git.sesse.net Git - vlc/blob - src/playlist/playlist_internal.h

   1 /*****************************************************************************
   2  * playlist_internal.h : Functions for use by the playlist
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 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_internal.h"
  38 #include <assert.h>
  39
  40 struct playlist_preparse_t
  41 {
  42     VLC_COMMON_MEMBERS
  43     vlc_mutex_t     lock;
  44     int             i_waiting;
  45     input_item_t  **pp_waiting;
  46 };
  47
  48 struct playlist_fetcher_t
  49 {
  50     VLC_COMMON_MEMBERS
  51     vlc_mutex_t     lock;
  52     int             i_art_policy;
  53     int             i_waiting;
  54     input_item_t    **pp_waiting;
  55
  56     DECL_ARRAY(playlist_album_t) albums;
  57 };
  58
  59 /*****************************************************************************
  60  * Prototypes
  61  *****************************************************************************/
  62
  63 /* Global thread */
  64 #define playlist_ThreadCreate(a) __playlist_ThreadCreate(VLC_OBJECT(a))
  65 void        __playlist_ThreadCreate   ( vlc_object_t * );
  66
  67 /* Creation/Deletion */
  68 playlist_t *playlist_Create   ( vlc_object_t * );
  69
  70 /* Engine */
  71 void playlist_MainLoop( playlist_t * );
  72 void playlist_LastLoop( playlist_t * );
  73 void playlist_PreparseLoop( playlist_preparse_t * );
  74 void playlist_FetcherLoop( playlist_fetcher_t * );
  75
  76 void ResetCurrentlyPlaying( playlist_t *, bool, playlist_item_t * );
  77
  78 /* Control */
  79 playlist_item_t * playlist_NextItem  ( playlist_t * );
  80 int playlist_PlayItem  ( playlist_t *, playlist_item_t * );
  81
  82 /* Load/Save */
  83 int playlist_MLLoad( playlist_t *p_playlist );
  84 int playlist_MLDump( playlist_t *p_playlist );
  85
  86 /**********************************************************************
  87  * Item management
  88  **********************************************************************/
  89
  90 void playlist_SendAddNotify( playlist_t *p_playlist, int i_item_id,
  91                              int i_node_id, bool b_signal );
  92
  93 /* Tree walking */
  94 int playlist_GetAllEnabledChildren( playlist_t *p_playlist,
  95                                     playlist_item_t *p_node,
  96                                     playlist_item_t ***ppp_items );
  97 playlist_item_t *playlist_GetNextLeaf( playlist_t *p_playlist,
  98                                     playlist_item_t *p_root,
  99                                     playlist_item_t *, bool, bool );
 100 playlist_item_t *playlist_GetPrevLeaf( playlist_t *p_playlist,
 101                                     playlist_item_t *p_root,
 102                                     playlist_item_t *, bool, bool );
 103 playlist_item_t *playlist_GetLastLeaf( playlist_t *p_playlist,
 104                                     playlist_item_t *p_root );
 105
 106 playlist_item_t *playlist_ItemFindFromInputAndRoot( playlist_t *p_playlist,
 107                                    int i_input_id, playlist_item_t *p_root,
 108                                    bool );
 109
 110 int playlist_DeleteFromItemId( playlist_t*, int );
 111 int playlist_ItemDelete ( playlist_item_t * );
 112
 113 static inline void playlist_release_current_input( playlist_t * p_playlist )
 114 {
 115     vlc_assert_locked( &p_playlist->object_lock );
 116
 117     if( !p_playlist->p_input ) return;
 118
 119     input_thread_t * p_input = p_playlist->p_input;
 120     p_playlist->p_input = NULL;
 121
 122     /* Release the playlist lock, because we may get stuck
 123      * in vlc_object_release() for some time. */
 124     PL_UNLOCK;
 125     vlc_object_release( p_input );
 126     PL_LOCK;
 127 }
 128
 129 static inline void playlist_set_current_input(
 130     playlist_t * p_playlist, input_thread_t * p_input )
 131 {
 132     vlc_assert_locked( &p_playlist->object_lock );
 133
 134     playlist_release_current_input( p_playlist );
 135
 136     if( p_input )
 137     {
 138         vlc_object_yield( p_input );
 139         p_playlist->p_input = p_input;
 140     }
 141 }
 142
 143
 144 /**
 145  * @}
 146  */
 147
 148 #define PLAYLIST_DEBUG 1
 149 //#undef PLAYLIST_DEBUG2
 150
 151 #ifdef PLAYLIST_DEBUG
 152  #define PL_DEBUG( msg, args... ) msg_Dbg( p_playlist, msg, ## args )
 153  #ifdef PLAYLIST_DEBUG2
 154   #define PL_DEBUG2( msg, args... ) msg_Dbg( p_playlist, msg, ## args )
 155  #else
 156   #define PL_DEBUG2( msg, args... ) {}
 157  #endif
 158 #else
 159  #define PL_DEBUG( msg, args ... ) {}
 160  #define PL_DEBUG2( msg, args... ) {}
 161 #endif
 162
 163 #define PLI_NAME( p ) p && p->p_input ? p->p_input->psz_name : "null"
 164 #endif /* !__LIBVLC_PLAYLIST_INTERNAL_H */