git.sesse.net Git - vlc/blob - src/control/playlist.c

   1 /*****************************************************************************
   2  * playlist.c: libvlc new API playlist handling functions
   3  *****************************************************************************
   4  * Copyright (C) 2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *
   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.
  13  *
  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.
  18  *
  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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #include "libvlc_internal.h"
  25
  26 #include <vlc/libvlc.h>
  27 #include <vlc_playlist.h>
  28
  29 #include <assert.h>
  30
  31 #define __LIBVLC__
  32 #include "../playlist/playlist_internal.h"
  33
  34 #define PL (libvlc_priv (p_instance->p_libvlc_int)->p_playlist)
  35
  36 static inline int playlist_was_locked( libvlc_instance_t *p_instance )
  37 {
  38     int was_locked;
  39     vlc_mutex_lock( &p_instance->instance_lock );
  40     was_locked = p_instance->b_playlist_locked;
  41     vlc_mutex_unlock( &p_instance->instance_lock );
  42     return was_locked;
  43 }
  44
  45 static inline void playlist_mark_locked( libvlc_instance_t *p_instance,
  46                                          int locked )
  47 {
  48     vlc_mutex_lock( &p_instance->instance_lock );
  49     p_instance->b_playlist_locked = locked;
  50     vlc_mutex_unlock( &p_instance->instance_lock );
  51 }
  52
  53 void libvlc_playlist_loop( libvlc_instance_t *p_instance, int loop,
  54                            libvlc_exception_t *p_e)
  55 {
  56     VLC_UNUSED(p_e);
  57
  58     assert( PL );
  59     var_SetBool( PL, "loop", loop );
  60 }
  61
  62 void libvlc_playlist_play( libvlc_instance_t *p_instance, int i_id,
  63                            int i_options, char **ppsz_options,
  64                            libvlc_exception_t *p_e )
  65 {
  66     VLC_UNUSED(p_e); VLC_UNUSED(i_options); VLC_UNUSED(ppsz_options);
  67
  68     int did_lock = 0;
  69     assert( PL );
  70     ///\todo Handle additionnal options
  71
  72     if( PL->items.i_size == 0 ) RAISEVOID( "Empty playlist" );
  73     if( i_id > 0 )
  74     {
  75         playlist_item_t *p_item;
  76         if (! playlist_was_locked( p_instance ) )
  77         {
  78             playlist_mark_locked( p_instance, 1 );
  79             playlist_Lock( PL );
  80             did_lock = 1;
  81         }
  82
  83         p_item = playlist_ItemGetByInputId( PL, i_id,
  84                                             PL->p_root_category );
  85         if( p_item )
  86             playlist_Control( PL, PLAYLIST_VIEWPLAY, pl_Locked,
  87                               PL->p_root_category, p_item );
  88        else
  89             RAISEVOID( "Unable to find item" );
  90
  91         if( did_lock == 1 )
  92         {
  93             playlist_Unlock( PL );
  94             playlist_mark_locked( p_instance, 0 );
  95         }
  96     }
  97     else
  98     {
  99         playlist_Control( PL, PLAYLIST_PLAY,
 100                           playlist_was_locked( p_instance ) );
 101     }
 102 }
 103
 104 void libvlc_playlist_pause( libvlc_instance_t *p_instance,
 105                             libvlc_exception_t *p_e )
 106 {
 107     assert( PL );
 108     if( playlist_Control( PL, PLAYLIST_PAUSE,
 109                           playlist_was_locked( p_instance ) ) != VLC_SUCCESS )
 110         RAISEVOID( "Empty playlist" );
 111 }
 112
 113
 114 void libvlc_playlist_stop( libvlc_instance_t *p_instance,
 115                            libvlc_exception_t *p_e )
 116 {
 117     assert( PL );
 118     if( playlist_Control( PL, PLAYLIST_STOP,
 119                           playlist_was_locked( p_instance ) ) != VLC_SUCCESS )
 120         RAISEVOID( "Empty playlist" );
 121 }
 122
 123 void libvlc_playlist_clear( libvlc_instance_t *p_instance,
 124                             libvlc_exception_t *p_e )
 125 {
 126     VLC_UNUSED(p_e);
 127
 128     assert( PL );
 129     playlist_Clear( PL, playlist_was_locked( p_instance ) );
 130 }
 131
 132 void libvlc_playlist_next( libvlc_instance_t *p_instance,
 133                            libvlc_exception_t *p_e )
 134 {
 135     assert( PL );
 136     if( playlist_Control( PL, PLAYLIST_SKIP, playlist_was_locked( p_instance ),
 137                           1 ) != VLC_SUCCESS )
 138         RAISEVOID( "Empty playlist" );
 139 }
 140
 141 void libvlc_playlist_prev( libvlc_instance_t *p_instance,
 142                            libvlc_exception_t *p_e )
 143 {
 144     if( playlist_Control( PL, PLAYLIST_SKIP, playlist_was_locked( p_instance ),
 145                           -1  ) != VLC_SUCCESS )
 146         RAISEVOID( "Empty playlist" );
 147 }
 148
 149 int libvlc_playlist_add( libvlc_instance_t *p_instance, const char *psz_uri,
 150                          const char *psz_name, libvlc_exception_t *p_e )
 151 {
 152     return libvlc_playlist_add_extended( p_instance, psz_uri, psz_name,
 153                                          0, NULL, p_e );
 154 }
 155
 156 static int PlaylistAddExtended( libvlc_instance_t *p_instance,
 157                                 const char *psz_uri, const char *psz_name,
 158                                 int i_options, const char **ppsz_options,
 159                                 unsigned i_option_flags,
 160                                 libvlc_exception_t *p_e )
 161 {
 162     assert( PL );
 163     if( playlist_was_locked( p_instance ) )
 164     {
 165         libvlc_exception_raise( p_e, "You must unlock playlist before "
 166                                "calling libvlc_playlist_add" );
 167         return VLC_EGENERIC;
 168     }
 169     return playlist_AddExt( PL, psz_uri, psz_name,
 170                             PLAYLIST_INSERT, PLAYLIST_END, -1,
 171                             i_options, ppsz_options, i_option_flags,
 172                             true, pl_Unlocked );
 173 }
 174 int libvlc_playlist_add_extended( libvlc_instance_t *p_instance,
 175                                   const char *psz_uri, const char *psz_name,
 176                                   int i_options, const char **ppsz_options,
 177                                   libvlc_exception_t *p_e )
 178 {
 179     return PlaylistAddExtended( p_instance, psz_uri, psz_name,
 180                                 i_options, ppsz_options, VLC_INPUT_OPTION_TRUSTED,
 181                                 p_e );
 182 }
 183 int libvlc_playlist_add_extended_untrusted( libvlc_instance_t *p_instance,
 184                                             const char *psz_uri, const char *psz_name,
 185                                             int i_options, const char **ppsz_options,
 186                                             libvlc_exception_t *p_e )
 187 {
 188     return PlaylistAddExtended( p_instance, psz_uri, psz_name,
 189                                 i_options, ppsz_options, 0,
 190                                 p_e );
 191 }
 192
 193 int libvlc_playlist_delete_item( libvlc_instance_t *p_instance, int i_id,
 194                                  libvlc_exception_t *p_e )
 195 {
 196     assert( PL );
 197
 198     if( playlist_DeleteFromInput( PL, i_id,
 199                                   playlist_was_locked( p_instance ) ) )
 200     {
 201         libvlc_exception_raise( p_e, "deletion failed" );
 202         return VLC_ENOITEM;
 203     }
 204     return VLC_SUCCESS;
 205 }
 206
 207 int libvlc_playlist_isplaying( libvlc_instance_t *p_instance,
 208                                libvlc_exception_t *p_e )
 209 {
 210     VLC_UNUSED(p_e);
 211
 212     assert( PL );
 213     return playlist_Status( PL ) == PLAYLIST_RUNNING;
 214 }
 215
 216 int libvlc_playlist_items_count( libvlc_instance_t *p_instance,
 217                                  libvlc_exception_t *p_e )
 218 {
 219     VLC_UNUSED(p_e);
 220
 221     assert( PL );
 222     return playlist_CurrentSize( PL );
 223 }
 224
 225 int libvlc_playlist_get_current_index ( libvlc_instance_t *p_instance,
 226                                         libvlc_exception_t *p_e )
 227 {
 228     VLC_UNUSED(p_e);
 229
 230     assert( PL );
 231     playlist_item_t *p_item = playlist_CurrentPlayingItem( PL );
 232     if( !p_item )
 233         return -1;
 234     return p_item->i_id;
 235 }
 236
 237 void libvlc_playlist_lock( libvlc_instance_t *p_instance )
 238 {
 239     assert( PL );
 240     playlist_Lock( PL );
 241     p_instance->b_playlist_locked = 1;
 242 }
 243
 244 void libvlc_playlist_unlock( libvlc_instance_t *p_instance )
 245 {
 246     assert( PL );
 247     p_instance->b_playlist_locked = 0;
 248     playlist_Unlock( PL );
 249 }
 250
 251 libvlc_media_player_t * libvlc_playlist_get_media_player(
 252                                 libvlc_instance_t *p_instance,
 253                                 libvlc_exception_t *p_e )
 254 {
 255     libvlc_media_player_t *p_mi;
 256     assert( PL );
 257     input_thread_t * input = playlist_CurrentInput( PL );
 258     if( input )
 259     {
 260         p_mi = libvlc_media_player_new_from_input_thread(
 261                             p_instance, input, p_e );
 262         vlc_object_release( input );
 263     }
 264     else
 265     {
 266         /* no active input */
 267         p_mi = NULL;
 268         libvlc_exception_raise( p_e, "No active input" );
 269     }
 270
 271     return p_mi;
 272 }
 273