);
 107                 if (0 != sttdc_send_set_volume(g_recorder->uid, vol_db)) {
 108                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder] Fail to send recording volume(%f)", vol_db);
 109                 }
 110         }
 111
 112         if (0 == g_buffer_count || 0 == g_buffer_count % 50) {
 113                 SLOG(LOG_WARN, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", g_buffer_count, voice_data->length);
 114
 115                 if (0 == g_bt_extend_count % 5 && 0 != g_buffer_count) {
 116                         const unsigned char input_data[2] = {SMART_CONTROL_EXTEND_CMD, 0x10 };
 117                         if (BT_ERROR_NONE != bt_hid_send_rc_command(NULL, input_data, sizeof(input_data))) {
 118                                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_send_rc_command(NULL, %s, %d)", input_data, sizeof(input_data));
 119                         } else {
 120                                 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Extend bt audio recorder");
 121                         }
 122                 }
 123                 g_bt_extend_count++;
 124
 125                 if (100000 == g_buffer_count) {
 126                         g_buffer_count = 0;
 127                 }
 128         }
 129
 130         g_buffer_count++;
 131
 132 #ifdef BUF_SAVE_MODE
 133         /* write pcm buffer */
 134         fwrite(data, 1, len, g_pFile);
 135 #endif
 136         return;
 137 }
 138 #endif
 139
 140
 141 const char* __stt_get_focus_changed_reason_code(sound_stream_focus_change_reason_e reason)
 142 {
 143         switch (reason) {
 144         case SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA:                       return "SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA";
 145         case SOUND_STREAM_FOCUS_CHANGED_BY_SYSTEM:                      return "SOUND_STREAM_FOCUS_CHANGED_BY_SYSTEM";
 146         case SOUND_STREAM_FOCUS_CHANGED_BY_ALARM:                       return "SOUND_STREAM_FOCUS_CHANGED_BY_ALARM";
 147         case SOUND_STREAM_FOCUS_CHANGED_BY_NOTIFICATION:        return "SOUND_STREAM_FOCUS_CHANGED_BY_NOTIFICATION";
 148         case SOUND_STREAM_FOCUS_CHANGED_BY_EMERGENCY:           return "SOUND_STREAM_FOCUS_CHANGED_BY_EMERGENCY";
 149         case SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_INFORMATION:   return "SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_INFORMATION";
 150         case SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_RECOGNITION:   return "SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_RECOGNITION";
 151         case SOUND_STREAM_FOCUS_CHANGED_BY_RINGTONE:            return "SOUND_STREAM_FOCUS_CHANGED_BY_RINGTONE";
 152         case SOUND_STREAM_FOCUS_CHANGED_BY_VOIP:                        return "SOUND_STREAM_FOCUS_CHANGED_BY_VOIP";
 153         case SOUND_STREAM_FOCUS_CHANGED_BY_CALL:                        return "SOUND_STREAM_FOCUS_CHANGED_BY_CALL";
 154         case SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA_EXTERNAL_ONLY: return "SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA_EXTERNAL_ONLY";
 155         default:                                                                                        return "Undefined reason code";
 156         }
 157 }
 158
 159 void __recorder_focus_state_cb(sound_stream_info_h stream_info, sound_stream_focus_mask_e focus_mask, sound_stream_focus_state_e focus_state,
 160                                                         sound_stream_focus_change_reason_e reason, int sound_behavior, const char *extra_info, void *user_data)
 161 {
 162         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Focus state changed cb");
 163
 164         if (stream_info != g_stream_info_h) {
 165                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Invalid stream info handle");
 166                 return;
 167         }
 168         SLOG(LOG_WARN, TAG_STTD, "[Recorder] focus state changed to (%d) with reason(%s)", (int)focus_state, __stt_get_focus_changed_reason_code(reason));
 169
 170         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state && SOUND_STREAM_FOCUS_STATE_RELEASED == focus_state) {
 171                 SLOG(LOG_WARN, TAG_STTD, "[Recorder] Focus released as interrupt");
 172                 if (NULL != g_interrupt_cb) {
 173                         g_interrupt_cb();
 174                 }
 175         }
 176 }
 177
 178
 179 int sttd_recorder_initialize(stt_recorder_audio_cb audio_cb, stt_recorder_interrupt_cb interrupt_cb)
 180 {
 181         if (NULL == audio_cb || NULL == interrupt_cb) {
 182                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input param is NOT valid");
 183                 return STTD_ERROR_INVALID_PARAMETER;
 184         }
 185
 186         if (STTD_RECORDER_STATE_NONE != g_recorder_state) {
 187                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Current state of recorder is recording");
 188                 return STTD_ERROR_INVALID_STATE;
 189         }
 190
 191         if (0 != pthread_mutex_init(&sttd_audio_in_handle_mutex, NULL)) {
 192                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to initialize audio in handle mutex.");
 193         }
 194
 195         g_audio_cb = audio_cb;
 196         g_interrupt_cb = interrupt_cb;
 197         g_recorder_state = STTD_RECORDER_STATE_NONE;
 198         g_recorder = NULL;
 199
 200         if (0 != sound_manager_create_stream_information(SOUND_STREAM_TYPE_VOICE_RECOGNITION, __recorder_focus_state_cb, NULL, &g_stream_info_h)) {
 201                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create stream info");
 202         }
 203
 204 #ifdef TV_BT_MODE
 205         if (BT_ERROR_NONE != bt_initialize()) {
 206                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to init bt");
 207                 return STTD_ERROR_OPERATION_FAILED;
 208         }
 209
 210         if (BT_ERROR_NONE != bt_hid_host_initialize(_bt_cb_hid_state_changed, NULL)) {
 211                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_host_initialize()");
 212                 return STTD_ERROR_OPERATION_FAILED;
 213         }
 214 #endif
 215
 216         return 0;
 217 }
 218
 219 int sttd_recorder_deinitialize()
 220 {
 221         if (0 != pthread_mutex_destroy(&sttd_audio_in_handle_mutex)) {
 222                 SLOG(LOG_ERROR, TAG_STTD, "[Server ERROR] Fail to destroy audio in handle mutex.");
 223         }
 224
 225         if (0 != sound_manager_destroy_stream_information(g_stream_info_h)) {
 226                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy stream info");
 227         }
 228
 229         if (NULL != g_recorder) {
 230                 audio_in_destroy(g_recorder->audio_h);
 231                 g_recorder->audio_h = NULL;
 232                 free(g_recorder);
 233                 g_recorder = NULL;
 234         }
 235
 236 #ifdef __UNUSED_CODES__
 237         /* Remove all recorder */
 238         GSList *iter = NULL;
 239         stt_recorder_s *recorder = NULL;
 240
 241         iter = g_slist_nth(g_recorder_list, 0);
 242
 243         while (NULL != iter) {
 244                 recorder = iter->data;
 245
 246                 if (NULL != recorder) {
 247                         g_recorder_list = g_slist_remove(g_recorder_list, recorder);
 248                         if (recorder->audio_h) {
 249                                 audio_in_destroy(recorder->audio_h);
 250                                 recorder->audio_h = NULL;
 251                         }
 252                         free(recorder);
 253                 }
 254
 255                 iter = g_slist_nth(g_recorder_list, 0);
 256         }
 257 #endif
 258
 259 #ifdef TV_BT_MODE
 260         bt_hid_host_deinitialize();
 261
 262         bt_deinitialize();
 263 #endif
 264
 265         g_recorder_state = STTD_RECORDER_STATE_NONE;
 266
 267         return 0;
 268 }
 269
 270 int sttd_recorder_set_audio_session()
 271 {
 272         return 0;
 273 }
 274
 275 int sttd_recorder_unset_audio_session()
 276 {
 277         return 0;
 278 }
 279
 280 int sttd_recorder_create(stte_audio_type_e type, int channel, unsigned int sample_rate)
 281 {
 282         /* Check engine id is valid */
 283         if (NULL != g_recorder) {
 284                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is already registered");
 285                 return STTD_ERROR_INVALID_PARAMETER;
 286         }
 287
 288         audio_in_h temp_in_h = NULL;
 289
 290 #ifndef TV_BT_MODE
 291         audio_channel_e audio_ch;
 292         audio_sample_type_e audio_type;
 293
 294         switch (channel) {
 295         case 1: audio_ch = AUDIO_CHANNEL_MONO;          break;
 296         case 2: audio_ch = AUDIO_CHANNEL_STEREO;        break;
 297         default:
 298                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input channel is not supported");
 299                 return STTD_ERROR_OPERATION_FAILED;
 300                 break;
 301         }
 302
 303         switch (type) {
 304         case STTE_AUDIO_TYPE_PCM_S16_LE:        audio_type = AUDIO_SAMPLE_TYPE_S16_LE;  break;
 305         case STTE_AUDIO_TYPE_PCM_U8:            audio_type = AUDIO_SAMPLE_TYPE_U8;      break;
 306         default:
 307                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Invalid Audio Type");
 308                 return STTD_ERROR_OPERATION_FAILED;
 309                 break;
 310         }
 311
 312         int ret;
 313         ret = audio_in_create(sample_rate, audio_ch, audio_type, &temp_in_h);
 314         if (AUDIO_IO_ERROR_NONE != ret) {
 315                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create audio handle : %d", ret);
 316                 return STTD_ERROR_OPERATION_FAILED;
 317         }
 318 #else
 319         if (BT_ERROR_NONE != bt_hid_set_audio_data_receive_cb(_bt_hid_audio_data_receive_cb, NULL)) {
 320                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_set_audio_data_receive_cb()");
 321                 return STTD_ERROR_OPERATION_FAILED;
 322         }
 323 #endif
 324
 325         stt_recorder_s* recorder;
 326         recorder = (stt_recorder_s*)calloc(1, sizeof(stt_recorder_s));
 327         if (NULL == recorder) {
 328 #ifndef TV_BT_MODE
 329                 if (temp_in_h) {
 330                         audio_in_destroy(temp_in_h);
 331                         temp_in_h = NULL;
 332                 }
 333 #endif
 334                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to allocate memory");
 335                 return STTD_ERROR_OUT_OF_MEMORY;
 336         }
 337
 338         recorder->uid = -1;
 339         recorder->audio_h = temp_in_h;
 340         recorder->audio_type = type;
 341
 342         g_recorder = recorder;
 343
 344         g_recorder_state = STTD_RECORDER_STATE_READY;
 345
 346         return 0;
 347 }
 348
 349 int sttd_recorder_destroy()
 350 {
 351         // critical section required because this function can be called from stt engine thread context
 352         SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Enter critical section");
 353         pthread_mutex_lock(&sttd_audio_in_handle_mutex);
 354
 355         /* Check engine id is valid */
 356         if (NULL == g_recorder) {
 357                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
 358                 pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
 359                 return STTD_ERROR_INVALID_PARAMETER;
 360         }
 361
 362 #ifndef TV_BT_MODE
 363         int ret;
 364         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state) {
 365                 if (g_recorder->audio_h) {
 366                         ret = audio_in_unprepare(g_recorder->audio_h);
 367                         if (AUDIO_IO_ERROR_NONE != ret) {
 368                                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
 369                         }
 370                 }
 371
 372                 g_recorder_state = STTD_RECORDER_STATE_READY;
 373         }
 374
 375         if (g_recorder->audio_h) {
 376                 ret = audio_in_destroy(g_recorder->audio_h);
 377                 if (AUDIO_IO_ERROR_NONE != ret) {
 378                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy audioin : %d", ret);
 379                 }
 380                 g_recorder->audio_h = NULL;
 381         }
 382
 383 #else
 384         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state) {
 385                 g_recorder_state = STTD_RECORDER_STATE_READY;
 386         }
 387
 388         bt_hid_unset_audio_data_receive_cb();
 389 #endif
 390
 391         free(g_recorder);
 392         g_recorder = NULL;
 393
 394         pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
 395         SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Leave critical section");
 396
 397         return 0;
 398 }
 399
 400 static float get_volume_decibel(char* data, int size, stte_audio_type_e type)
 401 {
 402         #define MAX_AMPLITUDE_MEAN_16   32768
 403         #define MAX_AMPLITUDE_MEAN_08   128
 404
 405         int i, depthByte;
 406         int count = 0;
 407
 408         float db = 0.0;
 409         float rms = 0.0;
 410         unsigned long long square_sum = 0;
 411
 412         if (type == STTE_AUDIO_TYPE_PCM_S16_LE)
 413                 depthByte = 2;
 414         else
 415                 depthByte = 1;
 416
 417         for (i = 0; i < size; i += (depthByte<<1)) {
 418                 if (depthByte == 2) {
 419                         short pcm16 = 0;
 420                         memcpy(&pcm16, data + i, sizeof(short));
 421                         square_sum += pcm16 * pcm16;
 422                 } else {
 423                         char pcm8 = 0;
 424                         memcpy(&pcm8, data + i, sizeof(char));
 425                         square_sum += pcm8 * pcm8;
 426                 }
 427                 count++;
 428         }
 429
 430         if (0 == count)
 431                 rms = 0.0;
 432         else
 433                 rms = sqrt((double)square_sum/count);
 434
 435         if (depthByte == 2)
 436                 db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_16);
 437         else
 438                 db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_08);
 439
 440         return db;
 441 }
 442
 443 #ifndef TV_BT_MODE
 444 Eina_Bool __read_audio_func(void *data)
 445 {
 446         int read_byte = -1;
 447         static char g_buffer[BUFFER_LENGTH];
 448
 449         /* Check engine id is valid */
 450         if (NULL == g_recorder) {
 451                 return EINA_FALSE;
 452         }
 453
 454         if (STTD_RECORDER_STATE_READY == g_recorder_state) {
 455                 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Exit audio reading func");
 456                 return EINA_FALSE;
 457         }
 458
 459         read_byte = audio_in_read(g_recorder->audio_h, g_buffer, BUFFER_LENGTH);
 460         if (0 > read_byte) {
 461                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail to read audio : %d", read_byte);
 462                 g_recorder_state = STTD_RECORDER_STATE_READY;
 463                 return EINA_FALSE;
 464         }
 465
 466         if (0 != g_audio_cb(g_buffer, read_byte)) {
 467                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail audio callback");
 468                 sttd_recorder_stop();
 469                 return EINA_FALSE;
 470         }
 471
 472         if (0 == g_buffer_count % 30) {
 473                 float vol_db = get_volume_decibel(g_buffer, BUFFER_LENGTH, g_recorder->audio_type);
 474                 if (0 != sttdc_send_set_volume(g_recorder->uid, vol_db)) {
 475                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder] Fail to send recording volume(%f)", vol_db);
 476                 }
 477         }
 478
 479         /* Audio read log */
 480         if (0 == g_buffer_count % 50) {
 481                 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", g_buffer_count, read_byte);
 482
 483                 if (100000 == g_buffer_count) {
 484                         g_buffer_count = 0;
 485                 }
 486         }
 487
 488         g_buffer_count++;
 489
 490 #ifdef BUF_SAVE_MODE
 491         /* write pcm buffer */
 492         fwrite(g_buffer, 1, BUFFER_LENGTH, g_pFile);
 493 #endif
 494
 495         return EINA_TRUE;
 496 }
 497 #endif
 498
 499 int sttd_recorder_start(int uid)
 500 {
 501         if (STTD_RECORDER_STATE_RECORDING == g_recorder_state)
 502                 return 0;
 503
 504         int ret = -1;
 505 #ifndef TV_BT_MODE
 506         /* Check engine id is valid */
 507         if (NULL == g_recorder) {
 508                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
 509                 return STTD_ERROR_INVALID_PARAMETER;
 510         }
 511
 512         ret = sound_manager_acquire_focus(g_stream_info_h, SOUND_STREAM_FOCUS_FOR_RECORDING, SOUND_BEHAVIOR_NONE, NULL);
 513         if (SOUND_MANAGER_ERROR_NONE != ret) {
 514                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to acquire focus : %d", ret);
 515         } else {
 516                 ret = audio_in_set_sound_stream_info(g_recorder->audio_h, g_stream_info_h);
 517                 if (AUDIO_IO_ERROR_NONE != ret) {
 518                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to set stream info");
 519                 }
 520         }
 521
 522         ret = audio_in_prepare(g_recorder->audio_h);
 523         if (AUDIO_IO_ERROR_NONE != ret) {
 524                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to start audio : %d", ret);
 525                 return STTD_ERROR_RECORDER_BUSY;
 526         }
 527
 528         /* Add ecore timer to read audio data */
 529         ecore_timer_add(0, __read_audio_func, NULL);
 530
 531 #else
 532         g_bt_extend_count = 0;
 533         const unsigned char input_data[2] = {SMART_CONTROL_START_CMD, 0x00 };
 534         int bt_retry = 0;
 535         bool started = false;
 536         while (5 > bt_retry) {
 537                 ret = bt_hid_send_rc_command(NULL, input_data, sizeof(input_data));
 538                 if (BT_ERROR_NONE == ret) {
 539                         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Start bt audio recorder");
 540                         started = true;
 541                         break;
 542                 } else if (BT_ERROR_NOW_IN_PROGRESS == ret) {
 543                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_send_rc_command(NULL, %s, %d)", input_data, sizeof(input_data));
 544                         usleep(50000);
 545                         bt_retry++;
 546                 } else {
 547                         break;
 548                 }
 549         }
 550         if (false == started) {
 551                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to start bt audio");
 552                 return STTD_ERROR_OPERATION_FAILED;
 553         }
 554 #endif
 555         g_recorder_state = STTD_RECORDER_STATE_RECORDING;
 556         g_recorder->uid = uid;
 557
 558         g_buffer_count = 0;
 559
 560 #ifdef BUF_SAVE_MODE
 561         g_count++;
 562
 563         snprintf(g_temp_file_name, sizeof(g_temp_file_name), "/tmp/stt_temp_%d_%d", getpid(), g_count);
 564         SECURE_SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Temp file name=[%s]", g_temp_file_name);
 565
 566         /* open test file */
 567         g_pFile = fopen(g_temp_file_name, "wb+");
 568         if (!g_pFile) {
 569                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] File not found!");
 570                 return -1;
 571         }
 572 #endif
 573
 574         return 0;
 575 }
 576
 577 int sttd_recorder_stop()
 578 {
 579         if (STTD_RECORDER_STATE_READY == g_recorder_state)
 580                 return 0;
 581
 582         /* Check engine id is valid */
 583         if (NULL == g_recorder) {
 584                 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
 585                 return STTD_ERROR_INVALID_PARAMETER;
 586         }
 587
 588         g_recorder->uid = -1;
 589
 590         int ret = -1;
 591 #ifndef TV_BT_MODE
 592         ret = audio_in_unprepare(g_recorder->audio_h);
 593         if (AUDIO_IO_ERROR_NONE != ret) {
 594                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
 595         }
 596 #else
 597         int bt_retry = 0;
 598         bool stopped = false;
 599         while (5 > bt_retry) {
 600                 ret = bt_hid_rc_stop_sending_voice(NULL);
 601                 if (BT_ERROR_NONE == ret) {
 602                         SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Stop bt audio");
 603                         stopped = true;
 604                         break;
 605                 } else if (BT_ERROR_NOW_IN_PROGRESS == ret) {
 606                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_rc_stop_sending_voice()");
 607                         usleep(50000);
 608                         bt_retry++;
 609                 } else {
 610                         SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] bt_hid_rc_stop_sending_voice(): ret(%d)", ret);
 611                         break;
 612                 }
 613         }
 614         if (false == stopped) {
 615                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to stop bt audio(%d)", ret);
 616 //              return STTD_ERROR_OPERATION_FAILED;
 617         }
 618 #endif
 619
 620         g_recorder_state = STTD_RECORDER_STATE_READY;
 621
 622         ret = sound_manager_release_focus(g_stream_info_h, SOUND_STREAM_FOCUS_FOR_RECORDING, SOUND_BEHAVIOR_NONE, NULL);
 623         if (SOUND_MANAGER_ERROR_NONE != ret) {
 624                 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to release focus :%d", ret);
 625         }
 626
 627 #ifdef BUF_SAVE_MODE
 628         fclose(g_pFile);
 629 #endif
 630
 631         return 0;
 632 }