]> git.sesse.net Git - vlc/blob - src/playlist/playlist_internal.h
Simplify a bit main playlist loop.
[vlc] / src / playlist / playlist_internal.h
1 /*****************************************************************************
2  * playlist_internal.h : Playlist internals
3  *****************************************************************************
4  * Copyright (C) 1999-2008 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Samuel Hocevar <sam@zoy.org>
8  *          ClĂ©ment Stenac <zorglub@videolan.org>
9  *
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.
14  *
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.
19  *
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  *****************************************************************************/
24
25 #ifndef __LIBVLC_PLAYLIST_INTERNAL_H
26 # define __LIBVLC_PLAYLIST_INTERNAL_H 1
27
28 /**
29  *  \file
30  *  This file contain internal structures and function prototypes related
31  *  to the playlist in vlc
32  *
33  * \defgroup vlc_playlist Playlist
34  * @{
35  */
36
37 #include "input/input_interface.h"
38 #include <assert.h>
39
40 #include "art.h"
41 #include "fetcher.h"
42 #include "preparser.h"
43
44 typedef struct playlist_private_t
45 {
46     playlist_t           public_data;
47     playlist_preparser_t *p_preparser;  /**< Preparser data */
48     playlist_fetcher_t   *p_fetcher;    /**< Meta and art fetcher data */
49     sout_instance_t      *p_sout;       /**< Kept sout instance */
50
51     playlist_item_array_t items_to_delete; /**< Array of items and nodes to
52             delete... At the very end. This sucks. */
53
54     struct playlist_services_discovery_support_t {
55         /* the playlist items for category and onelevel */
56         playlist_item_t*    p_cat;
57         playlist_item_t*    p_one;
58         services_discovery_t * p_sd; /**< Loaded service discovery modules */
59     } ** pp_sds;
60     int                   i_sds;   /**< Number of service discovery modules */
61     input_thread_t *      p_input;  /**< the input thread associated
62                                      * with the current item */
63     struct {
64         /* Current status. These fields are readonly, only the playlist
65          * main loop can touch it*/
66         playlist_status_t   i_status;  /**< Current status of playlist */
67         playlist_item_t *   p_item; /**< Currently playing/active item */
68         playlist_item_t *   p_node; /**< Current node to play from */
69     } status;
70
71     struct {
72         /* Request. Use this to give orders to the playlist main loop  */
73         playlist_status_t   i_status; /**< requested playlist status */
74         playlist_item_t *   p_node;   /**< requested node to play from */
75         playlist_item_t *   p_item;   /**< requested item to play in the node */
76
77         int                 i_skip;   /**< Number of items to skip */
78
79         bool          b_request;/**< Set to true by the requester
80                                            The playlist sets it back to false
81                                            when processing the request */
82         vlc_mutex_t         lock;     /**< Lock to protect request */
83     } request;
84
85     bool     b_tree; /**< Display as a tree */
86     bool     b_doing_ml; /**< Doing media library stuff  get quicker */
87     bool     b_auto_preparse;
88     mtime_t  last_rebuild_date;
89     bool     b_reset_currently_playing; /** Reset current item array */
90     int      i_last_playlist_id; /**< Last id to an item */
91
92 } playlist_private_t;
93
94 #define pl_priv( pl ) ((playlist_private_t *)(pl))
95
96 /*****************************************************************************
97  * Prototypes
98  *****************************************************************************/
99
100 /* Creation/Deletion */
101 playlist_t *playlist_Create( vlc_object_t * );
102
103 /* */
104 void playlist_Activate( playlist_t * );
105 void playlist_Deactivate( playlist_t * );
106
107 /* */
108 playlist_item_t *playlist_ItemNewFromInput( playlist_t *p_playlist,
109                                               input_item_t *p_input );
110
111 /* Engine */
112 void playlist_MainLoop( playlist_t * );
113
114 void ResetCurrentlyPlaying( playlist_t *, bool, playlist_item_t * );
115
116 playlist_item_t * get_current_status_item( playlist_t * p_playlist);
117 playlist_item_t * get_current_status_node( playlist_t * p_playlist );
118 void set_current_status_item( playlist_t *, playlist_item_t * );
119 void set_current_status_node( playlist_t *, playlist_item_t * );
120
121 /* Control */
122 playlist_item_t * playlist_NextItem  ( playlist_t * );
123 int playlist_PlayItem  ( playlist_t *, playlist_item_t * );
124
125 /* Load/Save */
126 int playlist_MLLoad( playlist_t *p_playlist );
127 int playlist_MLDump( playlist_t *p_playlist );
128
129 /**********************************************************************
130  * Item management
131  **********************************************************************/
132
133 void playlist_SendAddNotify( playlist_t *p_playlist, int i_item_id,
134                              int i_node_id, bool b_signal );
135
136 playlist_item_t * playlist_NodeAddInput( playlist_t *, input_item_t *,
137         playlist_item_t *,int , int, bool );
138
139 /* Tree walking */
140 playlist_item_t *playlist_ItemFindFromInputAndRoot( playlist_t *p_playlist,
141                                    int i_input_id, playlist_item_t *p_root,
142                                    bool );
143
144 int playlist_DeleteFromInputInParent( playlist_t *, int, playlist_item_t *, bool );
145 int playlist_DeleteFromItemId( playlist_t*, int );
146 int playlist_ItemRelease( playlist_item_t * );
147
148 void playlist_release_current_input( playlist_t * p_playlist );
149 void playlist_set_current_input(
150     playlist_t * p_playlist, input_thread_t * p_input );
151
152
153 /**
154  * @}
155  */
156
157 #define PLAYLIST_DEBUG 1
158 //#undef PLAYLIST_DEBUG2
159
160 #ifdef PLAYLIST_DEBUG
161  #define PL_DEBUG( msg, args... ) msg_Dbg( p_playlist, msg, ## args )
162  #ifdef PLAYLIST_DEBUG2
163   #define PL_DEBUG2( msg, args... ) msg_Dbg( p_playlist, msg, ## args )
164  #else
165   #define PL_DEBUG2( msg, args... ) {}
166  #endif
167 #else
168  #define PL_DEBUG( msg, args ... ) {}
169  #define PL_DEBUG2( msg, args... ) {}
170 #endif
171
172 #define PLI_NAME( p ) p && p->p_input ? p->p_input->psz_name : "null"
173
174 #define PL_LOCK_IF( cond ) pl_lock_if( p_playlist, cond )
175 static inline void pl_lock_if( playlist_t * p_playlist, bool cond )
176 {
177     if( cond ) PL_LOCK; else PL_ASSERT_LOCKED;
178 }
179
180 #define PL_UNLOCK_IF( cond ) pl_unlock_if( p_playlist, cond )
181 static inline void pl_unlock_if( playlist_t * p_playlist, bool cond )
182 {
183     if( cond ) PL_UNLOCK;
184 }
185
186 #endif /* !__LIBVLC_PLAYLIST_INTERNAL_H */