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.
17 #include <sound_manager.h>
20 #include "sttd_recorder.h"
21 #include "sttd_main.h"
25 #define FRAME_LENGTH 160
26 #define BUFFER_LENGTH FRAME_LENGTH * 2
29 STTD_RECORDER_STATE_NONE = -1,
30 STTD_RECORDER_STATE_READY = 0, /**< Recorder is ready to start */
31 STTD_RECORDER_STATE_RECORDING /**< In the middle of recording */
32 } sttd_recorder_state;
37 sttp_audio_type_e audio_type;
40 static GSList *g_recorder_list;
42 static int g_recording_engine_id;
44 static stt_recorder_audio_cb g_audio_cb;
46 static stt_recorder_interrupt_cb g_interrupt_cb;
48 static sttd_recorder_state g_recorder_state = STTD_RECORDER_STATE_NONE;
50 static FILE* g_pFile_vol;
52 static int g_buffer_count;
54 /* Sound buf save for test */
59 static char g_temp_file_name[128] = {'\0',};
63 static int g_count = 1;
66 const char* __stt_get_session_interrupt_code(sound_session_interrupted_code_e code)
69 case SOUND_SESSION_INTERRUPTED_COMPLETED: return "SOUND_SESSION_INTERRUPTED_COMPLETED";
70 case SOUND_SESSION_INTERRUPTED_BY_MEDIA: return "SOUND_SESSION_INTERRUPTED_BY_MEDIA";
71 case SOUND_SESSION_INTERRUPTED_BY_CALL: return "SOUND_SESSION_INTERRUPTED_BY_CALL";
72 case SOUND_SESSION_INTERRUPTED_BY_EARJACK_UNPLUG: return "SOUND_SESSION_INTERRUPTED_BY_EARJACK_UNPLUG";
73 case SOUND_SESSION_INTERRUPTED_BY_RESOURCE_CONFLICT: return "SOUND_SESSION_INTERRUPTED_BY_RESOURCE_CONFLICT";
74 case SOUND_SESSION_INTERRUPTED_BY_ALARM: return "SOUND_SESSION_INTERRUPTED_BY_ALARM";
75 case SOUND_SESSION_INTERRUPTED_BY_EMERGENCY: return "SOUND_SESSION_INTERRUPTED_BY_EMERGENCY";
76 case SOUND_SESSION_INTERRUPTED_BY_NOTIFICATION: return "SOUND_SESSION_INTERRUPTED_BY_NOTIFICATION";
78 return "Undefined error code";
82 void __sttd_recorder_sound_interrupted_cb(sound_session_interrupted_code_e code, void *user_data)
84 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Get the interrupt code from sound mgr : %s",
85 __stt_get_session_interrupt_code(code));
87 if (SOUND_SESSION_INTERRUPTED_COMPLETED == code || SOUND_SESSION_INTERRUPTED_BY_EARJACK_UNPLUG == code)
90 if (NULL != g_interrupt_cb) {
96 int sttd_recorder_initialize(stt_recorder_audio_cb audio_cb, stt_recorder_interrupt_cb interrupt_cb)
98 if (NULL == audio_cb || NULL == interrupt_cb) {
99 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input param is NOT valid");
100 return STTD_ERROR_INVALID_PARAMETER;
103 if (STTD_RECORDER_STATE_NONE != g_recorder_state) {
104 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Current state of recorder is recording");
105 return STTD_ERROR_INVALID_STATE;
108 g_audio_cb = audio_cb;
109 g_interrupt_cb = interrupt_cb;
110 g_recorder_state = STTD_RECORDER_STATE_NONE;
111 g_recording_engine_id = -1;
113 if (0 != sound_manager_set_session_type(SOUND_SESSION_TYPE_MEDIA)) {
114 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to set exclusive session");
117 if (0 != sound_manager_set_session_interrupted_cb(__sttd_recorder_sound_interrupted_cb, NULL)) {
118 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to set sound interrupt callback");
124 int sttd_recorder_deinitialize()
126 if (0 != sound_manager_unset_session_interrupted_cb()) {
127 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unset sound interrupt callback");
130 /* Remove all recorder */
132 stt_recorder_s *recorder = NULL;
134 iter = g_slist_nth(g_recorder_list, 0);
136 while (NULL != iter) {
137 recorder = iter->data;
139 if (NULL != recorder) {
140 g_recorder_list = g_slist_remove(g_recorder_list, recorder);
141 audio_in_destroy(recorder->audio_h);
146 iter = g_slist_nth(g_recorder_list, 0);
149 if (0 == access(STT_AUDIO_VOLUME_PATH, R_OK)) {
150 if (0 != remove(STT_AUDIO_VOLUME_PATH)) {
151 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARN] Fail to remove volume file");
155 g_recorder_state = STTD_RECORDER_STATE_NONE;
160 static stt_recorder_s* __get_recorder(int engine_id)
163 stt_recorder_s *recorder = NULL;
165 iter = g_slist_nth(g_recorder_list, 0);
167 while (NULL != iter) {
168 recorder = iter->data;
170 if (recorder->engine_id == engine_id) {
174 iter = g_slist_next(iter);
180 int sttd_recorder_set_audio_session()
185 int sttd_recorder_unset_audio_session()
190 int sttd_recorder_create(int engine_id, sttp_audio_type_e type, int channel, unsigned int sample_rate)
192 /* Check engine id is valid */
193 if (NULL != __get_recorder(engine_id)) {
194 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is already registered");
195 return STTD_ERROR_INVALID_PARAMETER;
198 audio_channel_e audio_ch;
199 audio_sample_type_e audio_type;
200 audio_in_h temp_in_h;
203 case 1: audio_ch = AUDIO_CHANNEL_MONO; break;
204 case 2: audio_ch = AUDIO_CHANNEL_STEREO; break;
206 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Input channel is not supported");
207 return STTD_ERROR_OPERATION_FAILED;
212 case STTP_AUDIO_TYPE_PCM_S16_LE: audio_type = AUDIO_SAMPLE_TYPE_S16_LE; break;
213 case STTP_AUDIO_TYPE_PCM_U8: audio_type = AUDIO_SAMPLE_TYPE_U8; break;
215 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Invalid Audio Type");
216 return STTD_ERROR_OPERATION_FAILED;
221 ret = audio_in_create(sample_rate, audio_ch, audio_type, &temp_in_h);
222 if (AUDIO_IO_ERROR_NONE != ret) {
223 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create audio handle : %d", ret);
224 return STTD_ERROR_OPERATION_FAILED;
227 stt_recorder_s* recorder;
228 recorder = (stt_recorder_s*)calloc(1, sizeof(stt_recorder_s));
230 recorder->engine_id = engine_id;
231 recorder->audio_h = temp_in_h;
232 recorder->audio_type = type;
234 g_recorder_list = g_slist_append(g_recorder_list, recorder);
236 g_recorder_state = STTD_RECORDER_STATE_READY;
241 int sttd_recorder_destroy(int engine_id)
243 /* Check engine id is valid */
244 stt_recorder_s* recorder;
245 recorder = __get_recorder(engine_id);
246 if (NULL == recorder) {
247 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
248 return STTD_ERROR_INVALID_PARAMETER;
252 if (STTD_RECORDER_STATE_RECORDING == g_recorder_state) {
253 ret = audio_in_unprepare(recorder->audio_h);
254 if (AUDIO_IO_ERROR_NONE != ret) {
255 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
258 g_recorder_state = STTD_RECORDER_STATE_READY;
261 ret = audio_in_destroy(recorder->audio_h);
262 if (AUDIO_IO_ERROR_NONE != ret) {
263 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to destroy audioin : %d", ret);
266 g_recorder_list = g_slist_remove(g_recorder_list, recorder);
273 static float get_volume_decibel(char* data, int size, sttp_audio_type_e type)
275 #define MAX_AMPLITUDE_MEAN_16 23170.115738161934
276 #define MAX_AMPLITUDE_MEAN_08 89.803909382810
283 unsigned long long square_sum = 0;
285 if (type == STTP_AUDIO_TYPE_PCM_S16_LE)
290 for (i = 0; i < size; i += (depthByte<<1)) {
291 if (depthByte == 2) {
293 memcpy(&pcm16, data + i, sizeof(short));
294 square_sum += pcm16 * pcm16;
297 memcpy(&pcm8, data + i, sizeof(char));
298 square_sum += pcm8 * pcm8;
306 rms = sqrt(square_sum/count);
309 db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_16);
311 db = 20 * log10(rms/MAX_AMPLITUDE_MEAN_08);
316 Eina_Bool __read_audio_func(void *data)
319 static char g_buffer[BUFFER_LENGTH];
321 /* Check engine id is valid */
322 stt_recorder_s* recorder;
323 recorder = __get_recorder(g_recording_engine_id);
324 if (NULL == recorder) {
328 if (STTD_RECORDER_STATE_READY == g_recorder_state) {
329 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Exit audio reading func");
333 read_byte = audio_in_read(recorder->audio_h, g_buffer, BUFFER_LENGTH);
335 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail to read audio : %d", read_byte);
336 g_recorder_state = STTD_RECORDER_STATE_READY;
340 if (0 != g_audio_cb(g_buffer, read_byte)) {
341 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Fail audio callback");
342 sttd_recorder_stop(g_recording_engine_id);
346 float vol_db = get_volume_decibel(g_buffer, BUFFER_LENGTH, recorder->audio_type);
350 fwrite((void*)(&vol_db), sizeof(vol_db), 1, g_pFile_vol);
353 if (0 == g_buffer_count % 50) {
354 SLOG(LOG_DEBUG, TAG_STTD, "[Recorder][%d] Recording... : read_size(%d)", g_buffer_count, read_byte);
356 if (100000 == g_buffer_count) {
364 /* write pcm buffer */
365 fwrite(g_buffer, 1, BUFFER_LENGTH, g_pFile);
371 int sttd_recorder_start(int engine_id)
373 if (STTD_RECORDER_STATE_RECORDING == g_recorder_state)
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 return STTD_ERROR_INVALID_PARAMETER;
385 ret = audio_in_prepare(recorder->audio_h);
386 if (AUDIO_IO_ERROR_NONE != ret) {
387 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to start audio : %d", ret);
388 return STTD_ERROR_RECORDER_BUSY;
391 /* Add ecore timer to read audio data */
392 ecore_timer_add(0, __read_audio_func, NULL);
394 g_recorder_state = STTD_RECORDER_STATE_RECORDING;
395 g_recording_engine_id = engine_id;
397 g_pFile_vol = fopen(STT_AUDIO_VOLUME_PATH, "wb+");
399 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to create Volume File");
408 snprintf(g_temp_file_name, sizeof(g_temp_file_name), "/tmp/stt_temp_%d_%d", getpid(), g_count);
409 SECURE_SLOG(LOG_DEBUG, TAG_STTD, "[Recorder] Temp file name=[%s]", g_temp_file_name);
412 g_pFile = fopen(g_temp_file_name, "wb+");
414 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] File not found!");
422 int sttd_recorder_stop(int engine_id)
424 if (STTD_RECORDER_STATE_READY == g_recorder_state)
427 /* Check engine id is valid */
428 stt_recorder_s* recorder;
429 recorder = __get_recorder(engine_id);
430 if (NULL == recorder) {
431 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
432 return STTD_ERROR_INVALID_PARAMETER;
436 ret = audio_in_unprepare(recorder->audio_h);
437 if (AUDIO_IO_ERROR_NONE != ret) {
438 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to unprepare audioin : %d", ret);
441 g_recorder_state = STTD_RECORDER_STATE_READY;
442 g_recording_engine_id = -1;
453 int sttd_recorder_set_ignore_session(int engine_id)
455 if (STTD_RECORDER_STATE_READY != g_recorder_state) {
456 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Record is working.");
460 /* Check engine id is valid */
461 stt_recorder_s* recorder;
462 recorder = __get_recorder(engine_id);
463 if (NULL == recorder) {
464 SLOG(LOG_WARN, TAG_STTD, "[Recorder WARNING] Engine id is not valid");
465 return STTD_ERROR_INVALID_PARAMETER;
468 int ret = audio_in_ignore_session(recorder->audio_h);
469 if (AUDIO_IO_ERROR_NONE != ret) {
470 SLOG(LOG_ERROR, TAG_STTD, "[Recorder ERROR] Fail to ignore session : %d", ret);
471 return STTD_ERROR_OPERATION_FAILED;