git.sesse.net Git - vlc/blob - 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  *          Clément 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     bool     b_cant_sleep;
  89     mtime_t  gc_date;
  90     mtime_t  last_rebuild_date;
  91     bool     b_reset_currently_playing; /** Reset current item array */
  92     int      i_last_playlist_id; /**< Last id to an item */
  93
  94 } playlist_private_t;
  95
  96 #define pl_priv( pl ) ((playlist_private_t *)(pl))
  97
  98 /*****************************************************************************
  99  * Prototypes
 100  *****************************************************************************/
 101
 102 /* Creation/Deletion */
 103 playlist_t *playlist_Create( vlc_object_t * );
 104
 105 /* */
 106 void playlist_Activate( playlist_t * );
 107 void playlist_Deactivate( playlist_t * );
 108
 109 /* */
 110 playlist_item_t *playlist_ItemNewFromInput( playlist_t *p_playlist,
 111                                               input_item_t *p_input );
 112
 113 /* Engine */
 114 void playlist_MainLoop( playlist_t * );
 115 void playlist_LastLoop( playlist_t * );
 116 void *playlist_PreparseLoop( void * );
 117 void *playlist_FetcherLoop( void * );
 118
 119 void ResetCurrentlyPlaying( playlist_t *, bool, playlist_item_t * );
 120
 121 playlist_item_t * get_current_status_item( playlist_t * p_playlist);
 122 playlist_item_t * get_current_status_node( playlist_t * p_playlist );
 123 void set_current_status_item( playlist_t *, playlist_item_t * );
 124 void set_current_status_node( playlist_t *, playlist_item_t * );
 125
 126 /* Control */
 127 playlist_item_t * playlist_NextItem  ( playlist_t * );
 128 int playlist_PlayItem  ( playlist_t *, playlist_item_t * );
 129
 130 /* Load/Save */
 131 int playlist_MLLoad( playlist_t *p_playlist );
 132 int playlist_MLDump( playlist_t *p_playlist );
 133
 134 /**********************************************************************
 135  * Item management
 136  **********************************************************************/
 137
 138 void playlist_SendAddNotify( playlist_t *p_playlist, int i_item_id,
 139                              int i_node_id, bool b_signal );
 140
 141 playlist_item_t * playlist_NodeAddInput( playlist_t *, input_item_t *,
 142         playlist_item_t *,int , int, bool );
 143
 144 /* Tree walking */
 145 playlist_item_t *playlist_ItemFindFromInputAndRoot( playlist_t *p_playlist,
 146                                    int i_input_id, playlist_item_t *p_root,
 147                                    bool );
 148
 149 int playlist_DeleteFromInputInParent( playlist_t *, int, playlist_item_t *, bool );
 150 int playlist_DeleteFromItemId( playlist_t*, int );
 151 int playlist_ItemRelease( playlist_item_t * );
 152
 153 void playlist_release_current_input( playlist_t * p_playlist );
 154 void playlist_set_current_input(
 155     playlist_t * p_playlist, input_thread_t * p_input );
 156
 157
 158 /**
 159  * @}
 160  */
 161
 162 #define PLAYLIST_DEBUG 1
 163 //#undef PLAYLIST_DEBUG2
 164
 165 #ifdef PLAYLIST_DEBUG
 166  #define PL_DEBUG( msg, args... ) msg_Dbg( p_playlist, msg, ## args )
 167  #ifdef PLAYLIST_DEBUG2
 168   #define PL_DEBUG2( msg, args... ) msg_Dbg( p_playlist, msg, ## args )
 169  #else
 170   #define PL_DEBUG2( msg, args... ) {}
 171  #endif
 172 #else
 173  #define PL_DEBUG( msg, args ... ) {}
 174  #define PL_DEBUG2( msg, args... ) {}
 175 #endif
 176
 177 #define PLI_NAME( p ) p && p->p_input ? p->p_input->psz_name : "null"
 178
 179 #define PL_LOCK_IF( cond ) pl_lock_if( p_playlist, cond )
 180 static inline void pl_lock_if( playlist_t * p_playlist, bool cond )
 181 {
 182     if( cond ) PL_LOCK; else PL_ASSERT_LOCKED;
 183 }
 184
 185 #define PL_UNLOCK_IF( cond ) pl_unlock_if( p_playlist, cond )
 186 static inline void pl_unlock_if( playlist_t * p_playlist, bool cond )
 187 {
 188     if( cond ) PL_UNLOCK;
 189 }
 190
 191 #endif /* !__LIBVLC_PLAYLIST_INTERNAL_H */