4 * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
6 * Contact: JongHyuk Choi <jhchoi.choi@samsung.com>, YeJin Cho <cho.yejin@samsung.com>, YoungHwan An <younghwan_.an@samsung.com>
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
22 #ifndef __MM_PLAYER_INI_C__
23 #define __MM_PLAYER_INI_C__
28 #include "iniparser.h"
29 #include <mm_player_ini.h>
32 #include <glib/gstdio.h>
34 /* global variables here */
35 static mm_player_ini_t g_player_ini;
37 /* internal functions, macros here */
38 static gboolean __generate_default_ini(void);
39 static void __get_string_list(gchar** out_list, gchar* str);
40 static void __mm_player_ini_check_ini_status(void);
41 //static void __mm_player_ini_force_setting(void);
44 #define MMPLAYER_INI_GET_STRING( x_item, x_ini, x_default ) \
47 gchar* str = iniparser_getstring(dict, x_ini, x_default); \
50 ( strlen( str ) > 0 ) && \
51 ( strlen( str ) < PLAYER_INI_MAX_STRLEN ) ) \
53 strcpy ( x_item, str ); \
57 strcpy ( x_item, x_default ); \
61 /* x_ini is the list of index to set TRUE at x_list[index] */
62 #define MMPLAYER_INI_GET_BOOLEAN_FROM_LIST( x_list, x_list_max, x_ini, x_default ) \
66 const char *delimiters = " ,"; \
67 char *usr_ptr = NULL; \
69 gchar temp_arr[PLAYER_INI_MAX_STRLEN] = {0}; \
70 MMPLAYER_INI_GET_STRING(temp_arr, x_ini, x_default); \
71 token = strtok_r( temp_arr, delimiters, &usr_ptr ); \
74 index = atoi(token); \
75 if (index < 0 || index > x_list_max -1) \
77 debug_warning("%d is not valid index\n", index); \
81 x_list[index] = TRUE; \
83 token = strtok_r( NULL, delimiters, &usr_ptr ); \
87 /* x_ini is the list of value to be set at x_list[index] */
88 #define MMPLAYER_INI_GET_INT_FROM_LIST( x_list, x_list_max, x_ini, x_default ) \
93 const char *delimiters = " ,"; \
94 char *usr_ptr = NULL; \
96 gchar temp_arr[PLAYER_INI_MAX_STRLEN] = {0}; \
97 MMPLAYER_INI_GET_STRING(temp_arr, x_ini, x_default); \
98 token = strtok_r( temp_arr, delimiters, &usr_ptr ); \
101 if ( index > x_list_max -1) \
103 debug_error("%d is not valid index\n", index); \
108 value = atoi(token); \
109 x_list[index] = value; \
112 token = strtok_r( NULL, delimiters, &usr_ptr ); \
117 mm_player_ini_load(void)
119 static gboolean loaded = FALSE;
120 dictionary * dict = NULL;
124 return MM_ERROR_NONE;
128 /* disabling ini parsing for launching */
130 /* get player ini status because system will be crashed
131 * if ini file is corrupted.
133 /* FIXIT : the api actually deleting illregular ini. but the function name said it's just checking. */
134 __mm_player_ini_check_ini_status();
136 /* first, try to load existing ini file */
137 dict = iniparser_load(MM_PLAYER_INI_DEFAULT_PATH);
139 /* if no file exists. create one with set of default values */
143 debug_log("No inifile found. player will create default inifile.\n");
144 if ( FALSE == __generate_default_ini() )
146 debug_warning("Creating default inifile failed. Player will use default values.\n");
150 /* load default ini */
151 dict = iniparser_load(MM_PLAYER_INI_DEFAULT_PATH);
154 debug_log("No inifile found. \n");
156 return MM_ERROR_FILE_NOT_FOUND;
162 memset( &g_player_ini, 0, sizeof(mm_player_ini_t) );
164 if ( dict ) /* if dict is available */
167 g_player_ini.use_decodebin = iniparser_getboolean(dict, "general:use decodebin", DEFAULT_USE_DECODEBIN);
168 g_player_ini.disable_segtrap = iniparser_getboolean(dict, "general:disable segtrap", DEFAULT_DISABLE_SEGTRAP);
169 g_player_ini.skip_rescan = iniparser_getboolean(dict, "general:skip rescan", DEFAULT_SKIP_RESCAN);
170 g_player_ini.generate_dot = iniparser_getboolean(dict, "general:generate dot", DEFAULT_GENERATE_DOT);
171 g_player_ini.provide_clock= iniparser_getboolean(dict, "general:provide clock", DEFAULT_PROVIDE_CLOCK);
172 g_player_ini.live_state_change_timeout = iniparser_getint(dict, "general:live state change timeout", DEFAULT_LIVE_STATE_CHANGE_TIMEOUT);
173 g_player_ini.localplayback_state_change_timeout = iniparser_getint(dict, "general:localplayback state change timeout", DEFAULT_LOCALPLAYBACK_STATE_CHANGE_TIMEOUT);
174 g_player_ini.eos_delay = iniparser_getint(dict, "general:eos delay", DEFAULT_EOS_DELAY);
175 g_player_ini.async_start = iniparser_getboolean(dict, "general:async start", DEFAULT_ASYNC_START);
176 g_player_ini.multiple_codec_supported = iniparser_getboolean(dict, "general:multiple codec supported", DEFAULT_MULTIPLE_CODEC_SUPPORTED);
178 g_player_ini.delay_before_repeat = iniparser_getint(dict, "general:delay before repeat", DEFAULT_DELAY_BEFORE_REPEAT);
180 MMPLAYER_INI_GET_STRING( g_player_ini.videosink_element_x, "general:videosink element x", DEFAULT_VIDEOSINK_X);
181 MMPLAYER_INI_GET_STRING( g_player_ini.videosink_element_evas, "general:videosink element evas", DEFAULT_VIDEOSINK_EVAS);
182 MMPLAYER_INI_GET_STRING( g_player_ini.videosink_element_fake, "general:videosink element fake", DEFAULT_VIDEOSINK_FAKE);
183 MMPLAYER_INI_GET_STRING( g_player_ini.name_of_drmsrc, "general:drmsrc element", DEFAULT_DRMSRC );
184 MMPLAYER_INI_GET_STRING( g_player_ini.name_of_audiosink, "general:audiosink element", DEFAULT_AUDIOSINK );
185 MMPLAYER_INI_GET_STRING( g_player_ini.name_of_video_converter, "general:video converter element", DEFAULT_VIDEO_CONVERTER );
187 __get_string_list( (gchar**) g_player_ini.exclude_element_keyword,
188 iniparser_getstring(dict, "general:element exclude keyword", DEFAULT_EXCLUDE_KEYWORD));
190 MMPLAYER_INI_GET_STRING( g_player_ini.gst_param[0], "general:gstparam1", DEFAULT_GST_PARAM );
191 MMPLAYER_INI_GET_STRING( g_player_ini.gst_param[1], "general:gstparam2", DEFAULT_GST_PARAM );
192 MMPLAYER_INI_GET_STRING( g_player_ini.gst_param[2], "general:gstparam3", DEFAULT_GST_PARAM );
193 MMPLAYER_INI_GET_STRING( g_player_ini.gst_param[3], "general:gstparam4", DEFAULT_GST_PARAM );
194 MMPLAYER_INI_GET_STRING( g_player_ini.gst_param[4], "general:gstparam5", DEFAULT_GST_PARAM );
196 /* audio filter (Preset)*/
197 g_player_ini.use_audio_filter_preset = iniparser_getboolean(dict, "sound effect:audio filter preset", DEFAULT_USE_AUDIO_FILTER_PRESET);
198 if (g_player_ini.use_audio_filter_preset)
200 MMPLAYER_INI_GET_BOOLEAN_FROM_LIST( g_player_ini.audio_filter_preset_list, MM_AUDIO_FILTER_PRESET_NUM,
201 "sound effect:audio filter preset list", DEFAULT_AUDIO_FILTER_PRESET_LIST );
202 MMPLAYER_INI_GET_BOOLEAN_FROM_LIST( g_player_ini.audio_filter_preset_earphone_only_list, MM_AUDIO_FILTER_PRESET_NUM,
203 "sound effect:audio filter preset earphone only", DEFAULT_AUDIO_FILTER_PRESET_LIST_EARPHONE_ONLY );
205 /* for audio filter custom (EQ / Extension filters) */
206 g_player_ini.use_audio_filter_custom = iniparser_getboolean(dict, "sound effect:audio filter custom", DEFAULT_USE_AUDIO_FILTER_CUSTOM);
207 if (g_player_ini.use_audio_filter_custom)
209 MMPLAYER_INI_GET_BOOLEAN_FROM_LIST( g_player_ini.audio_filter_custom_list, MM_AUDIO_FILTER_CUSTOM_NUM,
210 "sound effect:audio filter custom list", DEFAULT_AUDIO_FILTER_CUSTOM_LIST );
211 MMPLAYER_INI_GET_BOOLEAN_FROM_LIST( g_player_ini.audio_filter_custom_earphone_only_list, MM_AUDIO_FILTER_CUSTOM_NUM,
212 "sound effect:audio filter custom earphone only", DEFAULT_AUDIO_FILTER_CUSTOM_LIST_EARPHONE_ONLY );
213 /* for audio filter custom : EQ */
214 if (g_player_ini.audio_filter_custom_list[MM_AUDIO_FILTER_CUSTOM_EQ])
216 g_player_ini.audio_filter_custom_eq_num = iniparser_getint(dict, "sound effect:audio filter eq num",
217 DEFAULT_AUDIO_FILTER_CUSTOM_EQ_NUM);
218 if (g_player_ini.audio_filter_custom_eq_num < DEFAULT_AUDIO_FILTER_CUSTOM_EQ_NUM || g_player_ini.audio_filter_custom_eq_num > MM_AUDIO_FILTER_EQ_BAND_MAX)
220 debug_error("audio_filter_custom_eq_num(%d) is not valid range(%d - %d), set the value %d",
221 g_player_ini.audio_filter_custom_eq_num, DEFAULT_AUDIO_FILTER_CUSTOM_EQ_NUM, MM_AUDIO_FILTER_EQ_BAND_MAX, DEFAULT_AUDIO_FILTER_CUSTOM_EQ_NUM);
222 g_player_ini.audio_filter_custom_eq_num = DEFAULT_AUDIO_FILTER_CUSTOM_EQ_NUM;
225 /* for audio filter custom : extension filters */
226 g_player_ini.audio_filter_custom_ext_num = iniparser_getint(dict, "sound effect:audio filter ext num",
227 DEFAULT_AUDIO_FILTER_CUSTOM_EXT_NUM);
228 if (g_player_ini.audio_filter_custom_ext_num > 0)
230 MMPLAYER_INI_GET_INT_FROM_LIST( g_player_ini.audio_filter_custom_min_level_list, MM_AUDIO_FILTER_CUSTOM_NUM,
231 "sound effect:audio filter custom min list", DEFAULT_AUDIO_FILTER_CUSTOM_LIST );
232 MMPLAYER_INI_GET_INT_FROM_LIST( g_player_ini.audio_filter_custom_max_level_list, MM_AUDIO_FILTER_CUSTOM_NUM,
233 "sound effect:audio filter custom max list", DEFAULT_AUDIO_FILTER_CUSTOM_LIST );
238 for (i=0; i<MM_AUDIO_FILTER_PRESET_NUM; i++)
240 debug_log("audio_filter_preset_list: %d (is it for earphone only?(%d))\n", g_player_ini.audio_filter_preset_list[i], g_player_ini.audio_filter_preset_earphone_only_list[i]);
242 for (i=0; i<MM_AUDIO_FILTER_CUSTOM_NUM; i++)
244 debug_log("audio_filter_custom_list : %d (is it for earphone only?(%d))\n", g_player_ini.audio_filter_custom_list[i], g_player_ini.audio_filter_custom_earphone_only_list[i]);
246 debug_log("audio_filter_custom : eq_num(%d), ext_num(%d)\n", g_player_ini.audio_filter_custom_eq_num, g_player_ini.audio_filter_custom_ext_num )
247 for (i=0; i<MM_AUDIO_FILTER_CUSTOM_NUM; i++)
249 debug_log("aaudio_filter_custom_level_min_max_list : min(%d), max(%d)\n", g_player_ini.audio_filter_custom_min_level_list[i], g_player_ini.audio_filter_custom_max_level_list[i]);
254 MMPLAYER_INI_GET_STRING( g_player_ini.name_of_httpsrc, "http streaming:httpsrc element", DEFAULT_HTTPSRC );
255 MMPLAYER_INI_GET_STRING( g_player_ini.http_file_buffer_path, "http streaming:http file buffer path", DEFAULT_HTTP_FILE_BUFFER_PATH );
256 g_player_ini.http_buffering_limit = iniparser_getdouble(dict, "http streaming:http buffering high limit", DEFAULT_HTTP_BUFFERING_LIMIT);
257 g_player_ini.http_max_size_bytes = iniparser_getint(dict, "http streaming:http max size bytes", DEFAULT_HTTP_MAX_SIZE_BYTES);
258 g_player_ini.http_buffering_time = iniparser_getdouble(dict, "http streaming:http buffering time", DEFAULT_HTTP_BUFFERING_TIME);
259 g_player_ini.http_timeout = iniparser_getint(dict, "http streaming:http timeout", DEFAULT_HTTP_TIMEOUT);
262 MMPLAYER_INI_GET_STRING( g_player_ini.name_of_rtspsrc, "rtsp streaming:rtspsrc element", DEFAULT_RTSPSRC );
263 g_player_ini.rtsp_buffering_time = iniparser_getint(dict, "rtsp streaming:rtsp buffering time", DEFAULT_RTSP_BUFFERING);
264 g_player_ini.rtsp_rebuffering_time = iniparser_getint(dict, "rtsp streaming:rtsp rebuffering time", DEFAULT_RTSP_REBUFFERING);
265 g_player_ini.rtsp_do_typefinding = iniparser_getboolean(dict, "rtsp streaming:rtsp do typefinding", DEFAULT_RTSP_DO_TYPEFINDING);
266 g_player_ini.rtsp_error_concealment = iniparser_getboolean(dict, "rtsp streaming:rtsp error concealment", DEFAULT_RTSP_ERROR_CONCEALMENT);
268 else /* if dict is not available just fill the structure with default value */
270 debug_warning("failed to load ini. using hardcoded default\n");
273 g_player_ini.use_decodebin = DEFAULT_USE_DECODEBIN;
274 g_player_ini.disable_segtrap = DEFAULT_DISABLE_SEGTRAP;
275 g_player_ini.use_audio_filter_preset = DEFAULT_USE_AUDIO_FILTER_PRESET;
276 g_player_ini.use_audio_filter_custom = DEFAULT_USE_AUDIO_FILTER_CUSTOM;
277 g_player_ini.skip_rescan = DEFAULT_SKIP_RESCAN;
278 strncpy( g_player_ini.videosink_element_x, DEFAULT_VIDEOSINK_X, PLAYER_INI_MAX_STRLEN - 1 );
279 strncpy( g_player_ini.videosink_element_evas, DEFAULT_VIDEOSINK_EVAS, PLAYER_INI_MAX_STRLEN - 1 );
280 strncpy( g_player_ini.videosink_element_fake, DEFAULT_VIDEOSINK_FAKE, PLAYER_INI_MAX_STRLEN - 1 );
281 g_player_ini.generate_dot = DEFAULT_GENERATE_DOT;
282 g_player_ini.provide_clock= DEFAULT_PROVIDE_CLOCK;
283 g_player_ini.live_state_change_timeout = DEFAULT_LIVE_STATE_CHANGE_TIMEOUT;
284 g_player_ini.localplayback_state_change_timeout = DEFAULT_LOCALPLAYBACK_STATE_CHANGE_TIMEOUT;
285 g_player_ini.eos_delay = DEFAULT_EOS_DELAY;
286 g_player_ini.multiple_codec_supported = DEFAULT_MULTIPLE_CODEC_SUPPORTED;
287 g_player_ini.async_start = DEFAULT_ASYNC_START;
288 g_player_ini.delay_before_repeat = DEFAULT_DELAY_BEFORE_REPEAT;
291 strncpy( g_player_ini.name_of_drmsrc, DEFAULT_DRMSRC, PLAYER_INI_MAX_STRLEN - 1 );
292 strncpy( g_player_ini.name_of_audiosink, DEFAULT_AUDIOSINK, PLAYER_INI_MAX_STRLEN -1 );
293 strncpy( g_player_ini.name_of_video_converter, DEFAULT_VIDEO_CONVERTER, PLAYER_INI_MAX_STRLEN -1 );
296 __get_string_list( (gchar**) g_player_ini.exclude_element_keyword, DEFAULT_EXCLUDE_KEYWORD);
300 strncpy( g_player_ini.gst_param[0], DEFAULT_GST_PARAM, PLAYER_INI_MAX_PARAM_STRLEN - 1 );
301 strncpy( g_player_ini.gst_param[1], DEFAULT_GST_PARAM, PLAYER_INI_MAX_PARAM_STRLEN - 1 );
302 strncpy( g_player_ini.gst_param[2], DEFAULT_GST_PARAM, PLAYER_INI_MAX_PARAM_STRLEN - 1 );
303 strncpy( g_player_ini.gst_param[3], DEFAULT_GST_PARAM, PLAYER_INI_MAX_PARAM_STRLEN - 1 );
304 strncpy( g_player_ini.gst_param[4], DEFAULT_GST_PARAM, PLAYER_INI_MAX_PARAM_STRLEN - 1 );
307 strncpy( g_player_ini.name_of_httpsrc, DEFAULT_HTTPSRC, PLAYER_INI_MAX_STRLEN - 1 );
308 strncpy( g_player_ini.http_file_buffer_path, DEFAULT_HTTP_FILE_BUFFER_PATH, PLAYER_INI_MAX_STRLEN - 1 );
309 g_player_ini.http_buffering_limit = DEFAULT_HTTP_BUFFERING_LIMIT;
310 g_player_ini.http_max_size_bytes = DEFAULT_HTTP_MAX_SIZE_BYTES;
311 g_player_ini.http_buffering_time = DEFAULT_HTTP_BUFFERING_TIME;
312 g_player_ini.http_timeout = DEFAULT_HTTP_TIMEOUT;
315 strncpy( g_player_ini.name_of_rtspsrc, DEFAULT_RTSPSRC, PLAYER_INI_MAX_STRLEN - 1 );
316 g_player_ini.rtsp_buffering_time = DEFAULT_RTSP_BUFFERING;
317 g_player_ini.rtsp_rebuffering_time = DEFAULT_RTSP_REBUFFERING;
318 g_player_ini.rtsp_do_typefinding = DEFAULT_RTSP_DO_TYPEFINDING;
319 g_player_ini.rtsp_error_concealment = DEFAULT_RTSP_ERROR_CONCEALMENT;
322 /* free dict as we got our own structure */
323 iniparser_freedict (dict);
327 /* The simulator uses a separate ini file. */
328 //__mm_player_ini_force_setting();
332 debug_log("player settings -----------------------------------\n");
335 debug_log("use_decodebin : %d\n", g_player_ini.use_decodebin);
336 debug_log("use_audio_filter_preset : %d\n", g_player_ini.use_audio_filter_preset);
337 debug_log("use_audio_filter_custom : %d\n", g_player_ini.use_audio_filter_custom);
338 debug_log("disable_segtrap : %d\n", g_player_ini.disable_segtrap);
339 debug_log("skip rescan : %d\n", g_player_ini.skip_rescan);
340 debug_log("videosink element x: %s\n", g_player_ini.videosink_element_x);
341 debug_log("videosink element evas: %s\n", g_player_ini.videosink_element_evas);
342 debug_log("videosink element fake: %s\n", g_player_ini.videosink_element_fake);
343 debug_log("generate_dot : %d\n", g_player_ini.generate_dot);
344 debug_log("provide_clock : %d\n", g_player_ini.provide_clock);
345 debug_log("live_state_change_timeout(sec) : %d\n", g_player_ini.live_state_change_timeout);
346 debug_log("localplayback_state_change_timeout(sec) : %d\n", g_player_ini.localplayback_state_change_timeout);
347 debug_log("eos_delay(msec) : %d\n", g_player_ini.eos_delay);
348 debug_log("delay_before_repeat(msec) : %d\n", g_player_ini.delay_before_repeat);
349 debug_log("name_of_drmsrc : %s\n", g_player_ini.name_of_drmsrc);
350 debug_log("name_of_audiosink : %s\n", g_player_ini.name_of_audiosink);
351 debug_log("name_of_video_converter : %s\n", g_player_ini.name_of_video_converter);
352 debug_log("async_start : %d\n", g_player_ini.async_start);
353 debug_log("multiple_codec_supported : %d\n", g_player_ini.multiple_codec_supported);
355 debug_log("gst_param1 : %s\n", g_player_ini.gst_param[0]);
356 debug_log("gst_param2 : %s\n", g_player_ini.gst_param[1]);
357 debug_log("gst_param3 : %s\n", g_player_ini.gst_param[2]);
358 debug_log("gst_param4 : %s\n", g_player_ini.gst_param[3]);
359 debug_log("gst_param5 : %s\n", g_player_ini.gst_param[4]);
361 for ( idx = 0; g_player_ini.exclude_element_keyword[idx][0] != '\0'; idx++ )
363 debug_log("exclude_element_keyword [%d] : %s\n", idx, g_player_ini.exclude_element_keyword[idx]);
367 debug_log("name_of_httpsrc : %s\n", g_player_ini.name_of_httpsrc);
368 debug_log("http_file_buffer_path : %s \n", g_player_ini.http_file_buffer_path);
369 debug_log("http_buffering_limit : %f \n", g_player_ini.http_buffering_limit);
370 debug_log("http_max_size_bytes : %d \n", g_player_ini.http_max_size_bytes);
371 debug_log("http_buffering_time : %f \n", g_player_ini.http_buffering_time);
372 debug_log("http_timeout : %d \n", g_player_ini.http_timeout);
375 debug_log("name_of_rtspsrc : %s\n", g_player_ini.name_of_rtspsrc);
376 debug_log("rtsp_buffering_time(msec) : %d\n", g_player_ini.rtsp_buffering_time);
377 debug_log("rtsp_rebuffering_time(msec) : %d\n", g_player_ini.rtsp_rebuffering_time);
378 debug_log("rtsp_do_typefinding : %d \n", g_player_ini.rtsp_do_typefinding);
379 debug_log("rtsp_error_concealment : %d \n", g_player_ini.rtsp_error_concealment);
381 debug_log("---------------------------------------------------\n");
383 return MM_ERROR_NONE;
388 void __mm_player_ini_check_ini_status(void)
390 struct stat ini_buff;
392 if ( g_stat(MM_PLAYER_INI_DEFAULT_PATH, &ini_buff) < 0 )
394 debug_warning("failed to get player ini status\n");
398 if ( ini_buff.st_size < 5 )
400 debug_warning("player.ini file size=%d, Corrupted! So, Removed\n", (int)ini_buff.st_size);
402 g_remove( MM_PLAYER_INI_DEFAULT_PATH );
409 void __mm_player_ini_force_setting(void)
416 mm_player_ini_get_structure(void)
418 return &g_player_ini;
422 gboolean __generate_default_ini(void)
425 gchar* default_ini = MM_PLAYER_DEFAULT_INI;
428 /* create new file */
429 fp = fopen(MM_PLAYER_INI_DEFAULT_PATH, "wt");
436 /* writing default ini file */
437 if ( strlen(default_ini) != fwrite(default_ini, 1, strlen(default_ini), fp) )
448 void __get_string_list(gchar** out_list, gchar* str)
453 gchar* strtmp = NULL;
459 if ( strlen( str ) < 1 )
462 strtmp = g_strdup (str);
464 /* trimming. it works inplace */
465 g_strstrip( strtmp );
469 list = g_strsplit( strtmp, ",", 10 );
480 for( walk = list; *walk; walk++ )
482 strncpy( g_player_ini.exclude_element_keyword[i], *walk, (PLAYER_INI_MAX_STRLEN - 1) );
484 g_strstrip( g_player_ini.exclude_element_keyword[i] );
486 g_player_ini.exclude_element_keyword[i][PLAYER_INI_MAX_STRLEN - 1] = '\0';
491 /* mark last item to NULL */
492 g_player_ini.exclude_element_keyword[i][0] = '\0';