1 /*****************************************************************************
2 * vlc_playlist.h : Playlist functions
3 *****************************************************************************
4 * Copyright (C) 1999-2004 VideoLAN
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
26 * This file contain structures and function prototypes related
27 * to the playlist in vlc
31 * \defgroup vlc_playlist Playlist
32 * Brief description. Longer description
37 * playlist export helper structure
39 struct playlist_export_t
48 playlist_item_t *p_parent;
52 * playlist item / node
55 struct playlist_item_t
57 input_item_t input; /**< input item descriptor */
59 /* Tree specific fields */
60 int i_children; /**< Number of children
62 playlist_item_t **pp_children; /**< Children nodes/items */
63 int i_parents; /**< Number of parents */
64 struct item_parent_t **pp_parents; /**< Parents */
65 int i_serial; /**< Has this node been updated ? */
67 uint8_t i_flags; /**< Flags */
70 int i_nb_played; /**< How many times was this item played ? */
73 vlc_bool_t b_autodeletion; /**< Indicates whther this item is to
74 * be deleted after playback. True mean
75 * that this item is to be deleted
76 * after playback, false otherwise */
77 vlc_bool_t b_enabled; /**< Indicates whether this item is to be
78 * played or skipped */
79 /* END LEGACY FIELDS */
82 #define PLAYLIST_SAVE_FLAG 0x01 /**< Must it be saved */
83 #define PLAYLIST_SKIP_FLAG 0x02 /**< Must playlist skip after it ? */
84 #define PLAYLIST_ENA_FLAG 0x04 /**< Is it enabled ? */
85 #define PLAYLIST_DEL_FLAG 0x08 /**< Autodelete ? */
86 #define PLAYLIST_RO_FLAG 0x10 /**< Write-enabled ? */
92 struct playlist_view_t
94 char * psz_name; /**< View name */
95 int i_id; /**< Identifier for the view */
96 playlist_item_t * p_root; /**< Root node */
104 #define VIEW_CATEGORY 1
105 #define VIEW_SIMPLE 2
107 #define VIEW_FIRST_SORTED 4
108 #define VIEW_S_AUTHOR 4
110 #define VIEW_LAST_SORTED 4
112 #define VIEW_FIRST_CUSTOM 100
117 typedef enum { PLAYLIST_STOPPED,PLAYLIST_RUNNING,PLAYLIST_PAUSED } playlist_status_t;
120 struct services_discovery_t
123 const char *psz_module;
127 services_discovery_sys_t *p_sys;
128 void (*pf_run) ( services_discovery_t *);
131 struct playlist_preparse_t
136 input_item_t **pp_waiting;
141 * Structure containing information about the playlist
148 These members are uniq to playlist_t
151 int i_index; /**< current index into the playlist */
152 int i_enabled; /**< How many items are enabled ? */
154 int i_size; /**< total size of the list */
155 playlist_item_t ** pp_items; /**< array of pointers to the
157 int i_all_size; /**< size of list of items and nodes */
158 playlist_item_t ** pp_all_items; /**< array of pointers to the
159 * playlist items and nodes */
161 int i_views; /**< Number of views */
162 playlist_view_t ** pp_views; /**< array of pointers to the
165 input_thread_t * p_input; /**< the input thread ascosiated
166 * with the current item */
168 mtime_t request_date; /**< Used for profiling */
170 int i_last_id; /**< Last id to an item */
171 int i_sort; /**< Last sorting applied to the playlist */
172 int i_order; /**< Last ordering applied to the playlist */
174 playlist_item_t * p_general; /**< Keep a pointer on the "general"
177 services_discovery_t **pp_sds;
180 vlc_bool_t b_go_next; /*< Go further than the parent node ? */
184 playlist_status_t i_status; /**< Current status of playlist */
186 /* R/O fields, don't touch if you aren't the playlist thread */
188 playlist_item_t * p_item; /**< Currently playing/active item */
189 playlist_item_t * p_node; /**< Current node to play from */
190 int i_view; /**< Current view */
195 /* Playlist thread uses this info to calculate the next position */
196 int i_view; /**< requested view id */
197 playlist_item_t * p_node; /**< requested node to play from */
198 playlist_item_t * p_item; /**< requested item to play in the node */
200 int i_skip; /**< Number of items to skip */
201 int i_goto; /**< Direct index to go to (non-view)*/
203 vlc_bool_t b_request; /**< Set to true by the requester
204 The playlist sets it back to false
205 when processing the request */
206 vlc_mutex_t lock; /**< Lock to protect request */
209 playlist_preparse_t *p_preparse;
214 /* Helper to add an item */
215 struct playlist_add_t
217 playlist_item_t *p_node;
218 playlist_item_t *p_item;
225 #define SORT_TITLE_NODES_FIRST 2
226 #define SORT_AUTHOR 3
227 #define SORT_RANDOM 4
228 #define SORT_DURATION 5
230 #define ORDER_NORMAL 0
231 #define ORDER_REVERSE 1
233 /*****************************************************************************
235 *****************************************************************************/
237 /* Creation/Deletion */
238 #define playlist_Create(a) __playlist_Create(VLC_OBJECT(a))
239 playlist_t * __playlist_Create ( vlc_object_t * );
240 int playlist_Destroy ( playlist_t * );
242 /* Playlist control */
243 #define playlist_Play(p) playlist_LockControl(p,PLAYLIST_PLAY )
244 #define playlist_Pause(p) playlist_LockControl(p,PLAYLIST_PAUSE )
245 #define playlist_Stop(p) playlist_LockControl(p,PLAYLIST_STOP )
246 #define playlist_Next(p) playlist_LockControl(p,PLAYLIST_SKIP, 1)
247 #define playlist_Prev(p) playlist_LockControl(p,PLAYLIST_SKIP, -1)
248 #define playlist_Skip(p,i) playlist_LockControl(p,PLAYLIST_SKIP, i)
249 #define playlist_Goto(p,i) playlist_LockControl(p,PLAYLIST_GOTO, i)
251 VLC_EXPORT( int, playlist_Control, ( playlist_t *, int, ... ) );
252 VLC_EXPORT( int, playlist_LockControl, ( playlist_t *, int, ... ) );
254 VLC_EXPORT( int, playlist_Clear, ( playlist_t * ) );
255 VLC_EXPORT( int, playlist_LockClear, ( playlist_t * ) );
257 VLC_EXPORT( int, playlist_PreparseEnqueue, (playlist_t *, input_item_t *) );
259 /* Services discovery */
261 VLC_EXPORT( int, playlist_ServicesDiscoveryAdd, (playlist_t *, const char *));
262 VLC_EXPORT( int, playlist_ServicesDiscoveryRemove, (playlist_t *, const char *));
263 VLC_EXPORT( int, playlist_AddSDModules, (playlist_t *, char *));
264 VLC_EXPORT( vlc_bool_t, playlist_IsServicesDiscoveryLoaded, ( playlist_t *,const char *));
267 /* Item management functions (act on items) */
268 #define playlist_AddItem(p,pi,i1,i2) playlist_ItemAdd(p,pi,i1,i2)
269 #define playlist_ItemNew( a , b, c ) __playlist_ItemNew(VLC_OBJECT(a) , b , c )
270 #define playlist_ItemCopy( a, b ) __playlist_ItemCopy(VLC_OBJECT(a), b )
271 VLC_EXPORT( playlist_item_t* , __playlist_ItemNew, ( vlc_object_t *,const char *,const char * ) );
272 VLC_EXPORT( playlist_item_t* , __playlist_ItemCopy, ( vlc_object_t *,playlist_item_t* ) );
273 VLC_EXPORT( playlist_item_t* , playlist_ItemNewWithType, ( vlc_object_t *,const char *,const char *, int ) );
274 VLC_EXPORT( int, playlist_ItemDelete, ( playlist_item_t * ) );
275 VLC_EXPORT( int, playlist_ItemAddParent, ( playlist_item_t *, int,playlist_item_t *) );
276 VLC_EXPORT( int, playlist_CopyParents, ( playlist_item_t *,playlist_item_t *) );
277 /* Item informations accessors */
278 VLC_EXPORT( int, playlist_ItemSetName, (playlist_item_t *, char * ) );
279 VLC_EXPORT( int, playlist_ItemSetDuration, (playlist_item_t *, mtime_t ) );
282 /* View management functions */
283 VLC_EXPORT( int, playlist_ViewInsert, (playlist_t *, int, char * ) );
284 VLC_EXPORT( int, playlist_ViewDelete, (playlist_t *,playlist_view_t* ) );
285 VLC_EXPORT( playlist_view_t *, playlist_ViewFind, (playlist_t *, int ) );
286 VLC_EXPORT( int, playlist_ViewUpdate, (playlist_t *, int ) );
287 VLC_EXPORT( int, playlist_ViewDump, (playlist_t *, playlist_view_t * ) );
288 VLC_EXPORT( int, playlist_ViewEmpty, (playlist_t *, int, vlc_bool_t ) );
290 /* Node management */
291 VLC_EXPORT( playlist_item_t *, playlist_NodeCreate, ( playlist_t *,int,char *, playlist_item_t * p_parent ) );
292 VLC_EXPORT( int, playlist_NodeAppend, (playlist_t *,int,playlist_item_t*,playlist_item_t *) );
293 VLC_EXPORT( int, playlist_NodeInsert, (playlist_t *,int,playlist_item_t*,playlist_item_t *, int) );
294 VLC_EXPORT( int, playlist_NodeRemoveItem, (playlist_t *,playlist_item_t*,playlist_item_t *) );
295 VLC_EXPORT( int, playlist_NodeChildrenCount, (playlist_t *,playlist_item_t* ) );
296 VLC_EXPORT( playlist_item_t *, playlist_ChildSearchName, (playlist_item_t*, const char* ) );
297 VLC_EXPORT( int, playlist_NodeDelete, ( playlist_t *, playlist_item_t *, vlc_bool_t , vlc_bool_t ) );
298 VLC_EXPORT( int, playlist_NodeEmpty, ( playlist_t *, playlist_item_t *, vlc_bool_t ) );
301 playlist_item_t *playlist_FindNextFromParent( playlist_t *p_playlist,
303 playlist_item_t *p_root,
304 playlist_item_t *p_node,
305 playlist_item_t *p_item );
306 playlist_item_t *playlist_FindPrevFromParent( playlist_t *p_playlist,
308 playlist_item_t *p_root,
309 playlist_item_t *p_node,
310 playlist_item_t *p_item );
313 /* Simple add/remove functions */
314 /* These functions add the item to the "simple" view (+all & category )*/
315 VLC_EXPORT( int, playlist_Add, ( playlist_t *, const char *, const char *, int, int ) );
316 VLC_EXPORT( int, playlist_AddExt, ( playlist_t *, const char *, const char *, int, int, mtime_t, const char **,int ) );
317 VLC_EXPORT( int, playlist_ItemAdd, ( playlist_t *, playlist_item_t *, int, int ) );
318 VLC_EXPORT(int, playlist_NodeAddItem, ( playlist_t *, playlist_item_t *,int,playlist_item_t *,int , int ) );
320 /* Misc item operations (act on item+playlist) */
321 VLC_EXPORT( int, playlist_Delete, ( playlist_t *, int ) );
322 VLC_EXPORT( int, playlist_LockDelete, ( playlist_t *, int ) );
323 VLC_EXPORT( int, playlist_Disable, ( playlist_t *, playlist_item_t * ) );
324 VLC_EXPORT( int, playlist_Enable, ( playlist_t *, playlist_item_t * ) );
325 VLC_EXPORT( int, playlist_ItemToNode, (playlist_t *,playlist_item_t *) );
326 VLC_EXPORT( int, playlist_LockItemToNode, (playlist_t *,playlist_item_t *) );
327 VLC_EXPORT( int, playlist_Replace, (playlist_t *,playlist_item_t *, input_item_t*) );
328 VLC_EXPORT( int, playlist_LockReplace, (playlist_t *,playlist_item_t *, input_item_t*) );
331 /* Item search functions */
332 VLC_EXPORT( playlist_item_t *, playlist_ItemGetById, (playlist_t *, int) );
333 VLC_EXPORT( playlist_item_t *, playlist_LockItemGetById, (playlist_t *, int) );
334 VLC_EXPORT( playlist_item_t *, playlist_ItemGetByPos, (playlist_t *, int) );
335 VLC_EXPORT( playlist_item_t *, playlist_LockItemGetByPos, (playlist_t *, int) );
336 VLC_EXPORT( playlist_item_t *, playlist_ItemGetByInput, (playlist_t *,input_item_t * ) );
337 VLC_EXPORT( playlist_item_t *, playlist_LockItemGetByInput, (playlist_t *,input_item_t * ) );
338 VLC_EXPORT( int, playlist_GetPositionById, (playlist_t *,int ) );
340 VLC_EXPORT( int, playlist_ItemAddOption, (playlist_item_t *, const char *) );
342 /* Playlist sorting */
343 #define playlist_SortID(p, i) playlist_Sort( p, SORT_ID, i)
344 #define playlist_SortTitle(p, i) playlist_Sort( p, SORT_TITLE, i)
345 #define playlist_SortAuthor(p, i) playlist_Sort( p, SORT_AUTHOR, i)
346 #define playlist_SortGroup(p, i) playlist_Sort( p, SORT_GROUP, i)
347 VLC_EXPORT( int, playlist_Sort, ( playlist_t *, int, int) );
348 VLC_EXPORT( int, playlist_Move, ( playlist_t *, int, int ) );
349 VLC_EXPORT( int, playlist_NodeGroup, ( playlist_t *, int,playlist_item_t *,playlist_item_t **,int, int, int ) );
350 VLC_EXPORT( int, playlist_NodeSort, ( playlist_t *, playlist_item_t *,int, int ) );
351 VLC_EXPORT( int, playlist_RecursiveNodeSort, ( playlist_t *, playlist_item_t *,int, int ) );
354 VLC_EXPORT( int, playlist_Import, ( playlist_t *, const char * ) );
355 VLC_EXPORT( int, playlist_Export, ( playlist_t *, const char *, const char * ) );
357 /***********************************************************************
359 ***********************************************************************/
363 * tell if a playlist is currently playing.
364 * \param p_playlist the playlist to check
365 * \return true if playlist is playing, false otherwise
367 static inline vlc_bool_t playlist_IsPlaying( playlist_t * p_playlist )
369 vlc_bool_t b_playing;
371 vlc_mutex_lock( &p_playlist->object_lock );
372 b_playing = p_playlist->status.i_status == PLAYLIST_RUNNING;
373 vlc_mutex_unlock( &p_playlist->object_lock );
379 * tell if a playlist is currently empty
380 * \param p_playlist the playlist to check
381 * \return true if the playlist is empty, false otherwise
383 static inline vlc_bool_t playlist_IsEmpty( playlist_t * p_playlist )
387 vlc_mutex_lock( &p_playlist->object_lock );
388 b_empty = p_playlist->i_size == 0;
389 vlc_mutex_unlock( &p_playlist->object_lock );