Add critical section to avoid thread safety issue
[platform/core/uifw/stt.git] / server / sttd_recorder.c
index b300c3a..b83cc47 100644 (file)
@@ -1,5 +1,5 @@
 /*
-*  Copyright (c) 2011-2014 Samsung Electronics Co., Ltd All Rights Reserved 
+*  Copyright (c) 2011-2016 Samsung Electronics Co., Ltd All Rights Reserved
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  limitations under the License.
 */
 
+#ifdef TV_PRODUCT
+#define TV_BT_MODE
+#endif
+
 #include <audio_io.h>
 #include <Ecore.h>
 #include <math.h>
+#include <pthread.h>
 #include <sound_manager.h>
+#ifdef TV_BT_MODE
+#include <bluetooth_product.h>
+#endif
 
 #include "stt_defs.h"
+#include "sttd_dbus.h"
 #include "sttd_recorder.h"
 #include "sttd_main.h"
-#include "sttp.h"
 
 
 #define FRAME_LENGTH 160
 #define BUFFER_LENGTH FRAME_LENGTH * 2
 
+static pthread_mutex_t sttd_audio_in_handle_mutex = PTHREAD_MUTEX_INITIALIZER;
+
 typedef enum {
        STTD_RECORDER_STATE_NONE = -1,
        STTD_RECORDER_STATE_READY = 0,  /**< Recorder is ready to start */
@@ -32,25 +42,25 @@ typedef enum {
 } sttd_recorder_state;
 
 typedef struct {
-       int                     engine_id;
+       int                     uid;
        audio_in_h              audio_h;
-       sttp_audio_type_e       audio_type;
-}stt_recorder_s;
-
-static GSList *g_recorder_list;
+       stte_audio_type_e       audio_type;
+} stt_recorder_s;
 
-static int g_recording_engine_id;
+static stt_recorder_s* g_recorder = NULL;
 
 static stt_recorder_audio_cb   g_audio_cb;
 
+static sound_stream_info_h     g_stream_info_h;
+
 static stt_recorder_interrupt_cb       g_interrupt_cb;
 
 static sttd_recorder_state     g_recorder_state = STTD_RECORDER_STATE_NONE;
 
-static FILE* g_pFile_vol;
-
 static int g_buffer_count;
 
+static int g_stream_focus_id;
+
 /* Sound buf save for test */
 /*
 #define BUF_SAVE_MODE
@@ -61,37 +71,105 @@ static char g_temp_file_name[128] = {'\0',};
 static FILE* g_pFile;
 
 static int g_count = 1;
-#endif 
+#endif
+
+#ifdef TV_BT_MODE
+static float get_volume_decibel(char* data, int size, stte_audio_type_e type);
+
+//static stt_recorder_s* __get_recorder(int engine_id);
+
+static int g_bt_extend_count;
 
-const char* __stt_get_session_interrupt_code(sound_session_interrupted_code_e code)
+#define SMART_CONTROL_EXTEND_CMD       0x03
+#define SMART_CONTROL_START_CMD                0x04
+
+static void _bt_cb_hid_state_changed(int result, bool connected, const char *remote_address, void *user_data)
 {
-       switch(code) {
-       case SOUND_SESSION_INTERRUPTED_COMPLETED:               return "SOUND_SESSION_INTERRUPTED_COMPLETED";
-       case SOUND_SESSION_INTERRUPTED_BY_MEDIA:                return "SOUND_SESSION_INTERRUPTED_BY_MEDIA";
-       case SOUND_SESSION_INTERRUPTED_BY_CALL:                 return "SOUND_SESSION_INTERRUPTED_BY_CALL";
-       case SOUND_SESSION_INTERRUPTED_BY_EARJACK_UNPLUG:       return "SOUND_SESSION_INTERRUPTED_BY_EARJACK_UNPLUG";
-       case SOUND_SESSION_INTERRUPTED_BY_RESOURCE_CONFLICT:    return "SOUND_SESSION_INTERRUPTED_BY_RESOURCE_CONFLICT";
-       case SOUND_SESSION_INTERRUPTED_BY_ALARM:                return "SOUND_SESSION_INTERRUPTED_BY_ALARM";
-       case SOUND_SESSION_INTERRUPTED_BY_EMERGENCY:            return "SOUND_SESSION_INTERRUPTED_BY_EMERGENCY";
-       case SOUND_SESSION_INTERRUPTED_BY_NOTIFICATION:         return "SOUND_SESSION_INTERRUPTED_BY_NOTIFICATION";
-       default:
-               return "Undefined error code";
-       }
+       SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Bluetooth Event [%d] Received address [%s]", result, remote_address);
 }
 
-void __sttd_recorder_sound_interrupted_cb(sound_session_interrupted_code_e code, void *user_data)
+static void _bt_hid_audio_data_receive_cb(bt_hid_voice_data_s *voice_data, void *user_data)
 {
-       SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Get the interrupt code from sound mgr : %s", 
-               __stt_get_session_interrupt_code(code));
-
-       if (SOUND_SESSION_INTERRUPTED_COMPLETED == code || SOUND_SESSION_INTERRUPTED_BY_EARJACK_UNPLUG == code)
+       if (STTD_RECORDER_STATE_RECORDING != g_recorder_state) {
+               /* SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Exit audio reading normal func"); */
                return;
+       }
 
-       if (NULL != g_interrupt_cb) {
-               g_interrupt_cb();
+       if (NULL != g_audio_cb) {
+               if (0 != g_audio_cb((void*)voice_data->audio_buf, (unsigned int)voice_data->length)) {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to read audio");
+                       sttd_recorder_stop();
+               }
+
+               if (NULL == g_recorder) {
+                       return;
+               }
+
+               float vol_db = get_volume_decibel((char*)voice_data->audio_buf, (int)voice_data->length, g_recorder->audio_type);
+               if (0 != sttdc_send_set_volume(g_recorder->uid, vol_db)) {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder] Fail to send recording volume(%f)", vol_db);
+               }
        }
+
+       if (0 == g_buffer_count || 0 == g_buffer_count % 50) {
+               SLOG(LOG_WARN, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", g_buffer_count, voice_data->length);
+
+               if (0 == g_bt_extend_count % 5 && 0 != g_buffer_count) {
+                       const unsigned char input_data[2] = {SMART_CONTROL_EXTEND_CMD, 0x10 };
+                       if (BT_ERROR_NONE != bt_hid_send_rc_command(NULL, input_data, sizeof(input_data))) {
+                               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_send_rc_command(NULL, %s, %d)", input_data, sizeof(input_data));
+                       } else {
+                               SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Extend bt audio recorder");
+                       }
+               }
+               g_bt_extend_count++;
+
+               if (100000 == g_buffer_count) {
+                       g_buffer_count = 0;
+               }
+       }
+
+       g_buffer_count++;
+
+#ifdef BUF_SAVE_MODE
+       /* write pcm buffer */
+       fwrite(data, 1, len, g_pFile);
+#endif
        return;
 }
+#endif
+
+
+const char* __stt_get_focus_changed_reason_code(sound_stream_focus_change_reason_e reason)
+{
+       switch (reason) {
+       case SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA:                       return "SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_SYSTEM:                      return "SOUND_STREAM_FOCUS_CHANGED_BY_SYSTEM";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_ALARM:                       return "SOUND_STREAM_FOCUS_CHANGED_BY_ALARM";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_NOTIFICATION:        return "SOUND_STREAM_FOCUS_CHANGED_BY_NOTIFICATION";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_EMERGENCY:           return "SOUND_STREAM_FOCUS_CHANGED_BY_EMERGENCY";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_INFORMATION:   return "SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_INFORMATION";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_RECOGNITION:   return "SOUND_STREAM_FOCUS_CHANGED_BY_VOICE_RECOGNITION";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_RINGTONE:            return "SOUND_STREAM_FOCUS_CHANGED_BY_RINGTONE";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_VOIP:                        return "SOUND_STREAM_FOCUS_CHANGED_BY_VOIP";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_CALL:                        return "SOUND_STREAM_FOCUS_CHANGED_BY_CALL";
+       case SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA_EXTERNAL_ONLY: return "SOUND_STREAM_FOCUS_CHANGED_BY_MEDIA_EXTERNAL_ONLY";
+       default:                                                                                        return "Undefined reason code";
+       }
+}
+
+void __recorder_focus_state_watch_cb(int id, sound_stream_focus_mask_e focus_mask, sound_stream_focus_state_e focus_state, 
+                                               sound_stream_focus_change_reason_e reason, const char *extra_info, void *user_data)
+{
+       SLOG(LOG_WARN, TAG_STTD, "[Recorder] focus_state_watch_cb is called, focus_state(%d), reason(%s)", (int)focus_state, __stt_get_focus_changed_reason_code(reason));
+
+       if (STTD_RECORDER_STATE_RECORDING == g_recorder_state && SOUND_STREAM_FOCUS_STATE_ACQUIRED == focus_state) {
+               SLOG(LOG_WARN, TAG_STTD, "[Recorder] Focus released as interrupt");
+               if (NULL != g_interrupt_cb) {
+                       g_interrupt_cb();
+               }
+       }
+}
 
 int sttd_recorder_initialize(stt_recorder_audio_cb audio_cb, stt_recorder_interrupt_cb interrupt_cb)
 {
@@ -104,29 +182,61 @@ int sttd_recorder_initialize(stt_recorder_audio_cb audio_cb, stt_recorder_interr
                SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Current state of recorder is recording");
                return STTD_ERROR_INVALID_STATE;
        }
-       
+
+       if (0 != pthread_mutex_init(&sttd_audio_in_handle_mutex, NULL)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to initialize audio in handle mutex.");
+       }
+
        g_audio_cb = audio_cb;
        g_interrupt_cb = interrupt_cb;
        g_recorder_state = STTD_RECORDER_STATE_NONE;
-       g_recording_engine_id = -1;
+       g_recorder = NULL;
 
-       if (0 != sound_manager_set_session_type(SOUND_SESSION_TYPE_MEDIA)) {
-               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to set exclusive session");
+       if (0 != sound_manager_create_stream_information(SOUND_STREAM_TYPE_VOICE_RECOGNITION, NULL, NULL, &g_stream_info_h)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create stream info");
        }
 
-       if (0 != sound_manager_set_session_interrupted_cb(__sttd_recorder_sound_interrupted_cb, NULL)) {
-               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to set sound interrupt callback");
+       if (0 != sound_manager_add_focus_state_watch_cb(SOUND_STREAM_FOCUS_FOR_BOTH, __recorder_focus_state_watch_cb, NULL, &g_stream_focus_id)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to add focus state watch callback");
        }
 
+#ifdef TV_BT_MODE
+       if (BT_ERROR_NONE != bt_product_init()) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to init bt");
+               return STTD_ERROR_OPERATION_FAILED;
+       }
+
+       if (BT_ERROR_NONE != bt_hid_host_initialize(_bt_cb_hid_state_changed, NULL)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_host_initialize()");
+               return STTD_ERROR_OPERATION_FAILED;
+       }
+#endif
+
        return 0;
 }
 
 int sttd_recorder_deinitialize()
 {
-       if (0 != sound_manager_unset_session_interrupted_cb()) {
-               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unset sound interrupt callback");
+       if (0 != pthread_mutex_destroy(&sttd_audio_in_handle_mutex)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Server ERROR] Fail to destroy audio in handle mutex.");
+       }
+
+       if (0 != sound_manager_remove_focus_state_watch_cb(g_stream_focus_id)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to remove focus state watch callback");
        }
 
+       if (0 != sound_manager_destroy_stream_information(g_stream_info_h)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy stream info");
+       }
+
+       if (NULL != g_recorder) {
+               audio_in_destroy(g_recorder->audio_h);
+               g_recorder->audio_h = NULL;
+               free(g_recorder);
+               g_recorder = NULL;
+       }
+
+#ifdef __UNUSED_CODES__
        /* Remove all recorder */
        GSList *iter = NULL;
        stt_recorder_s *recorder = NULL;
@@ -138,45 +248,28 @@ int sttd_recorder_deinitialize()
 
                if (NULL != recorder) {
                        g_recorder_list = g_slist_remove(g_recorder_list, recorder);
-                       audio_in_destroy(recorder->audio_h);
-
+                       if (recorder->audio_h) {
+                               audio_in_destroy(recorder->audio_h);
+                               recorder->audio_h = NULL;
+                       }
                        free(recorder);
                }
 
                iter = g_slist_nth(g_recorder_list, 0);
        }
+#endif
 
-       if (0 == access(STT_AUDIO_VOLUME_PATH, R_OK)) {
-               if (0 != remove(STT_AUDIO_VOLUME_PATH)) {
-                       SLOG(LOG_WARN, TAG_STTD, "[Recorder WARN] Fail to remove volume file"); 
-               }
-       }
+#ifdef TV_BT_MODE
+       bt_hid_host_deinitialize();
+
+       bt_product_deinit();
+#endif
 
        g_recorder_state = STTD_RECORDER_STATE_NONE;
 
        return 0;
 }
 
-static stt_recorder_s* __get_recorder(int engine_id)
-{
-       GSList *iter = NULL;
-       stt_recorder_s *recorder = NULL;
-
-       iter = g_slist_nth(g_recorder_list, 0);
-
-       while (NULL != iter) {
-               recorder = iter->data;
-
-               if (recorder->engine_id == engine_id) {
-                       return recorder;
-               }
-
-               iter = g_slist_next(iter);
-       }
-
-       return NULL;
-}
-
 int sttd_recorder_set_audio_session()
 {
        return 0;
@@ -187,34 +280,36 @@ int sttd_recorder_unset_audio_session()
        return 0;
 }
 
-int sttd_recorder_create(int engine_id, sttp_audio_type_e type, int channel, unsigned int sample_rate)
+int sttd_recorder_create(stte_audio_type_e type, int channel, unsigned int sample_rate)
 {
        /* Check engine id is valid */
-       if (NULL != __get_recorder(engine_id)) {
+       if (NULL != g_recorder) {
                SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is already registered");
                return STTD_ERROR_INVALID_PARAMETER;
        }
 
+       audio_in_h temp_in_h = NULL;
+
+#ifndef TV_BT_MODE
        audio_channel_e audio_ch;
        audio_sample_type_e audio_type;
-       audio_in_h temp_in_h;
-
-       switch(channel) {
-               case 1: audio_ch = AUDIO_CHANNEL_MONO;          break;
-               case 2: audio_ch = AUDIO_CHANNEL_STEREO;        break;
-               default:
-                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input channel is not supported");
-                       return STTD_ERROR_OPERATION_FAILED;
-                       break;
+
+       switch (channel) {
+       case 1: audio_ch = AUDIO_CHANNEL_MONO;          break;
+       case 2: audio_ch = AUDIO_CHANNEL_STEREO;        break;
+       default:
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input channel is not supported");
+               return STTD_ERROR_OPERATION_FAILED;
+               break;
        }
 
        switch (type) {
-               case STTP_AUDIO_TYPE_PCM_S16_LE:        audio_type = AUDIO_SAMPLE_TYPE_S16_LE;  break;
-               case STTP_AUDIO_TYPE_PCM_U8:            audio_type = AUDIO_SAMPLE_TYPE_U8;      break;
-               default:        
-                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Invalid Audio Type"); 
-                       return STTD_ERROR_OPERATION_FAILED;
-                       break;
+       case STTE_AUDIO_TYPE_PCM_S16_LE:        audio_type = AUDIO_SAMPLE_TYPE_S16_LE;  break;
+       case STTE_AUDIO_TYPE_PCM_U8:            audio_type = AUDIO_SAMPLE_TYPE_U8;      break;
+       default:
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Invalid Audio Type");
+               return STTD_ERROR_OPERATION_FAILED;
+               break;
        }
 
        int ret;
@@ -223,59 +318,89 @@ int sttd_recorder_create(int engine_id, sttp_audio_type_e type, int channel, uns
                SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create audio handle : %d", ret);
                return STTD_ERROR_OPERATION_FAILED;
        }
+#else
+       if (BT_ERROR_NONE != bt_hid_set_audio_data_receive_cb(_bt_hid_audio_data_receive_cb, NULL)) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_set_audio_data_receive_cb()");
+               return STTD_ERROR_OPERATION_FAILED;
+       }
+#endif
 
        stt_recorder_s* recorder;
        recorder = (stt_recorder_s*)calloc(1, sizeof(stt_recorder_s));
        if (NULL == recorder) {
-               audio_in_destroy(temp_in_h);
+#ifndef TV_BT_MODE
+               if (temp_in_h) {
+                       audio_in_destroy(temp_in_h);
+                       temp_in_h = NULL;
+               }
+#endif
                SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to allocate memory");
                return STTD_ERROR_OUT_OF_MEMORY;
        }
 
-       recorder->engine_id = engine_id;
+       recorder->uid = -1;
        recorder->audio_h = temp_in_h;
        recorder->audio_type = type;
-       
-       g_recorder_list = g_slist_append(g_recorder_list, recorder);
+
+       g_recorder = recorder;
 
        g_recorder_state = STTD_RECORDER_STATE_READY;
 
        return 0;
 }
 
-int sttd_recorder_destroy(int engine_id)
+int sttd_recorder_destroy()
 {
+       // critical section required because this function can be called from stt engine thread context
+       SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Enter critical section");
+       pthread_mutex_lock(&sttd_audio_in_handle_mutex);
+
        /* Check engine id is valid */
-       stt_recorder_s* recorder;
-       recorder = __get_recorder(engine_id);
-       if (NULL == recorder) {
+       if (NULL == g_recorder) {
                SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
+               pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
                return STTD_ERROR_INVALID_PARAMETER;
        }
 
+#ifndef TV_BT_MODE
        int ret;
        if (STTD_RECORDER_STATE_RECORDING == g_recorder_state) {
-               ret = audio_in_unprepare(recorder->audio_h);
-               if (AUDIO_IO_ERROR_NONE != ret) {
-                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
+               if (g_recorder->audio_h) {
+                       ret = audio_in_unprepare(g_recorder->audio_h);
+                       if (AUDIO_IO_ERROR_NONE != ret) {
+                               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
+                       }
                }
 
                g_recorder_state = STTD_RECORDER_STATE_READY;
        }
 
-       ret = audio_in_destroy(recorder->audio_h);
-       if (AUDIO_IO_ERROR_NONE != ret) {
-               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy audioin : %d", ret);
+       if (g_recorder->audio_h) {
+               ret = audio_in_destroy(g_recorder->audio_h);
+               if (AUDIO_IO_ERROR_NONE != ret) {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy audioin : %d", ret);
+               }
+               g_recorder->audio_h = NULL;
        }
 
-       g_recorder_list = g_slist_remove(g_recorder_list, recorder);
+#else
+       if (STTD_RECORDER_STATE_RECORDING == g_recorder_state) {
+               g_recorder_state = STTD_RECORDER_STATE_READY;
+       }
+
+       bt_hid_unset_audio_data_receive_cb();
+#endif
 
-       free(recorder);
+       free(g_recorder);
+       g_recorder = NULL;
+
+       pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
+       SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Leave critical section");
 
        return 0;
 }
 
-static float get_volume_decibel(char* data, int size, sttp_audio_type_e type)
+static float get_volume_decibel(char* data, int size, stte_audio_type_e type)
 {
        #define MAX_AMPLITUDE_MEAN_16   32768
        #define MAX_AMPLITUDE_MEAN_08   128
@@ -287,7 +412,7 @@ static float get_volume_decibel(char* data, int size, sttp_audio_type_e type)
        float rms = 0.0;
        unsigned long long square_sum = 0;
 
-       if (type == STTP_AUDIO_TYPE_PCM_S16_LE)
+       if (type == STTE_AUDIO_TYPE_PCM_S16_LE)
                depthByte = 2;
        else
                depthByte = 1;
@@ -308,7 +433,7 @@ static float get_volume_decibel(char* data, int size, sttp_audio_type_e type)
        if (0 == count)
                rms = 0.0;
        else
-               rms = sqrt(square_sum/count);
+               rms = sqrt((double)square_sum/count);
 
        if (depthByte == 2)
                db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_16);
@@ -318,15 +443,14 @@ static float get_volume_decibel(char* data, int size, sttp_audio_type_e type)
        return db;
 }
 
+#ifndef TV_BT_MODE
 Eina_Bool __read_audio_func(void *data)
 {
        int read_byte = -1;
        static char g_buffer[BUFFER_LENGTH];
 
        /* Check engine id is valid */
-       stt_recorder_s* recorder;
-       recorder = __get_recorder(g_recording_engine_id);
-       if (NULL == recorder) {
+       if (NULL == g_recorder) {
                return EINA_FALSE;
        }
 
@@ -335,7 +459,7 @@ Eina_Bool __read_audio_func(void *data)
                return EINA_FALSE;
        }
 
-       read_byte = audio_in_read(recorder->audio_h, g_buffer, BUFFER_LENGTH);
+       read_byte = audio_in_read(g_recorder->audio_h, g_buffer, BUFFER_LENGTH);
        if (0 > read_byte) {
                SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail to read audio : %d", read_byte);
                g_recorder_state = STTD_RECORDER_STATE_READY;
@@ -344,20 +468,21 @@ Eina_Bool __read_audio_func(void *data)
 
        if (0 != g_audio_cb(g_buffer, read_byte)) {
                SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail audio callback");
-               sttd_recorder_stop(g_recording_engine_id);
+               sttd_recorder_stop();
                return EINA_FALSE;
        }
 
-       float vol_db = get_volume_decibel(g_buffer, BUFFER_LENGTH, recorder->audio_type);
-
-       rewind(g_pFile_vol);
-
-       fwrite((void*)(&vol_db), sizeof(vol_db), 1, g_pFile_vol);
+       if (0 == g_buffer_count % 30) {
+               float vol_db = get_volume_decibel(g_buffer, BUFFER_LENGTH, g_recorder->audio_type);
+               if (0 != sttdc_send_set_volume(g_recorder->uid, vol_db)) {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder] Fail to send recording volume(%f)", vol_db);
+               }
+       }
 
        /* Audio read log */
        if (0 == g_buffer_count % 50) {
                SLOG(LOG_DEBUG, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", g_buffer_count, read_byte);
-               
+
                if (100000 == g_buffer_count) {
                        g_buffer_count = 0;
                }
@@ -372,22 +497,27 @@ Eina_Bool __read_audio_func(void *data)
 
        return EINA_TRUE;
 }
+#endif
 
-int sttd_recorder_start(int engine_id)
+int sttd_recorder_start(int uid)
 {
        if (STTD_RECORDER_STATE_RECORDING == g_recorder_state)
                return 0;
 
+       int ret = -1;
+#ifndef TV_BT_MODE
        /* Check engine id is valid */
-       stt_recorder_s* recorder;
-       recorder = __get_recorder(engine_id);
-       if (NULL == recorder) {
+       if (NULL == g_recorder) {
                SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
                return STTD_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = -1; 
-       ret = audio_in_prepare(recorder->audio_h);
+       ret = audio_in_set_sound_stream_info(g_recorder->audio_h, g_stream_info_h);
+       if (AUDIO_IO_ERROR_NONE != ret) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to set stream info");
+       }
+
+       ret = audio_in_prepare(g_recorder->audio_h);
        if (AUDIO_IO_ERROR_NONE != ret) {
                SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to start audio : %d", ret);
                return STTD_ERROR_RECORDER_BUSY;
@@ -396,85 +526,190 @@ int sttd_recorder_start(int engine_id)
        /* Add ecore timer to read audio data */
        ecore_timer_add(0, __read_audio_func, NULL);
 
-       g_recorder_state = STTD_RECORDER_STATE_RECORDING;
-       g_recording_engine_id = engine_id;
-
-       g_pFile_vol = fopen(STT_AUDIO_VOLUME_PATH, "wb+");
-       if (!g_pFile_vol) {
-               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create Volume File");
-               return -1;
+#else
+       g_bt_extend_count = 0;
+       const unsigned char input_data[2] = {SMART_CONTROL_START_CMD, 0x00 };
+       int bt_retry = 0;
+       bool started = false;
+       while (5 > bt_retry) {
+               ret = bt_hid_send_rc_command(NULL, input_data, sizeof(input_data));
+               if (BT_ERROR_NONE == ret) {
+                       SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Start bt audio recorder");
+                       started = true;
+                       break;
+               } else if (BT_ERROR_NOW_IN_PROGRESS == ret) {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_send_rc_command(NULL, %s, %d)", input_data, sizeof(input_data));
+                       usleep(50000);
+                       bt_retry++;
+               } else {
+                       break;
+               }
        }
+       if (false == started) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to start bt audio");
+               return STTD_ERROR_OPERATION_FAILED;
+       }
+#endif
+       g_recorder_state = STTD_RECORDER_STATE_RECORDING;
+       g_recorder->uid = uid;
 
        g_buffer_count = 0;
 
 #ifdef BUF_SAVE_MODE
        g_count++;
 
-       snprintf(g_temp_file_name, sizeof(g_temp_file_name), "/tmp/stt_temp_%d_%d", getpid(), g_count);
+       while (1) {
+               snprintf(g_temp_file_name, sizeof(g_temp_file_name), "/tmp/stt_temp_%d_%d", getpid(), g_count);
+               ret = access(g_temp_file_name, 0);
+
+               if (0 == ret) {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] File is already exist");
+                       if (0 == remove(g_temp_file_name)) {
+                               SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Remove file");
+                               break;
+                       } else {
+                               g_count++;
+                       }
+               } else {
+                       break;
+               }
+       }
+
        SECURE_SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Temp file name=[%s]", g_temp_file_name);
 
        /* open test file */
-       g_pFile = fopen(g_temp_file_name, "wb+");
+       g_pFile = fopen(g_temp_file_name, "wb+x");
        if (!g_pFile) {
                SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] File not found!");
                return -1;
-       }       
+       }
 #endif
 
        return 0;
 }
 
-int sttd_recorder_stop(int engine_id)
+int sttd_recorder_stop()
 {
        if (STTD_RECORDER_STATE_READY == g_recorder_state)
                return 0;
 
+       // critical section required because this function can be called from stt engine thread context
+       SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Enter critical section");
+       pthread_mutex_lock(&sttd_audio_in_handle_mutex);
+
        /* Check engine id is valid */
-       stt_recorder_s* recorder;
-       recorder = __get_recorder(engine_id);
-       if (NULL == recorder) {
+       if (NULL == g_recorder) {
                SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
+               pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
                return STTD_ERROR_INVALID_PARAMETER;
        }
 
-       int ret; 
-       ret = audio_in_unprepare(recorder->audio_h);
+       g_recorder->uid = -1;
+
+       int ret = -1;
+#ifndef TV_BT_MODE
+       ret = audio_in_unprepare(g_recorder->audio_h);
        if (AUDIO_IO_ERROR_NONE != ret) {
                SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
        }
+#else
+       int bt_retry = 0;
+       bool stopped = false;
+       while (5 > bt_retry) {
+               ret = bt_hid_rc_stop_sending_voice(NULL);
+               if (BT_ERROR_NONE == ret) {
+                       SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Stop bt audio");
+                       stopped = true;
+                       break;
+               } else if (BT_ERROR_NOW_IN_PROGRESS == ret) {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail bt_hid_rc_stop_sending_voice()");
+                       usleep(50000);
+                       bt_retry++;
+               } else {
+                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] bt_hid_rc_stop_sending_voice(): ret(%d)", ret);
+                       break;
+               }
+       }
+       if (false == stopped) {
+               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to stop bt audio(%d)", ret);
+//             return STTD_ERROR_OPERATION_FAILED;
+       }
+#endif
 
        g_recorder_state = STTD_RECORDER_STATE_READY;
-       g_recording_engine_id = -1;
-
-       fclose(g_pFile_vol);
 
 #ifdef BUF_SAVE_MODE
        fclose(g_pFile);
-#endif 
+#endif
+       pthread_mutex_unlock(&sttd_audio_in_handle_mutex);
+       SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Leave critical section");
 
        return 0;
 }
 
-int sttd_recorder_set_ignore_session(int engine_id)
+int sttd_recorder_start_file(int uid, const char *filepath)
 {
-       if (STTD_RECORDER_STATE_READY != g_recorder_state) {
-               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Record is working.");
-               return -1;
-       }
+       if (STTD_RECORDER_STATE_RECORDING == g_recorder_state)
+               return 0;
 
        /* Check engine id is valid */
-       stt_recorder_s* recorder;
-       recorder = __get_recorder(engine_id);
-       if (NULL == recorder) {
+       if (NULL == g_recorder) {
                SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
                return STTD_ERROR_INVALID_PARAMETER;
        }
+       g_recorder_state = STTD_RECORDER_STATE_RECORDING;
+       g_recorder->uid = uid;
+
+       int cnt = 0;
+       int totalReadBytes = 0;
+
+       FILE *infile = fopen(filepath, "rb");
+
+       //process the file
+       if (infile != NULL) {
+               while (!feof(infile)) {
+                       static char pcm_buff[BUFFER_LENGTH];
+                       int read_byte = fread(pcm_buff, 1, BUFFER_LENGTH, infile);
+                       totalReadBytes += read_byte;
+                       if (0 != read_byte) {
+                               if (0 != g_audio_cb(pcm_buff, read_byte)) {
+                                       SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to call audio callback");
+                                       fclose(infile);
+                                       return -1;
+                               }
+                               if (0 == cnt % 30) {
+                                       float vol_db = get_volume_decibel(pcm_buff, BUFFER_LENGTH, g_recorder->audio_type);
+                                       if (0 != sttdc_send_set_volume(g_recorder->uid, vol_db)) {
+                                               SLOG(LOG_ERROR, TAG_STTD, "[Recorder] Fail to send recording volume(%f)", vol_db);
+                                       }
+                               }
+
+                               /* Audio read log */
+                               if (0 == cnt % 50)
+                                       SLOG(LOG_DEBUG, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", cnt, read_byte);
+                               cnt++;
+                       }
+               }
+               fclose(infile);
+       }
 
-       int ret = audio_in_ignore_session(recorder->audio_h);
-       if (AUDIO_IO_ERROR_NONE != ret) {
-               SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to ignore session : %d", ret);
-               return STTD_ERROR_OPERATION_FAILED;
+       SLOG(LOG_DEBUG, TAG_STTD, "[Recorder][%d] total bytes(%d)", cnt, totalReadBytes);
+       return 0;
+}
+
+int sttd_recorder_stop_file()
+{
+       if (STTD_RECORDER_STATE_READY == g_recorder_state)
+               return 0;
+
+       /* Check engine id is valid */
+       if (NULL == g_recorder) {
+               SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
+               return STTD_ERROR_INVALID_PARAMETER;
        }
 
+       g_recorder->uid = -1;
+       g_recorder_state = STTD_RECORDER_STATE_READY;
+
        return 0;
-}
\ No newline at end of file
+}