1 /*****************************************************************************
2 * vlc_input.h: Core input structures
3 *****************************************************************************
4 * Copyright (C) 1999-2006 the VideoLAN team
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
8 * Laurent Aimar <fenrir@via.ecp.fr>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /* __ is need because conflict with <vlc/input.h> */
27 #define _VLC__INPUT_H 1
29 #include <vlc_playlist.h>
34 /*****************************************************************************
35 * input_item_t: Describes an input and is used to spawn input_thread_t objects
36 *****************************************************************************/
39 char *psz_name; /**< Name of this info */
40 char *psz_value; /**< Value of the info */
43 struct info_category_t
45 char *psz_name; /**< Name of this category */
46 int i_infos; /**< Number of infos in the category */
47 struct info_t **pp_infos; /**< Pointer to an array of infos */
53 int i_id; /**< Identifier of the item */
55 char *psz_name; /**< text describing this item */
56 char *psz_uri; /**< mrl of this item */
57 vlc_bool_t b_fixed_name; /**< Can the interface change the name ?*/
59 int i_options; /**< Number of input options */
60 char **ppsz_options; /**< Array of input options */
62 mtime_t i_duration; /**< Duration in milliseconds*/
64 uint8_t i_type; /**< Type (file, disc, ...) */
65 vlc_bool_t b_prefers_tree; /**< Do we prefer being displayed as tree*/
67 int i_categories; /**< Number of info categories */
68 info_category_t **pp_categories; /**< Pointer to the first info category */
70 int i_es; /**< Number of es format descriptions */
71 es_format_t **es; /**< Es formats */
73 input_stats_t *p_stats; /**< Statistics */
74 int i_nb_played; /**< Number of times played */
78 vlc_mutex_t lock; /**< Lock for the item */
81 #define ITEM_TYPE_UNKNOWN 0
82 #define ITEM_TYPE_AFILE 1
83 #define ITEM_TYPE_VFILE 2
84 #define ITEM_TYPE_DIRECTORY 3
85 #define ITEM_TYPE_DISC 4
86 #define ITEM_TYPE_CDDA 5
87 #define ITEM_TYPE_CARD 6
88 #define ITEM_TYPE_NET 7
89 #define ITEM_TYPE_PLAYLIST 8
90 #define ITEM_TYPE_NODE 9
91 #define ITEM_TYPE_NUMBER 10
93 static inline void input_ItemInit( vlc_object_t *p_o, input_item_t *p_i )
95 memset( p_i, 0, sizeof(input_item_t) );
101 p_i->ppsz_options = 0;
102 p_i->i_categories = 0 ;
103 p_i->pp_categories = 0;
104 p_i->i_type = ITEM_TYPE_UNKNOWN;
105 p_i->b_fixed_name = VLC_TRUE;
107 p_i->p_stats = (input_stats_t*) malloc( sizeof( input_stats_t ) );
109 vlc_mutex_init( p_o, &p_i->p_stats->lock );
111 vlc_mutex_init( p_o, &p_i->lock );
114 static inline void input_ItemCopyOptions( input_item_t *p_parent,
115 input_item_t *p_child )
118 for( i = 0 ; i< p_parent->i_options; i++ )
120 char *psz_option= strdup( p_parent->ppsz_options[i] );
121 p_child->i_options++;
122 p_child->ppsz_options = (char **)realloc( p_child->ppsz_options,
125 p_child->ppsz_options[p_child->i_options-1] = psz_option;
129 VLC_EXPORT( void, input_ItemAddOption,( input_item_t *, const char * ) );
130 VLC_EXPORT( void, input_ItemAddOptionNoDup,( input_item_t *, const char * ) );
132 static inline void input_ItemClean( input_item_t *p_i )
134 if( p_i->psz_name ) free( p_i->psz_name );
135 if( p_i->psz_uri ) free( p_i->psz_uri );
136 if( p_i->p_stats ) free( p_i->p_stats );
140 if( p_i->p_meta ) vlc_meta_Delete( p_i->p_meta );
142 while( p_i->i_options )
145 if( p_i->ppsz_options[p_i->i_options] )
146 free( p_i->ppsz_options[p_i->i_options] );
147 if( !p_i->i_options ) free( p_i->ppsz_options );
153 es_format_Clean( p_i->es[p_i->i_es] );
154 if( !p_i->i_es ) free( p_i->es );
157 while( p_i->i_categories )
159 info_category_t *p_category =
160 p_i->pp_categories[--(p_i->i_categories)];
162 while( p_category->i_infos )
164 p_category->i_infos--;
166 if( p_category->pp_infos[p_category->i_infos]->psz_name )
167 free( p_category->pp_infos[p_category->i_infos]->psz_name);
168 if( p_category->pp_infos[p_category->i_infos]->psz_value )
169 free( p_category->pp_infos[p_category->i_infos]->psz_value );
170 free( p_category->pp_infos[p_category->i_infos] );
172 if( !p_category->i_infos ) free( p_category->pp_infos );
175 if( p_category->psz_name ) free( p_category->psz_name );
178 if( !p_i->i_categories ) free( p_i->pp_categories );
181 vlc_mutex_destroy( &p_i->lock );
184 VLC_EXPORT( char *, input_ItemGetInfo, ( input_item_t *p_i, const char *psz_cat,const char *psz_name ) );
185 VLC_EXPORT(int, input_ItemAddInfo, ( input_item_t *p_i, const char *psz_cat, const char *psz_name, const char *psz_format, ... ) );
187 #define input_ItemNew( a,b,c ) input_ItemNewExt( a, b, c, 0, NULL, -1 )
188 #define input_ItemNewExt(a,b,c,d,e,f) __input_ItemNewExt( VLC_OBJECT(a),b,c,d,e,f)
189 VLC_EXPORT( input_item_t *, __input_ItemNewExt, (vlc_object_t *, const char *, const char*, int, const char **, int) );
190 VLC_EXPORT( input_item_t *, input_ItemNewWithType, ( vlc_object_t *, const char *, const char *e, int, const char **, int, int ) );
192 VLC_EXPORT( input_item_t *, input_ItemGetById, (playlist_t *, int ) );
195 /*****************************************************************************
196 * Seek point: (generalisation of chapters)
197 *****************************************************************************/
200 int64_t i_byte_offset;
201 int64_t i_time_offset;
206 static inline seekpoint_t *vlc_seekpoint_New( void )
208 seekpoint_t *point = (seekpoint_t*)malloc( sizeof( seekpoint_t ) );
209 point->i_byte_offset =
210 point->i_time_offset = -1;
212 point->psz_name = NULL;
216 static inline void vlc_seekpoint_Delete( seekpoint_t *point )
219 if( point->psz_name ) free( point->psz_name );
223 static inline seekpoint_t *vlc_seekpoint_Duplicate( seekpoint_t *src )
225 seekpoint_t *point = vlc_seekpoint_New();
226 if( src->psz_name ) point->psz_name = strdup( src->psz_name );
227 point->i_time_offset = src->i_time_offset;
228 point->i_byte_offset = src->i_byte_offset;
232 /*****************************************************************************
234 *****************************************************************************/
239 vlc_bool_t b_menu; /* Is it a menu or a normal entry */
241 int64_t i_length; /* Length(microsecond) if known, else 0 */
242 int64_t i_size; /* Size (bytes) if known, else 0 */
244 /* Title seekpoint */
246 seekpoint_t **seekpoint;
250 static inline input_title_t *vlc_input_title_New( )
252 input_title_t *t = (input_title_t*)malloc( sizeof( input_title_t ) );
255 t->b_menu = VLC_FALSE;
264 static inline void vlc_input_title_Delete( input_title_t *t )
270 if( t->psz_name ) free( t->psz_name );
271 for( i = 0; i < t->i_seekpoint; i++ )
273 if( t->seekpoint[i]->psz_name ) free( t->seekpoint[i]->psz_name );
274 free( t->seekpoint[i] );
276 if( t->seekpoint ) free( t->seekpoint );
280 static inline input_title_t *vlc_input_title_Duplicate( input_title_t *t )
282 input_title_t *dup = vlc_input_title_New( );
285 if( t->psz_name ) dup->psz_name = strdup( t->psz_name );
286 dup->b_menu = t->b_menu;
287 dup->i_length = t->i_length;
288 dup->i_size = t->i_size;
289 dup->i_seekpoint = t->i_seekpoint;
290 if( t->i_seekpoint > 0 )
292 dup->seekpoint = (seekpoint_t**)calloc( t->i_seekpoint,
293 sizeof(seekpoint_t*) );
295 for( i = 0; i < t->i_seekpoint; i++ )
297 dup->seekpoint[i] = vlc_seekpoint_Duplicate( t->seekpoint[i] );
304 /*****************************************************************************
305 * input defines/constants.
306 *****************************************************************************/
319 /* "rate" default, min/max
320 * A rate below 1000 plays the movie faster,
321 * A rate above 1000 plays the movie slower.
323 #define INPUT_RATE_DEFAULT 1000
324 #define INPUT_RATE_MIN 125 /* Up to 8/1 */
325 #define INPUT_RATE_MAX 8000 /* Up to 1/8 */
327 /* input_source_t: gathers all information per input source */
330 /* Input item description */
331 input_item_t *p_item;
333 /* Access/Stream/Demux plugins */
338 /* Title infos for that input */
339 vlc_bool_t b_title_demux; /* Titles/Seekpoints provided by demux */
341 input_title_t **title;
344 int i_seekpoint_offset;
348 int i_seekpoint_start;
352 vlc_bool_t b_can_pace_control;
353 vlc_bool_t b_can_pause;
354 vlc_bool_t b_eof; /* eof of demuxer */
356 /* Clock average variation */
361 /* i_update field of access_t/demux_t */
362 #define INPUT_UPDATE_NONE 0x0000
363 #define INPUT_UPDATE_SIZE 0x0001
364 #define INPUT_UPDATE_TITLE 0x0010
365 #define INPUT_UPDATE_SEEKPOINT 0x0020
366 #define INPUT_UPDATE_META 0x0040
368 /* Input control XXX: internal */
369 #define INPUT_CONTROL_FIFO_SIZE 100
371 /*****************************************************************************
373 *****************************************************************************
374 * XXX: this strucrures is *PRIVATE* so nobody can touch it out of src/input.
375 * I plan to move it to src/input/input_internal.h anyway
377 * XXX: look at src/input/input.c:input_CreateThread for accessible variables
378 * YOU CANNOT HAVE ACCESS TO THE CONTENT OF input_thread_t except
379 * p_input->input.p_item (and it's only temporary).
380 * XXX: move the docs somewhere (better than src/input )
381 *****************************************************************************/
382 struct input_thread_t
386 /* Global properties */
388 vlc_bool_t b_can_pace_control;
389 vlc_bool_t b_can_pause;
390 vlc_bool_t b_preparsing;
397 int64_t i_start; /* :start-time,0 by default */
398 int64_t i_time; /* Current time */
399 int64_t i_stop; /* :stop-time, 0 if none */
401 /* Title infos FIXME multi-input (not easy) ? */
403 input_title_t **title;
406 int i_seekpoint_offset;
408 /* User bookmarks FIXME won't be easy with multiples input */
410 seekpoint_t **bookmark;
412 /* Global meta datas FIXME move to input_item_t ? */
417 sout_instance_t *p_sout; /* XXX Move it to es_out ? */
418 vlc_bool_t b_out_pace_control; /* idem ? */
420 /* Internal caching common for all inputs */
423 /* Main input properties */
424 input_source_t input;
426 /* Slave demuxers (subs, and others) */
428 input_source_t **slave;
432 counter_t *p_read_packets;
433 counter_t *p_read_bytes;
434 counter_t *p_input_bitrate;
435 counter_t *p_demux_read;
436 counter_t *p_demux_bitrate;
437 counter_t *p_decoded_audio;
438 counter_t *p_decoded_video;
439 counter_t *p_decoded_sub;
440 counter_t *p_sout_sent_packets;
441 counter_t *p_sout_sent_bytes;
442 counter_t *p_sout_send_bitrate;
443 counter_t *p_played_abuffers;
444 counter_t *p_lost_abuffers;
445 counter_t *p_displayed_pictures;
446 counter_t *p_lost_pictures;
447 vlc_mutex_t counters_lock;
450 /* Buffer of pending actions */
451 vlc_mutex_t lock_control;
455 /* XXX: val isn't duplicated so it won't works with string */
458 } control[INPUT_CONTROL_FIFO_SIZE];
461 /*****************************************************************************
463 *****************************************************************************/
464 #define input_CreateThread(a,b) __input_CreateThread(VLC_OBJECT(a),b)
465 VLC_EXPORT( input_thread_t *, __input_CreateThread, ( vlc_object_t *, input_item_t * ) );
466 #define input_CreateThread2(a,b,c) __input_CreateThread2(VLC_OBJECT(a),b,c)
467 VLC_EXPORT( input_thread_t *, __input_CreateThread2, ( vlc_object_t *, input_item_t *, char * ) );
468 #define input_Preparse(a,b) __input_Preparse(VLC_OBJECT(a),b)
469 VLC_EXPORT( int, __input_Preparse, ( vlc_object_t *, input_item_t * ) );
471 #define input_Read(a,b,c) __input_Read(VLC_OBJECT(a),b, c)
472 VLC_EXPORT( int, __input_Read, ( vlc_object_t *, input_item_t *, vlc_bool_t ) );
473 VLC_EXPORT( void, input_StopThread, ( input_thread_t * ) );
474 VLC_EXPORT( void, input_DestroyThread, ( input_thread_t * ) );
477 int input_MetaFetch ( playlist_t *, input_item_t * );
478 int input_ArtFetch ( playlist_t *, input_item_t * );
479 vlc_bool_t input_MetaSatisfied ( playlist_t*, input_item_t*,
480 uint32_t*, uint32_t*, vlc_bool_t );
481 int input_DownloadAndCacheArt ( playlist_t *, input_item_t * );
485 /* input variable "position" */
486 INPUT_GET_POSITION, /* arg1= double * res= */
487 INPUT_SET_POSITION, /* arg1= double res=can fail */
489 /* input variable "length" */
490 INPUT_GET_LENGTH, /* arg1= int64_t * res=can fail */
492 /* input variable "time" */
493 INPUT_GET_TIME, /* arg1= int64_t * res= */
494 INPUT_SET_TIME, /* arg1= int64_t res=can fail */
496 /* input variable "rate" (1 is DEFAULT_RATE) */
497 INPUT_GET_RATE, /* arg1= int * res= */
498 INPUT_SET_RATE, /* arg1= int res=can fail */
500 /* input variable "state" */
501 INPUT_GET_STATE, /* arg1= int * res= */
502 INPUT_SET_STATE, /* arg1= int res=can fail */
504 /* input variable "audio-delay" and "sub-delay" */
505 INPUT_GET_AUDIO_DELAY, /* arg1 = int* res=can fail */
506 INPUT_SET_AUDIO_DELAY, /* arg1 = int res=can fail */
507 INPUT_GET_SPU_DELAY, /* arg1 = int* res=can fail */
508 INPUT_SET_SPU_DELAY, /* arg1 = int res=can fail */
511 INPUT_ADD_INFO, /* arg1= char* arg2= char* arg3=... res=can fail */
512 INPUT_GET_INFO, /* arg1= char* arg2= char* arg3= char** res=can fail */
513 INPUT_DEL_INFO, /* arg1= char* arg2= char* res=can fail */
514 INPUT_SET_NAME, /* arg1= char* res=can fail */
516 /* Input config options */
517 INPUT_ADD_OPTION, /* arg1= char * arg2= char * res=can fail*/
519 /* Input properties */
520 INPUT_GET_BYTE_POSITION, /* arg1= int64_t * res= */
521 INPUT_SET_BYTE_SIZE, /* arg1= int64_t * res= */
524 INPUT_GET_BOOKMARKS, /* arg1= seekpoint_t *** arg2= int * res=can fail */
525 INPUT_CLEAR_BOOKMARKS, /* res=can fail */
526 INPUT_ADD_BOOKMARK, /* arg1= seekpoint_t * res=can fail */
527 INPUT_CHANGE_BOOKMARK, /* arg1= seekpoint_t * arg2= int * res=can fail */
528 INPUT_DEL_BOOKMARK, /* arg1= seekpoint_t * res=can fail */
529 INPUT_SET_BOOKMARK, /* arg1= int res=can fail */
531 /* On the fly input slave */
532 INPUT_ADD_SLAVE /* arg1= char * */
535 VLC_EXPORT( int, input_vaControl,( input_thread_t *, int i_query, va_list ) );
536 VLC_EXPORT( int, input_Control, ( input_thread_t *, int i_query, ... ) );
538 VLC_EXPORT( decoder_t *, input_DecoderNew, ( input_thread_t *, es_format_t *, vlc_bool_t b_force_decoder ) );
539 VLC_EXPORT( void, input_DecoderDelete, ( decoder_t * ) );
540 VLC_EXPORT( void, input_DecoderDecode,( decoder_t *, block_t * ) );
542 VLC_EXPORT( vlc_bool_t, input_AddSubtitles, ( input_thread_t *, char *, vlc_bool_t ) );